September weather forecast
Wyola, MT

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Weather in September

September, the first month of the autumn in Wyola, is still a warm month, with an average temperature ranging between min 54°F (12.2°C) and max 74.3°F (23.5°C).

Temperature

September's arrival correlates with a reduction in the average high-temperature, down from 84°F (28.9°C) in August to a still warm 74.3°F (23.5°C). During September, the average low-temperature is a fresh 54°F (12.2°C).

Humidity

In September, the average relative humidity is 42%.

Rainfall

In Wyola, during September, the rain falls for 2.6 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, in Wyola, there are 46.3 rainfall days, and 2.83" (72mm) of precipitation is accumulated.

Snowfall

In Wyola, snow does not fall in June through September.

Daylight

The average length of the day in September in Wyola is 12h and 31min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:46 pm. On the last day of September, in Wyola, sunrise is at 7:07 am and sunset at 6:51 pm MDT.

Sunshine

The average sunshine in September in Wyola is 10.7h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Wyola?

In September, in Wyola, the average high-temperature is 74.3°F (23.5°C), and the average low-temperature is 54°F (12.2°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 86°F (30°C).

What is the average humidity in September in Wyola?

The average relative humidity in September in Wyola is 42%.

How much does it rain in Wyola in September?

In Wyola, Montana, in September, during 2.6 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

When it does not snow in Wyola?

In Wyola, snow does not fall in June through September.

Does it snow in Wyola in September?

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

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

The average day length in September is 12h and 31min.

When are sunrise and sunset in September in Wyola?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:46 pm. On the last day of the month, in Wyola, Montana, sunrise is at 7:07 am and sunset at 6:51 pm MDT.

How long on average sun shines in September in Wyola?

In September, the average sunshine duration in Wyola is 10.7h.

What is the UV index intensity in September in Wyola?

The average daily maximum UV index in September in Wyola, Montana, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Wyola, MT

Average temperature in September - Wyola, MT
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (31.3°F).

  • Average low temperature in September: 54°F

The months with the highest average low temperature are July and August (61.3°F).
The coldest month (with the lowest average low temperature) is February (17.8°F).

Average pressure in September
Wyola, MT

Average pressure in September - Wyola, MT
  • Average pressure in September: 29.94"Hg

The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Wyola, MT

Average wind speed in September - Wyola, MT
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

Average humidity in September
Wyola, MT

Average humidity in September - Wyola, MT
  • Average humidity in September: 42%

The months with the highest relative humidity are January and February (76%).
The month with the lowest relative humidity is August (38%).

Average rainfall in September
Wyola, MT

Average rainfall in September - Wyola, MT
  • Average rainfall in September: 0.24"

The wettest month (with the highest rainfall) is May (0.47").
The driest months (with the least rainfall) are January and December (0.12").

Average rainfall days in September
Wyola, MT

Average rainfall days in September - Wyola, MT
  • Average rainfall days in September: 2.6 days

The month with the highest number of rainy days is May (6.1 days).
The month with the least rainy days is December (2.2 days).

Average snowfall in September
Wyola, MT

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

The month with the highest snowfall is February (1.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Wyola, MT

Average snowfall days in September - Wyola, MT
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (5.6 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Wyola, MT
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 10h and 4min

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

Average sunshine days in September
Wyola, MT

Average sunshine days in September - Wyola, MT
  • Average sunshine days in September: 26.8 days

The month with the most sunshine days is September (26.8 days).
The month with the least sunshine days is February (21.6 days).

Average UV index in September
Wyola, MT

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Wyola, MT

Average cloud cover in September - Wyola, MT
  • Average cloud cover in September: 18

The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 14).

Average visibility in September
Wyola, MT

Average visibility in September - Wyola, 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).

Wyola, Montana, USA

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