Records for Olympia Area, Washington (OLMthr) on 09-20
Record Highs
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1: 92°F (1974)
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2: 85°F (1952)
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3: 84°F (1976)
Record Lows
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1: 32°F (1983)
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2: 34°F (1993)
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3: 34°F (1971)
Lowest Highs
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1: 58°F (1992)
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2: 58°F (1979)
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3: 58°F (1962)
Highest Lows
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1: 56°F (2006)
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2: 57°F (1978)
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3: 58°F (2017)
Highest September temperature:
98°F on 09-02-1988.
Lowest September temperature:
25°F on 09-27-1972.
Average temperature is 58.2°F
Average high is 71°F
Average low is 45.5°F
Temperature data from 1948 to 2022.
Record Precipitation
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1: 1.11" (1972)
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2: 0.37" (1978)
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3: 0.31" (2010)
Precipitation data from 1948 to 2022.