Weather on September 1
Greeley, CO
55 Years of Data
Avg High
87°F
Avg Low
54°F
Warmest
2019
80°F avg
Coldest
1972
57°F avg
About This Date
September 1st in Greeley, CO typically brings warm fall weather, with average highs around 87°F and lows near 54°F — a 33°F daily swing. Over 54 years of records, the warmest September 1st was in 2019 (80°F average), while the coldest was 1972 (57°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 15% of September 1st dates historically, with the wettest September 1st recording 2.46" of rain. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for September 1st in Greeley, CO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 54° | 69° | — | — |
| 2024 | 92° | 54° | 73° | — | — |
| 2023 | 99° | 59° | 79° | — | — |
| 2022 | 96° | 54° | 75° | 0.03" | — |
| 2021 | 95° | 59° | 77° | — | — |
| 2020 | 90° | 48° | 69° | — | — |
| 2019warmest | 101° | 59° | 80° | — | — |
| 2018 | 87° | 55° | 71° | — | — |
| 2017 | 89° | 56° | 72° | — | — |
| 2016 | 86° | 55° | 71° | — | — |
| 2015 | 92° | 53° | 72° | — | — |
| 2014 | 78° | 52° | 65° | — | — |
| 2013 | 85° | 63° | 74° | — | — |
| 2012 | 93° | 63° | 78° | — | — |
| 2011 | 97° | 60° | 78° | — | — |
| 2010 | 92° | 48° | 70° | — | — |
| 2009 | 94° | 54° | 74° | — | — |
| 2008 | 87° | 60° | 74° | 0.2" | — |
| 2007 | 94° | 58° | 76° | 0.13" | — |
| 2005 | 86° | 44° | 65° | — | — |
| 2004 | 90° | 50° | 70° | — | — |
| 2003 | 83° | 51° | 67° | — | — |
| 2002 | 90° | 54° | 72° | — | — |
| 2001 | 90° | 53° | 71° | — | — |
| 2000 | 81° | 55° | 68° | — | — |
| 1999 | 84° | 58° | 71° | 0.56" | — |
| 1998 | 83° | 60° | 71° | — | — |
| 1997 | 85° | 59° | 72° | — | — |
| 1996 | 93° | 52° | 72° | — | — |
| 1995 | 99° | 60° | 79° | — | — |
| 1994 | 70° | 50° | 60° | — | — |
| 1993 | 87° | 48° | 68° | — | — |
| 1992 | 77° | 53° | 65° | — | — |
| 1991 | 89° | 50° | 70° | — | — |
| 1990 | 89° | 59° | 74° | 0.28" | — |
| 1989 | 79° | 59° | 69° | — | — |
| 1988 | 82° | 62° | 72° | — | — |
| 1987 | 85° | 51° | 68° | — | — |
| 1986 | 76° | 50° | 63° | — | — |
| 1985 | 80° | 64° | 72° | 0.58" | — |
| 1984 | 79° | 58° | 68° | 0.08" | — |
| 1983 | 96° | 55° | 76° | — | — |
| 1982 | 89° | 55° | 72° | — | — |
| 1981 | 85° | 48° | 66° | — | — |
| 1980 | 79° | 45° | 62° | — | — |
| 1979 | 85° | 48° | 66° | — | — |
| 1978 | 92° | 54° | 73° | — | — |
| 1977 | 89° | 53° | 71° | — | — |
| 1976 | 79° | 45° | 62° | — | — |
| 1975 | 90° | 58° | 74° | — | — |
| 1974 | 70° | 50° | 60° | — | — |
| 1973 | 80° | 50° | 65° | — | — |
| 1972coldest | 70° | 44° | 57° | 2.46" | — |
| 1971 | 90° | 52° | 71° | — | — |
54 years of data from GREELEY UNC