Grootvlakte Weather Records (SF000757840)

Record envelope, standing records and threshold days for Grootvlakte (SF000757840), South Africa, with 71 years of record.

Key Facts for Grootvlakte

Grootvlakte (SF000757840) is a weather station in South Africa at -32.57 latitude and 25.45 longitude, 975 m (3,199 ft) above sea level.
The station reports from 1927 to 1997, 71 years of record.
0 records set at Grootvlakte still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Grootvlakte set a daily record precipitation of 14.5 mm (0.6 in) on 26 October 1997.

About the Station

Location: South Africa, -32.57 latitude, 25.45 longitude.
Elevation: 975 m (3,199 ft).
Period of record: 1927 to 1997, 71 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 Grootvlakte. 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 Grootvlakte, 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 Grootvlakte still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Grootvlakte between 21 August 1971 and 14 November 1989. Each dot is a new record.

When Grootvlakte set new all-time records
Date	Kind	Detail
1971-08-21	Record daily precipitation	Record daily precipitation 82.4 mm (3.2 in)
1974-03-03	Record daily precipitation	Record daily precipitation 101.9 mm (4.0 in)
1989-11-14	Record daily precipitation	Record daily precipitation 125.0 mm (4.9 in)

Wettest Day of Each Month

Nov: 125.0 mm (4.9 in)

The wettest day on record for each calendar month at Grootvlakte. The most was 125.0 mm (4.9 in) on 14 November 1989.

Record daily precipitation for each month at Grootvlakte
Month	Record daily precipitation (mm)	Date
Jan	63.0 mm (2.5 in)	15 January 1985
Feb	64.5 mm (2.5 in)	27 February 1979
Mar	101.9 mm (4.0 in)	3 March 1974
Apr	48.8 mm (1.9 in)	19 April 1948
May	81.8 mm (3.2 in)	27 May 1944
Jun	36.3 mm (1.4 in)	17 June 1964
Jul	51.0 mm (2.0 in)	26 July 1983
Aug	82.4 mm (3.2 in)	21 August 1971
Sep	45.5 mm (1.8 in)	13 September 1953
Oct	70.2 mm (2.8 in)	21 October 1953
Nov	125.0 mm (4.9 in)	14 November 1989
Dec	72.0 mm (2.8 in)	6 December 1970

Latest Records

Latest records at Grootvlakte
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 October 1997	Grootvlakte, ZA	daily rain	14.5 mm (0.6 in)	2.6 mm (0.10 in)	56 years	20 of 100 (Routine)
14 October 1997	Grootvlakte, ZA	daily rain	25.0 mm (1.0 in)	7.5 mm (0.30 in)	58 years	31 of 100 (Routine)
28 June 1997	Grootvlakte, ZA	daily rain	11.0 mm (0.4 in)	3.9 mm (0.15 in)	52 years	20 of 100 (Routine)
25 May 1997	Grootvlakte, ZA	daily rain	7.0 mm (0.28 in)	2.0 mm (0.08 in)	2 years	9 of 100 (Routine)
22 April 1997	Grootvlakte, ZA	daily rain	17.5 mm (0.7 in)	6.1 mm (0.24 in)	52 years	20 of 100 (Routine)
9 February 1997	Grootvlakte, ZA	daily rain	29.5 mm (1.2 in)	3.3 mm (0.13 in)	36 years	20 of 100 (Routine)
20 November 1996	Grootvlakte, ZA	daily rain	36.0 mm (1.4 in)	7.8 mm (0.31 in)	42 years	26 of 100 (Routine)
15 November 1996	Grootvlakte, ZA	daily rain	37.0 mm (1.5 in)	27.4 mm (1.1 in)	14 years	36 of 100 (Notable)
11 November 1996	Grootvlakte, ZA	daily rain	20.0 mm (0.8 in)	4.8 mm (0.19 in)	62 years	20 of 100 (Routine)
6 November 1996	Grootvlakte, ZA	daily rain	23.0 mm (0.9 in)	12.4 mm (0.5 in)	43 years	20 of 100 (Routine)
11 September 1996	Grootvlakte, ZA	daily rain	9.0 mm (0.35 in)	1.7 mm (0.07 in)	27 years	17 of 100 (Routine)
4 August 1996	Grootvlakte, ZA	daily rain	15.5 mm (0.6 in)	7.1 mm (0.28 in)	51 years	20 of 100 (Routine)
22 January 1996	Grootvlakte, ZA	daily rain	5.0 mm (0.20 in)	2.0 mm (0.08 in)	42 years	20 of 100 (Routine)
31 October 1995	Grootvlakte, ZA	daily rain	24.7 mm (1.0 in)	14.7 mm (0.6 in)	12 years	20 of 100 (Routine)
25 May 1995	Grootvlakte, ZA	daily rain	5.0 mm (0.20 in)	2.0 mm (0.08 in)	38 years	19 of 100 (Routine)
5 May 1995	Grootvlakte, ZA	daily rain	10.0 mm (0.4 in)	4.2 mm (0.17 in)	16 years	14 of 100 (Routine)
13 January 1995	Grootvlakte, ZA	daily rain	54.3 mm (2.1 in)	35.2 mm (1.4 in)	60 years	59 of 100 (Notable)
12 January 1995	Grootvlakte, ZA	daily rain	14.0 mm (0.6 in)	4.3 mm (0.17 in)	52 years	20 of 100 (Routine)
23 December 1994	Grootvlakte, ZA	daily rain	53.5 mm (2.1 in)	45.6 mm (1.8 in)	47 years	60 of 100 (Major)
12 August 1994	Grootvlakte, ZA	daily rain	3.4 mm (0.13 in)	0.1 mm (0.00 in)	64 years	20 of 100 (Routine)

Extremes by Year

1927 to 1997

Yearly extremes at Grootvlakte: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	125.0 mm (4.9 in)	1989	42.0 mm (1.7 in)	71
Wettest five days (Rx5day)	157.0 mm (6.2 in)	1974	57.4 mm (2.3 in)	71
Longest dry spell (CDD)	114 days	1949	46 days	71

Wettest day (Rx1day)

The wettest day of the year at Grootvlakte, 1927 to 1997. The record is 125.0 mm (4.9 in) in 1989, marked on the chart; the median year is 42.0 mm (1.7 in).

Wettest day (Rx1day) at Grootvlakte by year
Year	Wettest day (Rx1day)
1927	10.7 mm (0.4 in)
1928	74.9 mm (2.9 in)
1929	45.5 mm (1.8 in)
1930	30.0 mm (1.2 in)
1931	50.5 mm (2.0 in)
1932	52.1 mm (2.1 in)
1933	30.5 mm (1.2 in)
1934	29.2 mm (1.1 in)
1935	20.1 mm (0.8 in)
1936	40.6 mm (1.6 in)
1937	20.3 mm (0.8 in)
1938	26.7 mm (1.1 in)
1939	30.2 mm (1.2 in)
1940	31.0 mm (1.2 in)
1941	57.7 mm (2.3 in)
1942	56.9 mm (2.2 in)
1943	36.3 mm (1.4 in)
1944	81.8 mm (3.2 in)
1945	60.2 mm (2.4 in)
1946	42.2 mm (1.7 in)
1947	28.2 mm (1.1 in)
1948	48.8 mm (1.9 in)
1949	18.3 mm (0.7 in)
1950	44.2 mm (1.7 in)
1951	46.2 mm (1.8 in)
1952	57.2 mm (2.3 in)
1953	70.2 mm (2.8 in)
1954	32.3 mm (1.3 in)
1955	25.0 mm (1.0 in)
1956	25.5 mm (1.0 in)
1957	51.2 mm (2.0 in)
1958	71.0 mm (2.8 in)
1959	51.5 mm (2.0 in)
1960	25.5 mm (1.0 in)
1961	43.0 mm (1.7 in)
1962	30.0 mm (1.2 in)
1963	30.0 mm (1.2 in)
1964	46.7 mm (1.8 in)
1965	42.0 mm (1.7 in)
1966	22.2 mm (0.9 in)
1967	33.8 mm (1.3 in)
1968	36.2 mm (1.4 in)
1969	41.2 mm (1.6 in)
1970	72.0 mm (2.8 in)
1971	82.4 mm (3.2 in)
1972	27.7 mm (1.1 in)
1973	52.0 mm (2.0 in)
1974	101.9 mm (4.0 in)
1975	23.2 mm (0.9 in)
1976	59.9 mm (2.4 in)
1977	44.0 mm (1.7 in)
1978	27.5 mm (1.1 in)
1979	64.5 mm (2.5 in)
1980	44.2 mm (1.7 in)
1981	53.0 mm (2.1 in)
1982	23.0 mm (0.9 in)
1983	51.0 mm (2.0 in)
1984	42.7 mm (1.7 in)
1985	63.0 mm (2.5 in)
1986	30.5 mm (1.2 in)
1987	32.4 mm (1.3 in)
1988	51.5 mm (2.0 in)
1989	125.0 mm (4.9 in)
1990	15.0 mm (0.6 in)
1991	22.0 mm (0.9 in)
1992	23.0 mm (0.9 in)
1993	28.5 mm (1.1 in)
1994	53.5 mm (2.1 in)
1995	54.3 mm (2.1 in)
1996	37.0 mm (1.5 in)
1997	29.5 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Grootvlakte, 1927 to 1997. The record is 157.0 mm (6.2 in) in 1974, marked on the chart; the median year is 57.4 mm (2.3 in).

Wettest five days (Rx5day) at Grootvlakte by year
Year	Wettest five days (Rx5day)
1927	12.7 mm (0.5 in)
1928	132.5 mm (5.2 in)
1929	50.1 mm (2.0 in)
1930	50.1 mm (2.0 in)
1931	93.9 mm (3.7 in)
1932	146.0 mm (5.7 in)
1933	39.4 mm (1.6 in)
1934	50.0 mm (2.0 in)
1935	40.9 mm (1.6 in)
1936	45.2 mm (1.8 in)
1937	29.7 mm (1.2 in)
1938	42.4 mm (1.7 in)
1939	48.7 mm (1.9 in)
1940	57.4 mm (2.3 in)
1941	110.2 mm (4.3 in)
1942	68.8 mm (2.7 in)
1943	69.0 mm (2.7 in)
1944	125.2 mm (4.9 in)
1945	92.2 mm (3.6 in)
1946	42.2 mm (1.7 in)
1947	38.6 mm (1.5 in)
1948	66.4 mm (2.6 in)
1949	27.2 mm (1.1 in)
1950	96.3 mm (3.8 in)
1951	75.1 mm (3.0 in)
1952	130.6 mm (5.1 in)
1953	155.1 mm (6.1 in)
1954	43.8 mm (1.7 in)
1955	43.3 mm (1.7 in)
1956	56.8 mm (2.2 in)
1957	51.4 mm (2.0 in)
1958	75.3 mm (3.0 in)
1959	55.0 mm (2.2 in)
1960	40.5 mm (1.6 in)
1961	69.7 mm (2.7 in)
1962	68.8 mm (2.7 in)
1963	49.3 mm (1.9 in)
1964	68.0 mm (2.7 in)
1965	51.6 mm (2.0 in)
1966	32.1 mm (1.3 in)
1967	34.2 mm (1.3 in)
1968	63.7 mm (2.5 in)
1969	44.2 mm (1.7 in)
1970	109.9 mm (4.3 in)
1971	134.8 mm (5.3 in)
1972	35.9 mm (1.4 in)
1973	61.3 mm (2.4 in)
1974	157.0 mm (6.2 in)
1975	29.2 mm (1.1 in)
1976	61.9 mm (2.4 in)
1977	66.5 mm (2.6 in)
1978	34.7 mm (1.4 in)
1979	82.9 mm (3.3 in)
1980	52.6 mm (2.1 in)
1981	95.5 mm (3.8 in)
1982	61.0 mm (2.4 in)
1983	81.0 mm (3.2 in)
1984	42.7 mm (1.7 in)
1985	81.3 mm (3.2 in)
1986	55.5 mm (2.2 in)
1987	66.3 mm (2.6 in)
1988	77.1 mm (3.0 in)
1989	131.0 mm (5.2 in)
1990	29.0 mm (1.1 in)
1991	39.0 mm (1.5 in)
1992	23.0 mm (0.9 in)
1993	45.8 mm (1.8 in)
1994	72.5 mm (2.9 in)
1995	81.7 mm (3.2 in)
1996	58.0 mm (2.3 in)
1997	39.0 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Grootvlakte, 1927 to 1997. The record is 114 days in 1949, marked on the chart; the median year is 46 days.

Longest dry spell (CDD) at Grootvlakte by year
Year	Longest dry spell (CDD)
1927	13 days
1928	48 days
1929	54 days
1930	52 days
1931	57 days
1932	46 days
1933	63 days
1934	63 days
1935	47 days
1936	42 days
1937	44 days
1938	65 days
1939	38 days
1940	59 days
1941	66 days
1942	33 days
1943	57 days
1944	59 days
1945	60 days
1946	36 days
1947	60 days
1948	72 days
1949	114 days
1950	47 days
1951	71 days
1952	33 days
1953	33 days
1954	52 days
1955	37 days
1956	37 days
1957	29 days
1958	56 days
1959	50 days
1960	32 days
1961	42 days
1962	36 days
1963	35 days
1964	81 days
1965	43 days
1966	77 days
1967	42 days
1968	55 days
1969	53 days
1970	60 days
1971	47 days
1972	45 days
1973	35 days
1974	27 days
1975	39 days
1976	22 days
1977	36 days
1978	68 days
1979	41 days
1980	36 days
1981	46 days
1982	40 days
1983	42 days
1984	72 days
1985	57 days
1986	39 days
1987	36 days
1988	47 days
1989	53 days
1990	51 days
1991	31 days
1992	38 days
1993	71 days
1994	44 days
1995	36 days
1996	42 days
1997	42 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

69 years, 1928 to 1997

A day with at least 39.5 mm (1.6 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 Grootvlakte: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	39.5 mm (1.6 in)
5 years	57.1 mm (2.2 in)
10 years	69.7 mm (2.7 in)
25 years	86.9 mm (3.4 in)
50 years	100.5 mm (4.0 in)
100 years	114.9 mm (4.5 in)	Longer than the 69 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, 69 years of values from 1928 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: 125.0 mm (4.9 in) in 1989; 101.9 mm (4.0 in) in 1974; 82.4 mm (3.2 in) in 1971.

Download the Data

Data for Grootvlakte standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grootvlakte 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 2026-10-15 (15 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