Weather on August 18
Davenport, IA
55 Years of Data
Avg High
83°F
Avg Low
65°F
Warmest
1988
86°F avg
Coldest
1977
62°F avg
About This Date
August 18th in Davenport, IA typically brings warm summer weather, with average highs around 83°F and lows near 65°F. Over 55 years of records, the warmest August 18th was in 1988 (86°F average), while the coldest was 1977 (62°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 36% of August 18th dates historically, with the wettest August 18th recording 6.83" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Davenport, IA? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 55° | 73° | 2.08" | — |
| 2024 | 82° | 69° | 76° | — | — |
| 2023 | 80° | 58° | 69° | — | — |
| 2022 | 86° | 61° | 73° | — | — |
| 2021 | 91° | 67° | 79° | — | — |
| 2020 | 80° | 58° | 69° | — | — |
| 2019 | 83° | 65° | 74° | 0.28" | — |
| 2018 | 83° | 66° | 74° | — | — |
| 2017 | 82° | 60° | 71° | — | — |
| 2016 | 89° | 72° | 80° | — | — |
| 2015 | 82° | 66° | 74° | 2.36" | — |
| 2014 | 84° | 69° | 77° | — | — |
| 2013 | 81° | 60° | 70° | — | — |
| 2012 | 76° | 55° | 65° | — | — |
| 2011 | 86° | 64° | 75° | — | — |
| 2010 | 82° | 64° | 73° | 0.76" | — |
| 2009 | 77° | 68° | 73° | 0.43" | — |
| 2008 | 82° | 71° | 77° | — | — |
| 2007 | 74° | 63° | 68° | 0.03" | — |
| 2006 | 77° | 71° | 74° | 0.28" | — |
| 2005 | 92° | 67° | 79° | — | — |
| 2004 | 80° | 60° | 70° | 0.03" | — |
| 2003 | 87° | 69° | 78° | — | — |
| 2002 | 75° | 57° | 66° | — | — |
| 2001 | 79° | 61° | 70° | — | — |
| 2000 | 76° | 60° | 68° | 0.1" | — |
| 1999 | 74° | 67° | 70° | — | — |
| 1998 | 79° | 69° | 74° | 1.7" | — |
| 1997 | 79° | 62° | 70° | 0.38" | — |
| 1996 | 77° | 67° | 72° | 0.05" | — |
| 1995 | 94° | 76° | 85° | 3.2" | — |
| 1994 | 85° | 66° | 75° | 0.13" | — |
| 1993 | 83° | 63° | 73° | — | — |
| 1992 | 79° | 64° | 71° | 0.03" | — |
| 1991 | 85° | 66° | 75° | 0.05" | — |
| 1990 | 92° | 76° | 84° | 4.09" | — |
| 1989 | 81° | 62° | 71° | — | — |
| 1988warmest | 99° | 74° | 86° | — | — |
| 1987 | 84° | 62° | 73° | — | — |
| 1986 | 80° | 65° | 72° | 0.23" | — |
| 1985 | 78° | 62° | 70° | — | — |
| 1984 | 83° | 68° | 75° | — | — |
| 1983 | 94° | 75° | 84° | — | — |
| 1982 | 86° | 64° | 75° | — | — |
| 1981 | 75° | 52° | 63° | — | — |
| 1980 | 87° | 65° | 76° | 0.41" | — |
| 1979 | 89° | 66° | 78° | 6.83" | — |
| 1978 | 95° | 71° | 83° | — | — |
| 1977coldest | 72° | 53° | 62° | — | — |
| 1976 | 86° | 64° | 75° | — | — |
| 1975 | 75° | 64° | 70° | — | — |
| 1974 | 83° | 63° | 73° | — | — |
| 1973 | 90° | 68° | 79° | — | — |
| 1972 | 95° | 73° | 84° | — | — |
| 1971 | 85° | 62° | 73° | — | — |
55 years of data from DAVENPORT L&D 15