175  
CDUS45 KCYS 210733  
CLICYS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
133 AM MDT THU OCT 21 2021  
   
...............................
 
 
...THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR OCTOBER 20 2021...  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1871 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 54 105 PM 78 1950 57 -3 63  
MINIMUM 31 359 AM 13 1911 32 -1 38  
AVERAGE 43 45 -2 51  
 
PRECIPITATION (IN)  
YESTERDAY T 1.09 1924 0.03 -0.03 0.00  
MONTH TO DATE 0.55 0.69 -0.14 T  
SINCE SEP 1 0.83 2.16 -1.33 0.60  
SINCE JAN 1 13.36 14.01 -0.65 8.52  
 
SNOWFALL (IN)  
YESTERDAY T 3.3 1906 0.2 -0.2 0.0  
MONTH TO DATE 1.3 3.2 -1.9 T  
SINCE SEP 1 1.3 4.2 -2.9 1.1  
SINCE JUL 1 1.3 4.2 -2.9 1.1  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 20 2 14  
MONTH TO DATE 286 330 -44 243  
SINCE SEP 1 388 526 -138 434  
SINCE JUL 1 397 576 -179 447  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE SEP 1 66 32 34 44  
SINCE JAN 1 603 397 206 605    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 10.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 300 AM  
LOWEST 38 200 PM  
AVERAGE 67  
   
......................................................
 
 
THE CHEYENNE WYOMING AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 78 2003  
MINIMUM TEMPERATURE (F) 32 13 1911  
 
SUNRISE AND SUNSET  
OCTOBER 21 2021.......SUNRISE 718 AM MDT SUNSET 609 PM MDT  
OCTOBER 22 2021.......SUNRISE 719 AM MDT SUNSET 608 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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