Willowvale (Tnk) Weather Records (SF001038860)

Record envelope, standing records and threshold days for Willowvale (Tnk) (SF001038860), South Africa, with 109 years of record.

Key Facts for Willowvale (Tnk)

Willowvale (Tnk) (SF001038860) is a weather station in South Africa at -32.27 latitude and 28.50 longitude, 590 m (1,936 ft) above sea level.
The station reports from 1889 to 1997, 109 years of record.
0 records set at Willowvale (Tnk) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Willowvale (Tnk) set a daily record precipitation of 18.0 mm (0.7 in) on 26 July 1997.

About the Station

Location: South Africa, -32.27 latitude, 28.50 longitude.
Elevation: 590 m (1,936 ft).
Period of record: 1889 to 1997, 109 years.
Eligible elements: prcp.

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 Willowvale (Tnk). 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 Willowvale (Tnk), 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	n/a	n/a	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

0 standing records

0 records at Willowvale (Tnk) still stand.

All-Time Record Progression

4 new records

4 all-time records were set at Willowvale (Tnk) between 6 July 1931 and 13 June 1997. Each dot is a new record.

When Willowvale (Tnk) set new all-time records
Date	Kind	Detail
1931-07-06	Record daily precipitation	Record daily precipitation 151.6 mm (6.0 in)
1956-11-01	Record daily precipitation	Record daily precipitation 241.2 mm (9.5 in)
1959-05-16	Record daily precipitation	Record daily precipitation 246.0 mm (9.7 in)
1997-06-13	Record daily precipitation	Record daily precipitation 283.2 mm (11.1 in)

Wettest Day of Each Month

Jun: 283.2 mm (11.1 in)

The wettest day on record for each calendar month at Willowvale (Tnk). The most was 283.2 mm (11.1 in) on 13 June 1997.

Record daily precipitation for each month at Willowvale (Tnk)
Month	Record daily precipitation (mm)	Date
Jan	108.0 mm (4.3 in)	10 January 1904
Feb	112.5 mm (4.4 in)	9 February 1985
Mar	119.0 mm (4.7 in)	12 March 1963
Apr	230.5 mm (9.1 in)	21 April 1978
May	246.0 mm (9.7 in)	16 May 1959
Jun	283.2 mm (11.1 in)	13 June 1997
Jul	151.6 mm (6.0 in)	6 July 1931
Aug	114.0 mm (4.5 in)	20 August 1971
Sep	137.0 mm (5.4 in)	15 September 1964
Oct	116.6 mm (4.6 in)	10 October 1905
Nov	241.2 mm (9.5 in)	1 November 1956
Dec	114.6 mm (4.5 in)	25 December 1994

Latest Records

Latest records at Willowvale (Tnk)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 July 1997	Willowvale (Tnk), ZA	daily rain	18.0 mm (0.7 in)	12.0 mm (0.5 in)	24 years	20 of 100 (Routine)
13 June 1997	Willowvale (Tnk), ZA	all-time rain	283.2 mm (11.1 in)	37.2 mm (1.5 in)	38 years	63 of 100 (Major)
12 June 1997	Willowvale (Tnk), ZA	monthly rain	165.1 mm (6.5 in)	32.0 mm (1.3 in)	95 years	66 of 100 (Major)
7 April 1997	Willowvale (Tnk), ZA	daily rain	20.2 mm (0.8 in)	2.2 mm (0.09 in)	15 years	15 of 100 (Routine)
6 April 1997	Willowvale (Tnk), ZA	daily rain	60.5 mm (2.4 in)	9.5 mm (0.37 in)	30 years	24 of 100 (Routine)
31 December 1996	Willowvale (Tnk), ZA	daily rain	33.3 mm (1.3 in)	4.6 mm (0.18 in)	58 years	30 of 100 (Routine)
17 November 1996	Willowvale (Tnk), ZA	daily rain	50.7 mm (2.0 in)	13.1 mm (0.5 in)	70 years	38 of 100 (Notable)
6 November 1996	Willowvale (Tnk), ZA	daily rain	52.1 mm (2.1 in)	15.6 mm (0.6 in)	43 years	31 of 100 (Routine)
5 January 1996	Willowvale (Tnk), ZA	daily rain	32.7 mm (1.3 in)	0.7 mm (0.03 in)	30 years	19 of 100 (Routine)
17 December 1995	Willowvale (Tnk), ZA	daily rain	65.5 mm (2.6 in)	32.5 mm (1.3 in)	72 years	55 of 100 (Notable)
30 November 1995	Willowvale (Tnk), ZA	daily rain	41.8 mm (1.6 in)	11.8 mm (0.5 in)	33 years	27 of 100 (Routine)
17 September 1995	Willowvale (Tnk), ZA	daily rain	26.4 mm (1.0 in)	3.0 mm (0.12 in)	50 years	26 of 100 (Routine)
13 September 1995	Willowvale (Tnk), ZA	daily rain	42.5 mm (1.7 in)	8.9 mm (0.35 in)	41 years	27 of 100 (Routine)
9 April 1995	Willowvale (Tnk), ZA	daily rain	40.6 mm (1.6 in)	2.6 mm (0.10 in)	28 years	19 of 100 (Routine)
5 March 1995	Willowvale (Tnk), ZA	daily rain	59.6 mm (2.3 in)	24.6 mm (1.0 in)	33 years	36 of 100 (Notable)
14 January 1995	Willowvale (Tnk), ZA	daily rain	69.5 mm (2.7 in)	25.0 mm (1.0 in)	51 years	45 of 100 (Notable)
25 December 1994	Willowvale (Tnk), ZA	monthly rain	114.6 mm (4.5 in)	14.6 mm (0.6 in)	12 years	34 of 100 (Routine)
24 December 1994	Willowvale (Tnk), ZA	daily rain	50.4 mm (2.0 in)	17.9 mm (0.7 in)	5 years	24 of 100 (Routine)
9 December 1994	Willowvale (Tnk), ZA	daily rain	36.4 mm (1.4 in)	2.3 mm (0.09 in)	3 years	11 of 100 (Routine)
4 August 1994	Willowvale (Tnk), ZA	daily rain	19.4 mm (0.8 in)	9.9 mm (0.39 in)	37 years	20 of 100 (Routine)

Extremes by Year

1889 to 1997

Yearly extremes at Willowvale (Tnk): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	283.2 mm (11.1 in)	1997	72.4 mm (2.9 in)	109
Wettest five days (Rx5day)	448.3 mm (17.6 in)	1997	141.0 mm (5.6 in)	109
Longest dry spell (CDD)	119 days	1946	43 days	109

Wettest day (Rx1day)

The wettest day of the year at Willowvale (Tnk), 1889 to 1997. The record is 283.2 mm (11.1 in) in 1997, marked on the chart; the median year is 72.4 mm (2.9 in).

Wettest day (Rx1day) at Willowvale (Tnk) by year
Year	Wettest day (Rx1day)
1889	34.5 mm (1.4 in)
1890	59.9 mm (2.4 in)
1891	80.0 mm (3.1 in)
1892	87.6 mm (3.4 in)
1893	107.4 mm (4.2 in)
1894	61.2 mm (2.4 in)
1895	59.7 mm (2.4 in)
1896	65.5 mm (2.6 in)
1897	114.3 mm (4.5 in)
1898	69.9 mm (2.8 in)
1899	76.2 mm (3.0 in)
1900	83.8 mm (3.3 in)
1901	82.3 mm (3.2 in)
1902	133.1 mm (5.2 in)
1903	81.8 mm (3.2 in)
1904	108.0 mm (4.3 in)
1905	116.6 mm (4.6 in)
1906	81.3 mm (3.2 in)
1907	52.1 mm (2.1 in)
1908	53.3 mm (2.1 in)
1909	67.6 mm (2.7 in)
1910	69.1 mm (2.7 in)
1911	80.8 mm (3.2 in)
1912	42.9 mm (1.7 in)
1913	90.2 mm (3.6 in)
1914	67.8 mm (2.7 in)
1915	71.6 mm (2.8 in)
1916	32.5 mm (1.3 in)
1917	95.5 mm (3.8 in)
1918	51.6 mm (2.0 in)
1919	65.3 mm (2.6 in)
1920	46.5 mm (1.8 in)
1921	63.5 mm (2.5 in)
1922	125.7 mm (4.9 in)
1923	113.0 mm (4.4 in)
1924	69.9 mm (2.8 in)
1925	68.3 mm (2.7 in)
1926	49.0 mm (1.9 in)
1927	64.3 mm (2.5 in)
1928	61.0 mm (2.4 in)
1929	56.4 mm (2.2 in)
1930	58.2 mm (2.3 in)
1931	151.6 mm (6.0 in)
1932	88.9 mm (3.5 in)
1933	65.3 mm (2.6 in)
1934	59.2 mm (2.3 in)
1935	72.4 mm (2.9 in)
1936	64.5 mm (2.5 in)
1937	45.5 mm (1.8 in)
1938	57.2 mm (2.3 in)
1939	77.7 mm (3.1 in)
1940	78.7 mm (3.1 in)
1941	75.2 mm (3.0 in)
1942	93.7 mm (3.7 in)
1943	76.2 mm (3.0 in)
1944	112.3 mm (4.4 in)
1945	61.0 mm (2.4 in)
1946	66.0 mm (2.6 in)
1947	117.3 mm (4.6 in)
1948	113.0 mm (4.4 in)
1949	112.3 mm (4.4 in)
1950	79.0 mm (3.1 in)
1951	62.2 mm (2.4 in)
1952	63.5 mm (2.5 in)
1953	74.0 mm (2.9 in)
1954	53.0 mm (2.1 in)
1955	52.5 mm (2.1 in)
1956	241.2 mm (9.5 in)
1957	72.5 mm (2.9 in)
1958	67.5 mm (2.7 in)
1959	246.0 mm (9.7 in)
1960	49.0 mm (1.9 in)
1961	74.0 mm (2.9 in)
1962	63.0 mm (2.5 in)
1963	119.0 mm (4.7 in)
1964	137.0 mm (5.4 in)
1965	69.0 mm (2.7 in)
1966	152.0 mm (6.0 in)
1967	69.0 mm (2.7 in)
1968	43.5 mm (1.7 in)
1969	55.0 mm (2.2 in)
1970	103.0 mm (4.1 in)
1971	114.0 mm (4.5 in)
1972	79.0 mm (3.1 in)
1973	84.0 mm (3.3 in)
1974	51.0 mm (2.0 in)
1975	69.0 mm (2.7 in)
1976	86.5 mm (3.4 in)
1977	95.0 mm (3.7 in)
1978	230.5 mm (9.1 in)
1979	108.0 mm (4.3 in)
1980	47.0 mm (1.9 in)
1981	85.5 mm (3.4 in)
1982	100.0 mm (3.9 in)
1983	95.5 mm (3.8 in)
1984	59.0 mm (2.3 in)
1985	130.0 mm (5.1 in)
1986	64.5 mm (2.5 in)
1987	88.0 mm (3.5 in)
1988	63.3 mm (2.5 in)
1989	77.4 mm (3.0 in)
1990	58.4 mm (2.3 in)
1991	59.7 mm (2.4 in)
1992	45.9 mm (1.8 in)
1993	105.2 mm (4.1 in)
1994	114.6 mm (4.5 in)
1995	69.5 mm (2.7 in)
1996	52.1 mm (2.1 in)
1997	283.2 mm (11.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Willowvale (Tnk), 1889 to 1997. The record is 448.3 mm (17.6 in) in 1997, marked on the chart; the median year is 141.0 mm (5.6 in).

Wettest five days (Rx5day) at Willowvale (Tnk) by year
Year	Wettest five days (Rx5day)
1889	76.4 mm (3.0 in)
1890	116.8 mm (4.6 in)
1891	129.0 mm (5.1 in)
1892	153.9 mm (6.1 in)
1893	225.0 mm (8.9 in)
1894	92.7 mm (3.6 in)
1895	106.4 mm (4.2 in)
1896	124.0 mm (4.9 in)
1897	178.6 mm (7.0 in)
1898	184.4 mm (7.3 in)
1899	143.0 mm (5.6 in)
1900	226.3 mm (8.9 in)
1901	191.2 mm (7.5 in)
1902	191.5 mm (7.5 in)
1903	135.7 mm (5.3 in)
1904	189.7 mm (7.5 in)
1905	207.8 mm (8.2 in)
1906	138.2 mm (5.4 in)
1907	102.9 mm (4.1 in)
1908	116.4 mm (4.6 in)
1909	117.4 mm (4.6 in)
1910	189.0 mm (7.4 in)
1911	278.4 mm (11.0 in)
1912	65.8 mm (2.6 in)
1913	176.6 mm (7.0 in)
1914	112.8 mm (4.4 in)
1915	116.9 mm (4.6 in)
1916	63.8 mm (2.5 in)
1917	188.5 mm (7.4 in)
1918	72.9 mm (2.9 in)
1919	119.5 mm (4.7 in)
1920	116.6 mm (4.6 in)
1921	96.3 mm (3.8 in)
1922	193.8 mm (7.6 in)
1923	233.2 mm (9.2 in)
1924	139.8 mm (5.5 in)
1925	168.9 mm (6.6 in)
1926	102.9 mm (4.1 in)
1927	212.8 mm (8.4 in)
1928	176.0 mm (6.9 in)
1929	114.0 mm (4.5 in)
1930	130.5 mm (5.1 in)
1931	226.5 mm (8.9 in)
1932	141.0 mm (5.6 in)
1933	92.2 mm (3.6 in)
1934	120.2 mm (4.7 in)
1935	136.0 mm (5.4 in)
1936	152.4 mm (6.0 in)
1937	69.3 mm (2.7 in)
1938	89.2 mm (3.5 in)
1939	116.9 mm (4.6 in)
1940	112.2 mm (4.4 in)
1941	95.2 mm (3.7 in)
1942	190.0 mm (7.5 in)
1943	126.0 mm (5.0 in)
1944	209.3 mm (8.2 in)
1945	111.0 mm (4.4 in)
1946	124.4 mm (4.9 in)
1947	150.6 mm (5.9 in)
1948	204.2 mm (8.0 in)
1949	186.3 mm (7.3 in)
1950	157.0 mm (6.2 in)
1951	132.6 mm (5.2 in)
1952	100.4 mm (4.0 in)
1953	159.6 mm (6.3 in)
1954	119.0 mm (4.7 in)
1955	141.5 mm (5.6 in)
1956	395.7 mm (15.6 in)
1957	88.0 mm (3.5 in)
1958	142.0 mm (5.6 in)
1959	364.0 mm (14.3 in)
1960	92.1 mm (3.6 in)
1961	240.5 mm (9.5 in)
1962	105.5 mm (4.2 in)
1963	310.3 mm (12.2 in)
1964	160.4 mm (6.3 in)
1965	174.0 mm (6.9 in)
1966	165.0 mm (6.5 in)
1967	146.4 mm (5.8 in)
1968	62.0 mm (2.4 in)
1969	105.0 mm (4.1 in)
1970	222.0 mm (8.7 in)
1971	181.0 mm (7.1 in)
1972	164.0 mm (6.5 in)
1973	131.0 mm (5.2 in)
1974	78.0 mm (3.1 in)
1975	189.5 mm (7.5 in)
1976	217.0 mm (8.5 in)
1977	147.5 mm (5.8 in)
1978	348.0 mm (13.7 in)
1979	330.0 mm (13.0 in)
1980	81.0 mm (3.2 in)
1981	249.5 mm (9.8 in)
1982	104.5 mm (4.1 in)
1983	140.0 mm (5.5 in)
1984	85.8 mm (3.4 in)
1985	329.0 mm (13.0 in)
1986	117.5 mm (4.6 in)
1987	270.0 mm (10.6 in)
1988	141.7 mm (5.6 in)
1989	173.4 mm (6.8 in)
1990	121.9 mm (4.8 in)
1991	122.7 mm (4.8 in)
1992	86.0 mm (3.4 in)
1993	176.0 mm (6.9 in)
1994	210.0 mm (8.3 in)
1995	124.5 mm (4.9 in)
1996	111.9 mm (4.4 in)
1997	448.3 mm (17.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Willowvale (Tnk), 1889 to 1997. The record is 119 days in 1946, marked on the chart; the median year is 43 days.

Longest dry spell (CDD) at Willowvale (Tnk) by year
Year	Longest dry spell (CDD)
1889	13 days
1890	46 days
1891	21 days
1892	40 days
1893	35 days
1894	46 days
1895	38 days
1896	27 days
1897	66 days
1898	48 days
1899	29 days
1900	37 days
1901	34 days
1902	36 days
1903	43 days
1904	104 days
1905	39 days
1906	47 days
1907	92 days
1908	25 days
1909	55 days
1910	48 days
1911	36 days
1912	36 days
1913	52 days
1914	34 days
1915	34 days
1916	106 days
1917	31 days
1918	34 days
1919	32 days
1920	45 days
1921	44 days
1922	27 days
1923	50 days
1924	26 days
1925	21 days
1926	62 days
1927	43 days
1928	88 days
1929	19 days
1930	27 days
1931	34 days
1932	28 days
1933	38 days
1934	32 days
1935	38 days
1936	46 days
1937	30 days
1938	18 days
1939	44 days
1940	39 days
1941	44 days
1942	64 days
1943	58 days
1944	48 days
1945	79 days
1946	119 days
1947	19 days
1948	56 days
1949	91 days
1950	45 days
1951	33 days
1952	27 days
1953	53 days
1954	31 days
1955	43 days
1956	31 days
1957	87 days
1958	82 days
1959	50 days
1960	66 days
1961	49 days
1962	105 days
1963	40 days
1964	52 days
1965	22 days
1966	84 days
1967	29 days
1968	32 days
1969	34 days
1970	31 days
1971	34 days
1972	43 days
1973	42 days
1974	24 days
1975	57 days
1976	41 days
1977	52 days
1978	62 days
1979	43 days
1980	35 days
1981	49 days
1982	60 days
1983	40 days
1984	39 days
1985	70 days
1986	29 days
1987	72 days
1988	29 days
1989	51 days
1990	63 days
1991	44 days
1992	104 days
1993	62 days
1994	84 days
1995	48 days
1996	43 days
1997	50 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

102 years, 1890 to 1997

A day with at least 73.6 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 255.5 mm (10.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Willowvale (Tnk): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	73.6 mm (2.9 in)
5 years	102.8 mm (4.0 in)
10 years	128.2 mm (5.0 in)
25 years	169.4 mm (6.7 in)
50 years	208.2 mm (8.2 in)
100 years	255.5 mm (10.1 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 102 years of values from 1890 to 1997.

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: 283.2 mm (11.1 in) in 1997; 246.0 mm (9.7 in) in 1959; 241.2 mm (9.5 in) in 1956.

Download the Data

Data for Willowvale (Tnk) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Willowvale (Tnk) 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 2026-10-13 (13 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).

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	n/a	n/a	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

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	n/a	n/a	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