AFOS product CLICDB
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CDAK48 PAFC 181257
CLICDB


CLIMATE REPORT
NATIONAL WEATHER SERVICE ANCHORAGE, AK                               
356 AM AKST MON DEC 18 2017


................................... 

...THE COLD BAY CLIMATE SUMMARY FOR DECEMBER 17 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1942 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         36    908 AM  49    1971  36      0       40       
  MINIMUM         27   1016 PM   0    1973  27      0       27       
  AVERAGE         32                        31      1       34      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             1.17 1970   0.14  -0.14     0.12    
  MONTH TO DATE    1.52                      2.68  -1.16     3.55    
  SINCE SEP 1     14.45                     17.15  -2.70    20.25    
  SINCE JAN 1     34.01                     39.89  -5.88    39.55    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        T             5.4  2006   0.4   -0.4       T      
  MONTH TO DATE    3.6                       6.9   -3.3     11.6     
  SINCE SEP 1      5.8                      19.5  -13.7     13.4     
  SINCE JUL 1      5.8                      19.5  -13.7     13.4     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       33                        34     -1       31       
  MONTH TO DATE  515                       563    -48      553       
  SINCE DEC 1    515                       563    -48      553       
  SINCE JUL 1   3238                      3583   -345     2903       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  21   RESULTANT WIND DIRECTION  NW (300)      
  HIGHEST WIND SPEED    41   HIGHEST WIND DIRECTION    NW (300)      
  HIGHEST GUST SPEED    49   HIGHEST GUST DIRECTION    NW (300)      
  AVERAGE WIND SPEED    22.7                                         


                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  LIGHT SNOW                                                         
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    89                                                       
 LOWEST     64                                                       
 AVERAGE    77                                                       

..........................................................

                                                                     
THE COLD BAY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   35        47      1951                    
 MINIMUM TEMPERATURE (F)   26         3      1942                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 18 2017......SUNRISE  1014 AM AKST  SUNSET   522 PM AKST  
DECEMBER 19 2017......SUNRISE  1014 AM AKST  SUNSET   522 PM AKST  

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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