517  
CDUS45 KTFX 140736  
CLIDLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
136 AM MDT FRI MAY 14 2021  
   
...............................
 
 
   
..THE DILLON AIRPORT MT CLIMATE SUMMARY FOR MAY 13 2021
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1929 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 70 402 PM 87 2013 62 8 59  
MINIMUM 37 353 AM 20 1983 35 2 36  
AVERAGE 54 48 6 48  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.38 2017 0.05 -0.05 T  
MONTH TO DATE 0.17 0.58 -0.41 0.01  
SINCE OCT 1 0.94 4.07 -3.13 1.91  
SINCE JAN 1 0.68 2.72 -2.04 0.69  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 17 -6 17  
MONTH TO DATE 242 243 -1 249  
SINCE MAR 1 1918 1976 -58 2026  
SINCE JUL 1 7765 8028 -263 8178  
 
COOLING  
YESTERDAY 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 17 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 400 AM  
LOWEST 16 500 PM  
AVERAGE 43  
   
......................................................
 
 
THE DILLON AIRPORT MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 82 1987  
MINIMUM TEMPERATURE (F) 35 20 1983  
 
SUNRISE AND SUNSET  
MAY 14 2021...........SUNRISE 601 AM MDT SUNSET 853 PM MDT  
MAY 15 2021...........SUNRISE 600 AM MDT SUNSET 854 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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