Rietbult Weather Records (SF004401570)

Record envelope, standing records and threshold days for Rietbult (SF004401570), South Africa, with 85 years of record.

Key Facts for Rietbult

Rietbult (SF004401570) is a weather station in South Africa at -26.62 latitude and 28.60 longitude, 1,664 m (5,459 ft) above sea level.
The station reports from 1913 to 1997, 85 years of record.
0 records set at Rietbult still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Rietbult set a daily record precipitation of 14.0 mm (0.6 in) on 11 June 1997.

About the Station

Location: South Africa, -26.62 latitude, 28.60 longitude.
Elevation: 1,664 m (5,459 ft).
Period of record: 1913 to 1997, 85 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 Rietbult. 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 Rietbult, 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 Rietbult still stand.

Wettest Day of Each Month

Nov: 153.7 mm (6.1 in)

The wettest day on record for each calendar month at Rietbult. The most was 153.7 mm (6.1 in) on 19 November 1917.

Record daily precipitation for each month at Rietbult
Month	Record daily precipitation (mm)	Date
Jan	107.0 mm (4.2 in)	24 January 1975
Feb	96.5 mm (3.8 in)	5 February 1966
Mar	102.1 mm (4.0 in)	29 March 1936
Apr	83.6 mm (3.3 in)	3 April 1958
May	66.0 mm (2.6 in)	23 May 1936
Jun	55.0 mm (2.2 in)	13 June 1963
Jul	37.1 mm (1.5 in)	3 July 1943
Aug	44.5 mm (1.8 in)	1 August 1918
Sep	59.7 mm (2.4 in)	28 September 1924
Oct	94.0 mm (3.7 in)	28 October 1986
Nov	153.7 mm (6.1 in)	19 November 1917
Dec	112.3 mm (4.4 in)	1 December 1917

Latest Records

Latest records at Rietbult
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 June 1997	Rietbult, ZA	daily rain	14.0 mm (0.6 in)	8.4 mm (0.33 in)	52 years	20 of 100 (Routine)
25 May 1997	Rietbult, ZA	daily rain	48.5 mm (1.9 in)	32.5 mm (1.3 in)	40 years	60 of 100 (Major)
24 May 1997	Rietbult, ZA	daily rain	54.0 mm (2.1 in)	25.3 mm (1.0 in)	63 years	57 of 100 (Notable)
27 March 1997	Rietbult, ZA	daily rain	44.0 mm (1.7 in)	17.6 mm (0.7 in)	71 years	45 of 100 (Notable)
5 March 1997	Rietbult, ZA	daily rain	36.0 mm (1.4 in)	5.0 mm (0.20 in)	40 years	24 of 100 (Routine)
4 March 1997	Rietbult, ZA	daily rain	54.5 mm (2.1 in)	6.2 mm (0.24 in)	64 years	32 of 100 (Routine)
2 March 1997	Rietbult, ZA	daily rain	24.0 mm (0.9 in)	4.0 mm (0.16 in)	43 years	20 of 100 (Routine)
10 January 1997	Rietbult, ZA	daily rain	25.0 mm (1.0 in)	3.4 mm (0.13 in)	74 years	32 of 100 (Routine)
15 December 1996	Rietbult, ZA	daily rain	64.0 mm (2.5 in)	38.0 mm (1.5 in)	21 years	49 of 100 (Notable)
22 October 1996	Rietbult, ZA	daily rain	51.5 mm (2.0 in)	15.2 mm (0.6 in)	52 years	35 of 100 (Notable)
4 April 1996	Rietbult, ZA	daily rain	26.0 mm (1.0 in)	12.3 mm (0.5 in)	35 years	31 of 100 (Routine)
2 April 1996	Rietbult, ZA	daily rain	32.5 mm (1.3 in)	13.4 mm (0.5 in)	83 years	46 of 100 (Notable)
13 February 1996	Rietbult, ZA	daily rain	52.5 mm (2.1 in)	19.0 mm (0.7 in)	5 years	22 of 100 (Routine)
26 January 1996	Rietbult, ZA	daily rain	42.5 mm (1.7 in)	3.4 mm (0.13 in)	72 years	31 of 100 (Routine)
8 January 1996	Rietbult, ZA	daily rain	37.5 mm (1.5 in)	11.3 mm (0.4 in)	58 years	34 of 100 (Routine)
18 November 1995	Rietbult, ZA	daily rain	37.0 mm (1.5 in)	1.0 mm (0.04 in)	16 years	13 of 100 (Routine)
18 October 1995	Rietbult, ZA	daily rain	38.5 mm (1.5 in)	5.5 mm (0.22 in)	25 years	19 of 100 (Routine)
28 April 1995	Rietbult, ZA	daily rain	33.5 mm (1.3 in)	15.5 mm (0.6 in)	22 years	30 of 100 (Routine)
21 April 1995	Rietbult, ZA	daily rain	16.5 mm (0.6 in)	1.3 mm (0.05 in)	72 years	20 of 100 (Routine)
25 March 1995	Rietbult, ZA	daily rain	37.0 mm (1.5 in)	8.5 mm (0.33 in)	5 years	16 of 100 (Routine)

Extremes by Year

1913 to 1997

Yearly extremes at Rietbult: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	153.7 mm (6.1 in)	1917	53.3 mm (2.1 in)	85
Wettest five days (Rx5day)	257.9 mm (10.2 in)	1966	90.0 mm (3.5 in)	85
Longest dry spell (CDD)	183 days	1991	74 days	85

Wettest day (Rx1day)

The wettest day of the year at Rietbult, 1913 to 1997. The record is 153.7 mm (6.1 in) in 1917, marked on the chart; the median year is 53.3 mm (2.1 in).

Wettest day (Rx1day) at Rietbult by year
Year	Wettest day (Rx1day)
1913	49.8 mm (2.0 in)
1914	38.6 mm (1.5 in)
1915	52.8 mm (2.1 in)
1916	39.1 mm (1.5 in)
1917	153.7 mm (6.1 in)
1918	70.4 mm (2.8 in)
1919	52.8 mm (2.1 in)
1920	53.3 mm (2.1 in)
1921	44.5 mm (1.8 in)
1922	52.1 mm (2.1 in)
1923	38.6 mm (1.5 in)
1924	59.7 mm (2.4 in)
1925	34.0 mm (1.3 in)
1926	30.5 mm (1.2 in)
1927	39.6 mm (1.6 in)
1928	67.3 mm (2.6 in)
1929	45.2 mm (1.8 in)
1930	34.0 mm (1.3 in)
1931	36.3 mm (1.4 in)
1932	42.9 mm (1.7 in)
1933	71.9 mm (2.8 in)
1934	49.3 mm (1.9 in)
1935	49.8 mm (2.0 in)
1936	102.1 mm (4.0 in)
1937	76.7 mm (3.0 in)
1938	32.3 mm (1.3 in)
1939	43.2 mm (1.7 in)
1940	62.2 mm (2.4 in)
1941	58.4 mm (2.3 in)
1942	75.9 mm (3.0 in)
1943	49.5 mm (1.9 in)
1944	71.1 mm (2.8 in)
1945	75.2 mm (3.0 in)
1946	52.8 mm (2.1 in)
1947	63.0 mm (2.5 in)
1948	53.1 mm (2.1 in)
1949	57.4 mm (2.3 in)
1950	41.9 mm (1.6 in)
1951	38.1 mm (1.5 in)
1952	43.2 mm (1.7 in)
1953	88.4 mm (3.5 in)
1954	100.0 mm (3.9 in)
1955	85.0 mm (3.3 in)
1956	57.0 mm (2.2 in)
1957	57.5 mm (2.3 in)
1958	83.6 mm (3.3 in)
1959	85.5 mm (3.4 in)
1960	72.5 mm (2.9 in)
1961	77.5 mm (3.1 in)
1962	38.7 mm (1.5 in)
1963	55.0 mm (2.2 in)
1964	57.0 mm (2.2 in)
1965	47.5 mm (1.9 in)
1966	96.5 mm (3.8 in)
1967	66.0 mm (2.6 in)
1968	34.0 mm (1.3 in)
1969	41.0 mm (1.6 in)
1970	72.0 mm (2.8 in)
1971	61.0 mm (2.4 in)
1972	84.5 mm (3.3 in)
1973	45.0 mm (1.8 in)
1974	42.5 mm (1.7 in)
1975	107.0 mm (4.2 in)
1976	61.0 mm (2.4 in)
1977	60.0 mm (2.4 in)
1978	92.5 mm (3.6 in)
1979	31.5 mm (1.2 in)
1980	51.0 mm (2.0 in)
1981	50.5 mm (2.0 in)
1982	53.0 mm (2.1 in)
1983	34.5 mm (1.4 in)
1984	40.0 mm (1.6 in)
1985	66.5 mm (2.6 in)
1986	94.0 mm (3.7 in)
1987	54.5 mm (2.1 in)
1988	49.0 mm (1.9 in)
1989	61.6 mm (2.4 in)
1990	37.5 mm (1.5 in)
1991	59.0 mm (2.3 in)
1992	45.5 mm (1.8 in)
1993	73.0 mm (2.9 in)
1994	30.0 mm (1.2 in)
1995	38.5 mm (1.5 in)
1996	64.0 mm (2.5 in)
1997	54.5 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Rietbult, 1913 to 1997. The record is 257.9 mm (10.2 in) in 1966, marked on the chart; the median year is 90.0 mm (3.5 in).

Wettest five days (Rx5day) at Rietbult by year
Year	Wettest five days (Rx5day)
1913	71.9 mm (2.8 in)
1914	60.2 mm (2.4 in)
1915	115.5 mm (4.5 in)
1916	83.3 mm (3.3 in)
1917	252.5 mm (9.9 in)
1918	137.4 mm (5.4 in)
1919	108.7 mm (4.3 in)
1920	75.0 mm (3.0 in)
1921	86.2 mm (3.4 in)
1922	90.0 mm (3.5 in)
1923	73.4 mm (2.9 in)
1924	75.2 mm (3.0 in)
1925	51.1 mm (2.0 in)
1926	47.3 mm (1.9 in)
1927	54.3 mm (2.1 in)
1928	76.2 mm (3.0 in)
1929	54.1 mm (2.1 in)
1930	45.0 mm (1.8 in)
1931	63.0 mm (2.5 in)
1932	47.7 mm (1.9 in)
1933	117.6 mm (4.6 in)
1934	73.2 mm (2.9 in)
1935	79.8 mm (3.1 in)
1936	127.8 mm (5.0 in)
1937	125.5 mm (4.9 in)
1938	52.0 mm (2.0 in)
1939	87.7 mm (3.5 in)
1940	85.0 mm (3.3 in)
1941	79.9 mm (3.1 in)
1942	91.4 mm (3.6 in)
1943	79.3 mm (3.1 in)
1944	151.7 mm (6.0 in)
1945	131.5 mm (5.2 in)
1946	93.0 mm (3.7 in)
1947	145.8 mm (5.7 in)
1948	99.8 mm (3.9 in)
1949	90.9 mm (3.6 in)
1950	71.8 mm (2.8 in)
1951	93.9 mm (3.7 in)
1952	58.4 mm (2.3 in)
1953	99.3 mm (3.9 in)
1954	102.0 mm (4.0 in)
1955	137.5 mm (5.4 in)
1956	95.8 mm (3.8 in)
1957	84.0 mm (3.3 in)
1958	97.3 mm (3.8 in)
1959	113.9 mm (4.5 in)
1960	121.7 mm (4.8 in)
1961	105.0 mm (4.1 in)
1962	68.5 mm (2.7 in)
1963	68.5 mm (2.7 in)
1964	85.5 mm (3.4 in)
1965	68.5 mm (2.7 in)
1966	257.9 mm (10.2 in)
1967	103.5 mm (4.1 in)
1968	71.0 mm (2.8 in)
1969	96.5 mm (3.8 in)
1970	99.5 mm (3.9 in)
1971	122.5 mm (4.8 in)
1972	129.0 mm (5.1 in)
1973	95.5 mm (3.8 in)
1974	66.5 mm (2.6 in)
1975	154.0 mm (6.1 in)
1976	102.7 mm (4.0 in)
1977	112.5 mm (4.4 in)
1978	120.5 mm (4.7 in)
1979	84.5 mm (3.3 in)
1980	92.5 mm (3.6 in)
1981	134.0 mm (5.3 in)
1982	68.0 mm (2.7 in)
1983	69.2 mm (2.7 in)
1984	64.0 mm (2.5 in)
1985	150.5 mm (5.9 in)
1986	99.5 mm (3.9 in)
1987	90.0 mm (3.5 in)
1988	114.4 mm (4.5 in)
1989	78.3 mm (3.1 in)
1990	64.5 mm (2.5 in)
1991	85.0 mm (3.3 in)
1992	53.0 mm (2.1 in)
1993	118.1 mm (4.6 in)
1994	65.0 mm (2.6 in)
1995	88.0 mm (3.5 in)
1996	113.0 mm (4.4 in)
1997	157.0 mm (6.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Rietbult, 1913 to 1997. The record is 183 days in 1991, marked on the chart; the median year is 74 days.

Longest dry spell (CDD) at Rietbult by year
Year	Longest dry spell (CDD)
1913	65 days
1914	45 days
1915	47 days
1916	157 days
1917	37 days
1918	61 days
1919	49 days
1920	61 days
1921	93 days
1922	69 days
1923	61 days
1924	52 days
1925	77 days
1926	75 days
1927	79 days
1928	95 days
1929	24 days
1930	55 days
1931	77 days
1932	127 days
1933	58 days
1934	45 days
1935	108 days
1936	109 days
1937	59 days
1938	30 days
1939	43 days
1940	66 days
1941	82 days
1942	59 days
1943	26 days
1944	93 days
1945	87 days
1946	67 days
1947	42 days
1948	124 days
1949	83 days
1950	38 days
1951	43 days
1952	40 days
1953	111 days
1954	85 days
1955	111 days
1956	106 days
1957	49 days
1958	84 days
1959	57 days
1960	42 days
1961	51 days
1962	124 days
1963	79 days
1964	44 days
1965	51 days
1966	83 days
1967	74 days
1968	154 days
1969	78 days
1970	40 days
1971	73 days
1972	83 days
1973	91 days
1974	76 days
1975	74 days
1976	146 days
1977	107 days
1978	118 days
1979	32 days
1980	111 days
1981	77 days
1982	65 days
1983	43 days
1984	40 days
1985	59 days
1986	85 days
1987	161 days
1988	71 days
1989	49 days
1990	116 days
1991	183 days
1992	61 days
1993	23 days
1994	120 days
1995	111 days
1996	107 days
1997	79 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

78 years, 1914 to 1996

A day with at least 53.8 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 133.6 mm (5.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Rietbult: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	53.8 mm (2.1 in)
5 years	72.3 mm (2.8 in)
10 years	85.5 mm (3.4 in)
25 years	103.7 mm (4.1 in)
50 years	118.2 mm (4.7 in)
100 years	133.6 mm (5.3 in)	Longer than the 78 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, 78 years of values from 1914 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: 153.7 mm (6.1 in) in 1917; 107.0 mm (4.2 in) in 1975; 102.1 mm (4.0 in) in 1936.

Download the Data

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