Weather By Day

September International Falls Weather 
September International Falls Weather
Record High: 96°F
Normal High: 65°F
Normal Low: 42°F
Record Low: 20°F
Avg Monthly Rain: 3.03"
Rec 1 Day Rain: 3.34"
Avg Monthly Snow: 0.1"
Rec 1 Day Snow: 2"

International Falls Weather In September

The hottest September day in International Falls for the past 71 years was 96 degrees Fahrenheit, measured on September 7, 1906, and the normal high is 65. The lowest documented temperature in September for International Falls for the past 71 years was 20 most recently encountered on September 26, 1965, while the normal low measured temperature is 42.

According to National Weather Service historical International Falls September Weather data, on September 3, 1926, the high temperature did not exceed 35 degrees Fahrenheit, the lowest high measured in International Falls in the past 71 years. NWS weather data additionally shows that on September 8, 2002, the lowest recorded temperature on that day did not drop below 73 degrees, the highest low measured in International Falls in the last 71 years.

National Weather Service data shows that the high temperature in International Falls on September First averages 71 degrees Fahrenheit and the high on the final day of September averages 60 degrees. The daily low temperature in International Falls on September First averages 48 degrees Fahrenheit and the low on the last day of September averages 37 degrees.

International Falls usually receives an average of 3.03 inches of precipitation during September. September International Falls Weather records show that on September 21, 1973 International Falls received 3.34 inches of rain, the most rain measured in a single day in September. International Falls receives an average of 0.1 inches of snow in September.On September 26, 1912 International Falls received 2 inches of precipitation, the highest snowfall recorded in a single day in September.