Records for Boise Area, Idaho (BOIthr) on 09-25
Record Highs
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1: 95°F (2015)
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2: 95°F (1963)
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3: 93°F (1877)
Record Lows
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1: 28°F (1972)
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2: 28°F (1926)
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3: 30°F (1970)
Lowest Highs
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1: 63°F (2011)
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2: 60°F (1997)
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3: 60°F (1939)
Highest Lows
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1: 51°F (1934)
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2: 54°F (2013)
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3: 54°F (1948)
Highest September temperature:
104°F on 09-07-2022.
Lowest September temperature:
23°F on 09-14-1970.
Average temperature is 62.9°F
Average high is 76°F
Average low is 49.7°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.51" (1998)
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2: 0.49" (1982)
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3: 0.33" (1885)
Precipitation data from 1878 to 2022.