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
As Thompson enters September, the average high-temperature decreases from the a warm 80.6°F (27°C) of August to a pleasant 70.7°F (21.5°C). Throughout September nights, Thompson registers an average low-temperature of 51.6°F (10.9°C).Humidity
In Thompson, the average relative humidity in September is 62%.Rainfall
In Thompson, during September, the rain falls for 7.7 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Thompson, during the entire year, the rain falls for 80.3 days and collects up to 10.47" (266mm) of precipitation.Snowfall
In Thompson, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 33min.On the first day of the month, sunrise is at 6:47 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:27 am and sunset at 7:09 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Thompson, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in Thompson in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Thompson have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Thompson, ND
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is January (15.3°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (0.9°F).
Average pressure in September
Thompson, ND
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Thompson, ND
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is October (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).
Average humidity in September
Thompson, ND
- Average humidity in September: 62%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Thompson, ND
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Thompson, ND
- Average rainfall days in September: 7.7 days
The month with the highest number of rainy days is June (14.1 days).
The month with the least rainy days is January (0.8 days).
Average snowfall in September
Thompson, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Thompson, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Thompson, ND
- Average daylight in September: 12h and 4min
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: 2h and 54min).
Average sunshine days in September
Thompson, ND
- Average sunshine days in September: 21.4 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is June (13.7 days).
Average UV index in September
Thompson, ND
- Average UV index in September: 4
The month with the highest UV index is 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
Thompson, ND
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Thompson, ND
- 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).
Thompson, North Dakota, USA
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