225  
CDUS45 KRIW 190729  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT THU OCT 19 2023  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR OCTOBER 18 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 68 4:17 PM 79 2015 59 9 73  
MINIMUM 34 6:42 AM 22 2006 32 2 30  
AVERAGE 51 46 5 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.15 2020 0.02 -0.02 0.00  
MONTH TO DATE 0.28 0.45 -0.17 0.09  
SINCE SEP 1 1.86 1.28 0.58 1.25  
SINCE JAN 1 7.94 5.10 2.84 5.49  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 19 -5 13  
MONTH TO DATE 219 278 -59 231  
SINCE SEP 1 288 447 -159 308  
SINCE JUL 1 293 466 -173 311  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 50 46 4 96  
SINCE JAN 1 702 742 -40 943    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 5.3  
 
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 59 6:00 AM  
LOWEST 16 2:00 PM  
AVERAGE 38  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 80 2003  
MINIMUM TEMPERATURE (F) 32 22 1999  
2002  
 
SUNRISE AND SUNSET  
OCTOBER 19 2023.......SUNRISE 7:32 AM MDT SUNSET 6:21 PM MDT  
OCTOBER 20 2023.......SUNRISE 7:34 AM MDT SUNSET 6:20 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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