656  
CDUS45 KRIW 220029  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
629 PM MDT FRI APR 21 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 21 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 42 4:11 PM 83 1989 57 -15 76  
MINIMUM 21 5:02 AM 14 1973 29 -8 20  
AVERAGE 32 43 -11 48  
 
PRECIPITATION (IN)  
TODAY T 0.63 1947 0.05 -0.05 0.00  
MONTH TO DATE 1.43 0.91 0.52 0.87  
SINCE MAR 1 2.08 1.75 0.33 2.41  
SINCE JAN 1 4.76 2.80 1.96 4.16  
 
SNOWFALL (IN)  
TODAY T 0.3 -0.3 0.0  
MONTH TO DATE 38.9 8.0 30.9 11.7  
SINCE MAR 1 48.2 18.3 29.9 32.4  
SINCE JUL 1 134.2 66.6 67.6 91.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 33 22 11 17  
MONTH TO DATE 571 498 73 614  
SINCE MAR 1 1751 1405 346 1601  
SINCE JUL 1 7452 6767 685 6460  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 7.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 42  
AVERAGE 65  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 81 1994  
MINIMUM TEMPERATURE (F) 29 12 1967  
 
SUNRISE AND SUNSET  
APRIL 21 2023.........SUNRISE 6:15 AM MDT SUNSET 7:55 PM MDT  
APRIL 22 2023.........SUNRISE 6:13 AM MDT SUNSET 7:56 PM MDT  
 
- 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