----------------------------------------------------------------------------- MONTHLY SUMMARY OF CLIMATOLOGICAL DATA - PORTSMOUTH, VIRGINIA Portsmouth Weather Records Service Portsmouth, Virginia 23702-2017 (3 miles south/West Cradock Section) 8:00 PM EDT, Wednesday, May 31, 1995 ----------------------------------------------------------------------------- Monthly summary of Local Climatological Data for Portsmouth, Virginia, West Cradock Section, during the month of May, 1995. Time is EDT. ----------------------------------------------------------------------------- D HT DN LT DN MT DN HDD CDD PREC WD WS SC WXR TYPE/REMARKS ----------------------------------------------------------------------------- 1 61 -15 51 -2 56.0 -8 9.0 N 18 PC COOLER 2 55 -19 49 -3 52.0 -11 13.0 1.11 N 20 C R L F BREEZY 3 68 -6 49 -4 58.5 -5 6.5 N 19 PC 4 75 +3 45 -5 61.5 -1 3.5 T SW 15 PC RW- (PM) 5 70 -2 57 3 63.5 +1 1.5 .02 N 22 PC FROPA RW- 6 72 -4 50 -4 61.0 -4 4.0 N 21 SU BREEZY 7 73 -2 46 -8 59.5 -5 5.5 NNW 17 SU DRY 8 68 -6 50 -4 59.0 -5 6.0 NNE 21 -PC PLEASANT 9 78 +4 47 -5 62.5 -1 2.5 .02 SE 13 PC RW- WARMFROPA 10 81 +5 61 +7 71.0 +6 6.0 .48 S 21 C RW DST LTG 11 86 +8 66 +11 76.0 +10 11.0 .06 SW 19 PC TRW-F- DST LTG RW(AFT) 12 73 -6 59 +2 66.0 -1 1.0 .14 N 19 PC RW F 13 81 +2 53 -4 67.0 -1 2.0 ESE 14 PC 14 68 -9 60 +1 64.0 -4 1.0 .94 SE 12 C F TRW RW+ 15 77 0 60 +2 68.5 +1 4.5 T ENE 18 PC F+(AM) RW- 16 78 0 54 -2 66.0 -1 1.0 SE 18 PC GF(AM) 17 85 +7 64 +6 74.5 +7 9.5 S 26 PC H- DST LTG BREEZY 18 91 +11 71 +13 81.0 +12 16.0 SSW 23 PC H- BREEZY HOT HUMID 19 81 +3 59 +1 70.0 +2 5.0 1.06 SW 35 PC H- BREEZY RW TRW A FROP 20 81 +6 53 -6 67.0 0 2.0 NW 14 SU PLEASANT 21 84 +6 57 -2 70.5 +2 5.5 SW 17 PC PLEASANT 22 79 +1 58 0 68.5 0 3.5 NE 17 SU FROPA 23 82 0 54 -6 68.0 -3 3.0 SSW 10 SU GF (AM) 24 88 +7 57 -5 72.5 +1 7.5 S 15 SU WARM (AFT) 25 90 +10 64 +3 77.0 +7 12.0 SSW 16 PC WARM H- DST LTG 26 78 0 64 +3 71.0 +1 6.0 .20 N 15 PC TRW FROPA H 27 72 -5 61 +2 66.5 -2 1.5 ENE 16 C BREEZY COOLER 28 72 -7 59 -1 65.5 -4 0.5 .10 SE 9 PC RW F- 29 88 +5 63 +1 75.5 +3 10.5 SW 20 PC WARM FROPA HUMID 30 81 -1 66 +3 73.5 +1 8.5 N 18 PC FROPA 31 81 -4 59 -5 70.0 -4 5.0 NNE 12 -PC ----------------------------------------------------------------------------- SUMMARY OF MAY 1995: TEMPERATURE: Monthly mean: High = 77.3 Low = 57.1 Mean = 67.2 Departure < Normal: High = -0.2 Low = -0.2 Mean = -0.2 Degree Days: Heating = 52.5 Cooling = 121.5 Number of Days Using: Heating = 10 Cooling = 21 Days with maximum temperature >= 90: 2 Days with maximum temperature <= 32: 0 Days with minimum temperature <= 32: 0 Days with minimum temperature <= 0: 0 PRECIPITATION: Total month = 4.13" Departure < Normal = +0.02" Normal month = 4.11" or 101% Average daily = 0.13" Normal daily = 0.13" Number of days with measurable precipitation = 10 Maximum for May = 8.06" in 1988 --> (Since Minimum for May = 1.02" in 1986 --> 1976) Number of days with 0.01" or more: 10 Snowfall Number of days with 0.10" or more: 7 May total = 0.00" Number of days with 0.50" or more: 3 May maximum = 0.00" Number of days with 1.00" or more: 2 DAILY EXTREMES: Low temperature = 46 on the 7th High temperature = 91 on the 18th Maximum daily precipitation = 1.11" on the 2nd Maximum 24-hour rainfall = 1.11" on the 2nd Maximum wind gust = SW 35 mph on the 19th NUMBER OF: Days Cloudy: 4 Days with thunderstorms: 4 Days Partly Cloudy: 21 Thunderstorms: 4 Days Clear/Sunny: 6 Days with some type of snowfall: 0 Days with Fog/Ground fog: 8 --------------------------------------------------------------------------- YEARLY-TOTALS-TO-DATE Temperatures Degree Days Precipitation Mean maximum: 62.9 (+1.7) Heating: 1944.0 Aqueous: 15.28" (DEP -4.00") Mean minimum: 43.7 (+1.9) Cooling: 179.0 Maximum monthly: 4.13"/MAY Mean monthly: 53.5 (+1.8) Minimum monthly: 2.26"/JAN. Highest: 92, April 19th Snowfall: 0.20" Lowest: 13, February 6th and 7th Maximum daily: 0.20"/FEB. 8 Days with maximum temperature >= 90: 03 Maximum monthly: 0.20"/FEB. Days with maximum temperature <= 32: 02 Days with minimum temperature <= 32: 25 Days with some type of Days with temperature <= 0: 00 snowfall: 5 Days with measurable Number of: precipitation: 44 or 29% Days using Heating: 116 Days using Cooling: 33 Days with thunderstorms: 8 Days Cloudy: 25 Number of thunderstorms: 10 Days Partly Cloudy: 97 Days Clear/Sunny: 29 Greatest 24-hour period Days with fog/ground fog: 48 rainfall: 2.23"/Feb. 15-16 Wind (Highest Recorded Wind Gust): South-southwest 46 miles per hour, JAN. 6 Barometer: Highest 30.60" on March 10th; Lowest: 29.33" on February 4th ---------------------------------------------------------------------------- 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 mea- surements are in inches. All wind speeds are in miles per hour. -----------------------------------------------------------------------------