Wausau, WI: September

30 September 2026: September 2026 averaged 63.1°F in Wausau, WI, the warmest September since 2024, 13th warmest of 120.

September 2026

Mean temperature: 63.1°F; Warmest since 2024; 13th warmest of 120
Precipitation: 3.64 in; Wettest since 2019; 54th wettest of 125

A normal September in Wausau, WI (1991 to 2020): a mean temperature of 60°F, between 56.3°F and 63.3°F in eight years of ten and 3.61 in of precipitation, between 1.39 in and 6.16 in in eight years of ten.

The mean temperature of every September in Wausau, WI since 1897: 63.1°F in 2026; the highest is 65.5°F, in 1908.

Normal range, 56.3 to 63.3°F

Every year, ranked, as a table

Every September in Wausau, WI from 1895 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	63.1	13	73	19	53.2	8	3.64	54	0
2025	62.5	16	73	19	52.1	14	3.30	65	0
2024	64.4	6	77.5	2	51.2	24	1.13	119	0
2023	64.1	8	73.4	18	54.7	2	3.54	59	0
2022	61.9	25	72.4	27	51.3	22	2.65	84	0
2021	63.3	10	75.1	11	51.5	19	1.93	105	0
2020	56.9	93	66.1	106	47.7	74	2.48	86	0
2019	61.7	27	69.8	59	53.5	4	7.66	5	0
2018	60.6	34	70.1	53	51.1	25	5.53	22	0
2017	61.8	26	72.8	21	50.7	31	1.95	103	0
2016	62.3	19	71.3	36	53.3	7	4.77	36	0
2015	64.9	4	75	12	54.8	1	5.21	27	0
2014	57.7	83	68.6	80	46.8	83	5.99	12	0
2013	60.9	31	72.7	22	49.1	54	2.76	79	0
2012	57.7	83	70.6	40	44.7	110	1.61	112	0
2011	57	90	66.8	95	47.1	80	4.39	44	0
2010	56.1	100	66.2	104	46	98	8.41	4	0
2009	61.6	28	73.5	16	49.7	46	0.21	125	0
2008	60.5	37	70.4	46	50.6	33	1.33	117	0
2007	61.3	30	71.6	32	51.1	25	2.69	83	0
2006	56.4	97	66.7	97	46.1	97	1.95	103	0
2005	63.2	12	74.7	15	51.7	18	4.66	39	0
2004	63.8	9	75.4	8	52.1	14	1.97	102	0
2003	59.6	51	70.3	48	49	57	2.26	91	0
2002	61.4	29	71.4	34	51.4	21	5.23	26	0
2001							4.79	33	7
2000	58.4	70	68.7	77	48	66	5.90	14	0
1999	58.6	65	69.6	64	47.6	75	1.28	118	0
1998	64.6	5	76.9	4	52.2	11	3.36	62	0
1997	60	46	69.8	59	50.3	37	4.44	43	0
1996	59.4	53	68.5	81	50.4	36	1.40	116	0
1995	57	90	68.1	86	45.9	102	2.47	87	0
1994	62.2	23	72.3	28	52.2	11	3.58	57	0
1993	52.6	119	62.5	124	42.7	121	4.13	49	0
1992	56.4	97	66.2	104	46.7	86	8.54	3	0
1991	55.7	105	65.3	112	46	98	3.64	54	0
1990	60.4	40	69.9	55	50.9	28	4.11	50	0
1989	57.6	85	69.7	63	45.5	103	1.02	120	0
1988	59.7	50	70.2	49	49.1	54	3.38	61	0
1987	60.2	42	70.6	40	49.9	42	2.34	88	0
1986	58.5	68	66.6	99	50.3	37	9.79	1	0
1985	58.1	73	66.4	101	49.8	44	6.19	11	0
1984	56.1	100	65.9	107	46.3	95	5.06	28	0
1983	59.9	47	69.2	70	50.6	33	4.63	40	0
1982	57.2	88	65.8	108	48.7	60	5.32	23	0
1981	56.2	99	65.8	108	46.5	93	3.54	59	0
1980	57.5	86	67	93	48	66	5.55	21	0
1979	60.1	43	71	38	49.2	52	0.61	122	0
1978	62.3	19	72	29	52.5	10	4.78	35	0
1977	58.9	58	66.4	101	51.3	22	4.70	38	0
1976	57	90	70.6	40	43.4	118	0.90	121	0
1975	54	115	64.2	119	43.9	115	4.83	32	0
1974	52.7	118	63.8	121	41.6	122	1.80	109	0
1973	58.9	58	68.4	84	49.3	51	2.86	73	0
1972	56.9	93	66.7	97	47.1	80	6.92	8	0
1971	60.5	37	69.9	55	51	27	5.27	24	0
1970	59.4	53	68.9	74	49.8	44	5.25	25	0
1969	58.9	58	69.9	55	47.9	70	2.13	96	0
1968	59.4	53	68.7	77	50.1	41	4.79	33	0
1967	58.1	73	70.2	49	46	98	2.05	100	0
1966	57.9	82	69.1	72	46.7	86	1.80	109	0
1965	54.2	114	62.4	125	46	98	8.71	2	0
1964	55.7	105	64.7	117	46.6	89	6.85	9	0
1963	58.7	63	69.4	66	47.9	70	5.89	15	0
1962	55.1	108	65.6	110	44.6	112	4.15	47	0
1961	58.5	68	68.4	84	48.6	61	4.73	37	0
1960	59.4	53	69.2	70	49.6	49	3.02	71	0
1959	59.8	48	70	54	49.7	46	6.93	7	0
1958	58.6	65	68.9	74	48.3	64	3.20	68	0
1957	56	104	67	93	45	109	4.31	46	0
1956	55.1	108	66.4	101	43.9	115	2.06	99	0
1955	58.4	70	70.2	49	46.6	89	2.11	97	0
1954	56.5	96	65.3	112	47.6	75	5.79	16	0
1953	58.8	61	70.8	39	46.7	86	0.55	123	0
1952	58.8	61	72	29	45.5	103	0.43	124	0
1951	54.8	112	65.4	111	44.3	114	3.36	62	0
1950	58	78	69.3	68	46.8	83	1.46	114	0
1949							2.01	101	5
1948	62.3	19	76.6	5	48	66	3.25	67	0
1947			70.4	46					6
1946	56.1	100	67.6	89	44.6	112	5.67	19	0
1945			67.5	90			2.79	78	7
1944	59.1	57	69	73	49	57	4.52	42	2
1943	53.8	116	64.6	118	42.8	120			1
1942	55	111	64.9	115	45.1	108			0
1941	62	24	72.5	26	52	16			1
1940	62.5	16	73.5	16	51.5	19	2.21	94	2
1939	62.8	14	74.8	13	50.7	31	2.81	76	0
1938	60.1	43	70.6	40	49.7	46	7.31	6	0
1937	62.3	19	75.2	10	49.2	52	2.32	89	1
1936	65	3	77.3	3	52.7	9	2.85	75	0
1935	59.5	52	70.6	40	47.9	70	2.58	85	1
1934	58.4	70	68.7	77	48.4	63	5.76	18	2
1933	63.3	10	75.6	7	50.9	28	1.71	111	0
1932	58	78	71.3	36	44.7	110	1.92	106	0
1931	65.4	2	76.1	6	54.6	3	3.70	53	0
1930	60.8	32	72.7	22	48.9	59	2.10	98	0
1929	58.7	63	69.8	59	47.6	75	2.24	93	0
1928	55.1	108	64.9	115	45.2	107	5.64	20	0
1927	60.6	34	69.5	65	51.8	17	4.58	41	0
1926	54.8	112	62.7	123	46.9	82	5.00	29	0
1925	60.7	33	70.5	45	50.9	28	4.87	31	0
1924	53	117	63	122	43	119	1.83	107	0
1923	58	78	67.8	88	48.2	65	3.57	58	0
1922	60.5	37	71.6	32	49.5	50	2.86	73	0
1921	62.4	18	72.7	22	52.2	11	2.71	82	0
1920	60.3	41	72	29	48.6	61	1.44	115	0
1919	59.8	48	69.4	66	50.3	37	2.76	79	0
1918	51.3	120	61.6	126	41	123	1.58	113	0
1917	56.1	100	66.8	95	45.3	106	2.81	76	0
1916	55.2	107	65	114	45.5	103	5.99	12	0
1915	58.1	73	69.3	68	46.8	83	1.83	107	0
1914	58.1	73	68.8	76	48	66	4.88	30	2
1913	58.1	73	69.9	55	46.3	95	4.15	47	3
1912	60.1	43	69.8	59	50.3	37			0
1911			68.5	81	47.4	79	6.48	10	5
1910	58.6	65	70.2	49	46.6	89	3.82	52	1
1909	58	78	68.5	81	47.6	75	3.01	72	0
1908	65.5	1	77.8	1	53.5	4	3.64	54	1
1907	57.3	87	67.1	92	47.8	73	4.38	45	2
1906	64.2	7	74.8	13	53.4	6	3.20	68	1
1905	60.6	34	71.4	34	49.1	54	3.98	51	3
1904			67.2	91	49.9	42	3.29	66	4
1903	57.2	88	67.9	87	46.5	93	5.78	17	0
1902	56.7	95	66.5	100	46.6	89	3.05	70	2
1901									12
1900									15
1899							2.28	90	28
1898							2.19	95	15
1897	62.8	14	75.4	8	50.5	35	2.76	79	2
1896			63.9	120	43.5	117	2.26	91	4
1895			72.7	22			3.33	64	5

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1908	65.5
1931	65.4
1936	65
2015	64.9
1998	64.6
2024	64.4
1906	64.2
2023	64.1
2004	63.8
2021	63.3
More years share the last value

Coldest
Year	Mean, °F
1918	51.3
1993	52.6
1974	52.7
1924	53
1943	53.8
1975	54
1965	54.2
1951	54.8
1926	54.8
1942	55

Wettest
Year	Precipitation, in
1986	9.79
1965	8.71
1992	8.54
2010	8.41
2019	7.66
1938	7.31
1959	6.93
1972	6.92
1964	6.85
1911	6.48

Driest
Year	Precipitation, in
2009	0.21
1952	0.43
1953	0.55
1979	0.61
1976	0.90
1989	1.02
2024	1.13
1999	1.28
2008	1.33
1996	1.40

The hottest, coldest and wettest days

Hottest day: 89°F; 1 September 2026
Coldest night: 40°F; 14 September 2026
Wettest day: 0.94 in; 14 September 2026

Every month, season and year

Months

Seasons

Years

Wausau, WI the day's answers

All-time records

Every answer in words

September 2026 brought 3.64 in of precipitation in Wausau, WI, the wettest September since 2019, tied 54th wettest of 125 (with 1991 and 1908).
The hottest day of September 2026 in Wausau, WI: 89°F on Tuesday 1 September 2026.
The coldest night of September 2026 in Wausau, WI: a low of 40°F on Monday 14 September 2026.
The wettest day of September 2026 in Wausau, WI: 0.94 in on Monday 14 September 2026.