Weather on April 15
Boulder, CO
55 Years of Data
Avg High
64°F
Avg Low
36°F
Warmest
1985
70°F avg
Coldest
2013
34°F avg
About This Date
April 15th in Boulder, CO typically brings mild spring weather, with average highs around 64°F and lows near 36°F — a 28°F daily swing. Over 55 years of records, the warmest April 15th was in 1985 (70°F average), while the coldest was 2013 (34°F) — a 36°F range across recorded history. Precipitation has occurred on 24% of recorded April 15th dates, with snow falling 11% of the time (heaviest snowfall: 10.4"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for April 15th in Boulder, CO? Great weather for outdoor activities.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 34° | 52° | — | — |
| 2024 | 73° | 43° | 58° | — | — |
| 2023 | 50° | 32° | 41° | — | — |
| 2022 | 64° | 32° | 48° | — | — |
| 2021 | 37° | 30° | 34° | 0.48" | — |
| 2020 | 54° | 32° | 43° | — | — |
| 2019 | 73° | 43° | 58° | — | — |
| 2018 | 61° | 32° | 46° | — | — |
| 2017 | 73° | 39° | 56° | — | — |
| 2016 | 66° | 40° | 53° | 0.25" | — |
| 2015 | 72° | 39° | 55° | — | — |
| 2014 | 66° | 28° | 47° | — | — |
| 2013coldest | 43° | 25° | 34° | 1.8" | 10.4" |
| 2012 | 54° | 33° | 43° | 1.32" | 0.1" |
| 2011 | 56° | 32° | 44° | — | — |
| 2010 | 66° | 38° | 52° | — | — |
| 2009 | 70° | 38° | 54° | — | — |
| 2008 | 80° | 48° | 64° | — | — |
| 2007 | 72° | 34° | 53° | — | — |
| 2006 | 76° | 50° | 63° | — | — |
| 2005 | 65° | 30° | 47° | — | — |
| 2004 | 71° | 47° | 59° | — | — |
| 2003 | 75° | 45° | 60° | 0.15" | — |
| 2002 | 80° | 54° | 67° | — | — |
| 2001 | 60° | 31° | 45° | — | — |
| 2000 | 59° | 27° | 43° | 0.79" | 4.1" |
| 1999 | 43° | 27° | 35° | 1.22" | 9.7" |
| 1998 | 43° | 32° | 37° | 1.83" | 2.4" |
| 1997 | 63° | 36° | 49° | — | — |
| 1996 | 61° | 33° | 47° | — | — |
| 1995 | 52° | 31° | 41° | — | — |
| 1994 | 60° | 32° | 46° | — | — |
| 1993 | 48° | 30° | 39° | 0.03" | — |
| 1992 | 60° | 44° | 52° | 0.03" | — |
| 1991 | 65° | 34° | 49° | — | — |
| 1990 | 71° | 36° | 53° | — | — |
| 1989 | 76° | 34° | 55° | — | — |
| 1988 | 65° | 34° | 49° | — | — |
| 1987 | 77° | 44° | 61° | — | — |
| 1986 | 62° | 26° | 44° | — | — |
| 1985warmest | 85° | 56° | 70° | — | — |
| 1984 | 63° | 30° | 46° | — | — |
| 1983 | 51° | 20° | 35° | — | — |
| 1982 | 74° | 42° | 58° | — | — |
| 1981 | 68° | 38° | 53° | — | — |
| 1980 | 72° | 43° | 57° | — | — |
| 1979 | 76° | 40° | 58° | — | — |
| 1978 | 56° | 40° | 48° | 0.18" | — |
| 1977 | 61° | 38° | 49° | 2.77" | — |
| 1976 | 65° | 40° | 52° | — | — |
| 1975 | 68° | 36° | 52° | — | — |
| 1974 | 55° | 24° | 40° | — | — |
| 1973 | 68° | 24° | 46° | 1.02" | 4.3" |
| 1972 | 57° | 30° | 44° | — | — |
| 1971 | 74° | 47° | 60° | — | — |
55 years of data from BOULDER MUNI AP