388  
CDUS45 KMSO 180739  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
139 AM MDT THU MAY 18 2023  
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR MAY 17 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1895 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 233 PM 82 1976 62 5 67  
2006  
MINIMUM 43 438 AM 16 1896 35 8 36  
AVERAGE 55 48 7 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.82 2019 0.07 -0.06 0.00  
MONTH TO DATE 1.26 0.90 0.36 0.23  
SINCE JAN 1 3.97 3.72 0.25 1.39  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE MM  
SINCE MAR 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 10 17 -7 13  
MONTH TO DATE 242 333 -91 366  
SINCE MAR 1 2449 2157 292 2259  
SINCE JUL 1 9166 8632 534 8137  
 
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 14 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 37 200 PM  
AVERAGE 65  
   
......................................................
 
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 84 2009  
MINIMUM TEMPERATURE (F) 35 21 1960  
 
SUNRISE AND SUNSET  
MAY 18 2023...........SUNRISE 555 AM MDT SUNSET 859 PM MDT  
MAY 19 2023...........SUNRISE 554 AM MDT SUNSET 900 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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