961  
CDUS45 KRIW 150738  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
138 AM MDT MON MAY 15 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 14 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 52 1:20 PM 85 1936 65 -13 69  
1987  
MINIMUM 44 6:58 AM 24 1907 39 5 39  
AVERAGE 48 52 -4  
 
PRECIPITATION (IN)  
YESTERDAY 0.40 1.20 1958 0.09 0.31 0.00  
1989  
MONTH TO DATE 0.53 1.24 -0.71 2.37  
SINCE MAR 1 3.94 4.60 -0.66 5.60  
SINCE JAN 1 7.83 5.81 2.02 7.05  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.5 1967 0.1 -0.1 0.0  
MONTH TO DATE 0.0 3.3 -3.3 T  
SINCE MAR 1 30.8 34.1 -3.3 24.1  
SINCE JUL 1 107.0 86.3 20.7 57.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 13 4 11  
MONTH TO DATE 158 216 -58 228  
SINCE MAR 1 2251 1767 484 1871  
SINCE JUL 1 8520 7418 1102 6693  
 
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 10 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 8:00 AM  
LOWEST 79 1:00 PM  
AVERAGE 90  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 85 1987  
MINIMUM TEMPERATURE (F) 39 19 1896  
 
SUNRISE AND SUNSET  
MAY 15 2023...........SUNRISE 5:52 AM MDT SUNSET 8:31 PM MDT  
MAY 16 2023...........SUNRISE 5:51 AM MDT SUNSET 8:32 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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