September weather forecast
Eagle Lake Ranch, MT

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Eagle Lake Ranch, Montana, with temperature in the range of an average high of 18.8°C and an average low of 3.7°C.

Temperature

The arrival of September corresponds with a reduction in the average high-temperature, down from August's warm 25.1°C to an enjoyable 18.8°C. Compared to daytime temperatures, Eagle Lake Ranch's temperature drops significantly, averaging an icy 3.7°C during the nights of September.

Humidity

The average relative humidity in September is 64%.

Rainfall

In Eagle Lake Ranch, in September, it is raining for 8.8 days, with typically 20mm of accumulated precipitation. Throughout the year, in Eagle Lake Ranch, there are 136.3 rainfall days, and 390mm of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 7mm of snow. Throughout the year, there are 110.7 snowfall days, and 1189mm of snow is accumulated.

Daylight

In September, the average length of the day in Eagle Lake Ranch is 12h and 34min.
On the first day of the month, sunrise is at 6:57 am and sunset at 8:20 pm. On the last day of September, sunrise is at 7:38 am and sunset at 7:19 pm MDT.

Sunshine

The average sunshine in September is 9.1h.

UV index

The average daily maximum UV index in September in Eagle Lake Ranch is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 3 in September suggests the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Eagle Lake Ranch in September?
The high-temperature during September is 18.8°C and the low-temperature is 3.7°C.
What is the average humidity in September?
The average relative humidity in September is 64%.
How much does it rain in September?
In Eagle Lake Ranch, in September, during 8.8 rainfall days, 20mm of precipitation is typically accumulated.
When does it start snowing?
September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 7mm of snow.
What is the average length of the day in September?
In September, the average day length is 12h and 34min.
When are sunrise and sunset in September?
On the first day of September, sunrise is at 6:57 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:19 pm MDT.
How many hours of sunshine does Eagle Lake Ranch have in September?
The average sunshine duration in September is 9.1h.
How high is the UV index in September?
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Eagle Lake Ranch, MT
Average temperature in September
Eagle Lake Ranch, MT
  • Average high temperature in September: 18.8°C

The warmest month (with the highest average high temperature) is July (25.2°C).
The month with the lowest average high temperature is December (-3.6°C).

  • Average low temperature in September: 3.7°C

The month with the highest average low temperature is August (7.3°C).
The coldest month (with the lowest average low temperature) is December (-10.5°C).

Average pressure in September - Eagle Lake Ranch, MT
Average pressure in September
Eagle Lake Ranch, MT
  • Average pressure in September: 1015.1mbar

The month with the highest atmospheric pressure is January (1021.8mbar).
The month with the lowest atmospheric pressure is June (1012.9mbar).

Average wind speed in September - Eagle Lake Ranch, MT
Average wind speed in September
Eagle Lake Ranch, MT
  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is June (7.1km/h).
The calmest month (with the lowest average wind speed) is December (5.5km/h).

Average humidity in September - Eagle Lake Ranch, MT
Average humidity in September
Eagle Lake Ranch, MT
  • Average humidity in September: 64%

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September - Eagle Lake Ranch, MT
Average rainfall in September
Eagle Lake Ranch, MT
  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is March (47mm).
The driest month (with the least rainfall) is August (10mm).

Average rainfall days in September - Eagle Lake Ranch, MT
Average rainfall days in September
Eagle Lake Ranch, MT
  • Average rainfall days in September: 8.8 days

The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in September - Eagle Lake Ranch, MT
Average snowfall in September
Eagle Lake Ranch, MT
  • Average snowfall in September: 7mm

The month with the highest snowfall is February (254mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in September - Eagle Lake Ranch, MT
Average snowfall days in September
Eagle Lake Ranch, MT
  • Average snowfall days in September: 0.4 days

The month with the highest number of snowfall days is December (22.1 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September / Average sunshine in September - Eagle Lake Ranch, MT
Average daylight in September /
Average sunshine in September
Eagle Lake Ranch, MT
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in September - Eagle Lake Ranch, MT
Average sunshine days in September
Eagle Lake Ranch, MT
  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (6.3 days).

Average UV index in September - Eagle Lake Ranch, MT
Average UV index in September
Eagle Lake Ranch, MT
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in September - Eagle Lake Ranch, MT
Average cloud cover in September
Eagle Lake Ranch, MT
  • Average cloud cover in September: 26

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in September - Eagle Lake Ranch, MT
Average visibility in September
Eagle Lake Ranch, MT
  • Average visibility in September: 9km

The months with the highest visibility are July and August (10km).
The month with the lowest visibility is January (4km).

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