055  
CXAK58 PAKN 020039  
CLMAKN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ANCHORAGE, AK  
336 PM AKST MON JAN 1 2018  
   
...............................
 
 
   
..THE KING SALMON CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1917 TO 2017  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 54 12/06/2013  
LOW -38 12/19/2001  
12/17/1942  
HIGHEST 44 MM MM 46  
LOWEST 5 MM MM -23  
AVG. MAXIMUM 37.0 26.4 10.6 26.3  
AVG. MINIMUM 24.5 10.8 13.7 11.4  
MEAN 30.7 18.6 12.1 18.8  
DAYS MAX >= 90 0 0.0 0.0 0  
DAYS MAX <= 32 6 16.2 -10.2 17  
DAYS MIN <= 32 27 27.2 -0.2 28  
DAYS MIN <= 0 0 9.0 -9.0 10  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM MM MM  
MINIMUM MM MM  
TOTALS 1.81 1.23 0.58 1.09  
DAILY AVG. 0.06 0.04 0.02 0.04  
DAYS >= .01 13 12.3 0.7 14  
DAYS >= .10 7 4.1 2.9 6  
DAYS >= .50 0 0.2 -0.2 0  
DAYS >= 1.00 0 0.0 0.0 0  
GREATEST  
24 HR. TOTAL 0.37 12/15 TO 12/15 12/29 TO 12/29  
12/05 TO 12/05  
12/05 TO 12/05  
STORM TOTAL MM MM  
(MM/DD(HH)) MM 12/29(00) TO 12/29(00)  
12/05(00) TO 12/05(00)5  
12/05(00) TO 12/05(00)5  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL MM MM  
24 HR TOTAL MM  
SNOW DEPTH MM MM  
TOTALS 2.9 9.5 -6.6 5.5  
SINCE 7/1 8.1 19.3 -11.2 10.1  
SNOWDEPTH AVG. 0 3 -3 2  
DAYS >= TRACE 9 8.8 0.2 18  
DAYS >= 1.0 1 3.0 -2.0  
GREATEST  
SNOW DEPTH 1 12/20 5 12/10  
12/19 12/09  
12/18 12/08  
24 HR TOTAL 1.2 12/04 TO 12/04 12/05 TO 12/05  
12/05 TO 12/05  
12/05 TO 12/05  
STORM TOTAL MM MM  
(MM/DD(HH)) MM  
 
DEGREE_DAYS  
HEATING TOTAL 1055 1438 -383 1422  
SINCE 7/1 3991 4815 -824 4148  
COOLING TOTAL 0 0 0 0  
SINCE 1/1 1 1 0 0  
 
FREEZE DATES  
RECORD  
EARLIEST MM  
LATEST MM  
EARLIEST MM  
LATEST MM    
..................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 10.7  
RESULTANT WIND SPEED/DIRECTION 7/094  
HIGHEST WIND SPEED/DIRECTION 45/100 DATE 12/23  
HIGHEST GUST SPEED/DIRECTION 62/100 DATE 12/31  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.60  
NUMBER OF DAYS FAIR 7  
NUMBER OF DAYS PC 13  
NUMBER OF DAYS CLOUDY 11  
 
AVERAGE RH (PERCENT) 89  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 MIXED PRECIP 0  
HEAVY RAIN 0 RAIN 4  
LIGHT RAIN 11 FREEZING RAIN 0  
LT FREEZING RAIN 1 HAIL 0  
HEAVY SNOW 0 SNOW 1  
LIGHT SNOW 10 SLEET 0  
FOG 23 FOG W/VIS <= 1/4 MILE 6  
HAZE 0  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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