Rochester - Recent September Temperatures and Rainfall





The numbers here describe what the September weather in Rochester, New York was like for every year since 2010. A series of tables gives September data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many really hot days occurred each September. Then there's information on how much rain actually landed this month during recent years, as well as how often Rochester had wet weather.

The climate data come from weather measurements made at the Greater Rochester International Airport.

Temperature Weather iconTemperature

September temperature averages by year in Rochester
High °F Low °F Year High °C Low °C
73 52 2020 23 11
75 54 2019 24 12
77 59 2018 25 15
77 55 2017 25 13
78 56 2016 25 13
78 58 2015 25 14
74 52 2014 23 11
71 51 2013 22 10
72 52 2012 22 11
73 56 2011 23 13
71 53 2010 22 12
Number of days in September when the temperature in Rochester rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2020 21 0
2019 24 0
2018 22 3
2017 20 4
2016 26 3
2015 25 2
2014 21 1
2013 16 2
2012 18 0
2011 20 0
2010 13 1

Rainy Weather iconRain

This table gives the total precipitation that fell on Rochester during September in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more.

Total rainfall for September in Rochester
Days Year Inches Milli­metres
9 2020 2.3 58
12 2019 3.0 76
10 2018 2.8 71
9 2017 1.3 33
8 2016 2.3 59
9 2015 4.1 103
11 2014 1.3 34
10 2013 2.4 61
12 2012 4.5 114
15 2011 3.8 96
16 2010 3.4 86
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

Rochester - Recent Years
Rochester - Extremes
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