July & 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:   JULY     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
82
63
72.5
-5
 
7.5
0.0
0.0
0
2.3
NNE
PC
FROPA
17
N
2
88
63
75.5
-3
 
10.5
0.0
0.0
0
3.0
SSE
PC
 
13
W 
3
89
67
78
-1
 
13
0.0
0.0
0
5.8
S
PC
HZ BR
20
S
4
90
73
81.5
+2
 
16.5
0.0
0.0
0
5.2
S
PC
HZ BR
18
S
5
89
75
82.0
+3
 
17.0
T
0.0
0
3.2
NE
PC
HZ BR -SHRA
14
W
6
85
74
79.5
-1
 
14.5
0.0
0.0
0
3.1
NNE
PC
HZ BR FROPA
16
NE
7
80
70
75.0
-5
 
10.0
0.0
0.0
0
3.6
NNE
PC
HZ BR FROPA
17
N
8
80
64
72.0
-8
 
7.0
0.0
0.0
0
3.2
NNE
PC
COOLER DRIER
16
NNE
9
86
67
76.5
-5
 
11.5
0.0
0.0
0
6.0
S
PC
WARMER HUMID
18
S
10
93
75
84.0
+3
 
19.0
0.0
0.0
0
5.8
S
PC
BR HZ 
HOT HUMID
23
W
11
86
70
78.0
-2
 
13.0
T
0.0
0
2.8
NNE
PC
HZ FROPA SHRA
18
NE
12
84
69
76.5
-4
 
11.5
0.0
0.0
0
3.4
NE
PC
-HZ COOLER
16
NE
13
85
65
75.0
-6
 
10.0
0.0
0.0
0
2.1
NE
PC
-HZ PLEASANT
12
E
14
87
71
79.0
-3
 
14.0
0.01
0.0
0
3.7
S
PC
HZ SHRA
16
S
15
79
69
74.0
-7
 
9.0
0.11
0.0
0
3.5
S
PC
TSRA FROPA COOLER
15
NNE
16
88
68
78.0
-3
 
13.0
T
0.0
0
3.0
SSE
PC
-TSRA BR 
DST LTG
18
S
17
85
67
76.0
-4
 
11.0
0.0
0.0
0
3.5
N
PC
 
17
N
18
92
69
80.5
0
 
15.5
0.0
0.0
0
3.2
S
SU
-HZ HOT
17
S
19
92
76
84.0
+3
 
19.0
0.19
0.0
0
4.6
S
PC
HZ HOT 
TSRA SHRA
22
W
20
79
67
73.0
-8
 
8.0
0.13
0.0
0
4.7
NNE
PC
BR SHRA 
FROPA DZ
22
NNE
21
84
69
76.5
-5
 
11.5
  T
0.0
0
3.0
S
PC
HZ -SHRA
19
S
22
85
67
76.0
-5
 
11.0
0.71
0.0
0
1.6
SSW
PC
HZ HUMID 
SHRA TSRA
15
N
23
82
69
75.5
-4
 
10.5
0.04
0.0
0
3.0
NNE
PC
BR SHRA
10
NNE
24
75
64
69.5
-10
 
4.5
2.21
0.0
0
6.0
N
C
BR SHRA 
DST LTG FROPA
32
N
25
71
65
68.0
-11
 
3.0
0.26
0.0
0
4.6
NE
C
SHRA COOL DAMP BR
15
N
26
80
71
75.5
-4
 
10.5
0.69
0.0
0
2.6
S
C
SHRA BR
14
N
27
82
70
76.0
-4
 
11.0
0.04
0.0
0
2.1
N
PC
BR SHRA
13
NNE
28
85
70
77.5
-3
 
12.5
0.0
0.0
0
2.2
NE
PC
FG
12
NNE
29
85
74
79.5
0
 
14.5
0.08
0.0
0
3.3
SSE
PC
SHRA BR 
DST LTG
13
SE
30
88
72
80.0
+1
 
15.0
0.13
0.0
0
2.1
S
PC
TSRA BALMY
21
S
31
84
73
78.5
-1
 
13.5
0.25
0.0
0
3.6
S
PC
SHRA
16
S

 
Temperature Data
AVERAGE HIGH : 84.5º     DEPARTURE:  -4.4º
AVERAGE LOW :  69.2º     DEPARTURE:  -2.1º
MEAN:                    76.9º     DEPARTURE:  -3.2º

HIGHEST: 93º on 10th
LOWEST:  63º on 1st & 2nd

Number of Days:
00 - MAX 100º OR ABOVE
00 - MAX 32º OR BELOW
04 - 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: 368.0 from 31 days
SEASONAL TOTAL:    948.5

NUMBER OF:

03 - Days Cloudy
27 - Days Partly Cloudy
01 - Days Clear or Sunny

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

00 - Days with Frost

06 - Days with Thunderstorms
06 - Thunderstorms

00 - Days with some type of Snowfall

 Precipitation Data
TOTAL FOR THE MONTH: 4.85"
DEPARTURE FROM NORMAL: -0.47" or 91%
GREATEST DAILY: 2.21" on the 24th
GREATEST IN 24- HR PERIOD: 2.23" on the 24-25th
AVERAGE DAILY: 0.16"
NORMAL DAILY:   0.17"
# DAYS WITH MEASURABLE PRECIPITATION:  13
YEAR-TO-DATE: 28.11"  DEPARTURE: -0.06" or 99% of the norm

MAXIMUM FOR JULY: 13.32" in 1999 --> (since
MINIMUM FOR JULY:  1.32" in 1978 -->  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 ---

JULY MAX = 0.0"

Number of Days:
WITH 0.01" OR MORE PRECIP: 13
WITH 0.10" OR MORE PRECIP: 9
WITH 0.50" OR MORE PRECIP: 3
WITH 1.00" OR MORE PRECIP: 1

Pressure Data
HIGHEST SEA-LEVEL:  30.202" on the 8th
LOWEST SEA-LEVEL:   29.583" on the 15th

Wind
PEAK WIND GUST: 32 mph from the N on the 24th
AVERAGE SPEED: 3.50 mph from the S

 
  • JULY 2000 RECORDS
  • 7th - Minimum maximum temperature 80o 
  • 20th - Minimum maximum temperature 79o 
  • 24th - Minimum maximum temperature 75o 
  • 25th - Minimum maximum temperature 71o 
  • 25th - Tie of Minimum temperature 65o (previously set in 1976)
    		•

    YEAR-TO-DATE 2000 [through 7/31/00; next update 8/31/00]

    Temperature Data
    AVERAGE HIGH : 69.2º   DEPARTURE: +0.5º
    AVERAGE LOW :  51.4º   DEPARTURE: +1.6º
    MEAN:                     60.3º  DEPARTURE:  +1.0º

    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
    23 - MAX 90º OR ABOVE
    26 - MIN 32º OR BELOW
    00 - MIN 0º OR BELOW

    Heating Degree Days
    TOTAL:  1952.5

    Cooling Degree Days
    TOTAL:       948.5

    NUMBER OF:

    032 - Days Cloudy
    130 - Days Partly Cloudy
    051 - Days Clear or Sunny

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

    07 - Days with Frost

    22 - Days with Thunderstorms
    23 - Thunderstorms

    09 - Days with some type of Snowfall

    		 Precipitation Data
    TOTAL: 28.11"
    DEPARTURE FROM NORMAL:   -0.07" or 99%
    GREATEST DAILY: 2.21" on July 24th
    GREATEST IN 24- HR PERIOD: 2.23" on the 24-25th of July
    AVERAGE DAILY: 0.13"
    NORMAL DAILY: 0.13"
    # DAYS WITH MEASURABLE PRECIPITATION:  76 or 35.68%

    MAXIMUM:  5.60" in May
    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: 76
    WITH 0.10" OR MORE PRECIP: 48
    WITH 0.50" OR MORE PRECIP: 19
    WITH 1.00" OR MORE PRECIP: 7

    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

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


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