October & 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:   OCTOBER   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 Weather Peak Wind 
Date Max Min Mn Dep HDD CDD Total Snow Depth Avg Dir Type Types Speed Dir
1
71
64
67.5
+1
 
2.5
0.02
0.0
0
5.3
NNE
PC
 SHRA
23
NNE
2
74
62
68.0
+1
 
3.0
 
0.0
0
4.2
N
SU
 
20
N
3
82
59
70.5
+5
 
5.5
 
0.0
0
1.7
S
SU
 
13
W
4
83
65
74.0
+8
 
9.0
 
0.0
0
3.8
S
SU
-GF (AM)
15
S
5
82
65
73.5
+8
 
8.5
 
0.0
0
3.5
S
SU
 
15
S
6
84
69
76.5
+11
 
11.5
 
0.0
0
5.1
S
PC
FROPA(EVE)
26
NW
7
69
56
62.5
-1
2.5
 
 
0.0
0
6.6
N
PC
FROPA 
(LATE EVE)
23
N
8
57
49
53.0
-10
12.0
 
 
0.0
0
6.3
N
C
COOL
24
N
9
54
42
48.0
-16
17.0
 
T
0.0
0
5.8
N
PC
SHRA COLD
23
N
10
62
38
50.0
-12
15.0
 
 
0.0
0
4.3
W
SU
COOL DRY
21
W
11
69
40
54.5
-9
10.5
 
 
0.0
0
2.1
W
SU
 
19
W
12
69
45
57.0
-5
8.0
 
 
0.0
0
2.3
N
SU
 
16
N
13
71
46
58.5
-4
6.5
 
 
0.0
0
1.9
NNE
SU
-BR(AM)
15
NNE
14
77
48
62.5
0
2.5
 
 
0.0
0
1.2
S
SU
-BR(AM)
11
W
15
77
49
63.0
+2
2.0
 
 
0.0
0
1.7
NNE
SU
-BR(AM)
16
N
16
77
54
65.5
+4
 
0.5
 
0.0
0
2.0
NE
SU
-BR (AM)
14
NNE
17
72
65
68.5
+8
 
3.5
T
0.0
0
5.3
NNE
C
-BR -DZ FROPA
16
NE
18
72
61
66.5
+5
 
1.5
T
0.0
0
4.3
N
PC
BR FG DZ FROPA
16
N
19
70
55
62.5
+2
2.5
 
 
0.0
0
3.7
N
SU
 
17
N
20
72
48
60.0
0
5.0
 
 
0.0
0
1.1
NNE
-PC
BR(AM)
13
NNE
21
75
52
63.5
+4
1.5
 
 
0.0
0
1.8
S
-PC
BR(AM)
16
S
22
69
55
62.0
+3
3.0
 
 
0.0
0
4.1
NE
PC
BR(AM) FROPA
22
NNE
23
64
50
57.0
-3
8.0
 
 
0.0
0
3.9
NE
SU
 
20
NE
24
64
47
55.5
-3
9.5
 
 
0.0
0
1.8
NNE
SU
 
13
N
25
68
48
58.0
-1
7.0
 
 
0.0
0
2.0
NE
SU
 
15
NNE
26
69
51
60.0
+1
5.0
 
 
0.0
0
2.8
NNE
PC
-BR(AM)
14
NNE
27
70
61
65.5
+7
 
0.5
 
0.0
0
6.0
N
SU
 
20
N
28
73
56
64.5
+6
0.5
 
 
0.0
0
5.3
N
PC
-HZ(AM) FROPA
33
N
29
60
44
52.0
-4
13.0
 
 
0.0
0
5.0
N
SU
BREEZY COOL
22
N
30
62
43
52.5
-4
12.5
 
 
0.0
0
2.9
N
SU
 
21
N
31
58
43
50.5
-7
14.5
 
 
0.0
0
3.8
N
SU
COOL
18
N

 
Temperature Data
AVERAGE HIGH : 70.2º     DEPARTURE:  -0.5º
AVERAGE LOW :  52.6º     DEPARTURE:  +0.4º
MEAN:                    61.4º     DEPARTURE:   0.0º

HIGHEST: 84º on 6th
LOWEST:  38º on 10th

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

Heating Degree Days
TOTAL THIS MONTH: 158.0 from 21 days
SEASONAL TOTAL:   180.0

Cooling Degree Days
TOTAL THIS MONTH: 46.0 from 10 days
SEASONAL TOTAL:   1547.5

NUMBER OF:

02 - Days Cloudy
10 - Days Partly Cloudy
19 - Days Clear or Sunny

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

00 - Days with Frost

00 - Days with Thunderstorms
00 - Thunderstorms

00 - Days with some type of Snowfall

 Precipitation Data
TOTAL FOR THE MONTH:  0.02"
DEPARTURE FROM NORMAL: -3.56" or 1%
GREATEST DAILY: 0.02" on the 1st
GREATEST IN 24-HR PERIOD: 0.02" on the 1st
AVERAGE DAILY: 0.00"
NORMAL DAILY:   0.12"
# DAYS WITH MEASURABLE PRECIPITATION:  1
YEAR-TO-DATE: 45.32"  DEPARTURE: +3.46" or 108% of the norm

MAXIMUM FOR OCTOBER: 11.60" in 1999 --> (since
MINIMUM FOR OCTOBER:    0.02" in 2000 -->  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 ---

OCTOBER MAX = 0.0"

Number of Days:
WITH 0.01" OR MORE PRECIP: 1
WITH 0.10" OR MORE PRECIP: 0
WITH 0.50" OR MORE PRECIP: 0
WITH 1.00" OR MORE PRECIP: 0

Pressure Data
HIGHEST SEA-LEVEL:  30.551" on the 23rd
LOWEST SEA-LEVEL:   29.850" on the 28th

Wind
PEAK WIND GUST: 33 mph from the N on the 28th
AVERAGE SPEED: 3.60 mph from a dominant N direction

 
  • OCTOBER 2000 RECORDS
  • 8th - Minimum maximum temperature 57o - previously 60o in 1988
  • 9th - Minimum maximum temperature 54o - previously 61o in 1981
  • 10th - Minimum temperature 38o - previously 39o in 1978
  • 11th - Minimum temperature 40o - tied with previous 40o in 1978
  • 28th - Maximum wind gust - 33 mph - previous 30 mph in 1991
  • 31st - Minimum Maximum temperature 58o - tied with previous 58o in 1980
  • OCTOBER 2000 establishes a new monthly record, the driest October (0.02") in the database (since 1976).
  • OCTOBER 2000 establishes a new all-time monthly record, the driest (0.02") month ever in the database (since 1976).
    		•

    YEAR-TO-DATE 2000 [through 10/31/00; next update 12/01/00]

    Temperature Data
    AVERAGE HIGH : 71.6º   DEPARTURE: -0.3º
    AVERAGE LOW :  54.6º   DEPARTURE: +1.2º
    MEAN:                     63.1º  DEPARTURE:  +0.4º

    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:  2132.5

    Cooling Degree Days
    TOTAL:   1547.5

    NUMBER OF:

    043 - Days Cloudy
    180 - Days Partly Cloudy
    082 - Days Clear or Sunny

    108 - Days with Fog/Ground Fog
    025 - Days with Dense Fog

    07 - Days with Frost

    36 - Days with Thunderstorms
    38 - Thunderstorms

    09 - Days with some type of Snowfall

    		 Precipitation Data
    TOTAL: 45.32"
    DEPARTURE FROM NORMAL:   +3.46" or 108%
    GREATEST DAILY: 2.21" on July 24th
    GREATEST IN 24- HR PERIOD: 2.52" on the 4-5th of September
    AVERAGE DAILY: 0.15"
    NORMAL DAILY: 0.14"
    # DAYS WITH MEASURABLE PRECIPITATION:  106 or 30.29%

    MAXIMUM:  11.11" in August
    MINIMUM:   0.02" in October (driest month ever in database)

    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: 106
    WITH 0.10" OR MORE PRECIP: 69
    WITH 0.50" OR MORE PRECIP: 32
    WITH 1.00" OR MORE PRECIP: 14

    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


    GoImage
    Return to PWRS' Monthly Summaries
    Return to PWRS' Database
    Return to PWRS' Home Page