Portsmouth Weather Records Service
 

Local Climatological Data
*Data Is Subject to Correction by PWRS

Station:  PORTSMOUTH, VIRGINIA
Month:   JANUARY Year: 2005
Latitude: 36 48 04 N    Longitude: 76 19 37 W
Station Elevation: 20 FT 
Standard Time: EST
 LOCAL CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6)

                                          STATION:   PORTSMOUTH, VIRGINIA
                                          MONTH:     JANUARY
                                          YEAR:      2005
                                          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  70  46   58.0  +14   7.0   0.0  0.00 0.0    0 360  0.0        0482 0342  93  58  PC 1       MILD
 2  63  44   53.5  +11  11.5   0.0  0.00 0.0    0 023  0.0 360  5 0560 0470  99  65  PC 1       FROP
 3  70  46   58.0  +14   7.0   0.0  0.00 0.0    0 180  3.0 080 15 0470 0260 100  61  PC 1       MILD
 4  73  55   64.0  +21   1.0   0.0  0.00 0.0    0 270  1.5 200 19 0270 0158  83  61  PC         MILD
 5  71  48   59.5  +19   5.5   0.0  0.00 0.0    0 130  3.0 250 23 0159 9979  99  60  PC 1       FROPA
 6  74  49   61.5  +20   3.5   0.0  0.00 0.0    0 203  5.9 203 32 9983 9822 100  61  PC 1       BREEZY
 7  65  45   55.0  +12  10.0   0.0  0.00 0.0    0 023  2.7 023 19 0362 9936  80  53  PC         FROPA
 8  70  47   58.5  +18   6.5   0.0  0.01 0.0    0 203  3.3 045 26 0349 0052  98  67  PC 1       SHRA FROPA
 9  48  37   42.5   +3  22.5   0.0  0.00 0.0    0 045  0.3 045 18 0447 0286  92  70  PC 1       COLDER
10  61  35   48.0   +9  17.0   0.0  0.00 0.0    0 203  0.8 210 17 0285 0075 100  64  PC 1
11  56  37   46.5   +9  18.5   0.0  0.00 0.0    0 070  0.0 070  6 0304 0127  99  65  PC 1
12  71  44   57.5  +18   7.5   0.0  0.00 0.0    0 203  1.4 158 15 0219 0111 100  66  PC 1
13  75  61   68.0  +26   0.0   3.0  0.00 0.0    0 180  9.1 180 29 0203 9987  92  69  PC         BREEZY WARM
14  70  42   56.0  +16   9.0   0.0  1.52 0.0    0 360 12.1 360 31 0478 9874  97  67  PC 1       SHRA BR WINDY RA FROPA
15  42  36   39.0   -1  26.0   0.0  0.00 0.0    0 023 10.5 023 28 0686 0470  78  55  PC         BREEZY COLDER
16  40  36   38.0    0  27.0   0.0  0.03 0.0    0 023  9.9 023 27 0578 0164  92  78   C 1       SHRA BREEZY FROPA
17  36  21   28.5   -9  36.5   0.0     T   T    T 360  8.7 340 27 0544 0211  86  37  PC         SHSG WINDY COLDER
18  28  18   23.0  -16  42.0   0.0  0.00 0.0    0 360  9.2 360 30 0717 0539  46  35  SU         VERY COLD DRY
19  30  16   23.0  -14  42.0   0.0  0.03 0.5  0.5 203  5.2 225 21 0604 0042  84  40  PC         FROST -SN
20  40  26   33.0   -5  32.0   0.0     T   T    T 023  2.8 270 16 0042 9963  84  64  PC         FROPA -SN
21  34  25   29.5   -7  35.5   0.0  0.04 0.8  0.8 023  6.5 023 26 0301 9966  94  54  PC 1       -SN -SHSN FROPA
22  37  22   29.5   -8  35.5   0.0  0.32   T    T 045  3.2 315 21 0301 9580  98  62   C 13      VIRGA -SHSN -SHSG RA TSRA FROP 
23  33  19   26.0  -14  39.0   0.0     T   T    T 340 11.3 315 36 0214 9608  96  52  PC         -SHSN WINDY COLD
24  35  17   26.0  -16  39.0   0.0  0.00   0    0 315  6.8 315 29 0326 9926  56  34  PC
25  46  28   37.0   -3  28.0   0.0  0.00   0    0 158  4.3 158 17 0049 9863  81  41  PC
26  58  33   45.5   +7  19.5   0.0     T   0    0 203  5.7 270 17 9895 9625  83  47  PC         -SHRA FROPA
27  41  23   32.0   -7  33.0   0.0  0.00   0    0 023 11.9 023 33 0639 9895  77  53  SU         WINDY COLD
28  28  20   24.0  -15  41.0   0.0  0.00   0    0 023  9.3 023 26 0789 0638  66  54  SU         WINDY AM VERY COLD
29  40  22   31.0   -9  34.0   0.0  0.03   0    0 045  3.2 045 17 0699 0201  92  61  PC 4       -FROST -PL -RA
30  40  32   36.0   -5  29.0   0.0  0.80   0    0 360  7.1 360 29 0201 9940  99  70   C 14      RA DZ FROPA
31  39  32   35.5   -5  29.5   0.0  0.00   0    0 023 10.3 360 28 0377 0086  84  68  PC         WINDY COLD
=============================================================================================================================
SM                     695.0   3.0  2.78 1.3     
==============================================================================================================================
AV 51.1 34.3 42.7 +2.7             -1.11          162  5.45       0381 0074  88  58
===============================================================================================================================
NOTES:
WINDS IN M.P.H.
                      
 CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6) , PAGE 2

                                          STATION:  PORTSMOUTH, VIRGINIA
                                          MONTH:    JANUARY
                                          YEAR:     2005
                                          LATITUDE:   36 48 04 N                   
                                          LONGITUDE:  76 19 40 W                   

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

AVERAGE MAXIMUM: 51.1   TOTAL FOR MONTH:   2.78"           1 = FOG
AVERAGE MAX DEP: +2.6   DPTR FM NORMAL:   -1.11" OR 72%    2 = FOG REDUCING VISIBILITY
AVERAGE MINIMUM: 34.3   GRTST 24HR  1.52" ON  14TH             TO 1/4 MILE OR LESS
AVERAGE MIN DEP: +2.7   GRTST DAILY 1.52" ON  14TH         3 = THUNDER
AVERAGE MONTHLY: 42.7   SNOW, ICE PELLETS, GLAZE           4 = ICE PELLETS              
AVERAGE MON DEP: +2.7   TOTAL MONTH:   1.3"                5 = HAIL
                        GRTST DAILY    0.8" ON 21          6 = GLAZE OR RIME            
HIGHEST: 75 ON   13     GRTST 24HR     0.8" ON 21          7 = BLOWING DUST OR SAND:    
LOWEST:  16      19     GRTST DEPTH:   0.8" ON 21              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:   3    0.01 INCH OR MORE:   8 OR 25.81%
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3                                  
MIN 32 OR BELOW:  14    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. 695.0 
                        CLEAR  (SCALE 0-3)   3     15 FOG
                        PTCLDY (SCALE 4-7)  25      0 DENSE FOG    [VSBY  MILE OR LESS]
SEASONAL      1849.5    CLOUDY (SCALE 8-10)  3      1 THUNDERSTORMS
                                                    1 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    6 SNOW                         
TOTAL THIS MO.   3.0                                2 FROST
                        [PRESSURE DATA]                       [AVERAGE SKY COVER]
SEASONAL TOTAL   3.0    HIGHEST SLP 30.789" ON THE 28TH                 50.81% 
                        LOWEST  SLP 29.580" ON THE 22ND 
                        AVERAGE SLP 30.227"                   [AVERAGE RELATIVE HUMIDITY]
[STATION RECORDS]                                                       72.87%

12TH TEMPERATURE MAXIMUM 71 [PREVIOUSLY 65 1995] 
13TH TEMPERATURE MAXIMUM 75 [PREVIOUSLY 74 1995]
13TH TEMPERATURE MAXIMUM MINIMUM 61 [PREVIOUSLY 50 1992]
14TH PRECIPITATION DAILY 1.52" [PREVIOUSLY 0.67" 1980]
19TH SNOWFALL DAILY 0.5" [PREVIOUSLY TRACE 1994]
21ST SNOWFALL DAILY TIED 0.8" [PREVIOUSLY IN 1994]
23RD WIND GUST MAXIMUM 36 MPH [PREVIOUSLY 34 MPH 1992]
24TH TEMPERATURE MINIMUM MAXIMUM 35 [PREVIOUSLY 36 2000]

YEAR-TO-DATE

[TEMPERATURE DATA]      [PRECIPITATION DATA]

AVERAGE MAXIMUM: 51.1   TOTAL FOR YEAR:    2.78"
AVERAGE MAX DEP: +2.6   DPTR FM NORMAL:   -1.11 OR 72%
AVERAGE MINIMUM: 34.3   GRTST 24HR  1.52" ON  JANUARY 14TH
AVERAGE MIN DEP: +2.7   GRTST DAILY 1.52" ON  JANUARY 14TH                 
AVERAGE MONTHLY: 42.7   SNOW, ICE PELLETS, GLAZE
AVERAGE MON DEP: +2.7   TOTAL:           1.3"                                   
                        GRTST DAILY   0.8" ON  1/21           
HIGHEST: 75 ON  1/13    GRTST 24HR    0.8" ON  1/21 
                        GRTST DEPTH:  0.8" ON  1/21            
LOWEST:  16 ON  1/19 

[NO. OF DAYS WITH]      [PRECIP  - DAYS WITH MEASURABLE]                        
                                                                                
MAX 32 OR BELOW:   3    0.01 INCH OR MORE:   8  OR 25.81%
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3                                  
MIN 32 OR BELOW:  14    0.50 INCH OR MORE:   2                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL          695.0    CLEAR  (SCALE 0-3)   3     15 FOG                          
                        PTCLDY (SCALE 4-7)  25      0 DENSE FOG    [VSBY  MILE OR LESS]
                        CLOUDY (SCALE 8-10)  3      1 THUNDERSTORMS              
                                                    1 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    6 SNOW                         
TOTAL            3.0                                2 FROST                     
                        [PRESSURE DATA]                                         
                        HIGHEST SLP 30.789" ON JANUARY 28TH     
                        LOWEST  SLP 29.580" ON JANUARY 22ND         
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