621  
CDUS45 KBYZ 180937  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
337 AM MDT THU MAY 18 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR MAY 17 2023
 
 
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)  
YESTERDAY  
MAXIMUM 63 1246 AM 93 1948 67 -4 73  
MINIMUM 49 1159 PM 32 1942 44 5 51  
AVERAGE 56 56 0 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.10 1.32 1978 0.08 0.02 0.00  
MONTH TO DATE 1.56 1.15 0.41 1.11  
SINCE OCT 1 7.04 7.43 -0.39 8.32  
SINCE JAN 1 4.99 4.89 0.10 5.56  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1996 0.0 0.0 0.0  
2019  
MONTH TO DATE T 0.7 -0.7 T  
SINCE MAR 1 18.6 16.4 2.2 21.5  
SINCE JUL 1 56.1 57.2 -1.1 62.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 10 -1 3  
MONTH TO DATE 130 210 -80 203  
SINCE MAR 1 1856 1626 230 1760  
SINCE JUL 1 6929 6561 368 6320  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 5 0 5 0  
SINCE MAR 1 5 1 4 0  
SINCE JAN 1 5 1 4 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1100 AM  
LOWEST 56 1200 AM  
AVERAGE 76  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 94 1948  
MINIMUM TEMPERATURE (F) 45 32 1942  
2019  
 
SUNRISE AND SUNSET  
MAY 18 2023...........SUNRISE 539 AM MDT SUNSET 842 PM MDT  
MAY 19 2023...........SUNRISE 538 AM MDT SUNSET 844 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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