Weather on September 18
Cedar Rapids, IA
55 Years of Data
Avg High
77°F
Avg Low
54°F
Warmest
1972
80°F avg
Coldest
2012
52°F avg
About This Date
September 18th in Cedar Rapids, IA typically brings pleasant fall weather, with average highs around 77°F and lows near 54°F. Over 55 years of records, the warmest September 18th was in 1972 (80°F average), while the coldest was 2012 (52°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 40% of September 18th dates historically, with the wettest September 18th recording 12.85" of rain. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
Planning for September 18th in Cedar Rapids, IA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 65° | 72° | 0.23" | — |
| 2024 | 87° | 54° | 70° | — | — |
| 2023 | 80° | 44° | 62° | — | — |
| 2022 | 86° | 65° | 75° | 0.13" | — |
| 2021 | 84° | 51° | 68° | — | — |
| 2020 | 72° | 43° | 57° | — | — |
| 2019 | 86° | 63° | 74° | 3.28" | — |
| 2018 | 86° | 59° | 73° | 1.98" | — |
| 2017 | 78° | 49° | 63° | — | — |
| 2016 | 85° | 51° | 68° | — | — |
| 2015 | 78° | 62° | 70° | 3.15" | — |
| 2014 | 73° | 45° | 59° | — | — |
| 2013 | 85° | 48° | 66° | 0.48" | — |
| 2012coldest | 64° | 39° | 52° | — | — |
| 2011 | 63° | 58° | 60° | 0.08" | — |
| 2010 | 75° | 55° | 65° | 0.86" | — |
| 2009 | 80° | 46° | 63° | — | — |
| 2008 | 80° | 57° | 69° | — | — |
| 2007 | 86° | 67° | 76° | — | — |
| 2006 | 63° | 47° | 55° | — | — |
| 2005 | 85° | 60° | 72° | — | — |
| 2004 | 78° | 57° | 68° | — | — |
| 2003 | 84° | 62° | 73° | — | — |
| 2002 | 79° | 54° | 66° | 3.4" | — |
| 2001 | 66° | 51° | 59° | 0.58" | — |
| 2000 | 87° | 57° | 72° | — | — |
| 1999 | 79° | 45° | 62° | — | — |
| 1998 | 82° | 60° | 71° | — | — |
| 1997 | 80° | 55° | 68° | 0.03" | — |
| 1996 | 72° | 44° | 58° | — | — |
| 1995 | 68° | 50° | 59° | 0.1" | — |
| 1994 | 82° | 52° | 67° | — | — |
| 1993 | 64° | 55° | 60° | 0.03" | — |
| 1992 | 76° | 58° | 67° | 2.95" | — |
| 1991 | 72° | 44° | 58° | 0.56" | — |
| 1990 | 64° | 50° | 57° | 0.86" | — |
| 1989 | 80° | 55° | 68° | — | — |
| 1988 | 91° | 70° | 80° | — | — |
| 1987 | 74° | 58° | 66° | — | — |
| 1986 | 69° | 60° | 65° | 0.03" | — |
| 1985 | 91° | 68° | 80° | — | — |
| 1984 | 78° | 48° | 63° | — | — |
| 1983 | 76° | 65° | 70° | — | — |
| 1982 | 66° | 46° | 56° | 0.05" | — |
| 1981 | 68° | 39° | 54° | — | — |
| 1980 | 76° | 51° | 63° | — | — |
| 1979 | 77° | 53° | 65° | — | — |
| 1978 | 83° | 60° | 71° | 1.98" | — |
| 1977 | 79° | 60° | 69° | 12.85" | — |
| 1976 | 83° | 46° | 64° | — | — |
| 1975 | 69° | 62° | 66° | 0.46" | — |
| 1974 | 78° | 51° | 65° | — | — |
| 1973 | 67° | 39° | 53° | — | — |
| 1972warmest | 92° | 68° | 80° | — | — |
| 1971 | 69° | 50° | 60° | 0.3" | — |
55 years of data from CEDAR RAPIDS #1