Ft Yates 4 SW Weather Records (USC00323207)

Record envelope, standing records and threshold days for Ft Yates 4 SW (USC00323207), North Dakota, United States, with 108 years of record.

Key Facts for Ft Yates 4 SW

Ft Yates 4 SW (USC00323207) is a weather station in North Dakota, United States at 46.05 latitude and -100.67 longitude, 511 m (1,675 ft) above sea level.
The station reports from 1893 to 2000, 108 years of record.
1,464 records set at Ft Yates 4 SW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ft Yates 4 SW set a daily record precipitation of 12.7 mm (0.5 in) on 25 February 2000.

About the Station

Location: North Dakota, United States, 46.05 latitude, -100.67 longitude.
Elevation: 511 m (1,675 ft).
Period of record: 1893 to 2000, 108 years.
Eligible elements: tmax, tmin, 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 Ft Yates 4 SW. 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 Ft Yates 4 SW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.8 C (64.0 F)	-40.6 C (-41.1 F)	n/a	n/a
Feb	22.2 C (72.0 F)	-45.6 C (-50.1 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-36.1 C (-33.0 F)	n/a	n/a
Apr	37.2 C (99.0 F)	-21.7 C (-7.1 F)	n/a	n/a
May	41.7 C (107.1 F)	-8.9 C (16.0 F)	n/a	n/a
Jun	43.3 C (109.9 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	48.3 C (118.9 F)	-2.2 C (28.0 F)	n/a	n/a
Aug	43.9 C (111.0 F)	-1.7 C (28.9 F)	n/a	n/a
Sep	41.7 C (107.1 F)	-9.4 C (15.1 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-20.0 C (-4.0 F)	n/a	n/a
Nov	26.7 C (80.1 F)	-30.6 C (-23.1 F)	n/a	n/a
Dec	20.6 C (69.1 F)	-36.7 C (-34.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ft Yates 4 SW still stand. 1936 holds the most, with 54.

Standing records at Ft Yates 4 SW by the year they were set
Year set	Standing records
1893	17
1894	14
1895	43
1896	29
1897	33
1898	31
1899	37
1900	20
1902	12
1903	9
1904	11
1905	17
1906	11
1907	13
1908	7
1929	19
1930	17
1931	24
1932	22
1933	22
1934	53
1935	30
1936	54
1937	24
1938	13
1939	27
1940	13
1941	14
1942	19
1943	10
1944	11
1945	21
1946	19
1947	18
1948	15
1949	15
1950	28
1951	19
1952	16
1953	15
1954	9
1955	11
1956	10
1957	11
1958	13
1959	19
1960	9
1961	8
1962	17
1963	18
1964	14
1965	20
1966	8
1967	11
1968	15
1969	13
1970	10
1971	4
1972	14
1973	7
1974	7
1975	12
1976	10
1977	20
1978	8
1979	7
1980	12
1981	12
1982	7
1983	10
1984	21
1985	11
1986	11
1987	25
1988	22
1989	26
1990	12
1991	28
1992	24
1993	10
1994	15
1995	13
1996	18
1997	17
1998	12
1999	10
2000	1

Wettest Day of Each Month

Jun: 119.4 mm (4.7 in)

The wettest day on record for each calendar month at Ft Yates 4 SW. The most was 119.4 mm (4.7 in) on 5 June 1937.

Record daily precipitation for each month at Ft Yates 4 SW
Month	Record daily precipitation (mm)	Date
Jan	35.6 mm (1.4 in)	30 January 1896
Feb	27.9 mm (1.1 in)	28 February 1951
Mar	34.3 mm (1.4 in)	14 March 1973
Apr	101.6 mm (4.0 in)	20 April 1974
May	70.1 mm (2.8 in)	30 May 1943
Jun	119.4 mm (4.7 in)	5 June 1937
Jul	91.2 mm (3.6 in)	16 July 1927
Aug	86.4 mm (3.4 in)	2 August 1984
Sep	62.7 mm (2.5 in)	3 September 1965
Oct	66.8 mm (2.6 in)	2 October 1971
Nov	34.3 mm (1.4 in)	3 November 1956
Dec	18.3 mm (0.7 in)	26 December 1988

Period of Record Coverage

1893 to 2000

87 years of record at Ft Yates 4 SW, 1893 to 2000. 14 years have data for under 90 percent of days and are left out of rankings: 1900, 1905, 1906, 1908, 1953, 1956, 1960, 1961 and others.

Days with data per year at Ft Yates 4 SW
Year	Days with data	Share of year	Complete
1893	333	91%	Yes
1894	351	96%	Yes
1895	344	94%	Yes
1896	364	99%	Yes
1897	362	99%	Yes
1898	360	99%	Yes
1899	363	99%	Yes
1900	325	89%	No
1902	363	99%	Yes
1903	342	94%	Yes
1904	357	98%	Yes
1905	328	90%	No
1906	305	84%	No
1907	338	93%	Yes
1908	88	24%	No
1929	348	95%	Yes
1930	357	98%	Yes
1931	360	99%	Yes
1932	358	98%	Yes
1933	360	99%	Yes
1934	358	98%	Yes
1935	361	99%	Yes
1936	359	98%	Yes
1937	363	99%	Yes
1938	358	98%	Yes
1939	363	99%	Yes
1940	361	99%	Yes
1941	353	97%	Yes
1942	358	98%	Yes
1943	353	97%	Yes
1944	349	95%	Yes
1945	359	98%	Yes
1946	357	98%	Yes
1947	355	97%	Yes
1948	363	99%	Yes
1949	345	95%	Yes
1950	363	99%	Yes
1951	359	98%	Yes
1952	334	91%	Yes
1953	325	89%	No
1954	362	99%	Yes
1955	359	98%	Yes
1956	271	74%	No
1957	340	93%	Yes
1958	357	98%	Yes
1959	351	96%	Yes
1960	327	89%	No
1961	320	88%	No
1962	364	100%	Yes
1963	363	99%	Yes
1964	360	98%	Yes
1965	364	100%	Yes
1966	360	99%	Yes
1967	364	100%	Yes
1968	364	99%	Yes
1969	363	99%	Yes
1970	358	98%	Yes
1971	361	99%	Yes
1972	357	98%	Yes
1973	364	100%	Yes
1974	362	99%	Yes
1975	360	99%	Yes
1976	359	98%	Yes
1977	355	97%	Yes
1978	364	100%	Yes
1979	362	99%	Yes
1980	366	100%	Yes
1981	363	99%	Yes
1982	354	97%	Yes
1983	356	98%	Yes
1984	254	69%	No
1985	320	88%	No
1986	255	70%	No
1987	310	85%	No
1988	331	90%	Yes
1989	354	97%	Yes
1990	363	99%	Yes
1991	332	91%	Yes
1992	350	96%	Yes
1993	361	99%	Yes
1994	363	99%	Yes
1995	364	100%	Yes
1996	335	92%	Yes
1997	327	90%	No
1998	364	100%	Yes
1999	363	99%	Yes
2000	59	16%	No

Latest Records

Latest records at Ft Yates 4 SW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 February 2000	Ft Yates 4 SW, US	daily rain	12.7 mm (0.5 in)	5.1 mm (0.20 in)	53 years	20 of 100 (Routine)
24 February 2000	Ft Yates 4 SW, US	daily high min (Tie)	1.7 C (35.1 F)	tie	45 years	5 of 100 (Routine)
22 February 2000	Ft Yates 4 SW, US	daily high max (Tie)	15.6 C (60.1 F)	tie	17 years	3 of 100 (Routine)
8 February 2000	Ft Yates 4 SW, US	daily high max	17.8 C (64.0 F)	0.6 C (1.1 F)	45 years	23 of 100 (Routine)
3 February 2000	Ft Yates 4 SW, US	daily high max (Tie)	15.6 C (60.1 F)	tie	64 years	7 of 100 (Routine)
29 December 1999	Ft Yates 4 SW, US	daily high max	13.3 C (55.9 F)	3.3 C (5.9 F)	101 years	44 of 100 (Notable)
28 December 1999	Ft Yates 4 SW, US	daily high max (Tie)	10.0 C (50.0 F)	tie	18 years	3 of 100 (Routine)
24 December 1999	Ft Yates 4 SW, US	daily high max (Tie)	10.6 C (51.1 F)	tie	99 years	9 of 100 (Routine)
19 December 1999	Ft Yates 4 SW, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	61 years	7 of 100 (Routine)
25 November 1999	Ft Yates 4 SW, US	daily high max (Tie)	12.8 C (55.0 F)	tie	65 years	7 of 100 (Routine)
12 November 1999	Ft Yates 4 SW, US	daily high max	22.8 C (73.0 F)	1.7 C (3.1 F)	68 years	32 of 100 (Routine)
8 November 1999	Ft Yates 4 SW, US	daily high max	25.0 C (77.0 F)	3.3 C (5.9 F)	34 years	24 of 100 (Routine)
7 November 1999	Ft Yates 4 SW, US	monthly high max	26.7 C (80.1 F)	0.6 C (1.1 F)	95 years	48 of 100 (Notable)
3 October 1999	Ft Yates 4 SW, US	daily low min	-11.7 C (10.9 F)	4.5 C (8.1 F)	9 years	20 of 100 (Routine)
2 October 1999	Ft Yates 4 SW, US	daily low min	-6.7 C (19.9 F)	0.6 C (1.1 F)	24 years	18 of 100 (Routine)
3 September 1999	Ft Yates 4 SW, US	daily low max	14.4 C (57.9 F)	0.6 C (1.1 F)	42 years	22 of 100 (Routine)
29 August 1999	Ft Yates 4 SW, US	daily rain	19.1 mm (0.8 in)	5.9 mm (0.23 in)	48 years	20 of 100 (Routine)
12 August 1999	Ft Yates 4 SW, US	daily rain	36.8 mm (1.4 in)	24.1 mm (0.9 in)	49 years	48 of 100 (Notable)
17 July 1999	Ft Yates 4 SW, US	daily low max	20.6 C (69.1 F)	1.6 C (2.9 F)	61 years	31 of 100 (Routine)
4 July 1999	Ft Yates 4 SW, US	daily rain	38.1 mm (1.5 in)	5.8 mm (0.23 in)	66 years	36 of 100 (Notable)

Climate Trend

66 complete years, 1896 to 1999

One stripe for each of 66 complete years at Ft Yates 4 SW, 1896 to 1999. Blue stripes are years cooler than the station's own mean of 6.6 C (43.9 F); red stripes are warmer. The coolest year was 1950, at 3.7 C (38.7 F), and the warmest was 1987, at 10.4 C (50.7 F). The strongest colour marks a difference of 3.8 C (6.8 F).

Annual mean temperature at Ft Yates 4 SW as warming stripes, 1896 to 1999
Year	Annual mean temperature	Difference from the station mean
1896	4.7 C	-1.86 C
1897	4.9 C	-1.69 C
1899	5.8 C	-0.78 C
1904	5.4 C	-1.21 C
1907	5.6 C	-1.00 C
1929	5.3 C	-1.32 C
1930	7.4 C	+0.81 C
1931	8.6 C	+2.03 C
1932	5.9 C	-0.73 C
1933	7.4 C	+0.76 C
1934	8.7 C	+2.12 C
1935	6.4 C	-0.25 C
1936	5.9 C	-0.69 C
1937	5.7 C	-0.92 C
1938	6.6 C	+0.04 C
1939	6.8 C	+0.23 C
1940	6.0 C	-0.65 C
1941	7.7 C	+1.14 C
1942	6.9 C	+0.32 C
1943	6.2 C	-0.44 C
1944	6.4 C	-0.18 C
1945	5.7 C	-0.93 C
1946	7.1 C	+0.47 C
1947	6.5 C	-0.11 C
1948	6.6 C	-0.01 C
1950	3.7 C	-2.87 C
1951	4.0 C	-2.62 C
1954	7.7 C	+1.12 C
1955	6.8 C	+0.16 C
1957	6.0 C	-0.62 C
1958	6.1 C	-0.51 C
1959	5.8 C	-0.83 C
1960	5.5 C	-1.13 C
1962	6.2 C	-0.45 C
1963	7.3 C	+0.71 C
1964	6.3 C	-0.34 C
1965	5.2 C	-1.40 C
1966	5.2 C	-1.44 C
1967	6.1 C	-0.54 C
1968	5.7 C	-0.91 C
1969	5.8 C	-0.81 C
1970	6.1 C	-0.53 C
1971	6.2 C	-0.45 C
1972	5.6 C	-1.00 C
1973	7.9 C	+1.26 C
1974	7.2 C	+0.56 C
1975	6.8 C	+0.24 C
1976	8.1 C	+1.52 C
1977	7.5 C	+0.92 C
1978	5.8 C	-0.79 C
1979	5.7 C	-0.86 C
1980	8.1 C	+1.45 C
1981	8.7 C	+2.05 C
1982	6.1 C	-0.51 C
1983	7.6 C	+1.04 C
1985	6.9 C	+0.27 C
1987	10.4 C	+3.77 C
1988	9.0 C	+2.44 C
1989	7.6 C	+0.95 C
1990	8.9 C	+2.28 C
1992	7.9 C	+1.29 C
1993	6.4 C	-0.23 C
1994	6.6 C	-0.04 C
1995	6.5 C	-0.12 C
1998	7.4 C	+0.81 C
1999	7.4 C	+0.82 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1896 to 1999. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 66 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ft Yates 4 SW
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.5) per decade	1896 to 1999	66	Rise
Mean daily maximum	0.09 C (-0.05 to 0.22) per decade	0.2 F (-0.1 to 0.4) per decade	1896 to 1999	66	Not clearly different from zero
Mean daily minimum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1896 to 1999	66	Rise

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

1893 to 2000

Yearly extremes at Ft Yates 4 SW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.3 C (118.9 F)	1936	39.4 C (102.9 F)	87
Coldest night (TNn)	-45.6 C (-50.1 F)	1936	-33.9 C (-29.0 F)	87
Wettest day (Rx1day)	119.4 mm (4.7 in)	1937	38.4 mm (1.5 in)	90
Wettest five days (Rx5day)	143.6 mm (5.7 in)	1937	58.9 mm (2.3 in)	90
Longest dry spell (CDD)	73 days	1941	39 days	90

Hottest day (TXx)

The hottest day of the year at Ft Yates 4 SW, 1893 to 2000. The record is 48.3 C (118.9 F) in 1936, marked on the chart; the median year is 39.4 C (102.9 F).

Hottest day (TXx) at Ft Yates 4 SW by year
Year	Hottest day (TXx)
1893	40.6 C (105.1 F)
1894	40.0 C (104.0 F)
1895	37.8 C (100.0 F)
1896	40.6 C (105.1 F)
1897	40.6 C (105.1 F)
1898	37.8 C (100.0 F)
1899	41.1 C (106.0 F)
1900	43.9 C (111.0 F)
1902	40.6 C (105.1 F)
1903	39.4 C (102.9 F)
1904	37.2 C (99.0 F)
1905	42.8 C (109.0 F)
1906	38.9 C (102.0 F)
1907	36.7 C (98.1 F)
1908	16.7 C (62.1 F)
1926	n/a
1927	n/a
1928	n/a
1929	40.6 C (105.1 F)
1930	41.1 C (106.0 F)
1931	43.9 C (111.0 F)
1932	38.9 C (102.0 F)
1933	43.3 C (109.9 F)
1934	44.4 C (111.9 F)
1935	43.3 C (109.9 F)
1936	48.3 C (118.9 F)
1937	40.6 C (105.1 F)
1938	41.1 C (106.0 F)
1939	38.3 C (100.9 F)
1940	39.4 C (102.9 F)
1941	43.9 C (111.0 F)
1942	38.9 C (102.0 F)
1943	38.3 C (100.9 F)
1944	39.4 C (102.9 F)
1945	38.3 C (100.9 F)
1946	40.0 C (104.0 F)
1947	43.3 C (109.9 F)
1948	40.0 C (104.0 F)
1949	41.1 C (106.0 F)
1950	36.7 C (98.1 F)
1951	36.7 C (98.1 F)
1952	40.6 C (105.1 F)
1953	38.9 C (102.0 F)
1954	41.7 C (107.1 F)
1955	38.9 C (102.0 F)
1956	33.3 C (91.9 F)
1957	38.3 C (100.9 F)
1958	42.2 C (108.0 F)
1959	41.7 C (107.1 F)
1960	42.2 C (108.0 F)
1961	41.1 C (106.0 F)
1962	35.0 C (95.0 F)
1963	40.6 C (105.1 F)
1964	40.6 C (105.1 F)
1965	36.1 C (97.0 F)
1966	38.3 C (100.9 F)
1967	38.9 C (102.0 F)
1968	36.1 C (97.0 F)
1969	34.4 C (93.9 F)
1970	38.9 C (102.0 F)
1971	37.2 C (99.0 F)
1972	36.1 C (97.0 F)
1973	42.8 C (109.0 F)
1974	38.9 C (102.0 F)
1975	43.3 C (109.9 F)
1976	39.4 C (102.9 F)
1977	39.4 C (102.9 F)
1978	39.4 C (102.9 F)
1979	35.0 C (95.0 F)
1980	38.9 C (102.0 F)
1981	36.1 C (97.0 F)
1982	38.3 C (100.9 F)
1983	39.4 C (102.9 F)
1984	38.9 C (102.0 F)
1985	42.2 C (108.0 F)
1986	37.8 C (100.0 F)
1987	38.3 C (100.9 F)
1988	41.7 C (107.1 F)
1989	40.0 C (104.0 F)
1990	36.7 C (98.1 F)
1991	39.4 C (102.9 F)
1992	37.2 C (99.0 F)
1993	36.7 C (98.1 F)
1994	37.8 C (100.0 F)
1995	38.9 C (102.0 F)
1996	39.4 C (102.9 F)
1997	37.8 C (100.0 F)
1998	37.8 C (100.0 F)
1999	40.6 C (105.1 F)
2000	18.3 C (64.9 F)

Coldest night (TNn)

The coldest night of the year at Ft Yates 4 SW, 1893 to 2000. The record is -45.6 C (-50.1 F) in 1936, marked on the chart; the median year is -33.9 C (-29.0 F).

Coldest night (TNn) at Ft Yates 4 SW by year
Year	Coldest night (TNn)
1893	-37.2 C (-35.0 F)
1894	-35.0 C (-31.0 F)
1895	-37.2 C (-35.0 F)
1896	-31.1 C (-24.0 F)
1897	-38.9 C (-38.0 F)
1898	-36.7 C (-34.1 F)
1899	-37.2 C (-35.0 F)
1900	-28.9 C (-20.0 F)
1902	-33.9 C (-29.0 F)
1903	-34.4 C (-29.9 F)
1904	-35.0 C (-31.0 F)
1905	-40.6 C (-41.1 F)
1906	-34.4 C (-29.9 F)
1907	-35.0 C (-31.0 F)
1908	-27.2 C (-17.0 F)
1926	n/a
1927	n/a
1928	n/a
1929	-40.6 C (-41.1 F)
1930	-34.4 C (-29.9 F)
1931	-25.6 C (-14.1 F)
1932	-31.7 C (-25.1 F)
1933	-37.2 C (-35.0 F)
1934	-31.7 C (-25.1 F)
1935	-36.1 C (-33.0 F)
1936	-45.6 C (-50.1 F)
1937	-40.6 C (-41.1 F)
1938	-35.0 C (-31.0 F)
1939	-36.1 C (-33.0 F)
1940	-32.2 C (-26.0 F)
1941	-28.9 C (-20.0 F)
1942	-33.9 C (-29.0 F)
1943	-37.2 C (-35.0 F)
1944	-40.0 C (-40.0 F)
1945	-31.7 C (-25.1 F)
1946	-30.6 C (-23.1 F)
1947	-33.9 C (-29.0 F)
1948	-31.7 C (-25.1 F)
1949	-36.7 C (-34.1 F)
1950	-39.4 C (-38.9 F)
1951	-37.2 C (-35.0 F)
1952	-30.6 C (-23.1 F)
1953	-24.4 C (-11.9 F)
1954	-37.2 C (-35.0 F)
1955	-31.1 C (-24.0 F)
1956	-32.8 C (-27.0 F)
1957	-32.8 C (-27.0 F)
1958	-35.6 C (-32.1 F)
1959	-34.4 C (-29.9 F)
1960	-31.1 C (-24.0 F)
1961	-31.7 C (-25.1 F)
1962	-35.0 C (-31.0 F)
1963	-34.4 C (-29.9 F)
1964	-34.4 C (-29.9 F)
1965	-37.8 C (-36.0 F)
1966	-36.7 C (-34.1 F)
1967	-35.0 C (-31.0 F)
1968	-33.9 C (-29.0 F)
1969	-28.9 C (-20.0 F)
1970	-35.0 C (-31.0 F)
1971	-35.0 C (-31.0 F)
1972	-35.0 C (-31.0 F)
1973	-31.7 C (-25.1 F)
1974	-28.9 C (-20.0 F)
1975	-28.3 C (-18.9 F)
1976	-30.6 C (-23.1 F)
1977	-33.3 C (-27.9 F)
1978	-31.7 C (-25.1 F)
1979	-32.2 C (-26.0 F)
1980	-28.9 C (-20.0 F)
1981	-29.4 C (-20.9 F)
1982	-34.4 C (-29.9 F)
1983	-33.3 C (-27.9 F)
1984	-30.6 C (-23.1 F)
1985	-32.2 C (-26.0 F)
1986	-26.7 C (-16.1 F)
1987	-21.1 C (-6.0 F)
1988	-34.4 C (-29.9 F)
1989	-35.6 C (-32.1 F)
1990	-33.9 C (-29.0 F)
1991	-26.7 C (-16.1 F)
1992	-27.8 C (-18.0 F)
1993	-33.3 C (-27.9 F)
1994	-38.9 C (-38.0 F)
1995	-32.8 C (-27.0 F)
1996	-42.8 C (-45.0 F)
1997	-31.1 C (-24.0 F)
1998	-34.4 C (-29.9 F)
1999	-35.6 C (-32.1 F)
2000	-26.7 C (-16.1 F)

Wettest day (Rx1day)

The wettest day of the year at Ft Yates 4 SW, 1893 to 2000. The record is 119.4 mm (4.7 in) in 1937, marked on the chart; the median year is 38.4 mm (1.5 in).

Wettest day (Rx1day) at Ft Yates 4 SW by year
Year	Wettest day (Rx1day)
1893	38.6 mm (1.5 in)
1894	35.6 mm (1.4 in)
1895	53.3 mm (2.1 in)
1896	61.2 mm (2.4 in)
1897	30.5 mm (1.2 in)
1898	42.4 mm (1.7 in)
1899	50.8 mm (2.0 in)
1900	50.8 mm (2.0 in)
1902	35.6 mm (1.4 in)
1903	45.0 mm (1.8 in)
1904	55.1 mm (2.2 in)
1905	36.8 mm (1.4 in)
1906	32.0 mm (1.3 in)
1907	39.1 mm (1.5 in)
1908	14.0 mm (0.6 in)
1926	60.7 mm (2.4 in)
1927	91.2 mm (3.6 in)
1928	62.7 mm (2.5 in)
1929	31.8 mm (1.3 in)
1930	31.8 mm (1.3 in)
1931	40.9 mm (1.6 in)
1932	56.4 mm (2.2 in)
1933	28.2 mm (1.1 in)
1934	48.0 mm (1.9 in)
1935	31.0 mm (1.2 in)
1936	14.0 mm (0.6 in)
1937	119.4 mm (4.7 in)
1938	31.0 mm (1.2 in)
1939	53.3 mm (2.1 in)
1940	28.7 mm (1.1 in)
1941	50.3 mm (2.0 in)
1942	35.6 mm (1.4 in)
1943	70.1 mm (2.8 in)
1944	54.6 mm (2.1 in)
1945	38.1 mm (1.5 in)
1946	31.8 mm (1.3 in)
1947	50.8 mm (2.0 in)
1948	19.3 mm (0.8 in)
1949	64.3 mm (2.5 in)
1950	43.2 mm (1.7 in)
1951	37.1 mm (1.5 in)
1952	41.9 mm (1.6 in)
1953	35.1 mm (1.4 in)
1954	22.9 mm (0.9 in)
1955	33.5 mm (1.3 in)
1956	34.3 mm (1.4 in)
1957	59.7 mm (2.4 in)
1958	20.1 mm (0.8 in)
1959	25.4 mm (1.0 in)
1960	38.1 mm (1.5 in)
1961	31.2 mm (1.2 in)
1962	30.2 mm (1.2 in)
1963	33.0 mm (1.3 in)
1964	49.0 mm (1.9 in)
1965	62.7 mm (2.5 in)
1966	33.8 mm (1.3 in)
1967	19.8 mm (0.8 in)
1968	25.9 mm (1.0 in)
1969	25.4 mm (1.0 in)
1970	40.6 mm (1.6 in)
1971	66.8 mm (2.6 in)
1972	40.4 mm (1.6 in)
1973	34.3 mm (1.4 in)
1974	101.6 mm (4.0 in)
1975	41.4 mm (1.6 in)
1976	37.6 mm (1.5 in)
1977	30.7 mm (1.2 in)
1978	24.9 mm (1.0 in)
1979	24.1 mm (0.9 in)
1980	41.4 mm (1.6 in)
1981	33.8 mm (1.3 in)
1982	39.6 mm (1.6 in)
1983	20.3 mm (0.8 in)
1984	86.4 mm (3.4 in)
1985	31.5 mm (1.2 in)
1986	39.9 mm (1.6 in)
1987	44.5 mm (1.8 in)
1988	96.8 mm (3.8 in)
1989	51.1 mm (2.0 in)
1990	33.0 mm (1.3 in)
1991	32.3 mm (1.3 in)
1992	27.9 mm (1.1 in)
1993	48.8 mm (1.9 in)
1994	27.9 mm (1.1 in)
1995	57.9 mm (2.3 in)
1996	47.5 mm (1.9 in)
1997	55.9 mm (2.2 in)
1998	63.5 mm (2.5 in)
1999	79.2 mm (3.1 in)
2000	12.7 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ft Yates 4 SW, 1893 to 2000. The record is 143.6 mm (5.7 in) in 1937, marked on the chart; the median year is 58.9 mm (2.3 in).

Wettest five days (Rx5day) at Ft Yates 4 SW by year
Year	Wettest five days (Rx5day)
1893	63.0 mm (2.5 in)
1894	61.0 mm (2.4 in)
1895	45.7 mm (1.8 in)
1896	61.2 mm (2.4 in)
1897	58.4 mm (2.3 in)
1898	86.3 mm (3.4 in)
1899	63.7 mm (2.5 in)
1900	67.0 mm (2.6 in)
1902	43.5 mm (1.7 in)
1903	45.0 mm (1.8 in)
1904	95.5 mm (3.8 in)
1905	79.6 mm (3.1 in)
1906	56.9 mm (2.2 in)
1907	80.5 mm (3.2 in)
1908	16.3 mm (0.6 in)
1926	30.0 mm (1.2 in)
1927	102.9 mm (4.1 in)
1928	94.9 mm (3.7 in)
1929	35.8 mm (1.4 in)
1930	47.1 mm (1.9 in)
1931	53.9 mm (2.1 in)
1932	70.9 mm (2.8 in)
1933	28.2 mm (1.1 in)
1934	62.8 mm (2.5 in)
1935	69.6 mm (2.7 in)
1936	26.7 mm (1.1 in)
1937	143.6 mm (5.7 in)
1938	34.3 mm (1.4 in)
1939	58.9 mm (2.3 in)
1940	41.1 mm (1.6 in)
1941	94.3 mm (3.7 in)
1942	63.0 mm (2.5 in)
1943	122.3 mm (4.8 in)
1944	58.9 mm (2.3 in)
1945	36.8 mm (1.4 in)
1946	54.6 mm (2.1 in)
1947	55.9 mm (2.2 in)
1948	42.4 mm (1.7 in)
1949	78.7 mm (3.1 in)
1950	77.7 mm (3.1 in)
1951	43.7 mm (1.7 in)
1952	68.6 mm (2.7 in)
1953	67.4 mm (2.7 in)
1954	43.4 mm (1.7 in)
1955	97.0 mm (3.8 in)
1956	34.6 mm (1.4 in)
1957	61.7 mm (2.4 in)
1958	35.9 mm (1.4 in)
1959	34.3 mm (1.4 in)
1960	53.6 mm (2.1 in)
1961	50.6 mm (2.0 in)
1962	72.8 mm (2.9 in)
1963	34.8 mm (1.4 in)
1964	74.4 mm (2.9 in)
1965	68.3 mm (2.7 in)
1966	77.7 mm (3.1 in)
1967	32.2 mm (1.3 in)
1968	46.1 mm (1.8 in)
1969	48.6 mm (1.9 in)
1970	59.7 mm (2.4 in)
1971	78.8 mm (3.1 in)
1972	60.2 mm (2.4 in)
1973	49.4 mm (1.9 in)
1974	104.4 mm (4.1 in)
1975	41.4 mm (1.6 in)
1976	37.6 mm (1.5 in)
1977	59.2 mm (2.3 in)
1978	40.6 mm (1.6 in)
1979	40.4 mm (1.6 in)
1980	51.8 mm (2.0 in)
1981	52.9 mm (2.1 in)
1982	48.5 mm (1.9 in)
1983	32.3 mm (1.3 in)
1984	90.2 mm (3.6 in)
1985	34.0 mm (1.3 in)
1986	44.5 mm (1.8 in)
1987	75.0 mm (3.0 in)
1988	99.8 mm (3.9 in)
1989	72.1 mm (2.8 in)
1990	37.1 mm (1.5 in)
1991	59.4 mm (2.3 in)
1992	54.4 mm (2.1 in)
1993	69.1 mm (2.7 in)
1994	78.3 mm (3.1 in)
1995	95.5 mm (3.8 in)
1996	107.2 mm (4.2 in)
1997	55.9 mm (2.2 in)
1998	86.4 mm (3.4 in)
1999	100.5 mm (4.0 in)
2000	13.0 mm (0.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ft Yates 4 SW, 1893 to 2000. The record is 73 days in 1941, marked on the chart; the median year is 39 days.

Longest dry spell (CDD) at Ft Yates 4 SW by year
Year	Longest dry spell (CDD)
1893	38 days
1894	44 days
1895	62 days
1896	41 days
1897	25 days
1898	31 days
1899	33 days
1900	27 days
1902	49 days
1903	35 days
1904	28 days
1905	32 days
1906	32 days
1907	44 days
1908	29 days
1926	24 days
1927	38 days
1928	35 days
1929	19 days
1930	39 days
1931	17 days
1932	23 days
1933	37 days
1934	61 days
1935	40 days
1936	65 days
1937	41 days
1938	20 days
1939	41 days
1940	33 days
1941	73 days
1942	44 days
1943	49 days
1944	39 days
1945	31 days
1946	31 days
1947	29 days
1948	28 days
1949	41 days
1950	59 days
1951	48 days
1952	55 days
1953	26 days
1954	34 days
1955	32 days
1956	40 days
1957	23 days
1958	30 days
1959	30 days
1960	60 days
1961	60 days
1962	29 days
1963	47 days
1964	58 days
1965	51 days
1966	34 days
1967	33 days
1968	44 days
1969	46 days
1970	39 days
1971	20 days
1972	34 days
1973	22 days
1974	65 days
1975	49 days
1976	41 days
1977	31 days
1978	34 days
1979	63 days
1980	69 days
1981	57 days
1982	41 days
1983	58 days
1984	28 days
1985	37 days
1986	43 days
1987	35 days
1988	38 days
1989	43 days
1990	45 days
1991	47 days
1992	40 days
1993	36 days
1994	34 days
1995	56 days
1996	29 days
1997	48 days
1998	39 days
1999	61 days
2000	16 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

66 years with a frost

Across 66 years with a frost, the median last spring frost at Ft Yates 4 SW falls on 13 May and the median first autumn frost on 20 September, which leaves a median of 129 days between them.

In 1965 to 1999 the median growing season was 139 days. That is 15 days more than in 1896 to 1957.

Fitted over all years, the growing season changes by +2.3 days per decade at this station.

Frost dates and growing season at Ft Yates 4 SW
Measure	Median, all years	Earliest period (1896 to 1957)	Recent period (1965 to 1999)	Recent against earliest	Fitted trend
Last spring frost	13 May	16 May	10 May	6 days earlier	-1.1 days per decade
First autumn frost	20 September	17 September	25 September	8 days later	+1.3 days per decade
Growing days	129 days	124 days	139 days	15 days more	+2.3 days per decade

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.

Rainfall Return Levels

68 years, 1896 to 1999

A day with at least 38.2 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 114.9 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Ft Yates 4 SW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	38.2 mm (1.5 in)
5 years	54.3 mm (2.1 in)
10 years	66.5 mm (2.6 in)
25 years	84.0 mm (3.3 in)
50 years	98.7 mm (3.9 in)
100 years	114.9 mm (4.5 in)	Longer than the 68 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, 68 years of values from 1896 to 1999.

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: 119.4 mm (4.7 in) in 1937; 101.6 mm (4.0 in) in 1974; 96.8 mm (3.8 in) in 1988.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Ft Yates 4 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ft Yates 4 SW 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 2026-10-14 (14 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).