141  
CDUS45 KBYZ 141049  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
449 AM MDT FRI MAY 14 2021  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR MAY 13 2021
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1934 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 66 1136 AM 94 2013 66 0 64  
MINIMUM 45 143 AM 24 2004 43 2 42  
AVERAGE 56 54 2 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.75 1962 0.07 -0.04 0.02  
MONTH TO DATE 0.89 0.83 0.06 0.31  
SINCE OCT 1 7.08 7.11 -0.03 4.49  
SINCE JAN 1 4.12 4.57 -0.45 2.55  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.9 1995 0.0 0.0 0.0  
MONTH TO DATE T 0.6 -0.6 T  
SINCE MAR 1 5.0 16.3 -11.3 17.4  
SINCE JUL 1 53.0 57.1 -4.1 54.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 11 -2 12  
MONTH TO DATE 181 169 12 197  
SINCE MAR 1 1508 1585 -77 1717  
SINCE JUL 1 6330 6520 -190 6646  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 4 1 3 0  
SINCE JAN 1 4 1 3 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 900 AM  
LOWEST 33 200 PM  
AVERAGE 56  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 96 1936  
MINIMUM TEMPERATURE (F) 43 28 1953  
 
SUNRISE AND SUNSET  
MAY 14 2021...........SUNRISE 543 AM MDT SUNSET 838 PM MDT  
MAY 15 2021...........SUNRISE 542 AM MDT SUNSET 839 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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