September weather forecastLake Itasca, MN
September
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 12h and 30min
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 18min
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: 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: 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: 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: 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).
