Records for Boise Area, Idaho (BOIthr) on 09-28
Record Highs
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1: 95°F (1963)
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2: 93°F (2016)
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3: 91°F (2022)
Record Lows
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1: 30°F (1881)
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2: 31°F (1999)
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3: 32°F (1984)
Lowest Highs
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1: 60°F (1938)
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2: 58°F (2022)
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3: 58°F (2004)
Highest Lows
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1: 52°F (1925)
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2: 52°F (1905)
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3: 54°F (1940)
Highest September temperature:
104°F on 09-07-2022.
Lowest September temperature:
23°F on 09-14-1970.
Average temperature is 61.6°F
Average high is 74.6°F
Average low is 48.6°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.34" (2014)
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2: 0.26" (1925)
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3: 0.25" (1962)
Precipitation data from 1878 to 2022.