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 arrival of September suggests a slight decrease in the average high-temperature, moving from a warm 80.6°F (27°C) in August to a pleasant 73°F (22.8°C). During September, Marietta sees a mean low-temperature of 52.7°F (11.5°C).Humidity
In September, the average relative humidity is 68%.Rainfall
In September, the rain falls for 8.5 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. In Marietta, Minnesota, during the entire year, the rain falls for 99.9 days and collects up to 19.65" (499mm) of precipitation.Snowfall
In Marietta, snow does not fall in June through September.Daylight
In Marietta, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:48 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:07 pm CDT.
Sunshine
The average sunshine in September in Marietta is 9h.UV index
In Marietta, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the temperature in September in Marietta?
What is the average humidity in September in Marietta?
How much does it rain in Marietta in September?
When it does not snow in Marietta?
Does it snow in Marietta in September?
What is the average length of the day in September in Marietta?
What time are sunrise and sunset in September in Marietta?
How many hours of sunshine does Marietta have in September?
What is the UV index reading in September in Marietta?
Average temperature in September
Marietta, MN
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (20.3°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 (6.3°F).
Average pressure in September
Marietta, MN
- Average pressure in September: 29.98"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Marietta, MN
- Average wind speed in September: 8.9mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in September
Marietta, MN
- Average humidity in September: 68%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Marietta, MN
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Marietta, MN
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Marietta, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Marietta, MN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marietta, MN
- Average daylight in September: 12h and 3min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Marietta, MN
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in September
Marietta, 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 and November (UV index 1).
Average cloud cover in September
Marietta, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Marietta, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Marietta, Minnesota, USA
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