September weather forecast
Peterson, MN

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Weather in September

The first month of the autumn, September, is also an agreeable month in Peterson, Minnesota, with an average temperature varying between 51.4°F (10.8°C) and 70.7°F (21.5°C).

Temperature

During the shift to September, Peterson records a mild decrease in average high-temperature, moving from a warm 77°F (25°C) in August to an agreeable 70.7°F (21.5°C). In the month of September, Peterson experiences an average low-temperature of 51.4°F (10.8°C).

Humidity

The average relative humidity in September in Peterson is 80%.

Rainfall

In Peterson, Minnesota, during September, the rain falls for 10.6 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, in Peterson, there are 113.7 rainfall days, and 16.38" (416mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September in Peterson is 12h and 29min.
On the first day of September, sunrise is at 6:31 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:49 pm CDT.

Sunshine

In Peterson, the average sunshine in September is 8.7h.

UV index

In Peterson, Minnesota, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 4 during September leads to these advisories:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Peterson in September?

September temperatures in Peterson vary between a high-temperature of 70.7°F (21.5°C) and a low-temperature of 51.4°F (10.8°C).

What is the average humidity in September in Peterson?

In Peterson, Minnesota, the average relative humidity in September is 80%.

How much does it rain in Peterson in September?

In Peterson, during September, the rain falls for 10.6 days and regularly aggregates up to 1.38" (35mm) of precipitation.

When it does not snow in Peterson?

In Peterson, Minnesota, snow does not fall in June through September.

Does it snow in Peterson in September?

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

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

The average day length in September in Peterson is 12h and 29min.

What time are sunrise and sunset in September in Peterson?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:42 pm. On the last day of the month, in Peterson, sunrise is at 7:04 am and sunset at 6:49 pm CDT.

How many hours of sunshine does Peterson have in September?

The average sunshine duration in September is 8.7h.

What is the UV index reading in September in Peterson?

In September, the average daily maximum UV index in Peterson is 4. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Peterson, MN

Average temperature in September - Peterson, MN
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (21.4°F).

  • Average low temperature in September: 51.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).

Average pressure in September
Peterson, MN

Average pressure in September - Peterson, MN
  • Average pressure in September: 30.01"Hg

The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in September
Peterson, MN

Average wind speed in September - Peterson, MN
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in September
Peterson, MN

Average humidity in September - Peterson, MN
  • Average humidity in September: 80%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).

Average rainfall in September
Peterson, MN

Average rainfall in September - Peterson, MN
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in September
Peterson, MN

Average rainfall days in September - Peterson, MN
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is February (2.4 days).

Average snowfall in September
Peterson, MN

Average snowfall in September - Peterson, MN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Peterson, MN

Average snowfall days in September - Peterson, MN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Peterson, MN

Average daylight in September / Average sunshine in September - Peterson, MN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in September
Peterson, MN

Average sunshine days in September - Peterson, MN
  • Average sunshine days in September: 17.1 days

The months with the most sunshine days are October, November and December (18.5 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in September
Peterson, MN

Average UV index in September - Peterson, MN
  • 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 February, November and December (UV index 1).

Average cloud cover in September
Peterson, MN

Average cloud cover in September - Peterson, MN
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Peterson, MN

Average visibility in September - Peterson, MN
  • Average visibility in September: 5mi

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

Peterson, Minnesota, USA

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