MONTHLY SUMMARY OF CLIMATOLOGICAL DATA - PORTSMOUTH, VIRGINIA Portsmouth Weather Records Service Portsmouth, Virginia 23702-2017 (3 miles south/West Cradock Section) 12:30 PM EST, Saturday, April 2, 1994 Monthly summary of Local Climatological Data for Portsmouth, Virginia West Cradock Section, during the month of March, 1994. Time is EST. ---------------------------------------------------------------------------- D HT DN LT DN MT DN HDD CDD PREC WD WS HB LB SC WXR TYPE/REMARKS ---------------------------------------------------------------------------- 1 46 -6 34 1 40.0 -2 25.0 .55 NE 17 041 018 C R-S-IP-F 2 61 5 38 2 49.5 3 15.5 3.14 ESE 28 018 912 C R F RW T 3 45 -10 35 -2 40.0 -6 25.0 .07 SW 26 957 919 C F FROPA RW-L-SW- TRACE OF S 4 66 8 38 0 52.0 4 13.0 W 25 963 939 SU BREEZY FROPA 5 61 2 34 -7 47.5 -2 17.5 NNW 20 009 964 PC 6 57 2 39 1 48.0 1 17.0 SE 14 030 009 SU 7 77 21 40 4 58.5 12 6.5 SW 30 025 008 -PC MILD BREEZY 8 79 23 43 5 61.0 14 4.0 .44 N 28 023 996 PC MILD FROPA RW TRW 9 44 -13 42 5 43.0 -4 22.0 .24 NE 21 030 999 C RW L F COLDER 10 68 8 40 2 54.0 5 11.0 2.99 SW 23 999 974 C L-F FROPA RW+ TRW 11 49 -10 35 -2 42.0 -6 23.0 N 31 050 997 SU COOL 12 50 -8 34 -5 42.0 -7 23.0 NNE 15 061 048 SU COOL 13 61 -1 32 -9 46.5 -5 18.5 SW 18 048 007 PC COOL 14 57 -1 40 0 48.5 -1 16.5 .26 N 24 998 979 PC FROPA R- F 15 73 12 40 1 56.5 7 8.5 T SW 26 983 950 PC RW- MILD BREEZY 16 55 -3 35 -3 45.0 -3 20.0 NNW 35 979 952 PC FROPA WINDY COOL 17 47 -15 30 -8 38.5 -11 26.5 NNW 36 988 978 SU WINDY COLD (AM) 18 65 6 35 -5 50.0 0 15.0 .15 W 50 988 931 PC WINDY RW FROPA T 19 57 -1 41 1 49.0 0 16.0 WNW 26 984 947 SU BREEZY COOL 20 65 6 33 -3 49.0 1 16.0 N 19 997 982 SU CHILLY 21 63 3 44 5 53.5 4 11.5 .50 SSW 19 000 960 C RW TRW 22 63 4 45 7 54.0 6 11.0 .23 NNW 26 994 962 PC T RW+ F FROPA 23 79 18 43 4 61.0 11 4.0 WSW 24 004 993 -PC MILDER 24 81 19 58 16 69.5 17 4.5 SW 23 997 985 PC WARM 25 68 8 49 8 58.5 8 6.5 .94 N 28 998 968 PC DSTLTG RW F FROPA 26 50 -10 38 -3 44.0 -7 21.0 N 20 023 998 PC CHILLY 27 73 8 42 0 57.5 4 7.5 .35 SW 26 011 972 PC R F FROPA 28 81 15 57 12 69.0 14 4.0 .28 SW 28 997 964 PC RW F R FROPA 29 58 -13 43 -3 50.5 -8 14.5 .52 N 28 023 981 PC R F RW FROPA 30 61 -7 40 -9 50.5 -8 14.5 .00 NNW 15 040 023 SU 31 59 -8 41 -5 50.0 -7 15.0 .30 SE 17 032 999 PC RW F FROPA ---------------------------------------------------------------------------- SUMMARY OF MARCH 1994: TEMPERATURE: Monthly mean: High = 61.9 Low = 39.9 Mean = 50.9 Departure < Normal: High = +2.0 Low = +0.4 Mean = +1.2 Degree Days: Heating = 445.0 Cooling = 8.5 Number of Days Using: Heating = 29 Cooling = 2 PRECIPITATION: Total month = 10.96" Normal month = 4.54" Departure < Normal = +6.42" or 242% Normal Average daily = 0.35" Normal daily = 0.15" Number of days with measurable precipitation = 15 Maximum for March = 10.96" in 1994 Minimum for March = 0.89" in 1986 Number of days with 0.01" or more: 15 Snowfall Number of days with 0.10" or more: 14 March total = TRACE Number of days with 0.50" or more: 6 March maximum = 14.00" in Number of days with 1.00" or more: 2 1980 DAILY EXTREMES: Low temperature = 30 on the 17th High temperature = 81 on the 24th and 28th Maximum daily precipitation = 3.14" on the 2nd Maximum 24-hour rainfall = 3.69" on the 1st/2nd Maximum wind gust = 50 mph from the West on the 18th High barometer = 30.48" on the 13th Low barometer = 29.12" on the 2nd Number of Days with thundershowers/ Days Cloudy: 6 storms: 6 Days Partly Cloudy: 17 Number of thundershowers/ Days Clear/Sunny: 8 storms: 5 Days with Fog/Ground fog: 12 Days with some type of snowfall: 2 --------------------------------------------------------------------------- YEARLY-TOTALS-TO-DATE Temperatures Degree Days Precipitation Mean maximum: 54.1 (+1.2) Heating: 1907.0 Aqueous: 19.86" (DN +7.73") Mean minimum: 33.7 (-1.5) Cooling: 8.5 Maximum monthly: 10.96"/MAR. Mean monthly: 43.9 (DN +0.3) Minimum monthly: 3.74"/FEB. Highest: 81, March 24th and 28th Snowfall: 8.00" Lowest: 5, January 19th Maximum daily: 2.00"/JAN.14 Days with maximum temperature >= 90: 00 Maximum monthly: 6.90"/JAN. Days with minimum temperature <= 32: 38 Days with some type of Days with temperature <= 0: 00 snowfall: 15 Days with measurable precipitation: 37 or 41% Number of Days with thundershowers/ Days Cloudy: 22 storms: 06 Days Partly Cloudy: 48 Number of thundershowers/ Days Clear/Sunny: 20 storms: 05 Days with fog/ground fog: 38 Greatest 24-hour period rainfall: 3.69"/March 1-2 Wind (Highest Recorded Wind Gust): Southwest 50 miles per hour, January 4th West 50 miles per hour, March 18th Barometer: Highest 30.80" on January 10th; Lowest: 29.12" on March 2nd ---------------------------------------------------------------------------- DENOTATIONS (Weather/sky conditions) Intensity Markings A Hail GF Ground fog RW Rainshower Precipitation: AP Small hail GL Glaze S Snow - Light B Blowing H Haze SG Snow granules + Heavy C Cloudy IP Ice pellets SP Snow pellets Sky Condition: CL Clear K Smoke SU Sunny -Thin or Partial D Dust L Drizzle TRW Thundershower Departures from F Fog LTG Lightning T Thunderstorm Norms: FR Frost PC Partly Cloudy X Obscurred Sky - below; + above R Rain Y Spray ZL Freezing drizzle ZR Freezing rain ----------------------------------------------------------------------------- OTHER DENOTATIONS: NA, not available; NR, not recorded; TEMP, temperature; MAX, maximum; MIN, minimum; T, trace of precipitation; INOP, inopera- tive equipment; MPH, miles per hour; DN, departure from normal; PREC., precipitation; YR, year; NORM, normal; DST (with LTG), distant lightning; CLDFROPA or CFP, cold frontal passage; AM morning; PM afternoon hours; EVE evening hours; E estimated ----------------------------------------------------------------------------- COLUMN DENOTATIONS: D Date PREC Precipitation HT High Temperature WS Maximum Wind Speed (Gust) LT Low Temperature WD Direction of Maximum Wind Gust MT Mean Temperature HB High Barometer Reading (Inches) DN Departure from Normal of High, LB Low Barometer Reading (Inches) Low or Mean Temperature SC Dominant Daily Sky Cover HDD Heating Degree Days WXR TYPES Observed Weather Conditions CDD Cooling Degree Days and Remarks VBL Variable wind directions ----------------------------------------------------------------------------- NOTES: All temperatures are in degrees fahrenheit. All precipitation mea- surements are in inches. All wind speeds are in miles per hour. -----------------------------------------------------------------------------