October & 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:   OCTOBER  Year: 2001
Latitude: 36° 81' N    Longitude: 76° 33' W
Station Elevation: 20 FT 
Standard Time: EASTERN DAYLIGHT TIME (1st through 28th)
                             EASTERN STANDARD TIME (29th - 31st)

 
  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
63
54
58.5
-8
6.5
 
T
0.0
0
3.6
N
C
-SHRA
20
N
2
76
49
62.5
-5
2.5
 
 
0.0
0
1.2
N
SU
 PLEASANT
18
N
3
82
57
69.5
+4
 
4.5
 
0.0
0
2.4
S
SU
QUITE PLEASANT
16
S
4
81
59
70.0
+4
 
5.0
 
0.0
0
1.2
S
SU
 
16
S
5
81
61
71.0
+5
 
6.0
 
0.0
0
2.0
S
SU
 
14
S
6
72
53
62.5
-3
2.5
 
0.53
0.0
0
5.1
N
PC
SHRA BR FROPA
20
N
7
60
50
55.0
-8
10.0
 
 
0.0
0
4.7
N
SU
COOL
22
N
8
57
44
50.5
-12
14.5
 
 
0.0
0
4.8
N
SU
COOL
21
N
9
64
40
52.0
-12
13.0
 
 
0.0
0
1.6
NE
SU
COLD
13
NE
10
74
48
61.0
-1
4.0
 
 
0.0
0
1.8
SSE
SU
 
13
S
11
75
52
63.5
0
1.5
 
 
0.0
0
0.7
SE
SU
 
10
S
12
75
53
64.0
+2
1.0
 
 
0.0
0
1.4
ESE
SU
 
11
W
13
77
56
66.5
+4
 
1.5
 
0.0
0
1.5
S
SU
 
10
S
14
80
59
69.5
+7
 
4.5 
0.33
0.0
0
3.5
S
PC
SHRA (PM)
16
S
15
71
56
63.5
+2
1.5
 
 
0.0
0
2.8
W
PC
FROPA (AM)
16
W
16
75
50
62.5
+1
2.5
 
 
0.0
0
2.6
SSE
PC
BREEZY FROPA
22
WNW
17
62
45
53.5
-7
11.5
 
 
0.0
0
4.9
W
SU
COOLER
23
W
18
58
45
51.5
-10
13.5
 
 
0.0
0
3.3
N
SU
COOL
17
N
19
70
40
55.0
-5
10.0
 
 
0.0
0
1.8
S
SU
PLEASANT
16
S
20
75
54
64.5
+5
0.5
 
 
0.0
0
1.5
S
SU
-BR PLEASANT
19
W
21
78
56
67.0
+7
 
2.0
 
0.0
0
0.5
SSE
PC
BR PLEASANT
10
SSE
22
80
59
69.5
+10
 
4.5
 
0.0
0
0.8
S
SU
BR
14
W
23
80
58
69.0
+9
 
4.0
 
0.0
0
0.2
SE
PC
BR
12
S
24
86
67
76.5
+17
 
11.5
 
0.0
0
2.9
S
SU
+FG (AM)
17
S
25
80
55
67.5
+8
 
2.5
 
0.0
0
5.0
S
SU
BREEZY
29
W
26
62
45
53.5
-5
11.5
 
 
0.0
0
5.6
W
SU
 BREEZY COOLER
31
W
27
53
40
46.5
-11
18.5
 
T
0.0
0
5.8
N
PC
SHRA BREEZY
FROPA COOL
24
N
28
51
42
46.5
-11
18.5
 
 
0.0
0
6.3
N
SU
COLD BREEZY
23
N
29
56
37
46.5
-9
18.5
 
 
0.0
0
1.8
N
SU
COOL
14
N
30
63
37
50.0
-7
15.0
 
 
0.0
0
2.5
N
SU
 
17
N
31
68
46
57.0
-1
8.0
 
 
0.0
0
0.9
NNE
SU
-BR(AM)
14
N

 
Temperature Data
AVERAGE HIGH :  70.5º     DEPARTURE:        -0.2º
AVERAGE LOW :   50.5º     DEPARTURE:       -1.6º
MEAN:                     60.5º     DEPARTURE:       -0.9º

HIGHEST: 86° on the 24th
LOWEST:  37º on the 29th and 30th

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:  185.0 from 21 days
SEASONAL TOTAL:   207.0

Cooling Degree Days
TOTAL THIS MONTH:  46.0 from 10 days
SEASONAL TOTAL:   1542.5

NUMBER OF:

01 - Days Cloudy
07 - Days Partly Cloudy
23 - Days Clear or Sunny

07 - Days with Fog/Ground Fog
01 - 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:   0.86"
DEPARTURE FROM NORMAL: -2.61" or 25%
GREATEST DAILY: 0.53" on the 6th
GREATEST IN 24-HR PERIOD: 0.53" on the 5th
AVERAGE DAILY: 0.03"
NORMAL DAILY:   0.11"
# DAYS WITH MEASURABLE PRECIPITATION:  2
YEAR-TO-DATE: 29.73"  DEPARTURE: -11.60" or 72% of the norm

MAXIMUM FOR OCTOBER:  11.60" in 1999 --> (since
MINIMUM FOR OCTOBER:    0.02" in 2000 -->  1976)
NORMAL FOR OCTOBER:   3.60"
3rd DRIEST OCTOBER IN DATABASE [SINCE 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 ---
OCTOBER MAX = 0.0" in ----

Number of Days:
WITH 0.01" OR MORE PRECIP: 2
WITH 0.10" OR MORE PRECIP: 2
WITH 0.50" OR MORE PRECIP: 1
WITH 1.00" OR MORE PRECIP: 0

Pressure Data
HIGHEST SEA-LEVEL:  30.657" on the 9th
LOWEST SEA-LEVEL:   29.690" on the 25th

Wind
PEAK WIND GUST: 31 mph from the W on the 26th
AVERAGE SPEED: 2.70 mph from a dominant N direction

 
  • OCTOBER RECORDS: 3rd DRIEST OCTOBER IN DATABASE [SINCE 1976]
  • 7th - Minimum maximum temperature TIED - 60° (previously set in 1988)
  • 8th - Minimum maximum temperature TIED - 57 ° (previously set in 2000)
  • 24th - Maximum temperature - 86 ° (previously 81° in 1984)
  • 25th - Maximum temperature TIED - 80 ° (previously in 1991)
    		•

    YEAR-TO-DATE 2001 through 10/31
    [next update 12/1/2001]

    Temperature Data
    AVERAGE HIGH : 71.0º   DEPARTURE:  -0.9º
    AVERAGE LOW :  53.9º   DEPARTURE: +0.4º
    MEAN:                    62.5º  DEPARTURE:   -0.2º

    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:  2314.0

    Cooling Degree Days
    TOTAL:   1542.5

    NUMBER OF:

    032 - Days Cloudy
    199-  Days Partly Cloudy
    073 - Days Clear or Sunny

    124 - Days with Fog/Ground Fog
    006 - Days with Dense Fog

    12 - Days with Frost

    24 - Days with Thunderstorms
    28 - Thunderstorms

    05 - Days with some type of Snowfall

    		 Precipitation Data
    TOTAL:  29.73"
    DEPARTURE FROM NORMAL:   -11.60" or 72%
    GREATEST DAILY: 2.18" on the 16th of June
    GREATEST IN 24-HR PERIOD: 2.18" on the 16th of June
    AVERAGE DAILY: 0.10"
    NORMAL DAILY: 0.14"
    # DAYS WITH MEASURABLE PRECIPITATION:  90 or 29.61%

    MAXIMUM:  5.26" in June
    MINIMUM:   0.86" in October

    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: 90
    WITH 0.10" OR MORE PRECIP: 58
    WITH 0.50" OR MORE PRECIP: 20
    WITH 1.00" OR MORE PRECIP: 8

    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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