| Portsmouth
Weather Records Service
Local Climatological Data
|
Station:
PORTSMOUTH, VIRGINIA
Month: DECEMBER Year: 2004 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: DECEMBER
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 66 41 53.5 +4 11.5 0.0 0.02 0.0 0 203 7.8 270 39 0095 9766 90 39 PC SHRA WINDY FROPA
2 58 32 45.0 -3 20.0 0.0 0.00 0.0 0 158 0.8 160 18 0211 9918 91 41 SU -FROST
3 57 37 47.0 0 18.0 0.0 0.00 0.0 0 270 1.5 270 17 0072 9884 88 37 SU FROPA
4 58 34 46.0 -2 19.0 0.0 0.00 0.0 0 045 0.5 270 16 0158 0060 85 41 SU
5 62 36 49.0 +2 16.0 0.0 0.00 0.0 0 270 0.0 270 10 0267 0103 81 37 SU
6 61 44 52.5 +5 12.5 0.0 0.13 0.0 0 203 0.7 203 14 0274 0120 96 55 C 1 SHRA
7 72 54 63.0 +16 2.0 0.0 0.03 0.0 0 203 4.8 203 22 0120 9825 100 77 PC 1 SHRA WARMFROPA
8 70 47 58.5 +12 6.5 0.0 0.00 0.0 0 270 3.0 203 19 0181 9829 87 40 SU FROPA
9 64 46 55.0 +9 10.0 0.0 0.02 0.0 0 158 0.5 158 13 0163 9808 100 74 PC SHRA BR WARMFROPA
10 71 59 65.0 +19 0.0 0.0 1.24 0.0 0 203 1.6 293 20 9808 9451 100 82 PC 13 SHRA TSRA WARMFROPA
11 59 44 51.5 +7 13.5 0.0 0.07 0.0 0 225 3.7 225 27 9716 9466 95 72 PC FROPA SHRA
12 53 38 45.5 +1 19.5 0.0 0.00 0.0 0 270 3.1 225 19 9838 9716 82 55 PC
13 57 39 48.0 +2 17.0 0.0 T 0.0 0 270 5.9 270 32 0019 9703 72 31 PC -SHRA FROPA WINDY
14 44 32 38.0 -7 27.0 0.0 0.00 0.0 0 360 2.6 360 24 0327 0019 65 45 PC FROPA
15 39 27 33.0 -12 32.0 0.0 0.00 0.0 0 360 3.7 360 26 0527 0327 73 44 SU WINDY(AM) COLD
16 49 23 36.0 -8 29.0 0.0 0.00 0.0 0 225 0.0 270 10 0560 0333 85 35 SU FROST
17 54 33 43.5 0 21.5 0.0 0.00 0.0 0 225 0.0 225 13 0333 0234 62 33 SU
18 54 34 44.0 +1 21.0 0.0 0.00 0.0 0 045 1.5 045 13 0241 9852 92 64 PC
19 50 29 39.5 -3 25.5 0.0 0.02 T T 360 2.0 293 34 9939 9658 97 58 PC FROST SHRA FROPA SHSN WINDY(PM)
20 29 15 22.0 -20 43.0 0.0 0.08 0.8 0.8 360 5.8 338 34 0290 9765 84 39 PC SN BLSN WINDY VERY COLD
21 50 19 34.5 -7 30.5 0.0 0.00 0.0 T 225 3.4 225 22 0296 0161 60 34 SU
22 64 39 51.5 +10 13.5 0.0 0.00 0.0 0 158 0.9 158 15 0341 0162 83 40 PC
23 68 43 55.5 +11 9.5 0.0 0.18 0.0 0 180 7.1 180 35 0168 9784 100 75 C SHRA WINDY FROPA
24 42 33 37.5 -7 27.5 0.0 0.00 0.0 0 360 4.9 360 22 0232 0039 75 61 C WINDY COLDER
25 35 32 33.5 -6 31.5 0.0 0.00 0.0 0 045 4.8 360 24 0289 0172 77 55 C BREEZY COLD
26 37 27 32.0 -6 33.0 0.0 0.80 5.0 5.0 300 3.4 360 27 0236 9936 98 77 C 1 -RA +SN
27 33 26 29.5 -9 35.5 0.0 0.00 0.0 3.0 360 5.0 360 30 0658 0180 82 45 SU WINDY (AM) COLD
28 36 22 29.0 -13 36.0 0.0 0.00 0.0 2.0 158 4.0 360 5 0702 0440 78 55 SU COLD
29 53 32 42.5 0 22.5 0.0 0.00 0.0 T 225 0.8 248 16 0445 0264 69 45 SU MILDER
30 56 35 45.5 +4 19.5 0.0 0.00 0.0 0 045 0.2 045 12 0528 0346 90 52 PC
31 63 37 50.0 +7 15.0 0.0 0.00 0.0 0 225 0.2 225 10 0500 0370 100 61 PC BR FG
=============================================================================================================================
SM 638.5 0.0 2.59 5.8
==============================================================================================================================
AV 53.7 35.1 44.4 +0.2 -0.43 225 2.72 0243 9990 85 52
===============================================================================================================================
NOTES:
WINDS IN M.P.H.
CLIMATOLOGICAL DATA (WS-TYPE FORM: F-6) , PAGE 2
STATION: PORTSMOUTH, VIRGINIA
MONTH: DECEMBER
YEAR: 2004
LATITUDE: 36 48 04 N
LONGITUDE: 76 19 40 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN WX TYPES COLUMN
AVERAGE MAXIMUM: 53.7 TOTAL FOR MONTH: 2.59" 1 = FOG
AVERAGE MAX DEP: +0.9 DPTR FM NORMAL: -0.43" OR 86% 2 = FOG REDUCING VISIBILITY
AVERAGE MINIMUM: 35.1 GRTST 24HR 1.26" ON 9-10TH TO 1/4 MILE OR LESS
AVERAGE MIN DEP: -0.4 GRTST DAILY 1.24" ON 10TH 3 = THUNDER
AVERAGE MONTHLY: 44.4 SNOW, ICE PELLETS, GLAZE 4 = ICE PELLETS
AVERAGE MON DEP: +0.2 TOTAL MONTH: 5.8" 5 = HAIL
GRTST DAILY 5.0" ON 26TH 6 = GLAZE OR RIME
HIGHEST: 72 ON 7 GRTST 24HR 5.0" ON 26TH 7 = BLOWING DUST OR SAND:
LOWEST: 15 20 GRTST DEPTH: 5.0" ON 26TH VSBY ½ MILE OR LESS
8 = SMOKE OR HAZE
[NO. OF DAYS WITH] [PRECIP - DAYS WITH MEASURABLE] 9 = BLOWING SNOW
X = TORNADO
MAX 32 OR BELOW: 1 0.01 INCH OR MORE: 10 OR 32.26%
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 4
MIN 32 OR BELOW: 12 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. 638.5
CLEAR (SCALE 0-3) 12 6 FOG
PTCLDY (SCALE 4-7) 14 1 DENSE FOG [VSBY ¾ MILE OR LESS]
SEASONAL 1154.5 CLOUDY (SCALE 8-10) 5 1 THUNDERSTORMS
1 # OF THUNDERSTORMS
[CDD (BASE 65) ] 3 SNOW
TOTAL THIS MO. 0.0 3 FROST
[PRESSURE DATA] [AVERAGE SKY COVER]
SEASONAL TOTAL 1688.5 HIGHEST SLP 30.702" ON THE 28TH 39.84%
LOWEST SLP 29.451" ON THE 10TH
AVERAGE SLP 30.116"
[STATION RECORDS]
DECEMBER 2004 SNOWFALL MONTHLY MAXIMUM 5.8" [PREVIOULSY 1.7" 1993]
1ST - WIND GUST 39 MPH [ PREVIOUSLY 36 MPH IN 1996 ]
15TH - TEMPERATURE MINIMUM MAXIMUM 39° [ PREVIOUSLY 44° IN 1985 ]
19TH - SNOWFALL TIED TRACE [PREVIOUSLY TRACE 2003]
20TH - TEMPERATURE MINIMUM 15° [ PREVIOUSLY 16° 1981 ]
20TH - TEMPERATURE MINIMUM MAXIMUM 29° [PREVIOUSLY 33° IN 1981]
20TH - SNOWFALL 0.8" [PREVIOUSLY TRACE IN 1985 ]
23RD - WIND GUST 35 MPH [ PREVIOUSLY 32 MPH IN 1994 ]
26TH - SNOWFALL 5.0" [ NO PREVIOUS STATION RECORD ]
26TH - PRECIPITATION 0.80" [ PREVIOUSLY 0.46" IN 1976 ]
27TH - WIND GUST 30 MPH [ PREVIOUSLY 23 MPH IN 1977 ]
27TH - TEMPERATURE MINIMUM MAXIMUM TIED 33° [ PREVIOUSLY IN 1989 ]
28TH - TEMPERATURE MINIMUM 22° [ PREVIOUSLY 23° IN 1977 ]
YEAR-TO-DATE
[TEMPERATURE DATA] [PRECIPITATION DATA]
AVERAGE MAXIMUM: 69.0 TOTAL FOR YEAR: 49.56"
AVERAGE MAX DEP: -0.5 DPTR FM NORMAL: + 1.36 OR 103%
AVERAGE MINIMUM: 52.1 GRTST 24HR 2.99" ON 8/14-15
AVERAGE MIN DEP: +0.8 GRTST DAILY 2.95" ON 8/14
AVERAGE MONTHLY: 60.6 SNOW, ICE PELLETS, GLAZE
AVERAGE MON DEP: +0.2 TOTAL: 12.3"
GRTST DAILY 5.0" ON DECEMBER 26TH
HIGHEST: 93 ON 6/18 GRTST 24HR 5.0" ON DECEMBER 26TH
7/07 GRTST DEPTH: 5.0" ON DECEMBER 26TH
LOWEST: 15 ON 12/20
[NO. OF DAYS WITH] [PRECIP - DAYS WITH MEASURABLE]
MAX 32 OR BELOW: 4 0.01 INCH OR MORE: 122 OR 33.33%
MAX 90 OR ABOVE: 13 0.10 INCH OR MORE: 82
MIN 32 OR BELOW: 57 0.50 INCH OR MORE: 31
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 13
[HDD (BASE 65) ] [# DAYS WITH]
TOTAL 3316.5 CLEAR (SCALE 0-3) 98 167 FOG
PTCLDY (SCALE 4-7) 196 4 DENSE FOG [VSBY ¾ MILE OR LESS]
CLOUDY (SCALE 8-10) 72 36 THUNDERSTORMS
39 # OF THUNDERSTORMS
[CDD (BASE 65) ] 11 SNOW
TOTAL 1688.5 12 FROST
[PRESSURE DATA]
HIGHEST SLP 30.736" ON NOVEMBER 14TH
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
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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)
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