360  
CDUS45 KRIW 130728  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT SAT MAY 13 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 12 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 59 4:01 PM 86 1960 65 -6 56  
MINIMUM 47 11:59 PM 19 1953 38 9 40  
AVERAGE 53 51 2  
 
PRECIPITATION (IN)  
YESTERDAY T 0.95 1935 0.10 -0.10 0.23  
MONTH TO DATE 0.10 1.06 -0.96 2.37  
SINCE MAR 1 3.51 4.42 -0.91 5.60  
SINCE JAN 1 7.40 5.63 1.77 7.05  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.7 1980 0.1 -0.1 0.0  
MONTH TO DATE 0.0 3.0 -3.0 T  
SINCE MAR 1 30.8 33.8 -3.0 24.1  
SINCE JUL 1 107.0 86.0 21.0 57.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 14 -2 17  
MONTH TO DATE 126 190 -64 199  
SINCE MAR 1 2219 1741 478 1842  
SINCE JUL 1 8488 7392 1096 6664  
 
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 17 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 12:00 AM  
LOWEST 47 5:00 PM  
AVERAGE 65  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 86 1988  
2001  
2013  
MINIMUM TEMPERATURE (F) 39 25 1933  
 
SUNRISE AND SUNSET  
MAY 13 2023...........SUNRISE 5:54 AM MDT SUNSET 8:29 PM MDT  
MAY 14 2023...........SUNRISE 5:53 AM MDT SUNSET 8:30 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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