Denver CO Recent September Temperatures, 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

September temperature averages by year in Denver
High °F	Low °F	Year	High °C	Low °C
82	50	2023	28	10
84	51	2022	29	11
84	51	2021	29	11
80	48	2020	27	9
86	53	2019	30	12
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	2023	27	6
0	2022	26	11
0	2021	27	8
2	2020	25	5
0	2019	30	5
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

Rain

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
6	2023	1.5	38
6	2022	0.6	14
7	2021	0.3	7
5	2020	0.8	20
4	2019	0.4	11
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

Denver - Recent September Temperatures and Rainfall

Temperature

Rain

Reference

More on Weather in Denver