Records for Rapid City Area, South Dakota (RAPthr) on 09-11

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Record Highs
Record Lows
Lowest Highs
Highest Lows
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 64.6°F
Average high is 76.5°F
Average low is 52.8°F
Temperature data from 1942 to 2022.

Record Precipitation
Precipitation data from 1942 to 2022.
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Record temperature data from ThreadEx version 18.2 (includes data through 2022). Averages from NCDC 1991-2020 U.S. Climate Normals.