759   
CDUS45 KRIW 280045  
CLIRIW  
  
CLIMATE REPORT   
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT WED AUG 27 2025  
   
...............................  
  
   
..THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 27 2025  
  
VALID TODAY AS OF 0600 PM LOCAL TIME.  
  
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1995 TO 2025  
  
WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST        
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR       
                                                  NORMAL              
...............................................................  
  
TEMPERATURE (F)                                                            
 TODAY                                                                 
  MAXIMUM         70   1:21 PM  95    2011  83    -13       82          
  MINIMUM         58   8:13 AM  44    2024  51      7       44          
  AVERAGE         64                        67     -3       63       
  
PRECIPITATION (IN)                                                      
  TODAY            0.40R         0.07 2014   0.01   0.39     0.00       
  MONTH TO DATE    0.41                      0.36   0.05     0.32       
  SINCE JUN 1      1.62                      1.84  -0.22     0.79       
  SINCE JAN 1      6.14                      6.30  -0.16     5.43       
  
SNOWFALL (IN)                                                                
  TODAY           MM                                         0.0        
  MONTH TO DATE    0.0                                       0.0        
  SINCE JUN 1      0.0                                       0.0        
  SINCE JUL 1      0.0                                       0.0        
  SNOW DEPTH      MM                                                    
  
DEGREE DAYS                                                             
 HEATING                                                                
  TODAY            1                         2     -1        2          
  MONTH TO DATE    3                        16    -13        7          
  SINCE JUN 1     81                       141    -60       47          
  SINCE JUL 1      3                        26    -23       14          
  
 COOLING                                                                
  TODAY            0                         3     -3        0          
  MONTH TO DATE  182                       158     24      178          
  SINCE JUN 1    567                       449    118      533          
  SINCE JAN 1    573                       457    116      533           
...............................................................  
  
WIND (MPH)                                                              
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     N (340)         
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SE (130)         
  AVERAGE WIND SPEED     5.7                                          
  
SKY COVER                                                               
  POSSIBLE SUNSHINE  MM                                                   
  AVERAGE SKY COVER 0.8                                                   
  
WEATHER CONDITIONS                                                      
THE FOLLOWING WEATHER WAS RECORDED TODAY.                               
  RAIN                                                                  
  LIGHT RAIN                                                            
  FOG                                                                   
  
RELATIVE HUMIDITY (PERCENT)  
 HIGHEST    96                                                          
 LOWEST     61                                                          
 AVERAGE    79                                                          
   
......................................................  
  
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW  
                         NORMAL    RECORD    YEAR                       
 MAXIMUM TEMPERATURE (F)   82        94      2012                        
 MINIMUM TEMPERATURE (F)   51        43      2004                        
                                             2019                       
  
SUNRISE AND SUNSET                                                      
AUGUST 27 2025........SUNRISE   6:33 AM MDT   SUNSET   7:56 PM MDT       
AUGUST 28 2025........SUNRISE   6:34 AM MDT   SUNSET   7:55 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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