141  
CDUS45 KRIW 210747  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
147 AM MDT TUE MAY 21 2024  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 20 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 53 12:59 PM 91 1954 68 -15 77  
MINIMUM 37 11:59 PM 26 1950 41 -4 42  
AVERAGE 45 54 -9  
 
PRECIPITATION (IN)  
YESTERDAY 0.11 1.34 1917 0.09 0.02 0.00  
1975  
MONTH TO DATE 1.14 1.79 -0.65 0.61  
SINCE MAR 1 3.71 5.15 -1.44 4.02  
SINCE JAN 1 5.62 6.36 -0.74 7.01  
 
SNOWFALL (IN)  
YESTERDAY 0.0 14.2 1975 0.1 -0.1 0.0  
MONTH TO DATE 0.0 3.9 -3.9 0.0  
SINCE MAR 1 19.4 34.7 -15.3 30.8  
SINCE JUL 1 69.3 86.9 -17.6 95.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 11 9 5  
MONTH TO DATE 291 287 4 199  
SINCE MAR 1 1713 1838 -125 2292  
SINCE JUL 1 7021 7489 -468 8563  
 
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 24 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 11:00 PM  
LOWEST 54 12:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 85 1948  
1964  
2006  
MINIMUM TEMPERATURE (F) 41 27 1908  
2001  
 
SUNRISE AND SUNSET  
MAY 21 2024...........SUNRISE 5:46 AM MDT SUNSET 8:38 PM MDT  
MAY 22 2024...........SUNRISE 5:45 AM MDT SUNSET 8:39 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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