Weather on August 31
Arvada, CO
55 Years of Data
Avg High
83°F
Avg Low
55°F
Warmest
1985
81°F avg
Coldest
2005
48°F avg
About This Date
August 31st in Arvada, CO typically brings warm summer weather, with average highs around 83°F and lows near 55°F — a 28°F daily swing. Over 55 years of records, the warmest August 31st was in 1985 (81°F average), while the coldest was 2005 (48°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 16% of August 31st dates historically, with the wettest August 31st recording 1.24" of rain. The last decade has been 6.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.2°F warmer on this date compared to 20-30 years ago.
Planning for August 31st in Arvada, CO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 53° | 64° | — | — |
| 2024 | 86° | 58° | 72° | — | — |
| 2023 | 93° | 62° | 78° | — | — |
| 2022 | 89° | 66° | 78° | — | — |
| 2021 | 92° | 59° | 75° | — | — |
| 2020 | 88° | 42° | 65° | 0.13" | — |
| 2019 | 87° | 53° | 70° | — | — |
| 2018 | 91° | 63° | 77° | — | — |
| 2017 | 88° | 53° | 70° | 0.05" | — |
| 2016 | 80° | 43° | 61° | 1.24" | — |
| 2015 | 93° | 61° | 77° | — | — |
| 2014 | 85° | 59° | 72° | — | — |
| 2013 | 91° | 65° | 78° | 0.25" | — |
| 2012 | 92° | 58° | 75° | — | — |
| 2011 | 80° | 53° | 67° | — | — |
| 2010 | 70° | 48° | 59° | — | — |
| 2009 | 75° | 49° | 62° | — | — |
| 2008 | 78° | 55° | 67° | — | — |
| 2007 | 81° | 49° | 65° | — | — |
| 2006 | 75° | 50° | 63° | — | — |
| 2005coldest | 61° | 36° | 48° | — | — |
| 2004 | 74° | 48° | 61° | — | — |
| 2003 | 62° | 41° | 52° | — | — |
| 2002 | 78° | 51° | 65° | — | — |
| 2001 | 75° | 57° | 66° | — | — |
| 2000 | 87° | 53° | 70° | 0.05" | — |
| 1999 | 90° | 68° | 79° | — | — |
| 1998 | 93° | 60° | 77° | — | — |
| 1997 | 87° | 53° | 70° | — | — |
| 1996 | 76° | 44° | 60° | — | — |
| 1995 | 93° | 52° | 72° | — | — |
| 1994 | 92° | 52° | 72° | 0.13" | — |
| 1993 | 67° | 44° | 55° | — | — |
| 1992 | 78° | 60° | 69° | — | — |
| 1991 | 87° | 54° | 70° | — | — |
| 1990 | 97° | 59° | 78° | — | — |
| 1989 | 93° | 58° | 75° | — | — |
| 1988 | 90° | 60° | 75° | — | — |
| 1987 | 79° | 41° | 60° | — | — |
| 1986 | 82° | 55° | 69° | 0.3" | — |
| 1985warmest | 96° | 67° | 81° | — | — |
| 1984 | 89° | 54° | 71° | — | — |
| 1983 | 87° | 67° | 77° | — | — |
| 1982 | 91° | 59° | 75° | — | — |
| 1981 | 90° | 57° | 73° | — | — |
| 1980 | 67° | 47° | 57° | 0.03" | — |
| 1979 | 80° | 51° | 66° | — | — |
| 1978 | 87° | 58° | 72° | — | — |
| 1977 | 81° | 56° | 68° | — | — |
| 1976 | 76° | 55° | 65° | — | — |
| 1975 | 93° | 59° | 76° | — | — |
| 1974 | 84° | 50° | 67° | — | — |
| 1973 | 78° | 58° | 68° | 0.08" | — |
| 1972 | 71° | 61° | 66° | — | — |
| 1971 | 87° | 59° | 73° | — | — |
55 years of data from WATERTON NORTH COLORADO