September weather forecast
Sweet Briar, ND

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Weather in September

September, the first month of the autumn in Sweet Briar, is also an agreeable month, with an average temperature fluctuating between 51.8°F (11°C) and 71.8°F (22.1°C).

Temperature

September indicates a shift in the average high-temperature, from August's warm 82°F (27.8°C) to a pleasant 71.8°F (22.1°C). Sweet Briar records a consistent low-temperature of 51.8°F (11°C) during September nights.

Humidity

The average relative humidity in September in Sweet Briar is 57%.

Rainfall

In Sweet Briar, in September, it is raining for 8.9 days, with typically 1.46" (37mm) of accumulated precipitation. In Sweet Briar, during the entire year, the rain falls for 94.3 days and collects up to 14.29" (363mm) of precipitation.

Snowfall

In Sweet Briar, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of the month, sunrise is at 7:05 am and sunset at 8:23 pm. On the last day of September, sunrise is at 7:43 am and sunset at 7:25 pm CDT.

Sunshine

In Sweet Briar, the average sunshine in September is 8.6h.

UV index

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 the average person.
Note: A daily high UV index of 4 in September leads to these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Sweet Briar?

The average high-temperature and low-temperature in Sweet Briar during September are 71.8°F (22.1°C) and 51.8°F (11°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is calculated to be 84.2°F (29°C).

What is the average humidity in September in Sweet Briar?

In September, the average relative humidity in Sweet Briar, North Dakota, is 57%.

How many days does it rain in September in Sweet Briar?

In Sweet Briar, North Dakota, in September, during 8.9 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow in Sweet Briar?

In Sweet Briar, snow does not fall in June through September.

Does it snow in Sweet Briar in September?

In Sweet Briar, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Sweet Briar have in September?

In Sweet Briar, the average day length in September is 12h and 32min.

What time are sunrise and sunset in September in Sweet Briar?

In September, on the first day of the month, sunrise is at 7:05 am and sunset at 8:23 pm. On the last day of the month, in Sweet Briar, North Dakota, sunrise is at 7:43 am and sunset at 7:25 pm CDT.

How long on average sun shines in September in Sweet Briar?

In September, the average sunshine duration is 8.6h.

What is the UV index intensity in September in Sweet Briar?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Sweet Briar, ND

Average temperature in September - Sweet Briar, ND
  • Average high temperature in September: 71.8°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in September: 51.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in September
Sweet Briar, ND

Average pressure in September - Sweet Briar, 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
Sweet Briar, ND

Average wind speed in September - Sweet Briar, ND
  • Average wind speed in September: 9.9mph

The windiest months (with the highest average wind speed) are April and October (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in September
Sweet Briar, ND

Average humidity in September - Sweet Briar, ND
  • Average humidity in September: 57%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September
Sweet Briar, ND

Average rainfall in September - Sweet Briar, ND
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in September
Sweet Briar, ND

Average rainfall days in September - Sweet Briar, ND
  • Average rainfall days in September: 8.9 days

The month with the highest number of rainy days is June (13.1 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in September
Sweet Briar, ND

Average snowfall in September - Sweet Briar, ND
  • Average snowfall in September: 0"

The month with the highest snowfall is December (3.31").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Sweet Briar, ND

Average snowfall days in September - Sweet Briar, ND
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Sweet Briar, ND

Average daylight in September / Average sunshine in September - Sweet Briar, ND
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Sweet Briar, ND

Average sunshine days in September - Sweet Briar, ND
  • Average sunshine days in September: 20.1 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (14.6 days).

Average UV index in September
Sweet Briar, ND

Average UV index in September - Sweet Briar, 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 November and December (UV index 1).

Average cloud cover in September
Sweet Briar, ND

Average cloud cover in September - Sweet Briar, ND
  • Average cloud cover in September: 25

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in September
Sweet Briar, ND

Average visibility in September - Sweet Briar, 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).

Sweet Briar, North Dakota, USA

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