Burlington, IA: September

30 September 2026: September 2026 averaged 71.5°F in Burlington, IA, the warmest September since 2019 (2025 excluded: 10 of 30 days missing), tied 6th warmest of 126 (with 1925).

September 2026

Mean temperature: 71.5°F; Warmest since 2019; 6th warmest of 126
Precipitation: 4.28 in; Wettest since 2022; 43rd wettest of 126

A normal September in Burlington, IA (1991 to 2020): a mean temperature of 67.1°F, between 63.4°F and 70.8°F in eight years of ten and 3.49 in of precipitation, between 1.08 in and 6.36 in in eight years of ten.

The mean temperature of every September in Burlington, IA since 1899: 71.5°F in 2026; the highest is 73.7°F, in 1998.

Normal range, 63.4 to 70.8°F

Every year, ranked, as a table

Every September in Burlington, IA from 1897 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	71.5	6	80	31	63.1	3	4.28	43	0
2025									10
2024	68.1	37	80	31	56.1	52	0.61	121	0
2023	68.6	31	79.5	37	57.7	36	1.67	103	0
2022	66.8	61	77.6	63	55.9	57	5.13	30	0
2021	70.1	19	82	13	58.2	21	2.57	77	0
2020	66.9	58	77.8	60	56	53	4.14	46	0
2019	72.2	4	81.2	17	63.3	2	8.23	9	0
2018	69.1	26	79.5	37	58.6	19	6.02	20	0
2017	68.5	33	80.6	24	56.4	49	0.13	125	0
2016	70.6	14	81.1	20	60	11	3.23	65	0
2015	71	10	82.1	12	59.9	13	1.09	117	0
2014	64.1	104	75.1	95	53.1	99	5.14	29	0
2013	69.4	22	81.5	15	57.3	39	1.20	115	0
2012	63.7	105	76.6	80	50.7	123	2.07	92	0
2011	63	114	73.9	110	52.1	111	1.32	111	0
2010	67.3	51	77.6	63	57	43	7.43	11	2
2009	67.5	47	77.2	68	57.9	33	1.01	119	0
2008	67.4	48	76.7	79	58.2	21	8.71	6	0
2007	70.8	11	83.5	6	58.2	21	1.33	110	0
2006	64.2	103	75.3	94	53.2	97	1.27	113	0
2005	70.6	14	82.2	10	59	15	3.66	56	0
2004	68	41	80.4	27	55.5	67	1.53	105	0
2003	62.2	119	73.7	113	50.8	122	3.97	52	0
2002	67.7	44	80	31	55.5	67	0.84	120	0
2001	63.6	106	74	108	53.1	99	3.80	53	0
2000	67.1	55	79.3	44	54.9	77	6.07	19	0
1999	67.1	55	80.2	28	54	86	4.95	33	0
1998	73.7	1	84.8	1	62.6	4	6.24	15	0
1997	65.7	81	76.1	86	55.3	73	1.80	97	0
1996	64.8	92	75.5	92	54	86	2.72	75	0
1995	63.4	110	73.7	113	53.2	97	3.70	55	0
1994	66.8	61	77.9	59	55.7	60	1.70	101	0
1993	61.7	121	70.6	126	52.8	107	4.81	36	0
1992	64.3	102	74.3	106	54.2	84	4.34	41	0
1991	66.4	68	77.1	71	55.6	61	3.31	63	0
1990	68.1	37	78	56	58.1	27	1.73	99	0
1989	62.9	116	72.9	118	52.9	103	4.02	49	0
1988	68.3	35	79.5	37	57.2	40	2.17	88	0
1987	66.6	64	76.9	75	56.2	51	1.94	95	0
1986	69.2	25	78.2	55	60.1	10	8.53	7	2
1985	67.8	43	77.6	63	57.7	36	2.18	87	1
1984	63.6	106	73.4	115	53.7	92	2.06	93	1
1983	66.9	58	78.4	54	55.6	61	6.58	13	1
1982	64.5	98	73.8	111	55.2	76	2.43	81	0
1981	64.6	95	75.7	88	53.5	94	4.05	48	0
1980	66.2	73	76.8	77	55.6	61	7.22	12	0
1979	66.3	71	79	49	53.6	93	0.01	126	0
1978	69.4	22	80.5	25	58.2	21	2.92	68	0
1977	66.2	73	75	99	57.4	38	4.34	41	0
1976	63.5	108	75.4	93	51.6	116	2.56	78	0
1975	61.6	122	71.1	124	52.2	110	2.52	80	0
1974	60	126	71	125	49	125	1.50	106	0
1973	66.5	66	74.7	101	58.2	21	5.85	22	0
1972	66.8	61	76.5	82	57.1	42	2.15	89	0
1971	68.9	28	79.8	34	57.9	33	3.80	53	0
1970	65.3	87	75.1	95	55.4	71	11.64	3	0
1969	64.9	91	75.1	95	54.7	78	3.17	66	0
1968	64.4	100	75.6	90	53.3	95	6.15	16	0
1967	63.2	111	73.4	115	52.9	103	2.78	71	0
1966	63.1	113	73.2	117	53	101	3.62	57	0
1965	64.7	93	73.8	111	55.5	67	6.12	18	0
1964	66.3	71	77.1	71	55.5	67	5.00	32	0
1963	66.5	66	77.6	63	55.3	73	1.27	113	0
1962	63.2	111	74.9	100	51.6	116	3.32	62	0
1961	65.5	83	76.5	82	54.6	81	11.19	4	0
1960	69.3	24	80.5	25	58.1	27	1.50	106	0
1959	66.9	58	77.2	68	56.6	48	5.41	27	0
1958	65.2	88	76.1	86	54.2	84	3.00	67	0
1957	63.5	108	74.7	101	52.4	108	2.27	85	0
1956	65.4	86	78.8	51	52	113	0.56	122	0
1955	67.4	48	79.4	42	55.3	73	2.76	74	0
1954	68.5	33	81.1	20	56	53	1.68	102	0
1953	67.1	55	81.3	16	52.9	103	1.95	94	0
1952	65.5	83	79	49	52	113	1.34	109	0
1951	61.9	120	72.7	121	51	120	1.76	98	0
1950	64.7	93	75.7	88	53.8	89	1.29	112	0
1949	60.1	125	72.8	119	47.4	126	1.39	108	0
1948	68.2	36	79.5	37	56.9	45	4.76	37	0
1947	68.7	30	81	22	56.3	50	4.66	38	0
1946	65.8	78	78.8	51	52.9	103	2.15	89	0
1945	64.5	98	75.1	95	53.8	89	6.14	17	0
1944	66.2	73	76.9	75	55.6	61	3.24	64	0
1943	62.8	117	74.4	104	51.2	118	1.03	118	0
1942	64.4	100	74	108	54.7	78	4.85	35	0
1941	68.6	31	79.3	44	57.9	33	6.27	14	0
1940	68.1	37	80.1	29	56	53	0.15	124	0
1939	72.2	4	84.2	3	60.2	9	0.18	123	0
1938	69.1	26	78.5	53	59.6	14	2.71	76	0
1937	67.6	46	79.7	36	55.6	61	1.13	116	0
1936	70.7	13	79.8	34	61.6	7	10.16	5	0
1935	67.4	48	77.7	61	57	43	4.14	46	0
1934	64.6	95	74.4	104	54.7	78	7.85	10	0
1933	73.4	3	84.8	1	61.9	6	4.25	44	0
1932	65.5	83	76.5	82	54.5	82	1.72	100	0
1931	73.5	2	83.5	6	63.5	1	5.43	25	0
1930	70.3	17	82.2	10	58.4	20	3.42	60	0
1929	65.8	78	75.6	90	56	53	3.34	61	0
1928	63	114	74.2	107	51.7	115	4.94	34	0
1927	71.2	9	82.3	9	60	11	2.32	84	0
1926	66.4	68	74.6	103	58.2	21	14.30	1	0
1925	71.5	6	81	22	62.1	5	8.24	8	0
1924	61.3	123	71.3	123	51.2	118	2.85	70	0
1923	67.3	51	76.6	80	58	31	3.60	58	0
1922	70	20	81.2	17	58.8	16	2.14	91	0
1921	70.8	11	81.2	17	60.4	8	5.20	28	0
1920	70	20	81.8	14	58.1	27	4.01	50	0
1919	70.5	16	82.9	8	58	31	4.52	39	0
1918	60.7	124	72.3	122	49.1	124	2.36	83	0
1917	65	90	77	74	53	101	5.55	24	0
1916	64.6	95	77.1	71	52.1	111	4.18	45	0
1915	68.1	37	78	56	58.1	27	5.43	25	0
1914	66.4	68	77.2	68	55.6	61	5.91	21	0
1913	66.6	64	79.4	42	53.9	88	1.54	104	0
1912	67.3	51	79.1	46	55.4	71	2.56	78	0
1911	68	41	79.1	46	56.9	45	13.17	2	0
1910	65.8	78	77.7	61	53.8	89	2.77	72	0
1909	65.1	89	76.8	77	53.3	95	4.47	40	0
1908	70.2	18	83.6	5	56.7	47	3.55	59	1
1907	66.2	73	78	56	54.3	83	1.89	96	0
1906	71.4	8	83.9	4	58.8	16	5.13	30	0
1905	68.9	28	79.1	46	58.7	18	2.90	69	0
1904	67.3	51	77.4	67	57.2	40	3.98	51	0
1903	66	77	76.2	85	55.9	57	5.81	23	1
1902	62.6	118	72.8	119	52.3	109	2.77	72	0
1901	67.7	44	79.5	37	55.8	59	2.26	86	0
1899	65.6	82	80.1	29	51	120	2.37	82	1
1897									18

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1998	73.7
1931	73.5
1933	73.4
2019	72.2
1939	72.2
2026	71.5
1925	71.5
1906	71.4
1927	71.2
2015	71

Coldest
Year	Mean, °F
1974	60
1949	60.1
1918	60.7
1924	61.3
1975	61.6
1993	61.7
1951	61.9
2003	62.2
1902	62.6
1943	62.8

Wettest
Year	Precipitation, in
1926	14.30
1911	13.17
1970	11.64
1961	11.19
1936	10.16
2008	8.71
1986	8.53
1925	8.24
2019	8.23
1934	7.85

Driest
Year	Precipitation, in
1979	0.01
2017	0.13
1940	0.15
1939	0.18
1956	0.56
2024	0.61
2002	0.84
2009	1.01
1943	1.03
2015	1.09

The hottest, coldest and wettest days

Hottest day: 97°F; 1 September 2026
Coldest night: 49°F; 29 September 2026
Wettest day: 1.23 in; 9 September 2026

Every month, season and year

Months

Seasons

Years

Burlington, IA the day's answers

All-time records

Every answer in words

September 2026 brought 4.28 in of precipitation in Burlington, IA, the wettest September since 2022 (2025 excluded: 10 of 30 days missing), 43rd wettest of 126.
The hottest day of September 2026 in Burlington, IA: 97°F on Tuesday 1 September 2026.
The coldest night of September 2026 in Burlington, IA: a low of 49°F on Tuesday 29 September 2026.
The wettest day of September 2026 in Burlington, IA: 1.23 in on Wednesday 9 September 2026.