293  
CDUS45 KCYS 220739  
CLIAIA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
137 AM MDT FRI SEP 22 2017  
 
   
...............................
 
 
   
..THE ALLIANCE NE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1896 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 86 346 PM 94 2005 74 12 77  
MINIMUM 48 604 AM 22 1913 40 8 52  
AVERAGE 67 57 10 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.70 1902 0.04 -0.04 0.00  
MONTH TO DATE 0.72 1.02 -0.30 1.29  
SINCE JAN 1 15.22 13.43 1.79 15.12  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 9 -9 0  
MONTH TO DATE 65 110 -45 75  
SINCE SEP 1 65 110 -45 75  
SINCE JUL 1 93 147 -54 113  
 
COOLING  
YESTERDAY 2 1 1 0  
MONTH TO DATE 58 37 21 30  
SINCE SEP 1 58 37 21 30  
SINCE JAN 1 553 560 -7 583    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 11.3  
 
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 500 AM  
LOWEST 19 200 PM  
AVERAGE 50  
   
......................................................
 
 
 
THE ALLIANCE NE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 93 1939  
MINIMUM TEMPERATURE (F) 40 26 2011  
2002  
1995  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2017.....SUNRISE 639 AM MDT SUNSET 648 PM MDT  
SEPTEMBER 23 2017.....SUNRISE 640 AM MDT SUNSET 646 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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