Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The shift to September brings a decrease in the average high-temperature, falling from a moderately hot 79.9°F (26.6°C) in August to a pleasant 70.7°F (21.5°C). During September, the nighttime temperature averages to a cool 51.6°F (10.9°C).Humidity
May, August and September, with an average relative humidity of 66%, are the least humid months.Rainfall
In Barnesville, in September, it is raining for 9.3 days, with typically 1.3" (33mm) of accumulated precipitation. In Barnesville, during the entire year, the rain falls for 106.2 days and collects up to 17.76" (451mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:06 pm CDT.
Sunshine
In Barnesville, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the least humid month in Barnesville?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September in Barnesville?
What is the UV index reading in September?
Average temperature in September
Barnesville, MN
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (2.7°F).
Average pressure in September
Barnesville, MN
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Barnesville, MN
- Average wind speed in September: 9.6mph
The windiest months (with the highest average wind speed) are April and October (10.5mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in September
Barnesville, MN
- Average humidity in September: 66%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are May, August and September (66%).
Average rainfall in September
Barnesville, MN
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is June (3.03").
The driest months (with the least rainfall) are January, February and November (0.59").
Average rainfall days in September
Barnesville, MN
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Barnesville, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Barnesville, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Barnesville, MN
- 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Barnesville, MN
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is September (18.9 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in September
Barnesville, MN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Barnesville, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in September
Barnesville, MN
- 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).
Barnesville, Minnesota, USA
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