161  
CDUS45 KRIW 220731  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT SAT AUG 22 2026  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR AUGUST 21 2026
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 97 1:17 PM 98 1960 85 12 91  
MINIMUM 59 6:30 AM 39 1966 53 6 66  
1974  
AVERAGE 78 69 9  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.29 1891 0.01 0.00 0.00  
MONTH TO DATE 0.36 0.36 0.00 0.05  
SINCE JUN 1 1.44 2.03 -0.59 1.03  
SINCE JAN 1 6.13 9.28 -3.15 9.59  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2020 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 3 7 -4 2  
SINCE JUN 1 78 145 -67 92  
SINCE JUL 1 3 21 -18 4  
 
COOLING  
YESTERDAY 13 5 8 14  
MONTH TO DATE 171 137 34 168  
SINCE JUN 1 582 410 172 492  
SINCE JAN 1 596 415 181 500    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 34 4:00 AM  
LOWEST 15 2:00 PM  
AVERAGE 25  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 96 2009  
MINIMUM TEMPERATURE (F) 53 31 1904  
 
SUNRISE AND SUNSET  
AUGUST 22 2026........SUNRISE 6:29 AM MDT SUNSET 8:06 PM MDT  
AUGUST 23 2026........SUNRISE 6:30 AM MDT SUNSET 8:04 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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