Yankton Chan Gurney Muni AP Weather Records (USW00094911)

Record envelope, standing records and threshold days for Yankton Chan Gurney Muni AP (USW00094911), South Dakota, United States, with 95 years of record.

Key Facts for Yankton Chan Gurney Muni AP

Yankton Chan Gurney Muni AP (USW00094911) is a weather station in South Dakota, United States at 42.92 latitude and -97.39 longitude, 398 m (1,306 ft) above sea level.
The station reports from 1932 to 2026, 95 years of record.
1,464 records set at Yankton Chan Gurney Muni AP still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: South Dakota, United States, 42.92 latitude, -97.39 longitude.
Elevation: 398 m (1,306 ft).
Period of record: 1932 to 2026, 95 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

31 days at or beyond a record

The band shows the record high and record low for each calendar day at Yankton Chan Gurney Muni AP. The lines show the 2026 daily maximum and minimum. 31 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Yankton Chan Gurney Muni AP, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-31.6 C (-24.9 F)	15.0 C (59.0 F)	-24.9 C (-12.8 F)
Feb	21.1 C (70.0 F)	-33.2 C (-27.8 F)	18.3 C (64.9 F)	-27.7 C (-17.9 F)
Mar	33.9 C (93.0 F)	-24.9 C (-12.8 F)	30.6 C (87.1 F)	-8.8 C (16.2 F)
Apr	33.3 C (91.9 F)	-16.1 C (3.0 F)	27.8 C (82.0 F)	-6.0 C (21.2 F)
May	41.7 C (107.1 F)	-4.4 C (24.1 F)	31.7 C (89.1 F)	2.8 C (37.0 F)
Jun	41.7 C (107.1 F)	2.8 C (37.0 F)	38.3 C (100.9 F)	8.9 C (48.0 F)
Jul	46.7 C (116.1 F)	7.2 C (45.0 F)	34.4 C (93.9 F)	12.8 C (55.0 F)
Aug	44.4 C (111.9 F)	5.0 C (41.0 F)	31.7 C (89.1 F)	13.9 C (57.0 F)
Sep	40.6 C (105.1 F)	-4.4 C (24.1 F)	32.8 C (91.0 F)	7.8 C (46.0 F)
Oct	34.4 C (93.9 F)	-11.6 C (11.1 F)	32.8 C (91.0 F)	-3.3 C (26.1 F)
Nov	28.3 C (82.9 F)	-25.6 C (-14.1 F)	28.3 C (82.9 F)	-11.7 C (10.9 F)
Dec	19.4 C (66.9 F)	-27.8 C (-18.0 F)	15.0 C (59.0 F)	-25.0 C (-13.0 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Yankton Chan Gurney Muni AP still stand. 1936 holds the most, with 131.

Standing records at Yankton Chan Gurney Muni AP by the year they were set
Year set	Standing records
1932	66
1933	66
1934	96
1935	79
1936	131
1937	72
1938	40
1939	61
1940	51
1941	37
1942	64
1943	50
1944	41
1945	64
1946	51
1947	60
2009	5
2017	34
2018	50
2019	35
2020	53
2021	41
2022	63
2023	51
2024	49
2025	54

Wettest Day of Each Month

Jun: 157.0 mm (6.2 in)

The wettest day on record for each calendar month at Yankton Chan Gurney Muni AP. The most was 157.0 mm (6.2 in) on 22 June 1941.

Record daily precipitation for each month at Yankton Chan Gurney Muni AP
Month	Record daily precipitation (mm)	Date
Jan	22.6 mm (0.9 in)	27 January 1944
Feb	20.8 mm (0.8 in)	3 February 1943
Mar	69.6 mm (2.7 in)	13 March 2019
Apr	51.8 mm (2.0 in)	20 April 1941
May	67.8 mm (2.7 in)	25 May 1932
Jun	157.0 mm (6.2 in)	22 June 1941
Jul	59.4 mm (2.3 in)	19 July 2024
Aug	94.7 mm (3.7 in)	18 August 1937
Sep	56.4 mm (2.2 in)	20 September 2018
Oct	55.1 mm (2.2 in)	13 October 1943
Nov	50.8 mm (2.0 in)	22 November 1946
Dec	17.8 mm (0.7 in)	24 December 2023

Period of Record Coverage

1932 to 2025

25 years of record at Yankton Chan Gurney Muni AP, 1932 to 2025. 2 years have data for under 90 percent of days and are left out of rankings: 2017, 2025.

Days with data per year at Yankton Chan Gurney Muni AP
Year	Days with data	Share of year	Complete
1932	365	100%	Yes
1933	360	99%	Yes
1934	359	98%	Yes
1935	365	100%	Yes
1936	359	98%	Yes
1937	356	98%	Yes
1938	352	96%	Yes
1939	361	99%	Yes
1940	361	99%	Yes
1941	365	100%	Yes
1942	359	98%	Yes
1943	352	96%	Yes
1944	354	97%	Yes
1945	348	95%	Yes
1946	357	98%	Yes
1947	357	98%	Yes
2017	217	59%	No
2018	351	96%	Yes
2019	336	92%	Yes
2020	364	99%	Yes
2021	360	99%	Yes
2022	364	100%	Yes
2023	356	98%	Yes
2024	358	98%	Yes
2025	323	88%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

22 complete years, 1932 to 2024

One stripe for each of 22 complete years at Yankton Chan Gurney Muni AP, 1932 to 2024. Blue stripes are years cooler than the station's own mean of 9.2 C (48.5 F); red stripes are warmer. The coolest year was 1937, at 7.8 C (46.0 F), and the warmest was 1934, at 11.0 C (51.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Yankton Chan Gurney Muni AP as warming stripes, 1932 to 2024
Year	Annual mean temperature	Difference from the station mean
1932	9.0 C	-0.16 C
1933	10.3 C	+1.15 C
1934	11.0 C	+1.84 C
1935	9.0 C	-0.24 C
1936	8.0 C	-1.16 C
1937	7.8 C	-1.41 C
1938	9.8 C	+0.59 C
1939	10.1 C	+0.93 C
1940	8.1 C	-1.05 C
1941	9.6 C	+0.40 C
1942	8.4 C	-0.77 C
1943	8.3 C	-0.85 C
1944	8.6 C	-0.64 C
1945	7.9 C	-1.27 C
1946	9.3 C	+0.12 C
1947	8.7 C	-0.48 C
2018	8.4 C	-0.84 C
2020	9.8 C	+0.65 C
2021	10.4 C	+1.23 C
2022	9.2 C	-0.04 C
2023	9.8 C	+0.62 C
2024	10.6 C	+1.41 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1932 to 2026

Yearly extremes at Yankton Chan Gurney Muni AP: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.7 C (116.1 F)	1936	39.2 C (102.5 F)	26
Coldest night (TNn)	-33.2 C (-27.8 F)	2021	-27.7 C (-17.9 F)	27
Wettest day (Rx1day)	157.0 mm (6.2 in)	1941	55.4 mm (2.2 in)	27
Wettest five days (Rx5day)	160.8 mm (6.3 in)	1941	77.8 mm (3.1 in)	26
Longest dry spell (CDD)	68 days	2026	35 days	27

Hottest day (TXx)

The hottest day of the year at Yankton Chan Gurney Muni AP, 1932 to 2026. The record is 46.7 C (116.1 F) in 1936, marked on the chart; the median year is 39.2 C (102.5 F).

Hottest day (TXx) at Yankton Chan Gurney Muni AP by year
Year	Hottest day (TXx)
1932	40.0 C (104.0 F)
1933	40.6 C (105.1 F)
1934	44.4 C (111.9 F)
1935	39.4 C (102.9 F)
1936	46.7 C (116.1 F)
1937	42.2 C (108.0 F)
1938	41.1 C (106.0 F)
1939	43.3 C (109.9 F)
1940	43.9 C (111.0 F)
1941	39.4 C (102.9 F)
1942	40.0 C (104.0 F)
1943	38.9 C (102.0 F)
1944	38.3 C (100.9 F)
1945	36.7 C (98.1 F)
1946	37.2 C (99.0 F)
1947	43.9 C (111.0 F)
2009	n/a
2017	36.1 C (97.0 F)
2018	36.7 C (98.1 F)
2019	37.2 C (99.0 F)
2020	36.1 C (97.0 F)
2021	38.9 C (102.0 F)
2022	39.4 C (102.9 F)
2023	37.8 C (100.0 F)
2024	36.1 C (97.0 F)
2025	38.3 C (100.9 F)
2026	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Yankton Chan Gurney Muni AP, 1932 to 2026. The record is -33.2 C (-27.8 F) in 2021, marked on the chart; the median year is -27.7 C (-17.9 F).

Coldest night (TNn) at Yankton Chan Gurney Muni AP by year
Year	Coldest night (TNn)
1932	-27.8 C (-18.0 F)
1933	-31.1 C (-24.0 F)
1934	-23.9 C (-11.0 F)
1935	-26.7 C (-16.1 F)
1936	-32.2 C (-26.0 F)
1937	-28.3 C (-18.9 F)
1938	-25.6 C (-14.1 F)
1939	-25.6 C (-14.1 F)
1940	-30.0 C (-22.0 F)
1941	-21.7 C (-7.1 F)
1942	-29.4 C (-20.9 F)
1943	-30.6 C (-23.1 F)
1944	-32.8 C (-27.0 F)
1945	-23.3 C (-9.9 F)
1946	-25.6 C (-14.1 F)
1947	-26.1 C (-15.0 F)
2009	10.0 C (50.0 F)
2017	-27.7 C (-17.9 F)
2018	-31.6 C (-24.9 F)
2019	-27.7 C (-17.9 F)
2020	-23.2 C (-9.8 F)
2021	-33.2 C (-27.8 F)
2022	-27.7 C (-17.9 F)
2023	-24.9 C (-12.8 F)
2024	-28.2 C (-18.8 F)
2025	-27.7 C (-17.9 F)
2026	-25.0 C (-13.0 F)

Wettest day (Rx1day)

The wettest day of the year at Yankton Chan Gurney Muni AP, 1932 to 2026. The record is 157.0 mm (6.2 in) in 1941, marked on the chart; the median year is 55.4 mm (2.2 in).

Wettest day (Rx1day) at Yankton Chan Gurney Muni AP by year
Year	Wettest day (Rx1day)
1932	67.8 mm (2.7 in)
1933	72.9 mm (2.9 in)
1934	55.4 mm (2.2 in)
1935	52.6 mm (2.1 in)
1936	39.4 mm (1.6 in)
1937	94.7 mm (3.7 in)
1938	47.0 mm (1.9 in)
1939	57.4 mm (2.3 in)
1940	56.6 mm (2.2 in)
1941	157.0 mm (6.2 in)
1942	44.2 mm (1.7 in)
1943	84.3 mm (3.3 in)
1944	79.8 mm (3.1 in)
1945	86.1 mm (3.4 in)
1946	50.8 mm (2.0 in)
1947	33.3 mm (1.3 in)
2009	50.3 mm (2.0 in)
2017	42.9 mm (1.7 in)
2018	56.4 mm (2.2 in)
2019	69.6 mm (2.7 in)
2020	35.6 mm (1.4 in)
2021	32.0 mm (1.3 in)
2022	73.2 mm (2.9 in)
2023	54.1 mm (2.1 in)
2024	59.4 mm (2.3 in)
2025	36.8 mm (1.4 in)
2026	25.9 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Yankton Chan Gurney Muni AP, 1932 to 2026. The record is 160.8 mm (6.3 in) in 1941, marked on the chart; the median year is 77.8 mm (3.1 in).

Wettest five days (Rx5day) at Yankton Chan Gurney Muni AP by year
Year	Wettest five days (Rx5day)
1932	67.8 mm (2.7 in)
1933	72.9 mm (2.9 in)
1934	100.4 mm (4.0 in)
1935	63.3 mm (2.5 in)
1936	53.8 mm (2.1 in)
1937	127.0 mm (5.0 in)
1938	130.1 mm (5.1 in)
1939	73.5 mm (2.9 in)
1940	78.5 mm (3.1 in)
1941	160.8 mm (6.3 in)
1942	82.8 mm (3.3 in)
1943	156.2 mm (6.1 in)
1944	157.8 mm (6.2 in)
1945	91.9 mm (3.6 in)
1946	92.3 mm (3.6 in)
1947	61.3 mm (2.4 in)
2009	n/a
2017	97.0 mm (3.8 in)
2018	108.0 mm (4.3 in)
2019	76.0 mm (3.0 in)
2020	60.8 mm (2.4 in)
2021	42.4 mm (1.7 in)
2022	78.0 mm (3.1 in)
2023	73.6 mm (2.9 in)
2024	77.5 mm (3.1 in)
2025	69.5 mm (2.7 in)
2026	37.3 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Yankton Chan Gurney Muni AP, 1932 to 2026. The record is 68 days in 2026, marked on the chart; the median year is 35 days.

Longest dry spell (CDD) at Yankton Chan Gurney Muni AP by year
Year	Longest dry spell (CDD)
1932	35 days
1933	57 days
1934	49 days
1935	25 days
1936	35 days
1937	42 days
1938	22 days
1939	57 days
1940	32 days
1941	29 days
1942	39 days
1943	37 days
1944	33 days
1945	41 days
1946	34 days
1947	33 days
2009	1 day
2017	33 days
2018	29 days
2019	29 days
2020	54 days
2021	39 days
2022	40 days
2023	27 days
2024	35 days
2025	62 days
2026	68 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.

Frost Dates and Growing Season

22 years with a frost

Across 22 years with a frost, the median last spring frost at Yankton Chan Gurney Muni AP falls on 27 April and the median first autumn frost on 7 October, which leaves a median of 158 days between them.

Frost dates and growing season at Yankton Chan Gurney Muni AP
Measure	Median, all years	Earliest period	Recent period (1932 to 2024)	Recent against earliest	Fitted trend
Last spring frost	27 April	n/a	27 April	n/a	n/a
First autumn frost	7 October	n/a	7 October	n/a	n/a
Growing days	158 days	n/a	158 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Yankton Chan Gurney Muni AP standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Yankton Chan Gurney Muni AP 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).