Ndumu Weather Records (SF004474460)

Record envelope, standing records and threshold days for Ndumu (SF004474460), South Africa, with 79 years of record.

Key Facts for Ndumu

Ndumu (SF004474460) is a weather station in South Africa at -26.93 latitude and 32.25 longitude, 64 m (210 ft) above sea level.
The station reports from 1919 to 1997, 79 years of record.
0 records set at Ndumu still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Ndumu set a daily record precipitation of 9.5 mm (0.37 in) on 24 October 1997.

About the Station

Location: South Africa, -26.93 latitude, 32.25 longitude.
Elevation: 64 m (210 ft).
Period of record: 1919 to 1997, 79 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 Ndumu. 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 Ndumu, 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 Ndumu still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Ndumu between 7 January 1966 and 24 January 1974. Each dot is a new record.

When Ndumu set new all-time records
Date	Kind	Detail
1966-01-07	Record daily precipitation	Record daily precipitation 174.0 mm (6.9 in)
1974-01-24	Record daily precipitation	Record daily precipitation 247.0 mm (9.7 in)

Wettest Day of Each Month

Jan: 247.0 mm (9.7 in)

The wettest day on record for each calendar month at Ndumu. The most was 247.0 mm (9.7 in) on 24 January 1974.

Record daily precipitation for each month at Ndumu
Month	Record daily precipitation (mm)	Date
Jan	247.0 mm (9.7 in)	24 January 1974
Feb	160.0 mm (6.3 in)	4 February 1939
Mar	133.0 mm (5.2 in)	7 March 1968
Apr	69.5 mm (2.7 in)	2 April 1978
May	95.0 mm (3.7 in)	21 May 1954
Jun	99.1 mm (3.9 in)	2 June 1942
Jul	114.3 mm (4.5 in)	16 July 1942
Aug	81.0 mm (3.2 in)	5 August 1997
Sep	128.0 mm (5.0 in)	30 September 1973
Oct	64.0 mm (2.5 in)	10 October 1954
Nov	100.0 mm (3.9 in)	15 November 1990
Dec	160.8 mm (6.3 in)	31 December 1938

Latest Records

Latest records at Ndumu
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 October 1997	Ndumu, ZA	daily rain	9.5 mm (0.37 in)	0.6 mm (0.02 in)	60 years	20 of 100 (Routine)
5 August 1997	Ndumu, ZA	monthly rain	81.0 mm (3.2 in)	36.5 mm (1.4 in)	45 years	65 of 100 (Major)
1 August 1997	Ndumu, ZA	daily rain	30.0 mm (1.2 in)	30.0 mm (1.2 in)	78 years	59 of 100 (Notable)
31 July 1997	Ndumu, ZA	daily rain	21.0 mm (0.8 in)	20.4 mm (0.8 in)	36 years	20 of 100 (Routine)
18 July 1997	Ndumu, ZA	daily rain	15.0 mm (0.6 in)	12.2 mm (0.5 in)	58 years	20 of 100 (Routine)
26 May 1997	Ndumu, ZA	daily rain	13.0 mm (0.5 in)	10.9 mm (0.4 in)	14 years	17 of 100 (Routine)
4 March 1997	Ndumu, ZA	daily rain (Tie)	17.0 mm (0.7 in)	tie	28 years	3 of 100 (Routine)
12 January 1997	Ndumu, ZA	daily rain	75.0 mm (3.0 in)	26.5 mm (1.0 in)	26 years	23 of 100 (Routine)
14 December 1996	Ndumu, ZA	daily rain	73.0 mm (2.9 in)	23.0 mm (0.9 in)	7 years	19 of 100 (Routine)
23 October 1996	Ndumu, ZA	daily rain	53.5 mm (2.1 in)	20.5 mm (0.8 in)	3 years	24 of 100 (Routine)
7 August 1996	Ndumu, ZA	daily rain	8.3 mm (0.33 in)	8.1 mm (0.32 in)	13 years	17 of 100 (Routine)
15 May 1996	Ndumu, ZA	daily rain	31.5 mm (1.2 in)	5.0 mm (0.20 in)	24 years	17 of 100 (Routine)
1 April 1996	Ndumu, ZA	daily rain	41.0 mm (1.6 in)	13.1 mm (0.5 in)	67 years	36 of 100 (Notable)
25 February 1996	Ndumu, ZA	daily rain	35.0 mm (1.4 in)	10.6 mm (0.4 in)	76 years	35 of 100 (Notable)
9 February 1996	Ndumu, ZA	daily rain	69.9 mm (2.8 in)	24.6 mm (1.0 in)	10 years	23 of 100 (Routine)
16 December 1995	Ndumu, ZA	daily rain	94.0 mm (3.7 in)	32.5 mm (1.3 in)	32 years	31 of 100 (Routine)
15 December 1995	Ndumu, ZA	daily rain	50.0 mm (2.0 in)	16.0 mm (0.6 in)	6 years	16 of 100 (Routine)
10 August 1995	Ndumu, ZA	daily rain	8.0 mm (0.31 in)	6.0 mm (0.24 in)	26 years	20 of 100 (Routine)
7 May 1995	Ndumu, ZA	daily rain	39.5 mm (1.6 in)	6.5 mm (0.26 in)	73 years	33 of 100 (Routine)
2 May 1995	Ndumu, ZA	daily rain	30.0 mm (1.2 in)	18.0 mm (0.7 in)	25 years	25 of 100 (Routine)

Extremes by Year

1919 to 1997

Yearly extremes at Ndumu: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	247.0 mm (9.7 in)	1974	73.0 mm (2.9 in)	79
Wettest five days (Rx5day)	460.9 mm (18.1 in)	1984	98.2 mm (3.9 in)	79
Longest dry spell (CDD)	175 days	1946	68 days	79

Wettest day (Rx1day)

The wettest day of the year at Ndumu, 1919 to 1997. The record is 247.0 mm (9.7 in) in 1974, marked on the chart; the median year is 73.0 mm (2.9 in).

Wettest day (Rx1day) at Ndumu by year
Year	Wettest day (Rx1day)
1919	77.5 mm (3.1 in)
1920	103.6 mm (4.1 in)
1921	57.2 mm (2.3 in)
1922	27.7 mm (1.1 in)
1923	90.7 mm (3.6 in)
1924	55.1 mm (2.2 in)
1925	77.5 mm (3.1 in)
1926	62.2 mm (2.4 in)
1927	57.2 mm (2.3 in)
1928	40.9 mm (1.6 in)
1929	76.2 mm (3.0 in)
1930	53.8 mm (2.1 in)
1931	48.3 mm (1.9 in)
1932	53.8 mm (2.1 in)
1933	45.2 mm (1.8 in)
1934	58.4 mm (2.3 in)
1935	52.3 mm (2.1 in)
1936	82.6 mm (3.3 in)
1937	63.5 mm (2.5 in)
1938	160.8 mm (6.3 in)
1939	160.0 mm (6.3 in)
1940	74.4 mm (2.9 in)
1941	89.9 mm (3.5 in)
1942	155.7 mm (6.1 in)
1943	93.2 mm (3.7 in)
1944	74.4 mm (2.9 in)
1945	67.3 mm (2.6 in)
1946	57.7 mm (2.3 in)
1947	53.3 mm (2.1 in)
1948	55.6 mm (2.2 in)
1949	73.7 mm (2.9 in)
1950	48.3 mm (1.9 in)
1951	47.8 mm (1.9 in)
1952	41.9 mm (1.6 in)
1953	59.2 mm (2.3 in)
1954	95.0 mm (3.7 in)
1955	75.5 mm (3.0 in)
1956	50.0 mm (2.0 in)
1957	90.2 mm (3.6 in)
1958	109.5 mm (4.3 in)
1959	42.5 mm (1.7 in)
1960	72.0 mm (2.8 in)
1961	109.0 mm (4.3 in)
1962	74.0 mm (2.9 in)
1963	55.0 mm (2.2 in)
1964	75.0 mm (3.0 in)
1965	35.0 mm (1.4 in)
1966	174.0 mm (6.9 in)
1967	60.0 mm (2.4 in)
1968	133.0 mm (5.2 in)
1969	74.0 mm (2.9 in)
1970	52.5 mm (2.1 in)
1971	48.5 mm (1.9 in)
1972	87.5 mm (3.4 in)
1973	128.0 mm (5.0 in)
1974	247.0 mm (9.7 in)
1975	54.2 mm (2.1 in)
1976	72.0 mm (2.8 in)
1977	61.5 mm (2.4 in)
1978	80.0 mm (3.1 in)
1979	40.0 mm (1.6 in)
1980	78.0 mm (3.1 in)
1981	64.5 mm (2.5 in)
1982	58.5 mm (2.3 in)
1983	31.0 mm (1.2 in)
1984	226.1 mm (8.9 in)
1985	71.0 mm (2.8 in)
1986	49.0 mm (1.9 in)
1987	111.0 mm (4.4 in)
1988	81.5 mm (3.2 in)
1989	78.0 mm (3.1 in)
1990	100.0 mm (3.9 in)
1991	78.0 mm (3.1 in)
1992	76.2 mm (3.0 in)
1993	54.0 mm (2.1 in)
1994	87.0 mm (3.4 in)
1995	109.0 mm (4.3 in)
1996	73.0 mm (2.9 in)
1997	81.0 mm (3.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ndumu, 1919 to 1997. The record is 460.9 mm (18.1 in) in 1984, marked on the chart; the median year is 98.2 mm (3.9 in).

Wettest five days (Rx5day) at Ndumu by year
Year	Wettest five days (Rx5day)
1919	175.9 mm (6.9 in)
1920	157.4 mm (6.2 in)
1921	75.7 mm (3.0 in)
1922	80.8 mm (3.2 in)
1923	166.1 mm (6.5 in)
1924	106.1 mm (4.2 in)
1925	251.8 mm (9.9 in)
1926	62.2 mm (2.4 in)
1927	130.3 mm (5.1 in)
1928	87.3 mm (3.4 in)
1929	94.5 mm (3.7 in)
1930	56.3 mm (2.2 in)
1931	55.4 mm (2.2 in)
1932	69.0 mm (2.7 in)
1933	74.1 mm (2.9 in)
1934	73.7 mm (2.9 in)
1935	65.0 mm (2.6 in)
1936	194.0 mm (7.6 in)
1937	108.3 mm (4.3 in)
1938	389.5 mm (15.3 in)
1939	389.5 mm (15.3 in)
1940	155.7 mm (6.1 in)
1941	106.9 mm (4.2 in)
1942	179.3 mm (7.1 in)
1943	113.5 mm (4.5 in)
1944	98.2 mm (3.9 in)
1945	90.4 mm (3.6 in)
1946	86.9 mm (3.4 in)
1947	72.4 mm (2.9 in)
1948	76.8 mm (3.0 in)
1949	166.4 mm (6.6 in)
1950	64.8 mm (2.6 in)
1951	90.7 mm (3.6 in)
1952	124.3 mm (4.9 in)
1953	83.2 mm (3.3 in)
1954	118.5 mm (4.7 in)
1955	88.5 mm (3.5 in)
1956	62.5 mm (2.5 in)
1957	160.1 mm (6.3 in)
1958	148.0 mm (5.8 in)
1959	52.5 mm (2.1 in)
1960	72.0 mm (2.8 in)
1961	109.0 mm (4.3 in)
1962	95.5 mm (3.8 in)
1963	81.0 mm (3.2 in)
1964	94.0 mm (3.7 in)
1965	41.5 mm (1.6 in)
1966	404.4 mm (15.9 in)
1967	85.5 mm (3.4 in)
1968	138.0 mm (5.4 in)
1969	181.0 mm (7.1 in)
1970	71.0 mm (2.8 in)
1971	63.5 mm (2.5 in)
1972	160.5 mm (6.3 in)
1973	238.0 mm (9.4 in)
1974	286.5 mm (11.3 in)
1975	54.2 mm (2.1 in)
1976	169.0 mm (6.7 in)
1977	111.0 mm (4.4 in)
1978	129.5 mm (5.1 in)
1979	47.0 mm (1.9 in)
1980	86.4 mm (3.4 in)
1981	149.8 mm (5.9 in)
1982	58.5 mm (2.3 in)
1983	72.0 mm (2.8 in)
1984	460.9 mm (18.1 in)
1985	111.0 mm (4.4 in)
1986	83.0 mm (3.3 in)
1987	155.2 mm (6.1 in)
1988	83.5 mm (3.3 in)
1989	176.0 mm (6.9 in)
1990	115.0 mm (4.5 in)
1991	153.0 mm (6.0 in)
1992	128.5 mm (5.1 in)
1993	67.7 mm (2.7 in)
1994	90.6 mm (3.6 in)
1995	166.0 mm (6.5 in)
1996	79.9 mm (3.1 in)
1997	111.0 mm (4.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ndumu, 1919 to 1997. The record is 175 days in 1946, marked on the chart; the median year is 68 days.

Longest dry spell (CDD) at Ndumu by year
Year	Longest dry spell (CDD)
1919	74 days
1920	80 days
1921	110 days
1922	36 days
1923	91 days
1924	55 days
1925	46 days
1926	50 days
1927	53 days
1928	42 days
1929	110 days
1930	86 days
1931	87 days
1932	90 days
1933	62 days
1934	52 days
1935	145 days
1936	68 days
1937	64 days
1938	67 days
1939	54 days
1940	44 days
1941	174 days
1942	68 days
1943	63 days
1944	95 days
1945	112 days
1946	175 days
1947	44 days
1948	100 days
1949	74 days
1950	103 days
1951	42 days
1952	74 days
1953	66 days
1954	92 days
1955	112 days
1956	50 days
1957	67 days
1958	95 days
1959	117 days
1960	93 days
1961	35 days
1962	64 days
1963	81 days
1964	161 days
1965	37 days
1966	43 days
1967	100 days
1968	35 days
1969	66 days
1970	63 days
1971	65 days
1972	42 days
1973	52 days
1974	49 days
1975	133 days
1976	157 days
1977	94 days
1978	147 days
1979	19 days
1980	74 days
1981	85 days
1982	48 days
1983	31 days
1984	58 days
1985	84 days
1986	94 days
1987	126 days
1988	51 days
1989	41 days
1990	67 days
1991	82 days
1992	77 days
1993	61 days
1994	82 days
1995	90 days
1996	78 days
1997	25 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

72 years, 1919 to 1996

A day with at least 68.5 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 221.3 mm (8.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Ndumu: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	68.5 mm (2.7 in)
5 years	96.4 mm (3.8 in)
10 years	119.1 mm (4.7 in)
25 years	154.0 mm (6.1 in)
50 years	185.1 mm (7.3 in)
100 years	221.3 mm (8.7 in)	Longer than the 72 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, 72 years of values from 1919 to 1996.

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: 247.0 mm (9.7 in) in 1974; 174.0 mm (6.9 in) in 1966; 160.8 mm (6.3 in) in 1938.

Download the Data

Data for Ndumu standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ndumu 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).

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