001  
CDUS45 KRIW 310739  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
139 AM MDT WED MAY 31 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 30 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 76 1:45 PM 90 1984 72 4 47  
MINIMUM 48 5:39 AM 30 1982 44 4 39  
AVERAGE 62 58 4  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.79 1989 0.08 -0.07 0.47  
MONTH TO DATE 0.86 2.61 -1.75 3.28  
SINCE MAR 1 4.27 5.97 -1.70 6.51  
SINCE JAN 1 8.16 7.18 0.98 7.96  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.1 2011 0.1 -0.1 0.0  
MONTH TO DATE 0.0 4.5 -4.5 T  
SINCE MAR 1 30.8 35.3 -4.5 24.1  
SINCE JUL 1 107.0 87.5 19.5 57.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 8 -5 22  
MONTH TO DATE 240 378 -138 429  
SINCE MAR 1 2333 1929 404 2072  
SINCE JUL 1 8602 7580 1022 6894  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE MAR 1 0 0 0 1  
SINCE JAN 1 0 0 0 1    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 6.4  
 
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 66 6:00 AM  
LOWEST 27 2:00 PM  
AVERAGE 47  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 88 2020  
MINIMUM TEMPERATURE (F) 44 26 1919  
 
SUNRISE AND SUNSET  
MAY 31 2023...........SUNRISE 5:40 AM MDT SUNSET 8:46 PM MDT  
JUNE 1 2023..........SUNRISE 5:39 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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