Denver - Recent September Temperatures and Rainfall





The numbers here describe what the September weather in Denver, Colorado 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 hot days or freezing nights occurred each September. Then there's information on how much rain actually landed this month during recent years, as well as how often Denver had wet weather.

The climate data come from weather measurements made at Denver's Stapleton neighborhood.

Temperature Weather iconTemperature

September temperature averages by year in Denver
High °F Low °F Year High °C Low °C
83 51 2018 28 11
80 51 2017 27 10
83 49 2016 28 10
85 52 2015 29 11
80 49 2014 26 10
79 54 2013 26 12
80 51 2012 27 10
77 48 2011 25 9
84 49 2010 29 9
Number of days in September when the temperature in Denver dropped to 32 or below, or rose to at least 70 or 90 degrees Fahrenheit
32 °F
0 °C
Year 70 °F
21 °C
90 °F
32 °C
0 2018 28 9
0 2017 23 10
0 2016 28 8
0 2015 30 5
1 2014 27 4
0 2013 23 8
0 2012 25 7
0 2011 22 2
0 2010 29 7

Rainy Weather iconRain

This table gives the total precipitation that fell on Denver 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 Denver
Days Year Inches Milli­metres
4 2018 0.9 23
8 2017 1.1 27
2 2016 0.1 2
5 2015 0.2 5
8 2014 2.2 55
9 2013 13.9 353
6 2012 2.3 57
8 2011 1.6 41
2 2010 0.1 2
Reference

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

Denver - Recent Years
Denver - Extremes
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