112  
CXUS55 KCYS 022009  
CLMDGW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
209 PM MDT THU NOV 2 2017  
   
...............................
 
 
 
...THE DOUGLAS WY AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2017...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2017  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
.........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 86 10/10/2015  
10/02/2011  
10/04/2010  
LOW 4 10/31/2002  
HIGHEST 80 10/25 MM MM 82  
10/19  
LOWEST 6 10/31 MM MM 16  
AVG. MAXIMUM 60.3 61.2 -0.9 68.9  
AVG. MINIMUM 27.8 30.2 -2.4 32.9  
MEAN 44.1 45.7 -1.6 50.9  
DAYS MAX >= 90 0 0.0 0  
DAYS MAX <= 32 0 0.9 0  
DAYS MIN <= 32 23 17.5 17  
DAYS MIN <= 0 0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 2.00 2013  
MINIMUM 0.13 2016  
TOTALS 0.49 1.06 -0.57 0.13  
DAYS >= .01 6 MM MM 3  
DAYS >= .10 2 MM MM 0  
DAYS >= .50 0 MM MM 0  
DAYS >= 1.00 0 MM MM 0  
GREATEST  
24 HR. TOTAL 0.21 10/08 TO 10/09  
 
DEGREE_DAYS  
HEATING TOTAL 641 598 43 428  
SINCE 7/1 898 867 31 645  
COOLING TOTAL 0 0 0 0  
SINCE 1/1 502 486 16 209    
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 10.7  
HIGHEST WIND SPEED/DIRECTION 41/270 DATE 10/22  
HIGHEST GUST SPEED/DIRECTION 50/260 DATE 10/22  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.20  
NUMBER OF DAYS FAIR 19  
NUMBER OF DAYS PC 11  
NUMBER OF DAYS CLOUDY 1  
 
AVERAGE RH (PERCENT) 56  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 MIXED PRECIP 0  
HEAVY RAIN 0 RAIN 1  
LIGHT RAIN 5 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 7 SLEET 0  
FOG 7 FOG W/VIS <= 1/4 MILE 1  
HAZE 1  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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