Spencer, IA: Summer

31 August 2026: Summer 2026 averaged 71°F in Spencer, IA, the coldest summer since 2017, tied 43rd coldest of 105 (with 2013, 1999, 1977 and 1 other year).

Summer 2026

Mean temperature: 71°F; Coldest since 2017; 43rd coldest of 105
Precipitation: 7.09 in; Driest since 2020; 12th driest of 105

A normal summer in Spencer, IA (1991 to 2020): a mean temperature of 71°F, between 68.9°F and 72.9°F in eight years of ten and 9.91 in of precipitation, between 7.27 in and 14.68 in in eight years of ten.

The mean temperature of every summer in Spencer, IA since 1896: 71°F in 2026; the lowest is 65.6°F, in 1915.

Normal range, 68.9 to 72.9°F

Every year, ranked, as a table

Every summer in Spencer, IA 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	71	59	83.1	56	58.8	62	7.09	94	0
2025	71.8	41	82.5	68	61.1	13	16.45	10	0
2024	72.4	28	83.5	45	61.2	11	15.19	13	0
2023	72.6	23	84.8	24	60.3	28	8.36	80	0
2022	72.9	19	85.4	19	60.3	28	9.48	71	0
2021	73.2	13	86.3	13	60.3	28	10.68	53	1
2020	74.3	5	87.6	6	61.1	13	4.76	102	0
2019	71.6	45	82.6	65	60.6	21	7.69	87	1
2018	72.5	27	83.5	45	61.5	5	10.71	52	3
2017	70.6	66	83.4	48	57.7	84	9.74	63	0
2016	71.5	48	83.2	53	59.9	36	11.40	46	0
2015	69.9	79	81.8	81	58	78	10.79	50	0
2014	68.6	94	79.1	100	58.1	76	18.28	7	6
2013	71	59	82.9	58	59.1	56	7.25	92	0
2012	73.7	10	86.6	11	60.8	19	7.35	90	0
2011	72.8	20	83.6	43	62	3	13.62	22	0
2010	72.2	31	82.9	58	61.4	8	18.28	7	2
2009	66.8	103	78.6	101	55	102	9.49	70	1
2008	69.6	84	82	76	57.1	90	9.59	68	1
2007	71.8	41	83.7	41	59.8	40	12.96	29	0
2006	72.1	37	84.7	27	59.6	45	9.87	61	0
2005	72.7	22	84.3	32	61	15	7.99	84	0
2004	67.3	101	79.5	97	55.1	101	8.35	81	0
2003	70.2	75	82.6	65	57.8	82	9.04	75	0
2002	72.4	28	83.8	38	61	15	12.77	32	1
2001	71.1	56	82.6	65	59.5	49	5.97	99	2
2000	69.5	87	80.9	90	58.1	76	9.91	60	1
1999	71	59	81.9	79	60	35	13.44	24	2
1998	69.6	84	80.1	94	59.1	56	7.62	88	0
1997	70.7	65	82.1	73	59.4	51	7.28	91	0
1996	69.7	82	81	88	58.4	67	12.35	39	3
1995	73.2	13	83.9	35	62.4	2	11.59	43	1
1994	69	90	79.4	98	58.5	65	13.78	20	0
1993	69.1	88	77.9	102	60.3	28	23.76	1	0
1992									31
1991	71.8	41	82.1	73	61.6	4	10.46	54	0
1990	71.2	53	82	76	60.4	25	12.87	30	0
1989	71.1	56	83.2	53	59	60	8.92	76	0
1988	73.9	8	86.6	11	61.2	11	9.70	64	0
1987	72	40	83.8	38	60.4	25	15.36	12	1
1986	70.6	66	81.3	85	59.8	40	15.03	14	0
1985	68	100	79.3	99	56.6	92	9.69	66	0
1984	71.7	44	82.9	58	60.6	21	14.40	15	0
1983	73.9	8	85	23	62.8	1	13.39	26	0
1982	69.1	88	80.1	94	58.2	72	13.75	21	1
1981									31
1979									30
1978	71.2	53	82.9	58	59.5	49	13.92	19	0
1977	71	59	83.8	38	58.2	72	10.00	59	0
1976	71	59	84.7	27	57.3	88	4.50	103	0
1975	72.2	31	83.4	48	60.9	18	18.89	4	0
1974	70.8	64	83.4	48	58.3	69	7.55	89	0
1973									61
1972									31
1971	70.5	68	82.8	64	58	78	12.83	31	1
1970	71.3	50	83	57	59.6	45	5.45	101	0
1969									30
1968	70.3	73	82.2	71	58.5	65	11.31	47	0
1967	68.4	95	80.2	93	56.6	92	9.26	72	0
1966	70.4	71	82.5	68	58.3	69	7.10	93	0
1965	69.9	79	81.6	84	58.2	72	7.79	85	0
1964	70.5	68	81.9	79	59.2	55	14.35	16	0
1963	71.6	45	83.3	52	59.9	36	10.16	56	0
1962	68.8	91	80.3	92	57.4	85	18.56	5	0
1961	70	78	81.8	81	58.3	69	9.70	64	0
1960	69.6	84	81.3	85	58	78	8.45	79	0
1959	72.3	30	84.2	33	60.4	25	7.06	96	0
1958	68.3	96	80.5	91	56.1	97	7.07	95	0
1957	71.2	53	82.9	58	59.6	45	10.10	57	0
1956	71.3	50	83.5	45	59.1	56	12.51	36	0
1955	73	18	85.4	19	60.6	21	8.54	77	0
1954									31
1953	71.1	56	83.2	53	59	60	13.41	25	0
1952	69.8	81	82.3	70	57.4	85	12.58	34	0
1951	66.9	102	77.1	104	56.6	92	19.13	3	0
1950									29
1949									32
1948	69.7	82	82.1	73	57.4	85	10.92	49	0
1947	70.3	73	82.9	58	57.8	82			0
1946	68.1	97	80	96	56.3	95			0
1945	66.7	104	77.6	103	55.9	98	11.56	44	1
1944	70.4	71	81	88	59.9	36	20.37	2	2
1943	73.1	16	84.8	24	61.3	9	18.31	6	0
1942	71.5	48	83.6	43	59.3	52	13.95	18	0
1941	72.8	20	84.7	27	60.6	21	11.95	41	2
1940	71.6	45	83.7	41	59.6	45	12.44	37	0
1939	72.1	37	84.8	24	59.3	52	14.20	17	0
1938	73.2	13	86.1	14	60.3	28	11.54	45	0
1937	74	7	87.2	9	61	15	13.49	23	1
1936	77.1	1	92.7	1	61.5	5	8.22	82	0
1935	72.6	23	85.9	16	59.3	52	13.28	27	0
1934	73.5	11	87.3	8	59.7	43	16.10	11	1
1933	74.2	6	88.7	3	59.8	40	9.69	66	1
1932	73.4	12	86	15	60.7	20	9.26	72	1
1931	74.8	2	88.2	4	61.5	5	9.76	62	1
1930	74.4	4	88.9	2	59.9	36	5.57	100	1
1929	72.2	31	85.6	18	58.7	64	6.52	97	1
1928	70.1	76	83.4	48	56.9	91	12.97	28	1
1927	68.1	97	81.8	81	54.4	105	4.40	104	1
1926	71.3	50	84.5	31	58	78	12.54	35	0
1925	72.6	23	87	10	58.2	72	7.71	86	0
1924	68.8	91	82	76	55.6	99	10.93	48	0
1923	72.2	31	84.7	27	59.7	43	10.43	55	3
1922	72.2	31	85.9	16	58.4	67	11.82	42	0
1921	74.6	3	87.9	5	61.3	9	6.27	98	1
1920							12.39	38	16
1919	72.6	23	85.1	22	60.1	33	12.59	33	1
1915	65.6	105	76.7	105	54.5	104	8.19	83	0
1914	72.1	37	84.2	33	60.1	33	9.07	74	5
1913	72.2	31	85.3	21	59.1	56	10.07	58	6
1912	68.1	97	81.1	87	55	102	8.53	78	0
1911	73.1	16	87.5	7	58.8	62	3.88	105	0
1899							12.29	40	13
1898	70.5	68	83.9	35	57.2	89	17.01	9	1
1897	68.8	91	82.2	71	55.3	100	10.77	51	0
1896	70.1	76	83.9	35	56.2	96	9.51	69	0
1895									36

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1936	77.1
1931	74.8
1921	74.6
1930	74.4
2020	74.3
1933	74.2
1937	74
1988	73.9
1983	73.9
2012	73.7

Coldest
Year	Mean, °F
1915	65.6
1945	66.7
2009	66.8
1951	66.9
2004	67.3
1985	68
1946	68.1
1927	68.1
1912	68.1
1958	68.3

Wettest
Year	Precipitation, in
1993	23.76
1944	20.37
1951	19.13
1975	18.89
1962	18.56
1943	18.31
2014	18.28
2010	18.28
1898	17.01
2025	16.45

Driest
Year	Precipitation, in
1911	3.88
1927	4.40
1976	4.50
2020	4.76
1970	5.45
1930	5.57
2001	5.97
1921	6.27
1929	6.52
1959	7.06

The hottest, coldest and wettest days

Hottest day: 96°F; 27 July 2026, 20 July 2026
Coldest night: 43°F; 15 June 2026
Wettest day: 1.77 in; 28 June 2026

Every month, season and year

Months

Seasons

Years

Spencer, IA the day's answers

All-time records

Every answer in words

Summer 2026 brought 7.09 in of precipitation in Spencer, IA, the driest summer since 2020, 12th driest of 105.
The hottest day of summer 2026 in Spencer, IA: 96°F on Monday 27 July 2026 and Monday 20 July 2026.
The coldest night of summer 2026 in Spencer, IA: a low of 43°F on Monday 15 June 2026.
The wettest day of summer 2026 in Spencer, IA: 1.77 in on Sunday 28 June 2026.