Weather on October 27
Boulder, CO
55 Years of Data
About This Date
October 27th in Boulder, CO typically brings mild fall weather, with average highs around 61°F and lows near 35°F — a 26°F daily swing. Over 55 years of records, the warmest October 27th was in 2016 (62°F average), while the coldest was 2019 (26°F) — a 36°F range across recorded history. Precipitation has occurred on 15% of recorded October 27th dates, with snow falling 4% of the time (heaviest snowfall: 2"). The last decade has been 4.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.8°F cooler on this date compared to 20-30 years ago.
Planning for October 27th in Boulder, CO? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 39° | 49° | — | — |
| 2024 | 72° | 41° | 56° | — | — |
| 2023 | 41° | 28° | 35° | — | — |
| 2022 | 46° | 36° | 41° | 0.23" | — |
| 2021 | 57° | 39° | 48° | — | — |
| 2020 | 43° | 10° | 27° | — | — |
| 2019coldest | 32° | 19° | 26° | — | — |
| 2018 | 73° | 45° | 59° | — | — |
| 2017 | 45° | 30° | 38° | — | — |
| 2016warmest | 82° | 43° | 62° | — | — |
| 2015 | 63° | 40° | 51° | — | — |
| 2014 | 68° | 43° | 55° | — | — |
| 2013 | 71° | 35° | 53° | — | — |
| 2012 | 50° | 22° | 36° | — | — |
| 2011 | 45° | 14° | 29° | — | — |
| 2010 | 51° | 32° | 42° | — | — |
| 2009 | 63° | 37° | 50° | 0.03" | — |
| 2008 | 59° | 23° | 41° | — | — |
| 2007 | 49° | 35° | 42° | 0.28" | — |
| 2006 | 55° | 30° | 43° | — | — |
| 2005 | 61° | 33° | 47° | — | — |
| 2004 | 59° | 35° | 47° | — | — |
| 2003 | 67° | 47° | 57° | — | — |
| 2002 | 52° | 40° | 46° | 0.05" | — |
| 2001 | 77° | 34° | 55° | — | — |
| 2000 | 58° | 33° | 45° | — | — |
| 1999 | 75° | 42° | 59° | — | — |
| 1998 | 57° | 41° | 49° | 0.25" | — |
| 1997 | 64° | 23° | 44° | — | — |
| 1996 | 51° | 29° | 40° | — | — |
| 1995 | 60° | 43° | 51° | — | — |
| 1994 | 73° | 43° | 58° | — | — |
| 1993 | 62° | 24° | 43° | — | — |
| 1992 | 68° | 46° | 57° | — | — |
| 1991 | 60° | 34° | 47° | — | — |
| 1990 | 65° | 40° | 52° | — | — |
| 1989 | 60° | 30° | 45° | — | — |
| 1988 | 66° | 37° | 52° | — | — |
| 1987 | 64° | 29° | 46° | — | — |
| 1986 | 61° | 39° | 50° | — | — |
| 1985 | 74° | 35° | 54° | — | — |
| 1984 | 56° | 39° | 47° | — | — |
| 1983 | 79° | 37° | 58° | — | — |
| 1982 | 62° | 35° | 49° | 0.56" | — |
| 1981 | 66° | 44° | 55° | — | — |
| 1980 | 40° | 30° | 35° | 0.46" | 2" |
| 1979 | 68° | 39° | 54° | — | — |
| 1978 | 66° | 37° | 52° | — | — |
| 1977 | 75° | 41° | 58° | — | — |
| 1976 | 42° | 31° | 36° | 0.3" | 0.3" |
| 1975 | 66° | 45° | 55° | — | — |
| 1974 | 63° | 39° | 51° | — | — |
| 1973 | 62° | 29° | 45° | — | — |
| 1972 | 66° | 37° | 52° | — | — |
| 1971 | 61° | 46° | 53° | — | — |
Boulder, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Boulder, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Boulder, 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 Boulder, CO
Boulder, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.