Weather on July 21
Denver, CO
55 Years of Data
Avg High
90°F
Avg Low
58°F
Warmest
2005
87°F avg
Coldest
1990
60°F avg
About This Date
July 21st in Denver, CO typically brings hot summer weather, with average highs around 90°F and lows near 58°F — a 32°F daily swing. Over 55 years of records, the warmest July 21st was in 2005 (87°F average), while the coldest was 1990 (60°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 29% of July 21st dates historically, with the wettest July 21st recording 5.72" 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 21st in Denver, CO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 60° | 78° | — | — |
| 2024 | 90° | 56° | 73° | 1.04" | — |
| 2023 | 87° | 53° | 70° | 1.4" | — |
| 2022 | 98° | 59° | 79° | 0.33" | — |
| 2021 | 98° | 64° | 81° | — | — |
| 2020 | 95° | 59° | 77° | — | — |
| 2019 | 91° | 58° | 74° | 0.43" | — |
| 2018 | 98° | 63° | 80° | — | — |
| 2017 | 100° | 63° | 81° | 0.03" | — |
| 2016 | 96° | 65° | 80° | — | — |
| 2015 | 84° | 60° | 72° | — | — |
| 2014 | 97° | 58° | 77° | — | — |
| 2013 | 92° | 56° | 74° | 0.05" | — |
| 2012 | 97° | 61° | 79° | — | — |
| 2011 | 93° | 61° | 77° | — | — |
| 2010 | 93° | 60° | 77° | 0.08" | — |
| 2009 | 91° | 57° | 74° | 2.9" | — |
| 2008 | 100° | 63° | 81° | — | — |
| 2007 | 94° | 63° | 78° | — | — |
| 2006 | 91° | 64° | 78° | 0.08" | — |
| 2005warmest | 104° | 69° | 87° | — | — |
| 2004 | 92° | 60° | 76° | — | — |
| 2003 | 98° | 63° | 80° | — | — |
| 2002 | 93° | 66° | 80° | — | — |
| 2001 | 94° | 61° | 77° | — | — |
| 2000 | 90° | 56° | 73° | — | — |
| 1999 | 96° | 57° | 77° | — | — |
| 1998 | 95° | 65° | 80° | — | — |
| 1997 | 93° | 57° | 75° | — | — |
| 1996 | 89° | 57° | 73° | — | — |
| 1995 | 87° | 54° | 70° | — | — |
| 1994 | 84° | 55° | 70° | — | — |
| 1993 | 89° | 54° | 71° | — | — |
| 1992 | 89° | 52° | 70° | — | — |
| 1991 | 86° | 59° | 73° | — | — |
| 1990coldest | 69° | 52° | 60° | 0.25" | — |
| 1989 | 92° | 58° | 75° | — | — |
| 1988 | 93° | 46° | 70° | — | — |
| 1987 | 93° | 59° | 76° | — | — |
| 1986 | 81° | 50° | 65° | — | — |
| 1985 | 78° | 58° | 68° | — | — |
| 1984 | 95° | 57° | 76° | 0.1" | — |
| 1983 | 87° | 59° | 73° | — | — |
| 1982 | 96° | 58° | 77° | — | — |
| 1981 | 100° | 56° | 78° | — | — |
| 1980 | 84° | 55° | 70° | — | — |
| 1979 | 92° | 53° | 72° | — | — |
| 1978 | 77° | 60° | 69° | 0.13" | — |
| 1977 | 67° | 59° | 63° | 5.72" | — |
| 1976 | 80° | 57° | 69° | 0.51" | — |
| 1975 | 90° | 53° | 71° | 0.15" | — |
| 1974 | 86° | 62° | 74° | — | — |
| 1973 | 78° | 53° | 66° | 0.25" | — |
| 1972 | 93° | 53° | 73° | — | — |
| 1971 | 84° | 59° | 72° | — | — |
55 years of data from NORTHGLENN