---------------------------------------------------------------------------- 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 September, 1995. Time is EDT. ----------------------------------------------------------------------------- D HT DN LT DN MT DN HDD CDD PREC WD WS SC WXR TYPE/REMARKS ----------------------------------------------------------------------------- 1 93 +8 67 -1 80.0 +4 15.0 .58 N 35 PC H HUMID TRW 2 79 -5 64 -4 71.5 -5 6.5 .41 NNW22 PC R F CLEARING 3 80 -5 60 -10 70.0 -8 5.0 NE 17 PC PLEASANT 4 82 -2 58 -10 70.0 -6 5.0 ENE17 PC PLEASANT 5 82 -2 58 -9 70.0 -5 5.0 SE 17 PC PLEASANT 6 88 +4 59 -8 73.5 -2 8.5 SSE19 PC 7 83 -2 68 +2 75.5 0 10.5 .19 NE 19 C RW F- 8 80 -2 70 +4 75.0 +1 10.0 .86 NE 15 C RW F 9 81 -3 69 +4 75.0 0 10.0 T NE 16 PC F- RW- CLEARING 10 77 -7 63 -3 70.0 -5 5.0 N 25 PC H- FROPA 11 76 -8 57 -8 66.5 -8 1.5 ENE21 SU PLEASANT 12 82 -2 58 -5 70.0 -4 5.0 SE 16 PC 13 87 +4 65 +1 76.0 +3 11.0 SSW25 SU F+(AM) 14 91 +9 70 +5 80.5 +7 15.5 T SSW25 PC H- RW- 15 79 -3 70 +5 74.5 +1 9.5 NE 22 PC FROPA 16 78 -4 70 +5 74.0 +1 9.0 .42 ENE25 C R- 17 75 -6 69 +4 71.5 -1 6.5 .66 NW 24 C R F FROPA 18 77 -5 63 -2 70.0 -3 5.0 T ENE20 PC F RW- 19 78 -4 67 +4 72.5 0 7.5 NNE22 PC 20 78 -2 60 -3 69.0 -2 4.0 E 16 SU PLEASANT 21 84 +4 61 -2 72.5 +1 7.5 ESE19 PC 22 87 +8 62 -2 74.5 +3 9.5 .92 S 27 PC RW- TRW R FROPA 23 62 -15 55 -4 58.5 -9 6.5 .59 N 29 C R COOL 24 71 -5 57 -3 64.0 -4 1.0 .02 NE 19 PC R-(AM) 25 79 +1 63 +2 71.0 +1 6.0 ESE19 PC 26 76 -4 64 +1 70.0 -1 5.0 .03 SW 19 PC L-F(AM) RW(PM) 27 74 -3 59 -2 66.5 -2 1.5 .02 N 15 PC RW- F (AM) 28 77 +1 53 -5 65.0 -2 NE 18 SU F (AM) 29 75 0 63 +5 69.0 +3 4.0 .02 NE 27 PC F-(AM) RW(PM) 30 75 +1 60 +1 67.5 +1 2.5 E 21 PC ----------------------------------------------------------------------------- SUMMARY OF SEPTEMBER 1995: TEMPERATURE: Monthly mean: High = 79.5 Low = 62.7 Mean = 71.1 Departure < Normal: High = -1.7 Low = -1.3 Mean = -1.5 Degree Days: Heating = 7.5 Cooling = 191.0 Number of Days Using: Heating = 2 Cooling = 27 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 = 4.72" Departure < Normal = +0.66" Normal month = 4.06" or 116% Average daily = 0.16" Normal daily = 0.14" Number of days with measurable precipitation = 12 Maximum for September = 10.29" in 1979 --> (Since Minimum for September = 0.26" in 1978 --> 1976) Number of days with 0.01" or more: 12 Snowfall Number of days with 0.10" or more: 8 September total = 0.00" Number of days with 0.50" or more: 5 September maximum = 0.00" Number of days with 1.00" or more: 0 DAILY EXTREMES: Low temperature = 53 on the 28th High temperature = 93 on the 1st Maximum daily precipitation = 0.92" on the 22nd Maximum 24-hour rainfall = 1.51" on the 22nd-23rd Maximum wind gust = N 35 mph on the 1st NUMBER OF: Days Cloudy: 5 Days with thunderstorms: 2 Days Partly Cloudy: 21 Thunderstorms: 2 Days Clear/Sunny: 4 Days with some type of snowfall: 0 Days with Fog/Ground fog: 11 --------------------------------------------------------------------------- YEARLY-TOTALS-TO-DATE (AS OF SEPTEMBER 30, 1995): Temperatures Degree Days Precipitation Mean maximum: 73.4 (+1.5) Heating: 1953.5 Aqueous: 29.54" (DEP -7.34") Mean minimum: 54.7 (+1.3) Cooling: 1690.5 Maximum monthly: 6.78"/JUNE Mean monthly: 64.0 (+1.3) Minimum monthly: 1.33"/AUG. Highest: 101, July 24th Snowfall: 0.20" Lowest: 13, February 6th and 7th Maximum daily: 0.20"/FEB. 8 Days with maximum temperature >= 90: 48 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: 81 or 30% Days using Heating: 119 Days using Cooling: 151 Days with thunderstorms: 19 Days Cloudy: 39 Number of thunderstorms: 21 Days Partly Cloudy: 188 Days Clear/Sunny: 46 Greatest 24-hour period Days with fog/ground fog: 69 rainfall: 3.06"/June 12-13 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. -----------------------------------------------------------------------------