Weather on August 20
Denver, CO
55 Years of Data
Avg High
84°F
Avg Low
56°F
Warmest
1987
80°F avg
Coldest
2004
59°F avg
About This Date
August 20th in Denver, CO typically brings warm summer weather, with average highs around 84°F and lows near 56°F — a 28°F daily swing. Over 55 years of records, the warmest August 20th was in 1987 (80°F average), while the coldest was 2004 (59°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 20th dates historically, with the wettest August 20th recording 2.29" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for August 20th in Denver, CO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 53° | 73° | — | — |
| 2024 | 86° | 59° | 73° | 0.08" | — |
| 2023 | 93° | 59° | 76° | 0.36" | — |
| 2022 | 78° | 59° | 69° | — | — |
| 2021 | 77° | 51° | 64° | 0.43" | — |
| 2020 | 91° | 60° | 76° | — | — |
| 2019 | 93° | 61° | 77° | — | — |
| 2018 | 72° | 48° | 60° | — | — |
| 2017 | 86° | 64° | 75° | — | — |
| 2016 | 77° | 47° | 62° | 0.41" | — |
| 2015 | 69° | 49° | 59° | — | — |
| 2014 | 86° | 59° | 73° | — | — |
| 2013 | 90° | 60° | 75° | — | — |
| 2012 | 79° | 54° | 66° | — | — |
| 2011 | 94° | 58° | 76° | 0.15" | — |
| 2010 | 87° | 56° | 71° | 0.08" | — |
| 2009 | 82° | 52° | 67° | — | — |
| 2008 | 85° | 51° | 68° | — | — |
| 2007 | 91° | 61° | 76° | 0.08" | — |
| 2006 | 78° | 52° | 65° | 0.23" | — |
| 2005 | 86° | 52° | 69° | — | — |
| 2004coldest | 72° | 47° | 59° | 0.08" | — |
| 2003 | 82° | 64° | 73° | — | — |
| 2002 | 84° | 51° | 68° | — | — |
| 2001 | 95° | 64° | 80° | — | — |
| 2000 | 86° | 62° | 74° | — | — |
| 1999 | 83° | 55° | 69° | — | — |
| 1998 | 83° | 57° | 70° | 0.13" | — |
| 1997 | 77° | 50° | 64° | — | — |
| 1996 | 74° | 50° | 62° | — | — |
| 1995 | 84° | 56° | 70° | — | — |
| 1994 | 73° | 51° | 62° | 0.46" | — |
| 1993 | 81° | 58° | 69° | — | — |
| 1992 | 87° | 55° | 71° | — | — |
| 1991 | 80° | 55° | 68° | — | — |
| 1990 | 85° | 52° | 68° | 0.1" | — |
| 1989 | 85° | 52° | 68° | — | — |
| 1988 | 87° | 55° | 71° | — | — |
| 1987warmest | 90° | 70° | 80° | — | — |
| 1986 | 94° | 64° | 79° | — | — |
| 1985 | 81° | 53° | 67° | — | — |
| 1984 | 80° | 58° | 69° | — | — |
| 1983 | 85° | 57° | 71° | — | — |
| 1982 | 85° | 59° | 72° | — | — |
| 1981 | 86° | 56° | 71° | — | — |
| 1980 | 90° | 50° | 70° | — | — |
| 1979 | 75° | 47° | 61° | 2.29" | — |
| 1978 | 79° | 54° | 66° | — | — |
| 1977 | 72° | 55° | 63° | 0.25" | — |
| 1976 | 83° | 56° | 69° | — | — |
| 1975 | 85° | 61° | 73° | — | — |
| 1974 | 87° | 62° | 75° | 0.51" | — |
| 1973 | 90° | 64° | 77° | — | — |
| 1972 | 80° | 59° | 70° | — | — |
| 1971 | 82° | 54° | 68° | 0.03" | — |
55 years of data from LAKEWOOD