Weather on June 9
Boulder, CO
55 Years of Data
Avg High
79°F
Avg Low
50°F
Warmest
2012
78°F avg
Coldest
1979
45°F avg
About This Date
June 9th in Boulder, CO typically brings pleasant summer weather, with average highs around 79°F and lows near 50°F — a 29°F daily swing. Over 55 years of records, the warmest June 9th was in 2012 (78°F average), while the coldest was 1979 (45°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 44% of June 9th dates historically, with the wettest June 9th recording 7.95" of rain. 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 June 9th in Boulder, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 52° | 66° | — | — |
| 2024 | 77° | 52° | 64° | — | — |
| 2023 | 79° | 55° | 67° | — | — |
| 2022 | 90° | 54° | 72° | — | — |
| 2021 | 90° | 59° | 74° | — | — |
| 2020 | 66° | 43° | 54° | — | — |
| 2019 | 63° | 45° | 54° | — | — |
| 2018 | 91° | 55° | 73° | — | — |
| 2017 | 93° | 50° | 72° | — | — |
| 2016 | 89° | 55° | 72° | — | — |
| 2015 | 85° | 54° | 69° | — | — |
| 2014 | 69° | 37° | 53° | 0.25" | — |
| 2013 | 88° | 47° | 67° | — | — |
| 2012warmest | 95° | 60° | 78° | — | — |
| 2011 | 72° | 49° | 60° | 0.43" | — |
| 2010 | 82° | 51° | 67° | — | — |
| 2009 | 72° | 47° | 59° | 0.53" | — |
| 2008 | 78° | 43° | 60° | — | — |
| 2007 | 81° | 44° | 62° | — | — |
| 2006 | 87° | 63° | 75° | 0.1" | — |
| 2005 | 78° | 49° | 63° | 0.08" | — |
| 2004 | 73° | 53° | 63° | 0.41" | — |
| 2003 | 84° | 50° | 67° | 0.03" | — |
| 2002 | 91° | 58° | 74° | — | — |
| 2001 | 88° | 54° | 71° | — | — |
| 2000 | 86° | 62° | 74° | — | — |
| 1999 | 88° | 52° | 70° | 0.08" | — |
| 1998 | 67° | 44° | 55° | 0.58" | — |
| 1997 | 61° | 49° | 55° | 1.68" | — |
| 1996 | 85° | 58° | 71° | 0.03" | — |
| 1995 | 68° | 40° | 54° | 2.69" | — |
| 1994 | 77° | 44° | 61° | — | — |
| 1993 | 69° | 42° | 56° | 0.03" | — |
| 1992 | 67° | 45° | 56° | 0.03" | — |
| 1991 | 79° | 54° | 66° | — | — |
| 1990 | 83° | 52° | 67° | — | — |
| 1989 | 69° | 48° | 59° | 0.05" | — |
| 1988 | 90° | 61° | 75° | 0.23" | — |
| 1987 | 72° | 55° | 63° | 7.95" | — |
| 1986 | 73° | 52° | 62° | 0.33" | — |
| 1985 | 74° | 55° | 64° | 0.03" | — |
| 1984 | 69° | 40° | 54° | 0.46" | — |
| 1983 | 80° | 46° | 63° | 0.1" | — |
| 1982 | 76° | 40° | 58° | — | — |
| 1981 | 92° | 55° | 73° | — | — |
| 1980 | 81° | 48° | 64° | — | — |
| 1979coldest | 49° | 42° | 45° | 2.06" | — |
| 1978 | 91° | 47° | 69° | — | — |
| 1977 | 85° | 56° | 70° | — | — |
| 1976 | 84° | 54° | 69° | — | — |
| 1975 | 63° | 44° | 53° | 0.3" | — |
| 1974 | 68° | 38° | 53° | 0.38" | — |
| 1973 | 92° | 55° | 73° | — | — |
| 1972 | 82° | 62° | 72° | — | — |
| 1971 | 74° | 47° | 60° | — | — |
55 years of data from BOULDER MUNI AP