Weather in West Yellowstone: September
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Average day temperature: | 65.0°F |
| Average night temperature: | 45.0°F | |
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Number of sunny days: | 21 days |
| Day length: | 11.7 - 13.2 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.2 in. | |
| more information | ||
14 days
forecast
forecast
| West Yellowstone |
weather in
October
October
| West Yellowstone |
Air temperature in September, °F
Show year:
2024
2023
2022
The highest day temperature during September of 2024 was 77°F. At the same time the lowest night temperature was 33°F. Day and night temperature averages during September were 63.9°F and 46.5°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 West Yellowstone in September is 1.2 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 5.0 mph
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: 9.2.
Best time for vacation in West Yellowstone
West Yellowstone on a weather map
Places in USA:
Name
°F
24 Hours Forecast
West Yellowstone
Local time: 01:35
December 22, sunday
0300
28°F
NE
9 mph
9 mph
0600
28°F
NE
6 mph
6 mph
0900
27°F
NE
6 mph
6 mph
1200
28°F
NE
9 mph
9 mph
1500
27°F
NE
11 mph
11 mph
1800
27°F
NE
7 mph
7 mph
2100
27°F
NE
4 mph
4 mph
December 23, monday
0000
27°F
NE
5 mph
5 mph
