Weather on October 31
Fort Collins, CO
55 Years of Data
About This Date
October 31st in Fort Collins, CO typically brings cool fall weather, with average highs around 55°F and lows near 30°F — a 25°F daily swing. Over 55 years of records, the warmest October 31st was in 2016 (62°F average), while the coldest was 2002 (19°F) — a 43°F range across recorded history. Precipitation has occurred on 33% of recorded October 31st dates, with snow falling 7% of the time (heaviest snowfall: 3.5"). The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for October 31st in Fort Collins, CO? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 29° | 41° | — | — |
| 2024 | 52° | 30° | 41° | 0.08" | — |
| 2023 | 49° | 20° | 34° | — | — |
| 2022 | 66° | 27° | 46° | — | — |
| 2021 | 49° | 36° | 42° | 0.13" | — |
| 2020 | 60° | 33° | 47° | — | — |
| 2019 | 47° | 5° | 26° | — | — |
| 2018 | 50° | 35° | 43° | — | — |
| 2017 | 48° | 26° | 37° | — | — |
| 2016warmest | 79° | 45° | 62° | — | — |
| 2015 | 70° | 37° | 53° | — | — |
| 2014 | 53° | 30° | 42° | — | — |
| 2013 | 58° | 27° | 42° | — | — |
| 2012 | 71° | 35° | 53° | — | — |
| 2011 | 70° | 29° | 49° | — | — |
| 2010 | 61° | 38° | 49° | 0.03" | — |
| 2009 | 57° | 26° | 42° | — | — |
| 2008 | 75° | 32° | 54° | — | — |
| 2007 | 58° | 37° | 47° | 0.05" | — |
| 2006 | 38° | 22° | 30° | — | — |
| 2005 | 53° | 28° | 41° | 0.03" | — |
| 2004 | 49° | 29° | 39° | 0.1" | — |
| 2003 | 29° | 22° | 25° | 0.15" | 0.1" |
| 2002coldest | 24° | 14° | 19° | 0.33" | 3.1" |
| 2001 | 72° | 43° | 57° | — | — |
| 2000 | 49° | 37° | 43° | 1.07" | — |
| 1999 | 70° | 29° | 49° | — | — |
| 1998 | 41° | 35° | 38° | 0.2" | — |
| 1997 | 63° | 43° | 53° | — | — |
| 1996 | 39° | 27° | 33° | 0.03" | — |
| 1995 | 45° | 33° | 39° | 0.08" | — |
| 1994 | 57° | 21° | 39° | — | — |
| 1993 | 58° | 19° | 38° | — | — |
| 1992 | 54° | 40° | 47° | 0.03" | — |
| 1991 | 40° | 4° | 22° | — | — |
| 1990 | 71° | 31° | 51° | — | — |
| 1989 | 51° | 25° | 38° | 0.51" | 3.5" |
| 1988 | 68° | 37° | 53° | — | — |
| 1987 | 65° | 46° | 55° | 0.25" | — |
| 1986 | 55° | 33° | 44° | 1.04" | 0.5" |
| 1985 | 55° | 39° | 47° | 0.15" | — |
| 1984 | 66° | 30° | 48° | — | — |
| 1983 | 70° | 35° | 52° | — | — |
| 1982 | 58° | 38° | 48° | — | — |
| 1981 | 54° | 25° | 39° | 0.05" | — |
| 1980 | 56° | 34° | 45° | — | — |
| 1979 | 38° | 25° | 31° | — | — |
| 1978 | 56° | 30° | 43° | — | — |
| 1977 | 55° | 35° | 45° | — | — |
| 1976 | 60° | 25° | 42° | — | — |
| 1975 | 56° | 43° | 49° | — | — |
| 1974 | 46° | 28° | 37° | — | — |
| 1973 | 50° | 37° | 44° | — | — |
| 1972 | 33° | 19° | 26° | — | — |
| 1971 | 48° | 19° | 34° | — | — |
Fort Collins, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Fort Collins, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Fort Collins, CO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Fort Collins, CO
Fort Collins, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.