Records for Rockford Area, Illinois (RFDthr) on 09-15
Record Highs
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1: 102°F (1939)
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2: 99°F (1927)
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3: 91°F (1936)
Record Lows
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1: 35°F (2007)
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2: 37°F (2011)
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3: 37°F (1923)
Lowest Highs
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1: 74°F (1897)
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2: 72°F (1936)
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3: 71°F (1991)
Highest Lows
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1: 53°F (1993)
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2: 59°F (2013)
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3: 59°F (1959)
Highest September temperature:
103°F on 09-07-1939.
Lowest September temperature:
24°F on 09-28-1942.
Average temperature is 64.8°F
Average high is 75.8°F
Average low is 53.8°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 2.00" (1912)
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2: 1.45" (1927)
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3: 1.25" (1914)
Precipitation data from 1893 to 2022.