----------------------------------------------------------------------------- MONTHLY SUMMARY OF CLIMATOLOGICAL DATA - PORTSMOUTH, VIRGINIA Portsmouth Weather Records Service Portsmouth, Virginia 23702-2017 (3 miles south / West Cradock Section) ----------------------------------------------------------------------------- Monthly summary of Local Climatological Data for Portsmouth, Virginia, West Cradock Section, during the month of February 1996. Time is EST. ----------------------------------------------------------------------------- D HT DN LT DN MT DN HDD CDD PREC WD WS SC WXR TYPE/REMARKS ----------------------------------------------------------------------------- 1 34 -16 27 -3 30.5 -10 34.5 NE 23 C COLD 2 35 -16 27 -6 31.0 -11 34.0 0.60 INOP C F ZR GL TRW ZL ACCUMULATION: 0.5" 3 28 -23 22 -9 25.0 -16 40.0 0.10 INOP C ZL IP+ S SW- FROPA ACCUMULATION: 1.0" 4 23 -27 12 -19 17.5 -23 47.5 0.25 INOP PC S SW COLD ACCUMULATION: 2.5" 5 23 -21 8 -20 15.5 -21 49.5 INOP PC COLD 6 31 -13 11 -17 21.0 -15 44.0 INOP PC F-K-FR(AM) 7 39 -5 13 -15 26.0 -10 39.0 S 19 PC F-FR(AM) THAWING 8 54 +8 35 +6 44.5 +7 20.5 0.22 SW 26 C RW 9 60 +11 35 +7 47.5 +9 17.5 0.01 WNW25 PC RW F FROPA 10 61 +13 29 +1 45.0 +7 20.0 SSW24 SU FR (AM) 11 71 +20 44 +13 57.5 +17 7.5 WNW37 PC WINDY FROPA 12 44 -3 30 +1 37.0 -1 28.0 WNW23 PC FROPA VIRGA BREEZY 13 38 -8 22 -7 30.0 -7 35.0 W 31 SU WINDY COLD 14 51 -2 35 +2 43.0 0 22.0 SW 30 PC WARMFROPA BREEZY 15 51 -3 37 +3 44.0 0 21.0 0.04 ENE22 PC RW-(AM) 16 38 -14 26 -8 32.0 -11 33.0 0.52 NNW36 C R IP S S+ BS FROPA ACCUMULATION: 4.0" 17 35 -15 19 -13 27.0 -14 38.0 T NW 30 PC S-(AM) COLD ACCUMULATION: TRACE 18 40 -10 26 -7 33.0 -9 32.0 NNW21 PC FROPA BREEZY 19 56 +2 27 -8 41.5 -3 23.5 SE 26 PC FR(AM) 20 68 +13 46 +10 57.0 +11 8.0 0.68 SSE32 PC F+(AM) RW F 21 64 +6 49 +13 56.5 +10 8.5 0.10 SSE21 PC RW F+(AM) 22 68 +8 49 +11 58.5 +10 6.5 0.13 SE 16 PC F+(AM) RW 23 56 -3 50 +9 53.0 +3 12.0 SE 17 C RW (AM) F 24 68 +12 48 +10 58.0 +11 7.0 NW 36 PC FROPA DRYING 25 70 +19 39 +5 54.5 +12 10.5 WNW26 PC 26 73 +24 51 +17 62.0 +20 3.0 NNE17 PC FROPA 27 72 +22 43 +11 57.5 +16 7.5 S 18 PC GF K (AM) WARM FROPA(PM) 28 74 +21 51 +17 62.5 +19 2.5 W 29 PC GF H (AM) K(AFT) FROPA 29 51 +2 30 +2 40.5 +2 24.5 N 28 PC PC ----------------------------------------------------------------------------- SUMMARY OF FEBRUARY 1996: TEMPERATURE: Monthly mean: High = 50.9 Low = 32.4 Mean = 41.7 Departure < Normal: High = 0.0 Low = 0.0 Mean = 0.0 Degree Days: Heating = 676.5 Cooling = 0.0 Number of Days Using: Heating = 29 Cooling = 0 Days with maximum temperature >= 90: 0 Days with maximum temperature <= 32: 4 Days with minimum temperature <= 32: 15 Days with minimum temperature <= 0: 0 PRECIPITATION: Total month = 2.65" Departure < Normal = -0.72" Normal month = 3.37" or 79% Average daily = 0.09" Normal daily = 0.12" Number of days with measurable precipitation = 10 Year-to-date = 8.25" Departure = +0.73" 110% of normal Maximum for February = 6.32 in 1989 --> (Since Minimum for February = 1.20" in 1991 --> 1977) Number of days with 0.01" or more: 10 Snowfall Number of days with 0.10" or more: 8 February total = 8.00" Number of days with 0.50" or more: 3 February maximum = 21.00" Number of days with 1.00" or more: 0 in 1989 DAILY EXTREMES: Low temperature = 8 on the 5th High temperature = 74 on the 28th Maximum daily precipitation = 0.68" on the 20th Maximum 24-hour rainfall = 0.78" on the 20th-21st Maximum wind gust = WNW 37 mph on the 11th (anemometers inoperative [glazed over] on the 2nd-7th [AM]) Maximum barometric pressure = 30.658" on the 5th Minimum barometric pressure = 29.425" on the 11th NUMBER OF: Days Cloudy: 7 Days with thunderstorms: 1 Days Partly Cloudy: 21 Thunderstorms: 1 Days Clear/Sunny: 1 Days with some type of snowfall: 4 Days with Fog/Ground fog: 12 ---------------------------------------------------------------------------- YEAR-TO-DATE: Temperatures Degree Days Precipitation Mean maximum: 48.6 (-0.7) Heating: 1495.0 Aqueous: 8.25" (DEP +0.73") Mean minimum: 31.5 (-0.0) Cooling: 0.0 Maximum monthly: 5.60"/JAN. Mean monthly: 40.1 (-0.3) Minimum monthly: 2.65"/FEB. Highest: 74, February 28th Snowfall: 15.50" Lowest: 8, February 5th Maximum daily: 4.50"/JAN. 6 Days with maximum temperature >= 90: 0 Maximum monthly: 8.00"/FEB. Days with maximum temperature <= 32: 26 Days with minimum temperature <= 32: 14 Days with some type of Days with temperature <= 0: 0 snowfall: 13 Days with measurable Number of: precipitation: 26 or 43% Days using Heating: 60 Days using Cooling: 0 Days with thunderstorms: 3 Days Cloudy: 17 Number of thunderstorms: 3 Days Partly Cloudy: 38 Days Clear/Sunny: 5 Greatest 24-hour period Days with fog/ground fog: 27 rainfall: 1.69"/Jan. 6-7th Wind (Highest Recorded Wind Gust): SSW 64 miles per hour, JAN. 19 Barometer: Highest 30.658" on February 5th; Lowest: 29.38" on January 7th --------------------------------------------------------------------------- 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; DEP, departure; YR, year; NORM, normal; DST LTG, distant lightning; FROP or FROPA, frontal passage; AM morning; PM afternoon hours; EVE evening hours; E estimated; VBL, variable wind directions ----------------------------------------------------------------------------- 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 ----------------------------------------------------------------------------- NOTES: All temperatures are in degrees fahrenheit. All precipitation measurements are in inches. All wind speeds are in miles per hour. -----------------------------------------------------------------------------