September weather forecastMoorhead, MN
September
Weather in September
September marks the onset of autumn in Moorhead, characterized by a decline in temperatures and daylight hours. The weather is significantly cooler than August signaling a transition from summer to autumn. The frequency of rain might be lower, but it does not completely disappear. Trees begin to turn to the reds, oranges, and yellows typical of the fall foliage season. The main shift to remark is that while rainfall decreases this month, weather patterns indicate that snowfall is on the horizon.Temperature
The onset of September introduces a moderate change in Moorhead's weather, with average high-temperatures falling from August's warm 81°F (27.2°C) to a pleasant 71.8°F (22.1°C). In September, Moorhead experiences a temperature dip to an average of 52.7°F (11.5°C) at night.Humidity
With an average relative humidity of 63%, September is the least humid month in Moorhead.Rainfall
In Moorhead, during September, the rain falls for 8.9 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Moorhead, during the entire year, the rain falls for 102.5 days and collects up to 17.17" (436mm) of precipitation.Snowfall
In Moorhead, Minnesota, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of September in Moorhead, sunrise is at 6:47 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:08 pm CDT.
Sunshine
In September, the average sunshine in Moorhead is 8.9h.UV index
In Moorhead, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Moorhead, MN
- Average high temperature in September: 71.8°F
The warmest months (with the highest average high temperature) are July and August (81°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (2.7°F).
Average pressure in September
Moorhead, MN
- Average pressure in September: 29.97"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
Moorhead, MN
- Average wind speed in September: 9.6mph
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
Moorhead, MN
- Average humidity in September: 63%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (63%).
Average rainfall in September
Moorhead, MN
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Moorhead, MN
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1.7 days).
Average snowfall in September
Moorhead, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Moorhead, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Moorhead, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Moorhead, MN
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is September (19.7 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
Moorhead, 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 December (UV index 1).
Average cloud cover in September
Moorhead, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Moorhead, 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).
