Records for Boise Area, Idaho (BOIthr) on 12-22
Record Highs
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1: 65°F (1964)
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2: 62°F (1955)
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3: 61°F (2019)
Record Lows
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1: -25°F (1990)
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2: -15°F (1983)
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3: -5°F (1985)
Lowest Highs
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1: 47°F (1964)
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2: 46°F (1936)
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3: 44°F (1933)
Highest Lows
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1: -6°F (1990)
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2: 7°F (1983)
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3: 15°F (1998)
Highest December temperature:
70°F on 12-10-1939.
Lowest December temperature:
-25°F on 12-22-1990.
Average temperature is 31°F
Average high is 37.6°F
Average low is 24.5°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 0.73" (1964)
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2: 0.71" (1913)
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3: 0.47" (1884)
Precipitation data from 1878 to 2022.