Records for Ontario Area, Oregon (ONOthr) on 05-26
Record Highs
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1: 102°F (1966)
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2: 100°F (1958)
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3: 94°F (1986)
Record Lows
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1: 30°F (1975)
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2: 34°F (1978)
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3: 34°F (1967)
Lowest Highs
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1: 65°F (2009)
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2: 63°F (1948)
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3: 62°F (2001)
Highest Lows
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1: 49°F (1998)
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2: 51°F (1980)
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3: 57°F (1953)
Highest May temperature:
103°F on 05-29-1986.
Lowest May temperature:
25°F on 05-01-1946.
Average temperature is 63.2°F
Average high is 76.6°F
Average low is 49.7°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.58" (1987)
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2: 0.35" (1982)
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3: 0.31" (2019)
Precipitation data from 1945 to 2022.