Portsmouth Weather Records Service
 

Local Climatological Data
*Data Is Subject to Correction by PWRS

Station:  PORTSMOUTH, VIRGINIA
Month:   APRIL 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:     APRIL
                                          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  60  49   54.5   -1  10.5   0.0  0.07   0    0 045  4.2 023 19 0086 9774 100  81   C 1      SHRA                                   
 2  67  48   57.5   +1   7.5   0.0  0.92   0    0 203  9.7 203 33 9774 9217 100  61   C 1      WARMFROPA SHRA FROPA
 3  64  45   54.5   -3  10.5   0.0  0.00   0    0 270 12.2 270 40 9810 9394  66  28  PC        WINDY
 4  73  45   59.0   +3   6.0   0.0  0.00   0    0 270  5.9 270 30 0051 9810  58  27  SU        
 5  73  42   57.5   +2   7.5   0.0  0.00   0    0 045  3.7 158 18 0268 0051  81  23  SU
 6  84  53   68.5  +13   0.0   3.5  0.00   0    0 203  7.5 225 23 0227 0115  87  32  SU
 7  78  59   68.5  +12   0.0   3.5     T   0    0 203  9.1 180 34 0136 9848  83  54  PC        -SHRA
 8  67  50   58.5   +1   6.5   0.0  0.49   0    0 045  4.3 180 25 9972 9930  97  81   C 1      SHRA FROPA DZ
 9  60  48   54.0   -3  11.0   0.0  0.00   0    0 045 11.3 045 32 0072 9928  97  44  PC        WINDY 
10  68  46   57.0   +2   8.0   0.0  0.00   0    0 023  6.0 023 24 0108 0021  73  34  SU
11  69  43   56.0    0   9.0   0.0  0.00   0    0 045  4.8 045 24 0101 0031  86  38  SU        FROPA
12  55  42   48.5  -10  16.5   0.0  0.34   0    0 045  3.1 045 18 0088 9930  95  48   C 1      SHRA
13  48  43   45.5  -13  19.5   0.0  0.44   0    0 045  9.0 023 29 9934 9821  97  62   C 1      SHRA RA DAMP
14  57  43   50.0   -8  15.0   0.0  0.00   0    0 045 10.5 023 30 0052 9924  72  47  SU        BREEZY
15  51  43   47.0  -13  18.0   0.0  0.00   0    0 045 15.1 045 47 0402 0052  80  51  PC        WINDY
16  55  43   49.0  -11  16.0   0.0  0.00   0    0 045 11.8 045 33 0459 0354  73  43  PC        WINDY
17  69  41   55.0   -5  10.0   0.0  0.00   0    0 023  4.4 023 18 0406 0109  73  23  SU
18  80  46   63.0   +5   2.0   0.0  0.00   0    0 203  3.7 023 15 0194 0092  68  28  SU
19  85  53   69.0   +9   0.0   4.0  0.00   0    0 158  2.8 023 15 0123 0018  80  30  SU        AFT SEABREEZE
20  88  59   73.5  +12   0.0   8.5  0.00   0    0 203  4.4 270 21 0040 9856  80  31  SU 8      HZ
21  78  54   66.0   +4   0.0   1.0  0.00   0    0 045  5.2 045 22 9990 9833  87  46  PC        FROPA
22  72  53   62.5   +1   2.5   0.0  0.03   0    0 045  4.9 180 22 9990 9665  92  55  PC 8      HZ SEABREEZE
23  75  52   63.5   +2   1.5   0.0  0.33   0    0 203  8.1 203 36 9665 9322  90  59  PC 3      DSTLTG TSRA FROPA
24  55  43   49.0  -12  16.0   0.0     T   0    0 270  7.9 270 30 9647 9480  80  40  PC        BREEZY -SHRA
25  66  41   53.5   -7  11.5   0.0  0.00   0    0 270  7.4 270 29 9877 9648  73  34  SU
26  66  51   58.5   -3   6.5   0.0  0.21   0    0 158  5.4 180 19 9963 9785  94  48  PC        SHRA
27  73  59   66.0   +4   0.0   1.0  0.01   0    0 270  5.0 270 22 9855 9677  99  34  PC 1      SHRA FROPA
28  69  49   59.0   -3   6.0   0.0  0.00   0    0 270  4.0 270 25 0050 9855  72  34  PC
29  62  57   59.5   -2   5.5   0.0  0.10   0    0 203  3.3 203 14 0052 9960  96  56   C 1      SHRA
30  80  60   70.0   +7   0.0   5.0     T   0    0 180  8.1 206 26 9960 9743  94  53  PC        -SHRA
==============================================================================================================================
SUM                    223.0  26.5  2.94 0.0               
==============================================================================================================================
AV 68.2 48.7 58.5  -0.6            -0.51          137  6.76 
==============================================================================================================================
NOTES:
WINDS IN M.P.H.
                      
 CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6) , PAGE 2

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

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

AVERAGE MAXIMUM: 68.2   TOTAL FOR MONTH:   2.94"           1 = FOG
AVERAGE MAX DEP: -1.4   DPTR FM NORMAL:   -0.51" OR  85%   2 = FOG REDUCING VISIBILITY
AVERAGE MINIMUM: 48.7   GRTST 24HR  0.99" ON  1ST-2ND          TO 1/4 MILE OR LESS
AVERAGE MIN DEP: +0.2   GRTST DAILY 0.92" ON  2ND          3 = THUNDER
AVERAGE MONTHLY: 58.5   SNOW, ICE PELLETS, GLAZE           4 = ICE PELLETS              
AVERAGE MON DEP: -0.6   TOTAL MONTH:  0.0"                 5 = HAIL
                        GRTST DAILY   0.0"  ON ---         6 = GLAZE OR RIME            
HIGHEST: 88 ON   20     GRTST 24HR    0.0"  ON ---         7 = BLOWING DUST OR SAND:    
LOWEST:  41 ON 17,25    GRTST DEPTH:  0.0"  ON ---             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:   7                                  
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. 223.0 
                        CLEAR  (SCALE 0-3)  11      6 FOG
                        PTCLDY (SCALE 4-7)  13      0 DENSE FOG    [VSBY  MILE OR LESS]
SEASONAL      4252.5    CLOUDY (SCALE 8-10)  6      1 THUNDERSTORMS
                                                    1 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                    0 SNOW                         
TOTAL THIS MO.  25.5                                0 FROST
                        [PRESSURE DATA]                       [AVERAGE SKY COVER]
SEASONAL TOTAL  23.5    HIGHEST SLP 30.459" ON THE 16TH                 39.67% 
                        LOWEST  SLP 29.217" ON THE  2ND 
                        AVERAGE SLP 29.946"                   [AVERAGE RELATIVE HUMIDITY]
[STATION RECORDS]                                                       65.00%

 2ND - DAILY PRECIPITATION - 0.92" [PREVIOUS 0.79" 1990]
15TH - TEMPERATURE - MINIMUM MAXIMUM - 51 [PREVIOUS 59 1989]
15TH - WIND - MAXIMUM GUST - 47 MPH  [PREVIOUS 40 MPH 1996]
16TH - TEMPERATURE - MINIMUM MAXIMUM - 55 [PREVIOUS 56 1978]

YEAR-TO-DATE

[TEMPERATURE DATA]      [PRECIPITATION DATA]

AVERAGE MAXIMUM: 56.5   TOTAL FOR YEAR:   11.16"
AVERAGE MAX DEP: -1.0   DPTR FM NORMAL:   -3.61 OR 76%
AVERAGE MINIMUM: 38.7   GRTST 24HR  1.52" ON  JANUARY 14TH
AVERAGE MIN DEP: +0.2   GRTST DAILY 1.52" ON  JANUARY 14TH                 
AVERAGE MONTHLY: 47.4   SNOW, ICE PELLETS, GLAZE
AVERAGE MON DEP: -0.4   TOTAL:           2.5"                                   
                        GRTST DAILY   0.8" ON  1/21           
HIGHEST: 88 ON  4/20    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:  39  OR 32.50%
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  22                                  
MIN 32 OR BELOW:  35    0.50 INCH OR MORE:   8                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]                                   [# DAYS WITH]
TOTAL         2114.0    CLEAR  (SCALE 0-3)  26     44 FOG                          
                        PTCLDY (SCALE 4-7)  73      0 DENSE FOG    [VSBY  MILE OR LESS]
                        CLOUDY (SCALE 8-10) 21      4 THUNDERSTORMS              
                                                    4 # OF THUNDERSTORMS
[CDD (BASE 65) ]                                   14 SNOW                         
TOTAL           28.5                               11 FROST                     
                        [PRESSURE DATA]                                         
                        HIGHEST SLP 30.789" ON JANUARY 28TH     
                        LOWEST  SLP 29.029" ON MARCH 8TH             
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