130  
CDUS45 KRIW 220805  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
204 AM MDT FRI SEP 22 2017  
 
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 21 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1948 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 259 PM 82 1967 68 4 74  
MINIMUM 46 639 AM 22 1995 41 5 46  
AVERAGE 59 54 5 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.32 1963 0.04 -0.04 0.00  
MONTH TO DATE 0.40 0.63 -0.23 0.36  
SINCE SEP 1 0.40 0.63 -0.23 0.36  
SINCE JAN 1 4.78 6.41 -1.63 5.53  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 11 -5 5  
MONTH TO DATE 120 147 -27 129  
SINCE SEP 1 120 147 -27 129  
SINCE JUL 1 137 211 -74 188  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 26 7 19 12  
SINCE SEP 1 26 7 19 12  
SINCE JAN 1 394 284 110 354    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 17.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 50 1100 PM  
LOWEST 16 500 PM  
AVERAGE 33  
   
......................................................
 
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 84 1966  
MINIMUM TEMPERATURE (F) 40 21 2000  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2017.....SUNRISE 704 AM MDT SUNSET 713 PM MDT  
SEPTEMBER 23 2017.....SUNRISE 705 AM MDT SUNSET 711 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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