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
Elliston's progression into September involves a drop in the average high-temperature, receding from a warm 76.6°F (24.8°C) in August to a comfortable 66.2°F (19°C). Marked by a significant drop from the daytime highs, Elliston's average low-temperature in September stands at a wintry 42.4°F (5.8°C).Humidity
In Elliston, the average relative humidity in September is 54%.Rainfall
In Elliston, Montana, in September, it is raining for 7.6 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 106.9 rainfall days, and 13.27" (337mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1.8 snowfall days, it receives 3.03" (77mm) of snow. In Elliston, during the entire year, snow falls for 92.7 days and aggregates up to 45.59" (1158mm) of snow.Daylight
In Elliston, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 6:50 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:10 pm MDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
What is the average length of the day in September in Elliston?
What time are sunrise and sunset in September?
How many hours of sunshine does Elliston have in September?
What is the UV index reading in September?
Average temperature in September
Elliston, MT
- Average high temperature in September: 66.2°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (26.2°F).
- Average low temperature in September: 42.4°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in September
Elliston, MT
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Elliston, MT
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is November (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Elliston, MT
- Average humidity in September: 54%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (48%).
Average rainfall in September
Elliston, MT
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is June (2.6").
The driest months (with the least rainfall) are January and December (0.59").
Average rainfall days in September
Elliston, MT
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Elliston, MT
- Average snowfall in September: 3.03"
The month with the highest snowfall is February (7.13").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Elliston, MT
- Average snowfall days in September: 1.8 days
The month with the highest number of snowfall days is February (15.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Elliston, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Elliston, MT
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in September
Elliston, MT
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Elliston, MT
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in September
Elliston, MT
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Elliston, Montana, USA
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