Portsmouth Weather Records Service
 

Local Climatological Data
*Data Are Subject to Correction by PWRS

 Station:  PORTSMOUTH, VIRGINIA
Month:   JULY Year: 2002
Latitude: 36° 81' N    Longitude: 76° 33' W
Station Elevation: 20 FT 
Standard Time: EASTERN DAYLIGHT SAVINGS TIME

 
 
Temperature
Degree Days
Precipitation
 Wind
 Sky
Weather
Date
Max
Min
Mn
Dep
HDD
CDD
Total
Snow
Depth
Avg
Dir
GUST
  
Types
1
90
65
77.5
0
 
12.5
 
0.0
0.0
1.9
SSE
WNW 12
SU
HZ HOT HUMID
2
93
71
82.0
+4
 
17.0
 
0.0
0.0
2.1
S
S 12
SU
HZ HOT 
HUMID SEABREEZE
3
95
73
84.0
+5
 
19.0
 
0.0
0.0
1.8
S
S 12
SU
HZ HOT 
HUMID SEABREEZE
4
97
75
86.0
+6
 
21.0
 
0.0
0.0
2.3
S
NNE 11
PC
HZ HOT 
HUMID DST LTG
5
92
75
83.5
+4
 
18.5
 
0.0
0.0
3.1
NNE
NE 15
SU
HZ HOT HUMID
6
83
72
77.5
-2
 
12.5
 
0.0
0.0
4.3
NNE
NNE 20
SU
FROPA COOLER DRIER
7
89
66
77.5
-2
 
12.5
 
0.0
0.0
2.7
SSW
W 14
-PC
HZ
8
91
68
79.5
0
 
14.5
 
0.0
0.0
3.9
SSW
SSW 17
PC
HZ
9
95
70
82.5
+1
 
17.5
 
0.0
0.0
5.3
S
SSW 20
PC
HZ HOT HUMID
10
91
75
83.0
+2
 
18.0
0.02
0.0
0.0
4.0
S
W 17
PC
HZ HOT 
HUMID SHRA
11
77
66
71.5
-8
 
6.5
 
0.0
0.0
5.5
NNE
NNE 21
PC
FROPA COOLER
12
82
58
70.0
-10
 
5.0
 
0.0
0.0
2.7
NE
NNE 16
PC
 
13
89
61
75.0
-6
 
10.0
 
0.0
0.0
2.3
SSE
NE 12
PC
HZ
14
81
74
77.5
-4
 
12.5
1.50
0.0
0.0
1.5
NE
N 16
C
BR SHRA FROPA
15
86
72
79.0
-1
 
14.0
 
0.0
0.0
3.3
W
N 16
PC
HZ
16
93
73
83.0
+2
 
18.0
 
0.0
0.0
3.3
W
NNE 16
PC
HZ HOT HUMID
17
93
71
82.0
+1
 
17.0
 
0.0
0.0
0.7
NNE
NNE 12
PC
HZ HOT HUMID
18
95
73
84.0
+3
 
19.0
 
0.0
0.0
3.5
S
W 16
PC
HZ FU
HOT HUMID
19
96
75
85.5
+4
 
20.5
0.31
0.0
0.0
4.2
S
SSE 18
PC
HZ -SHRA(AM) 
TSRA (PM) BR
20
88
74
81.0
0
 
16.0
0.26
0.0
0.0
2.5
NNE
N 15
PC
BR HZ 
DST LTG TSRA
21
86
75
80.5
-1
 
15.5
 
0.0
0.0
2.4
NE
NE 15
PC
BR HZ HUMID
22
92
71
81.5
+1
 
16.5
 
0.0
0.0
2.6
S
SSW 13
SU
BR  HOT HUMID HZ
23
89
75
82.0
+2
 
17.0
0.20
0.0
0.0
4.2
S
S 18
PC
TSRA SHRA
DST LTG BR
24
86
75
80.5
+1
 
15.5
T
0.0
0.0
3.2
S
SSW 15
PC
-SHRA BR HUMID
25
83
75
79.0
-1
 
14.0
0.16
0.0
0.0
3.5
NNE
NNE 19
C
SHRA BR FROPA
26
82
74
78.0
-2
 
13.0
0.18
0.0
0.0
0.9
NNE
NNE 13
C
SHRA HUMID
27
92
74
83.0
+3
 
18.0
 
0.0
0.0
2.4
S
W 20
PC
-BR HZ HOT 
HUMID DST LTG
28
97
74
85.5
+6
 
20.5
 
0.0
0.0
3.7
S
S 15
SU
-HZ HOT HUMID
29
98
80
89.0
+9
 
24.0
 
0.0
0.0
4.5
W
W 20
SU
-HZ VERY HOT HUMID
30
98
79
88.5
+9
 
23.5
 
0.0
0.0
3.3
W
W 21
SU
-BR HZ HOT HUMID
31
91
78
84.5
+5
 
19.5
 
0.0
0.0
2.4
NNE
N 15
SU
-HZ FROPA HOT

 
Temperature Data
AVERAGE HIGH :  90.0º     DEPARTURE:       + 1.3º
AVERAGE LOW :  72.2º     DEPARTURE:       + 0.9º
MEAN:                 81.0º     DEPARTURE:       + 1.1º

HIGHEST: 98° on the 29th & 30th
LOWEST: 58º on the 12th

Number of Days:
00 - MAX 100º OR ABOVE
00 - MAX 32º OR BELOW
18 - MAX 90º OR ABOVE
00 - MIN 32º OR BELOW
00 - MIN 0º OR BELOW

Heating Degree Days
TOTAL THIS MONTH:  0.0 from 0 days
SEASONAL TOTAL: 2731.5 (since 09/2001)

Cooling Degree Days
TOTAL THIS MONTH:  498.5 from 31 days
SEASONAL TOTAL: 1116.0

NUMBER OF:

03 - Days Cloudy
18 - Days Partly Cloudy
10 - Days Clear or Sunny

10 - Days with Fog/Ground Fog
00 - Days with Dense Fog

00 - Days with Frost

03 - Days with Thunderstorms
03 - Thunderstorms

00 - Days with some type of Snowfall

 Precipitation Data
TOTAL FOR THE MONTH:   2.63"
DEPARTURE FROM NORMAL:    - 2.54" or 51%
GREATEST DAILY: 1.50" on the 14th
GREATEST IN 24-HR PERIOD: 1.50" on the 14th
AVERAGE DAILY: 0.08"
NORMAL DAILY:   0.17"
# DAYS WITH MEASURABLE PRECIPITATION:  7 or 22.58%

MAXIMUM FOR JULY:  13.32" in 1999 -->  (since
MINIMUM FOR  JULY:   1.32" in 1978 -->  1976)
NORMAL FOR  JULY:  5.26" (1976-2001)

Snowfall, Ice Pellets
TOTAL FOR THE MONTH: 0.0"
GREATEST IN 24 HOURS: 0.0" on the --
GREATEST DEPTH ON GROUND: 0.0" on the --
JULY MAX = 0.0" in ----

Number of Days:
WITH 0.01" OR MORE PRECIP: 7
WITH 0.10" OR MORE PRECIP: 6
WITH 0.50" OR MORE PRECIP: 1
WITH 1.00" OR MORE PRECIP: 1

Pressure Data
HIGHEST SEA-LEVEL:  30.282" on the 8th
LOWEST SEA-LEVEL:  29.828" on the 19th

Wind
PEAK WIND GUST: 21 mph from the NNE on the 11th and 
                          21 mph from the W on the 30th
AVERAGE SPEED:  3.03 mph from a dominant S direction

 
  • JULY STATION RECORDS: 
  • 3rd - Maximum Temperature - TIED - 95° [previously 1983]
  • 4th - Maximum Temperature - TIED - 97° [previously 1997]
  • 11th - Minimum Maximum Temperature - 77° [previously 80° in 1996]
  • 12th - Minimum Temperature - 58° [previously 63° in 1997]
  • 28th - Maximum Temperature - TIED - 97° [previously in 1995]
  • 29th - Maximum Minimum Temperature - 80° [previously 77° in 1993]
  • 30th - Maximum Temperature  - TIED - 98° [previously 98° in 1988]
  • 30th - Maximum Minimum Temperature - 79° [previously 76° in 1999]
    		•

    YEAR-TO-DATE 2002 through 7/31/02

    Temperature Data
    AVERAGE HIGH :  71.7º   DEPARTURE:   +2.8º
    AVERAGE LOW :  52.1º   DEPARTURE:   +2.1º
    MEAN:                61.9º   DEPARTURE:   +2.5º

    HIGHEST: 98° on 29th & 30th  of July
    LOWEST: 23º on 5th of January & the 5th of March

    Number of Days:
    00 - MAX 100º OR ABOVE
    00 - MAX 32º OR BELOW
    31 - MAX 90º OR ABOVE
    36 - MIN 32º OR BELOW
    00 - MIN 0º OR BELOW

    Heating Degree Days
    TOTAL:  1775.0

    Cooling Degree Days
    TOTAL:  1116.0

    NUMBER OF:

    020 - Days Cloudy
    138-  Days Partly Cloudy
    054 - Days Clear or Sunny

    090 - Days with Fog/Ground Fog
    003 - Days with Dense Fog

    12 - Days with Frost

    24 - Days with Thunderstorms
    34 - Thunderstorms

    04 - Days with some type of Snowfall

    		 Precipitation Data
    TOTAL:  25.45"
    DEPARTURE FROM NORMAL:   - 2.41" or 91%
    GREATEST DAILY: 1.85" on the 9th of May
    GREATEST IN 24-HR PERIOD: 1.97" on the 9th & 10th of May
    AVERAGE DAILY: 0.12"
    NORMAL DAILY: 0.13"
    # DAYS WITH MEASURABLE PRECIPITATION:  65 or 30.66%

    MAXIMUM:  5.49" in March
    MINIMUM:   1.63" in February

    Snowfall, Ice Pellets
    TOTAL: 9.2"
    GREATEST IN 24 HOURS: 9.0" on January 2nd - 3rd
    GREATEST DEPTH ON GROUND: 9.0" on January 3rd

    Number of Days:

    WITH 0.01" OR MORE PRECIP: 65
    WITH 0.10" OR MORE PRECIP: 46
    WITH 0.50" OR MORE PRECIP: 18
    WITH 1.00" OR MORE PRECIP: 08

    Pressure Data
    HIGHEST SEA-LEVEL: 30.601" on March 1st
    LOWEST SEA-LEVEL:  29.450" on January 6th

     
    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, inoper- ative 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;

    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
    FC+  Tornado/waterspout
    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 
    PL   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
    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
    V V   Used for obscurred sky

    METAR Qualifiers: (now placed in FRONT of code)

    -  Light     + Heavy      DR Low drifting    M  Below ( -x.x degrees)
                                           MI Shallow     PR Partial