Quincy, IL: May

31 May 2026: May 2026 averaged 63.9°F in Quincy, IL, the coldest May since 2025, tied 62nd coldest of 126 (with 1950 and 1948).

May 2026

Mean temperature: 63.9°F; Coldest since 2025; 62nd coldest of 126
Precipitation: 2.74 in; Driest since 2023; 40th driest of 126

A normal May in Quincy, IL (1991 to 2020): a mean temperature of 63.2°F, between 59.9°F and 67.6°F in eight years of ten and 3.92 in of precipitation, between 1.36 in and 9.69 in in eight years of ten.

The mean temperature of every May in Quincy, IL since 1901: 63.9°F in 2026; the lowest is 57°F, in 1907.

Normal range, 59.9 to 67.6°F

Every year, ranked, as a table

Every May in Quincy, IL from 1901 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	63.9	63	74.4	60	53.3	64	2.74	87	0
2025	63.5	66	73.8	69	53.1	69	3.36	74	0
2024	67.6	18	77.7	24	57.5	14	4.81	44	0
2023	65.7	36	77.5	25	53.9	53	2.09	103	0
2022	65.8	35	75.6	47	55.9	32	3.23	76	1
2021	61.5	92	70.2	104	52.7	76	4.83	43	0
2020	61	100	69.6	112	52.3	80	3.84	66	0
2019	63.2	74	72.5	85	53.9	53	6.92	16	0
2018	72.9	1	83.6	2	62.2	1	1.57	113	0
2017	63.3	71	73.5	73	53.2	68	4.74	47	0
2016	62.7	82	72.6	82	52.8	73	3.64	69	0
2015	65.1	44	74.2	62	56.1	30	3.99	63	0
2014	65.1	44	75.2	53	55.1	38	2.16	100	0
2013	63.4	67	72.9	78	54	51	11.39	3	0
2012	69	10	80.1	10	57.9	11	1.33	121	0
2011	62.8	79	72.4	87	53.1	69	4.70	48	0
2010	63.4	67	72.7	80	54.2	50	4.22	57	0
2009	63.2	74	73.6	71	52.8	73	5.23	37	0
2008	59.9	110	69.9	108	49.9	105	4.38	53	0
2007	67.5	20	77.4	27	57.6	12	1.67	110	0
2006	63	77	72.7	80	53.3	64	1.36	120	0
2005	62.2	86	73.5	73	51	94	1.07	123	0
2004	66.1	31	75.9	42	56.4	25	4.13	58	0
2003	61.4	96	71.3	98	51.5	89	2.38	96	0
2002	59.8	112	69.7	110	49.8	107	8.44	8	0
2001	64.3	52	73.9	68	54.7	43	4.78	45	0
2000	65.6	37	75.7	45	55.6	36	3.42	72	0
1999	63.4	67	72.6	82	54.3	48	3.50	70	0
1998	67.3	22	76.2	37	58.5	8	5.35	34	0
1997	57.9	122	67.7	121	48	121	3.37	73	0
1996	61.9	88	70.5	102	53.3	64	9.63	5	0
1995	58.7	116	67.1	124	50.3	101	10.26	4	0
1994	61.3	99	72.3	89	50.3	101	2.96	83	0
1993	62.9	78	72.1	92	53.7	57	2.35	97	0
1992	61	100	72.1	92	49.8	107	0.45	125	0
1991	68.4	16	76.6	31	60.1	4	13.26	2	0
1990	58.4	118	67.4	123	49.4	112	7.79	11	0
1989	60.7	104	72	94	49.4	112	2.71	90	0
1988	65.1	44	78.6	18	51.6	87	2.05	107	0
1987	68.9	11	80.6	9	57.2	18	3.17	77	0
1986	64.6	49	74	67	55.3	37	4.27	54	0
1985	65.3	41	75.8	44	54.7	43	2.99	82	0
1984	61.4	96	71.7	96	51	94	5.50	30	0
1983	58.3	120	68	120	48.6	118	3.77	67	0
1982	66.3	30	75.5	49	57.2	18	4.78	45	0
1981	57.5	123	66.8	125	48.3	120	6.87	17	0
1980	65.6	37	74.8	55	56.4	25	3.91	64	0
1979	64	60	74.5	58	53.5	59	2.25	99	0
1978	61.5	92	70.1	106	52.8	73	7.99	10	0
1977	68.5	14	78.5	20	58.6	7	4.13	58	0
1976	60.1	107	70.5	102	49.7	109	4.99	39	0
1975	66.1	31	75.9	42	56.3	29	5.36	33	0
1974	61.5	92	69.5	113	53.5	59	7.56	13	0
1973	60.3	105	70	107	50.6	99	7.59	12	0
1972	64.3	52	75.5	49	53	71	1.61	112	0
1971	59.6	113	70.2	104	49	115	3.03	81	0
1970	66	34	76.1	38	55.9	32	4.96	40	0
1969	63.1	76	72.8	79	53.3	64	5.71	29	0
1968	59.6	113	69.3	115	49.9	105	5.44	31	0
1967	57.4	124	66.8	125	47.9	123	5.80	27	0
1966	58.4	118	69.1	116	47.6	124	6.02	26	0
1965	67.6	18	78.1	23	57.1	20	1.63	111	0
1964	67.5	20	78.3	21	56.8	22	1.51	115	0
1963	62.8	79	73.2	75	52.4	78	4.85	42	0
1962	71.2	4	81.9	5	60.5	2	6.13	25	0
1961	58.5	117	69	117	48	121	4.50	49	0
1960	60	109	69.9	108	50.2	104	5.26	36	0
1959	66.7	29	77.1	29	56.4	25	4.12	60	0
1958	64.1	57	75.6	47	52.5	77	2.73	88	0
1957	62.8	79	72.6	82	53	71	6.37	21	0
1956	65	47	76.4	35	53.7	57	1.43	116	0
1955	64.4	50	75.5	49	53.4	62	6.20	23	1
1954	57.1	125	68.4	119	45.9	125	2.48	94	0
1953	62.4	85	73.6	71	51.2	91	1.78	109	0
1952	61.5	92	72.2	90	50.7	98	4.00	62	0
1951	64.1	57	76.5	32	51.6	87	1.97	108	0
1950	63.9	63	75.3	52	52.4	78	2.07	106	0
1949	65.5	39	76.5	32	54.5	46	3.15	78	0
1948	63.9	63	76.1	38	51.7	85	3.07	79	0
1947	61.4	96	72.5	85	50.3	101	4.39	52	0
1946	61.8	89	72	94	51.5	89	6.42	19	0
1945	59.2	115	69.7	110	48.7	116	4.23	56	1
1944	70.1	5	80.8	8	59.5	5	2.84	86	1
1943	61	100	71.2	99	50.9	96	8.17	9	0
1942	63.3	71	74.4	60	52.2	82	4.42	51	0
1941	68.9	11	81.8	6	56.1	30	1.42	117	0
1940	62.2	86	74.8	55	49.7	109	1.25	122	0
1939	67	26	79	17	55.1	38	2.72	89	0
1938	64.2	54	74.5	58	53.9	53	6.36	22	0
1937	66.9	28	77	30	56.8	22	2.54	93	0
1936	71.5	3	82.6	3	60.3	3	2.39	95	0
1935	60.1	107	68.5	118	51.7	85	13.70	1	0
1934	71.8	2	84.5	1	59.2	6	1.42	117	0
1933	66.1	31	75	54	57.3	17	6.94	15	0
1932	68	17	79.7	13	56.4	25	1.57	113	0
1931	61.8	89	71.6	97	52	84	5.08	38	0
1930	67	26	77.5	25	56.5	24	2.70	91	0
1929	63.3	71	73.1	76	53.5	59	5.73	28	0
1928	67.1	25	79.2	16	55	40	2.10	102	0
1927	64.2	54	74.1	65	54.3	48	4.50	49	0
1926	69.3	6	81.2	7	57.4	16	2.08	104	0
1925	62.6	83	74.8	55	50.5	100	2.32	98	0
1924	60.2	106	71.2	99	49.1	114	3.85	65	0
1923	64.7	48	76	40	53.4	62	3.25	75	0
1922	69.2	7	79.9	11	58.5	8	2.92	84	0
1921	68.7	13	79.8	12	57.5	14	2.58	92	0
1920	64	60	74.2	62	53.9	53	4.93	41	0
1919	64	60	73.1	76	54.8	42	9.50	6	0
1918	67.2	24	77.4	27	57.1	20	5.39	32	0
1917	58.2	121	67.7	121	48.7	116	4.25	55	0
1916	64.4	50	73.8	69	54.9	41	8.92	7	0
1915	61.8	89	72.4	87	51.1	92	6.17	24	1
1914	67.3	22	78.6	18	55.9	32	0.90	124	0
1913	65.2	43	75.7	45	54.6	45	2.90	85	0
1912	69.2	7	79.5	14	58.5	8	3.44	71	1
1911	69.1	9	82.5	4	55.7	35	1.42	117	0
1910	59.9	110	71.1	101	48.6	118	6.62	18	0
1909	61	100	72.2	90	49.7	109	7.46	14	1
1908	64.1	57	74.2	62	54	51	6.40	20	0
1907	57	126	69.5	113	44.6	126	2.14	101	0
1906	65.3	41	78.3	21	52.3	80	2.08	104	0
1905	64.2	54	76.4	35	52.1	83	3.04	80	0
1904	62.5	84	74.1	65	51.1	92	5.27	35	1
1903	65.5	39	76.5	32	54.5	46	3.68	68	0
1902	68.5	14	79.5	14	57.6	12	4.10	61	0
1901	63.4	67	76	40	50.9	96	0.45	125	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2018	72.9
1934	71.8
1936	71.5
1962	71.2
1944	70.1
1926	69.3
1922	69.2
1912	69.2
1911	69.1
2012	69

Coldest
Year	Mean, °F
1907	57
1954	57.1
1967	57.4
1981	57.5
1997	57.9
1917	58.2
1983	58.3
1990	58.4
1966	58.4
1961	58.5

Wettest
Year	Precipitation, in
1935	13.70
1991	13.26
2013	11.39
1995	10.26
1996	9.63
1919	9.50
1916	8.92
2002	8.44
1943	8.17
1978	7.99

Driest
Year	Precipitation, in
1992	0.45
1901	0.45
1914	0.90
2005	1.07
1940	1.25
2012	1.33
2006	1.36
1941	1.42
1934	1.42
1911	1.42

The hottest, coldest and wettest days

Hottest day: 87°F; 28 May 2026
Coldest night: 37°F; 1 May 2026
Wettest day: 1.05 in; 18 May 2026

Every month, season and year

Months

Seasons

Years

Quincy, IL the day's answers

All-time records

Every answer in words

May 2026 brought 2.74 in of precipitation in Quincy, IL, the driest May since 2023, 40th driest of 126.
The hottest day of May 2026 in Quincy, IL: 87°F on Thursday 28 May 2026.
The coldest night of May 2026 in Quincy, IL: a low of 37°F on Friday 1 May 2026.
The wettest day of May 2026 in Quincy, IL: 1.05 in on Monday 18 May 2026.