Records for Boise Area, Idaho (BOIthr) on 09-10
Record Highs
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1: 97°F (1990)
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2: 95°F (2011)
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3: 95°F (1993)
Record Lows
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1: 33°F (1896)
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2: 36°F (1989)
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3: 36°F (1901)
Lowest Highs
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1: 66°F (1997)
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2: 65°F (1963)
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3: 64°F (1969)
Highest Lows
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1: 59°F (1895)
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2: 60°F (1927)
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3: 63°F (1985)
Highest September temperature:
104°F on 09-07-2022.
Lowest September temperature:
23°F on 09-14-1970.
Average temperature is 68.4°F
Average high is 82.4°F
Average low is 54.4°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.48" (1980)
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2: 0.32" (1969)
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3: 0.25" (1985)
Precipitation data from 1878 to 2022.