Cedar Rapids, IA: September

30 September 2026: September 2026 averaged 68.5°F in Cedar Rapids, IA, the warmest September since 1933 (2015 excluded: 4 of 30 days missing; 2025 excluded: 10 of 30 days missing), tied 9th warmest of 131 (with 1922).

September 2026

Mean temperature: 68.5°F; Warmest since 1933; 9th warmest of 131
Precipitation: 11.12 in; Wettest since 1941; 3rd wettest of 132

A normal September in Cedar Rapids, IA (1991 to 2020): a mean temperature of 63.1°F, between 59.8°F and 67°F in eight years of ten and 3.00 in of precipitation, between 1.36 in and 5.67 in in eight years of ten.

The mean temperature of every September in Cedar Rapids, IA since 1893: 68.5°F in 2026; the highest is 71.2°F, in 1906.

Normal range, 59.8 to 67°F

Every year, ranked, as a table

Every September in Cedar Rapids, IA from 1893 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	68.5	9	76.1	58	60.8	1	11.12	3	0
2025									10
2024	67.3	19	80.6	11	53.9	49	trace	132	0
2023	68.3	11	80.5	13	56.1	16	1.07	120	0
2022	65.5	43	77.3	44	53.7	52	1.69	107	0
2021	66.5	30	80	16	53	67	1.58	110	0
2020	61.3	109	72.6	110	50	108	5.58	21	0
2019	68.2	12	77.6	40	58.8	4	6.51	19	0
2018	65.7	38	75.8	62	55.6	22	6.69	18	0
2017	67	24	80.6	11	53.3	59	0.97	124	0
2016	68.1	13	78.4	29	57.8	8	6.92	17	0
2015			79.2	24			5.04	28	4
2014	61.7	104	73.1	100	50.3	104	3.55	57	0
2013	66.9	27	79.9	17	54	47	2.19	91	0
2012	60.2	119	74	88	46.4	130	1.62	109	0
2011	59.7	121	70.6	127	48.8	117	1.92	100	0
2010	63.2	85	74.2	86	52.1	80	5.17	23	0
2009	63.1	86	74	88	52.2	78	1.31	118	0
2008	62.7	90	72.8	108	52.6	74	5.07	27	0
2007	64.7	58	77.3	44	52	81	2.89	71	0
2006	59.7	121	70.3	129	49	114	2.81	77	0
2005	67	24	79.6	18	54.4	40	3.18	63	0
2004	65.6	40	78.4	29	52.9	69	0.60	127	0
2003	61	112	73.9	92	48	124	3.75	51	0
2002	65.6	40	78	33	53.1	66	2.97	69	0
2001	59.8	120	71.1	122	48.4	120	3.28	61	0
2000	64	75	76.1	58	51.9	83	4.40	38	0
1999	60.8	116	74.5	82	47.1	127	1.36	117	0
1998	66.7	29	78.1	32	55.4	25	3.02	68	0
1997	65	51	75.8	62	54.1	44	2.17	92	0
1996	61.8	103	72.6	110	50.9	99	2.73	79	0
1995	62.6	93	74.8	76	50.3	104	2.89	71	0
1994	66.1	32	77.6	40	54.6	36	2.49	83	0
1993	58	130	67.5	133	48.4	120	3.88	45	0
1992	60.9	113	71.5	119	50.2	107	4.79	30	0
1991	62.9	88	75.3	72	50.5	102	1.87	104	0
1990	65.8	37	76.9	48	54.6	36	0.60	127	0
1989	60.7	118	72.5	113	48.9	116	4.20	39	0
1988	65.3	45	77.1	47	53.4	58	2.53	82	0
1987	62.6	93	73.6	97	51.6	89	1.95	99	0
1986	64.9	53	74	88	55.8	17	7.15	14	0
1985	64.1	72	73.9	92	54.3	42	3.70	53	0
1984	61.4	108	72.9	105	49.9	112	1.92	100	0
1983	64.1	72	76.3	57	51.8	87	2.74	78	0
1982	62.2	97	71.6	118	52.8	71	3.83	48	0
1981	62.9	88	74.6	80	51.2	93	4.43	36	0
1980	64.5	61	76.4	55	52.7	72	5.10	24	0
1979	65.1	49	77.4	43	52.7	72	0.39	130	0
1978	67.5	17	79.2	24	55.7	20	3.79	49	0
1977	63.3	83	71.9	115	54.7	34	4.61	32	0
1976	61.2	110	74	88	48.3	122	0.51	129	0
1975	58.5	129	69.2	132	47.8	125	2.88	73	0
1974	58	130	69.4	131	46.5	129	1.55	111	0
1973	63.3	83	71.2	120	55.3	29	9.92	5	0
1972	65.7	38	75.6	66	55.7	20	3.85	47	0
1971	67.3	19	78.7	26	55.8	17	3.09	66	0
1970	64.2	71	74.7	79	53.7	52	7.16	13	0
1969	64.4	66	74.8	76	53.9	49	2.27	87	0
1968	62.5	95	73.7	95	51.2	93	4.41	37	0
1967	61.5	107	73	103	50	108	7.34	11	0
1966	60.8	116	72.9	105	48.7	119	1.77	105	0
1965	62.1	100	70.9	124	53.2	62	10.25	4	0
1964	64.5	61	74.8	76	54.1	44	2.84	75	0
1963	64.3	70	75.5	69	53.2	62	2.41	85	0
1962	62.2	97	73	103	51.3	92	1.92	100	0
1961	64.1	72	74.5	82	53.6	55	7.96	10	0
1960	65.5	43	76.5	54	54.5	38	2.35	86	0
1959	64.8	56	74.6	80	55.1	31	4.09	40	0
1958	63.5	80	73.4	99	53.5	56	5.91	20	0
1957	61.7	104	71.9	115	51.4	91	1.75	106	0
1956	62.4	96	74.9	74	50	108	1.01	122	0
1955	65.6	40	77.9	37	53.3	59	3.72	52	0
1954	66.1	32	77.8	38	54.5	38	2.10	95	0
1953	64.5	61	78.5	27	50.5	102	1.38	115	0
1952	64.4	66	78.5	27	50.3	104	0.97	124	0
1951	60.9	113	71.9	115	49.8	113	2.03	97	0
1950	63.5	80	75.1	73	51.9	83	2.21	88	0
1949	58.9	126	71.2	120	46.6	128	3.04	67	0
1948	67.2	22	79.5	20	54.9	33	2.55	81	0
1947	67.9	14	80.3	14	55.6	22	1.09	119	0
1946	64	75	75.6	66	52.4	76			0
1945	62.7	90	73.1	100	52.3	77	5.10	24	0
1944	64.8	56	74.5	82	55.1	31	2.11	94	0
1943	59.7	121	70.4	128	49	114	2.94	70	0
1942	61.6	106	70.9	124	52.2	78	4.08	41	0
1941	66.9	27	78	33	55.8	17	11.81	2	0
1940	64.5	61	78	33	51.1	96	3.32	59	0
1939	67.8	15	81.4	8	54.1	44	1.04	121	0
1938	65.9	36	77.6	40	54.2	43	4.45	35	0
1937	64.5	61	78	33	50.9	99	1.45	113	0
1936	67	24	76.9	48	57	11	9.27	6	0
1935	64.6	59	75.9	60	53.2	62	3.29	60	0
1934	61.2	110	72.4	114	50	108	7.00	16	0
1933	69.3	6	82.4	5	56.3	13	2.46	84	0
1932	62.2	97	75.6	66	48.8	117	2.20	89	0
1931	71.1	2	83.4	3	58.7	5	8.05	9	0
1930	67.2	22	82.3	6	52	81	3.94	43	0
1929	63.6	79	75.4	71	51.8	87	2.20	89	0
1928	58.9	126	72.7	109	45.1	131	2.04	96	0
1927	67.4	18	79.4	22	55.4	25	5.08	26	0
1926	63.8	77	72.9	105	54.7	34	8.26	8	0
1925	70	4	83.8	2	56.2	15	4.56	33	0
1924	58.6	128	72.6	110	44.6	132	1.91	103	0
1923	64.6	59	73.6	97	55.4	25	8.47	7	1
1922	68.5	9	80.2	15	56.8	12	1.99	98	0
1921	69.1	8	79.5	20	58.7	5	7.04	15	0
1920	69.2	7	81	9	57.3	10	0.69	126	0
1919	69.5	5	81	9	58.1	7	3.35	58	0
1918	59.2	124	71	123	47.8	125	1.65	108	1
1917	62.1	100	73.7	95	51	98	3.59	56	2
1916	63.4	82	75.7	64	51.1	96	2.13	93	0
1915	65.2	48	76.4	55	53.9	49	7.22	12	0
1914	65	51	76.7	51	53.3	59	15.38	1	0
1913	64.4	66	75.9	60	52.9	69	4.48	34	0
1912	64.4	66	74.4	85	54.4	40	3.63	55	0
1911	64.9	53	75.7	64	54	47	4.65	31	0
1910	63	87	74.1	87	51.9	83	3.21	62	0
1909	62.7	90	73.9	92	51.5	90	3.91	44	0
1908	67.7	16	82.1	7	53.2	62	1.39	114	0
1907	63.7	78	75.5	69	51.9	83	5.22	22	0
1906	71.2	1	82.5	4	59.8	2	0.99	123	0
1905	66.5	30	77.8	38	55.2	30	1.50	112	0
1904	65.3	45	76.9	48	53.7	52	1.38	115	0
1903	61.9	102	73.1	100	50.6	101	4.06	42	0
1902	60.9	113	70.7	126	51.2	93	4.83	29	0
1901	65.3	45	77.3	44	53.5	56	2.64	80	2
1900	66	34	76.7	51	55.4	25	2.83	76	0
1899	66	34	79.4	22	52.5	75	0.37	131	0
1898	67.3	19	78.3	31	56.3	13	3.11	65	0
1897	70.9	3	84.2	1	57.6	9	3.78	50	0
1896	59.1	125	69.9	130	48.3	122	3.18	63	0
1895			79.6	18	59.1	3	3.64	54	4
1894	65.1	49	74.9	74	55.5	24	3.86	46	1
1893	64.9	53	76.7	51	53	67	2.85	74	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1906	71.2
1931	71.1
1897	70.9
1925	70
1919	69.5
1933	69.3
1920	69.2
1921	69.1
2026	68.5
1922	68.5

Coldest
Year	Mean, °F
1993	58
1974	58
1975	58.5
1924	58.6
1949	58.9
1928	58.9
1896	59.1
1918	59.2
2011	59.7
2006	59.7
More years share the last value

Wettest
Year	Precipitation, in
1914	15.38
1941	11.81
2026	11.12
1965	10.25
1973	9.92
1936	9.27
1923	8.47
1926	8.26
1931	8.05
1961	7.96

Driest
Year	Precipitation, in
2024	trace
1899	0.37
1979	0.39
1976	0.51
2004	0.60
1990	0.60
1920	0.69
2017	0.97
1952	0.97
1906	0.99

The hottest, coldest and wettest days

Hottest day: 94°F; 3 September 2026
Coldest night: 49°F; 29 September 2026, 23 September 2026
Wettest day: 2.49 in; 20 September 2026

Every month, season and year

Months

Seasons

Years

Cedar Rapids, IA the day's answers

All-time records

Every answer in words

September 2026 brought 11.12 in of precipitation in Cedar Rapids, IA, the wettest September since 1941 (1946 excluded: 11 of 30 days missing; 2025 excluded: 10 of 30 days missing), 3rd wettest of 132.
The hottest day of September 2026 in Cedar Rapids, IA: 94°F on Thursday 3 September 2026.
The coldest night of September 2026 in Cedar Rapids, IA: a low of 49°F on Tuesday 29 September 2026 and Wednesday 23 September 2026.
The wettest day of September 2026 in Cedar Rapids, IA: 2.49 in on Sunday 20 September 2026.