MON, JUN 30, 1997 9:00 PM EDT ------------------------------------------------------------------- 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 1997. Time is EDT. ------------------------------------------------------------------------ D HT DN LT DN MT DN HDD CDD PREC WD WS SC WXR TYPE/REMARKS ------------------------------------------------------------------------ 1 84 0 66 +2 75.0 +1 10.0 0.18 SSE21 PC BR SHRA DSTLTG 2 77 -6 62 -1 69.5 -3 4.5 T SSE14 C BR -SHRA FROPA 3 62 -19 55 -8 58.5 -13 6.5 0.15 NE 20 C BR DZ -RA CHILLY 4 61 -19 53 -10 57.0 -15 8.0 0.06 ENE23 PC BR -DZ -RA RECORD LOW 5 65 -17 51 -12 58.0 -14 7.0 ENE19 SU 6 67 -15 56 -8 61.5 -12 3.5 T ESE21 C -SHRA 7 61 -22 55 -10 58.0 -16 7.0 T E 20 C -DZ CHILLY 8 65 -21 53 -12 59.0 -17 6.0 ENE19 PC PLEASANT 9 70 -13 52 -14 61.0 -13 4.0 N 15 PC PLEASANT RECORD LOW 10 83 -1 51 -14 67.0 -7 2.0 NNW14 SU REC LO PLEASANT N 14 11 84 +1 59 -4 71.5 -1 6.5 WSW17 PC 12 86 +1 63 -1 74.5 0 9.5 0.05 SSW24 PC RW HUMID 13 85 +2 70 +5 77.5 +4 12.5 T SW 23 PC -RW WARM HUMID 14 84 -1 70 +6 77.0 -2 12.0 0.49 WSW25 PC HZ RW DSTLTG BR FROPA 15 73 -13 63 -3 68.0 -8 3.0 NNE17 SU PLEASANT 16 79 -6 57 -10 68.0 -8 3.0 ESE16 SU PLEASANT 17 90 +5 61 -6 75.5 0 10.5 SW 24 PC HZ HOT HUMID 18 93 +7 75 +8 84.0 +7 19.0 SSW24 PC -HZ HOT HUMID 19 85 -1 74 +6 79.5 +2 14.5 W 19 PC HUMID FROPA 20 91 +4 68 -1 79.5 +2 14.5 ESE20 PC -BR HZ HUMID 21 96 +9 71 +4 83.5 +7 18.5 S 20 SU HZ HOT HUMID 22 95 +8 73 +5 84.0 +7 19.0 S 20 SU HZ HOT HUMID 23 89 +3 72 +4 80.5 +4 15.5 NNE18 PC HZ FROPA WARM 24 95 +10 66 0 80.5 +5 15.5 SW 15 SU HOT 25 97 +12 72 +5 84.5 +9 19.5 WSW19 SU HZ HOT MORE HUMID 26 100 +14 74 +7 87.0 +11 22.0 0.19 N 27 PC HZ HOT MUGGY TRW FROPA TIED RECORD HI 27 84 -3 72 +4 78.0 +1 13.0 W/N17 PC NOT AS HOT 28 88 0 65 -2 76.5 -1 11.5 SE 19 PC DRY WARM 29 87 -1 63 -4 75.0 -3 10.0 ESE22 PC DRY WARM 30 86 -1 68 0 77.0 -1 12.0 ESE18 PC ------------------------------------------------------------------------ SUMMARY OF JUNE 1997: TEMPERATURE: Monthly mean: High = 82.1 Low = 63.7 Mean = 72.9 Departure < Normal: High = - 2.7 Low = - 2.1 Mean = - 2.4 Degree Days: Heating = 42.0 Cooling = 278.0 Number of Days Using: Heating = 7 Cooling = 23 Days with maximum temperature >= 90: 8 Days with maximum temperature <= 32: 0 Days with minimum temperature <= 32: 0 Days with minimum temperature <= 0: 0 PRECIPITATION: Total month = 1.12" Departure < Normal = - 2.41" Normal month (to date) 3.53" or 32% Average daily = 0.04" Normal daily = 0.12" Number of days with measurable precipitation = 6 Year-to-date = 14.83" Departure = - 7.94" or 65% 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: 6 Snowfall Number of days with 0.10" or more: 4 JUNE total = 0.00" Number of days with 0.50" or more: 0 JUNE max = 0.00" Number of days with 1.00" or more: 0 DAILY EXTREMES: Low temperature = 51 on the 5th, 10th High temperature = 100 on the 26th Maximum daily precipitation = 0.49" on the 14th Maximum 24-hour rainfall = 0.49" on the 14th Maximum wind gust = N 27 mph on the 26th Maximum barometric pressure = 30.198" on the 10th Minimum barometric pressure = 29.650" on the 13th NUMBER OF: Days Cloudy: 4 Days with thunderstorms: 1 Days Partly Cloudy: 18 # of Thunderstorms: 1 Days Clear/Sunny: 8 Days with some type of snowfall: 0 Days with Fog/Ground Fog: 6 Days with Dense Fog: 0 Days with Frost: 0 ------------------------------------------------------------------ YEAR-TO-DATE: (through June 30th, 1997) Temperatures Degree Days Precipitation Mean maximum: 64.6 (-0.6) Heating: Aqueous: 14.83" (DEP - 7.94") Mean minimum: 46.4 (+0.6) 2084.0 Maximum monthly: 3.17"/FEB.& MAR. Mean monthly: 55.5 ( 0.0) Cooling: Minimum monthly: 1.12"/JUN. 365.0 Highest: 100, June 26th Snowfall: 0.10" Lowest: 13, January 19 Maximum daily: 0.10"/JAN.11 Days with max temperature >= 90: 9 Maximum monthly: 0.10"/JAN. Days with max temperature <= 32: 2 Seasonal total: 0.10" Days with min temperature <= 32: 21 Days with some type of Days with temperature <= 0: 0 snowfall: 7 Days with measurable Number of: precipitation: 55 or 30.4% Days using Heating: 139 Days using Cooling: 40 Days with thunderstorms: 8 Days Cloudy: 23 Number of thunderstorms: 8 Days Partly Cloudy: 108 Days Clear/Sunny: 50 Greatest 24-hour period Days with fog/ground fog: 60 rainfall: 1.06"/APR. 28-29th Wind (Highest Gust): SW 56 miles per hour, March 29th Barometer: Highest 30.670" on February 17th Lowest: 29.412" on April 24th ------------------------------------------------------------------ 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: SU/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. ------------------------------------------------------------------