CDUS45 KRIW 200045
CLIRIW

CLIMATE REPORT 
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT TUE MAY 19 2026

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

...THE RIVERTON WY CLIMATE SUMMARY FOR MAY 19 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         56   4:45 PM  89    2009  68    -12       56        
  MINIMUM         29R  5:07 AM  31    2003  41    -12       40        
                                      2019                           
  AVERAGE         43                        54    -11       48     

PRECIPITATION (IN)                                                    
  TODAY            0.00          1.91 2011   0.07  -0.07     0.09     
  MONTH TO DATE    0.28                      1.22  -0.94     1.06     
  SINCE MAR 1      0.85                      3.07  -2.22     3.94     
  SINCE JAN 1      1.12                      3.76  -2.64     4.44     

SNOWFALL (IN)                                                              
  TODAY           MM                                         0.0      
  MONTH TO DATE    0.8                                       0.9      
  SINCE MAR 1      8.4                                      18.2      
  SINCE JUL 1     16.4                                      30.7      
  SNOW DEPTH      MM                                                  

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY           22                        11     11       17        
  MONTH TO DATE  229                       269    -40      231        
  SINCE MAR 1   1354                      1828   -474     1721        
  SINCE JUL 1   5647                      7706  -2059     7068        

 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    15   HIGHEST WIND DIRECTION     S (170)       
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SE (120)       
  AVERAGE WIND SPEED     6.0                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.1                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92                                                        
 LOWEST     15                                                        
 AVERAGE    54                                                        

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


THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   68        872006                      
 MINIMUM TEMPERATURE (F)   41        26      2003                      


SUNRISE AND SUNSET                                                    
MAY 19 2026...........SUNRISE   5:46 AM MDT   SUNSET   8:35 PM MDT     
MAY 20 2026...........SUNRISE   5:46 AM MDT   SUNSET   8:36 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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