CDUS46 KBOI 200121
CLIONO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BOISE ID
721 PM MDT TUE MAY 19 2026

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

...THE ONTARIO OR CLIMATE SUMMARY FOR MAY 19 2026...
VALID TODAY AS OF 0700 PM LOCAL TIME.

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)                                                          
 TODAY                                                               
  MAXIMUM         73    419 PM  95    1954  78     -5       68       
  MINIMUM         40    537 AM  31    1960  49     -9       37       
                                      2003                           
  AVERAGE         57                        63     -6       53     

PRECIPITATION (IN)                                                    
  TODAY            0.00          0.89 1953   0.04  -0.04      T       
  MONTH TO DATE    T                         0.68  -0.68     0.02     
  SINCE OCT 1      8.31                      7.60   0.71    10.94     
  SINCE JAN 1      4.77                      4.69   0.08     5.77     

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY            8                         4      4       12        
  MONTH TO DATE   67                       109    -42      114        
  SINCE MAR 1   1038                      1064    -26     1024        
  SINCE JUL 1   4675                      5131   -456     4953        

 COOLING                                                              
  TODAY            0                         2     -2        0        
  MONTH TO DATE   25                        21      4       10        
  SINCE MAR 1     25                        23      2       10        
  SINCE JAN 1     25                        23      2       10        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     W (260)       
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     N (20)        
  AVERAGE WIND SPEED     4.7                                        


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70           600 AM                                      
 LOWEST     20           500 PM                                      
 AVERAGE    45                                                        

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


THE ONTARIO OR CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   78        94      2023                      
 MINIMUM TEMPERATURE (F)   49        35      1971                      
                                             1976                     
                                             2003                     


SUNRISE AND SUNSET                                                    
MAY 19 2026...........SUNRISE   618 AM MDT   SUNSET   912 PM MDT     
MAY 20 2026...........SUNRISE   617 AM MDT   SUNSET   913 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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