September weather forecast
Coffee Creek, MT

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Weather in September

September, the first month of the autumn in Coffee Creek, is still a refreshing month, with an average temperature varying between 47.1°F (8.4°C) and 67.5°F (19.7°C).

Temperature

The average high-temperature drops in September, from August's warm 78.1°F (25.6°C) to an enjoyable 67.5°F (19.7°C). The average temperature during September nights in Coffee Creek is registered at a chilly 47.1°F (8.4°C).

Humidity

The average relative humidity in September is 52%.

Rainfall

In September, in Coffee Creek, Montana, the rain falls for 8.7 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Coffee Creek, during the entire year, the rain falls for 126.2 days and collects up to 17.83" (453mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Coffee Creek. September is the first month it typically snows in Coffee Creek, Montana. Throughout September, in the average 1 snowfall days, it receives 1.3" (33mm) of snow. Throughout the year, in Coffee Creek, Montana, there are 83.4 snowfall days, and 45.51" (1156mm) of snow is accumulated.

Daylight

The average length of the day in September is 12h and 32min.
On the first day of September in Coffee Creek, sunrise is at 6:40 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:01 pm MDT.

Sunshine

In Coffee Creek, the average sunshine in September is 10h.

UV index

In September, the average daily maximum UV index in Coffee Creek is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What is the temperature in September in Coffee Creek?

Coffee Creek in September has an average high-temperature of 67.5°F (19.7°C) and an average low-temperature of 47.1°F (8.4°C).

What is the average humidity in September in Coffee Creek?

In September, the average relative humidity in Coffee Creek, Montana, is 52%.

How much does it rain in Coffee Creek in September?

In September, in Coffee Creek, Montana, the rain falls for 8.7 days. Throughout September, 1.02" (26mm) of precipitation is accumulated.

When does it start snowing in Coffee Creek?

September is the first month it typically snows in Coffee Creek. Throughout September, in the average 1 snowfall days, it receives 1.3" (33mm) of snow.

What is the average length of the day in September in Coffee Creek?

The average day length in September is 12h and 32min.

When is the sunrise / sunset in September in Coffee Creek?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:01 pm MDT.

How many hours of sunshine does Coffee Creek have in September?

In September, the average sunshine duration in Coffee Creek, Montana, is 10h.

What is the UV index intensity in September in Coffee Creek?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Coffee Creek, MT

Average temperature in September - Coffee Creek, MT
  • Average high temperature in September: 67.5°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The months with the lowest average high temperature are February and December (29.1°F).

  • Average low temperature in September: 47.1°F

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).

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Average pressure in September
Coffee Creek, MT

Average pressure in September - Coffee Creek, MT
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in September
Coffee Creek, MT

Average wind speed in September - Coffee Creek, MT
  • Average wind speed in September: 8.5mph

The windiest months (with the highest average wind speed) are January, April and October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

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Average humidity in September
Coffee Creek, MT

Average humidity in September - Coffee Creek, MT
  • Average humidity in September: 52%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in September
Coffee Creek, MT

Average rainfall in September - Coffee Creek, MT
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (0.71").

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Average rainfall days in September
Coffee Creek, MT

Average rainfall days in September - Coffee Creek, MT
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (5.4 days).

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Average snowfall in September
Coffee Creek, MT

Average snowfall in September - Coffee Creek, MT
  • Average snowfall in September: 1.3"

The month with the highest snowfall is April (9.13").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Coffee Creek, MT

Average snowfall days in September - Coffee Creek, MT
  • Average snowfall days in September: 1 days

The month with the highest number of snowfall days is February (15.2 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
Coffee Creek, MT

Average daylight in September / Average sunshine in September - Coffee Creek, MT
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

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Average sunshine days in September
Coffee Creek, MT

Average sunshine days in September - Coffee Creek, MT
  • Average sunshine days in September: 19.3 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (8.3 days).

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Average UV index in September
Coffee Creek, MT

Average UV index in September - Coffee Creek, 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
Coffee Creek, MT

Average cloud cover in September - Coffee Creek, MT
  • Average cloud cover in September: 23

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 16).

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Average visibility in September
Coffee Creek, MT

Average visibility in September - Coffee Creek, 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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Coffee Creek, Montana, USA

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