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
September's arrival corresponds with a decrease in average high-temperatures, from August's moderately hot 74.8°F (23.8°C) to a refreshing 65.8°F (18.8°C). Redby's average low-temperature in September is measured at a chilly 48.7°F (9.3°C).Humidity
In Redby, the average relative humidity in September is 74%.Rainfall
In September, the rain falls for 12 days. Throughout September, 1.69" (43mm) of precipitation is accumulated. In Redby, during the entire year, the rain falls for 109 days and collects up to 20.12" (511mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 97.9 snowfall days, and 36.85" (936mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 6:38 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:00 pm CDT.
Sunshine
In Redby, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To guard against the harmful effects of the Sun, minimize exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Redby have in September?
What is the UV index reading in September in Redby?
Average temperature in September
Redby, MN
- Average high temperature in September: 65.8°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in September: 48.7°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (2.1°F).
Average pressure in September
Redby, MN
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Redby, MN
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is October (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Redby, MN
- Average humidity in September: 74%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Redby, MN
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Redby, MN
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is January (1.3 days).
Average snowfall in September
Redby, MN
- Average snowfall in September: 0.04"
The month with the highest snowfall is December (7.24").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Redby, MN
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (18.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Redby, MN
- 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 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in September
Redby, MN
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in September
Redby, MN
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Redby, MN
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Redby, MN
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Redby, Minnesota, USA
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