September weather forecastCut Bank, MT

September

Weather in September

September in Cut Bank witnesses the commencement of the fall season. A significant drop can be witnessed in temperature, going down to an average high of 67.6°F (19.8°C). However, the decrease in temperature welcomes an increase in rainfall measuring up to 0.71 Inches. This increase contributes to revitalizing the surroundings, making the city appear more vibrant. Despite dwindling daylight hours, September remains a pleasant transitionary month.

Temperature

September's onset corresponds with a shift in the average high-temperature, moving from a moderately hot 78.1°F (25.6°C) in August to a comfortable 67.6°F (19.8°C). An average low-temperature of 48.4°F (9.1°C) is observed in Cut Bank during the September nights.

Humidity

The average relative humidity in September in Cut Bank, Montana, is 49%.

Rainfall

In Cut Bank, during September, the rain falls for 6.2 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Cut Bank, during the entire year, the rain falls for 70.4 days and collects up to 8.46" (215mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 34min.
On the first day of September in Cut Bank, Montana, sunrise is at 6:47 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:09 pm MDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 4 during September leads to these advisories:
Make use of precautions - Suggestions to resist sunburn are communicated. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Cut Bank during September are 67.6°F (19.8°C) and 48.4°F (9.1°C) respectively.

In Cut Bank, the average relative humidity in September is 49%.

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

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

The average day length in September in Cut Bank, Montana, is 12h and 34min.

In September, on the first day of the month, sunrise is at 6:47 am and sunset at 8:10 pm. On the last day of the month, in Cut Bank, Montana, sunrise is at 7:28 am and sunset at 7:09 pm MDT.

The average sunshine duration in September in Cut Bank is 9.6h.

In Cut Bank, Montana, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cut Bank, 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).

Average pressure in September
Cut Bank, 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).

Average wind speed in September
Cut Bank, 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).

Average humidity in September
Cut Bank, 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%).

Average rainfall in September
Cut Bank, 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").

Average rainfall days in September
Cut Bank, 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).

Average snowfall in September
Cut Bank, 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").

Average snowfall days in September
Cut Bank, 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).

Average daylight in September /
Average sunshine in September
Cut Bank, MT

  • Average daylight in September: 12h and 36min

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 36min

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).

Average sunshine days in September
Cut Bank, 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).

Average UV index in September
Cut Bank, 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).

Average cloud cover in September
Cut Bank, 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).

Average visibility in September
Cut Bank, 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).