Weather on March 15
Fort Collins, CO
55 Years of Data
About This Date
March 15th in Fort Collins, CO typically brings cool spring weather, with average highs around 55°F and lows near 29°F — a 26°F daily swing. Over 56 years of records, the warmest March 15th was in 2003 (59°F average), while the coldest was 2002 (22°F) — a 37°F range across recorded history. Precipitation has occurred on 18% of recorded March 15th dates, with snow falling 16% of the time (heaviest snowfall: 9"). 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 March 15th in Fort Collins, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 57° | 25° | 41° | 0.03" | 0.1" |
| 2025 | 48° | 29° | 38° | — | — |
| 2024 | 40° | 31° | 35° | 1.27" | 3.5" |
| 2023 | 72° | 34° | 53° | — | — |
| 2022 | 68° | 26° | 47° | — | — |
| 2021 | 39° | 15° | 27° | 0.03" | 0.1" |
| 2020 | 53° | 30° | 42° | — | — |
| 2019 | 45° | 15° | 30° | — | — |
| 2018 | 67° | 33° | 50° | 0.08" | — |
| 2017 | 78° | 31° | 54° | — | — |
| 2016 | 47° | 34° | 40° | — | — |
| 2015 | 79° | 37° | 58° | — | — |
| 2014 | 56° | 38° | 47° | — | — |
| 2013 | 76° | 40° | 58° | — | — |
| 2012 | 71° | 45° | 58° | — | — |
| 2011 | 58° | 33° | 45° | — | — |
| 2010 | 56° | 31° | 43° | — | — |
| 2009 | 63° | 23° | 43° | — | — |
| 2008 | 47° | 27° | 37° | — | — |
| 2007 | 55° | 34° | 44° | — | — |
| 2006 | 58° | 23° | 40° | — | — |
| 2005 | 43° | 12° | 27° | — | — |
| 2004 | 56° | 37° | 46° | — | — |
| 2003warmest | 70° | 49° | 59° | — | — |
| 2002coldest | 33° | 10° | 22° | 0.05" | 0.2" |
| 2001 | 47° | 28° | 37° | — | — |
| 2000 | 58° | 29° | 43° | 2.03" | 9" |
| 1999 | 60° | 35° | 48° | — | — |
| 1998 | 61° | 28° | 44° | — | — |
| 1997 | 34° | 13° | 23° | 0.3" | 2.8" |
| 1996 | 53° | 27° | 40° | — | — |
| 1995 | 69° | 29° | 49° | — | — |
| 1994 | 68° | 27° | 47° | — | — |
| 1993 | 60° | 36° | 48° | — | — |
| 1992 | 62° | 29° | 45° | — | — |
| 1991 | 40° | 27° | 33° | — | — |
| 1990 | 46° | 23° | 35° | — | — |
| 1989 | 54° | 26° | 40° | — | — |
| 1988 | 37° | 21° | 29° | — | — |
| 1987 | 48° | 32° | 40° | — | — |
| 1986 | 49° | 32° | 40° | 1.57" | 1.7" |
| 1985 | 63° | 23° | 43° | — | — |
| 1984 | 56° | 35° | 45° | — | — |
| 1983 | 43° | 31° | 37° | 1.63" | 4" |
| 1982 | 61° | 32° | 46° | — | — |
| 1981 | 60° | 28° | 44° | — | — |
| 1980 | 67° | 31° | 49° | — | — |
| 1979 | 56° | 26° | 41° | — | — |
| 1978 | 42° | 25° | 33° | — | — |
| 1977 | 45° | 16° | 30° | 0.25" | 2" |
| 1976 | 42° | 29° | 35° | — | — |
| 1975 | 51° | 35° | 43° | — | — |
| 1974 | 49° | 31° | 40° | — | — |
| 1973 | 43° | 23° | 33° | — | — |
| 1972 | 63° | 30° | 46° | — | — |
| 1971 | 49° | 26° | 37° | — | — |
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.