Portsmouth Weather Records Service
 

Local Climatological Data
*Data Is Subject to Correction by PWRS

Station:  PORTSMOUTH, VIRGINIA
Month:   DECEMBER Year: 2003
Latitude: 36 48 04 N    Longitude: 76 19 40 W
Station Elevation: 20 FT 
Standard Time: EST
 LOCAL CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6)

                                          STATION:   PORTSMOUTH, VIRGINIA
                                          MONTH:     DECEMBER  
                                          YEAR:      2003
                                          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  65  43   54.0   +5  11.0   0.0 0.00 0.0    0 270  7.3 270 25 0252 9948  49  31  SU         FROPA
 2  49  34   41.5   -7  23.5   0.0 0.00 0.0    0 315  6.0 293 25 0460 0252  61  28  SU         BREEZY COLDER
 3  43  29   36.0  -11  29.0   0.0 0.00 0.0    0 360  4.8 360 21 0607 0460  73  38  PC         COLD DRY
 4  46  29   37.5  -10  27.5   0.0 0.45 0.0    0 045  3.2 045 18 0558 0103  96  60   C 14      -RA COLD DAMP
 5  50  39   44.5   -2  20.5   0.0 0.41 0.0    0 293  5.9 045 19 0054 9810  99  94   C 1       RA -DZ FROPA
 6  40  33   36.5  -11  28.5   0.0    T   T    0 315  9.4 315 27 0016 9832  98  58  PC         -SHSN WINDY COLD
 7  45  29   37.0   -9  28.0   0.0 0.00 0.0    0 360  6.2 338 27 0118 9974  79  50  SU         -FROST BREEZY
 8  46  30   38.0   -8  27.0   0.0 0.00 0.0    0 360  4.4 360 21 0234 0112  82  41  SU
 9  54  27   40.5   -5  24.5   0.0 0.00 0.0    0 158  1.1 158 13 0289 0191  88  43  PC         FROST
10  60  37   48.5   +3  16.5   0.0 1.29 0.0    0 158  3.0 158 28 0181 9407  99  82   C 1       +SHRA
11  60  41   50.5   +6  14.5   0.0 0.13 0.0    0 270 10.7 270 31 9920 9338 100  53  PC 1       SHRA FROPA WINDY
12  49  32   40.5   -4  24.5   0.0 0.00 0.0    0 045  2.3 270 17 0273 9920  88  55  SU         COLDER
13  43  33   38.0   -8  27.0   0.0 0.00 0.0    0 045  5.8 045 21 0471 0234  90  56  PC         COLD
14  59  37   48.0   +2  17.0   0.0 1.77 0.0    0 270  6.3 270 24 0234 9656 100  81   C 1       RA DAMP FROPA
15  50  34   42.0   -4  23.0   0.0 0.00 0.0    0 270  6.0 293 26 0235 9730  96  55  SU
16  57  30   43.5   -1  21.5   0.0 0.00 0.0    0 158  3.5 203 16 0286 9986  95  47  PC 1       FROST
17  61  34   47.5   +4  17.5   0.0 0.46 0.0    0 158  6.7 315 31 9986 9523 100  75   C 1       SHRA BREEZY FROPA BREEZY
18  45  31   38.0   -5  27.0   0.0 0.00 0.0    0 270  6.0 270 23 9902 9769  81  52  PC         BREEZY
19  40  28   34.0   -9  31.0   0.0 0.02   T    T 270  2.5 360 18 9920 9758  92  69  PC 14      -SHRA-SHPL-SHSG-SHSN FROPA FROST
20  41  25   33.0  -10  32.0   0.0 0.00 0.0    0 270  3.0 293 22 0319 9906  91  48  PC 1       +FROST VIRGA COLD
21  46  24   35.0   -7  30.0   0.0 0.00 0.0    0 203  3.8 225 18 0502 0319  80  36  SU         DRY
22  59  37   48.0   +7  17.0   0.0 0.00 0.0    0 203  6.8 225 23 0337 0200  53  29  SU         DRY
23  67  40   53.5   +9  11.5   0.0 0.06 0.0    0 203  5.9 180 26 0220 9977  95  45  PC 1       -SHRA
24  64  46   55.0  +10  10.0   0.0 1.21 0.0    0 203  5.6 180 20 9977 9728 100  78  PC 1       SHRA FROPA
25  46  32   39.0   -1  26.0   0.0 0.00 0.0    0 360  4.6 270 19 0193 9901  86  43  SU         COLDER
26  48  27   37.5   -1  27.5   0.0 0.00 0.0    0 270  4.2 270 23 0313 0192  84  47  SU         FROST
27  54  29   41.5   +3  23.5   0.0 0.00 0.0    0 270  2.4 315 19 0299 0215  87  38  SU         FROST
28  55  28   41.5   -1  23.5   0.0 0.00 0.0    0 023  0.7 023 11 0422 0299  95  56  SU 12      FROST
29  66  31   48.5   +6  16.5   0.0 0.00 0.0    0 203  4.3 203 22 0322 0048  98  60  PC 12      FROST MILDER
30  62  37   49.5   +9  15.5   0.0    T 0.0    0 270  7.5 270 27 0321 9919  89  36  PC         SHRA FROPA BREEZY
31  56  31   43.5   +1  21.5   0.0 0.00 0.0    0 203  3.1 203 13 0433 0263  91  39  SU         FROST
===============================================================================================================================
SM                     693.5   0.0 5.80   T    T
================================================================================================================================
AV 52.5 32.8 42.6 -1.6             0.19          217  4.94       0248 9967  88  52
===============================================================================================================================
NOTES:
WINDS IN M.P.H.
                      
 CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6) , PAGE 2

                                          STATION:  PORTSMOUTH, VIRGINIA
                                          MONTH:    DECEMBER
                                          YEAR:     2003
                                          LATITUDE:   36 48 04 N                   
                                          LONGITUDE:  76 19 40 W                   

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

AVERAGE MAXIMUM: 52.5   TOTAL FOR MONTH:   5.80"           1 = FOG                      
AVERAGE MAX DEP: -0.3   DPTR FM NORMAL:   +2.76" OR 191%   2 = FOG REDUCING VISIBILITY  
AVERAGE MINIMUM: 32.8   GRTST 24HR  1.77" ON 14TH              TO 1/4 MILE OR LESS      
AVERAGE MIN DEP: -2.8   GRTST DAILY 1.77" ON 14TH          3 = THUNDER                  
AVERAGE MONTHLY: 42.6   SNOW, ICE PELLETS, GLAZE           4 = ICE PELLETS              
AVERAGE MON DEP: -1.6   TOTAL MONTH:  TRACE                5 = HAIL                     
                        GRTST DAILY  TRACE ON 19TH         6 = GLAZE OR RIME            
HIGHEST: 67 ON     23   GRTST 24HR   TRACE ON 19TH         7 = BLOWING DUST OR SAND:    
LOWEST:  24 ON     21   GRTST DEPTH: TRACE ON 19TH             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 29.03%
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   7                                  
MIN 32 OR BELOW:  17    0.50 INCH OR MORE:   3                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   3                                  

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL THIS MO. 693.5    CLEAR  (SCALE 0-3)  13     11 FOG                          
                        PTCLDY (SCALE 4-7)  13      2 DENSE FOG    [VSBY 1/4 MILE OR LESS]
SEASONAL      1120.5    CLOUDY (SCALE 8-10)  5      0 THUNDERSTORMS              
                                                    0 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    2 SNOW                         
TOTAL THIS MO.   0.0                               10 FROST
                        [PRESSURE DATA]                       [AVERAGE SKY COVER]
SEASONAL TOTAL 1542.0   HIGHEST SLP 30.607" ON THE  3RD              39.8%      
                        LOWEST  SLP 29.338" ON THE 11TH      
                        AVERAGE SLP 30.107"
[STATION RECORDS]

6TH -  TEMPERATURE - MINIMUM MAXIMUM TIED 40 [PREVIOUSLY 1997]
14TH - PRECIPITATION - 1.77" [PREVIOUSLY 1.07" 1977]
17TH - PRECIPITATION - 0.46" [PREVIOUSLY 0.21" 2000]
WETTEST DECEMBER IN DATABASE TO 1976 - 5.80" [PREVIOUSLY 5.70" 1981]

YEAR-TO-DATE

[TEMPERATURE DATA]      [PRECIPITATION DATA]

AVERAGE MAXIMUM: 68.4   TOTAL FOR YEAR:   65.52"
AVERAGE MAX DEP: -1.2   DPTR FM NORMAL:  +17.22" OR 136%                         
AVERAGE MINIMUM: 51.6   GRTST 24HR  4.08" ON  9/17-18                  
AVERAGE MIN DEP: +0.3   GRTST DAILY 4.05" ON  9/18                               
AVERAGE MONTHLY: 60.0   SNOW, ICE PELLETS, GLAZE
AVERAGE MON DEP: -0.4   TOTAL:          5.3                                     
                        GRTST DAILY   2.0 ON 1/16, 1/23
HIGHEST: 94 ON 6/25     GRTST 24HR    2.0 ON 1/16, 1/23
         94 ON 8/15     GRTST DEPTH:  2.0 on 1/16, 1/17, 1/23
         94 ON 8/27
LOWEST:  15 ON 1/23
               1/24

[NO. OF DAYS WITH]      [PRECIP  - DAYS WITH MEASURABLE]                        
                                                                                
MAX 32 OR BELOW:   3    0.01 INCH OR MORE: 149  OR 40.82%
MAX 90 OR ABOVE:  23    0.10 INCH OR MORE:  97                                  
MIN 32 OR BELOW:  54    0.50 INCH OR MORE:  42                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:  19                                  

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL         3333.0    CLEAR  (SCALE 0-3)  91    173 FOG                          
                        PTCLDY (SCALE 4-7) 208      9 DENSE FOG    [VSBY 1/4 MILE OR LESS]
                        CLOUDY (SCALE 8-10) 66     34 THUNDERSTORMS              
                                                   34 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                   15 SNOW                         
TOTAL         1542.0                               27 FROST                     
                        [PRESSURE DATA]                                         
                        HIGHEST SLP 30.635" ON THE  9TH OF NOVEMBER
                        LOWEST  SLP 29.150" ON THE 18TH OF SEPTEMBER
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