Portsmouth Weather Records Service
 

Local Climatological Data
*Data Is Subject to Correction by PWRS

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

                                          STATION:   PORTSMOUTH, VIRGINIA
                                          MONTH:     SEPTEMBER
                                          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  82  68   75.0   -1   0.0  10.0  0.00 0.0    0 045  2.4 045 17 0199 0107  95  56  SU 8       FROPA
 2  82  63   72.5   -4   0.0   7.5  0.00 0.0    0 045  2.6 045 23 0214 0163 100  54  SU 8
 3  80  70   75.0   -2   0.0  10.0     T 0.0    0 045  5.0 045 21 0208 0107  97  72   C         -SHRA
 4  81  73   77.0   +1   0.0  12.0     T 0.0    0 045  4.8 045 21 0134 0088  96  75  PC         -SHRA
 5  81  70   75.5   +1   0.0  10.5  0.01 0.0    0 045  4.3 045 23 0152 0080  95  80   C         SHRA
 6  80  73   76.5   +1   0.0  11.5  0.10 0.0    0 045  3.4 023 23 0149 0061  99  79   C 1       SHRA
 7  81  72   76.5   +1   0.0  11.5  0.80 0.0    0 045  0.5 158 16 0061 9977 100  78   C 1       +SHRA
 8  83  73   78.0   +3   0.0  13.0  0.16 0.0    0 158  3.8 158 27 9977 9827 100  87   C 1       SHRA
 9  83  73   78.0   +3   0.0  13.0  0.47 0.0    0 158  4.9 158 24 0053 9836 100  72  PC 13      TSRA FROPA
10  80  67   73.5   -2   0.0   8.5  0.00 0.0    0 045  2.6 045 18 0179 0053  95  63  SU  
11  78  68   73.0   -1   0.0   8.0  0.00 0.0    0 045  1.8 045 15 0213 0154 100  70  PC 1
12  78  63   70.5   -3   0.0   5.5  0.00 0.0    0 045  2.3 045 18 0221 0167  99  63  SU         PLEASANT
13  79  62   70.5   -3   0.0   5.5  0.00 0.0    0 045  1.1 045 16 0212 0150  99  61  SU 1
14  76  64   70.0   -4   0.0   5.0     T 0.0    0 045  1.5 045 17 0247 0179 100  74  PC 1
15  79  71   75.0   +2   0.0  10.0  2.19 0.0    0 023  1.3 158 15 0208 0091 100  84  PC 13      +SHRA TSRA
16  80  69   74.5   +2   0.0   9.5     T 0.0    0 270  1.3 270 14 0128 0028  99  79  PC 1       -SHRA
17  84  74   79.0   +7   0.0  14.0  0.43 0.0    0 158  5.9 158 30 0032 9595 100  78  PC 3       TSRA SHRA REMNANTS HUR IVAN
18  76  63   69.5   -3   0.0   4.5  0.30 0.0    0 360  6.7 360 34 9930 9519  99  84   C 1       RA DZ FROPA WINDY
19  65  61   63.0   -9   2.0   0.0  0.00 0.0    0 360 10.7 360 34 0244 9942  96  61  PC         WINDY COOLER
20  69  58   63.5   -8   1.5   0.0  0.00 0.0    0 023  7.2 023 27 0352 0219  86  58  PC         BREEZY PLEASANT
21  75  53   64.0   -8   1.0   0.0  0.00 0.0    0 023  1.3 045 14 0315 0217  99  51  SU
22  83  57   70.0   -1   0.0   5.0  0.00 0.0    0 045  0.8 045 14 0245 0160  98  44  SU
23  80  59   69.5   +1   0.0   4.5  0.00 0.0    0 045  2.7 045 17 0199 0144  99  59  SU 1         
24  76  64   70.0   +2   0.0   5.0  0.00 0.0    0 045  3.4 045 20 0209 0158  97  58  SU
25  77  61   69.0    0   0.0   4.0  0.00 0.0    0 045  2.0 045 14 0168 0070  96  69  PC 1       
26  79  60   69.5   -1   0.0   4.5  0.00 0.0    0 045  2.1 045 16 0103 0053 100  64  PC 1
27  77  69   73.0   +3   0.0   8.0  0.36 0.0    0 045  1.2 045 17 0099 9949  98  82  PC 1       SHRA
28  81  68   74.5   +6   0.0   9.5  0.32 0.0    0 158  5.3 180 32 9949 9563 100  78  PC 1       SHRA
29  71  67   69.0   +2   0.0   4.0     T 0.0    0 293  2.7 293 24 9987 9661  94  80   C 1       -SHRA
30  78  64   71.0   +4   0.0   6.0  0.00 0.0    0 045  1.1 023 14 0112 9983  98  66   C 1
=============================================================================================================================
SM                       4.5 220.0  5.14 0.0    0                 0144 0010  98  69
==============================================================================================================================
AV 78.5 65.9 72.2 -0.3             +0.31          095 3.24 103 20.5                
===============================================================================================================================
NOTES:
WINDS IN M.P.H.
                      
 CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6) , PAGE 2

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

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

AVERAGE MAXIMUM: 78.5   TOTAL FOR MONTH:   5.14"           1 = FOG
AVERAGE MAX DEP: -2.2   DPTR FM NORMAL:   +0.31" OR 106%   2 = FOG REDUCING VISIBILITY  
AVERAGE MINIMUM: 65.9   GRTST 24HR  2.19" ON 15                TO 1/4 MILE OR LESS
AVERAGE MIN DEP: +1.6   GRTST DAILY 2.19" ON 15            3 = THUNDER
AVERAGE MONTHLY: 72.2   SNOW, ICE PELLETS, GLAZE           4 = ICE PELLETS              
AVERAGE MON DEP: -0.3   TOTAL MONTH:  0.0"                 5 = HAIL                     
                        GRTST DAILY   0.0" ON --TH         6 = GLAZE OR RIME            
HIGHEST: 84 ON  17      GRTST 24HR    0.0" ON --TH         7 = BLOWING DUST OR SAND:    
LOWEST:  53 ON  21      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:  10 OR 33.33%
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   9                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   2                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1                                  

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL THIS MO.   4.5    CLEAR  (SCALE 0-3)   8     18 FOG                          
                        PTCLDY (SCALE 4-7)  14      0 DENSE FOG    [VSBY 1/4 MILE OR LESS]
SEASONAL         4.5    CLOUDY (SCALE 8-10)  8      3 THUNDERSTORMS              
                                                    3 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    0 SNOW                         
TOTAL THIS MO. 220.0                                0 FROST
                        [PRESSURE DATA]                       [AVERAGE SKY COVER]
SEASONAL TOTAL 1649.0   HIGHEST SLP 30.352" ON THE 20TH                46.67% 
                        LOWEST  SLP 29.519" ON THE 18th
                        AVERAGE SLP 30.077"
[STATION RECORDS]

 2ND - TEMPERATURE MINIMUM TIED - 63 [PREVIOUSLY IN 1987]
17TH - TEMPERATURE MAXIMUM MINIMUM TIED - 74 [[PREVIOUSLY 1980]
17TH - WIND GUST MAXIMUM - 30 MPH [PREVIOUSLY 29 MPH 1990]
19TH - TEMPERATURE MINIMUM MAXIMUM [PREVIOUSLY 69 IN 1981]
21ST - TEMPERATURE MINIMUM 53 [PREVIOUSLY 54 IN 1981]
28TH - WIND GUST MAXIMUM - 32 MPH [PREVIOUSLY 28 MPH 1996]

 YEAR-TO-DATE

[TEMPERATURE DATA]      [PRECIPITATION DATA]

AVERAGE MAXIMUM: 71.6   TOTAL FOR YEAR:   41.61"
AVERAGE MAX DEP: -0.4   DPTR FM NORMAL:   +3.15" OR 108%
AVERAGE MINIMUM: 54.6   GRTST 24HR  2.99" ON  8/14-15     
AVERAGE MIN DEP: +0.9   GRTST DAILY 2.95" ON  8/14                         
AVERAGE MONTHLY: 63.1   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:  93  OR 33.94%
MAX 90 OR ABOVE:  13    0.10 INCH OR MORE:  67                                  
MIN 32 OR BELOW:  43    0.50 INCH OR MORE:  25                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:  11

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL         2166.5    CLEAR  (SCALE 0-3)  65    128 FOG                          
                        PTCLDY (SCALE 4-7) 150      1 DENSE FOG    [VSBY 1/4 MILE OR LESS]
                        CLOUDY (SCALE 8-10) 59     31 THUNDERSTORMS              
                                                   34 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    8 SNOW                         
TOTAL         1650.0                                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