588
CDUS46 KBOI 200933
CLIONO
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
333 AM MDT WED MAY 20 2026
...............................
..THE ONTARIO OR CLIMATE SUMMARY FOR MAY 19 2026
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)
YESTERDAY
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)
YESTERDAY 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
YESTERDAY 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
YESTERDAY 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 N (20)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 3.8
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 600 AM
LOWEST 20 500 PM
AVERAGE 45
......................................................
THE ONTARIO OR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 94 2023
MINIMUM TEMPERATURE (F) 49 35 1971
1976
2003
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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