Weather By Day

September Weather In Rochester  
September Rochester Weather
Record High: 99°F
Normal High: 69°F
Normal Low: 49°F
Record Low: 28°F
Avg Monthly Rain: 3.12"
Rec 1 Day Rain: 3.47"

Rochester Weather In September

The highest recorded temperature in September for Rochester for the past 51 years was 99 degrees Fahrenheit, registered on September 4, 1953, while the mean high temperature is 69. The lowest reported temperature in September for Rochester for the past 51 years was 28 on September 28, 1947, while the mean low daily temperature during the month is 49.

According to National Weather Service historical Rochester September Weather data, on September 30, 1947, the high temperature did not exceed 45 degrees Fahrenheit, the lowest high measured in Rochester in the past 51 years. Weather Service records additionally show that on September 15, 1939, the recorded low temperature for the day did not drop below 74 degrees, the highest low measured in Rochester in the last 51 years.

According to the National Weather Service, the high temperature in Rochester in September on the first day of the month averages 78 degrees and the high on the last day of the month averages 67 degrees. The average recorded low temperature in Rochester on September First is 57 degrees Fahrenheit and the average low on the last day of September is 45 degrees.

Rochester usually receives an average of 3.12 inches of precipitation during the month. The most rain recorded in a single day, as shown by September Rochester Weather data, was 3.47 inches on September 14, 1979.