September weather forecast
Hobson, MT

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Weather in September

September, the first month of the autumn in Hobson, is still a comfortable month, with an average temperature fluctuating between 47.1°F (8.4°C) and 67.5°F (19.7°C).

Temperature

The transition into September involves a decrease in the average high-temperature, falling from a moderately hot 78.1°F (25.6°C) in August to a refreshing 67.5°F (19.7°C). Nighttime temperatures consistently average a frosty 47.1°F (8.4°C) during September.

Humidity

In Hobson, the average relative humidity in September is 52%.

Rainfall

In Hobson, during September, the rain falls for 8.7 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 126.2 rainfall days, and 17.83" (453mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1 snowfall days, it receives 1.3" (33mm) of snow. In Hobson, during the entire year, snow falls for 83.4 days and aggregates up to 45.51" (1156mm) of snow.

Daylight

The average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 6:40 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:00 pm MDT.

Sunshine

In Hobson, the average sunshine in September is 10h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The high-temperature, in September, in Hobson, records 67.5°F (19.7°C), while the low-temperature is 47.1°F (8.4°C).

What is the average humidity in September?

In Hobson, the average relative humidity in September is 52%.

How many days does it rain in September?

In Hobson, in September, it is raining for 8.7 days, with typically 1.02" (26mm) of accumulated precipitation.

When does it start to snow?

September is the first month it typically snows. Throughout September, in the average 1 snowfall days, it receives 1.3" (33mm) of snow.

How many hours of daylight does Hobson have in September?

The average day length in September is 12h and 32min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:00 pm MDT.

How long on average sun shines in September?

In Hobson, the average sunshine duration in September is 10h.

What is the UV index intensity in September in Hobson?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Hobson, MT

Average temperature in September - Hobson, MT
  • Average high temperature in September: 67.5°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The months with the lowest average high temperature are February and December (29.1°F).

  • Average low temperature in September: 47.1°F

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).

Average pressure in September
Hobson, MT

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

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

Average wind speed in September
Hobson, MT

Average wind speed in September - Hobson, MT
  • Average wind speed in September: 8.5mph

The windiest months (with the highest average wind speed) are January, April and October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

Average humidity in September
Hobson, MT

Average humidity in September - Hobson, MT
  • Average humidity in September: 52%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (47%).

Average rainfall in September
Hobson, MT

Average rainfall in September - Hobson, MT
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in September
Hobson, MT

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

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in September
Hobson, MT

Average snowfall in September - Hobson, MT
  • Average snowfall in September: 1.3"

The month with the highest snowfall is April (9.13").
The months with the least snowfall are July and August (0").

Average snowfall days in September
Hobson, MT

Average snowfall days in September - Hobson, MT
  • Average snowfall days in September: 1 days

The month with the highest number of snowfall days is February (15.2 days).
The months with the least snowfall days are July and August (0 days).

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

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

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

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in September
Hobson, MT

Average sunshine days in September - Hobson, MT
  • Average sunshine days in September: 19.3 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (8.3 days).

Average UV index in September
Hobson, MT

Average UV index in September - Hobson, 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, April, October, November and December (UV index 2).

Average cloud cover in September
Hobson, MT

Average cloud cover in September - Hobson, MT
  • Average cloud cover in September: 23

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 16).

Average visibility in September
Hobson, MT

Average visibility in September - Hobson, 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).

Hobson, Montana, USA

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