----------------------------------------------------------------------------- MONTHLY SUMMARY OF CLIMATOLOGICAL DATA - PORTSMOUTH, VIRGINIA Portsmouth Weather Records Service Portsmouth, Virginia 23702-2017 (3 miles south/West Cradock Section) 11:30 PM EDT, Monday, May 1, 1995 ----------------------------------------------------------------------------- Monthly summary of Local Climatological Data for Portsmouth, Virginia, West Cradock Section, during the month of April, 1995. Time is EST/EDT. ----------------------------------------------------------------------------- D HT DN LT DN MT DN HDD CDD PREC HB LB WD WS SC WXR TYPE/REMARKS ----------------------------------------------------------------------------- 1 56 -11 41 -3 48.5 -7 16.5 006 995 NE 18 PC 2 59 -9 41 -3 50.0 -6 15.0 T 018 998 E 16 PC TROFPA RW- 3 69 3 34 -12 51.5 -5 13.5 032 013 S 19 SU FR- GF 4 77 9 50 2 63.5 6 1.5 013 973 SW 35 PC FROPA 5 57 -10 38 -9 47.9 -10 17.5 021 993 NE 22 SU COLDER 6 67 2 38 -7 52.5 -2 12.5 019 001 WSW17 PC GF (AM) 7 72 7 42 -1 57.0 3 8.0 999 992 N 15 SU FROPA GF- 8 85 19 50 4 67.5 11 2.5 001 983 WSW23 -PC WARM 9 86 20 60 13 73.0 17 8.0 992 975 WSW26 SU WARM 10 68 0 46 0 57.0 0 8.0 T 031 985 E 23 C FROPA(AM)COLDER R- 11 64 -5 47 2 55.5 -2 9.5 T 039 029 ENE16 PC RW- 12 80 9 53 8 66.5 8 1.5 .24 036 096 SW 25 PC RW 13 78 11 55 6 66.5 8 1.5 .62 996 968 SSW22 PC FROPA RW 14 61 -7 43 -6 52.0 -6 13.0 001 985 WNW21 PC COOLER 15 66 -3 41 -9 53.5 -6 11.5 007 991 NW 22 C 16 78 9 44 -5 61.0 2 4.0 NE 13 C 17 69 -1 52 3 60.5 1 4.5 .01 ENE15 PC RW-(PM) 18 72 3 51 4 61.5 3 3.5 .01 E 14 PC RW-(AM) 19 92 21 61 13 76.5 17 11.5 SSW22 PC HOT H WARMFROPA 20 75 5 64 15 69.5 10 4.5 NE 17 PC FROPA COOLER 21 88 17 59 8 73.5 12 8.5 SW 22 PC WARMFROPA F- 22 89 19 61 13 75.0 16 10.0 WSW30 PC WARMFROPA 23 64 -6 47 -2 55.5 -4 9.5 .26 N 30 C COOLER R- R 24 53 -21 47 -3 50.0 -12 15.0 .55 24 C RW F TRW(2) R L 25 72 -2 45 -6 58.5 -4 6.5 WNW16 PC 26 73 1 45 -6 59.0 -2 6.0 14 SU 27 82 6 47 -5 64.5 0 0.5 SW 20 PC F- (AM) 28 71 -1 59 6 65.0 2 NE 18 PC FROPA (AM) COOLER 29 75 2 51 0 63.0 1 2.0 SSW17 PC PLEASANT 30 82 8 54 2 68.0 5 3.0 .87 SW 28 PC RW- TRW FROPA ----------------------------------------------------------------------------- SUMMARY OF APRIL 1995: TEMPERATURE: Monthly mean: High = 72.7 Low = 48.9 Mean = 60.8 Departure < Normal: High = +3.1 Low = +0.8 Mean = +1.9 Degree Days: Heating = 178.0 Cooling = 51.0 Number of Days Using: Heating = 20 Cooling = 9 Days with maximum temperature >= 90: 1 Days with maximum temperature <= 32: 0 Days with minimum temperature <= 32: 0 Days with minimum temperature <= 0: 0 PRECIPITATION: Total month = 2.56" Normal month = 3.36" Departure < Normal = -0.80" or 76% Normal Average daily = 0.09" Normal daily = 0.11" Number of days with measurable precipitation = 7 Maximum for April = 7.08" in 1991 --> (Since Minimum for April = 1.21" in 1985 --> 1976) Number of days with 0.01" or more: 7 Snowfall Number of days with 0.10" or more: 5 April total = 0.00" Number of days with 0.50" or more: 3 April maximum = 1.10" Number of days with 1.00" or more: 0 in 1983 DAILY EXTREMES: Low temperature = 34 on the 3rd High temperature = 92 on the 19th Maximum daily precipitation = 0.87" on the 30th Maximum 24-hour rainfall = 0.87" on the 30th Maximum wind gust = 35 mph from the SW on the 4th High barometer = Not recorded Low barometer = Not recorded NUMBER OF: Days Cloudy: 5 Days with thunderstorms: 2 Days Partly Cloudy: 20 Thunderstorms: 4 Days Clear/Sunny: 5 Days with some type of snowfall: 0 Days with Fog/Ground fog: 6 --------------------------------------------------------------------------- YEARLY-TOTALS-TO-DATE Temperatures Degree Days Precipitation Mean maximum: 59.2 (+2.2) Heating: 1891.5 Aqueous: 11.15" (-4.03") Mean minimum: 40.2 (+2.4) Cooling: 57.5 Maximum monthly: 3.47"/FEB. Mean monthly: 49.7 (+2.3) 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: 01 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: 34 or 28% Days using Heating: 106 Days using Cooling: 12 Days with thunderstorms: 4 Days Cloudy: 21 Number of thunderstorms: 6 Days Partly Cloudy: 76 Days Clear/Sunny: 23 Greatest 24-hour period Days with fog/ground fog: 40 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; YR, year; NORM, normal; DSNT 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. -----------------------------------------------------------------------------