Portsmouth Weather Records Service
 

Local Climatological Data
*Data Is Subject to Correction by PWRS

Station:  PORTSMOUTH, VIRGINIA
Month:   OCTOBER Year: 2004
Latitude: 36 48 04 N    Longitude: 76 19 37 W
Station Elevation: 20 FT 
Standard Time: EDT/EST
 LOCAL CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6)

                                          STATION:   PORTSMOUTH, VIRGINIA
                                          MONTH:     OCTOBER
                                          YEAR:      2004
                                          LATITUDE:   36 48 04 N                   
                                          LONGITUDE:  76 19 40 W                   
NOTE: DATA MAY EXTEND BEYOND RIGHT MARGIN
================================================================================================================================
|-----TEMPERATURE IN F:---------| |RAIN---SNOW-||------WIND-----|BAROMETER||HUMID||SKY||---------------WEATHER-----------------|
                                                  AVG  AVG PK  PK  MAX  MIN MAX MIN DOM WX
DY MAX MIN   AVG   DEP   HDD   CDD  WTR  SNW DPTH DIR  SPD DIR SPD BAR  BAR HUM HUM SKY TYPES / NOTES
=================================================================================================================================
                                 
 1  73  66   69.5   +3   0.0   4.5     T 0.0    0 360  0.5 023 14 0237 0124  97  65  PC 1       -SHRA
 2  77  65   71.0   +4   0.0   6.0  0.44 0.0    0 158  1.3 293 21 0209 0108  98  78  PC 13      TSRA
 3  73  64   68.5   +3   0.0   3.5  0.00 0.0    0 045  2.8 045 19 0171 0088  99  78   C 1       FROPA
 4  71  62   66.5    0   0.0   1.5  0.19 0.0    0 158  0.0 158  7 0127 0036  98  83  PC 1       SHRA
 5  66  57   61.5   -5   3.5   0.0  0.00 0.0    0 023  5.8 023 27 0350 0089  99  57  SU         FROPA
 6  65  49   57.0   -8   8.0   0.0  0.00 0.0    0 045  2.4 023 22 0454 0343  95  49  SU
 7  71  46   58.5   -5   6.5   0.0  0.00 0.0    0 045  0.8 023 14 0476 0403  95  53  SU
 8  75  49   62.0   -1   3.0   0.0  0.00 0.0    0 045  1.2 045 15 0415 0264  99  52  SU 1
 9  75  53   64.0    0   1.0   0.0  0.00 0.0    0 270  0.3 270 11 0264 0087  99  60  PC 2
10  74  59   66.5   +4   0.0   1.5  0.00 0.0    0 045  2.7 023 23 0087 0043  98  54  SU         FROPA
11  63  50   56.5   -7   8.5   0.0  0.00 0.0    0 023  3.8 023 20 0094 0042  88  56  PC         BREEZY COOLER
12  72  46   59.0   -3   6.0   0.0  0.00 0.0    0 270  2.0 270 21 0009 9777  90  47  SU
13  65  47   56.0   -6   9.0   0.0  0.23 0.0    0 045  0.4 045 35 9789 9518  99  73  PC 13
14  65  57   61.0   -2   4.0   0.0  0.27 0.0    0 270  2.1 270 15 9674 9492  99  86   C 1       SHRA DZ
15  65  54   59.5   -2   5.5   0.0  0.24 0.0    0 158  3.1 270 22 9653 9419  98  70  PC 1       RA FROPA
16  67  47   57.0   -4   8.0   0.0  0.00 0.0    0 180  3.3 206 23 9856 9603  88  47  SU
17  66  44   55.0   -5  10.0   0.0  0.00 0.0    0 270  2.8 270 26 0061 9856  91  35  SU         FROPA
18  70  44   57.0   -4   8.0   0.0  0.00 0.0    0 158  2.0 158 15 0149 0036  96  52  PC
19  78  63   70.5  +10   0.0   5.5  0.53 0.0    0 180  3.0 180 17 0041 9887  97  70  PC 13      SHRA 
20  67  61   64.0   +4   1.0   0.0  0.07 0.0    0 045  4.6 045 21 9999 9886  99  93   C 1       SHRA FROPA DZ
21  62  58   60.0    0   5.0   0.0  0.02 0.0    0 045  5.1 045 20 0102 9997  98  84   C 1       DZ -SHRA     
22  61  55   58.0   -1   7.0   0.0  0.00 0.0    0 045  6.5 023 27 0165 0081  86  68   C
23  62  50   56.0   -3   9.0   0.0  0.00 0.0    0 045  5.4 045 22 0158 0031  89  53  PC
24  53  48   50.5   -8  14.5   0.0  0.08 0.0    0 270  0.0 270 10 0031 9956  98  87  PC 1       RA FROPA
25  57  51   54.0   -5  11.0   0.0  0.00 0.0    0 023  1.2 023 17 0108 0006  97  81   C 1
26  66  50   58.0   -1   7.0   0.0  0.00 0.0    0 045  2.2 360 18 0190 0096  99  59  SU 1
27  63  46   54.5   -3  10.5   0.0  0.00 0.0    0 045  1.1 045 14 0215 0156  97  65  PC 1
28  65  50   57.5    0   7.5   0.0  0.00 0.0    0 045  1.8 045 15 0285 0213  92  57  SU 1
29  63  53   58.0   +2   7.0   0.0     T 0.0    0 158  0.2 158 11 0230 0003  90  70  PC 1       -SHRA WARMFROPA
30  79  61   70.0  +13   0.0   5.0  0.00 0.0    0 203  3.6 203 17 0003 9847  90  67  PC 18
31  80  63   71.5  +13   0.0   6.5  0.00 0.0    0 270  4.1 270 26 9994 9854  93  42  PC 18
=============================================================================================================================
SM                     160.5  34.0  2.07 0.0    0 
==============================================================================================================================
AV 68.0 53.8 60.9 -0.6             -1.48          132  2.45                         
===============================================================================================================================
NOTES:
WINDS IN M.P.H.
                      
 CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6) , PAGE 2

                                          STATION:  PORTSMOUTH, VIRGINIA
                                          MONTH:    OCTOBER
                                          YEAR:     2004
                                          LATITUDE:   36 48 04 N                   
                                          LONGITUDE:  76 19 40 W                   

[TEMPERATURE DATA]      [PRECIPITATION DATA]               SYMBOLS USED IN WX TYPES COLUMN

AVERAGE MAXIMUM: 68.0   TOTAL FOR MONTH:   2.07"           1 = FOG
AVERAGE MAX DEP: -2.5   DPTR FM NORMAL:   -1.48" OR  58%   2 = FOG REDUCING VISIBILITY  
AVERAGE MINIMUM: 53.5   GRTST 24HR  0.56" ON  19-20            TO 1/4 MILE OR LESS
AVERAGE MIN DEP: +1.4   GRTST DAILY 0.53" ON  19           3 = THUNDER
AVERAGE MONTHLY: 60.9   SNOW, ICE PELLETS, GLAZE           4 = ICE PELLETS              
AVERAGE MON DEP: -0.6   TOTAL MONTH:  0.0"                 5 = HAIL                     
                        GRTST DAILY   0.0" ON --TH         6 = GLAZE OR RIME            
HIGHEST: 80 ON   31     GRTST 24HR    0.0" ON --TH         7 = BLOWING DUST OR SAND:    
LOWEST:  44 ON  17,18   GRTST DEPTH:  0.0" ON --TH             VSBY  MILE OR LESS    
                                                           8 = SMOKE OR HAZE            
[NO. OF DAYS WITH]      [PRECIP  - DAYS WITH MEASURABLE]   9 = BLOWING SNOW             
                                                           X = TORNADO                  
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:   9 OR 28.13%
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   6                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL THIS MO. 160.5 
                        CLEAR  (SCALE 0-3)  10     20 FOG
                        PTCLDY (SCALE 4-7)  15      1 DENSE FOG    [VSBY 1/4 MILE OR LESS]
SEASONAL       165.0    CLOUDY (SCALE 8-10)  6      3 THUNDERSTORMS              
                                                    3 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    0 SNOW                         
TOTAL THIS MO.  34.0                                0 FROST
                        [PRESSURE DATA]                       [AVERAGE SKY COVER]
SEASONAL TOTAL 1671.5   HIGHEST SLP 30.476" ON THE  7TH                45.52% 
                        LOWEST  SLP 29.419" ON THE 15TH
                        AVERAGE SLP 30.045"
[STATION RECORDS]

31ST - TEMPERATURE - MAXIMUM 80 [PREVIOUSLY 79 IN 1994]

YEAR-TO-DATE

[TEMPERATURE DATA]      [PRECIPITATION DATA]

AVERAGE MAXIMUM: 71.2   TOTAL FOR YEAR:   43.68"
AVERAGE MAX DEP: -0.7   DPTR FM NORMAL:   +1.67" OR 104%
AVERAGE MINIMUM: 54.5   GRTST 24HR  2.99" ON  8/14-15     
AVERAGE MIN DEP: +0.9   GRTST DAILY 2.95" ON  8/14                         
AVERAGE MONTHLY: 62.9   SNOW, ICE PELLETS, GLAZE
AVERAGE MON DEP: +0.2   TOTAL:           6.5"                                   
                        GRTST DAILY   2.8" ON JANUARY 9TH
HIGHEST: 93 ON  6/18    GRTST 24HR    2.8" ON JANUARY 8-9TH
                7/07    GRTST DEPTH:  2.8" ON JANUARY 9TH               
LOWEST:  17 ON  1/11

[NO. OF DAYS WITH]      [PRECIP  - DAYS WITH MEASURABLE]                        
                                                                                
MAX 32 OR BELOW:   3    0.01 INCH OR MORE: 102  OR 33.44%
MAX 90 OR ABOVE:  13    0.10 INCH OR MORE:  73                                  
MIN 32 OR BELOW:  43    0.50 INCH OR MORE:  26                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:  11

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL         2320.0    CLEAR  (SCALE 0-3)  75    148 FOG                          
                        PTCLDY (SCALE 4-7) 165      2 DENSE FOG    [VSBY 1/4 MILE OR LESS]
                        CLOUDY (SCALE 8-10) 65     34 THUNDERSTORMS              
                                                   37 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    8 SNOW                         
TOTAL         1683.0                                7 FROST                     
                        [PRESSURE DATA]                                         
                        HIGHEST SLP 30.625" ON MARCH 25TH        
                        LOWEST  SLP 29.345" ON THE 18TH OF JANUARY  
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 > 1/4 but <=6 statute miles and
below to 1/4 mile
DU   Dust (widespread)
DS   Duststorm
DZ   Drizzle
FC   Funnel Cloud
FC+  Tornado/waterspout
FG   Fog with visibility <= 1/4 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