Weather on September 13
Denver, CO
55 Years of Data
About This Date
September 13th in Denver, CO typically brings pleasant fall weather, with average highs around 77°F and lows near 48°F — a 29°F daily swing. Over 55 years of records, the warmest September 13th was in 1990 (78°F average), while the coldest was 2014 (39°F) — a 39°F range across recorded history. Precipitation has occurred on 27% of recorded September 13th dates, with snow falling 2% of the time (heaviest snowfall: 1.5"). The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for September 13th in Denver, CO? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 52° | 67° | — | — |
| 2024 | 91° | 49° | 70° | — | — |
| 2023 | 79° | 44° | 61° | — | — |
| 2022 | 91° | 48° | 70° | — | — |
| 2021 | 88° | 55° | 71° | — | — |
| 2020 | 80° | 46° | 63° | — | — |
| 2019 | 76° | 46° | 61° | — | — |
| 2018 | 94° | 58° | 76° | — | — |
| 2017 | 93° | 57° | 75° | — | — |
| 2016 | 75° | 48° | 62° | 0.18" | — |
| 2015 | 85° | 52° | 68° | — | — |
| 2014coldest | 46° | 32° | 39° | 0.13" | — |
| 2013 | 63° | 57° | 60° | 2.06" | — |
| 2012 | 57° | 50° | 54° | 1.4" | — |
| 2011 | 86° | 53° | 70° | — | — |
| 2010 | 83° | 51° | 67° | — | — |
| 2009 | 57° | 47° | 52° | 0.48" | — |
| 2008 | 65° | 50° | 57° | 0.74" | — |
| 2007 | 90° | 48° | 69° | — | — |
| 2006 | 80° | 47° | 63° | — | — |
| 2005 | 90° | 51° | 70° | — | — |
| 2004 | 95° | 55° | 75° | — | — |
| 2003 | 84° | 45° | 64° | — | — |
| 2002 | 68° | 49° | 58° | 0.56" | — |
| 2001 | 86° | 53° | 70° | 0.38" | — |
| 2000 | 92° | 51° | 71° | — | — |
| 1999 | 69° | 38° | 53° | — | — |
| 1998 | 79° | 51° | 65° | — | — |
| 1997 | 85° | 53° | 69° | 0.08" | — |
| 1996 | 74° | 50° | 62° | — | — |
| 1995 | 78° | 45° | 61° | — | — |
| 1994 | 86° | 53° | 70° | — | — |
| 1993 | 49° | 32° | 40° | 1.17" | 1.5" |
| 1992 | 86° | 60° | 73° | — | — |
| 1991 | 76° | 50° | 63° | — | — |
| 1990warmest | 99° | 57° | 78° | — | — |
| 1989 | 60° | 34° | 47° | — | — |
| 1988 | 51° | 42° | 47° | 0.33" | — |
| 1987 | 84° | 31° | 57° | — | — |
| 1986 | 64° | 44° | 54° | — | — |
| 1985 | 74° | 45° | 59° | — | — |
| 1984 | 70° | 52° | 61° | — | — |
| 1983 | 78° | 45° | 61° | — | — |
| 1982 | 58° | 46° | 52° | 0.15" | — |
| 1981 | 86° | 50° | 68° | — | — |
| 1980 | 74° | 46° | 60° | 0.05" | — |
| 1979 | 68° | 44° | 56° | — | — |
| 1978 | 75° | 37° | 56° | — | — |
| 1977 | 72° | 48° | 60° | 0.2" | — |
| 1976 | 75° | 47° | 61° | — | — |
| 1975 | 66° | 40° | 53° | — | — |
| 1974 | 58° | 40° | 49° | — | — |
| 1973 | 81° | 52° | 66° | — | — |
| 1972 | 69° | 50° | 60° | 0.79" | — |
| 1971 | 93° | 46° | 70° | — | — |
Denver, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Denver, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Denver, CO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Denver, CO
Denver, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.