776  
CDUS45 KRIW 210738  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
137 AM MDT SAT APR 21 2018  
 
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR APRIL 20 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1948 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 51 155 PM 79 1989 55 -4 60  
MINIMUM 36 1138 PM 6 1966 30 6 30  
AVERAGE 44 43 1 45  
 
PRECIPITATION (IN)  
YESTERDAY T 1.95 1971 0.03 -0.03 0.01  
MONTH TO DATE 0.14 0.56 -0.42 0.19  
SINCE MAR 1 0.48 1.24 -0.76 1.62  
SINCE JAN 1 0.67 2.17 -1.50 2.52  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 22 -1 20  
MONTH TO DATE 495 496 -1 426  
SINCE MAR 1 1416 1473 -57 1206  
SINCE JUL 1 6682 7325 -643 6944  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 15.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 800 PM  
LOWEST 35 200 PM  
AVERAGE 56  
   
......................................................
 
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 77 1989  
MINIMUM TEMPERATURE (F) 31 14 1970  
 
 
SUNRISE AND SUNSET  
APRIL 21 2018.........SUNRISE 627 AM MDT SUNSET 804 PM MDT  
APRIL 22 2018.........SUNRISE 626 AM MDT SUNSET 805 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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