Records for Boise Area, Idaho (BOIthr) on 09-17
Record Highs
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1: 95°F (1998)
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2: 95°F (1981)
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3: 94°F (1929)
Record Lows
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1: 24°F (1965)
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2: 33°F (1978)
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3: 34°F (1949)
Lowest Highs
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1: 69°F (2014)
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2: 67°F (1998)
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3: 65°F (1920)
Highest Lows
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1: 53°F (1965)
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2: 55°F (1908)
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3: 58°F (1978)
Highest September temperature:
104°F on 09-07-2022.
Lowest September temperature:
23°F on 09-14-1970.
Average temperature is 66°F
Average high is 79.6°F
Average low is 52.3°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.65" (1989)
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2: 0.48" (1908)
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3: 0.44" (1985)
Precipitation data from 1878 to 2022.