LOCAL CLIMATOLOGICAL DATA Monthly Summary January 1998 Station: Baltimore 4SW Latitude: 39° 18' 40" N Longitude: 76° 46' 59" W Elevation (ground): 440 feet Time Zone: EASTERN +--+-----------------------------+----+---------+---------+--+-----------+------------------+-----------------------------+----+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind | Sun| | +-----+-----+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level+----+----+---+-------+-------+----+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +-----+-----+------+ Avg| Res|Res| Peak | Minute|Mean| | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | I | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | n | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | d | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | e | | 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 | x | | | | | | | | | | |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| 32 | 13*| 22.5*| 24.3 | 12| 62| 43| 0|.........| 0| 0.00| 0.0|30.51|30.19|30.371| 7.6| 6.6|229| 31| SW| 18|210| 31 | |02| 57 | 30 | 43.5 | 43.2 | 26| 52| 22| 0|.........| 0| 0.00| 0.0|30.31|30.19|30.255| 5.7| 5.6|226| 20|SSW| 12|210| 30 | |03| 61 | 36 | 48.5 | 48.8 | 32| 53| 17| 0|.........| 0| 0.00| 0.0|30.30|30.18|30.254| 4.7| 4.6|225| 23| SW| 13|210| 29 | |04| 68*| 42 | 55.0 | 53.6 | 42| 69| 10| 0|.........| 0| 0.00| 0.0|30.39|30.26|30.338| 2.6| 2.0|242| 14|WSW| 9|240| 29 | |05| 64 | 35 | 49.5 | 49.7 | 45| 86| 16| 0|.........| 0| 0.00| 0.0|30.39|30.22|30.316| 3.3| 2.6|166| 21|SSW| 13|210| 31 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 65 | 53 | 59.0 | 60.0 | 58| 95| 6| 0|.........| 0| 0.00| 0.0|30.23|30.09|30.151| 4.7| 4.6|200| 17| SW| 10|210| 29 | |07| 62 | 58 | 60.0 | 60.1 | 59| 99| 5| 0|.........| 0| 0.16| 0.0|30.10|29.82|29.984| 5.0| 4.9|142| 19| SE| 11|140| 21 | |08| 66 | 57 | 61.5*| 62.4 | 61| 98| 4| 0|.........| 0| 0.21| 0.0|29.83|29.54|29.663| 7.0| 6.0|173| 26| SW| 14|210| 17 | |09| 62 | 39 | 50.5 | 54.5 | 47| 78| 15| 0|.........| 0| 0.04| 0.0|29.99|29.56|29.700| 8.6| 5.5|250| 45|WNW| 28|260| 28 | |10| 49 | 29 | 39.0 | 39.0 | 31| 77| 26| 0|.........| 0| 0.00| 0.0|30.16|29.97|30.088| 3.4| 3.2|269| 22|WNW| 14|290| 31 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 48 | 26 | 37.0 | 35.0 | 28| 81| 28| 0|.........| 0| 0.00| 0.0|30.18|30.07|30.132| 2.7| 2.4|274| 17|WNW| 11|240| 31 | |12| 37 | 24 | 30.5 | 32.7 | 26| 80| 35| 0|...4.....| T| 0.00| T |30.32|30.16|30.254| 4.6| 3.6|119| 19|ESE| 12|110| 28 | |13| 54 | 29 | 41.5 | 40.0 | 33| 81| 24| 0|.........| 0| 0.02| 0.0|30.29|29.96|30.122| 6.4| 3.6|275| 29| W| 17|300| 28 | |14| 33 | 22 | 27.5 | 27.7 | 15| 61| 38| 0|.........| 0| 0.00| 0.0|30.48|30.27|30.375| 4.6| 2.9|328| 29| N| 18|330| 33 | |15| 40 | 25 | 32.5 | 32.5 | 29| 89| 33| 0|.........| 0| 0.91| 0.0|30.34|29.69|30.043| 6.0| 4.4| 64| 18| NE| 13| 50| 20 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 38 | 33 | 35.5 | 36.0 | 35| 99| 30| 0|...4.....| T| 0.02| 0.2|29.81|29.59|29.686| 7.3| 6.4| 17| 23| NE| 15| 40| 21 | |17| 43 | 29 | 36.0 | 36.6 | 34| 92| 29| 0|.........| 0| 0.10| 0.0|29.93|29.80|29.859| 3.7| 1.4|158| 17| NE| 10|140| 32 | |18| 40 | 28 | 34.0 | 33.8 | 28| 84| 31| 0|.........| 0| 0.00| 0.0|30.06|29.85|29.986| 3.6| 3.5|313| 25|WNW| 15|300| 31 | |19| 36 | 31 | 33.5 | 33.4 | 31| 92| 32| 0|...4.....| T| 0.01| T |30.04|29.90|29.975| 2.7| 2.2|111| 16|ESE| 10|120| 24 | |20| 37 | 27 | 32.0 | 31.4 | 24| 76| 33| 0|...4.....| T| 0.00| T |30.19|29.93|30.056| 6.9| 6.8|319| 32|NNW| 18|330| 35 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 36 | 21 | 28.5 | 29.6 | 21| 72| 37| 0|.........| 0| 0.00| 0.0|30.30|30.16|30.238| 3.8| 3.3|312| 16| NW| 10|290| 37 | |22| 36 | 22 | 29.0 | 30.8 | 26| 86| 36| 0|...4.....| T| 0.04| T |30.36|30.23|30.303| 5.2| 4.8|111| 23|ESE| 14|120| 34 | |23| 47 | 31 | 39.0 | 40.0 | 39| 99| 26| 0|...4.....| T| 1.51| T |30.31|29.83|30.013| 7.9| 5.1| 79| 31| SE| 17| 90| 25 | |24| 46 | 30 | 38.0 | 38.2 | 35| 92| 27| 0|...4.....| T| 0.21| T |29.88|29.71|29.798| 7.8| 7.7|329| 28|NNW| 17|330| 34 | |25| 38 | 28 | 33.0 | 32.8 | 24| 72| 32| 0|.........| 0| 0.00| 0.0|30.26|29.78|30.051| 8.9| 8.8|309| 43| W| 22|300| 37 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 41 | 22 | 31.5 | 32.1 | 25| 79| 34| 0|.........| 0| 0.00| 0.0|30.41|30.24|30.355| 2.5| 1.7|136| 14| SE| 9|140| 37 | |27| 41 | 27 | 34.0 | 35.5 | 33| 92| 31| 0|.........| 0| 0.28| 0.0|30.37|29.97|30.235| 8.3| 7.5| 69| 34| NE| 22| 50| 31 | |28| 37 | 31 | 34.0 | 34.4 | 32| 94| 31| 0|.........| 0| 1.64| 0.0|29.95|29.68|29.764|12.7|11.4| 22| 40|NNE| 23| 50| 23 | |29| 54 | 31 | 42.5 | 42.2 | 35| 78| 23| 0|.........| 0| 0.00| 0.0|29.89|29.70|29.803| 4.1| 1.7|263| 16| SW| 11|210| 35 | |30| 42 | 31 | 36.5 | 38.6 | 31| 74| 29| 0|.........| 0| 0.00| 0.0|29.89|29.68|29.788| 8.4| 8.3|309| 30|NNW| 18|320| 36 | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 40 | 25 | 32.5 | 34.1 | 26| 73| 33| 0|.........| 0| 0.00| 0.0|30.14|29.87|30.017| 6.8| 6.4|320| 27|NNW| 16|340| 36 | +--+-----+-----+------+------+---+----+----+----+---------+--+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | Sum| +-----+-----+------+------+---+----+----+----+ Number of +-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | 1450| 965|------|------|---|----| 816| 0| Days | 5.15| 0.2|30.51|29.54|30.064| 5.7| 1.1|301| 45|WNW| 28|260| 905| +-----+-----+------+------+---+----+----+----+------------+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date| Date|------|----|----|---| Date | Date | Avg| +-----+-----+------+------+---+----+----+----+ +-----+-----+-----+-----+------+----+----+---+-------+-------+----+ | 46.8| 31.1| 39.0 | 39.4 | 33|81.0|----|----|>.01 Inch 13| 5.15| 4.0| 1 | 8 |------|----|----|---| 9 | 9 | 30| +-----+-----+------+------+---+----+----+----+------------+-----+-----+-----+-----+------+----+----+---+-------+-------+----+ | | 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 |2776| 0|Thunder 0|Precipitation| Snow, Ice Plts | and Date | +-------+--------+--------+--------+----+----+------------+------+------+--------+-------+-------------+--------------------+ | > 90°F| < 32°F | < 32°F | < 0°F |----|----|Heavy Fog 0| 1.92| 27-28| 0.2 | 16 | T | 24+ | +-------+--------+--------+--------+----+----+------------+------+------+--------+----+--+-------------+--------------------+ | 0 | 0 | 23 | 0 |----|----|Clear 0 Partly Cloudy 0 Cloudy 0| +-------+--------+--------+--------+----+----+----------------------------------------+ NOTES: Units are: Temperature=°F, Wind=mph, Pressure=inches Hg, Precipitation=inches. Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations for 24 hours. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. 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: sunshine index is measured via solar cell and its value ranges from 0 (darkest) to 99 (brightest) 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 January 1998: Baltimore 4SW +--+---+-----+-----+---+---+---+----------+---+-----+-----+---+---+---+----------+---+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 1 | JAN 2 | JAN 3 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 4 | JAN 5 | JAN 6 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 7 | JAN 8 | JAN 9 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 10 | JAN 11 | JAN 12 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 13 | JAN 14 | JAN 15 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 16 | JAN 17 | JAN 18 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.03 | 0.05 | 0.07 | 0.08 | 0.12 | 0.17 | 0.22 | 0.28 | 0.34 | 0.39 | 0.49 | 0.57 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 15 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1730 | 1222 | 1151 | 1001 | 1151 | 1153 | 1215 | 1217 | 1222 | 1245 | 1222 | 1237 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 January 1998: Baltimore 4SW +--+---+-----+-----+---+---+---+----------+---+-----+-----+---+---+---+----------+---+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 19 | JAN 20 | JAN 21 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 22 | JAN 23 | JAN 24 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 25 | JAN 26 | JAN 27 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 28 | JAN 29 | JAN 30 | | | | | |01| | | | | | | | | | | | | | | | | | | | | | | | | | | | |04| | | | | | | | | | | | | | | | | | | | | | | | | | | | |07| | | | | | | | | | | | | | | | | | | | | | | | | | | | |10| | | | | | | | | | | | | | | | | | | | | | | | | | | | |13| | | | | | | | | | | | | | | | | | | | | | | | | | | | |16| | | | | | | | | | | | | | | | | | | | | | | | | | | | |19| | | | | | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | JAN 31 | | | | | | | |01| | | | | | | | | | | | |04| | | | | | | | | | | | |07| | | | | | | | | | | | |10| | | | | | | | | | | | |13| | | | | | | | | | | | |16| | | | | | | | | | | | |19| | | | | | | | | | | | |22| | | | | | | | | | | | +--+---+-----+-----+---+---+---+--+---+---+--------------------------------------+--------------------------------------+ WEATHER NOTES SUMMARY BY HOURS Percent Sunshine: Values range from 0 to 99 - indicates solar intensity. +--+----------------------------+---------+ 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 five 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 | +--+---+------+---+---+---+-----+----+----+ |01| 0| 0.000| 0| 0| 0| 0.0| 00 | 0.0| |04| 0| 0.000| 0| 0| 0| 0.0| 00 | 0.0| |07| 0| 0.000| 0| 0| 0| 0.0| 00 | 0.0| |10| 0| 0.000| 0| 0| 0| 0.0| 00 | 0.0| |13| 0| 0.000| 0| 0| 0| 0.0| 00 | 0.0| |16| 0| 0.000| 0| 0| 0| 0.0| 00 | 0.0| |19| 0| 0.000| 0| 0| 0| 0.0| 00 | 0.0| |22| 0| 0.000| 0| 0| 0| 0.0| 00 | 0.0| +--+---+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent) January 1998: Baltimore 4SW ---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | 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| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | |0.01|0.07|0.05|0.02|0.01| | | |07 08| | | | | | |0.01| | |0.05|0.05|0.05|0.02|0.01|0.02| | | | | | | | | |08 09| | | | | | | | | | | |0.04| | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | |0.01|0.01| | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | |0.06|0.06|0.06|0.06|0.11|0.15|0.13|0.10|0.06|0.05|0.05|0.02|15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | |0.01| | |0.01| | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | |0.01| |0.02|0.01|0.04|0.01|0.01|17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | |0.01| | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | |0.01|0.03|22 23|0.06|0.07|0.07|0.08|0.05|0.08|0.07|0.11|0.05|0.12|0.16|0.21|0.16|0.06|0.04|0.05|0.04|0.02| | | | |0.01| |23 24| | | | | | | | | | | | | | | | | |0.08|0.10| |0.02| |0.01| |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | |0.03|0.04|0.05|0.02|0.06|0.08|27 28|0.09|0.12|0.08|0.10|0.08|0.11|0.11|0.18|0.12|0.11|0.11|0.10|0.12|0.09|0.08|0.03|0.01| | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.15|0.19|0.16|0.18|0.13|0.20|0.19|0.30|0.18|0.28|0.32|0.40|0.36|0.22|0.20|0.14|0.17|0.33|0.31|0.18|0.16|0.11|0.15|0.14|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.)