208  
CDUS45 KBOI 220127  
CLIBOI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOISE ID  
727 PM MDT WED MAY 21 2025  
   
...............................  
 
   
..THE BOISE ID CLIMATE SUMMARY FOR MAY 21 2025  
 
VALID TODAY AS OF 0700 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1875 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 70 430 PM 91 1919 74 -4 69  
2023  
MINIMUM 40 548 AM 27 1887 49 -9 39  
AVERAGE 55 62 -7 54  
 
PRECIPITATION (IN)  
TODAY 0.00 1.12 1932 0.05 -0.05 0.00  
MONTH TO DATE 0.81 1.00 -0.19 0.74  
SINCE OCT 1 10.72 9.50 1.22 13.55  
SINCE JAN 1 6.31 5.97 0.34 9.61  
 
DEGREE DAYS  
HEATING  
TODAY 10 5 5 11  
MONTH TO DATE 148 157 -9 167  
SINCE MAR 1 1081 1195 -114 1185  
SINCE JUL 1 4880 5215 -335 4695  
 
COOLING  
TODAY 0 2 -2 0  
MONTH TO DATE 26 22 4 10  
SINCE MAR 1 26 25 1 12  
SINCE JAN 1 26 25 1 12    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 3.5  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 400 AM  
LOWEST 17 300 PM  
AVERAGE 45  
   
......................................................  
 
THE BOISE ID CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 93 1988  
MINIMUM TEMPERATURE (F) 49 28 1960  
 
SUNRISE AND SUNSET  
MAY 21 2025...........SUNRISE 614 AM MDT SUNSET 910 PM MDT  
MAY 22 2025...........SUNRISE 613 AM MDT SUNSET 911 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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