Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With September's arrival, Dutton sees a decrease in average high-temperatures, moving from a warm 79°F (26.1°C) in August to an agreeable 68.2°F (20.1°C). The average low-temperature of 48.6°F (9.2°C) is witnessed during September.Humidity
The average relative humidity in September is 48%.Rainfall
In Dutton, Montana, during September, the rain falls for 6.1 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Dutton, during the entire year, the rain falls for 73.3 days and collects up to 9.17" (233mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Dutton. September is the first month it typically snows in Dutton. Throughout September, in the average 0.7 snowfall days, it receives 0.55" (14mm) of snow. Throughout the year, there are 50.3 snowfall days, and 21.26" (540mm) of snow is accumulated.Daylight
In September, the average length of the day in Dutton is 12h and 33min.On the first day of September in Dutton, Montana, sunrise is at 6:46 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:07 pm MDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Dutton?
What is the average humidity in September in Dutton?
How many days does it rain in September in Dutton?
When does it start snowing in Dutton?
What is the average length of the day in September in Dutton?
When are sunrise and sunset in September in Dutton?
How many hours of sunshine does Dutton have in September?
What is the UV index intensity in September in Dutton?
Average temperature in September
Dutton, MT
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.8°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure in September
Dutton, MT
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Dutton, MT
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in September
Dutton, MT
- Average humidity in September: 48%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (42%).
Average rainfall in September
Dutton, MT
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in September
Dutton, MT
- Average rainfall days in September: 6.1 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in September
Dutton, MT
- Average snowfall in September: 0.55"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Dutton, MT
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Dutton, MT
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Dutton, MT
- Average sunshine days in September: 21 days
The month with the most sunshine days is October (23.2 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in September
Dutton, MT
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Dutton, MT
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in September
Dutton, MT
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Dutton, Montana, USA
Weather forecast for your location
2. Allow the app to use your location