Records for Ontario Area, Oregon (ONOthr) on 12-17
Record Highs
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1: 51°F (1957)
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2: 48°F (2012)
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3: 47°F (2002)
Record Lows
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1: -11°F (1964)
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2: -4°F (2016)
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3: -4°F (1985)
Lowest Highs
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1: 39°F (1962)
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2: 37°F (1973)
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3: 36°F (2018)
Highest Lows
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1: 10°F (1964)
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2: 14°F (1985)
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3: 17°F (2016)
Highest December temperature:
66°F on 12-22-1955.
Lowest December temperature:
-23°F on 12-10-1972.
Average temperature is 28.7°F
Average high is 35.6°F
Average low is 21.8°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.54" (2015)
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2: 0.50" (1972)
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3: 0.40" (1973)
Precipitation data from 1945 to 2022.