United StatesThe weather in September in International Falls
It's pleasantly warm in September in International Falls with an average temperature of 20°C. Temperatures this month range from a low of 14°C to a high of 25°C. At night, you can expect temperatures between 2°C and 14°C.
Looking for sun? September isn’t a good month to be in International Falls. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for International Falls, Minnesota. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 33°C in 2023, International Falls reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 6°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -7°C to a highest value of 20°C.
Rainfall amount
In September, there is an average of 133 mm of precipitation, spread over 14 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for International Falls
Click on any day in September to get detailed info about the usual weather on that day in International Falls. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| International Falls | New York | |
|---|---|---|
| Average temperature | 20°C | 27°C |
| Max. temperature | 25°C | 31°C |
| Min. temperature | 2°C | -5°C |
| Total precipitation | 133 mm | 57 mm |
| Rainy days | 14 days | 9 days |
Start of September
The month of September starts in International Falls with warm temps, averaging around 23°C during the day and nights around 10°C.
Mid September
By mid-September, daytime temps drop to around 21°C, with nights around 10°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in International Falls is around 16°C, while nighttime temps are about 7°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of International Falls for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in International Falls, Minnesota. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in International Falls
Temperature in September in International Falls over the years
Precipitation charts
These charts show the average amount of precipitation in September in International Falls, Minnesota. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in International Falls
Total precipitation in September in International Falls over the years
Daily UV index in September in International Falls
This chart shows the average daily UV index in September in International Falls, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in International Falls
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Average weather in International Falls by month
Click on a month below to see detailed weather info for International Falls. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.