947  
CDUS45 KRIW 100731  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT WED MAY 10 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 9 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 70 1:35 PM 81 1987 63 7 48  
MINIMUM 33 5:01 AM 21 2002 37 -4 30  
AVERAGE 52 50 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.04 1953 0.10 -0.10 T  
MONTH TO DATE 0.01 0.79 -0.78 2.10  
SINCE MAR 1 3.42 4.15 -0.73 5.33  
SINCE JAN 1 7.31 5.36 1.95 6.78  
 
SNOWFALL (IN)  
YESTERDAY 0.0 7.4 1953 0.2 -0.2 T  
MONTH TO DATE 0.0 2.5 -2.5 T  
SINCE MAR 1 30.8 33.3 -2.5 24.1  
SINCE JUL 1 107.0 85.5 21.5 57.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 15 -2 26  
MONTH TO DATE 87 148 -61 151  
SINCE MAR 1 2180 1699 481 1794  
SINCE JUL 1 8449 7350 1099 6616  
 
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 26 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 7.7  
 
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 89 4:00 AM  
LOWEST 17 1:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 84 1961  
MINIMUM TEMPERATURE (F) 37 20 1894  
 
SUNRISE AND SUNSET  
MAY 10 2023...........SUNRISE 5:58 AM MDT SUNSET 8:25 PM MDT  
MAY 11 2023...........SUNRISE 5:57 AM MDT SUNSET 8:27 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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