Weather By Day

September Weather In Rochester  
September Rochester Weather
Record High: 99°F
Normal High: 71°F
Normal Low: 51°F
Record Low: 28°F
Avg Monthly Rain: 3.45"
Rec 1 Day Rain: 3.47"

Rochester Weather In September

The highest recorded temperature in September for Rochester for the past 70 years was 99 degrees Fahrenheit, measured on September 4, 1953, and the standard high is 71. The coldest day reported in Rochester in September for the past 70 years was 28 most recently encountered on September 28, 1947, and the typical low is 51.

US National Weather Service Rochester September Weather data records that on September 30, 1947, the high temperature did not exceed 45 degrees Fahrenheit, the lowest high measured in Rochester in the past 70 years. Weather Service data also shows that on September 15, 1939, the lowest recorded temperature for the day did not drop below 74 degrees, the highest low measured temperature in Rochester in the last 70 years.

Weather Service historical data shows that the average daily high temperature in Rochester on September First is 78 degrees Fahrenheit and the average high on the last day of September is 67 degrees. The low temperature in Rochester in September on the first day of the month averages 57 degrees and the low temperature on the last day of the month averages 45 degrees.

Rochester receives an average of 3.45 inches of precipitation during September. The most precipitation recorded on a single day in September, according to September Rochester Weather data, was 3.47 inches on September 14, 1979.