641
CDUS45 KBOI 210121
CLIBOI
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
721 PM MDT SUN SEP 20 2026
...............................
..THE BOISE ID CLIMATE SUMMARY FOR SEPTEMBER 20 2026
VALID TODAY AS OF 0700 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1875 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 80 456 PM 94 1922 78 2 88
MINIMUM 56 552 AM 32 1924 51 5 61
AVERAGE 68 65 3 75
PRECIPITATION (IN)
TODAY 0.00 0.90 2008 0.01 -0.01 0.00
MONTH TO DATE 0.36 0.25 0.11 0.06
SINCE OCT 1 12.21 11.33 0.88 11.78
SINCE JAN 1 7.86 7.80 0.06 7.37
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 37 37 0 3
SINCE SEP 1 37 37 0 3
SINCE JUL 1 38 50 -12 3
COOLING
TODAY 3 3 0 10
MONTH TO DATE 47 100 -53 164
SINCE SEP 1 47 100 -53 164
SINCE JAN 1 1190 1015 175 1227
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WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 6.4
RELATIVE HUMIDITY (PERCENT)
HIGHEST 69 500 AM
LOWEST 30 500 PM
AVERAGE 50
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THE BOISE ID CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 95 1967
MINIMUM TEMPERATURE (F) 51 30 1993
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 730 AM MDT SUNSET 746 PM MDT
SEPTEMBER 21 2026.....SUNRISE 731 AM MDT SUNSET 744 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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