021  
CDUS45 KRIW 160734  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1234 AM MST SAT DEC 16 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 15 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 47 1:47 PM 57 1980 34 13 19  
MINIMUM 23 2:59 AM -20 2008 14 9 -3  
AVERAGE 35 24 11  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.52 2010 0.02 -0.02 0.00  
MONTH TO DATE 0.02 0.30 -0.28 0.55  
SINCE DEC 1 0.02 0.30 -0.28 0.55  
SINCE JAN 1 15.37 11.91 3.46 13.17  
 
SNOWFALL (IN)  
YESTERDAY 0.0 7.3 2010 0.4 -0.4 0.0  
MONTH TO DATE 0.3 5.3 -5.0 12.2  
SINCE DEC 1 0.3 5.3 -5.0 12.2  
SINCE JUL 1 13.6 22.7 -9.1 30.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 41 -11 57  
MONTH TO DATE 493 590 -97 578  
SINCE DEC 1 493 590 -97 578  
SINCE JUL 1 2158 2392 -234 2393  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 342 443 -101 544    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 11.8  
 
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 77 3:00 AM  
LOWEST 31 2:00 PM  
AVERAGE 54  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 59 1980  
MINIMUM TEMPERATURE (F) 14 -31 1964  
 
SUNRISE AND SUNSET  
DECEMBER 16 2023......SUNRISE 7:30 AM MST SUNSET 4:32 PM MST  
DECEMBER 17 2023......SUNRISE 7:31 AM MST SUNSET 4:33 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab WY Page Main Text Page