September weather forecast
Outlook, MT

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Weather in September

The first month of the autumn, September, is still a pleasant month in Outlook, Montana, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 52.3°F (11.3°C).

Temperature

During Outlook's transition into September, the average high-temperature lessens, moving from a moderately hot 81.3°F (27.4°C) in August to an agreeable 70°F (21.1°C). In September, Outlook experiences a temperature dip to an average of 52.3°F (11.3°C) at night.

Humidity

In Outlook, Montana, the average relative humidity in September is 50%.

Rainfall

In Outlook, in September, it is raining for 8.6 days, with typically 1.5" (38mm) of accumulated precipitation. In Outlook, during the entire year, the rain falls for 93.3 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 34min.
On the first day of September, sunrise is at 6:17 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:39 pm MDT.

Sunshine

The average sunshine in September is 9.9h.

UV index

In September, the average daily maximum UV index in Outlook is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What is the average September temperature in Outlook?

In Outlook, 70°F (21.1°C) is the average high-temperature and 52.3°F (11.3°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 82.4°F (28°C).

What is the average humidity in September in Outlook?

In September, the average relative humidity in Outlook, Montana, is 50%.

How much does it rain in Outlook in September?

In September, in Outlook, Montana, the rain falls for 8.6 days. Throughout September, 1.5" (38mm) of precipitation is accumulated.

When it does not snow in Outlook?

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

Does it snow in Outlook in September?

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

How many hours of daylight does Outlook have in September?

In September, the average day length in Outlook is 12h and 34min.

When are sunrise and sunset in September in Outlook?

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:40 pm. On the last day of the month, in Outlook, Montana, sunrise is at 6:58 am and sunset at 6:39 pm MDT.

How many hours of sunshine does Outlook have in September?

In Outlook, the average sunshine duration in September is 9.9h.

What is the UV index reading in September in Outlook?

In Outlook, Montana, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Outlook, MT

Average temperature in September - Outlook, MT
  • Average high temperature in September: 70°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (19.8°F).

  • Average low temperature in September: 52.3°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (6.3°F).

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Average pressure in September
Outlook, MT

Average pressure in September - Outlook, MT
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in September
Outlook, MT

Average wind speed in September - Outlook, MT
  • Average wind speed in September: 10.2mph

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

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Average humidity in September
Outlook, MT

Average humidity in September - Outlook, MT
  • Average humidity in September: 50%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in September
Outlook, MT

Average rainfall in September - Outlook, MT
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is February (0.47").

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Average rainfall days in September
Outlook, MT

Average rainfall days in September - Outlook, MT
  • Average rainfall days in September: 8.6 days

The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.6 days).

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Average snowfall in September
Outlook, MT

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

The month with the highest snowfall is November (3.74").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Outlook, MT

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

The month with the highest number of snowfall days is February (13.5 days).
The 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
Outlook, MT

Average daylight in September / Average sunshine in September - Outlook, 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 18min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in September
Outlook, MT

Average sunshine days in September - Outlook, MT
  • Average sunshine days in September: 19.6 days

The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are February and June (13.8 days).

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Average UV index in September
Outlook, MT

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in September
Outlook, MT

Average cloud cover in September - Outlook, MT
  • Average cloud cover in September: 26

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in September
Outlook, MT

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

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

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Outlook, Montana, USA

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