Weather on September 15
Davenport, IA
55 Years of Data
Avg High
76°F
Avg Low
56°F
Warmest
1994
81°F avg
Coldest
2011
51°F avg
About This Date
September 15th in Davenport, IA typically brings pleasant fall weather, with average highs around 76°F and lows near 56°F. Over 55 years of records, the warmest September 15th was in 1994 (81°F average), while the coldest was 2011 (51°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 15th dates historically, with the wettest September 15th recording 4.01" of rain. The last decade has been 7.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.0°F warmer on this date compared to 20-30 years ago.
Planning for September 15th in Davenport, IA? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | — | 64° | — | — | — |
| 2024 | 87° | 68° | 78° | — | — |
| 2023 | 80° | 58° | 69° | — | — |
| 2022 | 84° | 61° | 72° | — | — |
| 2021 | 84° | 56° | 70° | — | — |
| 2020 | 82° | 59° | 71° | — | — |
| 2019 | 86° | 56° | 71° | 1.96" | — |
| 2018 | 87° | 67° | 77° | — | — |
| 2017 | 88° | 58° | 73° | — | — |
| 2016 | 82° | 58° | 70° | — | — |
| 2015 | 85° | 65° | 75° | — | — |
| 2014 | 65° | 51° | 58° | 0.43" | — |
| 2013 | 64° | 56° | 60° | 1.55" | — |
| 2012 | 80° | 53° | 67° | — | — |
| 2011coldest | 61° | 41° | 51° | — | — |
| 2010 | 80° | 60° | 70° | — | — |
| 2009 | 79° | 58° | 68° | — | — |
| 2008 | 75° | 60° | 68° | — | — |
| 2007 | 64° | 42° | 53° | — | — |
| 2006 | 79° | 59° | 69° | — | — |
| 2005 | 65° | 58° | 61° | — | — |
| 2004 | 78° | 66° | 72° | 1.52" | — |
| 2003 | 78° | 53° | 66° | 0.56" | — |
| 2002 | 80° | 58° | 69° | — | — |
| 2001 | 68° | 55° | 62° | — | — |
| 2000 | 68° | 51° | 60° | — | — |
| 1999 | 68° | 50° | 59° | — | — |
| 1998 | 74° | 67° | 70° | 4.01" | — |
| 1997 | 82° | 63° | 72° | — | — |
| 1996 | 73° | 50° | 62° | — | — |
| 1995 | 81° | 56° | 68° | — | — |
| 1994warmest | 91° | 72° | 81° | — | — |
| 1993 | 56° | 50° | 53° | 0.97" | — |
| 1992 | 82° | 67° | 74° | 0.69" | — |
| 1991 | 87° | 68° | 78° | 0.13" | — |
| 1990 | 77° | 51° | 64° | — | — |
| 1989 | 69° | 48° | 59° | — | — |
| 1988 | 80° | 58° | 69° | — | — |
| 1987 | 75° | 59° | 67° | 0.08" | — |
| 1986 | 80° | 55° | 68° | — | — |
| 1985 | 77° | 46° | 62° | — | — |
| 1984 | 65° | 41° | 53° | — | — |
| 1983 | 64° | 52° | 58° | 0.03" | — |
| 1982 | 72° | 53° | 62° | — | — |
| 1981 | 74° | 57° | 65° | — | — |
| 1980 | 70° | 57° | 63° | — | — |
| 1979 | 73° | 45° | 59° | — | — |
| 1978 | 87° | 58° | 72° | — | — |
| 1977 | 65° | 52° | 58° | 0.03" | — |
| 1976 | 67° | 54° | 60° | 0.13" | — |
| 1975 | 70° | 57° | 63° | — | — |
| 1974 | 76° | 52° | 64° | — | — |
| 1973 | 73° | 53° | 63° | — | — |
| 1972 | 80° | 55° | 68° | — | — |
| 1971 | 73° | 54° | 63° | — | — |
55 years of data from DAVENPORT L&D 15