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
September's arrival signals a moderate reduction in the average high-temperature, easing from a warm 80.8°F (27.1°C) in August to an agreeable 73°F (22.8°C). An average low-temperature of 52.7°F (11.5°C) is common during the nights of September.Humidity
In September, the average relative humidity in Ortonville is 67%.Rainfall
In September, in Ortonville, the rain falls for 9.4 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. In Ortonville, during the entire year, the rain falls for 106.9 days and collects up to 19.84" (504mm) of precipitation.Snowfall
In Ortonville, snow does not fall in June through September.Daylight
In Ortonville, Minnesota, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:07 pm CDT.
Sunshine
In Ortonville, the average sunshine in September is 9h.UV index
In Ortonville, Minnesota, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Ortonville in September?
What is the average humidity in September in Ortonville?
How much does it rain in Ortonville in September?
When it does not snow in Ortonville?
Does it snow in Ortonville in September?
How many hours of daylight does Ortonville have in September?
When are sunrise and sunset in September in Ortonville?
How long on average sun shines in September in Ortonville?
What is the UV index intensity in September in Ortonville?
Average temperature in September
Ortonville, MN
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in September
Ortonville, 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
Ortonville, MN
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in September
Ortonville, MN
- Average humidity in September: 67%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Ortonville, MN
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in September
Ortonville, MN
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in September
Ortonville, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Ortonville, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ortonville, 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 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Ortonville, MN
- Average sunshine days in September: 18.2 days
The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Ortonville, 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
Ortonville, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Ortonville, 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).
Ortonville, Minnesota, USA
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