Weather on April 27
Boulder, CO
55 Years of Data
Avg High
65°F
Avg Low
37°F
Warmest
1981
71°F avg
Coldest
1994
27°F avg
About This Date
April 27th in Boulder, CO typically brings mild spring weather, with average highs around 65°F and lows near 37°F — a 28°F daily swing. Over 55 years of records, the warmest April 27th was in 1981 (71°F average), while the coldest was 1994 (27°F) — a 44°F range across recorded history. Precipitation has occurred on 27% of recorded April 27th dates, with snow falling 5% of the time (heaviest snowfall: 3.7"). The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for April 27th in Boulder, CO? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 43° | 61° | — | — |
| 2024 | 45° | 36° | 40° | — | — |
| 2023 | 68° | 39° | 54° | — | — |
| 2022 | 73° | 45° | 59° | — | — |
| 2021 | 59° | 37° | 48° | 1.47" | — |
| 2020 | 79° | 45° | 62° | — | — |
| 2019 | 68° | 43° | 55° | — | — |
| 2018 | 72° | 36° | 54° | — | — |
| 2017 | 53° | 34° | 43° | 0.46" | — |
| 2016 | 55° | 30° | 43° | 0.05" | 0.3" |
| 2015 | 47° | 37° | 42° | 1.24" | — |
| 2014 | 70° | 45° | 57° | — | — |
| 2013 | 74° | 40° | 57° | — | — |
| 2012 | 69° | 50° | 60° | 0.1" | — |
| 2011 | 57° | 31° | 44° | — | — |
| 2010 | 69° | 31° | 50° | — | — |
| 2009 | 45° | 32° | 38° | 1.42" | 3.7" |
| 2008 | 64° | 23° | 44° | — | — |
| 2007 | 64° | 39° | 52° | — | — |
| 2006 | 76° | 41° | 58° | — | — |
| 2005 | 58° | 39° | 48° | 0.23" | — |
| 2004 | 77° | 42° | 60° | — | — |
| 2003 | 71° | 39° | 55° | — | — |
| 2002 | 68° | 40° | 54° | 0.08" | — |
| 2001 | 77° | 44° | 61° | — | — |
| 2000 | 72° | 41° | 56° | — | — |
| 1999 | 71° | 39° | 55° | — | — |
| 1998 | 59° | 33° | 46° | — | — |
| 1997 | 64° | 28° | 46° | — | — |
| 1996 | 68° | 37° | 53° | — | — |
| 1995 | 59° | 25° | 42° | — | — |
| 1994coldest | 33° | 22° | 27° | 0.66" | 3" |
| 1993 | 72° | 45° | 58° | — | — |
| 1992 | 82° | 43° | 62° | — | — |
| 1991 | 52° | 33° | 42° | — | — |
| 1990 | 56° | 32° | 44° | — | — |
| 1989 | 73° | 39° | 56° | 0.43" | — |
| 1988 | 69° | 29° | 49° | — | — |
| 1987 | 67° | 49° | 58° | 0.03" | — |
| 1986 | 61° | 36° | 48° | 0.03" | — |
| 1985 | 65° | 30° | 47° | — | — |
| 1984 | 52° | 23° | 37° | — | — |
| 1983 | 65° | 39° | 52° | — | — |
| 1982 | 52° | 43° | 47° | 0.18" | — |
| 1981warmest | 83° | 59° | 71° | — | — |
| 1980 | 65° | 36° | 50° | — | — |
| 1979 | 63° | 36° | 49° | — | — |
| 1978 | 76° | 44° | 60° | — | — |
| 1977 | 73° | 46° | 60° | — | — |
| 1976 | 43° | 32° | 37° | 0.79" | — |
| 1975 | 76° | 36° | 56° | 0.33" | — |
| 1974 | 83° | 48° | 65° | — | — |
| 1973 | 66° | 30° | 48° | — | — |
| 1972 | 46° | 36° | 41° | — | — |
| 1971 | 56° | 30° | 43° | — | — |
55 years of data from BOULDER MUNI AP