September weather forecastDelano, MN
September
Weather in September
September, the first month of the autumn in Delano, is also an agreeable month, with an average temperature varying between 70.7°F (21.5°C) and 52.7°F (11.5°C).Temperature
In September, the average high-temperature marginally decreases from a moderately hot 78.3°F (25.7°C) in August to an agreeable 70.7°F (21.5°C). Delano, during the month of September, experiences an average low-temperature of 52.7°F (11.5°C).Humidity
In Delano, the average relative humidity in September is 74%.Rainfall
In Delano, in September, it is raining for 11.2 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 118.6 rainfall days, and 21.14" (537mm) of precipitation is accumulated.Snowfall
In Delano, snow does not fall in June through September.Daylight
In Delano, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:56 pm CDT.
Sunshine
In Delano, the average sunshine in September is 8.8h.UV index
In Delano, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 4 transforms into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Delano, MN
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in September
Delano, MN
- Average pressure in September: 29.99"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
Delano, MN
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
Delano, 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 and May (71%).
Average rainfall in September
Delano, MN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Delano, MN
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in September
Delano, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Delano, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delano, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Delano, MN
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is December (17.8 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
Delano, 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
Delano, MN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Delano, 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).





