Weather on August 11
Fort Collins, CO
55 Years of Data
Avg High
86°F
Avg Low
57°F
Warmest
1975
80°F avg
Coldest
1977
59°F avg
About This Date
August 11th in Fort Collins, CO typically brings warm summer weather, with average highs around 86°F and lows near 57°F — a 29°F daily swing. Over 55 years of records, the warmest August 11th was in 1975 (80°F average), while the coldest was 1977 (59°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 11th dates historically, with the wettest August 11th recording 2.24" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for August 11th in Fort Collins, CO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 52° | 68° | 0.05" | — |
| 2024 | 90° | 57° | 73° | — | — |
| 2023 | 92° | 59° | 75° | — | — |
| 2022 | 94° | 60° | 77° | — | — |
| 2021 | 90° | 59° | 74° | — | — |
| 2020 | 94° | 61° | 77° | — | — |
| 2019 | 82° | 60° | 71° | — | — |
| 2018 | 90° | 55° | 72° | — | — |
| 2017 | 75° | 57° | 66° | — | — |
| 2016 | 87° | 60° | 74° | — | — |
| 2015 | 83° | 59° | 71° | — | — |
| 2014 | 85° | 53° | 69° | — | — |
| 2013 | 81° | 61° | 71° | 0.05" | — |
| 2012 | 91° | 66° | 79° | 0.03" | — |
| 2011 | 93° | 54° | 73° | — | — |
| 2010 | 94° | 57° | 75° | — | — |
| 2009 | 88° | 52° | 70° | — | — |
| 2008 | 84° | 56° | 70° | — | — |
| 2007 | 91° | 59° | 75° | — | — |
| 2006 | 94° | 58° | 76° | — | — |
| 2005 | 84° | 62° | 73° | 0.33" | — |
| 2004 | 75° | 55° | 65° | — | — |
| 2003 | 91° | 59° | 75° | — | — |
| 2002 | 96° | 55° | 76° | — | — |
| 2001 | 83° | 54° | 68° | — | — |
| 2000 | 93° | 61° | 77° | — | — |
| 1999 | 87° | 59° | 73° | — | — |
| 1998 | 83° | 58° | 70° | — | — |
| 1997 | 72° | 53° | 62° | 0.28" | — |
| 1996 | 87° | 52° | 69° | — | — |
| 1995 | 92° | 65° | 78° | 0.2" | — |
| 1994 | 82° | 63° | 72° | 2.24" | — |
| 1993 | 84° | 54° | 69° | 0.53" | — |
| 1992 | 79° | 57° | 68° | — | — |
| 1991 | 82° | 56° | 69° | — | — |
| 1990 | 79° | 57° | 68° | 1.07" | — |
| 1989 | 83° | 59° | 71° | — | — |
| 1988 | 90° | 54° | 72° | — | — |
| 1987 | 90° | 55° | 72° | — | — |
| 1986 | 89° | 53° | 71° | — | — |
| 1985 | 86° | 59° | 73° | — | — |
| 1984 | 85° | 54° | 69° | — | — |
| 1983 | 89° | 62° | 76° | — | — |
| 1982 | 79° | 58° | 68° | — | — |
| 1981 | 75° | 52° | 63° | — | — |
| 1980 | 85° | 61° | 73° | — | — |
| 1979 | 82° | 47° | 64° | — | — |
| 1978 | 92° | 54° | 73° | 0.18" | — |
| 1977coldest | 66° | 51° | 59° | 0.1" | — |
| 1976 | 78° | 54° | 66° | — | — |
| 1975warmest | 92° | 69° | 80° | — | — |
| 1974 | 83° | 42° | 62° | — | — |
| 1973 | 86° | 60° | 73° | — | — |
| 1972 | 90° | 57° | 73° | — | — |
| 1971 | 88° | 54° | 71° | — | — |
55 years of data from FT COLLINS