Records for Ontario Area, Oregon (ONOthr) on 12-18
Record Highs
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1: 54°F (1973)
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2: 51°F (2018)
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3: 51°F (1956)
Record Lows
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1: -11°F (2016)
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2: -8°F (1945)
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3: -4°F (2005)
Lowest Highs
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1: 38°F (1962)
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2: 36°F (1957)
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3: 35°F (2007)
Highest Lows
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1: 11°F (2016)
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2: 15°F (1985)
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3: 17°F (1975)
Highest December temperature:
66°F on 12-22-1955.
Lowest December temperature:
-23°F on 12-10-1972.
Average temperature is 28.6°F
Average high is 35.4°F
Average low is 21.8°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.39" (1960)
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2: 0.32" (2010)
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3: 0.31" (2018)
Precipitation data from 1945 to 2022.