312  
CDUS45 KTFX 212240  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
440 PM MDT MON AUG 21 2023  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR AUGUST 21 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 77 258 PM 97 1969 80 -3 88  
MINIMUM 56 614 AM 29 1904 49 7 58  
AVERAGE 67 64 3 73  
 
PRECIPITATION (IN)  
TODAY 0.07 1.80 1918 0.06 0.01 T  
MONTH TO DATE 0.50 1.15 -0.65 0.50  
SINCE OCT 1 16.68 15.24 1.44 11.91  
SINCE JAN 1 14.00 12.79 1.21 10.15  
 
DEGREE DAYS  
HEATING  
TODAY 0 3 -3 0  
MONTH TO DATE 36 38 -2 10  
SINCE JUN 1 268 329 -61 245  
SINCE JUL 1 78 103 -25 20  
 
COOLING  
TODAY 2 2 0 8  
MONTH TO DATE 72 73 -1 143  
SINCE JUN 1 177 191 -14 308  
SINCE JAN 1 177 192 -15 308    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97  
LOWEST 64  
AVERAGE 81  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 98 1976  
MINIMUM TEMPERATURE (F) 48 34 1992  
 
SUNRISE AND SUNSET  
AUGUST 21 2023........SUNRISE 623 AM MDT SUNSET 818 PM MDT  
AUGUST 22 2023........SUNRISE 624 AM MDT SUNSET 817 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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