September weather forecast
Red Lodge, MT

A scenic undulating landscape of rocks and cliffs, mountains and valleys with snaky roads and trail paths in Red Lodge, Montana, Beartooth
A scenic undulating landscape of rocks and cliffs, mountains and valleys with snaky roads and trail paths in Red Lodge, Montana, Beartooth

Weather in September

September, the first month of the autumn in Red Lodge, is also an agreeable month, with an average temperature varying between 68.7°F (20.4°C) and 48°F (8.9°C).

Temperature

In September, the average high-temperature marginally drops from a warm 77°F (25°C) in August to an agreeable 68.7°F (20.4°C). In Red Lodge, in September, the average low-temperature is 48°F (8.9°C).

Humidity

In Red Lodge, Montana, the average relative humidity in September is 47%.

Rainfall

In September, in Red Lodge, the rain falls for 9.3 days. Throughout September, 0.98" (25mm) of precipitation is accumulated. Throughout the year, in Red Lodge, there are 138.8 rainfall days, and 16.14" (410mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Red Lodge are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1.5 snowfall days, it receives 1.54" (39mm) of snow. In Red Lodge, during the entire year, snow falls for 92.3 days and aggregates up to 55.83" (1418mm) of snow.

Daylight

In September, the average length of the day is 12h and 31min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:59 pm MDT.

Sunshine

In September, the average sunshine is 10.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in September in Red Lodge?

In Red Lodge, Montana, the average relative humidity in September is 47%.

How much does it rain in Red Lodge in September?

In Red Lodge, during September, the rain falls for 9.3 days and regularly aggregates up to 0.98" (25mm) of precipitation.

When does it start to snow in Red Lodge?

September is the first month it typically snows in Red Lodge. Throughout September, in the average 1.5 snowfall days, it receives 1.54" (39mm) of snow.

How many hours of daylight does Red Lodge have in September?

The average day length in September in Red Lodge, Montana, is 12h and 31min.

When is the sunrise / sunset in September in Red Lodge?

On the first day of September, sunrise is at 6:39 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:59 pm MDT.

How many hours of sunshine does Red Lodge have in September?

The average sunshine duration in September in Red Lodge, Montana, is 10.7h.

How high is the UV index in September in Red Lodge?

The average daily maximum UV index in September in Red Lodge is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Red Lodge, MT

Average temperature in September - Red Lodge, MT
  • Average high temperature in September: 68.7°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (27.5°F).

  • Average low temperature in September: 48°F

The month with the highest average low temperature is July (56.1°F).
The coldest months (with the lowest average low temperature) are February and December (14.9°F).

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Average pressure in September
Red Lodge, MT

Average pressure in September - Red Lodge, MT
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in September
Red Lodge, MT

Average wind speed in September - Red Lodge, MT
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in September
Red Lodge, MT

Average humidity in September - Red Lodge, MT
  • Average humidity in September: 47%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in September
Red Lodge, MT

Average rainfall in September - Red Lodge, MT
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (0.55").

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Average rainfall days in September
Red Lodge, MT

Average rainfall days in September - Red Lodge, MT
  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is November (5.7 days).

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Average snowfall in September
Red Lodge, MT

Average snowfall in September - Red Lodge, MT
  • Average snowfall in September: 1.54"

The month with the highest snowfall is April (9.37").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Red Lodge, MT

Average snowfall days in September - Red Lodge, MT
  • Average snowfall days in September: 1.5 days

The month with the highest number of snowfall days is February (14.8 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Red Lodge, MT

Average daylight in September / Average sunshine in September - Red Lodge, MT
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 35min).
The month with the shortest days is December (Average daylight: 8h and 49min).

  • Average sunshine in September: 10h and 42min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).

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Average sunshine days in September
Red Lodge, MT

Average sunshine days in September - Red Lodge, MT
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is December (17.4 days).
The month with the least sunshine days is May (5.1 days).

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Average UV index in September
Red Lodge, MT

Average UV index in September - Red Lodge, 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, April, October, November and December (UV index 2).

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Average cloud cover in September
Red Lodge, MT

Average cloud cover in September - Red Lodge, MT
  • Average cloud cover in September: 17

The month with the most cloud cover is February (Cloud cover 36).
The months with the least cloud cover are July and August (Cloud cover 16).

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Average visibility in September
Red Lodge, MT

Average visibility in September - Red Lodge, 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).

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