September weather forecast
Valley City, ND

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Weather in September

As summer gives way to fall, September in Valley City brings milder weather conditions. Noteworthy here is the significant drop in temperature highs, although it remains warm. Relative humidity levels start creeping up again, bringing a noticeable change in the atmosphere. With decreasing daylight hours, the days are shorter. Despite this, solar radiation remains reasonably high, suggesting a need for continued sun protection.

Temperature

As September arrives, Valley City's weather displays a decrease in high-temperatures, transitioning from August's moderately hot 80.2°F (26.8°C) to an agreeable 70.7°F (21.5°C). Valley City's nighttime temperature in September drops to an average of 51.4°F (10.8°C).

Humidity

In September, the average relative humidity in Valley City is 62%.

Rainfall

In Valley City, in September, during 8.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Valley City, there are 94.8 rainfall days, and 14.92" (379mm) of precipitation is accumulated.

Snowfall

In Valley City, snow does not fall in June through September.

Daylight

In Valley City, the average length of the day in September is 12h and 32min.
On the first day of September in Valley City, North Dakota, sunrise is at 6:52 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:12 pm CDT.

Sunshine

In Valley City, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 4 during September translates into these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What are September temperatures in Valley City?

In Valley City, 70.7°F (21.5°C) is the average high-temperature and 51.4°F (10.8°C) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 84.2°F (29°C).

What is the average humidity in September in Valley City?

The average relative humidity in September in Valley City is 62%.

How many days does it rain in September in Valley City?

In Valley City, North Dakota, in September, it is raining for 8.2 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow in Valley City?

June through September are months without snowfall in Valley City.

Does it snow in Valley City in September?

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

How many hours of daylight does Valley City have in September?

In Valley City, the average day length in September is 12h and 32min.

When are sunrise and sunset in September in Valley City?

In September, on the first day of the month, sunrise is at 6:52 am and sunset at 8:10 pm. On the last day of the month, in Valley City, North Dakota, sunrise is at 7:30 am and sunset at 7:12 pm CDT.

How long on average sun shines in September in Valley City?

In September, the average sunshine duration in Valley City, North Dakota, is 8.6h.

What is the UV index intensity in September in Valley City?

In September, the average daily maximum UV index in Valley City is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
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
Valley City, ND

Average temperature in September - Valley City, ND
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (17.1°F).

  • Average low temperature in September: 51.4°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (3.4°F).

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Average pressure in September
Valley City, ND

Average pressure in September - Valley City, ND
  • Average pressure in September: 29.96"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).

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Average wind speed in September
Valley City, ND

Average wind speed in September - Valley City, ND
  • Average wind speed in September: 10.2mph

The windiest month (with the highest average wind speed) is October (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).

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Average humidity in September
Valley City, ND

Average humidity in September - Valley City, ND
  • Average humidity in September: 62%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in September
Valley City, ND

Average rainfall in September - Valley City, ND
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in September
Valley City, ND

Average rainfall days in September - Valley City, ND
  • Average rainfall days in September: 8.2 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (1.5 days).

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Average snowfall in September
Valley City, ND

Average snowfall in September - Valley City, ND
  • Average snowfall in September: 0"

The month with the highest snowfall is December (3.11").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Valley City, ND

Average snowfall days in September - Valley City, ND
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Valley City, ND

Average daylight in September / Average sunshine in September - Valley City, 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: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days in September
Valley City, ND

Average sunshine days in September - Valley City, ND
  • Average sunshine days in September: 19.1 days

The month with the most sunshine days is October (20 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in September
Valley City, ND

Average UV index in September - Valley City, ND
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in September
Valley City, ND

Average cloud cover in September - Valley City, ND
  • Average cloud cover in September: 28

The months with the most cloud cover are January and February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Valley City, ND

Average visibility in September - Valley City, ND
  • Average visibility in September: 6mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).

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Valley City, North Dakota, USA

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