CDUS46 KBOI 180931
CLIONO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOISE ID
331 AM MDT MON MAY 18 2026

...................................

...THE ONTARIO OR CLIMATE SUMMARY FOR MAY 17 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         63    326 PM  98    1973  77    -14       61       
  MINIMUM         40    434 AM  29    1974  48     -8       46       
  AVERAGE         52                        63    -11       54     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          0.59 2018   0.04  -0.04      T       
  MONTH TO DATE    T                         0.60  -0.60     0.02     
  SINCE OCT 1      8.31                      7.52   0.79    10.94     
  SINCE JAN 1      4.77                      4.61   0.16     5.77     

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       13                         4      9       11        
  MONTH TO DATE   49                       101    -52       90        
  SINCE MAR 1   1020                      1056    -36     1000        
  SINCE JUL 1   4657                      5123   -466     4929        

 COOLING                                                              
  YESTERDAY        0                         2     -2        0        
  MONTH TO DATE   25                        17      8       10        
  SINCE MAR 1     25                        19      6       10        
  SINCE JAN 1     25                        19      6       10        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION    NW (320)       
  HIGHEST GUST SPEED    44   HIGHEST GUST DIRECTION    NW (310)       
  AVERAGE WIND SPEED    16.8                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.3                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  HAZE                                                                


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    67           500 AM                                      
 LOWEST     25           100 PM                                      
 AVERAGE    46                                                        

..........................................................


THE ONTARIO OR CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   77        96      1973                      
                                             2008                     
 MINIMUM TEMPERATURE (F)   49        27      1989                      


SUNRISE AND SUNSET                                                    
MAY 18 2026...........SUNRISE   619 AM MDT   SUNSET   911 PM MDT     
MAY 19 2026...........SUNRISE   618 AM MDT   SUNSET   912 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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