Weather on September 12
Aurora, CO
55 Years of Data
About This Date
September 12th in Aurora, CO typically brings pleasant fall weather, with average highs around 77°F and lows near 50°F — a 27°F daily swing. Over 56 years of records, the warmest September 12th was in 2017 (74°F average), while the coldest was 1989 (36°F) — a 38°F range across recorded history. Precipitation has occurred on 29% of recorded September 12th dates, with snow falling 4% of the time (heaviest snowfall: 2.3"). The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for September 12th in Aurora, CO? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 81° | 52° | 67° | — | — |
| 2025 | 88° | 61° | 74° | 0.03" | — |
| 2024 | 82° | 55° | 69° | — | — |
| 2023 | 69° | 46° | 58° | 0.26" | — |
| 2022 | 77° | 47° | 62° | — | — |
| 2021 | 85° | 56° | 70° | — | — |
| 2020 | 70° | 38° | 54° | — | — |
| 2019 | 80° | 51° | 66° | 0.07" | — |
| 2018 | 90° | 59° | 74° | — | — |
| 2017warmest | 89° | 59° | 74° | — | — |
| 2016 | 91° | 47° | 69° | — | — |
| 2015 | 77° | 49° | 63° | — | — |
| 2014 | 50° | 33° | 42° | 0.19" | — |
| 2013 | 67° | 62° | 64° | 3.88" | — |
| 2012 | 87° | 53° | 70° | 0.41" | — |
| 2011 | 83° | 49° | 66° | — | — |
| 2010 | 82° | 46° | 64° | — | — |
| 2009 | 72° | 52° | 62° | — | — |
| 2008 | 62° | 49° | 55° | 0.92" | — |
| 2007 | 81° | 42° | 61° | — | — |
| 2006 | 72° | 46° | 59° | 0.05" | — |
| 2005 | 88° | 56° | 72° | — | — |
| 2004 | 85° | 53° | 69° | — | — |
| 2003 | 68° | 46° | 57° | — | — |
| 2002 | 73° | 53° | 63° | — | — |
| 2001 | 86° | 50° | 68° | — | — |
| 2000 | 80° | 46° | 63° | — | — |
| 1999 | 76° | 47° | 61° | — | — |
| 1998 | 83° | 59° | 71° | 0.07" | — |
| 1997 | 86° | 59° | 73° | — | — |
| 1996 | 73° | 53° | 63° | 0.42" | — |
| 1995 | 79° | 48° | 63° | — | — |
| 1994 | 90° | 55° | 72° | — | — |
| 1993 | 92° | 50° | 71° | — | — |
| 1992 | 89° | 58° | 73° | — | — |
| 1991 | 77° | 53° | 65° | 0.12" | — |
| 1990 | 92° | 51° | 71° | — | — |
| 1989coldest | 40° | 33° | 36° | 0.37" | 2.3" |
| 1988 | 48° | 41° | 45° | 0.43" | — |
| 1987 | 83° | 47° | 65° | — | — |
| 1986 | 80° | 48° | 64° | — | — |
| 1985 | 74° | 51° | 62° | — | — |
| 1984 | 87° | 54° | 70° | — | — |
| 1983 | 76° | 45° | 60° | — | — |
| 1982 | 57° | 44° | 51° | 0.09" | — |
| 1981 | 89° | 58° | 73° | — | — |
| 1980 | 78° | 53° | 66° | — | — |
| 1979 | 62° | 48° | 55° | — | — |
| 1978 | 74° | 48° | 61° | — | — |
| 1977 | 75° | 52° | 63° | 0.02" | — |
| 1976 | 81° | 55° | 68° | — | — |
| 1975 | 58° | 44° | 51° | — | — |
| 1974 | 46° | 34° | 40° | 0.18" | 1.8" |
| 1973 | 75° | 47° | 61° | — | — |
| 1972 | 80° | 53° | 67° | — | — |
| 1971 | 81° | 57° | 69° | — | — |
Aurora, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Aurora, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Aurora, 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 Aurora, CO
Most pleasant months in Aurora, CO: May, September, October.
What to expect on September 12th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
September 12th outlook →