August & Yearly 2001
Graphs follow the table summary!


Portsmouth Weather Records Service
 

Local Climatological Data
*Data Are Subject to Correction by PWRS

 Station:  PORTSMOUTH, VIRGINIA
Month:   AUGUST   Year: 2001
Latitude: 36° 81' N    Longitude: 76° 33' W
Station Elevation: 20 FT 
Standard Time: EASTERN DAYLIGHT TIME

 
  Temperature Degree Days Precipitation  Wind       Sky Weather Peak Wind 
Date Max Min Mn Dep HDD CDD Total Snow Depth Avg Dir Type Types Speed Dir
1
81
62
71.5
-8
 
6.5
 
0.0
0
2.5
NNE
SU
 
15
NNE
2
85
65
75.0
-4
 
10.0
 
0.0
0
2.1
S
PC
 
11
ESE
3
87
66
76.5
-3
 
11.5
 
0.0
0
0.0
S
SU
 
11
WSW
4
88
71
79.5
-1
 
14.5
 
0.0
0
2.8
S
PC
 
12
S
5
89
71
80.0
0
 
15.0
0.86
0.0
0
0.8
W
PC
HZ +SHRA BR
20
N
6
90
71
80.5
+1
 
15.5
 
0.0
0
1.9
S
PC
HZ HOT HUMID
11
WSW
7
93
74
83.5
+4
 
18.5
 
0.0
0
2.1
S
SU
HZ HOT HUMID
15
W
8
95
77
86.0
+7
 
21.0
 
0.0
0
2.0
S
SU
HZ HOT HUMID
14
W
9
96
79
87.5
+8
 
22.5
 
0.0
0
2.6
S
SU
HZ HOT HUMID
14
S
10
96
77
86.5
+7
 
21.5
0.19
0.0
0
3.9
S
PC
HZ HOT 
HUMID TSRA
17
SSW
11
93
75
84.0
+4
 
19.0
 
0.0
0
1.8
S
PC
HZ HUMID
DST LTG
15
S
12
89
74
81.5
+3
 
16.5
0.38
0.0
0
2.0
S
PC
HZ TSRA SHRA
14
SSE
13
90
73
81.5
+3
 
16.5
0.46
0.0
0
3.8
S
PC
HZ SHRA
TSRA BR
23
SSW
14
82
73
77.5
-1
 
12.5
0.14
0.0
0
2.8
NNE
PC
HZ BR -SHRA
FROPA
16
N
15
82
72
77.0
-1
 
12.0
 
0.0
0
3.1
NNE
SU
 
16
NNE
16
87
66
76.5
-2
 
11.5
 
0.0
0
1.9
E
SU
BR
13
WSW
17
90
71
80.5
+1
 
15.5
 
0.0
0
3.3
S
SU
-BR
17
S
18
86
72
79.0
+1
 
14.0
1.35
0.0
0
2.1
S
C
TSRA (3) BR
16
S
19
86
71
78.5
+2
 
13.5
0.06
0.0
0
3.2
S
PC
TSRA BR
14
S
20
86
73
79.5
+3
 
14.5
0.19
0.0
0
3.3
S
PC
TSRA BR
17
WNW
21
83
70
76.5
+1
 
11.5
 
0.0
0
1.8
W
PC
FROPA
14
N
22
85
67
76.0
+1
 
11.0
 
0.0
0
2.1
N
PC
BR
16
W
23
87
68
77.5
+2
 
12.5
 
0.0
0
2.5
S
PC
BR HZ
22
W
24
80
71
75.5
-1
 
10.5
0.06
0.0
0
4.0
NNE
PC
HZ SHRA 
FROPA BR
17
N
25
80
70
75.0
-1
 
10.0
 
0.0
0
5.1
NNE
PC
BREEZY
21
NE
26
83
68
75.5
-1
 
10.5
T
0.0
0
1.9
N
PC
-SHRA
17
NNE
27
89
67
78.0
0
 
13.0
 
0.0
0
2.0
S
PC
HZ
16
SSW
28
87
72
79.5
+1
 
14.5
 
0.0
0
1.9
W
PC
-BR HZ
DST LTG(AM)
17
W
29
86
74
80.0
+2
 
15.0
 
0.0
0
1.0
NNE
PC
BR HZ
13
N
30
86
71
78.5
+2
 
13.5
 
0.0
0
0.0
SE
PC
BR HZ
6
SE
31
86
73
79.5
+3
 
14.5
T
0.0
0
1.4
S
PC
-SHRA BR HZ
19
W

 
Temperature Data
AVERAGE HIGH :  87.2º     DEPARTURE:       +0.7º
AVERAGE LOW :   71.1º     DEPARTURE:      +1.5º
MEAN:                     79.1º     DEPARTURE:      +1.1º

HIGHEST: 96° on the 9th and 10th
LOWEST:  62º on the 1st

Number of Days:
00 - MAX 100º OR ABOVE
00 - MAX 32º OR BELOW
08 - 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:   3627.0

Cooling Degree Days
TOTAL THIS MONTH: 438.5 from 31 days
SEASONAL TOTAL:   1318.5

NUMBER OF:

01 - Days Cloudy
22 - Days Partly Cloudy
08 - Days Clear or Sunny

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

00 - Days with Frost

06 - Days with Thunderstorms
08 - Thunderstorms

00 - Days with some type of Snowfall

 Precipitation Data
TOTAL FOR THE MONTH:  3.69"
DEPARTURE FROM NORMAL: -1.65" or 69%
GREATEST DAILY: 1.35" on the 18th
GREATEST IN 24-HR PERIOD: 1.35" on the 18th
AVERAGE DAILY: 0.12"
NORMAL DAILY:   0.17"
# DAYS WITH MEASURABLE PRECIPITATION:  9
YEAR-TO-DATE: 26.12"  DEPARTURE: -7.12" or 79% of the norm

MAXIMUM FOR AUGUST:   15.06" in 1992 --> (since
MINIMUM FOR AUGUST:    1.33" in 1995 -->  1976)

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 ---
AUGUST MAX = 0.0" in ----

Number of Days:
WITH 0.01" OR MORE PRECIP: 9
WITH 0.10" OR MORE PRECIP: 7
WITH 0.50" OR MORE PRECIP: 2
WITH 1.00" OR MORE PRECIP: 1

Pressure Data
HIGHEST SEA-LEVEL:  30.329" on the 1st
LOWEST SEA-LEVEL:   29.807" on the 14th

Wind
PEAK WIND GUST: 23 mph from the SSW on the 13th
AVERAGE SPEED: 2.30 mph from a dominant S direction

 
  • AUGUST STATION RECORDS:
  • 9th - Daily maximum minimum temperature  79° (previously 76° 1984)
  • 9th - Daily maximum temperature TIE 96° (previously 1977)
    		•

    YEAR-TO-DATE 2001 through 8/31
    [next update 10/1/2001]

    Temperature Data
    AVERAGE HIGH : 70.3º   DEPARTURE:  -0.7º
    AVERAGE LOW :  53.2º   DEPARTURE: +0.8º
    MEAN:                    61.8º  DEPARTURE:   +0.1º

    HIGHEST: 96° on the 9th and 10th of August
    LOWEST:  22º on 4th of January

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

    Heating Degree Days
    TOTAL:  2107.0

    Cooling Degree Days
    TOTAL:   1318.5

    NUMBER OF:

    031 - Days Cloudy
    151-  Days Partly Cloudy
    061 - Days Clear or Sunny

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

    12 - Days with Frost

    22 - Days with Thunderstorms
    26 - Thunderstorms

    05 - Days with some type of Snowfall

    		 Precipitation Data
    TOTAL:  26.12"
    DEPARTURE FROM NORMAL:   -7.12" or 79%
    GREATEST DAILY: 2.18" on the 16th of June
    GREATEST IN 24-HR PERIOD: 2.18" on the 16th of June
    AVERAGE DAILY: 0.11"
    NORMAL DAILY: 0.14"
    # DAYS WITH MEASURABLE PRECIPITATION:  82 or 33.74%

    MAXIMUM:  5.26" in June
    MINIMUM:   1.51" in January

    Snowfall, Ice Pellets
    TOTAL: 0.6" 
    GREATEST IN 24 HOURS: 0.3" on February 22nd & March 6th
    GREATEST DEPTH ON GROUND: 0.3" on February 22nd & March 6th

    Number of Days:

    WITH 0.01" OR MORE PRECIP: 82
    WITH 0.10" OR MORE PRECIP: 51
    WITH 0.50" OR MORE PRECIP: 18
    WITH 1.00" OR MORE PRECIP: 7

    Pressure Data
    HIGHEST SEA-LEVEL: 30.660" on February 11th
    LOWEST SEA-LEVEL:  29.474" on March 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


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