Weather on September 15
Cedar Rapids, IA
55 Years of Data
Avg High
76°F
Avg Low
53°F
Warmest
1994
79°F avg
Coldest
2007
47°F avg
About This Date
September 15th in Cedar Rapids, IA typically brings pleasant fall weather, with average highs around 76°F and lows near 53°F. Over 55 years of records, the warmest September 15th was in 1994 (79°F average), while the coldest was 2007 (47°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 15th dates historically, with the wettest September 15th recording 3.02" of rain. The last decade has been 8.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.9°F warmer on this date compared to 20-30 years ago.
Planning for September 15th in Cedar Rapids, IA? Great weather for outdoor activities.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 67° | 79° | — | — |
| 2024 | 90° | 63° | 76° | — | — |
| 2023 | 83° | 62° | 72° | — | — |
| 2022 | 85° | 50° | 67° | — | — |
| 2021 | 80° | 51° | 66° | — | — |
| 2020 | 84° | 54° | 69° | — | — |
| 2019 | 86° | 64° | 75° | 0.51" | — |
| 2018 | 91° | 61° | 76° | — | — |
| 2017 | 90° | 62° | 76° | — | — |
| 2016 | 83° | 56° | 69° | — | — |
| 2015 | 86° | 63° | 74° | — | — |
| 2014 | 67° | 52° | 59° | — | — |
| 2013 | 71° | 55° | 63° | 1.37" | — |
| 2012 | 79° | 43° | 61° | — | — |
| 2011 | 61° | 35° | 48° | — | — |
| 2010 | 81° | 58° | 69° | — | — |
| 2009 | 83° | 53° | 68° | — | — |
| 2008 | 64° | 53° | 59° | — | — |
| 2007coldest | 63° | 32° | 47° | — | — |
| 2006 | 78° | 54° | 66° | — | — |
| 2005 | 73° | 51° | 62° | — | — |
| 2004 | 85° | 69° | 77° | 0.81" | — |
| 2003 | 75° | 49° | 62° | — | — |
| 2002 | 73° | 55° | 64° | — | — |
| 2001 | 68° | 53° | 61° | — | — |
| 2000 | 72° | 44° | 58° | — | — |
| 1999 | 68° | 41° | 55° | — | — |
| 1998 | 73° | 66° | 70° | 0.05" | — |
| 1997 | 81° | 57° | 69° | — | — |
| 1996 | 71° | 44° | 58° | — | — |
| 1995 | 80° | 51° | 66° | — | — |
| 1994warmest | 89° | 70° | 79° | 0.05" | — |
| 1993 | 54° | 46° | 50° | 0.03" | — |
| 1992 | 79° | 65° | 72° | 1.63" | — |
| 1991 | 84° | 71° | 78° | 0.25" | — |
| 1990 | 79° | 47° | 63° | — | — |
| 1989 | 71° | 42° | 57° | — | — |
| 1988 | 78° | 57° | 68° | — | — |
| 1987 | 75° | 59° | 67° | 0.69" | — |
| 1986 | 74° | 60° | 67° | 0.05" | — |
| 1985 | 77° | 38° | 57° | — | — |
| 1984 | 66° | 39° | 53° | — | — |
| 1983 | 67° | 51° | 59° | 3.02" | — |
| 1982 | 69° | 57° | 63° | 0.08" | — |
| 1981 | 72° | 55° | 63° | — | — |
| 1980 | 69° | 55° | 62° | — | — |
| 1979 | 72° | 42° | 57° | — | — |
| 1978 | 85° | 57° | 71° | — | — |
| 1977 | 68° | 55° | 62° | 0.08" | — |
| 1976 | 78° | 46° | 62° | — | — |
| 1975 | 66° | 53° | 60° | 0.08" | — |
| 1974 | 76° | 50° | 63° | — | — |
| 1973 | 72° | 47° | 59° | 0.23" | — |
| 1972 | 81° | 53° | 67° | — | — |
| 1971 | 71° | 47° | 59° | — | — |
55 years of data from CEDAR RAPIDS #1