MONTHLY SUMMARY OF CLIMATOLOGICAL DATA - PORTSMOUTH, VIRGINIA Portsmouth Weather Records Service Portsmouth, Virginia 23702-2017 (3 miles south/West Cradock Section) 12:01 AM EDT, Monday, August 1, 1994 ---------------------------------------------------------------------------- Monthly summary of Local Climatological Data for Portsmouth, Virginia West Cradock Section, during the month of July, 1994. Time is EDT. ---------------------------------------------------------------------------- D HT DN LT DN MT DN CDD PREC HB LB WD WS SC WXR TYPE/REMARKS ---------------------------------------------------------------------------- 1 93 7 70 2 81.5 4 16.5 003 997 SW 14 PC HOT DSNT LTG 2 95 8 73 4 84.0 6 19.0 .05 009 000 NNE 17 PC HOT TRW(1) F- 3 94 6 72 3 83.0 4 18.0 .02 015 004 NE 26 PC HOT DSNT LTG RW- 4 89 1 71 1 80.0 1 15.0 019 009 NNE 15 PC FROPA 5 88 0 73 2 80.5 1 15.5 020 009 NE 13 PC 6 97 8 72 1 84.5 4 19.5 010 998 SW 15 PC HOT HUMID 7 96 6 74 3 85.0 5 20.0 008 001 SW 16 PC HOT HUMID 8 96 6 74 5 85.0 5 20.0 017 007 SW 22 SU HOT HUMID BREEZY 9 98 6 76 5 87.0 6 22.0 013 002 SW 20 PC HOT BREEZY 10 98 8 72 -1 85.0 4 21.0 .14 008 998 N 25 PC HOT HUMID TRW FROPA 11 87 -3 72 0 79.5 -1 14.5 014 005 N 15 PC WARM LESS HUMID 12 90 -1 74 2 82.0 0 17.0 011 005 SSW 11 PC H- HOT HUMID 13 93 2 74 0 83.5 1 18.5 .04 012 005 SSW 25 PC TRW- 14 96 5 75 0 85.5 3 20.5 T 010 999 SW 16 PC RW- 15 99 10 76 3 87.5 7 22.5 .05 007 997 SW 19 PC TRW 16 95 6 73 1 84.0 3 19.0 .42 010 002 SW 14 PC RW+ 17 91 3 72 0 81.5 1 16.5 .51 011 004 SE 26 PC TRW RW+ 18 92 3 71 -1 81.5 1 16.5 .55 008 999 W 16 PC RW+ 19 92 2 73 2 82.5 2 17.5 .83 018 005 N 18 PC TRW COLDFROPA 20 92 1 72 1 82.0 1 17.0 .05 023 016 S 14 PC F WARM FROPA RW 21 89 -2 74 1 81.5 -1 16.5 .27 018 006 SSW 18 PC F TRW 22 85 -3 75 2 80.0 -1 15.0 .43 010 997 SSW 20 PC F RW 23 81 -6 73 2 77.0 -2 12.0 .29 007 998 SSW 17 PC F RW 24 91 3 72 1 81.5 2 16.5 002 991 SSW 11 PC F- HOT MUGGY 25 94 5 72 0 83.0 3 18.0 .41 997 986 NNE 17 PC TRW 26 89 0 71 0 80.0 0 15.0 .32 991 979 SSW 22 PC RW- TRW(2) R- 27 89 0 71 -1 80.0 0 15.0 .05 990 981 SSW 17 PC RW DSNTLTG 28 88 1 71 0 79.5 0 14.5 .48 002 983 SSW 22 PC RW TRW 29 88 0 71 1 79.5 0 14.5 .06 017 999 N 25 PC TRW-(2) 30 89 2 73 3 81.0 2 16.0 .03 020 013 SSW 16 PC RW- DSNT LTG 31 88 -1 72 1 80.0 0 15.0 .20 023 016 N 18 PC TRW ---------------------------------------------------------------------------- SUMMARY OF JULY 1994: TEMPERATURE: Monthly mean: High = 91.7 Low = 72.7 Mean = 82.2 Departure < Normal: High = +2.8 Low = +1.3 Mean = +2.0 Degree Days: Heating = 0.0 Cooling = 533.0 Number of Days Using: Heating = 00 Cooling = 31 PRECIPITATION: Total month = 5.20" Normal month = 4.89" Departure < Normal = +0.31" or 106% Normal Average daily = 0.17" Normal daily = 0.16" Number of days with measurable precipitation = 20 Maximum for July = 8.75" in 1991 --> (Since Minimum for July = 1.32" in 1978 --> 1976) Number of days with 0.01" or more: 20 Snowfall Number of days with 0.10" or more: 12 July total = 0.00" Number of days with 0.50" or more: 3 July maximum = 0.00" Number of days with 1.00" or more: 0 DAILY EXTREMES: Low temperature = 70 on the 1st High temperature = 99 on the 15th Maximum daily precipitation = 0.83" on the 19th Maximum 24-hour rainfall = 1.38" on the 18th-19th Maximum wind gust = 26 mph from the NE on the 3rd 26 mph from the SE on the 17th High barometer = 30.23" on the 20th and the 31st Low barometer = 29.79" on the 26th Number of Days with thundershowers/ Days Cloudy: 0 storms: 12 Days Partly Cloudy: 30 Number of thundershowers/ Days Clear/Sunny: 1 storms: 14 Days with Fog/Ground fog: 6 Days with some type of snowfall: 0 --------------------------------------------------------------------------- YEARLY-TOTALS-TO-DATE Temperatures Degree Days Precipitation Mean maximum: 70.6 (+1.9) Heating: 2135.5 Aqueous: 31.81" (DN +3.82") Mean minimum: 50.1 (+0.6) Cooling: 1148.0 Maximum monthly: 10.96"/MAR. Mean monthly: 60.4 (+1.3) Minimum monthly: 1.23"/APR. Highest: 99, July 15th Snowfall: 8.00" Lowest: 5, January 19th Maximum daily: 2.00"/JAN.14 Days with maximum temperature >= 90: 38 Maximum monthly: 6.90"/JAN. Days with minimum temperature <= 32: 38 Days with some type of Days with temperature <= 0: 00 snowfall: 15 Days with measurable precipitation: 78 or 37% Number of Days with thundershowers/ Days Cloudy: 27 storms: 25 Days Partly Cloudy: 145 Number of thundershowers/ Days Clear/Sunny: 40 storms: 27 Days with fog/ground fog: 60 Greatest 24-hour period rainfall: 3.69"/March 1-2 Wind (Highest Recorded Wind Gust): Southwest 50 miles per hour, January 4th West 50 miles per hour, March 18th Barometer: Highest 30.80" on January 10th; Lowest: 29.12" on March 2nd ---------------------------------------------------------------------------- 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; PREC., precipitation; YR, year; NORM, normal; DSNT (with LTG), distant lightning; CLDFROPA or CFP, cold 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. -----------------------------------------------------------------------------