Weather on September 27
Greeley, CO
55 Years of Data
Avg High
78°F
Avg Low
45°F
Warmest
2024
75°F avg
Coldest
1996
43°F avg
About This Date
September 27th in Greeley, CO typically brings pleasant fall weather, with average highs around 78°F and lows near 45°F — a 33°F daily swing. Over 55 years of records, the warmest September 27th was in 2024 (75°F average), while the coldest was 1996 (43°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 15% of September 27th dates historically, with the wettest September 27th recording 1.73" of rain. The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.
Planning for September 27th in Greeley, CO? Great weather for outdoor activities.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 51° | 66° | — | — |
| 2024warmest | 87° | 62° | 75° | — | — |
| 2023 | 89° | 48° | 69° | — | — |
| 2022 | 82° | 49° | 65° | — | — |
| 2021 | 93° | 50° | 72° | — | — |
| 2020 | 79° | 47° | 63° | — | — |
| 2019 | 80° | 48° | 64° | — | — |
| 2018 | 79° | 41° | 60° | — | — |
| 2017 | 60° | 48° | 54° | 0.1" | — |
| 2016 | 85° | 43° | 64° | — | — |
| 2015 | 93° | 50° | 72° | — | — |
| 2014 | 87° | 50° | 69° | — | — |
| 2013 | 71° | 43° | 57° | 0.46" | — |
| 2012 | 70° | 50° | 60° | 0.15" | — |
| 2011 | 89° | 50° | 70° | — | — |
| 2010 | 91° | 43° | 67° | — | — |
| 2009 | 86° | 48° | 67° | — | — |
| 2008 | 73° | 52° | 62° | — | — |
| 2007 | 78° | 41° | 60° | — | — |
| 2006 | 80° | 42° | 61° | — | — |
| 2005 | 89° | 48° | 69° | 0.05" | — |
| 2004 | 76° | 44° | 60° | — | — |
| 2003 | 72° | 42° | 57° | — | — |
| 2002 | 78° | 37° | 58° | — | — |
| 2001 | 92° | 52° | 72° | — | — |
| 2000 | 78° | 39° | 59° | — | — |
| 1999 | 56° | 37° | 46° | 0.25" | — |
| 1998 | 80° | 48° | 64° | — | — |
| 1997 | 83° | 51° | 67° | — | — |
| 1996coldest | 58° | 28° | 43° | — | — |
| 1995 | 82° | 47° | 64° | — | — |
| 1994 | 83° | 42° | 62° | — | — |
| 1993 | 85° | 38° | 61° | — | — |
| 1992 | 82° | 39° | 61° | — | — |
| 1991 | 80° | 40° | 60° | — | — |
| 1990 | 69° | 52° | 60° | — | — |
| 1989 | 85° | 46° | 65° | — | — |
| 1988 | 76° | 53° | 64° | 0.2" | — |
| 1987 | 74° | 48° | 61° | — | — |
| 1986 | 75° | 33° | 54° | — | — |
| 1985 | 57° | 38° | 47° | — | — |
| 1984 | 51° | 37° | 44° | — | — |
| 1983 | 86° | 47° | 66° | — | — |
| 1982 | 81° | 50° | 65° | — | — |
| 1981 | 79° | 40° | 59° | — | — |
| 1980 | 88° | 40° | 64° | — | — |
| 1979 | 81° | 47° | 64° | — | — |
| 1978 | 84° | 45° | 64° | — | — |
| 1977 | 87° | 47° | 67° | — | — |
| 1976 | 50° | 40° | 45° | 1.73" | — |
| 1975 | 85° | 40° | 62° | — | — |
| 1974 | 85° | 44° | 64° | 0.25" | — |
| 1973 | 59° | 35° | 47° | — | — |
| 1972 | 81° | 39° | 60° | — | — |
| 1971 | 75° | 44° | 60° | — | — |
55 years of data from GREELEY UNC