September weather forecast
Lake Itasca, MN

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Weather in September

September, the first month of the autumn in Lake Itasca, is also an enjoyable month, with an average temperature fluctuating between 67.5°F (19.7°C) and 48°F (8.9°C).

Temperature

The onset of September introduces a moderate change in Lake Itasca's weather, with average high-temperatures falling from August's moderately hot 76.8°F (24.9°C) to a refreshing 67.5°F (19.7°C). In Lake Itasca, in September, the average low-temperature is a frosty 48°F (8.9°C).

Humidity

The average relative humidity in September is 72%.

Rainfall

In Lake Itasca, in September, it is raining for 10.1 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, in Lake Itasca, there are 104.1 rainfall days, and 18.5" (470mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Lake Itasca is 12h and 32min.
On the first day of September in Lake Itasca, sunrise is at 6:41 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:01 pm CDT.

Sunshine

In Lake Itasca, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Lake Itasca?

An average high-temperature, in September, in Lake Itasca, is 67.5°F (19.7°C) and the average low-temperature is 48°F (8.9°C).

What is the average humidity in September in Lake Itasca?

In September, the average relative humidity in Lake Itasca, Minnesota, is 72%.

How much does it rain in Lake Itasca in September?

In Lake Itasca, during September, the rain falls for 10.1 days and regularly aggregates up to 1.57" (40mm) of precipitation.

When it does not snow in Lake Itasca?

June through September are months without snowfall in Lake Itasca.

Does it snow in Lake Itasca in September?

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

How many hours of daylight does Lake Itasca have in September?

In September, the average day length in Lake Itasca, Minnesota, is 12h and 32min.

When are sunrise and sunset in September in Lake Itasca?

On the first day of September in Lake Itasca, sunrise is at 6:41 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:01 pm CDT.

How many hours of sunshine does Lake Itasca have in September?

In September, the average sunshine duration in Lake Itasca, Minnesota, is 8.3h.

What is the UV index reading in September in Lake Itasca?

The average daily maximum UV index in September in Lake Itasca, Minnesota, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Lake Itasca, MN

Average temperature in September - Lake Itasca, MN
  • Average high temperature in September: 67.5°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (15.6°F).

  • Average low temperature in September: 48°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (1.2°F).

Average pressure in September
Lake Itasca, MN

Average pressure in September - Lake Itasca, MN
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in September
Lake Itasca, MN

Average wind speed in September - Lake Itasca, MN
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is October (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).

Average humidity in September
Lake Itasca, MN

Average humidity in September - Lake Itasca, MN
  • Average humidity in September: 72%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is May (70%).

Average rainfall in September
Lake Itasca, MN

Average rainfall in September - Lake Itasca, MN
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is February (0.71").

Average rainfall days in September
Lake Itasca, MN

Average rainfall days in September - Lake Itasca, MN
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in September
Lake Itasca, MN

Average snowfall in September - Lake Itasca, MN
  • Average snowfall in September: 0"

The month with the highest snowfall is December (6.1").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Lake Itasca, MN

Average snowfall days in September - Lake Itasca, MN
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Lake Itasca, MN

Average daylight in September / Average sunshine in September - Lake Itasca, MN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).

Average sunshine days in September
Lake Itasca, MN

Average sunshine days in September - Lake Itasca, MN
  • Average sunshine days in September: 18.7 days

The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is June (11.7 days).

Average UV index in September
Lake Itasca, MN

Average UV index in September - Lake Itasca, MN
  • 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
Lake Itasca, MN

Average cloud cover in September - Lake Itasca, MN
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Lake Itasca, MN

Average visibility in September - Lake Itasca, MN
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).

Lake Itasca, Minnesota, USA

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