660
CDUS46 KBOI 210122
CLIONO
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
722 PM MDT WED MAY 20 2026
...............................
..THE ONTARIO OR CLIMATE SUMMARY FOR MAY 20 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 76 536 PM 94 2023 78 -2 69
MINIMUM 42 456 AM 35 1971 49 -7 48
1976
2003
AVERAGE 59 64 -5 59
PRECIPITATION (IN)
TODAY 0.00 0.65 2019 0.04 -0.04 T
MONTH TO DATE T 0.72 -0.72 0.02
SINCE OCT 1 8.31 7.64 0.67 10.94
SINCE JAN 1 4.77 4.73 0.04 5.77
DEGREE DAYS
HEATING
TODAY 6 4 2 6
MONTH TO DATE 73 113 -40 120
SINCE MAR 1 1044 1068 -24 1030
SINCE JUL 1 4681 5135 -454 4959
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 25 23 2 10
SINCE MAR 1 25 25 0 10
SINCE JAN 1 25 25 0 10
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 2.4
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 400 AM
LOWEST 23 500 PM
AVERAGE 47
......................................................
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 2026...........SUNRISE 617 AM MDT SUNSET 913 PM MDT
MAY 21 2026...........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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