Weather on September 30
Cedar Rapids, IA
55 Years of Data
Avg High
74°F
Avg Low
49°F
Warmest
2002
77°F avg
Coldest
1972
44°F avg
About This Date
September 30th in Cedar Rapids, IA typically brings pleasant fall weather, with average highs around 74°F and lows near 49°F — a 25°F daily swing. Over 55 years of records, the warmest September 30th was in 2002 (77°F average), while the coldest was 1972 (44°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 18% of September 30th dates historically, with the wettest September 30th recording 1.47" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for September 30th in Cedar Rapids, IA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 54° | 71° | — | — |
| 2024 | 84° | 53° | 69° | — | — |
| 2023 | 94° | 61° | 77° | — | — |
| 2022 | 73° | 34° | 53° | — | — |
| 2021 | 87° | 61° | 74° | — | — |
| 2020 | 68° | 51° | 60° | 0.15" | — |
| 2019 | 87° | 62° | 75° | — | — |
| 2018 | 54° | 44° | 49° | 0.23" | — |
| 2017 | 71° | 41° | 56° | — | — |
| 2016 | 74° | 48° | 61° | — | — |
| 2015 | 66° | 41° | 54° | — | — |
| 2014 | 80° | 51° | 66° | — | — |
| 2013 | 76° | 42° | 59° | — | — |
| 2012 | 79° | 40° | 59° | — | — |
| 2011 | 65° | 48° | 56° | — | — |
| 2010 | 74° | 49° | 61° | — | — |
| 2009 | 64° | 41° | 53° | — | — |
| 2008 | 68° | 44° | 56° | — | — |
| 2007 | 82° | 59° | 71° | — | — |
| 2006 | 72° | 47° | 59° | — | — |
| 2005 | 74° | 46° | 60° | — | — |
| 2004 | 74° | 41° | 57° | — | — |
| 2003 | 59° | 33° | 46° | — | — |
| 2002warmest | 86° | 68° | 77° | — | — |
| 2001 | 72° | 40° | 56° | — | — |
| 2000 | 77° | 57° | 67° | — | — |
| 1999 | 72° | 45° | 58° | — | — |
| 1998 | 81° | 56° | 68° | — | — |
| 1997 | 76° | 53° | 64° | — | — |
| 1996 | 80° | 51° | 66° | — | — |
| 1995 | 74° | 61° | 67° | 0.76" | — |
| 1994 | 84° | 54° | 69° | — | — |
| 1993 | 65° | 37° | 51° | — | — |
| 1992 | 73° | 40° | 56° | — | — |
| 1991 | 80° | 61° | 70° | — | — |
| 1990 | 66° | 38° | 52° | 0.03" | — |
| 1989 | 78° | 42° | 60° | — | — |
| 1988 | 75° | 61° | 68° | 0.03" | — |
| 1987 | 67° | 45° | 56° | — | — |
| 1986 | 67° | 52° | 59° | 1.32" | — |
| 1985 | 49° | 40° | 44° | 1.47" | — |
| 1984 | 64° | 30° | 47° | — | — |
| 1983 | 79° | 52° | 65° | — | — |
| 1982 | 83° | 63° | 73° | — | — |
| 1981 | 85° | 57° | 71° | — | — |
| 1980 | 75° | 56° | 65° | — | — |
| 1979 | 76° | 49° | 62° | — | — |
| 1978 | 60° | 51° | 56° | 0.03" | — |
| 1977 | 72° | 52° | 62° | 0.36" | — |
| 1976 | 78° | 38° | 58° | — | — |
| 1975 | 64° | 47° | 55° | — | — |
| 1974 | 67° | 36° | 51° | — | — |
| 1973 | 65° | 56° | 60° | 0.08" | — |
| 1972coldest | 60° | 29° | 44° | — | — |
| 1971 | 88° | 61° | 74° | — | — |
55 years of data from CEDAR RAPIDS #1