086  
CDUS45 KRIW 310745  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
145 AM MDT MON JUL 31 2023  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JULY 30 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 96 4:42 PM 101 2000 93 3 98  
MINIMUM 61 4:40 AM 45 2009 59 2 63  
AVERAGE 79 76 3 81  
 
PRECIPITATION (IN)  
YESTERDAY T 0.17 2019 0.01 -0.01 0.00  
MONTH TO DATE 0.95 0.16 0.79 0.05  
SINCE JUN 1 4.67 1.24 3.43 0.19  
SINCE JAN 1 5.88 3.59 2.29 2.95  
 
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 14 11 3 16  
MONTH TO DATE 276 297 -21 383  
SINCE JUN 1 344 419 -75 500  
SINCE JAN 1 377 443 -66 506    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 39 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 52 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 58 3:00 AM  
LOWEST 17 4:00 PM  
AVERAGE 38  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 92 101 2000  
2012  
MINIMUM TEMPERATURE (F) 59 49 2009  
 
SUNRISE AND SUNSET  
JULY 31 2023..........SUNRISE 5:58 AM MDT SUNSET 8:39 PM MDT  
AUGUST 1 2023........SUNRISE 5:59 AM MDT SUNSET 8:38 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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