Records for Boise Area, Idaho (BOIthr) on 09-24
Record Highs
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1: 98°F (2011)
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2: 95°F (2014)
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3: 94°F (1947)
Record Lows
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1: 23°F (1926)
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2: 28°F (1984)
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3: 30°F (1961)
Lowest Highs
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1: 65°F (1949)
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2: 62°F (2014)
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3: 62°F (2001)
Highest Lows
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1: 48°F (1934)
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2: 50°F (1926)
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3: 52°F (2005)
Highest September temperature:
104°F on 09-07-2022.
Lowest September temperature:
23°F on 09-14-1970.
Average temperature is 63.3°F
Average high is 76.5°F
Average low is 50°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.64" (1986)
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2: 0.54" (1977)
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3: 0.46" (1973)
Precipitation data from 1878 to 2022.