Wessington 2SE Weather Records (USC00399064)

Record envelope, standing records and threshold days for Wessington 2SE (USC00399064), South Dakota, United States, with 98 years of record.

Key Facts for Wessington 2SE

Wessington 2SE (USC00399064) is a weather station in South Dakota, United States at 44.42 latitude and -98.69 longitude, 435 m (1,426 ft) above sea level.
The station reports from 1929 to 2026, 98 years of record.
56 records set at Wessington 2SE still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Wessington 2SE tied a daily record precipitation of 8.1 mm (0.32 in) on 3 April 2026.

About the Station

Location: South Dakota, United States, 44.42 latitude, -98.69 longitude.
Elevation: 435 m (1,426 ft).
Period of record: 1929 to 2026, 98 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Wessington 2SE. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Wessington 2SE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	39.4 C (102.9 F)	10.0 C (50.0 F)	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

56 standing records

56 records at Wessington 2SE still stand. 1929 holds the most, with 56.

All-Time Record Progression

3 new records

3 all-time records were set at Wessington 2SE between 4 March 1985 and 23 November 2001. Each dot is a new record.

When Wessington 2SE set new all-time records
Date	Kind	Detail
1985-03-04	Record snow depth	Record snow depth 66.0 cm (26.0 in)
2001-01-30	Record daily snowfall	Record daily snowfall 43.2 cm (17.0 in)
2001-11-23	Record daily precipitation	Record daily precipitation 127.0 mm (5.0 in)

Wettest Day of Each Month

Nov: 127.0 mm (5.0 in)

The wettest day on record for each calendar month at Wessington 2SE. The most was 127.0 mm (5.0 in) on 23 November 2001.

Record daily precipitation for each month at Wessington 2SE
Month	Record daily precipitation (mm)	Date
Jan	48.3 mm (1.9 in)	30 January 2001
Feb	36.3 mm (1.4 in)	29 February 2012
Mar	44.7 mm (1.8 in)	11 March 1977
Apr	63.5 mm (2.5 in)	7 April 2001
May	125.7 mm (4.9 in)	6 May 2007
Jun	81.3 mm (3.2 in)	12 June 2010
Jul	73.7 mm (2.9 in)	9 July 2000
Aug	122.4 mm (4.8 in)	2 August 2019
Sep	96.5 mm (3.8 in)	2 September 2008
Oct	86.6 mm (3.4 in)	13 October 2023
Nov	127.0 mm (5.0 in)	23 November 2001
Dec	50.8 mm (2.0 in)	4 December 2003

Period of Record Coverage

1929 to 1929

1 years of record at Wessington 2SE, 1929 to 1929. 1 years have data for under 90 percent of days and are left out of rankings: 1929.

Latest Records

Latest records at Wessington 2SE
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 April 2026	Wessington 2SE, US	daily rain (Tie)	8.1 mm (0.32 in)	tie	8 years	2 of 100 (Routine)
2 April 2026	Wessington 2SE, US	daily snowfall	8.9 cm (3.5 in)	1.3 cm (0.5 in)	1 year	10 of 100 (Routine)
7 March 2026	Wessington 2SE, US	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	28 years	20 of 100 (Routine)
12 December 2025	Wessington 2SE, US	daily snowfall	3.0 cm (1.2 in)	0.5 cm (0.2 in)	15 years	13 of 100 (Routine)
7 December 2025	Wessington 2SE, US	daily rain	5.6 mm (0.22 in)	1.8 mm (0.07 in)	36 years	20 of 100 (Routine)
30 November 2025	Wessington 2SE, US	daily snow depth (Tie)	17.8 cm (7.0 in)	tie	42 years	5 of 100 (Routine)
26 November 2025	Wessington 2SE, US	daily snowfall	5.6 cm (2.2 in)	0.5 cm (0.2 in)	60 years	27 of 100 (Routine)
26 November 2025	Wessington 2SE, US	daily snow depth (Tie)	7.6 cm (3.0 in)	tie	66 years	7 of 100 (Routine)
18 November 2025	Wessington 2SE, US	daily rain	20.3 mm (0.8 in)	11.2 mm (0.4 in)	72 years	20 of 100 (Routine)
22 August 2025	Wessington 2SE, US	daily rain	43.9 mm (1.7 in)	28.7 mm (1.1 in)	71 years	49 of 100 (Notable)
20 May 2025	Wessington 2SE, US	daily rain	30.2 mm (1.2 in)	6.1 mm (0.24 in)	68 years	34 of 100 (Routine)
30 March 2025	Wessington 2SE, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	3 years	2 of 100 (Routine)
18 December 2024	Wessington 2SE, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	69 years	37 of 100 (Notable)
19 November 2024	Wessington 2SE, US	daily rain	16.5 mm (0.6 in)	11.4 mm (0.4 in)	43 years	20 of 100 (Routine)
4 November 2024	Wessington 2SE, US	daily rain	10.4 mm (0.4 in)	1.5 mm (0.06 in)	21 years	16 of 100 (Routine)
17 April 2024	Wessington 2SE, US	daily rain (Tie)	22.9 mm (0.9 in)	tie	94 years	9 of 100 (Routine)
2 April 2024	Wessington 2SE, US	daily snowfall	7.6 cm (3.0 in)	5.1 cm (2.0 in)	4 years	16 of 100 (Routine)
15 February 2024	Wessington 2SE, US	daily rain	13.7 mm (0.5 in)	6.1 mm (0.24 in)	33 years	20 of 100 (Routine)
21 January 2024	Wessington 2SE, US	daily snow depth (Tie)	27.9 cm (11.0 in)	tie	4 years	2 of 100 (Routine)
8 January 2024	Wessington 2SE, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	41 years	5 of 100 (Routine)

Extremes by Year

1929 to 2026

Yearly extremes at Wessington 2SE: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.4 C (102.9 F)	1929	39.4 C (102.9 F)	1
Coldest night (TNn)	10.0 C (50.0 F)	1929	10.0 C (50.0 F)	1
Wettest day (Rx1day)	127.0 mm (5.0 in)	2001	45.0 mm (1.8 in)	83
Wettest five days (Rx5day)	177.8 mm (7.0 in)	2001	68.1 mm (2.7 in)	83
Longest dry spell (CDD)	77 days	1952	40 days	82

Hottest day (TXx)

The hottest day of the year at Wessington 2SE, 1929 to 2026. The record is 39.4 C (102.9 F) in 1929, marked on the chart; the median year is 39.4 C (102.9 F).

Hottest day (TXx) at Wessington 2SE by year
Year	Hottest day (TXx)
1929	39.4 C (102.9 F)
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Wessington 2SE, 1929 to 2026. The record is 10.0 C (50.0 F) in 1929, marked on the chart; the median year is 10.0 C (50.0 F).

Coldest night (TNn) at Wessington 2SE by year
Year	Coldest night (TNn)
1929	10.0 C (50.0 F)
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Wessington 2SE, 1929 to 2026. The record is 127.0 mm (5.0 in) in 2001, marked on the chart; the median year is 45.0 mm (1.8 in).

Wettest day (Rx1day) at Wessington 2SE by year
Year	Wettest day (Rx1day)
1929	21.8 mm (0.9 in)
1930	44.5 mm (1.8 in)
1931	30.0 mm (1.2 in)
1932	39.9 mm (1.6 in)
1933	36.6 mm (1.4 in)
1934	26.4 mm (1.0 in)
1935	46.5 mm (1.8 in)
1951	51.3 mm (2.0 in)
1952	30.5 mm (1.2 in)
1953	36.3 mm (1.4 in)
1954	57.4 mm (2.3 in)
1955	27.2 mm (1.1 in)
1956	65.5 mm (2.6 in)
1957	31.8 mm (1.3 in)
1958	33.0 mm (1.3 in)
1959	49.5 mm (1.9 in)
1960	39.1 mm (1.5 in)
1961	56.4 mm (2.2 in)
1962	60.7 mm (2.4 in)
1963	37.1 mm (1.5 in)
1964	64.3 mm (2.5 in)
1965	26.7 mm (1.1 in)
1966	62.5 mm (2.5 in)
1967	79.2 mm (3.1 in)
1968	7.6 mm (0.30 in)
1969	45.5 mm (1.8 in)
1970	61.0 mm (2.4 in)
1971	33.5 mm (1.3 in)
1972	48.3 mm (1.9 in)
1973	31.8 mm (1.3 in)
1974	32.3 mm (1.3 in)
1975	44.5 mm (1.8 in)
1976	60.2 mm (2.4 in)
1977	44.7 mm (1.8 in)
1978	35.1 mm (1.4 in)
1979	33.8 mm (1.3 in)
1980	39.9 mm (1.6 in)
1981	38.6 mm (1.5 in)
1982	35.6 mm (1.4 in)
1983	44.2 mm (1.7 in)
1984	35.6 mm (1.4 in)
1985	39.1 mm (1.5 in)
1986	50.8 mm (2.0 in)
1987	43.2 mm (1.7 in)
1988	78.0 mm (3.1 in)
1989	33.5 mm (1.3 in)
1990	55.1 mm (2.2 in)
1991	55.1 mm (2.2 in)
1992	49.5 mm (1.9 in)
1993	44.5 mm (1.8 in)
1994	40.6 mm (1.6 in)
1995	53.3 mm (2.1 in)
1996	59.7 mm (2.4 in)
1997	45.7 mm (1.8 in)
1998	64.8 mm (2.6 in)
1999	77.0 mm (3.0 in)
2000	73.7 mm (2.9 in)
2001	127.0 mm (5.0 in)
2002	44.5 mm (1.8 in)
2003	50.8 mm (2.0 in)
2004	39.9 mm (1.6 in)
2005	49.5 mm (1.9 in)
2006	68.8 mm (2.7 in)
2007	125.7 mm (4.9 in)
2008	96.5 mm (3.8 in)
2009	34.3 mm (1.4 in)
2010	81.3 mm (3.2 in)
2011	54.6 mm (2.1 in)
2012	36.3 mm (1.4 in)
2013	50.8 mm (2.0 in)
2014	61.7 mm (2.4 in)
2015	78.7 mm (3.1 in)
2016	50.8 mm (2.0 in)
2017	48.3 mm (1.9 in)
2018	71.1 mm (2.8 in)
2019	122.4 mm (4.8 in)
2020	41.9 mm (1.6 in)
2021	39.4 mm (1.6 in)
2022	43.2 mm (1.7 in)
2023	96.8 mm (3.8 in)
2024	45.0 mm (1.8 in)
2025	43.9 mm (1.7 in)
2026	33.8 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Wessington 2SE, 1929 to 2026. The record is 177.8 mm (7.0 in) in 2001, marked on the chart; the median year is 68.1 mm (2.7 in).

Wettest five days (Rx5day) at Wessington 2SE by year
Year	Wettest five days (Rx5day)
1929	41.4 mm (1.6 in)
1930	85.1 mm (3.4 in)
1931	53.1 mm (2.1 in)
1932	53.1 mm (2.1 in)
1933	42.3 mm (1.7 in)
1934	37.4 mm (1.5 in)
1935	83.8 mm (3.3 in)
1951	109.2 mm (4.3 in)
1952	38.3 mm (1.5 in)
1953	84.9 mm (3.3 in)
1954	59.4 mm (2.3 in)
1955	53.1 mm (2.1 in)
1956	91.9 mm (3.6 in)
1957	71.6 mm (2.8 in)
1958	46.3 mm (1.8 in)
1959	60.9 mm (2.4 in)
1960	51.5 mm (2.0 in)
1961	85.4 mm (3.4 in)
1962	80.5 mm (3.2 in)
1963	54.4 mm (2.1 in)
1964	68.1 mm (2.7 in)
1965	51.0 mm (2.0 in)
1966	62.5 mm (2.5 in)
1967	140.7 mm (5.5 in)
1968	10.6 mm (0.4 in)
1969	53.6 mm (2.1 in)
1970	74.7 mm (2.9 in)
1971	64.5 mm (2.5 in)
1972	80.8 mm (3.2 in)
1973	59.3 mm (2.3 in)
1974	35.1 mm (1.4 in)
1975	60.9 mm (2.4 in)
1976	60.2 mm (2.4 in)
1977	68.8 mm (2.7 in)
1978	45.3 mm (1.8 in)
1979	60.2 mm (2.4 in)
1980	62.0 mm (2.4 in)
1981	62.5 mm (2.5 in)
1982	77.8 mm (3.1 in)
1983	52.1 mm (2.1 in)
1984	60.0 mm (2.4 in)
1985	101.8 mm (4.0 in)
1986	79.2 mm (3.1 in)
1987	64.5 mm (2.5 in)
1988	121.7 mm (4.8 in)
1989	63.3 mm (2.5 in)
1990	68.1 mm (2.7 in)
1991	107.4 mm (4.2 in)
1992	78.7 mm (3.1 in)
1993	82.6 mm (3.3 in)
1994	90.9 mm (3.6 in)
1995	72.9 mm (2.9 in)
1996	137.7 mm (5.4 in)
1997	74.9 mm (2.9 in)
1998	83.1 mm (3.3 in)
1999	95.1 mm (3.7 in)
2000	78.0 mm (3.1 in)
2001	177.8 mm (7.0 in)
2002	44.7 mm (1.8 in)
2003	48.3 mm (1.9 in)
2004	51.3 mm (2.0 in)
2005	109.9 mm (4.3 in)
2006	88.6 mm (3.5 in)
2007	161.3 mm (6.4 in)
2008	96.5 mm (3.8 in)
2009	63.5 mm (2.5 in)
2010	125.3 mm (4.9 in)
2011	41.9 mm (1.6 in)
2012	38.4 mm (1.5 in)
2013	94.0 mm (3.7 in)
2014	61.7 mm (2.4 in)
2015	81.3 mm (3.2 in)
2016	72.7 mm (2.9 in)
2017	97.1 mm (3.8 in)
2018	77.5 mm (3.1 in)
2019	122.4 mm (4.8 in)
2020	53.1 mm (2.1 in)
2021	43.7 mm (1.7 in)
2022	115.0 mm (4.5 in)
2023	132.1 mm (5.2 in)
2024	66.0 mm (2.6 in)
2025	66.8 mm (2.6 in)
2026	62.5 mm (2.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Wessington 2SE, 1929 to 2026. The record is 77 days in 1952, marked on the chart; the median year is 40 days.

Longest dry spell (CDD) at Wessington 2SE by year
Year	Longest dry spell (CDD)
1929	20 days
1930	40 days
1931	38 days
1932	40 days
1933	63 days
1934	55 days
1935	24 days
1951	6 days
1952	77 days
1953	53 days
1954	34 days
1955	47 days
1956	25 days
1957	45 days
1958	46 days
1959	44 days
1960	30 days
1961	40 days
1962	29 days
1963	33 days
1964	45 days
1965	37 days
1966	31 days
1967	39 days
1968	14 days
1969	19 days
1970	36 days
1971	28 days
1972	34 days
1973	21 days
1974	48 days
1975	68 days
1976	34 days
1977	30 days
1978	55 days
1979	54 days
1980	37 days
1981	42 days
1982	44 days
1983	54 days
1984	43 days
1985	27 days
1986	29 days
1987	39 days
1988	28 days
1989	26 days
1990	55 days
1991	47 days
1992	53 days
1993	33 days
1994	32 days
1995	25 days
1996	34 days
1997	46 days
1998	49 days
1999	73 days
2000	48 days
2001	43 days
2002	61 days
2003	20 days
2004	41 days
2005	40 days
2006	38 days
2007	41 days
2008	21 days
2009	37 days
2010	29 days
2011	n/a
2012	42 days
2013	43 days
2014	41 days
2015	32 days
2016	41 days
2017	50 days
2018	27 days
2019	26 days
2020	44 days
2021	34 days
2022	32 days
2023	34 days
2024	42 days
2025	62 days
2026	49 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

66 years, 1930 to 2025

A day with at least 47.0 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 145.6 mm (5.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Wessington 2SE: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	47.0 mm (1.9 in)
5 years	65.6 mm (2.6 in)
10 years	80.5 mm (3.2 in)
25 years	103.0 mm (4.1 in)
50 years	122.9 mm (4.8 in)
100 years	145.6 mm (5.7 in)	Longer than the 66 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 66 years of values from 1930 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 127.0 mm (5.0 in) in 2001; 125.7 mm (4.9 in) in 2007; 122.4 mm (4.8 in) in 2019.

Download the Data

Data for Wessington 2SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Wessington 2SE threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).