496
CXAK58 PACD 012133 CCA
CLMCDB
CLIMATE REPORT
NATIONAL WEATHER SERVICE ANCHORAGE, AK
621 AM AKST TUE JAN 1 2019
...............................
..THE COLD BAY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1942 TO 2018
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 54 12/11/1990
12/24/1973
LOW -9 12/29/1950
HIGHEST 45 MM MM 50
LOWEST 14 MM MM 13
AVG. MAXIMUM 34.9 35.6 -0.7 38.6
AVG. MINIMUM 25.7 26.6 -0.9 28.1
MEAN 30.3 31.1 -0.8 33.4
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 10 7.2 2.8 2
DAYS MIN <= 32 26 21.4 4.6 21
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM MM MM
MINIMUM MM MM
TOTALS 4.71 4.46 0.25 4.63
DAILY AVG. 0.15 0.14 0.01 0.15
DAYS >= .01 22 23.6 -1.6 23
DAYS >= .10 12 11.7 0.3 13
DAYS >= .50 4 2.2 1.8 1
DAYS >= 1.00 0 0.7 -0.7 1
GREATEST
24 HR. TOTAL 0.78 12/29 TO 12/29 12/22 TO 12/22
12/22 TO 12/22EATHER OBSERVED NORMAL DEPART LAST YEAR'S
12/22 TO 12/22EATHER OBSERVED NORMAL DEPART LAST YEAR'S
STORM TOTAL MM MM
(MM/DD(HH)) MM 12/22(00) TO 12/22(00)
12/22(00) TO 12/22(00)2EATHER OBSERVED NORMAL DEPART LAST YEAR'S
12/22(00) TO 12/22(00)2EATHER OBSERVED NORMAL DEPART LAST YEAR'S
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
24 HR TOTAL MM
SNOW DEPTH MM MM
TOTALS 21.5 12.6 8.9 20.8
SINCE 7/1 24.7 25.2 -0.5 23.0
SNOWDEPTH AVG. 2 3 -1 2
DAYS >= TRACE 22 14.1 7.9 19
DAYS >= 1.0 7 4.9 2.1
GREATEST
SNOW DEPTH 5 12/19 10 12/22
24 HR TOTAL 4.0 12/09 TO 12/09 12/22 TO 12/22
12/22 TO 12/22EATHER OBSERVED NORMAL DEPART LAST YEAR'S
12/22 TO 12/22EATHER OBSERVED NORMAL DEPART LAST YEAR'S
STORM TOTAL MM MM
(MM/DD(HH)) MM
DEGREE_DAYS
HEATING TOTAL 1065 1051 14 970
SINCE 7/1 3607 4071 -464 3693
COOLING TOTAL 0 0 0 0
SINCE 1/1 0 0 0 0
FREEZE DATES
RECORD
EARLIEST MM
LATEST MM
EARLIEST MM
LATEST MM
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WIND (MPH)
AVERAGE WIND SPEED 18.2
RESULTANT WIND SPEED/DIRECTION 5/347
HIGHEST WIND SPEED/DIRECTION 67/150 DATE 12/29
HIGHEST GUST SPEED/DIRECTION 79/150 DATE 12/29
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.70
NUMBER OF DAYS FAIR 2
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 17
AVERAGE RH (PERCENT) 82
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 10
HEAVY RAIN 0 RAIN 7
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RIAN 2 HAIL 0
HEAVY SNOW 5 SNOW 9
LIGHT SNOW 2 SLEET 0
FOG 24 FOG W/VIS <= 1/4 MILE 8
HAZE 9
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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