Weather on June 21
Denver, CO
55 Years of Data
Avg High
84°F
Avg Low
55°F
Warmest
2017
82°F avg
Coldest
2011
56°F avg
About This Date
June 21st in Denver, CO typically brings warm summer weather, with average highs around 84°F and lows near 55°F — a 29°F daily swing. Over 55 years of records, the warmest June 21st was in 2017 (82°F average), while the coldest was 2011 (56°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 27% of June 21st dates historically, with the wettest June 21st recording 0.91" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for June 21st in Denver, CO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 98° | 60° | 79° | — | — |
| 2024 | 91° | 61° | 76° | 0.18" | — |
| 2023 | 84° | 52° | 68° | — | — |
| 2022 | 89° | 56° | 72° | — | — |
| 2021 | 74° | 52° | 63° | 0.38" | — |
| 2020 | 87° | 48° | 68° | — | — |
| 2019 | 86° | 53° | 70° | — | — |
| 2018 | 79° | 53° | 66° | — | — |
| 2017warmest | 102° | 62° | 82° | — | — |
| 2016 | 75° | 59° | 67° | — | — |
| 2015 | 84° | 60° | 72° | — | — |
| 2014 | 85° | 52° | 68° | — | — |
| 2013 | 91° | 56° | 73° | — | — |
| 2012 | 75° | 54° | 64° | — | — |
| 2011coldest | 66° | 46° | 56° | 0.86" | — |
| 2010 | 81° | 61° | 71° | — | — |
| 2009 | 74° | 50° | 62° | 0.03" | — |
| 2008 | 83° | 57° | 70° | — | — |
| 2007 | 93° | 63° | 78° | — | — |
| 2006 | 90° | 58° | 74° | — | — |
| 2005 | 88° | 64° | 76° | 0.15" | — |
| 2004 | 76° | 52° | 64° | 0.91" | — |
| 2003 | 76° | 52° | 64° | 0.48" | — |
| 2002 | 85° | 60° | 72° | — | — |
| 2001 | 79° | 55° | 67° | — | — |
| 2000 | 83° | 47° | 65° | — | — |
| 1999 | 89° | 55° | 72° | — | — |
| 1998 | 79° | 53° | 66° | — | — |
| 1997 | 86° | 61° | 73° | — | — |
| 1996 | 82° | 58° | 70° | 0.89" | — |
| 1995 | 87° | 55° | 71° | — | — |
| 1994 | 82° | 60° | 71° | 0.1" | — |
| 1993 | 89° | 57° | 73° | — | — |
| 1992 | 80° | 57° | 69° | — | — |
| 1991 | 79° | 56° | 67° | 0.25" | — |
| 1990 | 77° | 52° | 64° | — | — |
| 1989 | 70° | 46° | 58° | 0.2" | — |
| 1988 | 94° | 65° | 79° | 0.03" | — |
| 1987 | 89° | 57° | 73° | — | — |
| 1986 | 91° | 53° | 72° | — | — |
| 1985 | 81° | 56° | 68° | — | — |
| 1984 | 89° | 52° | 70° | 0.03" | — |
| 1983 | 93° | 54° | 73° | — | — |
| 1982 | 81° | 53° | 67° | — | — |
| 1981 | 83° | 59° | 71° | — | — |
| 1980 | 87° | 62° | 75° | 0.03" | — |
| 1979 | 87° | 51° | 69° | — | — |
| 1978 | 92° | 52° | 72° | — | — |
| 1977 | 81° | 57° | 69° | — | — |
| 1976 | 93° | 56° | 74° | — | — |
| 1975 | 76° | 50° | 63° | 0.03" | — |
| 1974 | 93° | 58° | 75° | — | — |
| 1973 | 82° | 48° | 65° | — | — |
| 1972 | 86° | 50° | 68° | — | — |
| 1971 | 93° | 59° | 76° | — | — |
55 years of data from DENVER-STAPLETON