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319 
CDAK48 PAFC 211251
CLIANC

CLIMATE REPORT
NATIONAL WEATHER SERVICE ANCHORAGE, AK                               
347 AM AKST THU DEC 21 2017


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

...THE ANCHORAGE AK CLIMATE SUMMARY FOR DECEMBER 20 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1952 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         35    253 PM  47    1969  25     10       21       
  MINIMUM         20   1159 PM -20    1957  13      7       12       
  AVERAGE         28                        19      9       17      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.52 1999   0.04  -0.04             
  MONTH TO DATE    0.43                      0.75  -0.32             
  SINCE SEP 1      6.70                      6.93  -0.23             
  SINCE JAN 1     18.64                     16.22   2.42             
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          12.2  1999   0.5   -0.5       T      
  MONTH TO DATE    1.0                      11.1  -10.1     12.4     
  SINCE SEP 1      9.3                      32.5  -23.2     16.3     
  SINCE JUL 1      9.3                      32.5  -23.2     16.3     
  SNOW DEPTH       3                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       37                               -9                
  MONTH TO DATE  661                             -252                
  SINCE DEC 1    661                             -252                
  SINCE JUL 1   3535                             -542                
                                                                     
 COOLING                                                             
  YESTERDAY        0                                0                
  MONTH TO DATE    0                                0                
  SINCE DEC 1      0                                0                
  SINCE JAN 1      3                                1                
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (180)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (170)      
  AVERAGE WIND SPEED     7.4                                         



                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96                                                       
 LOWEST     64                                                       
 AVERAGE    80                                                       

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

                                                                     
THE ANCHORAGE AK CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   25        43      1999                    
 MINIMUM TEMPERATURE (F)   13       -17      1956                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 21 2017......SUNRISE  1014 AM AKST  SUNSET   343 PM AKST  
DECEMBER 22 2017......SUNRISE  1015 AM AKST  SUNSET   343 PM AKST  

CIVIL TWILIGHT
DECEMBER 21 2017        START    913 AM GMT     END    445 PM GMT
DECEMBER 22 2017        START    913 AM GMT     END    446 PM GMT


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




$$
&&
------------------------------------------------------
AMOUNT OF DAYLIGHT TODAY  (HOUR:MIN)........ 5:28   
GAIN/LOSS SINCE YESTERDAY (HOUR:MIN:SEC)....-0:00:03
396 
CDAK48 PAFC 211248
CLIANC


CLIMATE REPORT
NATIONAL WEATHER SERVICE ANCHORAGE, AK                               
347 AM AKST THU DEC 21 2017


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

...THE ANCHORAGE AK CLIMATE SUMMARY FOR DECEMBER 20 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1952 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         35    253 PM  47    1969  25     10       21       
  MINIMUM         20   1159 PM -20    1957  13      7       12       
  AVERAGE         28                        19      9       17      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.52 1999   0.04  -0.04             
  MONTH TO DATE    0.43                      0.75  -0.32             
  SINCE SEP 1      6.70                      6.93  -0.23             
  SINCE JAN 1     18.64                     16.22   2.42             
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          12.2  1999   0.5   -0.5       T      
  MONTH TO DATE    1.0                      11.1  -10.1     12.4     
  SINCE SEP 1      9.3                      32.5  -23.2     16.3     
  SINCE JUL 1      9.3                      32.5  -23.2     16.3     
  SNOW DEPTH       3                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       37                               -9                
  MONTH TO DATE  661                             -252                
  SINCE DEC 1    661                             -252                
  SINCE JUL 1   3535                             -542                
                                                                     
 COOLING                                                             
  YESTERDAY        0                                0                
  MONTH TO DATE    0                                0                
  SINCE DEC 1      0                                0                
  SINCE JAN 1      3                                1                
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (180)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (170)      
  AVERAGE WIND SPEED     7.4                                         



                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96                                                       
 LOWEST     64                                                       
 AVERAGE    80                                                       

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

                                                                     
THE ANCHORAGE AK CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   25        43      1999                    
 MINIMUM TEMPERATURE (F)   13       -17      1956                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 21 2017......SUNRISE  1014 AM AKST  SUNSET   343 PM AKST  
DECEMBER 22 2017......SUNRISE  1015 AM AKST  SUNSET   343 PM AKST  

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




$$