Records for Boise Area, Idaho (BOIthr) on 12-17
Record Highs
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1: 55°F (1917)
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2: 54°F (1877)
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3: 52°F (1888)
Record Lows
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1: -2°F (1985)
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2: -1°F (1924)
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3: 1°F (2016)
Lowest Highs
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1: 42°F (1917)
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2: 40°F (1885)
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3: 39°F (1962)
Highest Lows
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1: 8°F (1924)
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2: 16°F (1985)
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3: 17°F (1964)
Highest December temperature:
70°F on 12-10-1939.
Lowest December temperature:
-25°F on 12-22-1990.
Average temperature is 31.5°F
Average high is 38.1°F
Average low is 24.9°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 1.14" (1884)
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2: 0.39" (1972)
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3: 0.35" (1913)
Precipitation data from 1878 to 2022.