694  
CDUS45 KRIW 200730  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
130 AM MDT SUN AUG 20 2017  
 
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR AUGUST 19 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1939 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 90 300 PM 96 2013 86 4 55  
MINIMUM 49 218 AM 37 2002 51 -2 40  
AVERAGE 70 69 1 48  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.35 1979 0.03 -0.03 0.24  
MONTH TO DATE 0.90 0.58 0.32 0.52  
SINCE JUN 1 2.28 3.60 -1.32 1.93  
SINCE JAN 1 9.88 8.81 1.07 11.39  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 17  
MONTH TO DATE 20 10 10 21  
SINCE JUN 1 112 162 -50 63  
SINCE JUL 1 21 26 -5 26  
 
COOLING  
YESTERDAY 5 5 0 0  
MONTH TO DATE 42 112 -70 96  
SINCE JUN 1 337 353 -16 405  
SINCE JAN 1 337 357 -20 405    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 9.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 59 100 AM  
LOWEST 6 500 PM  
AVERAGE 33  
   
......................................................
 
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 97 1973  
MINIMUM TEMPERATURE (F) 51 38 2016  
 
 
SUNRISE AND SUNSET  
AUGUST 20 2017........SUNRISE 618 AM MDT SUNSET 800 PM MDT  
AUGUST 21 2017........SUNRISE 619 AM MDT SUNSET 758 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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