Umzimkulu (Tnk) Weather Records (SF002097660)

Record envelope, standing records and threshold days for Umzimkulu (Tnk) (SF002097660), South Africa, with 96 years of record.

Key Facts for Umzimkulu (Tnk)

Umzimkulu (Tnk) (SF002097660) is a weather station in South Africa at -30.27 latitude and 29.93 longitude, 732 m (2,402 ft) above sea level.
The station reports from 1885 to 1980, 96 years of record.
0 records set at Umzimkulu (Tnk) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Umzimkulu (Tnk) set a daily record precipitation of 37.5 mm (1.5 in) on 13 November 1979.

About the Station

Location: South Africa, -30.27 latitude, 29.93 longitude.
Elevation: 732 m (2,402 ft).
Period of record: 1885 to 1980, 96 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 Umzimkulu (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 Umzimkulu (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 Umzimkulu (Tnk) still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Umzimkulu (Tnk) between 17 May 1959 and 17 May 1959. Each dot is a new record.

Wettest Day of Each Month

May: 239.5 mm (9.4 in)

The wettest day on record for each calendar month at Umzimkulu (Tnk). The most was 239.5 mm (9.4 in) on 17 May 1959.

Record daily precipitation for each month at Umzimkulu (Tnk)
Month	Record daily precipitation (mm)	Date
Jan	77.0 mm (3.0 in)	9 January 1962
Feb	71.9 mm (2.8 in)	23 February 1939
Mar	93.5 mm (3.7 in)	16 March 1945
Apr	63.0 mm (2.5 in)	22 April 1978
May	239.5 mm (9.4 in)	17 May 1959
Jun	94.0 mm (3.7 in)	19 June 1964
Jul	53.3 mm (2.1 in)	21 July 1923
Aug	77.0 mm (3.0 in)	28 August 1970
Sep	71.9 mm (2.8 in)	30 September 1911
Oct	71.6 mm (2.8 in)	27 October 1917
Nov	99.1 mm (3.9 in)	24 November 1898
Dec	91.9 mm (3.6 in)	29 December 1930

Latest Records

Latest records at Umzimkulu (Tnk)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 November 1979	Umzimkulu (Tnk), ZA	daily rain	37.5 mm (1.5 in)	15.1 mm (0.6 in)	87 years	50 of 100 (Notable)
16 August 1979	Umzimkulu (Tnk), ZA	daily rain	6.0 mm (0.24 in)	3.0 mm (0.12 in)	48 years	20 of 100 (Routine)
20 July 1979	Umzimkulu (Tnk), ZA	daily rain	42.0 mm (1.7 in)	22.9 mm (0.9 in)	44 years	46 of 100 (Notable)
23 May 1979	Umzimkulu (Tnk), ZA	daily rain	8.5 mm (0.33 in)	2.7 mm (0.11 in)	68 years	20 of 100 (Routine)
25 February 1979	Umzimkulu (Tnk), ZA	daily rain	25.0 mm (1.0 in)	1.6 mm (0.06 in)	36 years	21 of 100 (Routine)
8 December 1978	Umzimkulu (Tnk), ZA	daily rain	37.5 mm (1.5 in)	3.7 mm (0.15 in)	28 years	20 of 100 (Routine)
11 November 1978	Umzimkulu (Tnk), ZA	daily rain	26.5 mm (1.0 in)	6.0 mm (0.24 in)	20 years	21 of 100 (Routine)
8 September 1978	Umzimkulu (Tnk), ZA	daily rain	32.0 mm (1.3 in)	11.4 mm (0.4 in)	56 years	38 of 100 (Notable)
2 May 1978	Umzimkulu (Tnk), ZA	daily rain	17.5 mm (0.7 in)	2.8 mm (0.11 in)	72 years	20 of 100 (Routine)
22 April 1978	Umzimkulu (Tnk), ZA	monthly rain	63.0 mm (2.5 in)	2.0 mm (0.08 in)	39 years	32 of 100 (Routine)
21 April 1978	Umzimkulu (Tnk), ZA	daily rain	31.5 mm (1.2 in)	6.9 mm (0.27 in)	59 years	33 of 100 (Routine)
15 January 1978	Umzimkulu (Tnk), ZA	daily rain	55.0 mm (2.2 in)	38.0 mm (1.5 in)	48 years	62 of 100 (Major)
30 December 1977	Umzimkulu (Tnk), ZA	daily rain	51.5 mm (2.0 in)	28.1 mm (1.1 in)	30 years	45 of 100 (Notable)
11 August 1977	Umzimkulu (Tnk), ZA	daily rain	9.5 mm (0.37 in)	3.9 mm (0.15 in)	47 years	20 of 100 (Routine)
30 June 1977	Umzimkulu (Tnk), ZA	daily rain	8.5 mm (0.33 in)	4.5 mm (0.18 in)	20 years	18 of 100 (Routine)
7 May 1977	Umzimkulu (Tnk), ZA	daily rain	36.5 mm (1.4 in)	30.1 mm (1.2 in)	68 years	44 of 100 (Notable)
7 April 1977	Umzimkulu (Tnk), ZA	daily rain	20.0 mm (0.8 in)	3.0 mm (0.12 in)	7 years	14 of 100 (Routine)
29 April 1976	Umzimkulu (Tnk), ZA	daily rain	23.2 mm (0.9 in)	0.3 mm (0.01 in)	87 years	20 of 100 (Routine)
20 March 1976	Umzimkulu (Tnk), ZA	daily rain	53.0 mm (2.1 in)	9.8 mm (0.39 in)	67 years	37 of 100 (Notable)
26 January 1976	Umzimkulu (Tnk), ZA	daily rain	41.5 mm (1.6 in)	1.4 mm (0.06 in)	48 years	24 of 100 (Routine)

Extremes by Year

1885 to 1980

Yearly extremes at Umzimkulu (Tnk): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	239.5 mm (9.4 in)	1959	49.5 mm (1.9 in)	96
Wettest five days (Rx5day)	304.5 mm (12.0 in)	1959	86.6 mm (3.4 in)	96
Longest dry spell (CDD)	261 days	1906	50 days	96

Wettest day (Rx1day)

The wettest day of the year at Umzimkulu (Tnk), 1885 to 1980. The record is 239.5 mm (9.4 in) in 1959, marked on the chart; the median year is 49.5 mm (1.9 in).

Wettest day (Rx1day) at Umzimkulu (Tnk) by year
Year	Wettest day (Rx1day)
1885	25.9 mm (1.0 in)
1886	40.6 mm (1.6 in)
1887	57.4 mm (2.3 in)
1888	38.6 mm (1.5 in)
1889	54.6 mm (2.1 in)
1890	54.6 mm (2.1 in)
1891	62.2 mm (2.4 in)
1892	85.9 mm (3.4 in)
1893	71.4 mm (2.8 in)
1894	30.5 mm (1.2 in)
1895	44.5 mm (1.8 in)
1896	44.5 mm (1.8 in)
1897	55.1 mm (2.2 in)
1898	99.1 mm (3.9 in)
1899	44.5 mm (1.8 in)
1900	36.8 mm (1.4 in)
1901	29.5 mm (1.2 in)
1902	69.9 mm (2.8 in)
1903	52.8 mm (2.1 in)
1904	28.2 mm (1.1 in)
1905	114.3 mm (4.5 in)
1906	43.2 mm (1.7 in)
1907	47.0 mm (1.9 in)
1908	60.5 mm (2.4 in)
1909	43.2 mm (1.7 in)
1910	50.0 mm (2.0 in)
1911	71.9 mm (2.8 in)
1912	41.9 mm (1.6 in)
1913	43.2 mm (1.7 in)
1914	37.6 mm (1.5 in)
1915	41.9 mm (1.6 in)
1916	47.2 mm (1.9 in)
1917	71.6 mm (2.8 in)
1918	56.4 mm (2.2 in)
1919	37.3 mm (1.5 in)
1920	59.7 mm (2.4 in)
1921	50.8 mm (2.0 in)
1922	44.2 mm (1.7 in)
1923	64.3 mm (2.5 in)
1924	50.0 mm (2.0 in)
1925	79.2 mm (3.1 in)
1926	40.1 mm (1.6 in)
1927	71.4 mm (2.8 in)
1928	43.9 mm (1.7 in)
1929	34.0 mm (1.3 in)
1930	92.2 mm (3.6 in)
1931	47.0 mm (1.9 in)
1932	52.3 mm (2.1 in)
1933	40.6 mm (1.6 in)
1934	46.7 mm (1.8 in)
1935	34.8 mm (1.4 in)
1936	50.8 mm (2.0 in)
1937	49.0 mm (1.9 in)
1938	63.2 mm (2.5 in)
1939	71.9 mm (2.8 in)
1940	54.6 mm (2.1 in)
1941	45.7 mm (1.8 in)
1942	43.2 mm (1.7 in)
1943	54.1 mm (2.1 in)
1944	42.4 mm (1.7 in)
1945	93.5 mm (3.7 in)
1946	34.3 mm (1.4 in)
1947	60.2 mm (2.4 in)
1948	39.6 mm (1.6 in)
1949	28.7 mm (1.1 in)
1950	49.0 mm (1.9 in)
1951	43.7 mm (1.7 in)
1952	38.6 mm (1.5 in)
1953	62.2 mm (2.4 in)
1954	49.0 mm (1.9 in)
1955	31.0 mm (1.2 in)
1956	38.0 mm (1.5 in)
1957	55.0 mm (2.2 in)
1958	65.5 mm (2.6 in)
1959	239.5 mm (9.4 in)
1960	51.0 mm (2.0 in)
1961	67.0 mm (2.6 in)
1962	77.0 mm (3.0 in)
1963	64.0 mm (2.5 in)
1964	94.0 mm (3.7 in)
1965	42.0 mm (1.7 in)
1966	55.0 mm (2.2 in)
1967	76.5 mm (3.0 in)
1968	30.0 mm (1.2 in)
1969	44.0 mm (1.7 in)
1970	77.0 mm (3.0 in)
1971	37.0 mm (1.5 in)
1972	41.0 mm (1.6 in)
1973	66.5 mm (2.6 in)
1974	62.5 mm (2.5 in)
1975	42.5 mm (1.7 in)
1976	53.0 mm (2.1 in)
1977	51.5 mm (2.0 in)
1978	63.0 mm (2.5 in)
1979	42.0 mm (1.7 in)
1980	29.5 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Umzimkulu (Tnk), 1885 to 1980. The record is 304.5 mm (12.0 in) in 1959, marked on the chart; the median year is 86.6 mm (3.4 in).

Wettest five days (Rx5day) at Umzimkulu (Tnk) by year
Year	Wettest five days (Rx5day)
1885	56.1 mm (2.2 in)
1886	50.8 mm (2.0 in)
1887	75.9 mm (3.0 in)
1888	70.3 mm (2.8 in)
1889	63.5 mm (2.5 in)
1890	91.4 mm (3.6 in)
1891	97.4 mm (3.8 in)
1892	92.5 mm (3.6 in)
1893	106.0 mm (4.2 in)
1894	51.1 mm (2.0 in)
1895	109.1 mm (4.3 in)
1896	100.6 mm (4.0 in)
1897	71.9 mm (2.8 in)
1898	195.4 mm (7.7 in)
1899	80.5 mm (3.2 in)
1900	68.0 mm (2.7 in)
1901	66.7 mm (2.6 in)
1902	89.0 mm (3.5 in)
1903	54.8 mm (2.2 in)
1904	76.2 mm (3.0 in)
1905	135.1 mm (5.3 in)
1906	77.2 mm (3.0 in)
1907	81.3 mm (3.2 in)
1908	102.7 mm (4.0 in)
1909	60.9 mm (2.4 in)
1910	90.6 mm (3.6 in)
1911	144.1 mm (5.7 in)
1912	56.4 mm (2.2 in)
1913	98.8 mm (3.9 in)
1914	63.1 mm (2.5 in)
1915	78.7 mm (3.1 in)
1916	59.9 mm (2.4 in)
1917	127.2 mm (5.0 in)
1918	98.9 mm (3.9 in)
1919	65.3 mm (2.6 in)
1920	114.2 mm (4.5 in)
1921	105.9 mm (4.2 in)
1922	71.9 mm (2.8 in)
1923	133.6 mm (5.3 in)
1924	72.8 mm (2.9 in)
1925	127.5 mm (5.0 in)
1926	51.5 mm (2.0 in)
1927	93.7 mm (3.7 in)
1928	59.2 mm (2.3 in)
1929	55.9 mm (2.2 in)
1930	106.7 mm (4.2 in)
1931	112.9 mm (4.4 in)
1932	74.1 mm (2.9 in)
1933	69.5 mm (2.7 in)
1934	71.8 mm (2.8 in)
1935	103.1 mm (4.1 in)
1936	91.7 mm (3.6 in)
1937	79.0 mm (3.1 in)
1938	83.8 mm (3.3 in)
1939	101.0 mm (4.0 in)
1940	99.0 mm (3.9 in)
1941	55.3 mm (2.2 in)
1942	64.8 mm (2.6 in)
1943	89.9 mm (3.5 in)
1944	92.3 mm (3.6 in)
1945	146.4 mm (5.8 in)
1946	62.2 mm (2.4 in)
1947	72.4 mm (2.9 in)
1948	91.7 mm (3.6 in)
1949	58.3 mm (2.3 in)
1950	100.8 mm (4.0 in)
1951	91.9 mm (3.6 in)
1952	59.7 mm (2.4 in)
1953	79.7 mm (3.1 in)
1954	66.0 mm (2.6 in)
1955	104.2 mm (4.1 in)
1956	87.6 mm (3.4 in)
1957	70.5 mm (2.8 in)
1958	85.5 mm (3.4 in)
1959	304.5 mm (12.0 in)
1960	54.9 mm (2.2 in)
1961	118.0 mm (4.6 in)
1962	88.5 mm (3.5 in)
1963	104.6 mm (4.1 in)
1964	117.5 mm (4.6 in)
1965	77.4 mm (3.0 in)
1966	128.1 mm (5.0 in)
1967	105.6 mm (4.2 in)
1968	45.3 mm (1.8 in)
1969	96.1 mm (3.8 in)
1970	137.6 mm (5.4 in)
1971	61.5 mm (2.4 in)
1972	59.5 mm (2.3 in)
1973	88.0 mm (3.5 in)
1974	135.5 mm (5.3 in)
1975	88.0 mm (3.5 in)
1976	122.3 mm (4.8 in)
1977	57.0 mm (2.2 in)
1978	94.5 mm (3.7 in)
1979	53.0 mm (2.1 in)
1980	55.5 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Umzimkulu (Tnk), 1885 to 1980. The record is 261 days in 1906, marked on the chart; the median year is 50 days.

Longest dry spell (CDD) at Umzimkulu (Tnk) by year
Year	Longest dry spell (CDD)
1885	10 days
1886	18 days
1887	28 days
1888	65 days
1889	80 days
1890	45 days
1891	21 days
1892	66 days
1893	35 days
1894	85 days
1895	43 days
1896	74 days
1897	76 days
1898	39 days
1899	45 days
1900	61 days
1901	42 days
1902	56 days
1903	44 days
1904	93 days
1905	147 days
1906	261 days
1907	60 days
1908	68 days
1909	36 days
1910	27 days
1911	46 days
1912	39 days
1913	31 days
1914	35 days
1915	32 days
1916	77 days
1917	29 days
1918	43 days
1919	92 days
1920	102 days
1921	42 days
1922	26 days
1923	50 days
1924	42 days
1925	83 days
1926	67 days
1927	69 days
1928	93 days
1929	42 days
1930	57 days
1931	41 days
1932	47 days
1933	114 days
1934	50 days
1935	73 days
1936	57 days
1937	98 days
1938	40 days
1939	28 days
1940	50 days
1941	59 days
1942	81 days
1943	26 days
1944	43 days
1945	110 days
1946	45 days
1947	33 days
1948	120 days
1949	55 days
1950	23 days
1951	88 days
1952	34 days
1953	25 days
1954	33 days
1955	90 days
1956	39 days
1957	50 days
1958	56 days
1959	36 days
1960	49 days
1961	68 days
1962	108 days
1963	60 days
1964	28 days
1965	37 days
1966	40 days
1967	53 days
1968	53 days
1969	47 days
1970	97 days
1971	33 days
1972	34 days
1973	70 days
1974	41 days
1975	139 days
1976	64 days
1977	53 days
1978	109 days
1979	57 days
1980	7 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

88 years, 1887 to 1979

A day with at least 49.4 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 149.3 mm (5.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Umzimkulu (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	49.4 mm (1.9 in)
5 years	66.7 mm (2.6 in)
10 years	81.2 mm (3.2 in)
25 years	104.0 mm (4.1 in)
50 years	124.8 mm (4.9 in)
100 years	149.3 mm (5.9 in)	Longer than the 88 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, 88 years of values from 1887 to 1979.

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: 239.5 mm (9.4 in) in 1959; 114.3 mm (4.5 in) in 1905; 99.1 mm (3.9 in) in 1898.

Download the Data

Data for Umzimkulu (Tnk) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Umzimkulu (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 2026-10-12 (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).

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