Records for Ontario Area, Oregon (ONOthr) on 05-04
Record Highs
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1: 98°F (1966)
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2: 91°F (1970)
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3: 88°F (1947)
Record Lows
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1: 28°F (1964)
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2: 30°F (2011)
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3: 30°F (1984)
Lowest Highs
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1: 54°F (1979)
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2: 52°F (2021)
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3: 52°F (2004)
Highest Lows
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1: 52°F (1975)
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2: 55°F (2012)
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3: 55°F (1999)
Highest May temperature:
103°F on 05-29-1986.
Lowest May temperature:
25°F on 05-01-1946.
Average temperature is 56.2°F
Average high is 69.6°F
Average low is 42.9°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.69" (2012)
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2: 0.46" (1957)
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3: 0.33" (1988)
Precipitation data from 1945 to 2022.