September weather forecast
Olga, ND

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Weather in September

The first month of the autumn, September, is still a refreshing month in Olga, North Dakota, with temperature in the range of an average high of 67.8°F (19.9°C) and an average low of 49.6°F (9.8°C).

Temperature

September weather is marked by a drop in the average high-temperature, falling from a moderately hot 78.3°F (25.7°C) in August to a comfortable 67.8°F (19.9°C). In Olga, an average temperature of 49.6°F (9.8°C) is noted during September nights.

Humidity

In September, the average relative humidity is 62%.

Rainfall

In Olga, in September, during 9.7 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Olga, during the entire year, the rain falls for 105.9 days and collects up to 16.69" (424mm) of precipitation.

Snowfall

June through September are months without snowfall in Olga.

Daylight

The average length of the day in September is 12h and 34min.
On the first day of September, sunrise is at 6:50 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:12 pm CDT.

Sunshine

The average sunshine in September 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 exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

What are September temperatures?

During September, Olga experiences an average high-temperature of 67.8°F (19.9°C) and a low-temperature of 49.6°F (9.8°C).

What is the average humidity in September?

In Olga, North Dakota, the average relative humidity in September is 62%.

How much does it rain in September?

In Olga, during September, the rain falls for 9.7 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Olga?

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

Does it snow in September?

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

What is the average length of the day in September?

In September, the average day length is 12h and 34min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:50 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:12 pm CDT.

How long on average sun shines in September?

In Olga, the average sunshine duration in September is 8.6h.

How high is the UV index in September?

In Olga, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Olga, ND

Average temperature in September - Olga, ND
  • Average high temperature in September: 67.8°F

The warmest month (with the highest average high temperature) is August (78.3°F).
The month with the lowest average high temperature is January (13.5°F).

  • Average low temperature in September: 49.6°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (0.5°F).

Average pressure in September
Olga, ND

Average pressure in September - Olga, 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
Olga, ND

Average wind speed in September - Olga, ND
  • Average wind speed in September: 10.1mph

The windiest month (with the highest average wind speed) is October (11.2mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).

Average humidity in September
Olga, ND

Average humidity in September - Olga, ND
  • Average humidity in September: 62%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (60%).

Average rainfall in September
Olga, ND

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

The wettest month (with the highest rainfall) is June (2.99").
The driest months (with the least rainfall) are January and February (0.63").

Average rainfall days in September
Olga, ND

Average rainfall days in September - Olga, ND
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in September
Olga, ND

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

The month with the highest snowfall is December (4.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Olga, ND

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

The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Olga, ND
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in September
Olga, ND

Average sunshine days in September - Olga, ND
  • Average sunshine days in September: 19 days

The month with the most sunshine days is August (20.1 days).
The month with the least sunshine days is June (8.7 days).

Average UV index in September
Olga, ND

Average UV index in September - Olga, 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 January, February, November and December (UV index 1).

Average cloud cover in September
Olga, ND

Average cloud cover in September - Olga, ND
  • Average cloud cover in September: 30

The months with the most cloud cover are January and February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in September
Olga, ND

Average visibility in September - Olga, 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).

Olga, North Dakota, USA

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