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
Shelly's September weather comes with a decrease in average high-temperatures, moving from a warm 81.1°F (27.3°C) in August to an agreeable 71.1°F (21.7°C). Shelly observes an average low-temperature of 52.3°F (11.3°C) during September.Humidity
The average relative humidity in September is 62%.Rainfall
In Shelly, in September, it is raining for 8.5 days, with typically 1.73" (44mm) of accumulated precipitation. In Shelly, during the entire year, the rain falls for 103 days and collects up to 18.35" (466mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 33min.On the first day of September, sunrise is at 6:47 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:08 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
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?
How many hours of daylight does Shelly have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Shelly have in September?
What is the UV index intensity in September?
Average temperature in September
Shelly, MN
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is January (15.6°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (1.6°F).
Average pressure in September
Shelly, MN
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Shelly, MN
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is October (10.7mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in September
Shelly, MN
- Average humidity in September: 62%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Shelly, MN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is June (3.46").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in September
Shelly, MN
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.2 days).
Average snowfall in September
Shelly, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Shelly, MN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (14.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Shelly, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 4min
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 6min).
Average sunshine days in September
Shelly, MN
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is September (20.1 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in September
Shelly, 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, November and December (UV index 1).
Average cloud cover in September
Shelly, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Shelly, 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).
Shelly, Minnesota, USA
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