420  
CDUS45 KRIW 220727  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SAT JUL 22 2023  
   
...............................
 
 
   
..THE GREYBULL 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 93 4:35 PM 105 2007 93 0 97  
MINIMUM 58 5:25 AM 53 2000 59 -1 57  
2011  
AVERAGE 76 76 0 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.06 2002 0.00 0.00 0.00  
MONTH TO DATE 0.94 0.12 0.82 0.03  
SINCE JUN 1 4.66 1.20 3.46 0.17  
SINCE JAN 1 5.87 3.55 2.32 2.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 5 0 5 0  
SINCE JUN 1 44 62 -18 62  
SINCE JUL 1 5 0 5 0  
 
COOLING  
YESTERDAY 11 11 0 12  
MONTH TO DATE 156 198 -42 271  
SINCE JUN 1 224 320 -96 388  
SINCE JAN 1 257 344 -87 394    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 5:00 AM  
LOWEST 15 3:00 PM  
AVERAGE 43  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 93 105 2007  
MINIMUM TEMPERATURE (F) 59 54 2010  
 
SUNRISE AND SUNSET  
JULY 22 2023..........SUNRISE 5:48 AM MDT SUNSET 8:49 PM MDT  
JULY 23 2023..........SUNRISE 5:49 AM MDT SUNSET 8:48 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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