September weather forecast
Hungry Horse, MT

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Weather in September

September, the first month of the autumn in Hungry Horse, is still a refreshing month, with an average temperature varying between 39.2°F (4°C) and 65.5°F (18.6°C).

Temperature

September shows a mild decline in the average high-temperature, falling from August's warm 76.8°F (24.9°C) to an enjoyable 65.5°F (18.6°C). Throughout September nights, a significant departure from daytime temperatures, with an average low of 39.2°F (4°C), is recognized.

Humidity

In September, the average relative humidity is 64%.

Rainfall

In September, in Hungry Horse, Montana, the rain falls for 8.5 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. In Hungry Horse, during the entire year, the rain falls for 126.4 days and collects up to 11.22" (285mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Hungry Horse, there are 97 snowfall days, and 33.86" (860mm) of snow is accumulated.

Daylight

The average length of the day in September in Hungry Horse is 12h and 34min.
On the first day of the month, sunrise is at 6:54 am and sunset at 8:17 pm. On the last day of September, in Hungry Horse, sunrise is at 7:35 am and sunset at 7:16 pm MDT.

Sunshine

The average sunshine in September in Hungry Horse is 9.4h.

UV index

In Hungry Horse, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 3 during September translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the usual temperature for Hungry Horse in September?

In September, in Hungry Horse, the average high-temperature is 65.5°F (18.6°C), and the average low-temperature is 39.2°F (4°C).

What is the average humidity in September in Hungry Horse?

The average relative humidity in September in Hungry Horse is 64%.

How much does it rain in Hungry Horse in September?

In Hungry Horse, in September, during 8.5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

When does it start snowing in Hungry Horse?

September is the first month it typically snows in Hungry Horse, Montana. Throughout September, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Hungry Horse?

In Hungry Horse, Montana, the average day length in September is 12h and 34min.

When is the sunrise / sunset in September in Hungry Horse?

On the first day of September, sunrise is at 6:54 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:16 pm MDT.

How long on average sun shines in September in Hungry Horse?

In September, the average sunshine duration is 9.4h.

What is the UV index intensity in September in Hungry Horse?

The average daily maximum UV index in September in Hungry Horse, Montana, is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Hungry Horse, MT

Average temperature in September - Hungry Horse, MT
  • Average high temperature in September: 65.5°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in September: 39.2°F

The month with the highest average low temperature is August (45.5°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

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Average pressure in September
Hungry Horse, MT

Average pressure in September - Hungry Horse, 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 (29.91"Hg).

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Average wind speed in September
Hungry Horse, MT

Average wind speed in September - Hungry Horse, MT
  • Average wind speed in September: 3.8mph

The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are August and December (3.7mph).

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Average humidity in September
Hungry Horse, MT

Average humidity in September - Hungry Horse, MT
  • Average humidity in September: 64%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in September
Hungry Horse, MT

Average rainfall in September - Hungry Horse, MT
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is August (0.43").

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Average rainfall days in September
Hungry Horse, MT

Average rainfall days in September - Hungry Horse, MT
  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is August (6.3 days).

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Average snowfall in September
Hungry Horse, MT

Average snowfall in September - Hungry Horse, MT
  • Average snowfall in September: 0.04"

The month with the highest snowfall is January (7.72").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Hungry Horse, MT

Average snowfall days in September - Hungry Horse, MT
  • Average snowfall days in September: 0.3 days

The month with the highest number of snowfall days is December (19.1 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
Hungry Horse, MT

Average daylight in September / Average sunshine in September - Hungry Horse, MT
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in September
Hungry Horse, MT

Average sunshine days in September - Hungry Horse, MT
  • Average sunshine days in September: 19 days

The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is March (7.7 days).

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Average UV index in September
Hungry Horse, MT

Average UV index in September - Hungry Horse, 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).

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Average cloud cover in September
Hungry Horse, MT

Average cloud cover in September - Hungry Horse, MT
  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in September
Hungry Horse, MT

Average visibility in September - Hungry Horse, MT
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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Hungry Horse, Montana, USA

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