615  
CDUS46 KBOI 210120  
CLIONO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOISE ID  
720 PM MDT TUE MAY 20 2025  
   
...............................  
 
   
..THE ONTARIO OR CLIMATE SUMMARY FOR MAY 20 2025  
 
VALID TODAY AS OF 0700 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1948 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 69 559 PM 94 2023 78 -9 72  
MINIMUM 48 328 AM 35 1971 49 -1 46  
1976  
2003  
AVERAGE 59 64 -5 59  
 
PRECIPITATION (IN)  
TODAY T 0.65 2019 0.04 -0.04 T  
MONTH TO DATE 0.02 0.72 -0.70 0.62  
SINCE OCT 1 10.94 7.64 3.30 7.95  
SINCE JAN 1 5.77 4.73 1.04 5.84  
 
DEGREE DAYS  
HEATING  
TODAY 6 4 2 6  
MONTH TO DATE 120 113 7 130  
SINCE MAR 1 1030 1068 -38 1086  
SINCE JUL 1 4959 5135 -176 4760  
 
COOLING  
TODAY 0 2 -2 0  
MONTH TO DATE 10 23 -13 29  
SINCE MAR 1 10 25 -15 29  
SINCE JAN 1 10 25 -15 29    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.3  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 200 AM  
LOWEST 21 500 PM  
AVERAGE 52  
   
......................................................  
 
THE ONTARIO OR CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 96 1967  
MINIMUM TEMPERATURE (F) 50 30 1974  
 
SUNRISE AND SUNSET  
MAY 20 2025...........SUNRISE 617 AM MDT SUNSET 913 PM MDT  
MAY 21 2025...........SUNRISE 616 AM MDT SUNSET 914 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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