CDUS45 KRIW 190046
CLIRIW

CLIMATE REPORT 
NATIONAL WEATHER SERVICE RIVERTON WY
646 PM MDT MON MAY 18 2026

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

...THE RIVERTON WY CLIMATE SUMMARY FOR MAY 18 2026...
VALID TODAY AS OF 0600 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 TODAY                                                               
  MAXIMUM         42   4:54 PM  87    2009  68    -26       63        
  MINIMUM         30R  6:10 AM  32    2017  40    -10       43        
  AVERAGE         36                        54    -18       53     

PRECIPITATION (IN)                                                    
  TODAY            0.04          0.74 2017   0.07  -0.03     0.10     
  MONTH TO DATE    0.28                      1.15  -0.87     0.97     
  SINCE MAR 1      0.85                      3.00  -2.15     3.85     
  SINCE JAN 1      1.12                      3.69  -2.57     4.35     

SNOWFALL (IN)                                                              
  TODAY           MM                                         0.0      
  MONTH TO DATE    0.5                                       0.9      
  SINCE MAR 1      8.1                                      18.2      
  SINCE JUL 1     16.1                                      30.7      
  SNOW DEPTH      MM                                                  

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY           29                        11     18       12        
  MONTH TO DATE  207                       258    -51      214        
  SINCE MAR 1   1332                      1817   -485     1704        
  SINCE JUL 1   5625                      7695  -2070     7051        

 COOLING                                                              
  TODAY            0                         0      0        0        
  MONTH TO DATE    8                         0      8        3        
  SINCE MAR 1      8                         0      8        3        
  SINCE JAN 1      8                         0      8        3        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION     N (10)        
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION     N (10)        
  AVERAGE WIND SPEED    18.9                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 1.0                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED TODAY.                             
  LIGHT SNOW                                                          
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92                                                        
 LOWEST     50                                                        
 AVERAGE    71                                                        

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


THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   68        89      2009                      
 MINIMUM TEMPERATURE (F)   41        31      2003                      
                                             2019                     


SUNRISE AND SUNSET                                                    
MAY 18 2026...........SUNRISE   5:47 AM MDT   SUNSET   8:34 PM MDT     
MAY 19 2026...........SUNRISE   5:46 AM MDT   SUNSET   8:35 PM MDT     


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




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