Weather on July 4
Boulder, CO
55 Years of Data
Avg High
87°F
Avg Low
57°F
Warmest
1999
83°F avg
Coldest
1972
50°F avg
About This Date
July 4th in Boulder, CO typically brings warm summer weather, with average highs around 87°F and lows near 57°F — a 30°F daily swing. Over 55 years of records, the warmest July 4th was in 1999 (83°F average), while the coldest was 1972 (50°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 24% of July 4th dates historically, with the wettest July 4th recording 1.32" 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 July 4th in Boulder, CO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 68° | 78° | — | — |
| 2024 | 82° | 52° | 67° | — | — |
| 2023 | 81° | 54° | 67° | — | — |
| 2022 | 91° | 61° | 76° | — | — |
| 2021 | 86° | 61° | 73° | — | — |
| 2020 | 88° | 59° | 73° | — | — |
| 2019 | 81° | 61° | 71° | — | — |
| 2018 | 88° | 61° | 74° | — | — |
| 2017 | 92° | 55° | 73° | — | — |
| 2016 | 91° | 61° | 76° | 0.03" | — |
| 2015 | 87° | 57° | 72° | 0.46" | — |
| 2014 | 90° | 58° | 74° | 0.03" | — |
| 2013 | 90° | 60° | 75° | 0.15" | — |
| 2012 | 96° | 61° | 78° | — | — |
| 2011 | 98° | 56° | 77° | — | — |
| 2010 | 82° | 59° | 71° | — | — |
| 2009 | 76° | 57° | 66° | 0.13" | — |
| 2008 | 94° | 54° | 74° | — | — |
| 2007 | 87° | 58° | 72° | — | — |
| 2006 | 86° | 54° | 70° | — | — |
| 2005 | 83° | 51° | 67° | — | — |
| 2004 | 83° | 52° | 67° | — | — |
| 2003 | 93° | 62° | 78° | — | — |
| 2002 | 91° | 58° | 74° | — | — |
| 2001 | 90° | 58° | 74° | — | — |
| 2000 | 93° | 59° | 76° | — | — |
| 1999warmest | 96° | 69° | 83° | — | — |
| 1998 | 78° | 55° | 67° | 0.03" | — |
| 1997 | 80° | 48° | 64° | — | — |
| 1996 | 94° | 61° | 77° | — | — |
| 1995 | 70° | 52° | 61° | — | — |
| 1994 | 92° | 60° | 76° | — | — |
| 1993 | 69° | 55° | 62° | — | — |
| 1992 | 92° | 53° | 72° | — | — |
| 1991 | 91° | 54° | 72° | 0.03" | — |
| 1990 | 83° | 58° | 70° | 0.05" | — |
| 1989 | 98° | 55° | 77° | — | — |
| 1988 | 89° | 63° | 76° | 0.23" | — |
| 1987 | 84° | 53° | 69° | — | — |
| 1986 | 93° | 70° | 81° | 0.53" | — |
| 1985 | 90° | 65° | 77° | 0.03" | — |
| 1984 | 85° | 56° | 70° | — | — |
| 1983 | 78° | 47° | 62° | — | — |
| 1982 | 90° | 54° | 72° | — | — |
| 1981 | 84° | 55° | 70° | — | — |
| 1980 | 88° | 57° | 72° | — | — |
| 1979 | 84° | 61° | 72° | — | — |
| 1978 | 93° | 56° | 74° | — | — |
| 1977 | 94° | 63° | 78° | 0.03" | — |
| 1976 | 90° | 56° | 73° | — | — |
| 1975 | 90° | 57° | 73° | — | — |
| 1974 | 89° | 49° | 69° | — | — |
| 1973 | 95° | 60° | 78° | — | — |
| 1972coldest | 56° | 45° | 50° | 1.32" | — |
| 1971 | 89° | 58° | 73° | — | — |
55 years of data from BOULDER MUNI AP