September weather forecast
Goldcreek, MT

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Weather in September

The first month of the autumn, September, is still a refreshing month in Goldcreek, Montana, with an average temperature varying between 65.7°F (18.7°C) and 41.2°F (5.1°C).

Temperature

Goldcreek's September weather shows a moderate shift in high-temperatures, falling from August's warm 75.2°F (24°C) to a refreshing 65.7°F (18.7°C). Goldcreek's nights in September are distinguished by a pronounced temperature shift from the day, with an average low of 41.2°F (5.1°C).

Humidity

In Goldcreek, the average relative humidity in September is 55%.

Rainfall

In September, the rain falls for 7.5 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In Goldcreek, during the entire year, the rain falls for 122.8 days and collects up to 17.13" (435mm) of precipitation.

Snowfall

Months with snowfall in Goldcreek are January through June, September through December. September is the first month it typically snows in Goldcreek. Throughout September, in the average 1.3 snowfall days, it receives 2.24" (57mm) of snow. In Goldcreek, during the entire year, snow falls for 125.4 days and aggregates up to 77.91" (1979mm) of snow.

Daylight

The average length of the day in September in Goldcreek is 12h and 32min.
On the first day of the month, sunrise is at 6:52 am and sunset at 8:10 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:12 pm MDT.

Sunshine

In September, the average sunshine in Goldcreek is 9.6h.

UV index

In September, the average daily maximum UV index in Goldcreek, Montana, is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 3 during September translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What is the average September temperature in Goldcreek?

The high-temperature, in September, in Goldcreek, is 65.7°F (18.7°C), while the low-temperature averages to 41.2°F (5.1°C).

What is the average humidity in September in Goldcreek?

In Goldcreek, Montana, the average relative humidity in September is 55%.

How much does it rain in Goldcreek in September?

In Goldcreek, in September, it is raining for 7.5 days, with typically 0.87" (22mm) of accumulated precipitation.

When does it start snowing in Goldcreek?

September is the first month it typically snows in Goldcreek, Montana. Throughout September, in the average 1.3 snowfall days, it receives 2.24" (57mm) of snow.

How many hours of daylight does Goldcreek have in September?

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

When are sunrise and sunset in September in Goldcreek?

On the first day of September, sunrise is at 6:52 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:12 pm MDT.

How many hours of sunshine does Goldcreek have in September?

In September, the average sunshine duration in Goldcreek, Montana, is 9.6h.

What is the UV index intensity in September in Goldcreek?

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Goldcreek, MT

Average temperature in September - Goldcreek, MT
  • Average high temperature in September: 65.7°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in September: 41.2°F

The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).

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Average pressure in September
Goldcreek, MT

Average pressure in September - Goldcreek, MT
  • Average pressure in September: 29.98"Hg

The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Goldcreek, MT

Average wind speed in September - Goldcreek, MT
  • Average wind speed in September: 5.4mph

The windiest months (with the highest average wind speed) are January, April and November (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Goldcreek, MT

Average humidity in September - Goldcreek, MT
  • Average humidity in September: 55%

The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are July and August (49%).

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Average rainfall in September
Goldcreek, MT

Average rainfall in September - Goldcreek, MT
  • Average rainfall in September: 0.87"

The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is August (0.67").

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Average rainfall days in September
Goldcreek, MT

Average rainfall days in September - Goldcreek, MT
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is August (7.3 days).

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Average snowfall in September
Goldcreek, MT

Average snowfall in September - Goldcreek, MT
  • Average snowfall in September: 2.24"

The month with the highest snowfall is February (12.76").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Goldcreek, MT

Average snowfall days in September - Goldcreek, MT
  • Average snowfall days in September: 1.3 days

The month with the highest number of snowfall days is February (20.3 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
Goldcreek, MT

Average daylight in September / Average sunshine in September - Goldcreek, 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 42min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in September
Goldcreek, MT

Average sunshine days in September - Goldcreek, MT
  • Average sunshine days in September: 19.9 days

The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is April (6.3 days).

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Average UV index in September
Goldcreek, MT

Average UV index in September - Goldcreek, MT
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 5).
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
Goldcreek, MT

Average cloud cover in September - Goldcreek, MT
  • Average cloud cover in September: 22

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in September
Goldcreek, MT

Average visibility in September - Goldcreek, MT
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).

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Goldcreek, Montana, USA

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