AFOS product CLICPR
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CDUS45 KRIW 180742
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
142 AM MDT SUN SEP 18 2011


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

...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 17 2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2011


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         66        MM  89    2000  74     -8       87        
  MINIMUM         40        MM  19    1965  41     -1       37        
  AVERAGE         53                        57     -4       62      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.09          0.75 2003   0.04   0.05     0.00    
  MONTH TO DATE    0.10                      0.55  -0.45     0.18    
  SINCE SEP 1      0.10                      0.55  -0.45     0.18    
  SINCE JAN 1      9.93                      9.63   0.30     9.74    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       0.1   -0.1      0.0     
  MONTH TO DATE    0.0                       0.5   -0.5      0.0     
  SINCE SEP 1      0.0                       0.5   -0.5      0.0     
  SINCE JUL 1      0.0                       0.5   -0.5      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       12                         8      4        3       
  MONTH TO DATE   81                        91    -10       91       
  SINCE SEP 1     81                        91    -10       91       
  SINCE JUL 1     82                       137    -55      149       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE   10                        24    -14       11       
  SINCE SEP 1     10                        24    -14       11       
  SINCE JAN 1    507                       421     86      415       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    SW (220)      
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED    13.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.4                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92           900 PM                                     
 LOWEST     31          1200 PM                                     
 AVERAGE    62                                                       

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

                                                                     
THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   73        89      1980                    
 MINIMUM TEMPERATURE (F)   40        19      1965                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 18 2011.....SUNRISE   649 AM MDT   SUNSET   711 PM MDT   
SEPTEMBER 19 2011.....SUNRISE   650 AM MDT   SUNSET   709 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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