Weather on June 18
Fort Collins, CO
55 Years of Data
Avg High
81°F
Avg Low
53°F
Warmest
2012
77°F avg
Coldest
2004
49°F avg
About This Date
June 18th in Fort Collins, CO typically brings warm summer weather, with average highs around 81°F and lows near 53°F — a 28°F daily swing. Over 55 years of records, the warmest June 18th was in 2012 (77°F average), while the coldest was 2004 (49°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 31% of June 18th dates historically, with the wettest June 18th recording 2.16" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for June 18th in Fort Collins, CO? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 47° | 64° | — | — |
| 2024 | 84° | 58° | 71° | — | — |
| 2023 | 84° | 48° | 66° | — | — |
| 2022 | 90° | 58° | 74° | — | — |
| 2021 | 88° | 63° | 75° | — | — |
| 2020 | 78° | 54° | 66° | 0.1" | — |
| 2019 | 68° | 54° | 61° | 1.17" | — |
| 2018 | 76° | 54° | 65° | 0.46" | — |
| 2017 | 83° | 52° | 67° | — | — |
| 2016 | 92° | 59° | 75° | — | — |
| 2015 | 80° | 57° | 69° | — | — |
| 2014 | 83° | 55° | 69° | 0.28" | — |
| 2013 | 83° | 59° | 71° | — | — |
| 2012warmest | 99° | 55° | 77° | — | — |
| 2011 | 77° | 53° | 65° | — | — |
| 2010 | 81° | 50° | 65° | — | — |
| 2009 | 80° | 52° | 66° | — | — |
| 2008 | 84° | 53° | 69° | — | — |
| 2007 | 86° | 60° | 73° | — | — |
| 2006 | 88° | 59° | 73° | — | — |
| 2005 | 87° | 57° | 72° | — | — |
| 2004coldest | 54° | 44° | 49° | 2.16" | — |
| 2003 | 71° | 58° | 64° | 0.05" | — |
| 2002 | 95° | 57° | 76° | — | — |
| 2001 | 91° | 50° | 71° | — | — |
| 2000 | 80° | 43° | 61° | — | — |
| 1999 | 79° | 50° | 64° | 0.1" | — |
| 1998 | 74° | 48° | 61° | — | — |
| 1997 | 83° | 53° | 68° | — | — |
| 1996 | 90° | 55° | 72° | 0.03" | — |
| 1995 | 76° | 48° | 62° | 0.76" | — |
| 1994 | 79° | 65° | 72° | — | — |
| 1993 | 61° | 48° | 54° | 1.35" | — |
| 1992 | 83° | 49° | 66° | — | — |
| 1991 | 84° | 53° | 69° | — | — |
| 1990 | 94° | 50° | 72° | — | — |
| 1989 | 86° | 50° | 68° | — | — |
| 1988 | 86° | 55° | 71° | — | — |
| 1987 | 79° | 56° | 67° | — | — |
| 1986 | 86° | 53° | 70° | — | — |
| 1985 | 74° | 52° | 63° | — | — |
| 1984 | 76° | 50° | 63° | 0.03" | — |
| 1983 | 95° | 49° | 72° | — | — |
| 1982 | 65° | 50° | 57° | 1.4" | — |
| 1981 | 74° | 46° | 60° | — | — |
| 1980 | 89° | 55° | 72° | — | — |
| 1979 | 74° | 54° | 64° | 1.27" | — |
| 1978 | 84° | 48° | 66° | 0.03" | — |
| 1977 | 76° | 56° | 66° | 0.15" | — |
| 1976 | 55° | 45° | 50° | 1.35" | — |
| 1975 | 68° | 51° | 60° | 1.5" | — |
| 1974 | 89° | 53° | 71° | — | — |
| 1973 | 74° | 48° | 61° | — | — |
| 1972 | 81° | 54° | 67° | — | — |
| 1971 | 85° | 54° | 69° | — | — |
55 years of data from FT COLLINS