September weather forecast
Belfield, ND

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Weather in September

September announces the onset of autumn in Belfield, as the temperature registers a slight dip from August's warming highs and oscilates from 52.7°F (11.5°C) to 71.4°F (21.9°C). This month results in a drastic reduction in daylight hours, a key sign of the impending arrival of colder seasons. The autumn season announces itself with a riot of fall colors and crisp, cool breeze replacing the summer heat. A decrease in humidity levels further enhances the delightful fall experience. With relatively lesser rainfall, marked at 1.5" (38mm), the weather remains mostly clear and dry, making it an ideal time to observe the changing seasonal hues.

Temperature

September ushers in a slight temperature change, with average high-temperatures reducing from August's warm 81.7°F (27.6°C) to a pleasant 71.4°F (21.9°C). An average low-temperature of 52.7°F (11.5°C) is recorded during the nights in September.

Humidity

In September, the average relative humidity is 52%.

Rainfall

In Belfield, in September, during 8.2 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Belfield, during the entire year, the rain falls for 90.5 days and collects up to 13.78" (350mm) of precipitation.

Snowfall

In Belfield, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 6:13 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:33 pm MDT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

The average high-temperature and low-temperature during September are 71.4°F (21.9°C) and 52.7°F (11.5°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 82.4°F (28°C).

What is the average humidity in September?

In Belfield, the average relative humidity in September is 52%.

How many days does it rain in September?

In September, in Belfield, the rain falls for 8.2 days. Throughout September, 1.5" (38mm) of precipitation is accumulated.

When it does not snow?

In Belfield, snow does not fall in June through September.

Does it snow in September?

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

What is the average length of the day in September?

The average day length in September is 12h and 32min.

When is the sunrise / sunset in September?

On the first day of September in Belfield, North Dakota, sunrise is at 6:13 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:33 pm MDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.8h.

What is the UV index intensity in September?

In Belfield, the average daily maximum UV index in September is 4. A UV Index 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
Belfield, ND

Average temperature in September - Belfield, ND
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in September
Belfield, ND

Average pressure in September - Belfield, ND
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in September
Belfield, ND

Average wind speed in September - Belfield, ND
  • Average wind speed in September: 10.5mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

Average humidity in September
Belfield, ND

Average humidity in September - Belfield, ND
  • Average humidity in September: 52%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (51%).

Average rainfall in September
Belfield, ND

Average rainfall in September - Belfield, ND
  • Average rainfall in September: 1.5"

The wettest months (with the highest rainfall) are May and July (1.93").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in September
Belfield, ND

Average rainfall days in September - Belfield, ND
  • Average rainfall days in September: 8.2 days

The month with the highest number of rainy days is June (12.9 days).
The months with the least rainy days are January and February (2.3 days).

Average snowfall in September
Belfield, ND

Average snowfall in September - Belfield, ND
  • Average snowfall in September: 0"

The month with the highest snowfall is November (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Belfield, ND

Average snowfall days in September - Belfield, ND
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (11.9 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Belfield, ND

Average daylight in September / Average sunshine in September - Belfield, 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: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 24min).

Average sunshine days in September
Belfield, ND

Average sunshine days in September - Belfield, ND
  • Average sunshine days in September: 19.9 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is April (14.4 days).

Average UV index in September
Belfield, ND

Average UV index in September - Belfield, ND
  • Average UV index in September: 4

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in September
Belfield, ND

Average cloud cover in September - Belfield, ND
  • Average cloud cover in September: 24

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in September
Belfield, ND

Average visibility in September - Belfield, ND
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Belfield, North Dakota, USA

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