Weather on September 1
Des Moines, IA
55 Years of Data
Avg High
82°F
Avg Low
59°F
Warmest
1984
83°F avg
Coldest
1994
58°F avg
About This Date
September 1st in Des Moines, IA typically brings warm fall weather, with average highs around 82°F and lows near 59°F. Over 55 years of records, the warmest September 1st was in 1984 (83°F average), while the coldest was 1994 (58°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 20% of September 1st dates historically, with the wettest September 1st recording 5" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for September 1st in Des Moines, IA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 58° | 67° | — | — |
| 2024 | 79° | 62° | 70° | — | — |
| 2023 | 87° | 58° | 72° | — | — |
| 2022 | 85° | 67° | 76° | 3.91" | — |
| 2021 | 80° | 61° | 70° | — | — |
| 2020 | 80° | 59° | 70° | 0.05" | — |
| 2019 | 67° | 55° | 61° | — | — |
| 2018 | 87° | 67° | 77° | 3.05" | — |
| 2017 | 81° | 52° | 66° | — | — |
| 2016 | 80° | 55° | 68° | — | — |
| 2015 | 86° | 67° | 76° | — | — |
| 2014 | 86° | 64° | 75° | 5" | — |
| 2013 | 91° | 67° | 79° | 0.23" | — |
| 2012 | 83° | 69° | 76° | — | — |
| 2011 | 93° | 61° | 77° | — | — |
| 2010 | 88° | 68° | 78° | 2.69" | — |
| 2009 | 74° | 46° | 60° | — | — |
| 2008 | 85° | 61° | 73° | — | — |
| 2007 | 83° | 54° | 68° | — | — |
| 2006 | 82° | 54° | 68° | — | — |
| 2005 | 87° | 51° | 69° | — | — |
| 2004 | 85° | 54° | 69° | — | — |
| 2003 | 66° | 52° | 59° | 0.1" | — |
| 2002 | 88° | 63° | 75° | — | — |
| 2001 | 84° | 48° | 66° | — | — |
| 2000 | 98° | 68° | 83° | — | — |
| 1999 | 79° | 40° | 59° | — | — |
| 1998 | 78° | 56° | 67° | — | — |
| 1997 | 91° | 56° | 73° | — | — |
| 1996 | 82° | 52° | 67° | — | — |
| 1995 | 81° | 54° | 67° | — | — |
| 1994coldest | 67° | 49° | 58° | — | — |
| 1993 | 72° | 49° | 60° | — | — |
| 1992 | 74° | 47° | 60° | — | — |
| 1991 | 84° | 58° | 71° | — | — |
| 1990 | 89° | 65° | 77° | — | — |
| 1989 | 80° | 62° | 71° | — | — |
| 1988 | 85° | 59° | 72° | — | — |
| 1987 | 79° | 51° | 65° | — | — |
| 1986 | 84° | 56° | 70° | — | — |
| 1985 | 86° | 70° | 78° | — | — |
| 1984warmest | 97° | 69° | 83° | — | — |
| 1983 | 87° | 58° | 72° | — | — |
| 1982 | 83° | 66° | 74° | — | — |
| 1981 | 74° | 54° | 64° | — | — |
| 1980 | 82° | 63° | 72° | — | — |
| 1979 | 81° | 62° | 71° | 0.58" | — |
| 1978 | 84° | 61° | 72° | — | — |
| 1977 | 83° | 62° | 72° | 0.64" | — |
| 1976 | 90° | 63° | 76° | — | — |
| 1975 | 79° | 60° | 69° | — | — |
| 1974 | 68° | 52° | 60° | 0.08" | — |
| 1973 | 87° | 68° | 78° | 0.76" | — |
| 1972 | 81° | 54° | 67° | — | — |
| 1971 | 86° | 63° | 74° | — | — |
55 years of data from ANKENY