September weather forecastDeephaven, MN
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Deephaven, Minnesota, with an average temperature fluctuating between 71.4°F (21.9°C) and 53.6°F (12°C).Temperature
In September, the average high-temperature marginally drops from a warm 78.4°F (25.8°C) in August to a pleasant 71.4°F (21.9°C). Deephaven sees an average low-temperature of 53.6°F (12°C) during September.Humidity
The average relative humidity in September is 74%.Rainfall
In Deephaven, during September, the rain falls for 9.9 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 103.9 rainfall days, and 12.4" (315mm) of precipitation is accumulated.Snowfall
In Deephaven, snow does not fall in June through September.Daylight
In Deephaven, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:50 pm. On the last day of September, in Deephaven, Minnesota, sunrise is at 7:11 am and sunset at 6:55 pm CDT.
Sunshine
In September, the average sunshine in Deephaven is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Deephaven, MN
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Deephaven, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Deephaven, MN
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Deephaven, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April, May and October (71%).
Average rainfall in September
Deephaven, MN
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Deephaven, MN
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Deephaven, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Deephaven, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Deephaven, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Deephaven, MN
- Average sunshine days in September: 17.4 days
The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Deephaven, 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
Deephaven, MN
- Average cloud cover in September: 34
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 31).
Average visibility in September
Deephaven, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
