Weather on May 17
Fort Collins, CO
55 Years of Data
Avg High
72°F
Avg Low
45°F
Warmest
1996
71°F avg
Coldest
1983
40°F avg
About This Date
May 17th in Fort Collins, CO typically brings pleasant spring weather, with average highs around 72°F and lows near 45°F — a 27°F daily swing. Over 55 years of records, the warmest May 17th was in 1996 (71°F average), while the coldest was 1983 (40°F) — a 31°F range across recorded history. Precipitation has occurred on 36% of recorded May 17th dates, with snow falling 2% of the time (heaviest snowfall: 2.5"). The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for May 17th in Fort Collins, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 47° | 58° | — | — |
| 2024 | 84° | 47° | 65° | — | — |
| 2023 | 79° | 47° | 63° | — | — |
| 2022 | 83° | 50° | 66° | 0.13" | — |
| 2021 | 65° | 49° | 57° | 2.26" | — |
| 2020 | 71° | 40° | 55° | — | — |
| 2019 | 69° | 49° | 59° | 0.25" | — |
| 2018 | 83° | 49° | 66° | — | — |
| 2017 | 72° | 41° | 56° | 0.1" | — |
| 2016 | 49° | 37° | 43° | 0.43" | — |
| 2015 | 70° | 43° | 56° | — | — |
| 2014 | 66° | 45° | 55° | 0.15" | — |
| 2013 | 85° | 52° | 68° | — | — |
| 2012 | 80° | 49° | 64° | — | — |
| 2011 | 60° | 42° | 51° | 0.25" | — |
| 2010 | 74° | 40° | 57° | — | — |
| 2009 | 81° | 41° | 61° | — | — |
| 2008 | 80° | 45° | 62° | — | — |
| 2007 | 72° | 47° | 59° | — | — |
| 2006 | 83° | 47° | 65° | — | — |
| 2005 | 71° | 51° | 61° | — | — |
| 2004 | 70° | 48° | 59° | — | — |
| 2003 | 85° | 50° | 67° | — | — |
| 2002 | 59° | 44° | 52° | 0.33" | — |
| 2001 | 67° | 49° | 58° | 0.74" | — |
| 2000 | 74° | 43° | 58° | 2.08" | — |
| 1999 | 61° | 35° | 48° | 0.05" | — |
| 1998 | 83° | 44° | 63° | — | — |
| 1997 | 85° | 49° | 67° | — | — |
| 1996warmest | 82° | 61° | 71° | — | — |
| 1995 | 58° | 43° | 50° | 3.86" | — |
| 1994 | 85° | 50° | 67° | — | — |
| 1993 | 60° | 52° | 56° | 0.33" | — |
| 1992 | 79° | 44° | 61° | — | — |
| 1991 | 65° | 40° | 52° | — | — |
| 1990 | 70° | 34° | 52° | — | — |
| 1989 | 72° | 41° | 56° | — | — |
| 1988 | 85° | 52° | 68° | — | — |
| 1987 | 72° | 54° | 63° | 0.66" | — |
| 1986 | 58° | 38° | 48° | — | — |
| 1985 | 70° | 49° | 59° | 0.18" | — |
| 1984 | 70° | 45° | 57° | — | — |
| 1983coldest | 48° | 32° | 40° | 3.94" | 2.5" |
| 1982 | 67° | 42° | 54° | 0.05" | — |
| 1981 | 48° | 42° | 45° | 3.35" | — |
| 1980 | 46° | 38° | 42° | 1.19" | — |
| 1979 | 78° | 50° | 64° | — | — |
| 1978 | 75° | 42° | 59° | 1.73" | — |
| 1977 | 77° | 41° | 59° | — | — |
| 1976 | 71° | 34° | 52° | — | — |
| 1975 | 77° | 48° | 63° | — | — |
| 1974 | 69° | 52° | 60° | — | — |
| 1973 | 81° | 45° | 63° | — | — |
| 1972 | 81° | 43° | 62° | — | — |
| 1971 | 65° | 40° | 52° | — | — |
55 years of data from FT COLLINS