LOCAL CLIMATOLOGICAL DATA Monthly Summary December 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 | m² | | | | | | | | | | |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| 42.5 | 29.4 | 36.0 | 37.9 | 35| 89| 29| 0|.........| 0| 0.20| 0.0| 30.20| 29.91|30.118| 0.9| 0.8| 54| 8| N| 5| 44| 21 | |02| 59.0 | 42.3 | 50.7 | 51.1 | 50| 94| 14| 0|.........| 0| 0.21| 0.0| 29.91| 29.59|29.695| 1.2| 1.1|192| 11|SSW| 6|165| 19 | |03| 59.7*| 44.7 | 52.2*| 51.8 | 43| 73| 12| 0|.........| 0| 0.00| 0.0| 29.84| 29.59|29.720| 3.1| 2.9|284| 24| W| 10|289| 56 | |04| 44.7 | 27.5 | 36.1 | 38.0 | 28| 69| 28| 0|.........| 0| 0.00| 0.0| 30.09| 29.83|29.998| 2.3| 2.3|299| 17|WNW| 7|301| 25 | |05| 37.6 | 26.4 | 32.0 | 31.5 | 23| 72| 33| 0|.........| 0| 0.00| 0.0| 30.21| 30.05|30.094| 1.6| 1.1|320| 13|WNW| 7|303| 45 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 42.6 | 24.6 | 33.6 | 35.3 | 25| 67| 31| 0|.........| 0| 0.00| 0.0| 30.32| 30.20|30.243| 2.3| 1.8|228| 17| W| 8|273| 55 | |07| 42.7 | 26.8 | 34.8 | 34.2 | 23| 64| 30| 0|.........| 0| 0.00| 0.0| 30.47| 30.21|30.375| 2.0| 1.7|304| 16| W| 7|293| 51 | |08| 38.3 | 19.9*| 29.1*| 29.0 | 20| 70| 36| 0|.........| 0| 0.00| 0.0| 30.57| 30.44|30.511| 1.2| 1.1|294| 16|WNW| 7|291| 58 | |09| 32.9 | 28.7 | 30.8 | 31.6 | 22| 67| 34| 0|.........| 0| 0.00| 0.0| 30.56| 30.12|30.359| 1.9| 1.8| 30| 12| N| 6| 37| 17 | |10| 39.4 | 24.2 | 31.8 | 31.3 | 23| 71| 33| 0|.........| 0| 0.00| 0.0| 30.19| 30.08|30.136| 1.9| 1.8|352| 13| NW| 6| 31| 38 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 44.2 | 19.9 | 32.0 | 29.5 | 21| 73| 33| 0|.........| 0| 0.00| 0.0| 30.19| 30.00|30.093| 1.0| 0.9|277| 13|WSW| 6|296| 51 | |12| | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | |14| | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | |17| | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | |20| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | |23| | | | | | | | | | | | | | | | | | | | | | | | |24| | | | | | | | | | | | | | | | | | | | | | | | |25| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |26| | | | | | | | | | | | | | | | | | | | | | | | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |31| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | 483.6| 314.4|------|------|---|----| 313| 0| Days | 0.41| 0.0| 30.57| 29.59|30.122| 1.8| 1.0|301| 24| W| 10|289| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 44.0| 28.6| 36.3 | 36.5 | 28|73.6|----|----|≥.01 Inch 2|62.79| 1.0| 8 | 2 |------|----|----|---| 3 | 3 | 40| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 |1208|1660|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 0.41| 1- 2| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 9 | 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/m² 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 December 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 1 | DEC 2 | DEC 3 | | | | | |00| 0|30.13| 0.00| 40| 35| 83|00| 1| 2| 0|29.90| 0.04| 42| 41| 94|07| 1| 3| 0|29.60| 0.00| 58| 56| 93|22| 2| 4| |03| 0|30.15| 0.00| 34| 31| 88|03| 0| 0| 0|29.82| 0.00| 45| 43| 94|08| 0| 0| 0|29.62| 0.00| 53| 51| 94|19| 0| 5| |06| 0|30.17| 0.00| 30| 28| 91|12| 2| 2| 0|29.75| 0.00| 46| 45| 95|18| 0| 4| 0|29.66| 0.00| 51| 50| 94|26| 2| 4| |09| 90|30.18| 0.00| 35| 33| 93|12| 1| 1| 69|29.72| 0.00| 47| 46| 95|07| 0| 1| 67|29.73| 0.00| 51| 45| 79|27| 2| 8| |12| 70|30.17| 0.00| 41| 35| 79|05| 1| 4| 84|29.69| 0.00| 52| 51| 95|21| 3| 11| 464|29.72| 0.00| 58| 42| 54|29| 5| 20| |15| 12|30.12| 0.00| 39| 36| 90|00| 0| 3| 33|29.62| 0.00| 55| 53| 94|17| 1| 5| 35|29.72| 0.00| 55| 41| 59|32| 3| 14| |18| 0|30.08| 0.00| 41| 39| 93|04| 1| 3| 0|29.60| 0.00| 56| 54| 94|18| 3| 9| 0|29.79| 0.00| 50| 38| 64|29| 6| 11| |21| 0|30.03| 0.00| 41| 39| 93|06| 1| 5| 0|29.61| 0.00| 58| 56| 93|24| 1| 6| 0|29.82| 0.00| 46| 35| 64|29| 2| 8| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 4 | DEC 5 | DEC 6 | | | | | |00| 0|29.84| 0.00| 45| 35| 68|29| 3| 11| 0|30.08| 0.00| 28| 24| 86|28| 1| 2| 0|30.21| 0.00| 29| 24| 84|27| 1| 3| |03| 0|29.89| 0.00| 42| 33| 71|30| 3| 12| 0|30.07| 0.00| 29| 24| 83|03| 1| 4| 0|30.24| 0.00| 25| 22| 88|23| 0| 2| |06| 0|29.96| 0.00| 39| 29| 69|30| 2| 9| 0|30.06| 0.00| 30| 24| 76|02| 2| 4| 0|30.27| 0.00| 30| 24| 79|25| 0| 4| |09| 39|30.02| 0.00| 41| 29| 62|34| 4| 10| 70|30.08| 0.00| 31| 24| 73|00| 2| 3| 90|30.31| 0.00| 34| 26| 75|26| 2| 6| |12| 149|30.02| 0.00| 42| 26| 53|31| 4| 14| 181|30.06| 0.00| 36| 22| 57|27| 4| 8| 540|30.27| 0.00| 41| 26| 55|28| 3| 16| |15| 46|30.01| 0.00| 41| 28| 60|32| 5| 10| 105|30.05| 0.00| 37| 22| 54|29| 3| 12| 79|30.23| 0.00| 42| 25| 52|26| 2| 6| |18| 0|30.03| 0.00| 35| 26| 70|28| 1| 3| 0|30.12| 0.00| 32| 22| 68|30| 1| 2| 0|30.22| 0.00| 39| 26| 58|23| 2| 10| |21| 0|30.08| 0.00| 30| 25| 83|28| 0| 2| 0|30.17| 0.00| 27| 22| 81|30| 0| 1| 0|30.21| 0.00| 38| 26| 60|17| 3| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 7 | DEC 8 | DEC 9 | | | | | |00| 0|30.21| 0.00| 37| 27| 66|25| 2| 5| 0|30.45| 0.00| 27| 20| 74|05| 1| 2| 0|30.56| 0.00| 32| 21| 63|29| 2| 8| |03| 0|30.25| 0.00| 30| 24| 81|24| 0| 2| 0|30.48| 0.00| 23| 19| 84|06| 0| 0| 0|30.50| 0.00| 31| 21| 66|06| 2| 6| |06| 0|30.32| 0.00| 29| 25| 85|30| 2| 7| 0|30.50| 0.00| 20| 17| 87|06| 0| 0| 0|30.48| 0.00| 29| 23| 76|05| 0| 1| |09| 25|30.41| 0.00| 36| 24| 63|32| 2| 5| 63|30.54| 0.00| 25| 21| 87|06| 0| 0| 44|30.45| 0.00| 31| 22| 70|05| 1| 3| |12| 436|30.40| 0.00| 42| 23| 47|28| 2| 10| 496|30.50| 0.00| 37| 21| 52|30| 4| 11| 74|30.37| 0.00| 32| 22| 65|04| 3| 7| |15| 26|30.39| 0.00| 40| 21| 46|28| 5| 14| 62|30.49| 0.00| 37| 19| 48|30| 3| 8| 25|30.28| 0.00| 33| 22| 65|33| 2| 7| |18| 0|30.43| 0.00| 35| 22| 58|26| 1| 4| 0|30.53| 0.00| 33| 20| 59|30| 2| 7| 0|30.26| 0.00| 33| 22| 64|05| 2| 8| |21| 0|30.45| 0.00| 33| 21| 61|05| 0| 4| 0|30.56| 0.00| 29| 22| 73|28| 2| 5| 0|30.18| 0.00| 32| 22| 66|03| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 10 | DEC 11 | DEC 12 | | | | | |00| 0|30.12| 0.00| 31| 21| 64|33| 3| 7| 0|30.18| 0.00| 24| 21| 87|26| 0| 2| 0|30.06| 0.00| 28| 24| 82|28| 1| 2| |03| 0|30.09| 0.00| 31| 20| 64|33| 3| 9| 0|30.18| 0.00| 22| 19| 89|27| 0| 0| | | | | | | | | | |06| 0|30.11| 0.00| 29| 20| 68|02| 1| 5| 0|30.17| 0.00| 20| 18| 90|27| 0| 0| | | | | | | | | | |09| 53|30.16| 0.00| 30| 22| 71|00| 5| 9| 26|30.17| 0.00| 24| 22| 91|26| 0| 1| | | | | | | | | | |12| 214|30.15| 0.00| 36| 25| 65|05| 2| 7| 427|30.10| 0.00| 41| 25| 53|30| 1| 6| | | | | | | | | | |15| 63|30.11| 0.00| 38| 26| 63|00| 2| 6| 26|30.01| 0.00| 42| 21| 43|27| 2| 8| | | | | | | | | | |18| 0|30.15| 0.00| 33| 25| 72|02| 1| 4| 0|30.00| 0.00| 30| 20| 65|29| 1| 2| | | | | | | | | | |21| 0|30.18| 0.00| 26| 22| 85|26| 0| 1| 0|30.01| 0.00| 29| 22| 76|27| 0| 2| | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 13 | DEC 14 | DEC 15 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 16 | DEC 17 | DEC 18 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.02 | 0.02 | 0.03 | 0.04 | 0.05 | 0.07 | 0.08 | 0.09 | 0.10 | 0.11 | 0.11 | 0.14 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 01 | 01 | 01 | 01 | 01 | 01 | 01 | 01 | 01 | 01 | 01 | 02 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1330 | 1303 | 1309 | 1339 | 1330 | 1339 | 1352 | 1359 | 1416 | 1437 | 1437 | 0208 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 December 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 19 | DEC 20 | DEC 21 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 22 | DEC 23 | DEC 24 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 25 | DEC 26 | DEC 27 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 28 | DEC 29 | DEC 30 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 31 | | | | | | | |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|30.112| 35| 29| 79| 1.5| 30 | 0.9| |03| 0|30.116| 33| 28| 82| 0.9| 35 | 0.6| |06| 0|30.130| 32| 27| 83| 1.0| 33 | 0.4| |09| 58|30.160| 35| 29| 78| 1.8| 34 | 1.2| |12| 285|30.132| 42| 29| 61| 3.1| 30 | 1.9| |15| 47|30.094| 42| 29| 61| 2.4| 30 | 2.1| |18| 0|30.111| 38| 29| 70| 1.8| 29 | 0.8| |21| 0|30.119| 35| 28| 76| 1.4| 32 | 0.2| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)December 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| | | | | | | | | | | | |0.01|0.08|0.02| | | |0.01| | |0.01|0.02|0.05|01 02|0.02|0.06|0.02|0.04|0.05|0.01| |0.01| | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |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 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.02|0.06|0.02|0.04|0.05|0.01|0.00|0.01|0.00|0.00|0.00|0.00|0.01|0.08|0.02|0.00|0.00|0.00|0.01|0.00|0.00|0.01|0.02|0.05|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.)