Sisseton, SD: 2025

31 December 2025: 2025 averaged 45.4°F in Sisseton, SD, the warmest year since 2024, tied 24th warmest of 88 (with 1953).

2025

Mean temperature: 45.4°F; Warmest since 2024; 24th warmest of 88
Precipitation: 24.99 in; Wettest since 2023; 22nd wettest of 90

A normal year in Sisseton, SD (1991 to 2020): a mean temperature of 43.8°F, between 41.2°F and 46.5°F in eight years of ten and 23.17 in of precipitation, between 15.95 in and 29.47 in in eight years of ten.

The mean temperature of every year in Sisseton, SD since 1933: 45.4°F in 2025; the highest is 49.6°F, in 1934.

Normal range, 41.2 to 46.5°F

Every year, ranked, as a table

Every year in Sisseton, SD from 1931 to 2025, 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
2025	45.4	24	56.8	25	34	30	24.99	22	0
2024	47.8	4	58	10	37.6	2	22.57	42	0
2023	46	17	57.2	20	34.8	19	28.23	14	0
2022	44.3	46	55.3	45	33.2	51	21.09	47	1
2021	48.2	3	59.4	4	37.1	3	28.98	8	0
2020	45	29	55.8	37	34.2	27	13.59	88	0
2019	40.7	87	49.7	88	31.6	80	35.04	1	0
2018	43	71	53.2	78	32.8	59	23.09	37	0
2017	45.7	20	56.9	23	34.6	23	18.99	65	0
2016	47.2	6	57.9	13	36.4	6	23.55	34	0
2015	46.3	13	57.5	15	35	16	17.93	73	0
2014	41.8	82	52.2	84	31.4	82	23.70	33	0
2013	40.9	86	51.3	87	30.5	88	28.57	11	2
2012	46.9	7	58.6	7	35.3	11	16.75	77	1
2011	43.4	65	53.4	77	33.3	47	22.65	41	7
2010	43.7	61	53.6	74	33.7	36	25.68	19	0
2009	41.3	84	51.5	86	31.2	86	24.27	30	0
2008	41.7	83	52.8	79	30.6	87	24.56	28	0
2007	44.9	35	55.1	49	34.7	20	25.57	20	3
2006	46.6	9	56.9	23	36.2	7	21.08	48	0
2005	46	17	56.6	29	35.3	11	24.85	23	6
2004	44.1	51	54.9	52	33.3	47	23.17	35	2
2003	43.7	61	54.7	54	32.6	62	16.01	79	4
2002	43.8	58	54.4	59	33.1	52	19.40	63	4
2001	44.2	49	54.6	58	33.8	33	20.03	59	7
2000	43.1	69	54.2	63	32.1	69	21.05	49	1
1999	45	29	56.2	34	33.7	36	14.44	84	12
1998	46.5	11	56.3	33	36.7	4	29.80	6	5
1997	43.2	68	53.5	75	32.9	56	15.38	80	18
1996	39.9	88	49.7	88	29.7	91	24.65	27	24
1995	43.4	65	52.5	83	33.8	33	29.43	7	28
1994	44.1	51	54.1	65	34.1	28	23.17	35	16
1993	42.4	79	52.6	82	32	70	32.30	2	17
1992	44.4	43	54.7	54	34	30	18.45	69	12
1991					36.5	5	27.61	15	39
1990	46.6	9	58	10	34.9	17	19.56	61	5
1989	43	71	54	68	31.7	76	21.75	44	10
1988	45.5	21	57.5	15	33.5	44	19.52	62	5
1987	49.1	2	60	2	37.8	1	14.60	83	14
1986	45.5	21	55.4	44	35.3	11	31.35	4	15
1985	42.5	78	53.9	69	31.8	74	20.20	57	18
1984	45.5	21	55.6	40	35.2	14	26.47	17	20
1983	45.1	27	55.1	49	35.4	10	18.02	72	5
1982	43.4	65	54.3	60	32	70	18.59	67	13
1981	46.5	11	58.3	8	34.7	20	18.99	65	9
1980			58.9	5	34.6	23	13.97	85	38
1979	41	85	51.7	85	30.3	89	24.69	25	5
1978	42.3	80	52.8	79	31.8	74	21.01	50	9
1977	44.6	39	55.2	47	33.7	36	31.47	3	6
1976	46.2	14	59.5	3	33	54	8.77	90	6
1975	43.9	56	55.6	40	32.5	65	23.02	38	13
1974	44.9	35	57.2	20	32.6	62	13.93	86	6
1973	47.3	5	58.3	8	36	9	17.10	74	3
1972	42.8	74	53.5	75	31.9	72	21.42	45	2
1971	44.4	43	56	36	32.9	56	24.68	26	3
1970	44.3	46	55.5	43	32.6	62	18.46	68	8
1969	42.9	73	54.1	65	31.9	72	16.99	76	11
1968	45	29	56.5	31	32.9	56	27.42	16	8
1967	43.5	64	56.2	34	31.3	83	20.68	53	10
1966	42.8	74	54.1	65	31.3	83	19.13	64	2
1965	42.7	76	53.7	72	31.6	80	28.85	10	2
1964	44.9	35	56.8	25	33	54	20.34	55	3
1963	46.1	15	57.6	14	34.7	20	19.88	60	2
1962	44.3	46	54.7	54	33.7	36	30.51	5	9
1961	45.1	27	57.3	18	33.4	46	20.26	56	14
1960	44.1	51	55.3	45	32.8	59	20.85	51	8
1959	45.3	26	56.6	29	33.7	36	17.01	75	4
1958	44.6	39	57.3	18	32.4	67	14.75	82	8
1957	44.2	49	55.2	47	33.3	47	28.97	9	2
1956									79
1955	43.9	56	56.5	31	31.7	76	18.05	71	8
1954	44.6	39	55.6	40	33.6	42	24.75	24	2
1953	45.4	24	57	22	33.8	33	25.44	21	2
1952	44.5	42	56.8	25	32.2	68	13.03	89	9
1951									59
1950									177
1949	45	29	56.7	28	33.1	52	18.36	70	3
1948	44.1	51	54.3	60	33.3	47	23.84	32	9
1947	44	55	53.9	69	33.6	42	21.16	46	10
1946	45	29	55.8	37	33.7	36	24.17	31	11
1945	42.6	77	52.8	79	32.5	65	21.96	43	3
1944	45	29	54.7	54	35.1	15	24.52	29	6
1943	43.7	61	54.2	63	32.8	59	22.77	40	12
1942	44.7	38	55.1	49	34.3	26	28.25	12	4
1941	45.8	19	55.7	39	36.2	7	28.25	12	4
1940	44.4	43	54.8	53	33.5	44	20.20	57	9
1939	46.7	8	58	10	34.9	17	20.42	54	6
1938	46.1	15	57.5	15	33.9	32			14
1937	43.8	58	53.7	72	31.7	76	25.88	18	22
1936	42.2	81	53.8	71	29.8	90	13.71	87	9
1935	43.1	69	54.3	60	31.7	76	22.89	39	6
1934	49.6	1	63.7	1	34.1	28	15.12	81	25
1933	43.8	58	58.9	5	31.3	83	16.50	78	35
1932					34.5	25	20.71	52	43
1931									274

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1934	49.6
1987	49.1
2021	48.2
2024	47.8
1973	47.3
2016	47.2
2012	46.9
1939	46.7
2006	46.6
1990	46.6

Coldest
Year	Mean, °F
1996	39.9
2019	40.7
2013	40.9
1979	41
2009	41.3
2008	41.7
2014	41.8
1936	42.2
1978	42.3
1993	42.4

Wettest
Year	Precipitation, in
2019	35.04
1993	32.30
1977	31.47
1986	31.35
1962	30.51
1998	29.80
1995	29.43
2021	28.98
1957	28.97
1965	28.85

Driest
Year	Precipitation, in
1976	8.77
1952	13.03
2020	13.59
1936	13.71
1974	13.93
1980	13.97
1999	14.44
1987	14.60
1958	14.75
1934	15.12

The hottest, coldest and wettest days

Hottest day: 95°F; 22 June 2025
Coldest night: -20°F; 18 February 2025, 17 February 2025, 11 February 2025
Wettest day: 2.19 in; 13 June 2025

Month by month

Month	Mean temperature	Precipitation
January	14.4°F 35th warmest of 90	0.16 in 20th driest of 88
February	12.4°F 21st coldest of 83	0.49 in 45th driest of 92
March	36.5°F 12th warmest of 90	0.32 in 12th driest of 91
April	44.5°F 44th coldest of 91	2.02 in 45th driest of 93
May	58.4°F 31st warmest of 90	3.11 in 40th wettest of 93
June	66.8°F 45th coldest of 91	6.91 in 6th wettest of 92
July	70.9°F 28th coldest of 89	3.11 in 35th wettest of 91
August	68.5°F 25th coldest of 93	3.68 in 23rd wettest of 95
September	64.6°F 9th warmest of 92	3.02 in 20th wettest of 93
October	52°F 16th warmest of 92	0.91 in 33rd driest of 93
November	35.5°F 20th warmest of 89	0.80 in 31st wettest of 91
December	18.5°F 42nd coldest of 90	0.46 in 44th driest of 93

Hot days and freezes

Sisseton, SD has had 11 days at 90°F or above in 2025 through 31 December, the most by that date since 2024, tied 62nd most of 89 (with 2011, 1998, 1997 and 4 other years).
Sisseton, SD has had 166 freezing nights (a low of 32°F or below) in 2025 through 31 December, the most by that date since 2023, tied 47th most of 91 (with 1970, 1940 and 1934).
The first freeze of fall 2025 in Sisseton, SD came on Tuesday 7 October 2025, the earliest since 2023, tied 78th earliest of 92 (with 2023, 2016 and 1946).
The last freeze of spring 2025 in Sisseton, SD came on Tuesday 29 April 2025, the latest since 2021, tied 75th latest of 89 (with 2017).

Daily records set

Date	Record	Value	Before	Check
4 December	Coldest night	-16°F	-14°F 1991	Provisional
23 November	Warmest day	62°F	60°F 2017	Provisional
3 October	Warmest day	91°F	90°F 1938	Provisional
29 September	Warmest day	93°F	92°F 1933	Provisional
7 September	Coldest night	33°F	35°F 1956	Provisional
4 September	Coldest night	36°F	39°F 1981, 1956	Provisional
13 May	Warmest day	93°F	92°F 1932	Provisional
12 May	Warmest day	93°F	89°F 1991, 1958	Provisional
11 May	Warmest day	93°F	89°F 2004	Provisional
13 March	Warmest day	71°F	66°F 2012	Provisional
10 March	Warmest day	71°F	62°F 2024	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

2025 brought 24.99 in of precipitation in Sisseton, SD, the wettest year since 2023, 22nd wettest of 90.
The hottest day of 2025 in Sisseton, SD: 95°F on Sunday 22 June 2025.
The coldest night of 2025 in Sisseton, SD: a low of -20°F on Tuesday 18 February 2025, Monday 17 February 2025 and Tuesday 11 February 2025.
The wettest day of 2025 in Sisseton, SD: 2.19 in on Friday 13 June 2025.