----------------------------------------------------------------------------- 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 June 1996. Time is EDT. ----------------------------------------------------------------------------- D HT DN LT DN MT DN HDD CDD PREC WD WS SC WXR TYPE/REMARKS ----------------------------------------------------------------------------- 1 78 -6 47 -17 62.5 -12 2.5 SSE21 SU RECORD AM LOW TEMP 2 80 -3 51 -12 65.5 -8 0.5 SE 21 SU 3 68 -14 57 -6 62.5 -10 2.5 0.25 NNE23 PC RW F 4 81 0 57 -7 69.0 -3 4.0 S 27 PC DST LTG F 5 81 -1 66 +3 73.5 +1 8.5 T WSW21 PC TRW- F FROPA H- 6 84 +1 65 +1 74.5 +1 9.5 ESE21 PC F+(AM) 7 90 +6 67 +1 78.5 +3 13.5 T S 24 PC F+L-(AM) H- 8 90 +3 70 +4 80.0 +3 15.0 S 28 SU BREEZY (AFT) HOT 9 86 +2 70 +4 78.0 +3 13.0 0.22 S 30 PC RW DST LTG BREEZY(AM) 10 82 -2 72 +6 77.0 +2 12.0 0.04 S 26 PC F- RW HUMID 11 82 -1 67 +4 74.5 +1 9.5 0.51 W 23 PC F- RW+ TRW DST LTG HUMID 12 89 +4 67 +3 78.0 +4 13.0 0.38 S 27 PC TRW(2) F- H RW 13 87 +4 66 +2 76.5 +3 11.5 T W 25 PC RW-(AM) F- H- 14 90 +5 68 +4 79.0 +4 14.0 W 16 SU F-(AM) H 15 90 +3 69 +3 79.5 +3 14.5 T SE 25 PC F-(AM) H TRW- DST LTG 16 93 +7 70 +2 81.5 +5 16.5 S 22 PC F-(AM) H DST LTG 17 90 +5 69 +2 79.5 +4 14.5 SSW24 PC 18 94 +8 71 +4 82.5 +6 17.5 S/E19 PC HOT HUMID H 19 91 +5 71 +3 81.0 +4 16.0 S 23 PC HOT HUMID 20 92 +5 71 +2 81.5 +4 16.5 0.14 ESE21 PC H DST LTG TRW 21 88 +2 70 +4 79.0 +3 14.0 T N 21 SU RW-(AM) H DST LTG 22 94 +8 69 +2 81.5 +5 16.5 SW 20 SU H 23 87 +1 75 +8 81.0 +4 16.0 21NNE PC H 24 94 +9 69 +3 81.5 +6 16.5 1.80 28 N PC H HOT TRW(3) 25 88 +4 69 +3 78.5 +3 13.5 0.15 18 SW PC H F- TRW- FROPA 26 79 -6 65 -2 72.0 -4 7.0 29NNE SU PLEASANT 27 82 -5 60 -8 71.0 -6 6.0 16NNE SU 28 86 -2 63 -4 74.5 -3 9.5 17NNW SU H- WEAK FROPA 29 81 -7 67 -1 74.0 -4 9.0 20ENE C FROPA (AM) 30 77 -10 59 -9 68.0 -10 3.0 0.36 RW (AM) ----------------------------------------------------------------------------- SUMMARY OF JUNE 1996: TEMPERATURE: Monthly mean: High = 85.8 Low = 65.9 Mean = 75.9 Departure < Normal: High = + 0.8 Low = 0.0 Mean = + 0.5 Degree Days: Heating = 5.0 Cooling = 330.5 Number of Days Using: Heating = 2 Cooling = 28 Days with maximum temperature >= 90: 11 Days with maximum temperature <= 32: 0 Days with minimum temperature <= 32: 0 Days with minimum temperature <= 0: 0 PRECIPITATION: Total month = 3.85" Departure < Normal = + 0.20" Normal month (to date) 3.65" or 105% Average daily = 0.13" Normal daily = 0.12" Number of days with measurable precipitation = 9 Year-to-date = 25.10" Departure = +1.80" 108% of normal Maximum for June = 7.56" in 1978 --> (Since Minimum for June = 0.94" in 1980 --> 1977) Number of days with 0.01" or more: 9 Snowfall Number of days with 0.10" or more: 8 June total = 0.00" Number of days with 0.50" or more: 2 June maximum = 0.00" Number of days with 1.00" or more: 1 DAILY EXTREMES: Low temperature = 47 on the 1st High temperature = 94 on the 18th, 22nd, 24th Maximum daily precipitation = 1.80" on the 24th Maximum 24-hour rainfall = 1.95" on the 24th-25th Maximum wind gust = S 30 mph on the 9th Maximum barometric pressure = 30.344" on the 1st Minimum barometric pressure = 29.690" on the 23rd NUMBER OF: Days Cloudy: 2 Days with thunderstorms: 7 Days Partly Cloudy: 19 # of Thunderstorms: 10 Days Clear/Sunny: 9 Days with some type of snowfall: 0 Days with Fog/Ground Fog: 13 Days with Dense Fog: 2 ---------------------------------------------------------------------------- YEAR-TO-DATE: Temperatures Degree Days Precipitation Mean maximum: 64.3 (-0.8) Heating: 2389.5 Aqueous: 25.10" (DEP +1.80") Mean minimum: 45.2 (-0.5) Cooling: 525.0 Maximum monthly: 5.60"/JAN. Mean monthly: 54.8 (-0.6) Minimum monthly: 2.65"/FEB. Highest: 98, May 20th Snowfall: 15.90" Lowest: 8, February 5th Maximum daily: 4.50"/JAN. 6 Days with maximum temperature >= 90: 15 Maximum monthly: 8.00"/FEB. Days with maximum temperature <= 32: 9 Seasonal total: 16.20" Days with minimum temperature <= 32: 45 Days with some type of Days with temperature <= 0: 0 snowfall: 15 Days with measurable Number of: precipitation: 73 or 40% Days using Heating: 126 Days using Cooling: 56 Days with thunderstorms: 16 Days Cloudy: 37 Number of thunderstorms: 20 Days Partly Cloudy: 114 Days Clear/Sunny: 31 Greatest 24-hour period Days with fog/ground fog: 55 rainfall: 1.95"/June 24-25th Wind (Highest Recorded Wind Gust): SSW 64 miles per hour, JAN. 19 Barometer: Highest 30.937" on March 10th; Lowest: 29.196" on March 19th --------------------------------------------------------------------------- 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. -----------------------------------------------------------------------------