August & Yearly 2000

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: 2000
Latitude: 36° 50'N    Longitude: 76° 18'W  (OFFICIAL CITY) 
Station Elevation: 20 FT 
Standard Time: EASTERN DAYLIGHT

 
  Temperature Degree Days Precipitation     Wind 
Sky Cover		 Weather Peak Wind 
Date Max Min Mn Dep HDD CDD Total Snow Depth Avg Dir Type Types Speed Dir
1
89
73
81.0
+2
 
16.0
0.62
0.0
0
4.0
S
PC
TSRA 
DST LTG
22
W
2
91
72
81.5
+2
 
16.5
 
0.0
0
4.2
S
PC
DST LTG
17
S
3
87
73
80.0
0
 
15.0
1.45
0.0
0
4.4
S
PC
TSRA(2) BR
DST LTG
29
N
4
82
72
77.0
-3
 
12.0
0.46
0.0
0
4.7
S
C
BR SHRA 
TSRA DST LTG
19
S
5
80
69
74.5
-5
 
9.5
 
0.0
0
2.7
NNE
PC
BR HZ FROPA
16
N
6
87
69
78.0
-1
 
13.0
 
0.0
0
3.5
S
PC
HZ
18
S
7
93
78
85.5
+7
 
20.5
T
0.0
0
5.2
S
PC
HZ BR 
SHRA HOT
18
S
8
93
78
85.5
+6
 
20.5
0.07
0.0
0
3.5
S
PC
HZ HOT BR
TSRA SHRA
15
S
9
92
73
82.5
+3
 
17.5
0.21
0.0
0
4.3
S
PC
HZ TSRA
HOT HUMID
25
SE
10
86
72
79.0
-1
 
14.0
 
0.0
0
3.7
S
PC
 
16
S
11
86
71
78.5
-1
 
13.5
1.98
0.0
0
1.3
S
PC
TSRA BR
DST LTG
19
N
12
80
72
76.0
-2
 
11.0
0.66
0.0
0
2.0
N
PC
TSRA SHRA
DST LTG BR
17
N
13
78
68
73.0
-5
 
8.0
0.33
0.0
0
M
N
PC
SHRA BR
25
N
14
77
68
72.5
-6
 
7.5
1.03
0.0
0
M
N
PC
+SHRA BR
DST LTG
20
N
15
85
64
74.5
-3
 
9.5
 
0.0
0
2.4
W
SU
  
17
N
16
90
70
80.0
0
 
15.0
0.08
0.0
0
4.5
S
PC
HZ TSRA
19
W
17
82
67
74.5
-5
 
9.5
 
0.0
0
3.7
N
SU
FROPA
PLEASANT
16
N
18
81
70
75.5
-3
 
10.5
1.42
0.0
0
1.8
S
PC
TSRA SHRA 
HZ BR
14
S
19
78
65
71.5
-5
 
6.5
 
0.0
0
4.4
N
PC
FROPA COOLER
20
N
20
77
64
70.5
-5
 
5.5
 
0.0
0
2.8
N
PC
BR PLEASANT
15
NNE
21
78
62
70.0
-6
 
5.0
  
0.0
0
3.3
NNE
SU
BREEZY COOL
22
NNE
22
81
57
69.0
-6
 
4.0
 
0.0
0
1.9
SE
SU
 
16
NE
23
84
62
73.0
-3
 
8.0
 
0.0
0
3.3
S
PC
  
17
S
24
86
71
78.5
+2
 
13.5
0.03
0.0
0
3.3
W
PC
BR SHRA TSRA
17
W
25
79
70
74.5
-2
 
9.5
0.26
0.0
0
2.3
NNE
PC
BR HZ SHRA
16
NNE
26
83
64
73.5
-3
 
8.5
 
0.0
0
2.5
NNE
SU
BR HZ
12
NNE
27
86
68
77.0
-1
 
12.0
0.54
0.0
0
4.0
S
PC
BR HZ
SHRA TSRA
23
W
28
81
68
74.5
-4
 
9.5
T
0.0
0
1.7
N
PC
BR  SHRA
DST LTG 
14
NNE
29
84
69
76.5
-2
 
11.5
0.02
0.0
0
1.9
SSE
PC
SHRA
13
NE
30
77
70
73.5
-3
 
8.5
1.34
0.0
0
3.6
NE
C
SHRA BR
21
NE
31
85
72
78.5
+2
 
13.5
0.61
0.0
0
1.7
SE
PC
SHRA HUMID BR
14
NE

 
Temperature Data
AVERAGE HIGH : 83.8º     DEPARTURE:  -2.6º
AVERAGE LOW :  69.1º     DEPARTURE:  -0.5º
MEAN:                    76.4º     DEPARTURE:  -1.6º

HIGHEST: 93º on 7th and 8th
LOWEST:  57º on 22nd

Number of Days:
00 - MAX 100º OR ABOVE
00 - MAX 32º OR BELOW
05 - 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:   2977.0 (season ended June 30)

Cooling Degree Days
TOTAL THIS MONTH: 354.5 from 31 days
SEASONAL TOTAL:   1303.0

NUMBER OF:

02 - Days Cloudy
24 - Days Partly Cloudy
05 - Days Clear or Sunny

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

00 - Days with Frost

11 - Days with Thunderstorms
12 - Thunderstorms

00 - Days with some type of Snowfall

 Precipitation Data
TOTAL FOR THE MONTH: 11.11"
DEPARTURE FROM NORMAL: +5.70" or 205%
GREATEST DAILY: 1.98" on the 11th
GREATEST IN 24- HR PERIOD: 2.64" 11-112th [4PM-4PM]
AVERAGE DAILY: 0.36"
NORMAL DAILY:   0.17"
# DAYS WITH MEASURABLE PRECIPITATION:  17
YEAR-TO-DATE: 39.22"  DEPARTURE: +5.63" or 117% 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: 0.00"
GREATEST IN 24 HOURS: 0.00" on the ---
GREATEST DEPTH ON GROUND: 0.00 on the ---

AUGUST MAX = 0.0"

Number of Days:
WITH 0.01" OR MORE PRECIP: 17
WITH 0.10" OR MORE PRECIP: 13
WITH 0.50" OR MORE PRECIP: 9
WITH 1.00" OR MORE PRECIP: 5

Pressure Data
HIGHEST SEA-LEVEL:  30.324" on the 22nd
LOWEST SEA-LEVEL:   29.720" on the 12th

Wind
PEAK WIND GUST: 29 mph from the N on the 3rd
AVERAGE SPEED: 3.20 mph from a dominant S direction

YEAR-TO-DATE 2000 [through 8/31/00; next update 10/1/00]

Temperature Data
AVERAGE HIGH : 71.1º   DEPARTURE: +0.1º
AVERAGE LOW :  53.6º   DEPARTURE: +1.3º
MEAN:                     62.3º  DEPARTURE:  +0.7º

HIGHEST: 95º on 13th of May
LOWEST:  12º on 28th of January

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

Heating Degree Days
TOTAL:  1952.5

Cooling Degree Days
TOTAL:      1303.5

NUMBER OF:

034 - Days Cloudy
154 - Days Partly Cloudy
056 - Days Clear or Sunny

81 - Days with Fog/Ground Fog
24 - Days with Dense Fog

07 - Days with Frost

33 - Days with Thunderstorms
35 - Thunderstorms

09 - Days with some type of Snowfall

 Precipitation Data
TOTAL: 39.22"
DEPARTURE FROM NORMAL:   +5.63" or 117%
GREATEST DAILY: 2.21" on July 24th
GREATEST IN 24- HR PERIOD: 2.23" on the 24-25th of July
AVERAGE DAILY: 0.16"
NORMAL DAILY: 0.14"
# DAYS WITH MEASURABLE PRECIPITATION:  93 or 38.11%

MAXIMUM:  11.11" in August
MINIMUM:   1.29" in February

Snowfall, Ice Pellets
TOTAL: 6.70"
GREATEST IN 24 HOURS: 4.0" on January 25th
GREATEST DEPTH ON GROUND: 4.0" on January 25th

Number of Days:

WITH 0.01" OR MORE PRECIP: 93
WITH 0.10" OR MORE PRECIP: 61
WITH 0.50" OR MORE PRECIP: 28
WITH 1.00" OR MORE PRECIP: 12

Pressure Data
HIGHEST SEA-LEVEL: 30.758" on the January 15th
LOWEST SEA-LEVEL:  29.232" on the January 25th

 
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

August 2000 Temperature Graph
August 2000 Rain/Relative Humidity Graph
August 2000 Wind Graph
August 2000 Barometer & Wind Graph


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