Records for Boise Area, Idaho (BOIthr) on 09-09
Record Highs
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1: 98°F (2021)
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2: 95°F (1997)
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3: 93°F (2012)
Record Lows
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1: 34°F (1970)
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2: 36°F (1945)
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3: 36°F (1903)
Lowest Highs
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1: 69°F (2017)
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2: 68°F (1969)
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3: 67°F (2012)
Highest Lows
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1: 55°F (1985)
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2: 58°F (1884)
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3: 59°F (1916)
Highest September temperature:
104°F on 09-07-2022.
Lowest September temperature:
23°F on 09-14-1970.
Average temperature is 68.7°F
Average high is 82.8°F
Average low is 54.6°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.75" (1950)
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2: 0.46" (1998)
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3: 0.33" (1985)
Precipitation data from 1878 to 2022.