Weather Service Report


853 
CDUS45 KRIW 210733
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
132 AM MDT MON SEP 21 2020


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

...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 20 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         74    339 PM  89    1956  72      2       73       
  MINIMUM         47   1119 PM  16    1983  40      7       43       
  AVERAGE         61                        56      5       58      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.01 1989   0.04  -0.04     0.01    
  MONTH TO DATE    0.54                      0.67  -0.13     0.51    
  SINCE SEP 1      0.54                      0.67  -0.13     0.51    
  SINCE JAN 1      4.75                      9.75  -5.00     9.80    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       0.1   -0.1      0.0     
  MONTH TO DATE    7.5                       0.7    6.8      0.0     
  SINCE SEP 1      7.5                       0.7    6.8      0.0     
  SINCE JUL 1      7.5                       0.7    6.8      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        4                        10     -6        7       
  MONTH TO DATE  151                       119     32       58       
  SINCE SEP 1    151                       119     32       58       
  SINCE JUL 1    170                       165      5       74       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE   24                        24      0       58       
  SINCE SEP 1     24                        24      0       58       
  SINCE JAN 1    539                       421    118      441       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION    SW (240)      
  HIGHEST GUST SPEED    42   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    14.8                                         

                                                                     
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    71           300 AM                                     
 LOWEST     19           200 PM                                     
 AVERAGE    45                                                       

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

                                                                     
THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   71        85      1966                    
 MINIMUM TEMPERATURE (F)   39        21      1983                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 21 2020.....SUNRISE   653 AM MDT   SUNSET   704 PM MDT   
SEPTEMBER 22 2020.....SUNRISE   654 AM MDT   SUNSET   702 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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Western Regional Climate Center, wrcc@dri.edu