Weather on August 9
Arvada, CO
55 Years of Data
Avg High
84°F
Avg Low
57°F
Warmest
1993
80°F avg
Coldest
2009
57°F avg
About This Date
August 9th in Arvada, CO typically brings warm summer weather, with average highs around 84°F and lows near 57°F — a 27°F daily swing. Over 55 years of records, the warmest August 9th was in 1993 (80°F average), while the coldest was 2009 (57°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 9th dates historically, with the wettest August 9th recording 1.91" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for August 9th in Arvada, CO? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 96° | 62° | 79° | — | — |
| 2024 | 76° | 57° | 66° | 1.24" | — |
| 2023 | 83° | 52° | 67° | — | — |
| 2022 | 88° | 61° | 74° | — | — |
| 2021 | 90° | 61° | 75° | — | — |
| 2020 | 93° | 62° | 78° | — | — |
| 2019 | 82° | 61° | 71° | 0.46" | — |
| 2018 | 82° | 56° | 69° | — | — |
| 2017 | 71° | 53° | 62° | 0.15" | — |
| 2016 | 87° | 62° | 75° | 0.08" | — |
| 2015 | 88° | 59° | 73° | — | — |
| 2014 | 83° | 61° | 72° | — | — |
| 2013 | 76° | 56° | 66° | 1.91" | — |
| 2012 | 91° | 62° | 77° | — | — |
| 2011 | 80° | 51° | 66° | — | — |
| 2010 | 71° | 51° | 61° | — | — |
| 2009coldest | 70° | 44° | 57° | — | — |
| 2008 | 76° | 53° | 64° | — | — |
| 2007 | 82° | 56° | 69° | — | — |
| 2006 | 78° | 56° | 67° | — | — |
| 2005 | 74° | 52° | 63° | — | — |
| 2004 | 71° | 47° | 59° | — | — |
| 2003 | 81° | 55° | 68° | — | — |
| 2002 | 74° | 48° | 61° | — | — |
| 2001 | 90° | 63° | 76° | — | — |
| 2000 | 95° | 64° | 80° | — | — |
| 1999 | 84° | 64° | 74° | 0.38" | — |
| 1998 | 92° | 61° | 76° | — | — |
| 1997 | 92° | 60° | 76° | — | — |
| 1996 | 86° | 57° | 72° | — | — |
| 1995 | 98° | 52° | 75° | — | — |
| 1994 | 88° | 60° | 74° | — | — |
| 1993warmest | 93° | 67° | 80° | — | — |
| 1992 | 90° | 64° | 77° | — | — |
| 1991 | 82° | 55° | 69° | — | — |
| 1990 | 90° | 59° | 74° | — | — |
| 1989 | 83° | 53° | 68° | — | — |
| 1988 | 85° | 56° | 70° | — | — |
| 1987 | 79° | 52° | 65° | — | — |
| 1986 | 85° | 54° | 69° | — | — |
| 1985 | 96° | 58° | 77° | — | — |
| 1984 | 87° | 60° | 74° | — | — |
| 1983 | 89° | 63° | 76° | — | — |
| 1982 | 87° | 62° | 75° | — | — |
| 1981 | 82° | 54° | 68° | 0.05" | — |
| 1980 | 76° | 55° | 65° | 0.05" | — |
| 1979 | 84° | 53° | 69° | 0.86" | — |
| 1978 | 85° | 54° | 69° | — | — |
| 1977 | 88° | 63° | 75° | — | — |
| 1976 | 81° | 52° | 66° | 0.03" | — |
| 1975 | 92° | 51° | 71° | — | — |
| 1974 | 78° | 51° | 65° | 0.64" | — |
| 1973 | 89° | 63° | 76° | — | — |
| 1972 | 89° | 57° | 73° | — | — |
| 1971 | 87° | 57° | 72° | — | — |
55 years of data from WATERTON NORTH COLORADO