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CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
1241 AM MST WED JAN 10 2018


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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JANUARY 9 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         33    335 PM  36    2004  24      9       32       
  MINIMUM         17   1205 AM -13    2011   1     16       18       
  AVERAGE         25                        13     12       25      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.21          0.52 2017   0.09   0.12     0.52    
  MONTH TO DATE    0.28                      0.74  -0.46     1.20    
  SINCE DEC 1      2.53                      2.24   0.29     4.30    
  SINCE JAN 1      0.28                      0.74  -0.46     1.20    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       40                        52    -12       40       
  MONTH TO DATE  432                       468    -36      570       
  SINCE DEC 1   2026                      2058    -32     2329       
  SINCE JUL 1   5395                      5378     17     5473       
                                                                     
 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)                                                           
  HIGHEST WIND SPEED     5   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED     8   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED     0.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           800 AM                                     
 LOWEST     91           100 AM                                     
 AVERAGE    96                                                       

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

                                                                     
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   24        31      2015                    
 MINIMUM TEMPERATURE (F)    1       -14      2011                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 10 2018.......SUNRISE   757 AM MST   SUNSET   502 PM MST   
JANUARY 11 2018.......SUNRISE   757 AM MST   SUNSET   503 PM MST   

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




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