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 beginning of September brings a minor change in the average high-temperature, shifting from a warm 79.2°F (26.2°C) in August to a pleasant 72.9°F (22.7°C). Morton records an average nighttime low-temperature of 52.9°F (11.6°C) throughout September.Humidity
In Morton, the average relative humidity in September is 71%.Rainfall
In September, the rain falls for 9.5 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 98 rainfall days, and 14.61" (371mm) of precipitation is accumulated.Snowfall
In Morton, Minnesota, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 6:43 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:01 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Morton, MN
- Average high temperature in September: 72.9°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 (20.3°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).
Average pressure in September
Morton, MN
- Average pressure in September: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Morton, MN
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Morton, MN
- Average humidity in September: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Morton, MN
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Morton, MN
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Morton, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Morton, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Morton, MN
- Average daylight in September: 12h and 3min
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 54min).
- Average sunshine in September: 9h and 0min
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 36min).
Average sunshine days in September
Morton, MN
- Average sunshine days in September: 19 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in September
Morton, 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
Morton, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Morton, 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).
Morton, Minnesota, USA
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