September weather forecastSheyenne, ND
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Sheyenne, North Dakota, with an average temperature varying between 70°F (21.1°C) and 50.9°F (10.5°C).Temperature
Sheyenne's transition into September involves a shift in temperature, receding from a warm 79.7°F (26.5°C) in August to a pleasant 70°F (21.1°C). The temperature in Sheyenne dips to an average of 50.9°F (10.5°C) during September nights.Humidity
In September, the average relative humidity in Sheyenne is 61%.Rainfall
In Sheyenne, in September, it is raining for 8.5 days, with typically 1.42" (36mm) of accumulated precipitation. In Sheyenne, during the entire year, the rain falls for 100.3 days and collects up to 16.65" (423mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 6:55 am and sunset at 8:16 pm. On the last day of September, in Sheyenne, sunrise is at 7:35 am and sunset at 7:17 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index in Sheyenne is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 4 in September translates into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sheyenne, ND
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (16.3°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (1.9°F).
Average pressure in September
Sheyenne, ND
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Sheyenne, ND
- Average wind speed in September: 10mph
The windiest month (with the highest average wind speed) is October (11.3mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Sheyenne, ND
- Average humidity in September: 61%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Sheyenne, ND
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is June (2.95").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in September
Sheyenne, ND
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Sheyenne, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sheyenne, ND
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (16.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Sheyenne, ND
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Sheyenne, ND
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in September
Sheyenne, 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 and December (UV index 1).
Average cloud cover in September
Sheyenne, ND
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Sheyenne, 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).
