719  
CDUS45 KBOI 220121  
CLITWF  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOISE ID  
721 PM MDT THU AUG 21 2025  
   
...............................
 
 
   
..THE TWIN FALLS ID CLIMATE SUMMARY FOR AUGUST 21 2025
 
 
VALID TODAY AS OF 0700 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1997 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 89 336 PM 99 2009 86 3 83  
MINIMUM 64 626 AM 49 2002 55 9 56  
AVERAGE 77 70 7 70  
 
PRECIPITATION (IN)  
TODAY 0.00 0.40 2012 0.01 -0.01 0.00  
MONTH TO DATE T 0.32 -0.32 0.72  
SINCE OCT 1 6.34 9.64 -3.30 7.81  
SINCE JAN 1 3.55 6.82 -3.27 5.36  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 69 120 -51 56  
SINCE JUL 1 0 10 -10 0  
 
COOLING  
TODAY 12 6 6 5  
MONTH TO DATE 190 166 24 219  
SINCE JUN 1 659 499 160 741  
SINCE JAN 1 704 514 190 743    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 11.4  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 38 500 AM  
LOWEST 18 500 PM  
AVERAGE 28  
   
......................................................
 
 
THE TWIN FALLS ID CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 96 2011  
MINIMUM TEMPERATURE (F) 54 43 2002  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 652 AM MDT SUNSET 829 PM MDT  
AUGUST 22 2025........SUNRISE 653 AM MDT SUNSET 828 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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