Weather on September 4
Fort Collins, CO
55 Years of Data
Avg High
83°F
Avg Low
52°F
Warmest
2013
76°F avg
Coldest
1971
56°F avg
About This Date
September 4th in Fort Collins, CO typically brings warm fall weather, with average highs around 83°F and lows near 52°F — a 31°F daily swing. Over 55 years of records, the warmest September 4th was in 2013 (76°F average), while the coldest was 1971 (56°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 4th dates historically, with the wettest September 4th recording 0.58" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 4th in Fort Collins, CO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 53° | 70° | 0.08" | — |
| 2024 | 84° | 60° | 72° | 0.38" | — |
| 2023 | 83° | 55° | 69° | 0.28" | — |
| 2022 | 92° | 55° | 73° | — | — |
| 2021 | 82° | 52° | 67° | — | — |
| 2020 | 90° | 49° | 69° | — | — |
| 2019 | 86° | 57° | 72° | 0.03" | — |
| 2018 | 84° | 50° | 67° | — | — |
| 2017 | 88° | 53° | 70° | — | — |
| 2016 | 83° | 53° | 68° | 0.05" | — |
| 2015 | 86° | 50° | 68° | — | — |
| 2014 | 81° | 57° | 69° | — | — |
| 2013warmest | 92° | 61° | 76° | — | — |
| 2012 | 92° | 51° | 71° | — | — |
| 2011 | 74° | 43° | 58° | — | — |
| 2010 | 91° | 47° | 69° | — | — |
| 2009 | 81° | 51° | 66° | — | — |
| 2008 | 71° | 44° | 58° | — | — |
| 2007 | 89° | 56° | 72° | — | — |
| 2006 | 70° | 43° | 56° | — | — |
| 2005 | 87° | 59° | 73° | — | — |
| 2004 | 76° | 59° | 67° | 0.05" | — |
| 2003 | 81° | 50° | 65° | — | — |
| 2002 | 89° | 56° | 72° | — | — |
| 2001 | 89° | 53° | 71° | — | — |
| 2000 | 88° | 52° | 70° | — | — |
| 1999 | 68° | 54° | 61° | 0.08" | — |
| 1998 | 92° | 53° | 72° | — | — |
| 1997 | 85° | 58° | 71° | 0.03" | — |
| 1996 | 89° | 50° | 70° | — | — |
| 1995 | 92° | 56° | 74° | — | — |
| 1994 | 88° | 50° | 69° | — | — |
| 1993 | 83° | 48° | 65° | — | — |
| 1992 | 83° | 56° | 69° | — | — |
| 1991 | 83° | 52° | 67° | — | — |
| 1990 | 85° | 57° | 71° | — | — |
| 1989 | 77° | 49° | 63° | — | — |
| 1988 | 80° | 45° | 62° | — | — |
| 1987 | 76° | 54° | 65° | 0.58" | — |
| 1986 | 76° | 49° | 62° | — | — |
| 1985 | 82° | 58° | 70° | 0.3" | — |
| 1984 | 80° | 49° | 64° | — | — |
| 1983 | 77° | 56° | 66° | 0.38" | — |
| 1982 | 85° | 53° | 69° | 0.23" | — |
| 1981 | 81° | 53° | 67° | — | — |
| 1980 | 79° | 48° | 63° | — | — |
| 1979 | 89° | 52° | 70° | — | — |
| 1978 | 90° | 56° | 73° | — | — |
| 1977 | 81° | 57° | 69° | 0.05" | — |
| 1976 | 88° | 47° | 67° | — | — |
| 1975 | 82° | 51° | 67° | — | — |
| 1974 | 78° | 41° | 60° | — | — |
| 1973 | 77° | 45° | 61° | — | — |
| 1972 | 77° | 48° | 63° | — | — |
| 1971coldest | 67° | 45° | 56° | — | — |
55 years of data from FT COLLINS