Weather on September 12
Greeley, CO
55 Years of Data
Avg High
80°F
Avg Low
49°F
Warmest
2021
76°F avg
Coldest
1989
35°F avg
About This Date
September 12th in Greeley, CO typically brings warm fall weather, with average highs around 80°F and lows near 49°F — a 31°F daily swing. Over 55 years of records, the warmest September 12th was in 2021 (76°F average), while the coldest was 1989 (35°F) — a 41°F range across recorded history. Precipitation has occurred on 33% of recorded September 12th dates, with snow falling 4% of the time. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for September 12th in Greeley, CO? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 56° | 70° | — | — |
| 2024 | 95° | 51° | 73° | — | — |
| 2023 | 78° | 46° | 62° | — | — |
| 2022 | 92° | 46° | 69° | — | — |
| 2021warmest | 91° | 60° | 76° | 0.13" | — |
| 2020 | 84° | 43° | 63° | — | — |
| 2019 | 78° | 49° | 63° | 1.19" | — |
| 2018 | 97° | 54° | 75° | — | — |
| 2017 | 91° | 51° | 71° | — | — |
| 2016 | 87° | 53° | 70° | — | — |
| 2015 | 87° | 49° | 68° | — | — |
| 2014 | 47° | 34° | 40° | 0.38" | — |
| 2013 | 66° | 60° | 63° | 2.11" | — |
| 2012 | 85° | 44° | 64° | 1.24" | — |
| 2011 | 89° | 46° | 68° | — | — |
| 2010 | 87° | 45° | 66° | — | — |
| 2009 | 76° | 48° | 62° | 0.48" | — |
| 2008 | 64° | 50° | 57° | 3.56" | — |
| 2007 | 94° | 44° | 69° | — | — |
| 2006 | 82° | 49° | 65° | 0.3" | — |
| 2005 | 91° | 57° | 74° | — | — |
| 2004 | 94° | 51° | 72° | — | — |
| 2003 | 84° | 42° | 63° | — | — |
| 2002 | 82° | 55° | 69° | 0.2" | — |
| 2001 | 87° | 48° | 68° | — | — |
| 2000 | 87° | 46° | 67° | — | — |
| 1999 | 64° | 48° | 56° | — | — |
| 1998 | 88° | 58° | 73° | — | — |
| 1997 | 88° | 58° | 73° | — | — |
| 1996 | 75° | 55° | 65° | — | — |
| 1995 | 82° | 50° | 66° | — | — |
| 1994 | 91° | 53° | 72° | — | — |
| 1993 | 93° | 48° | 71° | 0.2" | — |
| 1992 | 89° | 59° | 74° | — | — |
| 1991 | 79° | 54° | 66° | 1.73" | — |
| 1990 | 92° | 49° | 70° | — | — |
| 1989coldest | 38° | 32° | 35° | 0.91" | 0.5" |
| 1988 | 48° | 43° | 45° | 1.85" | — |
| 1987 | 82° | 44° | 63° | — | — |
| 1986 | 81° | 44° | 62° | — | — |
| 1985 | 77° | 51° | 64° | — | — |
| 1984 | 90° | 54° | 72° | — | — |
| 1983 | 77° | 43° | 60° | — | — |
| 1982 | 61° | 43° | 52° | 0.51" | — |
| 1981 | 87° | 48° | 68° | — | — |
| 1980 | 79° | 51° | 65° | 0.05" | — |
| 1979 | 62° | 45° | 53° | — | — |
| 1978 | 76° | 44° | 60° | — | — |
| 1977 | 80° | 56° | 68° | 0.2" | — |
| 1976 | 81° | 53° | 67° | 0.3" | — |
| 1975 | 60° | 45° | 52° | — | — |
| 1974 | 53° | 33° | 43° | 1.32" | 0.5" |
| 1973 | 72° | 49° | 60° | — | — |
| 1972 | 80° | 56° | 68° | — | — |
| 1971 | 85° | 55° | 70° | — | — |
55 years of data from GREELEY UNC