LOCAL CLIMATOLOGICAL DATA Monthly Summary April 2018 Station: Pasadena 2N Latitude: 39° 08' 31" N Longitude: 76° 30' 27" W Elevation (ground): 43 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind |Solar | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak |2Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ W | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | a | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | t | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | t | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | s | | e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | m^2 | | | | | | | | | | |9 blw snw| | | | | | | | | | | | | | | | 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |01| 64.1 | 44.9 | 54.5 | 54.6 | 39| 57| 10| 0|.........| 0| 0.00| 0.0| 30.08| 29.98|30.019| 2.4| 1.7|230| 18|SSE| 11|168| 72 | |02| 50.4 | 39.1 | 44.8 | 43.0 | 37| 80| 20| 0|.........| 0| 0.11| 0.0| 30.18| 29.92|30.074| 2.6| 2.4| 38| 22| NW| 9|343| 61 | |03| 48.4 | 40.1 | 44.3 | 44.8 | 41| 86| 21| 0|.........| 0| 0.01| 0.0| 30.17| 29.76|30.019| 2.2| 1.8|151| 20|SSE| 7|166| 48 | |04| 71.0 | 41.2 | 56.1 | 51.0 | 38| 67| 9| 0|.........| 0| 0.00| 0.0| 30.02| 29.47|29.690| 5.0| 4.4|279| 40|WSW| 18|282| 123 | |05| 53.0 | 33.8 | 43.4 | 42.1 | 22| 46| 21| 0|.........| 0| 0.00| 0.0| 30.20| 30.02|30.123| 4.0| 3.8|285| 23| NW| 11|294| 219 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 72.8 | 41.6 | 57.2 | 54.5 | 36| 55| 7| 0|.........| 0| 0.00| 0.0| 30.13| 29.63|29.879| 3.8| 3.4|182| 24| S| 12|197| 138 | |07| 65.8 | 39.3 | 52.6 | 45.9 | 27| 49| 12| 0|.........| 0| 0.00| 0.0| 29.95| 29.63|29.865| 3.0| 2.6|323| 19| W| 8|203| 79 | |08| 50.6 | 33.5 | 42.0 | 41.3 | 20| 43| 22| 0|.........| 0| 0.00| 0.0| 30.08| 29.87|29.946| 4.0| 3.9|317| 20| NW| 10|295| 220 | |09| 44.2 | 32.5 | 38.3*| 39.8 | 26| 59| 26| 0|.........| 0| 0.02| 0.0| 30.25| 30.08|30.170| 2.1| 1.4| 91| 14| E| 9|165| 96 | |10| 55.1 | 32.7 | 43.9 | 44.1 | 32| 65| 21| 0|.........| 0| 0.01| 0.0| 30.22| 30.11|30.170| 1.9| 1.7|323| 18| W| 8|280| 217 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 57.4 | 31.5 | 44.5 | 44.1 | 32| 63| 20| 0|.........| 0| 0.00| 0.0| 30.22| 30.06|30.151| 2.3| 2.1|161| 16|SSE| 9|177| 132 | |12| 75.1 | 37.7 | 56.4 | 58.6 | 41| 56| 8| 0|.........| 0| 0.00| 0.0| 30.11| 29.78|29.972| 3.7| 3.5|178| 24|SSE| 13|177| 204 | |13| 83.2 | 61.5 | 72.3 | 72.4 | 49| 44| 0| 8|.........| 0| 0.00| 0.0| 29.98| 29.83|29.896| 4.7| 4.5|181| 20|WSW| 11|167| 225 | |14| 87.0*| 62.9 | 74.9*| 74.0 | 56| 55| 0| 10|.........| 0| 0.00| 0.0| 29.96| 29.82|29.894| 4.5| 4.3|188| 27|SSE| 13|151| 225 | |15| 64.2 | 43.5 | 53.8 | 49.4 | 46| 89| 11| 0|.........| 0| 0.59| 0.0| 30.12| 29.79|30.003| 6.4| 6.2| 61| 26| NE| 15| 61| 32 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 60.9 | 45.5 | 53.2 | 53.0 | 46| 80| 11| 0|.........| 0| 1.22| 0.0| 29.80| 29.40|29.567| 4.9| 1.3|275| 28| W| 13| 46| 91 | |17| 47.2 | 37.5 | 42.3 | 42.9 | 28| 56| 22| 0|.........| 0| 0.00| 0.0| 29.87| 29.71|29.770| 4.8| 4.8|272| 28| W| 12|289| 89 | |18| 61.8 | 30.3*| 46.0 | 45.8 | 33| 62| 19| 0|.........| 0| 0.00| 0.0| 29.94| 29.68|29.835| 2.2| 1.2|259| 18| W| 8|280| 235 | |19| 60.0 | 35.3 | 47.7 | 48.7 | 37| 66| 17| 0|.........| 0| 0.00| 0.0| 30.13| 29.57|29.810| 3.8| 3.4|295| 31|WNW| 14|296| 81 | |20| 60.9 | 34.6 | 47.8 | 47.1 | 28| 50| 17| 0|.........| 0| 0.00| 0.0| 30.39| 30.12|30.248| 3.7| 3.2|302| 19|NNW| 10|297| 245 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 62.1 | 31.6 | 46.8 | 47.8 | 32| 57| 18| 0|.........| 0| 0.00| 0.0| 30.48| 30.32|30.399| 2.3| 1.2| 83| 17| NE| 8| 58| 230 | |22| | | | | | | | | | | | | | | | | | | | | | | | |23| | | | | | | | | | | | | | | | | | | | | | | | |24| | | | | | | | | | | | | | | | | | | | | | | | |25| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |26| | | | | | | | | | | | | | | | | | | | | | | | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1295.2| 830.6|------|------|---|----| 312| 18| Days | 1.96| 0.0| 30.48| 29.40|29.976| 3.5| 0.8|259| 40|WSW| 18|282| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 61.7| 39.6| 50.6 | 49.8 | 36|61.1|----|----|≥.01 Inch 6|11.28| 17.5| 21 | 16 |------|----|----|---| 4 | 4 | 146| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |≥1.0 Inch 0| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |4308| 21|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 1.81| 15-16| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 3 | 0 |----|----| Clear 0 Partly Cloudy 0 Cloudy 0 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations Units: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. for 24 hours. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F. Data in columns 9, 10, 12 are entered manually by the station observer. Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations. Column 23: Solar Radiation is measured in Watts/m^2 and is continuously averaged for 24 hours. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean.OBSERVATIONS AT 3-HOUR INTERVALS April 2018: Pasadena 2N +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 1 | APR 2 | APR 3 | | | | | |00| 0|30.07| 0.00| 46| 36| 67|17| 7| 18| 0|30.00| 0.00| 49| 39| 68|30| 0| 2| 0|30.17| 0.00| 40| 36| 86|15| 0| 1| |03| 0|30.03| 0.00| 48| 37| 66|22| 3| 8| 0|29.98| 0.00| 50| 40| 70|30| 2| 4| 0|30.15| 0.00| 43| 38| 81|14| 3| 7| |06| 0|30.01| 0.00| 49| 36| 61|22| 0| 2| 0|29.96| 0.00| 40| 37| 88|03| 6| 13| 0|30.13| 0.00| 43| 38| 82|13| 3| 8| |09| 102|30.01| 0.00| 53| 38| 56|23| 2| 6| 132|30.07| 0.00| 40| 36| 86|06| 4| 9| 62|30.11| 0.00| 43| 39| 84|12| 2| 9| |12| 199|30.02| 0.00| 60| 39| 46|28| 2| 8| 139|30.11| 0.00| 41| 36| 83|01| 3| 8| 167|30.05| 0.00| 44| 41| 88|11| 2| 6| |15| 181|29.99| 0.00| 63| 43| 48|25| 4| 10| 148|30.11| 0.00| 43| 37| 78|02| 2| 7| 95|29.99| 0.00| 48| 43| 84|21| 3| 6| |18| 76|30.00| 0.00| 62| 45| 54|29| 3| 9| 65|30.13| 0.00| 45| 38| 77|07| 3| 6| 39|29.93| 0.00| 48| 44| 87|33| 0| 2| |21| 0|30.04| 0.00| 56| 41| 58|30| 0| 3| 0|30.15| 0.00| 42| 37| 82|15| 0| 3| 0|29.76| 0.00| 48| 45| 91|05| 4| 12| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |00| 0|29.79| 0.00| 45| 42| 92|07| 0| 0| 0|30.02| 0.00| 41| 21| 44|28| 7| 21| 0|30.12| 0.00| 42| 31| 65|15| 3| 7| |03| 0|29.68| 0.00| 45| 43| 93|11| 0| 1| 0|30.07| 0.00| 37| 20| 50|27| 3| 13| 0|30.12| 0.00| 43| 36| 76|15| 3| 7| |06| 0|29.57| 0.00| 45| 43| 94|11| 0| 0| 0|30.13| 0.00| 35| 19| 53|27| 3| 9| 0|30.05| 0.00| 43| 39| 84|10| 2| 9| |09| 111|29.52| 0.00| 51| 49| 95|10| 0| 1| 54|30.18| 0.00| 38| 18| 45|28| 7| 14| 137|29.98| 0.00| 45| 40| 84|20| 2| 11| |12| 32|29.51| 0.00| 70| 59| 67|27| 6| 16| 838|30.19| 0.00| 45| 22| 39|26| 3| 18| 334|29.91| 0.00| 54| 34| 46|20| 7| 16| |15| 584|29.62| 0.00| 60| 30| 32|27| 12| 30| 795|30.14| 0.00| 50| 24| 35|26| 7| 15| 413|29.79| 0.00| 66| 35| 32|18| 3| 12| |18| 51|29.77| 0.00| 52| 25| 35|29| 9| 25| 53|30.09| 0.00| 50| 22| 33|29| 5| 12| 102|29.68| 0.00| 69| 33| 26|18| 10| 21| |21| 0|29.92| 0.00| 45| 23| 42|28| 4| 21| 0|30.11| 0.00| 40| 25| 54|28| 0| 2| 0|29.66| 0.00| 63| 36| 37|17| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |00| 0|29.64| 0.00| 66| 40| 39|18| 5| 16| 0|29.89| 0.00| 39| 19| 44|31| 2| 7| 0|30.08| 0.00| 40| 18| 42|28| 2| 6| |03| 0|29.72| 0.00| 56| 41| 58|31| 6| 15| 0|29.88| 0.00| 37| 21| 53|32| 4| 12| 0|30.13| 0.00| 34| 21| 61|05| 0| 1| |06| 0|29.82| 0.00| 49| 35| 59|32| 4| 10| 0|29.91| 0.00| 35| 20| 55|30| 4| 13| 0|30.17| 0.00| 37| 20| 49|04| 3| 6| |09| 54|29.91| 0.00| 42| 28| 57|32| 5| 11| 42|29.96| 0.00| 36| 21| 53|33| 3| 7| 107|30.24| 0.00| 38| 20| 49|06| 2| 9| |12| 244|29.95| 0.00| 42| 23| 46|01| 3| 10| 946|29.95| 0.00| 45| 20| 37|34| 1| 9| 483|30.22| 0.00| 43| 27| 52|10| 6| 11| |15| 234|29.91| 0.00| 44| 18| 35|31| 3| 8| 870|29.91| 0.00| 49| 19| 30|30| 5| 15| 139|30.17| 0.00| 43| 29| 59|11| 3| 11| |18| 67|29.92| 0.00| 43| 21| 41|32| 1| 4| 63|29.95| 0.00| 48| 21| 34|32| 3| 14| 33|30.15| 0.00| 43| 32| 65|12| 2| 5| |21| 0|29.91| 0.00| 40| 22| 48|26| 0| 3| 0|30.03| 0.00| 42| 18| 37|31| 4| 10| 0|30.15| 0.00| 42| 35| 76|09| 0| 2| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |00| 0|30.17| 0.00| 38| 35| 89|11| 1| 2| 0|30.20| 0.00| 39| 28| 63|02| 0| 2| 0|30.10| 0.00| 42| 36| 78|17| 0| 0| |03| 0|30.17| 0.00| 39| 37| 92|29| 0| 2| 0|30.19| 0.00| 32| 27| 82|02| 0| 0| 0|30.05| 0.00| 43| 36| 76|21| 2| 8| |06| 0|30.16| 0.00| 34| 32| 92|31| 0| 2| 0|30.20| 0.00| 35| 29| 80|02| 0| 1| 0|30.07| 0.00| 39| 34| 83|22| 0| 0| |09| 56|30.22| 0.00| 41| 34| 77|28| 7| 12| 172|30.22| 0.00| 43| 32| 65|04| 2| 3| 137|30.10| 0.00| 52| 41| 66|20| 0| 3| |12| 860|30.20| 0.00| 48| 32| 54|30| 3| 15| 251|30.20| 0.00| 49| 32| 51|09| 2| 7| 431|30.06| 0.00| 66| 43| 43|21| 3| 9| |15| 775|30.14| 0.00| 53| 29| 39|30| 3| 11| 267|30.11| 0.00| 52| 32| 46|13| 3| 12| 766|29.90| 0.00| 72| 45| 38|16| 9| 22| |18| 74|30.12| 0.00| 53| 27| 37|34| 1| 7| 44|30.07| 0.00| 53| 35| 50|14| 2| 9| 63|29.80| 0.00| 70| 48| 45|15| 4| 9| |21| 0|30.17| 0.00| 43| 29| 58|03| 2| 7| 0|30.07| 0.00| 47| 34| 61|17| 5| 13| 0|29.82| 0.00| 70| 46| 42|17| 6| 16| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |00| 0|29.85| 0.00| 68| 45| 43|19| 8| 16| 0|29.89| 0.00| 74| 52| 47|20| 6| 14| 0|29.91| 0.00| 63| 55| 75|16| 3| 6| |03| 0|29.87| 0.00| 66| 45| 46|19| 6| 16| 0|29.86| 0.00| 70| 54| 56|19| 4| 14| 0|29.96| 0.00| 56| 51| 83|06| 4| 11| |06| 0|29.90| 0.00| 64| 45| 50|18| 4| 10| 0|29.91| 0.00| 66| 53| 64|16| 3| 10| 0|30.03| 0.00| 51| 47| 87|07| 4| 13| |09| 93|29.98| 0.00| 66| 47| 51|19| 4| 13| 54|29.94| 0.00| 70| 58| 65|23| 4| 8| 32|30.09| 0.00| 49| 46| 89|04| 6| 17| |12| 812|29.94| 0.00| 79| 49| 34|17| 6| 11| 816|29.93| 0.00| 82| 62| 52|16| 4| 12| 74|30.10| 0.00| 47| 45| 91|08| 3| 13| |15| 775|29.89| 0.00| 82| 53| 37|14| 5| 11| 830|29.86| 0.00| 86| 59| 41|18| 8| 16| 79|30.04| 0.00| 48| 46| 92|05| 7| 13| |18| 114|29.84| 0.00| 79| 53| 40|14| 5| 11| 102|29.85| 0.00| 83| 58| 42|18| 6| 18| 25|30.01| 0.00| 45| 43| 92|06| 8| 16| |21| 0|29.87| 0.00| 73| 51| 46|17| 6| 11| 0|29.89| 0.00| 68| 56| 66|14| 3| 7| 0|29.94| 0.07| 44| 42| 93|06| 5| 17| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |00| 0|29.80| 0.14| 46| 44| 94|05| 10| 19| 0|29.71| 0.00| 46| 32| 58|30| 3| 11| 0|29.87| 0.00| 38| 27| 65|28| 0| 4| |03| 0|29.58| 0.00| 53| 52| 95|09| 6| 18| 0|29.75| 0.00| 42| 29| 60|28| 5| 12| 0|29.87| 0.00| 32| 26| 79|25| 0| 2| |06| 0|29.51| 0.25| 59| 57| 95|08| 2| 10| 0|29.76| 0.00| 38| 28| 67|28| 2| 8| 0|29.89| 0.00| 31| 25| 79|24| 0| 3| |09| 33|29.43| 0.00| 59| 57| 95|12| 2| 9| 204|29.80| 0.00| 42| 29| 59|22| 8| 15| 42|29.92| 0.00| 42| 28| 58|28| 1| 12| |12| 345|29.47| 0.00| 54| 48| 80|27| 6| 15| 202|29.78| 0.00| 44| 28| 53|26| 3| 16| 875|29.87| 0.00| 53| 31| 43|25| 5| 10| |15| 436|29.55| 0.00| 51| 43| 73|27| 9| 25| 130|29.73| 0.00| 46| 28| 50|24| 3| 14| 807|29.81| 0.00| 61| 34| 36|29| 3| 9| |18| 44|29.61| 0.00| 52| 39| 61|28| 5| 21| 109|29.75| 0.00| 45| 26| 47|27| 7| 19| 90|29.77| 0.00| 60| 41| 50|09| 3| 10| |21| 0|29.67| 0.00| 48| 36| 61|30| 3| 9| 0|29.80| 0.00| 44| 28| 52|27| 6| 15| 0|29.75| 0.00| 49| 41| 75|10| 1| 2| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.19 | 0.27 | 0.32 | 0.34 | 0.40 | 0.48 | 0.56 | 0.64 | 0.73 | 0.77 | 0.84 | 0.92 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0400 | 0403 | 0406 | 0403 | 0403 | 0418 | 0432 | 0451 | 0513 | 0532 | 0603 | 0631 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated is the ending time of the interval. Date and time are not entered for trace amounts.OBSERVATIONS AT 3-HOUR INTERVALS April 2018: Pasadena 2N +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 19 | APR 20 | APR 21 | | | | | |00| 0|29.68| 0.00| 49| 43| 79|16| 0| 0| 0|30.12| 0.00| 35| 27| 72|25| 1| 2| 0|30.39| 0.00| 47| 31| 54|05| 4| 10| |03| 0|29.60| 0.00| 44| 41| 89|16| 0| 0| 0|30.17| 0.00| 39| 24| 55|27| 5| 13| 0|30.42| 0.00| 41| 28| 58|06| 1| 6| |06| 0|29.64| 0.00| 50| 41| 71|03| 3| 6| 0|30.23| 0.00| 35| 25| 66|28| 3| 6| 0|30.44| 0.00| 33| 27| 80|05| 0| 0| |09| 160|29.68| 0.00| 51| 44| 75|24| 2| 5| 49|30.25| 0.00| 42| 27| 55|29| 4| 12| 113|30.48| 0.00| 45| 30| 55|30| 3| 6| |12| 23|29.73| 0.00| 56| 42| 59|28| 9| 30| 884|30.27| 0.00| 52| 29| 41|31| 3| 8| 854|30.44| 0.00| 54| 32| 42|33| 3| 6| |15|1137|29.83| 0.00| 55| 37| 51|28| 10| 28| 837|30.24| 0.00| 58| 31| 37|25| 7| 16| 842|30.35| 0.00| 62| 39| 43|07| 2| 7| |18| 111|29.97| 0.00| 48| 29| 47|28| 10| 25| 51|30.25| 0.00| 59| 31| 34|29| 6| 15| 121|30.32| 0.00| 59| 35| 41|17| 2| 8| |21| 0|30.10| 0.00| 44| 29| 54|28| 5| 14| 0|30.31| 0.00| 50| 32| 50|29| 1| 4| 0|30.35| 0.00| 47| 35| 62|14| 1| 2| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |00| 0|30.35| 0.00| 46| 39| 77|16| 3| 6| | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 25 | APR 26 | APR 27 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 28 | APR 29 | APR 30 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+WEATHER NOTES SUMMARY BY HOURS +--+-----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive 0.01" pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+----+------+---+---+---+-----+----+----+ |00| 0|29.991| 47| 35| 66| 3.0| 19 | 1.0| |03| 0|29.965| 45| 36| 70| 2.7| 25 | 0.7| |06| 0|29.974| 43| 35| 73| 2.2| 02 | 0.4| |09| 93|30.005| 47| 36| 68| 3.3| 28 | 1.2| |12| 467|29.996| 54| 37| 55| 3.9| 26 | 1.3| |15| 530|29.957| 57| 36| 48| 5.2| 25 | 2.2| |18| 71|29.951| 55| 35| 49| 4.6| 26 | 1.2| |21| 0|29.976| 50| 35| 59| 2.9| 22 | 0.6| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)April 2018: Pasadena 2N ---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | D| A.M. Hour Ending at | P.M. Hour Ending at |D a| | |a t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- 01| | | | | | | | | | | | | | | | | | | | | | | | |01 02| | | |0.06|0.04|0.01| | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | |0.01| | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | |0.01|0.01|09 10|0.01| | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | |0.01|0.03| |0.01|0.07|0.07|0.03|0.11|0.02|0.06|0.04|0.07|0.07|15 | | | | | | | | | | | | | | | | | | | | | | | | | 16|0.22|0.03| |0.34|0.33|0.15|0.10| |0.02| |0.03| | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.23|0.03|0.00|0.40|0.37|0.16|0.10|0.00|0.02|0.00|0.03|0.01|0.03|0.00|0.01|0.07|0.07|0.03|0.11|0.02|0.07|0.04|0.08|0.08|Sum ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are typically entered in the last column (hour ending at 12 A.M.)