Weather on August 17
Denver, CO
55 Years of Data
Avg High
88°F
Avg Low
55°F
Warmest
2023
81°F avg
Coldest
2008
56°F avg
About This Date
August 17th in Denver, CO typically brings warm summer weather, with average highs around 88°F and lows near 55°F — a 33°F daily swing. Over 55 years of records, the warmest August 17th was in 2023 (81°F average), while the coldest was 2008 (56°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 33% of August 17th dates historically, with the wettest August 17th recording 3.07" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for August 17th in Denver, CO? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 98° | 60° | 79° | — | — |
| 2024 | 96° | 55° | 76° | — | — |
| 2023warmest | 102° | 59° | 81° | — | — |
| 2022 | 70° | 56° | 63° | 1.63" | — |
| 2021 | 94° | 58° | 76° | — | — |
| 2020 | 98° | 61° | 79° | — | — |
| 2019 | 92° | 60° | 76° | — | — |
| 2018 | 92° | 57° | 74° | — | — |
| 2017 | 79° | 55° | 67° | 0.03" | — |
| 2016 | 93° | 54° | 73° | 0.25" | — |
| 2015 | 89° | 56° | 72° | — | — |
| 2014 | 94° | 57° | 75° | — | — |
| 2013 | 93° | 57° | 75° | — | — |
| 2012 | 78° | 48° | 63° | — | — |
| 2011 | 89° | 55° | 72° | 0.3" | — |
| 2010 | 82° | 52° | 67° | 1.19" | — |
| 2009 | 83° | 48° | 65° | — | — |
| 2008coldest | 60° | 51° | 56° | 3.07" | — |
| 2007 | 90° | 62° | 76° | — | — |
| 2006 | 99° | 59° | 79° | — | — |
| 2005 | 88° | 55° | 71° | — | — |
| 2004 | 91° | 54° | 72° | — | — |
| 2003 | 96° | 57° | 77° | — | — |
| 2002 | 86° | 51° | 69° | — | — |
| 2001 | 87° | 49° | 68° | — | — |
| 2000 | 93° | 59° | 76° | 1.07" | — |
| 1999 | 91° | 64° | 78° | 0.05" | — |
| 1998 | 93° | 56° | 74° | — | — |
| 1997 | 79° | 56° | 67° | 0.15" | — |
| 1996 | 90° | 48° | 69° | — | — |
| 1995 | 88° | 60° | 74° | 0.08" | — |
| 1994 | 92° | 57° | 74° | — | — |
| 1993 | 91° | 55° | 73° | 0.41" | — |
| 1992 | 75° | 51° | 63° | 0.15" | — |
| 1991 | 84° | 53° | 69° | — | — |
| 1990 | 85° | 56° | 70° | 0.74" | — |
| 1989 | 85° | 53° | 69° | — | — |
| 1988 | 77° | 55° | 66° | — | — |
| 1987 | 90° | 52° | 71° | — | — |
| 1986 | 89° | 59° | 74° | — | — |
| 1985 | 79° | 47° | 63° | — | — |
| 1984 | 87° | 63° | 75° | 0.66" | — |
| 1983 | 91° | 60° | 76° | — | — |
| 1982 | 89° | 60° | 75° | 0.91" | — |
| 1981 | 80° | 48° | 64° | — | — |
| 1980 | 88° | 49° | 68° | — | — |
| 1979 | 79° | 55° | 67° | 0.81" | — |
| 1978 | 92° | 50° | 71° | — | — |
| 1977 | 72° | 60° | 66° | — | — |
| 1976 | 89° | 55° | 72° | — | — |
| 1975 | 87° | 52° | 69° | — | — |
| 1974 | 91° | 53° | 72° | 0.08" | — |
| 1973 | 93° | 63° | 78° | — | — |
| 1972 | 89° | 55° | 72° | 0.71" | — |
| 1971 | 94° | 56° | 75° | — | — |
55 years of data from NORTHGLENN