Weather on April 12
Boulder, CO
55 Years of Data
Avg High
61°F
Avg Low
34°F
Warmest
2025
70°F avg
Coldest
1997
17°F avg
About This Date
April 12th in Boulder, CO typically brings mild spring weather, with average highs around 61°F and lows near 34°F — a 27°F daily swing. Over 55 years of records, the warmest April 12th was in 2025 (70°F average), while the coldest was 1997 (17°F) — a 53°F range across recorded history. Precipitation has occurred on 20% of recorded April 12th dates, with snow falling 13% of the time (heaviest snowfall: 7.5"). The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for April 12th in Boulder, CO? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 86° | 54° | 70° | — | — |
| 2024 | 77° | 37° | 57° | — | — |
| 2023 | 82° | 50° | 66° | — | — |
| 2022 | 55° | 32° | 44° | — | — |
| 2021 | 41° | 30° | 36° | — | — |
| 2020 | 34° | 21° | 28° | — | — |
| 2019 | 41° | 27° | 34° | — | — |
| 2018 | 77° | 45° | 61° | — | — |
| 2017 | 73° | 36° | 54° | — | — |
| 2016 | 69° | 36° | 52° | — | — |
| 2015 | 69° | 47° | 58° | — | — |
| 2014 | 73° | 46° | 60° | — | — |
| 2013 | 59° | 33° | 46° | — | — |
| 2012 | 66° | 43° | 54° | 0.53" | — |
| 2011 | 65° | 33° | 49° | — | — |
| 2010 | 74° | 33° | 53° | — | — |
| 2009 | 54° | 37° | 45° | 0.2" | — |
| 2008 | 53° | 27° | 40° | — | — |
| 2007 | 45° | 25° | 35° | — | — |
| 2006 | 75° | 38° | 56° | — | — |
| 2005 | 58° | 35° | 46° | — | — |
| 2004 | 48° | 26° | 37° | 0.46" | 1.9" |
| 2003 | 76° | 43° | 59° | — | — |
| 2002 | 71° | 36° | 53° | — | — |
| 2001 | 46° | 30° | 38° | — | — |
| 2000 | 72° | — | — | — | — |
| 1999 | 68° | 31° | 49° | — | — |
| 1998 | 77° | 47° | 62° | — | — |
| 1997coldest | 33° | 2° | 17° | 0.15" | 1.7" |
| 1996 | 62° | 33° | 48° | — | — |
| 1995 | 63° | 22° | 42° | — | — |
| 1994 | 66° | 23° | 45° | — | — |
| 1993 | 56° | 33° | 44° | 0.61" | 0.3" |
| 1992 | 70° | 40° | 55° | — | — |
| 1991 | 36° | 29° | 32° | 1.55" | 7.5" |
| 1990 | 65° | 33° | 49° | — | — |
| 1989 | 56° | 26° | 41° | — | — |
| 1988 | 76° | 40° | 58° | — | — |
| 1987 | 60° | 32° | 46° | 2.9" | 5.2" |
| 1986 | 63° | 38° | 50° | 0.46" | — |
| 1985 | 72° | 47° | 59° | — | — |
| 1984 | 58° | 27° | 42° | — | — |
| 1983 | 35° | 31° | 33° | 0.97" | 2" |
| 1982 | 75° | 45° | 60° | — | — |
| 1981 | 74° | 40° | 57° | — | — |
| 1980 | 43° | 20° | 31° | — | — |
| 1979 | 47° | 25° | 36° | — | — |
| 1978 | 68° | 34° | 51° | — | — |
| 1977 | 45° | 37° | 41° | 0.33" | — |
| 1976 | 74° | 36° | 55° | — | — |
| 1975 | 42° | 27° | 34° | 0.08" | 0.6" |
| 1974 | 56° | 37° | 46° | — | — |
| 1973 | 59° | 32° | 46° | — | — |
| 1972 | 70° | 47° | 58° | — | — |
| 1971 | 69° | 34° | 51° | — | — |
55 years of data from BOULDER MUNI AP