Weather in Rapid City: September
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Average day temperature: | 77.0°F |
| Average night temperature: | 57.9°F | |
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Number of sunny days: | 24 days |
| Day length: | 11.8 - 13.2 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.4 in. | |
| more information | ||
14 days
forecast
forecast
| Rapid City |
weather in
October
October
| Rapid City |
Air temperature in September, °F
Show year:
2024
2023
2022
The highest day temperature during September of 2024 was 94°F. At the same time the lowest night temperature was 47°F. Day and night temperature averages during September were 80.3°F and 62.5°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Rapid City in September is 0.4 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 8.1 mph It makes September one of the least windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 10.4.
Best time for vacation in Rapid City
Rapid City on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Rapid City
Local time: 01:18
December 22, sunday
0300
45°F
E
5 mph
5 mph
0600
43°F
E
2 mph
2 mph
0900
41°F
SE
6 mph
6 mph
1200
46°F
SE
19 mph
19 mph
1500
48°F
SE
17 mph
17 mph
1800
45°F
S
8 mph
8 mph
2100
37°F
E
6 mph
6 mph
December 23, monday
0000
36°F
E
6 mph
6 mph
