September weather forecast and climate
Fairview, MT

Weather in September

The first month of the autumn, September, is also an agreeable month in Fairview, Montana, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 54.3°F (12.4°C).

Temperature

In September, the average high-temperature decreases, from a moderately hot 82.8°F (28.2°C) in August, to a pleasant 72.3°F (22.4°C). The average low-temperature, in September, is 54.3°F (12.4°C).

Humidity

The average relative humidity in Fairview is 48%.

Rainfall

In Fairview, Montana, in September, during 7.5 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 85.7 rainfall days, and 8.5" (216mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day in Fairview is 12.5h.

Sunshine

The average sunshine in Fairview is 10h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Fairview?

In Fairview, Montana, in September, the average high-temperature is 72.3°F (22.4°C), and the average low-temperature is 54.3°F (12.4°C).

What is the average humidity in September in Fairview?

In September, the average relative humidity is 48%.

How much does it rain in Fairview in September?

In Fairview, Montana, in September, it is raining for 7.5 days, with typically 1.06" (27mm) of accumulated precipitation.

Does it snow in Fairview in September?

In Fairview, Montana, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Fairview?

In Fairview, Montana, snow does not fall in June through September.

What is the average length of the day in September in Fairview?

The average length of the day in September is 12.5h.

How many hours of sunshine does Fairview have in September?

In September, the average sunshine is 10h.

What is the UV index reading in September in Fairview?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in September
Fairview, MT

Average temperature in September - Fairview, MT
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in September: 54.3°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in September
Fairview, MT

Average pressure in September - Fairview, MT
  • Average pressure in September: 29.93"

The month with the highest atmospheric pressure is February (30.16").
The month with the lowest atmospheric pressure is June (29.83").

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Average wind speed in September
Fairview, MT

Average wind speed in September - Fairview, MT
  • Average wind speed in September: 10.3mph

The windiest months (with the highest average wind speed) are April and October (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).

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Average humidity in September
Fairview, MT

Average humidity in September - Fairview, MT
  • Average humidity in September: 48%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (45%).

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Average rainfall in September
Fairview, MT

Average rainfall in September - Fairview, MT
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.24").

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Average rainfall days in September
Fairview, MT

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

The month with the highest number of rainy days is June (11.4 days).
Months with the least rainy days are January and February (3.2 days).

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Average snowfall in September
Fairview, MT

Average snowfall in September - Fairview, MT
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.77").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Fairview, MT

Average snowfall days in September - Fairview, MT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (12 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Fairview, MT

Average daylight in September / Average sunshine in September - Fairview, MT
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.5h).

  • Average sunshine in September: 10h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 4.3h).

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Average sunshine days in September
Fairview, MT

Average sunshine days in September - Fairview, MT
  • Average sunshine days in September: 20.7 days

The month with the most sunshine days is September (20.7 days).
The month with the least sunshine days is April (15.8 days).

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Average UV index in September
Fairview, MT

Average UV index in September - Fairview, MT
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January and February (UV index 1).

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Average cloud cover in September
Fairview, MT

Average cloud cover in September - Fairview, MT
  • Average cloud cover in September: 24

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 18).

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Average visibility in September
Fairview, MT

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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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