Weather on August 31
Davenport, IA
55 Years of Data
Avg High
82°F
Avg Low
63°F
Warmest
2000
87°F avg
Coldest
2009
59°F avg
About This Date
August 31st in Davenport, IA typically brings warm summer weather, with average highs around 82°F and lows near 63°F. Over 55 years of records, the warmest August 31st was in 2000 (87°F average), while the coldest was 2009 (59°F) — a 28°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 3.73" of rain. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for August 31st in Davenport, IA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 56° | 69° | — | — |
| 2024 | 82° | 63° | 72° | — | — |
| 2023 | 79° | 57° | 68° | — | — |
| 2022 | 85° | 62° | 73° | — | — |
| 2021 | 76° | 66° | 71° | 3.73" | — |
| 2020 | 80° | 62° | 71° | — | — |
| 2019 | 72° | — | — | 0.36" | — |
| 2018 | 82° | 62° | 72° | 0.05" | — |
| 2017 | 73° | 60° | 67° | — | — |
| 2016 | 78° | 66° | 72° | — | — |
| 2015 | 88° | 64° | 76° | — | — |
| 2014 | 87° | 66° | 77° | — | — |
| 2013 | 83° | 71° | 77° | — | — |
| 2012 | 86° | 72° | 79° | — | — |
| 2011 | 89° | 65° | 77° | — | — |
| 2010 | 86° | 73° | 80° | — | — |
| 2009coldest | 68° | 50° | 59° | — | — |
| 2008 | 86° | 65° | 75° | — | — |
| 2007 | 78° | 60° | 69° | — | — |
| 2006 | 78° | 60° | 69° | — | — |
| 2005 | 83° | 62° | 72° | — | — |
| 2004 | 80° | 60° | 70° | — | — |
| 2003 | 70° | 61° | 65° | — | — |
| 2002 | 83° | 66° | 74° | — | — |
| 2001 | 78° | 63° | 70° | — | — |
| 2000warmest | 97° | 77° | 87° | — | — |
| 1999 | 79° | 57° | 68° | — | — |
| 1998 | 79° | 64° | 71° | — | — |
| 1997 | 83° | 68° | 75° | 3.15" | — |
| 1996 | 80° | 64° | 72° | — | — |
| 1995 | 83° | 69° | 76° | — | — |
| 1994 | 66° | 59° | 63° | 1.37" | — |
| 1993 | 76° | 64° | 70° | 2.87" | — |
| 1992 | 75° | 55° | 65° | — | — |
| 1991 | 86° | 68° | 77° | — | — |
| 1990 | 84° | 64° | 74° | — | — |
| 1989 | 76° | 66° | 71° | — | — |
| 1988 | 84° | 62° | 73° | — | — |
| 1987 | 73° | 50° | 62° | — | — |
| 1986 | 81° | 57° | 69° | — | — |
| 1985 | 84° | 61° | 72° | — | — |
| 1984 | 86° | 50° | 68° | — | — |
| 1983 | 82° | 66° | 74° | 0.48" | — |
| 1982 | 78° | 65° | 71° | — | — |
| 1981 | 88° | 68° | 78° | — | — |
| 1980 | 85° | 67° | 76° | 2.79" | — |
| 1979 | 90° | 69° | 79° | — | — |
| 1978 | 88° | 61° | 74° | — | — |
| 1977 | 87° | 65° | 76° | — | — |
| 1976 | 87° | 64° | 76° | — | — |
| 1975 | 77° | 63° | 70° | 0.2" | — |
| 1974 | 71° | 59° | 65° | — | — |
| 1973 | 92° | 72° | 82° | — | — |
| 1972 | 87° | 70° | 78° | — | — |
| 1971 | 87° | 65° | 76° | — | — |
55 years of data from DAVENPORT L&D 15