Sisseton, SD: 2026

10 October 2026: 2026 so far averaged 50.5°F in Sisseton, SD, the warmest 1 January to 10 October since 2024, 13th warmest of 90.

2026 so far, to 10 October 2026

Mean temperature: 50.5°F; Warmest since 2024; 13th warmest of 90
Precipitation: 17.96 in; Driest since 2022; 32nd driest of 89

A normal 1 January to 10 October in Sisseton, SD (1991 to 2020): a mean temperature of 47.7°F, between 45.4°F and 50.4°F in eight years of ten and 20.02 in of precipitation, between 14.02 in and 25.98 in in eight years of ten.

The mean temperature of every 1 January to 10 October in Sisseton, SD since 1934: 50.5°F in 2026; the highest is 54.5°F, in 1934.

Normal range, 45.4 to 50.4°F

Every year, ranked, as a table

Every 1 January to 10 October in Sisseton, SD from 1931 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	50.5	13	62.1	15	38.9	16	17.96	57	0
2025	49.3	29	60.8	29	37.7	30	22.82	18	0
2024	51.7	7	62.4	11	41	2	19.81	40	0
2023	48.9	37	60.5	34	37.3	39	22.30	23	0
2022	48.7	39	60.1	42	37.2	42	17.94	59	1
2021	52.2	3	63.8	5	40.7	3	23.21	17	0
2020	48.6	41	59.5	47	37.7	30	11.45	87	0
2019	44.5	89	53.9	91	35.2	76	31.38	1	0
2018	47.4	62	57.9	71	37	45	20.58	36	0
2017	50.1	16	61.5	21	38.7	19	17.99	55	0
2016	50.9	9	62.2	13	39.6	10	18.49	50	0
2015	49.3	29	61	25	37.5	34	14.77	75	0
2014	45.5	84	56.3	84	34.8	82	21.80	27	0
2013	45.8	83	56.4	83	35.1	77	23.52	14	2
2012	52.2	3	64.4	4	39.9	8	13.71	80	1
2011	46.2	80	56.1	85	36.2	61	21.57	29	7
2010	48.5	45	58.7	58	38.4	22	22.07	25	0
2009	45	86	55.7	88	34.3	86	19.95	39	0
2008	46	81	57.4	78	34.6	85	20.08	37	0
2007	49.1	35	59.4	48	38.8	17	22.42	22	0
2006	50.7	12	60.9	26	40.5	6	19.77	42	0
2005	49.3	29	60.3	38	38.4	22	23.25	16	0
2004	47.1	69	58.4	64	35.7	70	20.69	35	2
2003	47.3	64	59.1	52	35.6	73	15.06	73	4
2002	48.1	51	59.2	51	37	45	18.76	48	4
2001	46.9	71	57.5	76	36.3	59	19.14	47	7
2000	48.5	45	60.3	38	36.8	48	17.96	57	1
1999	47.7	55	58.5	61	36.8	48	14.05	78	10
1998	50.4	14	60.5	34	40.3	7	23.56	13	5
1997	46.8	74	57.7	75	35.8	69	12.66	82	16
1996	44.7	88	55	89	34	87	18.01	54	18
1995	47.7	55	57.3	80	38.1	28	27.07	6	17
1994	46.9	71	57.2	81	36.5	55	20.78	34	11
1993	45.4	85	56	86	34.9	79	25.86	10	7
1992	49.8	21	60.6	33	38.7	19	15.68	69	10
1991	50.3	15	61.4	24	39.3	13	27.45	4	6
1990	50.8	11	62.4	11	39.2	14	18.35	53	2
1989	47.5	59	58.5	61	36.2	61	20.80	33	7
1988	50.1	16	62.8	9	37.5	34	16.98	63	5
1987	53.7	2	65.3	3	41.5	1	13.01	81	9
1986	49.3	29	59.1	52	39.1	15	30.32	2	11
1985	48.4	47	59.9	43	37.4	37	16.13	67	15
1984	49.5	26	59.7	46	39.7	9	21.59	28	10
1983	51.2	8	62	16	40.7	3	15.04	74	4
1982	46.8	74	58	70	34.9	79	17.20	61	11
1981	50.9	9	63.5	8	38.5	21	16.74	65	7
1980									35
1979	43.5	90	54.2	90	32.7	91	21.34	30	4
1978	46.5	77	57	82	36.1	66	19.46	45	5
1977	49.6	24	60.7	30	38.2	26	24.83	12	5
1976	52.2	3	66.2	2	38.4	22	8.06	89	6
1975	47.3	64	59.3	50	35.6	73	20.99	32	11
1974	47.7	55	60.3	38	35	78	12.61	83	3
1973	52.1	6	63.6	6	40.6	5	15.39	71	0
1972	47.5	59	58.8	57	36.2	61	18.58	49	0
1971	48.8	38	60.9	26	36.7	51	19.23	46	3
1970	48.6	41	60.4	36	36.4	58	14.34	77	5
1969	46.5	77	58.5	61	34.8	82	14.67	76	10
1968	49.7	23	61.9	17	36.6	52	22.02	26	8
1967	47.2	66	60.2	41	34.7	84	19.76	43	9
1966	46.6	76	58.3	67	34.9	79	16.94	64	1
1965	44.9	87	55.9	87	33.8	89	27.04	8	1
1964	49.5	26	61.5	21	37.6	32	19.60	44	0
1963	50.1	16	61.8	18	38.4	22	17.47	60	2
1962	47.2	66	57.5	76	36.6	52	29.69	3	9
1961	49.8	21	62.2	13	37.8	29	18.40	51	14
1960	47.7	55	58.9	55	36.5	55	17.98	56	3
1959	49.6	24	61.8	18	37.1	43	13.77	79	3
1958	48.6	41	61.5	21	36.1	66	12.37	84	8
1957	47.2	66	58.7	58	35.7	70	26.28	9	0
1956	46	81	57.8	72	34	87	17.20	61	12
1955	49.9	20	62.7	10	37.1	43	16.16	66	7
1954	47.4	62	58.7	58	36.2	61	23.46	15	2
1953	48.4	47	59.9	43	36.8	48	22.27	24	2
1952	47.9	53	60.4	36	35.3	75	10.80	88	3
1951									59
1950									168
1949	48.6	41	60.7	30	36.3	59	15.96	68	2
1948	47.5	59	57.8	72	36.5	55	22.52	21	7
1947	48	52	58.4	64	37.3	39	15.45	70	2
1946	49.2	34	60.7	30	37.3	39	22.66	20	6
1945	47	70	57.4	78	36.9	47	21.07	31	2
1944	48.3	49	58.2	68	38.2	26	22.71	19	2
1943	46.9	71	57.8	72	35.7	70	19.80	41	10
1942	49.3	29	59.8	45	38.8	17	27.42	5	4
1941	49.1	35	59.1	52	39.4	12	27.07	6	4
1940	48.2	50	58.9	55	36.6	52			9
1939	49.5	26	60.9	26	37.4	37	20.01	38	4
1938	50	19	61.7	20	37.5	34			10
1937	48.7	39	58.2	68	36.2	61	25.12	11	19
1936	46.3	79	58.4	64	33.2	90	11.72	86	8
1935	47.8	54	59.4	48	36	68			5
1934	54.5	1	69.4	1	37.6	32	12.02	85	20
1933			63.6	6			15.22	72	31
1932					39.6	10	18.36	52	41
1931									273

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1934	54.5
1987	53.7
2021	52.2
2012	52.2
1976	52.2
1973	52.1
2024	51.7
1983	51.2
2016	50.9
1981	50.9

Coldest
Year	Mean, °F
1979	43.5
2019	44.5
1996	44.7
1965	44.9
2009	45
1993	45.4
2014	45.5
2013	45.8
2008	46
1956	46

Wettest
Year	Precipitation, in
2019	31.38
1986	30.32
1962	29.69
1991	27.45
1942	27.42
1995	27.07
1941	27.07
1965	27.04
1957	26.28
1993	25.86

Driest
Year	Precipitation, in
1976	8.06
1952	10.80
2020	11.45
1936	11.72
1934	12.02
1958	12.37
1974	12.61
1997	12.66
1987	13.01
2012	13.71

The hottest, coldest and wettest days

Hottest day: 94°F; 26 July 2026, 28 May 2026, 26 May 2026, 25 May 2026
Coldest night: -19°F; 23 January 2026
Wettest day: 2.89 in; 30 July 2026

Month by month

Month	Mean temperature	Precipitation
January	13.3°F 43rd warmest of 91	0.08 in 12th driest of 89
February	26.5°F 12th warmest of 84	0.41 in 37th driest of 93
March	34.5°F 24th warmest of 91	0.50 in 19th driest of 92
April	42.5°F 28th coldest of 92	2.19 in 44th wettest of 94
May	57.3°F 40th coldest of 91	1.94 in 38th driest of 94
June	68.4°F 27th warmest of 92	1.96 in 22nd driest of 93
July	74.5°F 21st warmest of 90	8.20 in 2nd wettest of 92
August	68.7°F 30th coldest of 94	0.23 in 3rd driest of 96
September	64.7°F 7th warmest of 93	2.42 in 33rd wettest of 94
October so far	57.9°F 19th warmest of 93	0.03 in 26th driest of 95

Hot days and freezes

Sisseton, SD has had 19 days at 90°F or above in 2026 through 10 October, the most by that date since 2023, tied 37th most of 91 (with 2012 and 2002).
Sisseton, SD has had 109 freezing nights (a low of 32°F or below) in 2026 through 10 October, the most by that date since 2023, tied 27th most of 91 (with 1979 and 1960).
The last freeze of spring 2026 in Sisseton, SD came on Monday 11 May 2026, the latest since 2021, tied 56th latest of 90 (with 2021, 2008 and 1966).

Daily records set

Date	Record	Value	Before	Check
25 May	Warmest day	94°F	93°F 2018	Provisional
7 May	Coldest night	25°F	26°F 2019, 1976	Provisional
21 March	Warmest day	72°F	70°F 2012, 1945	Provisional
15 February	Warmest day	61°F	51°F 1981	Provisional
14 February	Warmest day	55°F	54°F 1999	Provisional
13 February	Warmest day	56°F	54°F 1983	Provisional
15 January	Warmest day	45°F	44°F 1942	Provisional

Daily records set and not listed: 0

Every month, season and year

Months

Seasons

Years

2025
2026

Sisseton, SD the day's answers

All-time records

Every answer in words

2026 so far brought 17.96 in of precipitation in Sisseton, SD, the driest 1 January to 10 October since 2022, tied 32nd driest of 89 (with 2000).
The hottest day of 2026 so far in Sisseton, SD: 94°F on Sunday 26 July 2026, Thursday 28 May 2026, Tuesday 26 May 2026 and 1 other day.
The coldest night of 2026 so far in Sisseton, SD: a low of -19°F on Friday 23 January 2026.
The wettest day of 2026 so far in Sisseton, SD: 2.89 in on Thursday 30 July 2026.