418  
CDUS45 KRIW 220727  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SAT JUL 22 2023  
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 21 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 75 2:13 PM 84 2007 74 1 78  
MINIMUM 39 5:22 AM 34 2000 40 -1 41  
2010  
2011  
AVERAGE 57 57 0 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.14 2008 0.05 -0.05 0.00  
MONTH TO DATE 0.40 1.03 -0.63 0.17  
SINCE JUN 1 3.30 3.41 -0.11 3.63  
SINCE JAN 1 13.64 13.44 0.20 15.25  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 8 0 5  
MONTH TO DATE 157 214 -57 142  
SINCE JUN 1 689 752 -63 667  
SINCE JUL 1 157 214 -57 142  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 1.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 3:00 AM  
LOWEST 33 5:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 83 2007  
MINIMUM TEMPERATURE (F) 40 36 2000  
 
SUNRISE AND SUNSET  
JULY 22 2023..........SUNRISE 5:58 AM MDT SUNSET 8:58 PM MDT  
JULY 23 2023..........SUNRISE 5:59 AM MDT SUNSET 8:57 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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