Records for Ontario Area, Oregon (ONOthr) on 12-21
Record Highs
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1: 59°F (1957)
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2: 53°F (1955)
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3: 52°F (1961)
Record Lows
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1: -20°F (1990)
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2: -7°F (1984)
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3: -5°F (1985)
Lowest Highs
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1: 41°F (2014)
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2: 41°F (1955)
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3: 40°F (1957)
Highest Lows
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1: 5°F (1990)
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2: 13°F (1998)
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3: 14°F (1984)
Highest December temperature:
66°F on 12-22-1955.
Lowest December temperature:
-23°F on 12-10-1972.
Average temperature is 28.3°F
Average high is 35°F
Average low is 21.6°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.53" (2008)
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2: 0.48" (1945)
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3: 0.32" (1973)
Precipitation data from 1945 to 2022.