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
Arrival of September comes with a reduction in the average high-temperature, falling from a moderately hot 77.9°F (25.5°C) in August to a refreshing 67.6°F (19.8°C). Rolette encounters an average low-temperature of 49.1°F (9.5°C) during September nights.Humidity
In Rolette, the average relative humidity in September is 62%.Rainfall
In Rolette, in September, it is raining for 11.3 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, in Rolette, there are 110.9 rainfall days, and 17.95" (456mm) of precipitation is accumulated.Snowfall
In Rolette, snow does not fall in June through September.Daylight
The average length of the day in September in Rolette is 12h and 34min.On the first day of September in Rolette, sunrise is at 6:57 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:19 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Rolette is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 4 transforms into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What are September temperatures in Rolette?
What is the average humidity in September in Rolette?
How many days does it rain in September in Rolette?
When it does not snow in Rolette?
Does it snow in Rolette in September?
How many hours of daylight does Rolette have in September?
When is the sunrise / sunset in September in Rolette?
How long on average sun shines in September in Rolette?
What is the UV index intensity in September in Rolette?
Average temperature in September
Rolette, ND
- Average high temperature in September: 67.6°F
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is January (14.2°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (0.5°F).
Average pressure in September
Rolette, ND
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Rolette, ND
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is October (11mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Rolette, ND
- Average humidity in September: 62%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Rolette, ND
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in September
Rolette, ND
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Rolette, ND
- Average snowfall in September: 0"
The month with the highest snowfall is November (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rolette, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rolette, ND
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Rolette, ND
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in September
Rolette, ND
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Rolette, ND
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Rolette, 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).
Rolette, North Dakota, USA
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