Records for Boise Area, Idaho (BOIthr) on 12-15
Record Highs
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1: 60°F (1929)
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2: 57°F (1939)
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3: 55°F (2002)
Record Lows
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1: -7°F (1972)
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2: -5°F (1985)
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3: -4°F (1919)
Lowest Highs
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1: 48°F (1929)
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2: 43°F (1941)
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3: 43°F (1939)
Highest Lows
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1: 9°F (1919)
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2: 15°F (1985)
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3: 19°F (1972)
Highest December temperature:
70°F on 12-10-1939.
Lowest December temperature:
-25°F on 12-22-1990.
Average temperature is 31.8°F
Average high is 38.4°F
Average low is 25.1°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.82" (2009)
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2: 0.55" (1982)
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3: 0.43" (1929)
Precipitation data from 1878 to 2022.