Weather in September
Temperature
September's onset brings a negligible change in high-temperatures, falling from a refreshing 19.8°C (67.6°F) in August to a moderate 15.9°C (60.6°F). During September, Montana's temperature averages to a chilly 6.9°C (44.4°F) at night.Humidity
The most humid month in Montana is September, with an average relative humidity of 72%.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows in Montana. Throughout September, in the average 0.1 snowfall days, it receives 8mm (0.31") of snow. Throughout the year, there are 46.9 snowfall days, and 4358mm (171.57") of snow is accumulated.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 06:51 and sunset at 20:08. On the last day of September, sunrise is at 07:27 and sunset at 19:11 CEST.
Sunshine
In Montana, the average sunshine in September is 6.7h.Frequently asked questions
What are the temperatures in Montana in September?
What is the most humid month in Montana?
What is the average humidity in September in Montana?
When does it start snowing in Montana?
How many hours of daylight does Montana have in September?
What time are sunrise and sunset in September in Montana?
How many hours of sunshine does Montana have in September?
Average temperature in September
Montana, Switzerland
- Average high temperature in September: 15.9°C
The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is January (1.6°C).
- Average low temperature in September: 6.9°C
The month with the highest average low temperature is July (9.9°C).
The coldest month (with the lowest average low temperature) is February (-5°C).
Average humidity in September
Montana, Switzerland
- Average humidity in September: 72%
The month with the highest relative humidity is September (72%).
The month with the lowest relative humidity is April (64%).
Average snowfall in September
Montana, Switzerland
- Average snowfall in September: 8mm
The month with the highest snowfall is January (1145mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Montana, Switzerland
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Montana, Switzerland
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Montana, Switzerland
Weather forecast for your location
2. Allow the app to use your location
