573  
CDUS45 KRIW 190806  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
206 AM MDT FRI MAY 19 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 18 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 5:12 PM 86 1901 67 -8 76  
2006  
2020  
MINIMUM 46 3:25 AM 22 1896 40 6 42  
AVERAGE 53 54 -1  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.38 2017 0.09 -0.08 0.00  
MONTH TO DATE 0.61 1.61 -1.00 2.37  
SINCE MAR 1 4.02 4.97 -0.95 5.60  
SINCE JAN 1 7.91 6.18 1.73 7.05  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.3 2017 0.1 -0.1 0.0  
MONTH TO DATE 0.0 3.7 -3.7 T  
SINCE MAR 1 30.8 34.5 -3.7 24.1  
SINCE JUL 1 107.0 86.7 20.3 57.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 12 0 6  
MONTH TO DATE 186 265 -79 253  
SINCE MAR 1 2279 1816 463 1896  
SINCE JUL 1 8548 7467 1081 6718  
 
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 14 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 8:00 AM  
LOWEST 60 6:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 88 1954  
MINIMUM TEMPERATURE (F) 41 24 1950  
 
SUNRISE AND SUNSET  
MAY 19 2023...........SUNRISE 5:48 AM MDT SUNSET 8:35 PM MDT  
MAY 20 2023...........SUNRISE 5:48 AM MDT SUNSET 8:36 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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