Records for Boise Area, Idaho (BOIthr) on 12-31
Record Highs
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1: 58°F (1996)
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2: 52°F (1933)
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3: 51°F (1917)
Record Lows
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1: -9°F (1978)
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2: -7°F (1884)
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3: -4°F (1882)
Lowest Highs
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1: 48°F (1996)
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2: 43°F (2005)
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3: 40°F (1942)
Highest Lows
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1: 10°F (1915)
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2: 11°F (1978)
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3: 11°F (1884)
Highest December temperature:
70°F on 12-10-1939.
Lowest December temperature:
-25°F on 12-22-1990.
Average temperature is 30.9°F
Average high is 37.3°F
Average low is 24.4°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.52" (1931)
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2: 0.33" (1913)
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3: 0.28" (1880)
Precipitation data from 1878 to 2022.