September weather forecast and climate
Marion, ND

September, the first month of the autumn, in Marion, is also an agreeable month, with average temperature fluctuating between 51.4°F (10.8°C) and 70.7°F (21.5°C).

Temperature

In September, the average high-temperature decreases, from a moderately hot 80.2°F (26.8°C) in August, to an agreeable 70.7°F (21.5°C). The average low-temperature, in Marion, North Dakota, is 51.4°F (10.8°C).

Humidity

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

Rainfall

In Marion, it is raining for 8.2 days, with typically 1.06" (27mm) of accumulated precipitation. In Marion, during the entire year, the rain falls for 94.8 days and collects up to 14.92" (379mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Marion, the average length of the day is 12.5h.

Sunshine

In September, the average sunshine in Marion is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Marion?

The average high-temperature, in September, is 70.7°F (21.5°C), while the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in September in Marion?

In September, the average relative humidity is 62%.

How much does it rain in Marion in September?

In September, in Marion, the rain falls for 8.2 days. Throughout September, 1.06" (27mm) of precipitation is accumulated.

Does it snow in Marion in September?

In Marion, North Dakota, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Marion?

June through September are months without snowfall.

How many hours of daylight does Marion have in September?

The average length of the day in September in Marion is 12.5h.

How many hours of sunshine does Marion have in September?

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

What is the UV index intensity in September in Marion?

The average daily maximum UV index in September in Marion 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 - Marion, ND
  • Average high temperature in September: 21.5°C

The warmest month (with the highest average high temperature) is July (27°C).
The month with the lowest average high temperature is January (-8.3°C).

  • Average low temperature in September: 10.8°C

The month with the highest average low temperature is July (15.9°C).
The coldest month (with the lowest average low temperature) is January (-15.9°C).

Average pressure in September - Marion, ND
  • Average pressure in September: 1014.6mbar

The month with the highest atmospheric pressure is February (1021.9mbar).
The month with the lowest atmospheric pressure is June (1011mbar).

Average wind speed in September - Marion, ND
  • Average wind speed in September: 16.4km/h

The windiest month (with the highest average wind speed) is October (18.3km/h).
The calmest months (with the lowest average wind speed) are July and August (13.7km/h).

Average humidity in September - Marion, 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%).

Average rainfall in September - Marion, ND
  • Average rainfall in September: 27mm

The wettest month (with the highest rainfall) is June (86mm).
The driest month (with the least rainfall) is January (10mm).

Average rainfall days in September - Marion, 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).

Average snowfall in September - Marion, ND
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (79mm).
Months with the least snowfall are June, July, August and September (0mm).

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

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

Average daylight in September / Average sunshine in September - Marion, 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: 10.9h).
The month with the least sunshine is January (Average sunshine: 3.3h).

Average sunshine days in September - Marion, 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).

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

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

Average cloud cover in September - Marion, ND
  • Average cloud cover in September: 28

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).

Average visibility in September - Marion, ND
  • Average visibility in September: 10km

Months with the highest visibility are May, August, September and October (10km).
Months with the lowest visibility are January, February and March (8km).