September weather forecast and climate
Dawson, ND

Weather in September

September, the first month of the autumn, in Dawson, is still a pleasant month, with average temperature fluctuating between 52°F (11.1°C) and 72°F (22.2°C).

Temperature

In September, the average high-temperature decreases, from a warm 82.2°F (27.9°C) in August, to a pleasant 72°F (22.2°C). In September, in Dawson, the average low-temperature is 52°F (11.1°C).

Humidity

In Dawson, North Dakota, the average relative humidity is 57%.

Rainfall

In Dawson, North Dakota, during 8.9 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Dawson, during the entire year, the rain falls for 105.9 days and collects up to 15" (381mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day in Dawson, North Dakota, is 12.5h.

Sunshine

The average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index in Dawson, North Dakota, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Dawson?

In Dawson, in September, the average high-temperature is 72°F (22.2°C), and the average low-temperature is 52°F (11.1°C).

What is the average humidity in September in Dawson?

In September, the average relative humidity is 57%.

How many days does it rain in September in Dawson?

In Dawson, in September, it is raining for 8.9 days, with typically 1.22" (31mm) of accumulated precipitation.

Does it snow in Dawson in September?

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

When it does not snow in Dawson?

June through September are months without snowfall in Dawson.

What is the average length of the day in September in Dawson?

The average length of the day in September in Dawson, North Dakota, is 12.5h.

How many hours of sunshine does Dawson have in September?

In September, the average sunshine in Dawson, North Dakota, is 8.6h.

What is the UV index reading in September in Dawson?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in September
Dawson, ND

Average temperature in September - Dawson, ND
  • Average high temperature in September: 72°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in September: 52°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 (6.1°F).

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Average pressure in September
Dawson, ND

Average pressure in September - Dawson, ND
  • Average pressure in September: 29.95"

The month with the highest atmospheric pressure is February (30.17").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in September
Dawson, ND

Average wind speed in September - Dawson, ND
  • Average wind speed in September: 9.8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in September
Dawson, ND

Average humidity in September - Dawson, 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%).

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Average rainfall in September
Dawson, ND

Average rainfall in September - Dawson, ND
  • Average rainfall in September: 1.22"

The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in September
Dawson, ND

Average rainfall days in September - Dawson, ND
  • Average rainfall days in September: 8.9 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in September
Dawson, ND

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

The month with the highest snowfall is February (4.33").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Dawson, ND

Average snowfall days in September - Dawson, ND
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (15.7 days).
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
Dawson, ND

Average daylight in September / Average sunshine in September - Dawson, ND
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 3.8h).

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Average sunshine days in September
Dawson, ND

Average sunshine days in September - Dawson, 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 March (12.3 days).

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Average UV index in September
Dawson, ND

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

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in September
Dawson, ND

Average cloud cover in September - Dawson, ND
  • Average cloud cover in September: 25

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

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Average visibility in September
Dawson, ND

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

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

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