430  
CDUS45 KBYZ 202240  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
440 PM MDT THU APR 20 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR APRIL 20 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1934 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 41 259 PM 90 1980 58 -17 56  
MINIMUM 30 617 AM 17 1966 36 -6 30  
AVERAGE 36 47 -11 43  
 
PRECIPITATION (IN)  
TODAY T 0.55 2005 0.06 -0.06 0.00  
MONTH TO DATE 0.71 1.14 -0.43 0.69  
SINCE OCT 1 5.41 5.70 -0.29 5.46  
SINCE JAN 1 3.36 3.16 0.20 2.70  
 
SNOWFALL (IN)  
TODAY MM 7.5 2005 0.3 MM 0.0  
MONTH TO DATE 1.5 5.9 -4.4 14.8  
SINCE MAR 1 18.4 14.1 4.3 21.2  
SINCE JUL 1 55.9 54.9 1.0 62.5  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 29 18 11 22  
MONTH TO DATE 430 409 21 560  
SINCE MAR 1 1549 1248 301 1361  
SINCE JUL 1 6622 6183 439 5921  
 
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 35 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 16.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 400 AM  
LOWEST 39 200 PM  
AVERAGE 61  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 89 1980  
MINIMUM TEMPERATURE (F) 36 15 2008  
 
SUNRISE AND SUNSET  
APRIL 20 2023.........SUNRISE 620 AM MDT SUNSET 807 PM MDT  
APRIL 21 2023.........SUNRISE 618 AM MDT SUNSET 809 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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