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 average high-temperature decreases in September, shifting from a moderately hot 77.9°F (25.5°C) in August to an agreeable 68.9°F (20.5°C). During September, Bertha records an average temperature of 49.8°F (9.9°C) at night.Humidity
In Bertha, the average relative humidity in September is 73%.Rainfall
In September, in Bertha, the rain falls for 8.5 days. Throughout September, 0.98" (25mm) of precipitation is accumulated. Throughout the year, in Bertha, there are 95.6 rainfall days, and 13.9" (353mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Bertha is 12h and 32min.On the first day of September, sunrise is at 6:41 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:01 pm CDT.
Sunshine
In Bertha, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index in Bertha is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the usual temperature for Bertha in September?
What is the average humidity in September in Bertha?
How much does it rain in Bertha in September?
When it does not snow in Bertha?
Does it snow in Bertha in September?
What is the average length of the day in September in Bertha?
When are sunrise and sunset in September in Bertha?
How many hours of sunshine does Bertha have in September?
How high is the UV index in September in Bertha?
Average temperature in September
Bertha, MN
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (16.9°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (3.7°F).
Average pressure in September
Bertha, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Bertha, MN
- Average wind speed in September: 8.2mph
The windiest months (with the highest average wind speed) are April and October (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Bertha, MN
- Average humidity in September: 73%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Bertha, MN
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is June (2.48").
The driest month (with the least rainfall) is February (0.31").
Average rainfall days in September
Bertha, MN
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1 days).
Average snowfall in September
Bertha, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bertha, MN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bertha, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Bertha, MN
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Bertha, 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 January, February, November and December (UV index 1).
Average cloud cover in September
Bertha, MN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Bertha, 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 and February (4mi).
Bertha, Minnesota, USA
Weather forecast for your location
2. Allow the app to use your location
