July 1998
Graphs follow the text summary!
SAT, AUG 1, 1998 8:30 AM EDT
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MONTHLY SUMMARY OF CLIMATOLOGICAL DATA - PORTSMOUTH, VIRGINIA
Portsmouth Weather Records Service
Portsmouth, Virginia 23702-2017
(3 miles south / West Cradock Section)
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Monthly summary of Local Climatological Data for Portsmouth,
Virginia, West Cradock Section, during the month of July 1998.
Time is EDT.
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D HT DN LT DN MT DN HDD CDD PREC WD WS WAS SC WXR TYPE/REMARKS
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1 87 +1 71 +2 79.0 +2 14.0 N 19 4.5N SU FROPA
2 88 +1 70 +1 79.0 +1 14.0 T N 16 3.4NE PC HZ BR -SHRA(EVE)
3 88 0 70 +1 79.0 0 14.0 N 15 2.5N PC HZ
4 95 +7 69 -1 82.0 +3 17.0 0.06 SSW20 4.4SSW PC H -SHRA
5 82 -5 71 +1 76.5 -2 11.5 0.75 N 23 5.7N C FROPA TS SHRA BR
6 85 -4 67 -4 76.0 -4 11.0 NE 15 2.7NE PC
7 83 -6 70 -1 76.5 -4 11.5 N 17 3.6NE SU PLEASANT
8 87 -3 70 0 78.5 -1 13.5 T SW 18 3.1SSW PC -SHRA HUMID
9 84 -7 74 +3 79.0 -2 14.0 N 16 4.2N PC FROPA
10 87 -2 71 -1 79.0 -2 14.0 0.19 N 20 3.7N PC SHRA(AM) BR HZ
11 82 -7 70 -1 76.0 -4 11.0 N 17 4.6N PC FROPA(AM) PLEASANT
12 85 -5 63 -8 74.0 -7 9.0 N 15 2.7N SU PLEASANT
13 88 -3 64 -9 76.0 -6 11.0 S 12 2.3S SU PLEASANT
14 91 0 64 -10 77.5 -5 12.5 SW 13 2.0SW PC WARMER MORE HUMID
15 86 -3 74 +1 80.0 -1 15.0 NE 15 3.2NE C WARM VERY HUMID
16 84 -6 74 +2 79.0 -2 14.0 1.56 SSW21 2.1SW PC VERY HUMID TSRA(2) BR
17 83 -6 74 +2 78.5 -2 13.5 0.12 13 PC TSRA BR HZ HUMID
18 88 -2 73 +1 80.5 0 15.5 N 17 PC BR FROPA HZ
19 94 +4 73 +2 83.5 +3 18.5 SSW17 5.3SSW SU BR HZ HOT HUMID
20 97 +6 78 +6 87.5 +6 22.5 SSW21 5.8SW SU BR HZ
21 96 +5 76 +3 86.0 +4 21.0 SSW21 5.1SW SU BR HZ
22 99 +10 79 +6 89.0 +8 24.0 SW 21 6.1SW SU HZ HOT HUMID
23 98 +11 77 +5 87.5 +8 22.5 0.40 NE 26 5.5SW PC HOT HUMID BR TSRA
24 89 +1 74 +3 81.5 +2 16.5 SW 18 4.1NE PC HZ FROPA
25 85 -3 71 0 78.0 -2 13.0 0.18 N 25 2.5NE PC SHRA BR
26 79 -9 71 0 75.0 -5 10.0 0.02 NNE17 4.4NE C -SHRA BR
27 88 -1 67 -5 77.5 -3 12.5 T ENE11 1.9NNE PC -SHRA -HZ
28 88 0 76 +4 82.0 +2 17.0 NNE12 1.7NE PC BR(AM) HZ
29 95 +7 73 +2 84.0 +5 19.0 SW 18 4.3SW PC BR HZ HOT
30 96 +9 75 +4 85.5 +7 20.5 0.01 SW 18 3.7SW PC BR HZ-SHRA DSTLTG
31 84 -4 72 +1 78.0 -2 13.0 0.04 N 20 5.8N PC HZ FROPA SHRA DZ BR
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SUMMARY OF JULY 1998:
TEMPERATURE:
Monthly mean: High = 88.4 Low = 71.6 Mean = 80.0
Departure < Normal: High = -0.6 Low = +0.3 Mean = -0.2
Degree Days: Heating = 0.0 Cooling = 466.0
Number of Days Using: Heating = 0 Cooling = 31
Days with maximum temperature >= 90: 9
Days with maximum temperature <= 32: 0
Days with minimum temperature <= 32: 0
Days with minimum temperature <= 0: 0
PRECIPITATION:
Total month = 3.33" Departure from Normal = - 1.66"
Normal month (to date) 4.99" or 67%
Average daily = 0.11"
Normal daily = 0.16"
Number of days with measurable precipitation = 10
Year-to-date = 32.51" Departure = + 4.47" or 116% of normal
Maximum for July = 11.80" in 1996 --> (Since
Minimum for July = 1.32" in 1978 --> (1976)
Number of days with 0.01" or more: 10 Snowfall
Number of days with 0.10" or more: 6 July total = 0.00"
Number of days with 0.50" or more: 2 July max = 0.00" in
Number of days with 1.00" or more: 1 ----
DAILY EXTREMES: Low temperature = 63 on the 12th
High temperature = 99 on the 22nd
Maximum daily precipitation = 1.56" on the 14th
Maximum 24-hour rainfall = 1.68" on the 14th-15th
Maximum wind gust = NE 26 MPH on the 23rd
Maximum barometric pressure = 30.108" on the 14th
Minimum barometric pressure = 29.645" on the 1st
NUMBER OF:
Days Cloudy: 3 Days with thunderstorms: 4
Days Partly Cloudy: 20 # of Thunderstorms: 5
Days Clear/Sunny: 8 Days with some type of snowfall: 0
Days with Fog/Ground Fog: 16
Days with Dense Fog: 0
Days with Frost: 0
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YEAR-TO-DATE: (through July 31st, 1998)
Temperatures Degree Days Precipitation
Mean maximum: 70.7 (+1.9) Heating: Aqueous: 32.51" (DEP +4.47") 116%
Mean minimum: 53.6 (+3.9) 1728.0 Maximum monthly: 7.60"/FEB.
Mean monthly: 62.1 (+2.9) Cooling: Minimum monthly: 3.33"/JULY
1120.5
Highest: 99, July 22
Snowfall: 0.00"
Lowest: 24, January 1 Maximum daily: 0.00"
Days with max temperature >= 90: 29 Maximum monthly: 0.00"
Days with max temperature <= 32: 0
Days with min temperature <= 32: 13 Days with some type of
Days with temperature <= 0: 0 snowfall: 2
Days with measurable
Number of: precipitation: 78 or 36.8%
Days using Heating: 112
Days using Cooling: 99 Days with thunderstorms: 20
Days Cloudy: 40 Number of thunderstorms: 22
Days Partly Cloudy: 128
Days Clear/Sunny: 44 Greatest 24-hour period
Days with fog/ground fog: 95 rainfall: 3.86"/FEB. 4th
Wind (Highest Gust): SE 53 miles per hour, January 27th
Barometer: Highest 30.667" on January 1st
Lowest: 29.198" on February 4th
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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
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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; TS, tropical storm
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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
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NOTES: All temperatures are in degrees fahrenheit. All precipita-
tion measurements are in inches. All wind speeds are in miles per
hour.
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