Records for Boise Area, Idaho (BOIthr) on 05-15
Record Highs
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1: 93°F (2006)
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2: 91°F (1988)
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3: 90°F (1973)
Record Lows
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1: 28°F (1990)
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2: 29°F (1896)
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3: 31°F (1974)
Lowest Highs
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1: 62°F (1992)
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2: 62°F (1987)
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3: 60°F (1893)
Highest Lows
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1: 45°F (1984)
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2: 49°F (1955)
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3: 51°F (1906)
Highest May temperature:
100°F on 05-29-1897.
Lowest May temperature:
22°F on 05-05-1982.
Average temperature is 59.9°F
Average high is 72.3°F
Average low is 47.5°F
Temperature data from 1875 to 2022.
Record Precipitation
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1: 1.65" (1911)
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2: 0.53" (1959)
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3: 0.30" (1883)
Precipitation data from 1878 to 2022.