Grootkuil Weather Records (SF003278830)

Record envelope, standing records and threshold days for Grootkuil (SF003278830), South Africa, with 87 years of record.

Key Facts for Grootkuil

Grootkuil (SF003278830) is a weather station in South Africa at -28.22 latitude and 26.50 longitude, 1,286 m (4,219 ft) above sea level.
The station reports from 1911 to 1997, 87 years of record.
0 records set at Grootkuil still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Grootkuil set a daily record precipitation of 10.5 mm (0.4 in) on 29 August 1997.

About the Station

Location: South Africa, -28.22 latitude, 26.50 longitude.
Elevation: 1,286 m (4,219 ft).
Period of record: 1911 to 1997, 87 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 Grootkuil. 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 Grootkuil, 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 Grootkuil still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Grootkuil between 31 January 1955 and 31 January 1955. Each dot is a new record.

Wettest Day of Each Month

Jan: 102.0 mm (4.0 in)

The wettest day on record for each calendar month at Grootkuil. The most was 102.0 mm (4.0 in) on 31 January 1955.

Record daily precipitation for each month at Grootkuil
Month	Record daily precipitation (mm)	Date
Jan	102.0 mm (4.0 in)	31 January 1955
Feb	80.0 mm (3.1 in)	29 February 1980
Mar	86.1 mm (3.4 in)	21 March 1946
Apr	50.0 mm (2.0 in)	8 April 1982
May	55.5 mm (2.2 in)	16 May 1968
Jun	38.5 mm (1.5 in)	23 June 1985
Jul	37.0 mm (1.5 in)	23 July 1983
Aug	50.3 mm (2.0 in)	31 August 1943
Sep	50.0 mm (2.0 in)	22 September 1980
Oct	68.0 mm (2.7 in)	2 October 1976
Nov	74.7 mm (2.9 in)	20 November 1933
Dec	97.8 mm (3.9 in)	9 December 1921

Latest Records

Latest records at Grootkuil
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 August 1997	Grootkuil, ZA	daily rain	10.5 mm (0.4 in)	3.5 mm (0.14 in)	12 years	15 of 100 (Routine)
26 July 1997	Grootkuil, ZA	daily rain	22.5 mm (0.9 in)	6.0 mm (0.24 in)	70 years	20 of 100 (Routine)
10 June 1997	Grootkuil, ZA	daily rain	3.0 mm (0.12 in)	3.0 mm (0.12 in)	84 years	20 of 100 (Routine)
24 May 1997	Grootkuil, ZA	daily rain	39.0 mm (1.5 in)	3.4 mm (0.13 in)	63 years	30 of 100 (Routine)
5 May 1997	Grootkuil, ZA	daily rain	14.5 mm (0.6 in)	0.5 mm (0.02 in)	20 years	14 of 100 (Routine)
20 April 1997	Grootkuil, ZA	daily rain	33.5 mm (1.3 in)	16.5 mm (0.6 in)	36 years	34 of 100 (Routine)
31 March 1997	Grootkuil, ZA	daily rain	49.0 mm (1.9 in)	21.5 mm (0.8 in)	36 years	38 of 100 (Notable)
26 March 1997	Grootkuil, ZA	daily rain (Tie)	30.0 mm (1.2 in)	tie	40 years	5 of 100 (Routine)
1 March 1997	Grootkuil, ZA	daily rain	18.5 mm (0.7 in)	1.2 mm (0.05 in)	44 years	20 of 100 (Routine)
21 January 1997	Grootkuil, ZA	daily rain	49.0 mm (1.9 in)	32.2 mm (1.3 in)	68 years	52 of 100 (Notable)
16 January 1997	Grootkuil, ZA	daily rain	18.0 mm (0.7 in)	2.5 mm (0.10 in)	39 years	20 of 100 (Routine)
15 January 1997	Grootkuil, ZA	daily rain	35.0 mm (1.4 in)	11.9 mm (0.5 in)	62 years	35 of 100 (Notable)
3 August 1996	Grootkuil, ZA	daily rain	8.5 mm (0.33 in)	2.0 mm (0.08 in)	32 years	19 of 100 (Routine)
24 July 1996	Grootkuil, ZA	daily rain	15.0 mm (0.6 in)	14.2 mm (0.6 in)	78 years	20 of 100 (Routine)
7 July 1996	Grootkuil, ZA	daily rain	1.5 mm (0.06 in)	0.5 mm (0.02 in)	53 years	20 of 100 (Routine)
6 July 1996	Grootkuil, ZA	daily rain	14.0 mm (0.6 in)	8.9 mm (0.35 in)	53 years	20 of 100 (Routine)
6 May 1996	Grootkuil, ZA	daily rain	9.5 mm (0.37 in)	3.0 mm (0.12 in)	40 years	20 of 100 (Routine)
3 April 1996	Grootkuil, ZA	daily rain	24.0 mm (0.9 in)	8.0 mm (0.31 in)	58 years	20 of 100 (Routine)
2 March 1996	Grootkuil, ZA	daily rain	40.5 mm (1.6 in)	20.0 mm (0.8 in)	28 years	34 of 100 (Routine)
24 February 1996	Grootkuil, ZA	daily rain	49.0 mm (1.9 in)	17.0 mm (0.7 in)	24 years	31 of 100 (Routine)

Extremes by Year

1911 to 1997

Yearly extremes at Grootkuil: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	102.0 mm (4.0 in)	1955	43.0 mm (1.7 in)	85
Wettest five days (Rx5day)	186.5 mm (7.3 in)	1955	75.0 mm (3.0 in)	85
Longest dry spell (CDD)	181 days	1994	86 days	85

Wettest day (Rx1day)

The wettest day of the year at Grootkuil, 1911 to 1997. The record is 102.0 mm (4.0 in) in 1955, marked on the chart; the median year is 43.0 mm (1.7 in).

Wettest day (Rx1day) at Grootkuil by year
Year	Wettest day (Rx1day)
1911	26.7 mm (1.1 in)
1912	32.8 mm (1.3 in)
1913	41.4 mm (1.6 in)
1914	30.5 mm (1.2 in)
1915	21.8 mm (0.9 in)
1916	31.0 mm (1.2 in)
1917	28.7 mm (1.1 in)
1918	40.6 mm (1.6 in)
1919	6.1 mm (0.24 in)
1921	97.8 mm (3.9 in)
1922	45.7 mm (1.8 in)
1923	9.9 mm (0.39 in)
1925	54.6 mm (2.1 in)
1926	39.4 mm (1.6 in)
1927	64.3 mm (2.5 in)
1928	23.9 mm (0.9 in)
1929	38.1 mm (1.5 in)
1930	34.0 mm (1.3 in)
1931	43.4 mm (1.7 in)
1932	30.5 mm (1.2 in)
1933	74.7 mm (2.9 in)
1934	36.8 mm (1.4 in)
1935	52.1 mm (2.1 in)
1936	43.2 mm (1.7 in)
1937	62.7 mm (2.5 in)
1938	64.3 mm (2.5 in)
1939	35.6 mm (1.4 in)
1940	53.8 mm (2.1 in)
1941	38.1 mm (1.5 in)
1942	33.0 mm (1.3 in)
1943	67.1 mm (2.6 in)
1944	25.7 mm (1.0 in)
1945	39.6 mm (1.6 in)
1946	86.1 mm (3.4 in)
1947	55.6 mm (2.2 in)
1948	61.5 mm (2.4 in)
1949	57.2 mm (2.3 in)
1950	52.1 mm (2.1 in)
1951	34.5 mm (1.4 in)
1952	37.3 mm (1.5 in)
1953	44.0 mm (1.7 in)
1954	60.0 mm (2.4 in)
1955	102.0 mm (4.0 in)
1956	35.0 mm (1.4 in)
1957	45.5 mm (1.8 in)
1958	29.5 mm (1.2 in)
1959	33.0 mm (1.3 in)
1960	59.0 mm (2.3 in)
1961	42.5 mm (1.7 in)
1962	43.0 mm (1.7 in)
1963	41.0 mm (1.6 in)
1964	45.0 mm (1.8 in)
1965	47.0 mm (1.9 in)
1966	37.5 mm (1.5 in)
1967	98.0 mm (3.9 in)
1968	55.5 mm (2.2 in)
1969	34.0 mm (1.3 in)
1970	34.5 mm (1.4 in)
1971	46.0 mm (1.8 in)
1972	36.5 mm (1.4 in)
1973	49.0 mm (1.9 in)
1974	51.5 mm (2.0 in)
1975	40.0 mm (1.6 in)
1976	68.0 mm (2.7 in)
1977	31.5 mm (1.2 in)
1978	30.5 mm (1.2 in)
1979	34.0 mm (1.3 in)
1980	80.0 mm (3.1 in)
1981	43.0 mm (1.7 in)
1982	50.0 mm (2.0 in)
1983	37.0 mm (1.5 in)
1984	49.0 mm (1.9 in)
1985	38.5 mm (1.5 in)
1986	64.0 mm (2.5 in)
1987	42.0 mm (1.7 in)
1988	62.0 mm (2.4 in)
1989	62.5 mm (2.5 in)
1990	56.0 mm (2.2 in)
1991	36.5 mm (1.4 in)
1992	47.0 mm (1.9 in)
1993	31.5 mm (1.2 in)
1994	36.5 mm (1.4 in)
1995	58.0 mm (2.3 in)
1996	49.0 mm (1.9 in)
1997	49.0 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Grootkuil, 1911 to 1997. The record is 186.5 mm (7.3 in) in 1955, marked on the chart; the median year is 75.0 mm (3.0 in).

Wettest five days (Rx5day) at Grootkuil by year
Year	Wettest five days (Rx5day)
1911	42.7 mm (1.7 in)
1912	83.8 mm (3.3 in)
1913	52.8 mm (2.1 in)
1914	42.1 mm (1.7 in)
1915	31.7 mm (1.2 in)
1916	56.6 mm (2.2 in)
1917	50.3 mm (2.0 in)
1918	60.9 mm (2.4 in)
1919	7.4 mm (0.29 in)
1921	117.3 mm (4.6 in)
1922	86.3 mm (3.4 in)
1923	10.7 mm (0.4 in)
1925	96.5 mm (3.8 in)
1926	66.7 mm (2.6 in)
1927	75.7 mm (3.0 in)
1928	49.8 mm (2.0 in)
1929	63.3 mm (2.5 in)
1930	63.2 mm (2.5 in)
1931	70.9 mm (2.8 in)
1932	35.3 mm (1.4 in)
1933	104.7 mm (4.1 in)
1934	77.3 mm (3.0 in)
1935	75.0 mm (3.0 in)
1936	97.5 mm (3.8 in)
1937	105.4 mm (4.1 in)
1938	65.8 mm (2.6 in)
1939	44.2 mm (1.7 in)
1940	88.9 mm (3.5 in)
1941	78.7 mm (3.1 in)
1942	66.0 mm (2.6 in)
1943	103.7 mm (4.1 in)
1944	72.4 mm (2.9 in)
1945	84.5 mm (3.3 in)
1946	99.8 mm (3.9 in)
1947	59.4 mm (2.3 in)
1948	98.8 mm (3.9 in)
1949	91.0 mm (3.6 in)
1950	56.1 mm (2.2 in)
1951	39.9 mm (1.6 in)
1952	53.8 mm (2.1 in)
1953	52.6 mm (2.1 in)
1954	125.6 mm (4.9 in)
1955	186.5 mm (7.3 in)
1956	86.6 mm (3.4 in)
1957	83.0 mm (3.3 in)
1958	56.5 mm (2.2 in)
1959	67.0 mm (2.6 in)
1960	77.2 mm (3.0 in)
1961	63.5 mm (2.5 in)
1962	72.5 mm (2.9 in)
1963	81.5 mm (3.2 in)
1964	99.5 mm (3.9 in)
1965	71.0 mm (2.8 in)
1966	84.0 mm (3.3 in)
1967	121.0 mm (4.8 in)
1968	71.5 mm (2.8 in)
1969	70.5 mm (2.8 in)
1970	51.4 mm (2.0 in)
1971	58.0 mm (2.3 in)
1972	90.5 mm (3.6 in)
1973	89.5 mm (3.5 in)
1974	123.0 mm (4.8 in)
1975	78.0 mm (3.1 in)
1976	79.5 mm (3.1 in)
1977	59.0 mm (2.3 in)
1978	56.0 mm (2.2 in)
1979	67.0 mm (2.6 in)
1980	125.5 mm (4.9 in)
1981	87.0 mm (3.4 in)
1982	88.0 mm (3.5 in)
1983	43.5 mm (1.7 in)
1984	74.8 mm (2.9 in)
1985	86.5 mm (3.4 in)
1986	89.5 mm (3.5 in)
1987	68.5 mm (2.7 in)
1988	118.0 mm (4.6 in)
1989	80.5 mm (3.2 in)
1990	85.5 mm (3.4 in)
1991	84.0 mm (3.3 in)
1992	63.5 mm (2.5 in)
1993	58.5 mm (2.3 in)
1994	41.5 mm (1.6 in)
1995	86.5 mm (3.4 in)
1996	88.5 mm (3.5 in)
1997	93.5 mm (3.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Grootkuil, 1911 to 1997. The record is 181 days in 1994, marked on the chart; the median year is 86 days.

Longest dry spell (CDD) at Grootkuil by year
Year	Longest dry spell (CDD)
1911	54 days
1912	88 days
1913	107 days
1914	51 days
1915	41 days
1916	66 days
1917	23 days
1918	62 days
1919	22 days
1921	12 days
1922	36 days
1923	28 days
1925	19 days
1926	117 days
1927	93 days
1928	116 days
1929	30 days
1930	82 days
1931	100 days
1932	170 days
1933	149 days
1934	51 days
1935	95 days
1936	140 days
1937	173 days
1938	66 days
1939	87 days
1940	86 days
1941	111 days
1942	93 days
1943	40 days
1944	95 days
1945	86 days
1946	129 days
1947	126 days
1948	148 days
1949	52 days
1950	54 days
1951	106 days
1952	95 days
1953	86 days
1954	115 days
1955	73 days
1956	107 days
1957	75 days
1958	110 days
1959	78 days
1960	53 days
1961	65 days
1962	109 days
1963	65 days
1964	61 days
1965	63 days
1966	129 days
1967	138 days
1968	96 days
1969	40 days
1970	40 days
1971	119 days
1972	120 days
1973	109 days
1974	104 days
1975	145 days
1976	143 days
1977	146 days
1978	148 days
1979	46 days
1980	151 days
1981	103 days
1982	53 days
1983	75 days
1984	68 days
1985	84 days
1986	85 days
1987	82 days
1988	60 days
1989	53 days
1990	52 days
1991	87 days
1992	95 days
1993	87 days
1994	181 days
1995	101 days
1996	49 days
1997	45 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

73 years, 1912 to 1996

A day with at least 43.9 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 105.9 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Grootkuil: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	43.9 mm (1.7 in)
5 years	57.5 mm (2.3 in)
10 years	67.6 mm (2.7 in)
25 years	81.8 mm (3.2 in)
50 years	93.4 mm (3.7 in)
100 years	105.9 mm (4.2 in)	Longer than the 73 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, 73 years of values from 1912 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: 102.0 mm (4.0 in) in 1955; 98.0 mm (3.9 in) in 1967; 86.1 mm (3.4 in) in 1946.

Download the Data

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