Portsmouth Weather Records Service
 

Local Climatological Data
*Data Is Subject to Correction by PWRS

Station:  PORTSMOUTH, VIRGINIA
Month:   JULY 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:     JULY
                                          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  86  67   76.5   -1   0.0  11.5 0.00 0.0    0 130  1.7 113 12 0164 0063  98  57  PC 18      DSTLTG
 2  88  71   79.5   +2   0.0  14.5 0.01 0.0    0 113  1.0 113 21 0097 9958  96  61  PC 18      SHRA DSTLTG
 3  88  70   79.0    0   0.0  14.0 0.61 0.0    0 113  1.1 315 16 9991 9947 100  64  PC 183     +SHRA
 4  83  73   78.0   -2   0.0  13.0 1.02 0.0    0 158  1.5 158 18 9991 9895 100  82  PC 13      +SHRA DSTLTG WARMFROPA
 5  90  72   81.0   +1   0.0  16.0 0.06 0.0    0 270  1.8 270 17 9947 9878 100  61  PC 1       SHRA HUMID DSTLTG
 6  89  73   81.0   +1   0.0  16.0 0.00 0.0    0 023  2.7 023 15 9975 9884  96  58  SU 18      FROPA
 7  93  70   81.5   +2   0.0  16.5 0.44 0.0    0 158  2.1 023 27 9920 9807 100  57  PC 831     HZ FU TSRA(2)
 8  89  68   78.5   -1   0.0  13.5 0.00 0.0    0 158  1.9 270 16 9935 9843 100  57  PC 8       DST LTG
 9  91  71   81.0    0   0.0  16.0 0.00 0.0    0 158  2.0 158 15 0061 9926 100  44  SU 8
10  86  76   81.0    0   0.0  16.0 0.00 0.0    0 045  2.3 045 17 0109 0031  94  63  SU 8
11  86  75   80.5   +1   0.0  15.5 0.00 0.0    0 158  1.7 158 14 0122 0040  92  62  SU 8
12  88  75   81.5   +2   0.0  16.5    T 0.0    0 158  3.1 158 20 0085 9892  96  67  PC 8       -SHRA
13  89  73   81.0    0   0.0  16.0 0.16 0.0    0 270  2.9 023 21 9896 9780  99  69  PC 183     HZ TSRA(2)
14  89  72   80.5    0   0.0  15.5 0.33 0.0    0 270  2.8 023 27 9789 9562 100  62  PC 831     HZ 
15  85  70   77.5   -2   0.0  12.5 0.00 0.0    0 270  2.7 270 21 9803 9634 100  53  SU 1
16  85  66   75.5   -5   0.0  10.5 0.00 0.0    0 270  2.2 270 21 9883 9766  92  44  SU
17  88  66   77.0   -3   0.0  12.0 0.00 0.0    0 158  2.5 158 20 9907 9834  91  46  PC
18  82  70   76.0   -5   0.0  11.0 2.14 0.0    0 158  1.7 023 14 9871 9723 100  71  PC 31      +TSRA
19  85  72   78.5   -2   0.0  13.5 0.00 0.0    0 045  2.1 045 15 9888 9757 100  63  PC 8       HZ
20  85  71   78.0   -3   0.0  13.0 0.01 0.0    0 158  0.9 045 14 9978 9865 100  69  PC 831     HZ
21  87  69   78.0   -3   0.0  13.0 0.00 0.0    0 158  1.7 023 15 0014 9959 100  51  SU 18      HZ
22  88  71   79.5   -2   0.0  14.5 0.00 0.0    0 158  2.9 158 20 9980 9873  97  60  PC 18      HZ
23  78  70   74.0   -5   0.0   9.0 0.36 0.0    0 158  2.9 158 24 9957 9873 100  81   C 1       SHRA
24  82  72   77.0   -3   0.0  12.0 0.07 0.0    0 045  2.0 045 15 0102 9926 100  80   C 1       SHRA
25  81  74   77.5   -2   0.0  12.5 0.77 0.0    0 045  2.5 045 15 0123 0076 100  87   C 13      TSRA
26  80  74   77.0   -2   0.0  12.0 0.27 0.0    0 045  2.3 045 16 0119 0011 100  88  PC 13      SHRA
27  88  74   81.0   +1   0.0  16.0    T 0.0    0 158  3.3 180 20 0031 9927 100  65  PC 13      SHRA
28  83  74   78.5   -2   0.0  13.5 0.01 0.0    0 158  2.3 180 21 0032 9956  99  80  PC 13      -TSRA
29  81  72   76.5   -3   0.0  11.5 0.65 0.0    0 158  2.0 180 20 0115 0016 100  82  PC 13      SHRA
30  88  73   80.5   +1   0.0  15.5 0.00 0.0    0 158  2.7 158 18 0146 0091 100  64  PC
31  90  75   82.5   +3   0.0  17.5 0.00 0.0    0 158  3.5 158 19 0122 0030 100  66  PC 
=============================================================================================================================
SM                       0.0 430.0 6.91 0.0    0 
================================================================================================================================
AV 86.2 71.6 78.9 -1.0            +1.57          150 2.22 128 18 0005 9898  98  65
===============================================================================================================================
NOTES:
WINDS IN M.P.H.
                      
 CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6) , PAGE 2

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

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

AVERAGE MAXIMUM: 86.2   TOTAL FOR MONTH:   6.91"           1 = FOG
AVERAGE MAX DEP: -2.3   DPTR FM NORMAL:   +1.57" OR 129%   2 = FOG REDUCING VISIBILITY  
AVERAGE MINIMUM: 71.6   GRTST 24HR  2.14" ON 18TH              TO 1/4 MILE OR LESS      
AVERAGE MIN DEP:  0.3   GRTST DAILY 2.14" ON 18TH          3 = THUNDER
AVERAGE MONTHLY: 78.9   SNOW, ICE PELLETS, GLAZE           4 = ICE PELLETS              
AVERAGE MON DEP: -1.0   TOTAL MONTH:  0.0"                 5 = HAIL                     
                        GRTST DAILY   0.0" ON --TH         6 = GLAZE OR RIME            
HIGHEST: 93 ON  7       GRTST 24HR    0.0" ON --TH         7 = BLOWING DUST OR SAND:    
LOWEST:  66 ON 16,17    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:  15 OR 48.39%
MAX 90 OR ABOVE:   4    0.10 INCH OR MORE:  10                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   5                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   2                                  

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL THIS MO.   0.0    CLEAR  (SCALE 0-3)   7     21 FOG                          
                        PTCLDY (SCALE 4-7)  21      0 DENSE FOG    [VSBY 1/4 MILE OR LESS]
SEASONAL      3282.5    CLOUDY (SCALE 8-10)  3     11 THUNDERSTORMS              
                                                   13 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    0 SNOW                         
TOTAL THIS MO. 426.0                                0 FROST
                        [PRESSURE DATA]                       [AVERAGE SKY COVER]
SEASONAL TOTAL 1095.5   HIGHEST SLP 30.164" ON THE 1ST                 43.87% 
                        LOWEST  SLP 29.634" ON THE 15TH       
                        AVERAGE SLP 29.953"
[STATION RECORDS]

16TH - TEMPERATURE - MINIMUM TIED 66 [PREVIOUSLY 1981]

YEAR-TO-DATE

[TEMPERATURE DATA]      [PRECIPITATION DATA]

AVERAGE MAXIMUM: 69.0   TOTAL FOR YEAR:   26.24"
AVERAGE MAX DEP: +0.3   DPTR FM NORMAL:   -1.94" OR  93%
AVERAGE MINIMUM: 51.0   GRTST 24HR  2.31" ON  6/25-26     
AVERAGE MIN DEP: +1.1   GRTST DAILY 2.14" ON  7/18                         
AVERAGE MONTHLY: 60.0   SNOW, ICE PELLETS, GLAZE
AVERAGE MON DEP: +0.7   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:  71  OR 33.33%
MAX 90 OR ABOVE:  11    0.10 INCH OR MORE:  49                                  
MIN 32 OR BELOW:  43    0.50 INCH OR MORE:  18                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   7

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL         2162.0    CLEAR  (SCALE 0-3)  48     94 FOG                          
                        PTCLDY (SCALE 4-7) 118      1 DENSE FOG    [VSBY 1/4 MILE OR LESS]
                        CLOUDY (SCALE 8-10) 47     25 THUNDERSTORMS              
                                                   28 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    8 SNOW                         
TOTAL         1095.5                                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