Records for Ontario Area, Oregon (ONOthr) on 05-22
Record Highs
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1: 95°F (1967)
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2: 95°F (1956)
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3: 93°F (1988)
Record Lows
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1: 26°F (1960)
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2: 32°F (1973)
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3: 33°F (1986)
Lowest Highs
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1: 65°F (2000)
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2: 56°F (2018)
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3: 56°F (1988)
Highest Lows
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1: 54°F (1998)
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2: 56°F (2010)
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3: 58°F (2021)
Highest May temperature:
103°F on 05-29-1986.
Lowest May temperature:
25°F on 05-01-1946.
Average temperature is 62.2°F
Average high is 75.6°F
Average low is 48.7°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.20" (2021)
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2: 0.20" (1998)
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3: 0.19" (2006)
Precipitation data from 1945 to 2022.