400  
CDUS46 KBOI 010931  
CLIONO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOISE ID  
331 AM MDT MON JUN 01 2026  
   
...............................
 
 
   
..THE ONTARIO OR CLIMATE SUMMARY FOR MAY 31 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 602 PM 101 1972 80 -3 98  
MINIMUM 49 610 AM 34 1990 52 -3 50  
AVERAGE 63 66 -3 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.52 1954 0.04 -0.04 0.00  
MONTH TO DATE 0.02 1.17 -1.15 0.10  
SINCE OCT 1 8.33 8.09 0.24 11.02  
SINCE JAN 1 4.79 5.18 -0.39 5.85  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 2 0 0  
MONTH TO DATE 81 146 -65 135  
SINCE MAR 1 1052 1101 -49 1045  
SINCE JUL 1 4689 5168 -479 4974  
 
COOLING  
YESTERDAY 0 4 -4 9  
MONTH TO DATE 51 57 -6 57  
SINCE MAR 1 51 59 -8 57  
SINCE JAN 1 51 59 -8 57    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 8.5  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 46 600 AM  
LOWEST 13 600 PM  
AVERAGE 30  
   
......................................................
 
 
THE ONTARIO OR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 99 1986  
MINIMUM TEMPERATURE (F) 52 34 1984  
 
SUNRISE AND SUNSET  
JUNE 1 2026..........SUNRISE 608 AM MDT SUNSET 924 PM MDT  
JUNE 2 2026..........SUNRISE 608 AM MDT SUNSET 925 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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