September weather forecast
Dodson, MT

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Weather in September

The first month of the autumn, September, is still a pleasant month in Dodson, Montana, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 53.4°F (11.9°C).

Temperature

Start of September brings a shift in the average high-temperature, falling from August's warm 82.2°F (27.9°C) to an agreeable 71.1°F (21.7°C). Dodson records an average low-temperature of 53.4°F (11.9°C) throughout the month of September.

Humidity

In Dodson, the average relative humidity in September is 46%.

Rainfall

In September, the rain falls for 8.7 days. Throughout September, 1.14" (29mm) of precipitation is accumulated. In Dodson, during the entire year, the rain falls for 103.3 days and collects up to 11.85" (301mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows in Dodson. Throughout September, in the average 0.2 snowfall days, it receives 0.2" (5mm) of snow. In Dodson, during the entire year, snow falls for 59.6 days and aggregates up to 20.28" (515mm) of snow.

Daylight

In Dodson, the average length of the day in September is 12h and 34min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:53 pm MDT.

Sunshine

The average sunshine in September in Dodson is 9.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. When the Sun is at its strongest around midday, find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Dodson?

September temperatures vary between a high-temperature of 71.1°F (21.7°C) and a low-temperature of 53.4°F (11.9°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 82.4°F (28°C).

What is the average humidity in September in Dodson?

In Dodson, the average relative humidity in September is 46%.

How much does it rain in Dodson in September?

In September, in Dodson, the rain falls for 8.7 days. Throughout September, 1.14" (29mm) of precipitation is accumulated.

When does it start to snow in Dodson?

September is the first month it typically snows in Dodson. Throughout September, in the average 0.2 snowfall days, it receives 0.2" (5mm) of snow.

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

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

What time are sunrise and sunset in September in Dodson?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:53 pm MDT.

How long on average sun shines in September in Dodson?

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

What is the UV index reading in September in Dodson?

The average daily maximum UV index in September in Dodson, Montana, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Dodson, MT

Average temperature in September - Dodson, MT
  • Average high temperature in September: 71.1°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The months with the lowest average high temperature are January and February (25.7°F).

  • Average low temperature in September: 53.4°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).

Average pressure in September
Dodson, MT

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

The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in September
Dodson, MT

Average wind speed in September - Dodson, MT
  • Average wind speed in September: 9.9mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).

Average humidity in September
Dodson, MT

Average humidity in September - Dodson, MT
  • Average humidity in September: 46%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (41%).

Average rainfall in September
Dodson, MT

Average rainfall in September - Dodson, MT
  • Average rainfall in September: 1.14"

The wettest months (with the highest rainfall) are May and June (1.89").
The driest months (with the least rainfall) are February and December (0.55").

Average rainfall days in September
Dodson, MT

Average rainfall days in September - Dodson, MT
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (4 days).

Average snowfall in September
Dodson, MT

Average snowfall in September - Dodson, MT
  • Average snowfall in September: 0.2"

The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July and August (0").

Average snowfall days in September
Dodson, MT

Average snowfall days in September - Dodson, MT
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Dodson, MT
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Dodson, MT

Average sunshine days in September - Dodson, MT
  • Average sunshine days in September: 19.8 days

The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (13.4 days).

Average UV index in September
Dodson, MT

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

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Dodson, MT

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

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).

Average visibility in September
Dodson, MT

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

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

Dodson, Montana, USA

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