September weather forecast
Browning, MT

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Weather in September

The first month of the autumn, September, is still a refreshing month in Browning, Montana, with an average temperature fluctuating between 67.6°F (19.8°C) and 48.4°F (9.1°C).

Temperature

The shift from August to September involves a decrease in the average high-temperature, from a moderately hot 78.1°F (25.6°C) to an enjoyable 67.6°F (19.8°C). Browning, in September, witnesses an average low-temperature of 48.4°F (9.1°C).

Humidity

The average relative humidity in September in Browning is 49%.

Rainfall

In Browning, Montana, during September, the rain falls for 6.2 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, in Browning, there are 70.4 rainfall days, and 8.46" (215mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Browning, Montana. September is the first month it typically snows in Browning. Throughout September, in the average 0.8 snowfall days, it receives 0.51" (13mm) of snow. In Browning, during the entire year, snow falls for 54.3 days and aggregates up to 19.49" (495mm) of snow.

Daylight

The average length of the day in September in Browning is 12h and 34min.
On the first day of September, sunrise is at 6:50 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:12 pm MDT.

Sunshine

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

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 4 during September leads to these advisories:
Undertake protective steps - Preventing sun damage is advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

What are the temperatures in Browning in September?

An average high-temperature, in September, in Browning, is 67.6°F (19.8°C) and the average low-temperature is 48.4°F (9.1°C).

What is the average humidity in September in Browning?

The average relative humidity in September in Browning is 49%.

How many days does it rain in September in Browning?

In Browning, Montana, in September, during 6.2 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

When does it start snowing in Browning?

September is the first month it typically snows in Browning. Throughout September, in the average 0.8 snowfall days, it receives 0.51" (13mm) of snow.

How many hours of daylight does Browning have in September?

The average day length in September is 12h and 34min.

What time are sunrise and sunset in September in Browning?

On the first day of September, sunrise is at 6:50 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:12 pm MDT.

How long on average sun shines in September in Browning?

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

How high is the UV index in September in Browning?

In September, the average daily maximum UV index in Browning is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Browning, MT

Average temperature in September - Browning, MT
  • Average high temperature in September: 67.6°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (27.1°F).

  • Average low temperature in September: 48.4°F

The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (15.3°F).

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Average pressure in September
Browning, MT

Average pressure in September - Browning, MT
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Browning, MT

Average wind speed in September - Browning, MT
  • Average wind speed in September: 9.5mph

The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.8mph).

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Average humidity in September
Browning, MT

Average humidity in September - Browning, MT
  • Average humidity in September: 49%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in September
Browning, MT

Average rainfall in September - Browning, MT
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is July (0.31").

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Average rainfall days in September
Browning, MT

Average rainfall days in September - Browning, MT
  • Average rainfall days in September: 6.2 days

The month with the highest number of rainy days is May (10.4 days).
The month with the least rainy days is November (2.6 days).

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Average snowfall in September
Browning, MT

Average snowfall in September - Browning, MT
  • Average snowfall in September: 0.51"

The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Browning, MT

Average snowfall days in September - Browning, MT
  • Average snowfall days in September: 0.8 days

The month with the highest number of snowfall days is December (10.2 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
Browning, MT

Average daylight in September / Average sunshine in September - Browning, 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 24min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Browning, MT

Average sunshine days in September - Browning, MT
  • Average sunshine days in September: 22.4 days

The month with the most sunshine days is July (23.5 days).
The month with the least sunshine days is April (17.4 days).

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Average UV index in September
Browning, MT

Average UV index in September - Browning, 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, October, November and December (UV index 2).

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Average cloud cover in September
Browning, MT

Average cloud cover in September - Browning, MT
  • Average cloud cover in September: 23

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in September
Browning, MT

Average visibility in September - Browning, 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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Browning, Montana, USA

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