682  
CDUS45 KRIW 170739  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
139 AM MDT THU APR 17 2025  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR APRIL 16 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 68 3:10 PM 78 1985 56 12 68  
MINIMUM 42 5:46 AM 12 1945 30 12 40  
AVERAGE 55 43 12  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.20 1914 0.07 -0.07 0.02  
MONTH TO DATE 0.07 1.02 -0.95 0.17  
SINCE MAR 1 3.10 2.31 0.79 1.54  
SINCE JAN 1 4.18 3.52 0.66 3.45  
 
SNOWFALL (IN)  
YESTERDAY MM 9.5 2009 0.6 MM 0.0  
MONTH TO DATE 0.7 9.4 -8.7 1.4  
SINCE MAR 1 30.0 23.8 6.2 18.0  
SINCE JUL 1 60.3 76.0 -15.7 67.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 10 22 -12 11  
MONTH TO DATE 313 371 -58 271  
SINCE MAR 1 1143 1270 -127 1139  
SINCE JUL 1 6172 6921 -749 6447  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 36 11:00 PM  
LOWEST 16 12:00 PM  
AVERAGE 26  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 80 1994  
MINIMUM TEMPERATURE (F) 30 7 1945  
 
SUNRISE AND SUNSET  
APRIL 17 2025.........SUNRISE 6:30 AM MDT SUNSET 8:00 PM MDT  
APRIL 18 2025.........SUNRISE 6:28 AM MDT SUNSET 8:01 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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