856
CDUS46 KBOI 171036
CLIONO
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
336 AM MST WED DEC 17 2025
...............................
..THE ONTARIO OR CLIMATE SUMMARY FOR DECEMBER 16 2025
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)
YESTERDAY
MAXIMUM 43 437 PM 55 2002 38 5 37
MINIMUM 29 857 AM -5 1985 24 5 33
AVERAGE 36 31 5 35
PRECIPITATION (IN)
YESTERDAY T 0.62 1995 0.05 -0.05 0.39
MONTH TO DATE 0.34 0.67 -0.33 1.12
SINCE OCT 1 1.53 2.19 -0.66 3.56
SINCE JAN 1 9.31 8.76 0.55 11.06
DEGREE DAYS
HEATING
YESTERDAY 29 34 -5 30
MONTH TO DATE 439 516 -77 542
SINCE DEC 1 439 516 -77 542
SINCE JUL 1 1533 1734 -201 1594
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1163 1100 63 1322
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 2.1
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 73 300 PM
AVERAGE 87
......................................................
THE ONTARIO OR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 38 51 1957
MINIMUM TEMPERATURE (F) 24 -11 1964
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 817 AM MST SUNSET 511 PM MST
DECEMBER 18 2025......SUNRISE 818 AM MST SUNSET 512 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page