Records for Ontario Area, Oregon (ONOthr) on 05-20
Record Highs
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1: 93°F (1980)
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2: 93°F (1958)
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3: 92°F (1963)
Record Lows
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1: 35°F (2003)
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2: 35°F (1976)
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3: 35°F (1971)
Lowest Highs
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1: 58°F (1954)
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2: 57°F (2006)
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3: 57°F (1993)
Highest Lows
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1: 54°F (1962)
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2: 56°F (2020)
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3: 57°F (2016)
Highest May temperature:
103°F on 05-29-1986.
Lowest May temperature:
25°F on 05-01-1946.
Average temperature is 61.6°F
Average high is 75.1°F
Average low is 48.1°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.65" (2019)
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2: 0.62" (2020)
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3: 0.30" (1981)
Precipitation data from 1945 to 2022.