SAT MAR 01, 1997 9:15 AM EST ------------------------------------------------------------------- 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 1997. Time is EST. ------------------------------------------------------------------------ D HT DN LT DN MT DN HDD CDD PREC WD WS SC WXR TYPE/REMARKS ------------------------------------------------------------------------ 1 62 +11 39 +9 50.5 +10 14.5 SSW26 PC BR (AM) MILD (AFT) 2 53 +2 41 +7 47.0 +5 18.0 NE 15 PC FROPA COOLER 3 61 +10 42 +10 51.5 +10 13.5 NNE20 PC BR 4 52 +2 42 +10 47.0 +6 18.0 0.02 E 21 C BR -SHRA 5 60 +15 44 +15 52.0 +15 13.0 0.25 SSW21 C BR FG TSRA SHRA FROP 6 49 +5 39 +11 44.0 +8 21.0 NW 22 PC -BR 7 51 +6 40 +12 45.5 +9 19.5 T ENE14 PC -BR -SHRA 8 45 -1 33 +4 39.0 +2 26.0 0.85 N 30 C BR RA DZ -SHSN FROPA 9 35 -13 30 +2 32.5 -5 32.5 T NNW24 C BR -SHSN 10 42 -6 29 +1 35.5 -3 29.5 0.10 N 16 PC BR FR -RA -SN FROPA 11 39 -12 31 0 35.0 -6 30.0 N 27 PC -BR -FR(PM) 12 51 +4 30 +1 40.5 +2 24.5 WSW23 PC FR(AM) HZ FROPA 13 42 -4 34 +5 38.0 +1 27.0 0.14 NNW28 C -SN RA PE COLDER ACCUMULATION: TRACE 14 53 0 40 +7 46.5 +3 18.5 0.92 ESE27 C RA BR FROPA 15 47 -6 39 +4 43.0 -1 22.0 0.36 NNW19 PC -RA BR FROPA 16 48 -3 33 -1 40.5 -2 24.5 SSE21 SU 17 41 -9 32 0 36.5 -5 28.5 NNW30 SU FROPA COLD 18 61 +10 30 -3 45.5 +4 19.5 SW 26 SU COLD 19 70 +15 51 +15 60.5 +15 4.5 SW 34 SU BREEZY MILD 20 60 +5 46 +9 53.0 +7 12.0 N 19 -PC FROPA COOLER 21 72 +13 46 +10 59.0 +11 6.0 0.01 S 37 PC -BR WARMFROPA -SHRA 22 73 +13 48 +10 60.5 +11 4.5 0.01 SW 36 PC -SHRA COLDFROPA 23 50 -9 37 -4 43.5 -6 21.5 NNW19 -PC COLDER 24 58 +2 34 -4 46.0 -1 19.0 WNW21 SU -FR(AM) FROPA LATE EVE 25 47 -4 35 +1 41.0 -2 24.0 ESE21 PC COLDER 26 64 +14 34 0 49.0 +7 16.0 0.01 SSE25 PC -FR -SHRA -DZ BR 27 81 +28 62 +27 71.5 +28 6.5 0.01 SSW49 PC -BR -SHRA 28 71 +17 48 +13 59.5 +15 5.5 0.49 NNW18 PC BR SHRA FROPA -------------------------------------------------------------------------- SUMMARY OF FEBRUARY 1997: TEMPERATURE: Monthly mean: High = 54.9 Low = 38.9 Mean = 46.9 Departure < Normal: High = + 3.7 Low = + 6.1 Mean = + 4.9 Degree Days: Heating = 513.0 Cooling = 6.5 Number of Days Using: Heating = 27 Cooling = 1 Days with maximum temperature >= 90: 0 Days with maximum temperature <= 32: 0 Days with minimum temperature <= 32: 6 Days with minimum temperature <= 0: 0 PRECIPITATION: Total month = 3.17" Departure < Normal = -0.19" Normal month (to date) 3.36" or 94% Average daily = 0.11" Normal daily = 0.12" Number of days with measurable precipitation = 12 Year-to-date = 5.72" Departure = - 1.71" or 77% of normal Maximum for February = 6.32" in 1989 --> (Since Minimum for February = 1.20" in 1991 --> 1976) Number of days with 0.01" or more: 12 Snowfall Number of days with 0.10" or more: 7 February total = TRACE Number of days with 0.50" or more: 2 February max = 21.00" Number of days with 1.00" or more: 0 in 1989 DAILY EXTREMES: Low temperature = 29 on the 10th High temperature = 81 on the 27th Maximum daily precipitation = 0.92" on the 14th Maximum 24-hour rainfall = 1.01" on the 13th (7PM) - 14th (7PM) Maximum wind gust = SSW 49 mph on the 27th Maximum barometric pressure = 30.670" on the 17th Minimum barometric pressure = 29.779" on the 1st NUMBER OF: Days Cloudy: 6 Days with thunderstorms: 1 Days Partly Cloudy: 17 # of Thunderstorms: 1 Days Clear/Sunny: 5 Days with some type of snowfall: 4 Days with Fog/Ground Fog:16 Days with Dense Fog: 1 Days with Frost: 5 ------------------------------------------------------------------ YEAR-TO-DATE: (through February 28th, 1997) Temperatures Degree Days Precipitation Mean maximum: 51.6 (+2.2) Heating: Aqueous: 5.72" (DEP - 1.71") Mean minimum: 35.9 (+4.1) 1259.0 Maximum monthly: 3.17"/FEB. Mean monthly: 43.8 (+3.2) Cooling: Minimum monthly: 2.55"/JAN. 6.5 Highest: 81, February 27 Snowfall: 0.10" Lowest: 13, January 19 Maximum daily: 0.10"/JAN.11 Days with max temperature >= 90: 0 Maximum monthly: 0.10"/JAN. Days with max temperature <= 32: 2 Seasonal total: 0.10" Days with min temperature <= 32: 20 Days with some type of Days with temperature <= 0: 0 snowfall: 5 Days with measurable Number of: precipitation: 21 or 35.6% Days using Heating: 58 Days using Cooling: 1 Days with thunderstorms: 2 Days Cloudy: 10 Number of thunderstorms: 2 Days Partly Cloudy: 35 Days Clear/Sunny: 14 Greatest 24-hour period Days with fog/ground fog: 27 rainfall: 1.91"/JAN. 16th Wind (Highest Gust): SSW 49 miles per hour, February 27th Barometer: Highest 30.670" on February 17th Lowest: 29.466" on January 8th ------------------------------------------------------------------ METAR DENOTATIONS: BC Patches BL Blowing BR Fog with visibilites > 5/8 but <=6 statute miles and below to 5/8 mile DU Dust (widespread) DS Duststorm DZ Drizzle FC Funnel Cloud FG Fog with visibility <= 5/8 statute miles FU Smoke FZDZ Freezing drizzle FZRA Freezing rain FZFG Freezing fog GR Hail GS Small hail HZ Haze IC Ice crystals PE Ice pellets PY Spray RA Rain SA Sand SS Sandstorm PO Sand or dust whirls SG Snow granules SH Shower SHRA Shower of rain SHSN Shower of snow SHPE Shower of ice pellets SHGR Shower with hail SHGS Shower with small hail SM Statute miles SN Snow SQ Squalls TC+ Tornado/waterspout TS Thunderstorm TSGR Thunderstorm with hail TSGS Thunderstorm with small hail TSPE Thunderstorm with ice pellets TSRA Thunderstorm with rain TSSN Thunderstorm with snow UP Unknown precipitation VA Volcanic ash VC Vicinity VV Used for obscurred sky METAR Qualifiers: (now placed in FRONT of code) - Light + Heavy DR Low drifting M Below (as in -x.x degrees) MI Shallow PR Partial ------------------------------------------------------------------ PWRS DENOTATIONS: CL = Clear sky; PC = Partly cloudy sky; C = cloudy sky; NA, not available; NR, not recorded; TEMP, temperature; MAX, maximum; MIN, minimum; T, trace of precipitation; INOP, inoperative 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; AFT afternoon hours; EVE evening hours; PM 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 LB Low Barometer Reading (Inches) SC Dominant Daily Sky Cover HDD Heating Degree Days WXR TYPES Observed Weather CDD Cooling Degree Days Conditions and Remarks ------------------------------------------------------------------ NOTES: All temperatures are in degrees fahrenheit. All precipita- tion measurements are in inches. All wind speeds are in miles per hour. ------------------------------------------------------------------