963  
CDUS45 KRIW 190731  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT SAT JUL 19 2025  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR JULY 18 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 86 3:01 PM 100 1998 89 -3 94  
2006  
MINIMUM 61 5:01 AM 40 1904 56 5 57  
AVERAGE 74 72 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.97 1911 0.02 -0.02 0.14  
MONTH TO DATE 0.21 0.31 -0.10 0.15  
SINCE JUN 1 0.91 1.39 -0.48 0.28  
SINCE JAN 1 9.47 8.64 0.83 6.14  
 
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 0 0 0  
MONTH TO DATE 2 9 -7 6  
SINCE JUN 1 90 133 -43 41  
SINCE JUL 1 2 9 -7 6  
 
COOLING  
YESTERDAY 9 8 1 11  
MONTH TO DATE 132 111 21 124  
SINCE JUN 1 219 170 49 267  
SINCE JAN 1 227 175 52 267    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 42 11:00 PM  
LOWEST 21 1:00 AM  
AVERAGE 32  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 100 2021  
MINIMUM TEMPERATURE (F) 56 38 1895  
1900  
 
SUNRISE AND SUNSET  
JULY 19 2025..........SUNRISE 5:54 AM MDT SUNSET 8:48 PM MDT  
JULY 20 2025..........SUNRISE 5:55 AM MDT SUNSET 8:47 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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