Griquatown (Tnk) Weather Records (SF002874410)

Record envelope, standing records and threshold days for Griquatown (Tnk) (SF002874410), South Africa, with 115 years of record.

Key Facts for Griquatown (Tnk)

Griquatown (Tnk) (SF002874410) is a weather station in South Africa at -28.85 latitude and 23.27 longitude, 1,332 m (4,370 ft) above sea level.
The station reports from 1883 to 1997, 115 years of record.
0 records set at Griquatown (Tnk) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Griquatown (Tnk) set a daily record precipitation of 7.5 mm (0.30 in) on 27 July 1997.

About the Station

Location: South Africa, -28.85 latitude, 23.27 longitude.
Elevation: 1,332 m (4,370 ft).
Period of record: 1883 to 1997, 115 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 Griquatown (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 Griquatown (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 Griquatown (Tnk) still stand.

Wettest Day of Each Month

Mar: 97.8 mm (3.9 in)

The wettest day on record for each calendar month at Griquatown (Tnk). The most was 97.8 mm (3.9 in) on 7 March 1884.

Record daily precipitation for each month at Griquatown (Tnk)
Month	Record daily precipitation (mm)	Date
Jan	85.0 mm (3.3 in)	30 January 1955
Feb	70.2 mm (2.8 in)	22 February 1988
Mar	97.8 mm (3.9 in)	7 March 1884
Apr	44.5 mm (1.8 in)	19 April 1894
May	40.6 mm (1.6 in)	12 May 1950
Jun	50.8 mm (2.0 in)	18 June 1894
Jul	22.6 mm (0.9 in)	30 July 1918
Aug	90.0 mm (3.5 in)	11 August 1980
Sep	54.6 mm (2.1 in)	7 September 1929
Oct	70.0 mm (2.8 in)	15 October 1981
Nov	62.0 mm (2.4 in)	13 November 1885
Dec	66.0 mm (2.6 in)	11 December 1895

Latest Records

Latest records at Griquatown (Tnk)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 July 1997	Griquatown (Tnk), ZA	daily rain	7.5 mm (0.30 in)	5.0 mm (0.20 in)	72 years	20 of 100 (Routine)
11 June 1997	Griquatown (Tnk), ZA	daily rain	6.0 mm (0.24 in)	0.7 mm (0.03 in)	106 years	20 of 100 (Routine)
6 May 1997	Griquatown (Tnk), ZA	daily rain	36.0 mm (1.4 in)	8.1 mm (0.32 in)	106 years	50 of 100 (Notable)
18 January 1997	Griquatown (Tnk), ZA	daily rain	77.5 mm (3.1 in)	43.8 mm (1.7 in)	21 years	54 of 100 (Notable)
15 November 1996	Griquatown (Tnk), ZA	daily rain	24.0 mm (0.9 in)	4.9 mm (0.19 in)	100 years	20 of 100 (Routine)
7 November 1996	Griquatown (Tnk), ZA	daily rain	31.0 mm (1.2 in)	14.7 mm (0.6 in)	27 years	35 of 100 (Notable)
17 September 1996	Griquatown (Tnk), ZA	daily rain	5.5 mm (0.22 in)	5.5 mm (0.22 in)	112 years	20 of 100 (Routine)
24 July 1996	Griquatown (Tnk), ZA	daily rain	4.5 mm (0.18 in)	0.2 mm (0.01 in)	50 years	20 of 100 (Routine)
22 July 1996	Griquatown (Tnk), ZA	daily rain	7.0 mm (0.28 in)	6.0 mm (0.24 in)	4 years	20 of 100 (Routine)
28 February 1996	Griquatown (Tnk), ZA	daily rain	34.0 mm (1.3 in)	4.0 mm (0.16 in)	21 years	19 of 100 (Routine)
25 January 1996	Griquatown (Tnk), ZA	daily rain	29.0 mm (1.1 in)	6.0 mm (0.24 in)	14 years	19 of 100 (Routine)
15 January 1996	Griquatown (Tnk), ZA	daily rain	20.5 mm (0.8 in)	5.5 mm (0.22 in)	5 years	15 of 100 (Routine)
9 December 1995	Griquatown (Tnk), ZA	daily rain	29.5 mm (1.2 in)	16.9 mm (0.7 in)	16 years	32 of 100 (Routine)
5 December 1995	Griquatown (Tnk), ZA	daily rain	17.0 mm (0.7 in)	4.8 mm (0.19 in)	73 years	20 of 100 (Routine)
19 November 1995	Griquatown (Tnk), ZA	daily rain	31.0 mm (1.2 in)	11.5 mm (0.5 in)	32 years	32 of 100 (Routine)
4 June 1995	Griquatown (Tnk), ZA	daily rain	4.0 mm (0.16 in)	2.3 mm (0.09 in)	28 years	20 of 100 (Routine)
23 March 1995	Griquatown (Tnk), ZA	daily rain	13.5 mm (0.5 in)	1.5 mm (0.06 in)	29 years	19 of 100 (Routine)
13 January 1995	Griquatown (Tnk), ZA	daily rain	11.5 mm (0.5 in)	1.6 mm (0.06 in)	48 years	20 of 100 (Routine)
17 January 1994	Griquatown (Tnk), ZA	daily rain	25.5 mm (1.0 in)	0.1 mm (0.00 in)	64 years	29 of 100 (Routine)
12 January 1994	Griquatown (Tnk), ZA	daily rain	14.5 mm (0.6 in)	0.2 mm (0.01 in)	8 years	12 of 100 (Routine)

Extremes by Year

1883 to 1997

Yearly extremes at Griquatown (Tnk): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	97.8 mm (3.9 in)	1884	37.0 mm (1.5 in)	99
Wettest five days (Rx5day)	159.0 mm (6.3 in)	1974	55.0 mm (2.2 in)	99
Longest dry spell (CDD)	257 days	1896	94 days	99

Wettest day (Rx1day)

The wettest day of the year at Griquatown (Tnk), 1883 to 1997. The record is 97.8 mm (3.9 in) in 1884, marked on the chart; the median year is 37.0 mm (1.5 in).

Wettest day (Rx1day) at Griquatown (Tnk) by year
Year	Wettest day (Rx1day)
1883	20.3 mm (0.8 in)
1884	97.8 mm (3.9 in)
1885	62.0 mm (2.4 in)
1886	42.2 mm (1.7 in)
1887	27.9 mm (1.1 in)
1888	26.4 mm (1.0 in)
1889	23.6 mm (0.9 in)
1890	38.1 mm (1.5 in)
1891	38.1 mm (1.5 in)
1893	31.8 mm (1.3 in)
1894	57.2 mm (2.3 in)
1895	66.0 mm (2.6 in)
1896	16.3 mm (0.6 in)
1897	30.5 mm (1.2 in)
1898	44.5 mm (1.8 in)
1899	76.2 mm (3.0 in)
1900	21.6 mm (0.9 in)
1901	39.1 mm (1.5 in)
1902	34.0 mm (1.3 in)
1903	42.7 mm (1.7 in)
1904	50.8 mm (2.0 in)
1905	19.8 mm (0.8 in)
1906	24.1 mm (0.9 in)
1907	38.1 mm (1.5 in)
1908	18.5 mm (0.7 in)
1909	54.1 mm (2.1 in)
1910	36.8 mm (1.4 in)
1911	35.8 mm (1.4 in)
1912	15.2 mm (0.6 in)
1913	35.8 mm (1.4 in)
1914	21.6 mm (0.9 in)
1915	32.5 mm (1.3 in)
1916	24.1 mm (0.9 in)
1917	36.8 mm (1.4 in)
1918	48.5 mm (1.9 in)
1919	52.1 mm (2.1 in)
1920	39.6 mm (1.6 in)
1921	36.8 mm (1.4 in)
1922	14.5 mm (0.6 in)
1923	33.0 mm (1.3 in)
1924	20.3 mm (0.8 in)
1925	34.3 mm (1.4 in)
1926	17.8 mm (0.7 in)
1927	35.8 mm (1.4 in)
1928	57.4 mm (2.3 in)
1929	54.6 mm (2.1 in)
1930	33.0 mm (1.3 in)
1946	27.7 mm (1.1 in)
1947	40.4 mm (1.6 in)
1948	87.6 mm (3.4 in)
1949	31.0 mm (1.2 in)
1950	40.6 mm (1.6 in)
1951	33.8 mm (1.3 in)
1952	36.6 mm (1.4 in)
1953	27.0 mm (1.1 in)
1954	35.5 mm (1.4 in)
1955	85.0 mm (3.3 in)
1956	44.5 mm (1.8 in)
1957	36.5 mm (1.4 in)
1958	40.0 mm (1.6 in)
1959	58.0 mm (2.3 in)
1960	18.5 mm (0.7 in)
1961	43.0 mm (1.7 in)
1962	48.5 mm (1.9 in)
1963	42.0 mm (1.7 in)
1964	40.0 mm (1.6 in)
1965	36.5 mm (1.4 in)
1966	42.7 mm (1.7 in)
1967	42.0 mm (1.7 in)
1968	46.5 mm (1.8 in)
1969	36.0 mm (1.4 in)
1970	28.0 mm (1.1 in)
1971	55.0 mm (2.2 in)
1972	51.0 mm (2.0 in)
1973	50.5 mm (2.0 in)
1974	55.5 mm (2.2 in)
1975	79.5 mm (3.1 in)
1976	47.0 mm (1.9 in)
1977	53.0 mm (2.1 in)
1978	50.0 mm (2.0 in)
1979	30.6 mm (1.2 in)
1980	90.0 mm (3.5 in)
1981	70.0 mm (2.8 in)
1982	45.0 mm (1.8 in)
1983	37.0 mm (1.5 in)
1984	29.0 mm (1.1 in)
1985	28.5 mm (1.1 in)
1986	20.5 mm (0.8 in)
1987	30.0 mm (1.2 in)
1988	70.2 mm (2.8 in)
1989	53.0 mm (2.1 in)
1990	45.0 mm (1.8 in)
1991	31.0 mm (1.2 in)
1992	19.0 mm (0.7 in)
1993	26.0 mm (1.0 in)
1994	48.0 mm (1.9 in)
1995	31.0 mm (1.2 in)
1996	34.0 mm (1.3 in)
1997	77.5 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Griquatown (Tnk), 1883 to 1997. The record is 159.0 mm (6.3 in) in 1974, marked on the chart; the median year is 55.0 mm (2.2 in).

Wettest five days (Rx5day) at Griquatown (Tnk) by year
Year	Wettest five days (Rx5day)
1883	20.3 mm (0.8 in)
1884	121.9 mm (4.8 in)
1885	71.1 mm (2.8 in)
1886	88.4 mm (3.5 in)
1887	36.6 mm (1.4 in)
1888	38.8 mm (1.5 in)
1889	38.1 mm (1.5 in)
1890	44.0 mm (1.7 in)
1891	85.6 mm (3.4 in)
1893	49.3 mm (1.9 in)
1894	143.6 mm (5.7 in)
1895	90.1 mm (3.5 in)
1896	34.9 mm (1.4 in)
1897	54.6 mm (2.1 in)
1898	51.0 mm (2.0 in)
1899	103.1 mm (4.1 in)
1900	32.3 mm (1.3 in)
1901	52.1 mm (2.1 in)
1902	60.5 mm (2.4 in)
1903	42.7 mm (1.7 in)
1904	66.0 mm (2.6 in)
1905	38.4 mm (1.5 in)
1906	29.9 mm (1.2 in)
1907	66.0 mm (2.6 in)
1908	25.9 mm (1.0 in)
1909	86.3 mm (3.4 in)
1910	40.4 mm (1.6 in)
1911	78.0 mm (3.1 in)
1912	19.6 mm (0.8 in)
1913	52.9 mm (2.1 in)
1914	35.9 mm (1.4 in)
1915	77.7 mm (3.1 in)
1916	27.9 mm (1.1 in)
1917	58.7 mm (2.3 in)
1918	82.1 mm (3.2 in)
1919	58.5 mm (2.3 in)
1920	104.6 mm (4.1 in)
1921	44.4 mm (1.7 in)
1922	19.3 mm (0.8 in)
1923	63.0 mm (2.5 in)
1924	39.6 mm (1.6 in)
1925	79.6 mm (3.1 in)
1926	25.4 mm (1.0 in)
1927	49.8 mm (2.0 in)
1928	82.6 mm (3.3 in)
1929	76.1 mm (3.0 in)
1930	55.6 mm (2.2 in)
1946	41.2 mm (1.6 in)
1947	52.0 mm (2.0 in)
1948	87.6 mm (3.4 in)
1949	41.4 mm (1.6 in)
1950	82.1 mm (3.2 in)
1951	44.7 mm (1.8 in)
1952	48.3 mm (1.9 in)
1953	52.0 mm (2.0 in)
1954	67.5 mm (2.7 in)
1955	116.0 mm (4.6 in)
1956	73.5 mm (2.9 in)
1957	44.0 mm (1.7 in)
1958	86.0 mm (3.4 in)
1959	117.5 mm (4.6 in)
1960	32.0 mm (1.3 in)
1961	47.0 mm (1.9 in)
1962	75.0 mm (3.0 in)
1963	82.0 mm (3.2 in)
1964	41.0 mm (1.6 in)
1965	51.0 mm (2.0 in)
1966	59.7 mm (2.4 in)
1967	77.7 mm (3.1 in)
1968	48.0 mm (1.9 in)
1969	62.0 mm (2.4 in)
1970	36.0 mm (1.4 in)
1971	87.0 mm (3.4 in)
1972	55.0 mm (2.2 in)
1973	65.5 mm (2.6 in)
1974	159.0 mm (6.3 in)
1975	114.0 mm (4.5 in)
1976	116.0 mm (4.6 in)
1977	84.0 mm (3.3 in)
1978	66.0 mm (2.6 in)
1979	54.6 mm (2.1 in)
1980	90.0 mm (3.5 in)
1981	86.5 mm (3.4 in)
1982	45.0 mm (1.8 in)
1983	68.0 mm (2.7 in)
1984	53.0 mm (2.1 in)
1985	49.5 mm (1.9 in)
1986	36.0 mm (1.4 in)
1987	42.5 mm (1.7 in)
1988	147.2 mm (5.8 in)
1989	106.5 mm (4.2 in)
1990	61.0 mm (2.4 in)
1991	53.2 mm (2.1 in)
1992	32.9 mm (1.3 in)
1993	35.0 mm (1.4 in)
1994	50.0 mm (2.0 in)
1995	46.5 mm (1.8 in)
1996	55.0 mm (2.2 in)
1997	90.0 mm (3.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Griquatown (Tnk), 1883 to 1997. The record is 257 days in 1896, marked on the chart; the median year is 94 days.

Longest dry spell (CDD) at Griquatown (Tnk) by year
Year	Longest dry spell (CDD)
1883	103 days
1884	130 days
1885	92 days
1886	63 days
1887	62 days
1888	63 days
1889	148 days
1890	105 days
1891	32 days
1893	170 days
1894	63 days
1895	88 days
1896	257 days
1897	124 days
1898	150 days
1899	30 days
1900	56 days
1901	52 days
1902	111 days
1903	106 days
1904	140 days
1905	89 days
1906	117 days
1907	99 days
1908	67 days
1909	77 days
1910	119 days
1911	72 days
1912	104 days
1913	63 days
1914	81 days
1915	88 days
1916	100 days
1917	87 days
1918	35 days
1919	78 days
1920	87 days
1921	125 days
1922	63 days
1923	91 days
1924	87 days
1925	132 days
1926	77 days
1927	100 days
1928	100 days
1929	58 days
1930	68 days
1946	68 days
1947	99 days
1948	239 days
1949	217 days
1950	108 days
1951	134 days
1952	107 days
1953	148 days
1954	142 days
1955	88 days
1956	175 days
1957	58 days
1958	106 days
1959	110 days
1960	76 days
1961	108 days
1962	105 days
1963	73 days
1964	120 days
1965	51 days
1966	104 days
1967	64 days
1968	158 days
1969	129 days
1970	62 days
1971	115 days
1972	165 days
1973	83 days
1974	67 days
1975	65 days
1976	66 days
1977	60 days
1978	75 days
1979	98 days
1980	143 days
1981	117 days
1982	142 days
1983	95 days
1984	117 days
1985	162 days
1986	66 days
1987	94 days
1988	59 days
1989	55 days
1990	114 days
1991	99 days
1992	65 days
1993	73 days
1994	74 days
1995	102 days
1996	80 days
1997	46 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

91 years, 1884 to 1997

A day with at least 38.0 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 96.8 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Griquatown (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	38.0 mm (1.5 in)
5 years	53.2 mm (2.1 in)
10 years	63.4 mm (2.5 in)
25 years	76.7 mm (3.0 in)
50 years	86.7 mm (3.4 in)
100 years	96.8 mm (3.8 in)	Longer than the 91 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, 91 years of values from 1884 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: 97.8 mm (3.9 in) in 1884; 90.0 mm (3.5 in) in 1980; 87.6 mm (3.4 in) in 1948.

Download the Data

Data for Griquatown (Tnk) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Griquatown (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 2026-10-17 (17 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