645
CDUS45 KBOI 180931
CLIBOI
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
331 AM MDT MON MAY 18 2026
...............................
..THE BOISE ID CLIMATE SUMMARY FOR MAY 17 2026
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)
YESTERDAY
MAXIMUM 64 307 PM 94 2008 73 -9 55
MINIMUM 38 526 AM 30 1942 48 -10 50
AVERAGE 51 60 -9 53
PRECIPITATION (IN)
YESTERDAY 0.00 0.85 1915 0.05 -0.05 0.32
MONTH TO DATE T 0.80 -0.80 0.75
SINCE OCT 1 10.90 9.30 1.60 10.66
SINCE JAN 1 6.55 5.77 0.78 6.25
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2007 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUL 1 1.8 17.6 -15.8 13.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 14 6 8 12
MONTH TO DATE 53 135 -82 101
SINCE MAR 1 899 1173 -274 1034
SINCE JUL 1 4144 5193 -1049 4833
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 23 14 9 26
SINCE MAR 1 24 17 7 26
SINCE JAN 1 24 17 7 26
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 16.6
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 700 AM
LOWEST 21 500 PM
AVERAGE 46
......................................................
THE BOISE ID CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 95 2009
MINIMUM TEMPERATURE (F) 48 30 1971
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 617 AM MDT SUNSET 906 PM MDT
MAY 19 2026...........SUNRISE 616 AM MDT SUNSET 907 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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