Merweville Weather Records (SF000680100)

Record envelope, standing records and threshold days for Merweville (SF000680100), South Africa, with 88 years of record.

Key Facts for Merweville

Merweville (SF000680100) is a weather station in South Africa at -32.67 latitude and 21.52 longitude, 732 m (2,402 ft) above sea level.
The station reports from 1910 to 1997, 88 years of record.
0 records set at Merweville still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Merweville set a daily record precipitation of 10.0 mm (0.4 in) on 8 June 1997.

About the Station

Location: South Africa, -32.67 latitude, 21.52 longitude.
Elevation: 732 m (2,402 ft).
Period of record: 1910 to 1997, 88 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 Merweville. 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 Merweville, 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 Merweville still stand.

Wettest Day of Each Month

Feb: 91.4 mm (3.6 in)

The wettest day on record for each calendar month at Merweville. The most was 91.4 mm (3.6 in) on 5 February 1913.

Record daily precipitation for each month at Merweville
Month	Record daily precipitation (mm)	Date
Jan	91.0 mm (3.6 in)	24 January 1981
Feb	91.4 mm (3.6 in)	5 February 1913
Mar	71.0 mm (2.8 in)	25 March 1981
Apr	41.4 mm (1.6 in)	6 April 1941
May	62.0 mm (2.4 in)	26 May 1967
Jun	38.6 mm (1.5 in)	11 June 1935
Jul	43.0 mm (1.7 in)	20 July 1979
Aug	41.1 mm (1.6 in)	21 August 1939
Sep	55.0 mm (2.2 in)	16 September 1964
Oct	29.0 mm (1.1 in)	22 October 1996
Nov	43.7 mm (1.7 in)	8 November 1933
Dec	70.6 mm (2.8 in)	2 December 1936

Latest Records

Latest records at Merweville
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 June 1997	Merweville, ZA	daily rain	10.0 mm (0.4 in)	9.5 mm (0.37 in)	23 years	20 of 100 (Routine)
28 December 1996	Merweville, ZA	daily rain	31.0 mm (1.2 in)	26.2 mm (1.0 in)	65 years	46 of 100 (Notable)
7 December 1996	Merweville, ZA	daily rain	25.0 mm (1.0 in)	20.0 mm (0.8 in)	15 years	26 of 100 (Routine)
16 November 1996	Merweville, ZA	daily rain	25.9 mm (1.0 in)	20.3 mm (0.8 in)	47 years	46 of 100 (Notable)
7 November 1996	Merweville, ZA	daily rain	17.0 mm (0.7 in)	9.0 mm (0.35 in)	25 years	20 of 100 (Routine)
6 November 1996	Merweville, ZA	daily rain	30.5 mm (1.2 in)	3.0 mm (0.12 in)	20 years	17 of 100 (Routine)
22 October 1996	Merweville, ZA	monthly rain	29.0 mm (1.1 in)	2.0 mm (0.08 in)	39 years	32 of 100 (Routine)
19 October 1996	Merweville, ZA	daily rain	14.0 mm (0.6 in)	9.5 mm (0.37 in)	3 years	20 of 100 (Routine)
4 August 1996	Merweville, ZA	daily rain	5.6 mm (0.22 in)	1.6 mm (0.06 in)	15 years	13 of 100 (Routine)
29 February 1996	Merweville, ZA	daily rain	6.0 mm (0.24 in)	2.0 mm (0.08 in)	20 years	15 of 100 (Routine)
25 December 1995	Merweville, ZA	daily rain	7.0 mm (0.28 in)	3.7 mm (0.15 in)	17 years	15 of 100 (Routine)
23 December 1995	Merweville, ZA	daily rain	28.5 mm (1.1 in)	28.5 mm (1.1 in)	84 years	54 of 100 (Notable)
13 December 1995	Merweville, ZA	daily rain	18.0 mm (0.7 in)	7.1 mm (0.28 in)	42 years	20 of 100 (Routine)
5 May 1995	Merweville, ZA	daily rain	26.0 mm (1.0 in)	20.5 mm (0.8 in)	20 years	35 of 100 (Notable)
28 February 1995	Merweville, ZA	daily rain	66.5 mm (2.6 in)	40.0 mm (1.6 in)	17 years	49 of 100 (Notable)
21 October 1994	Merweville, ZA	daily rain	14.6 mm (0.6 in)	9.5 mm (0.37 in)	41 years	20 of 100 (Routine)
19 January 1994	Merweville, ZA	daily rain	20.0 mm (0.8 in)	15.2 mm (0.6 in)	76 years	20 of 100 (Routine)
19 October 1993	Merweville, ZA	daily rain	4.5 mm (0.18 in)	4.5 mm (0.18 in)	82 years	20 of 100 (Routine)
22 September 1993	Merweville, ZA	daily rain	18.0 mm (0.7 in)	14.4 mm (0.6 in)	76 years	20 of 100 (Routine)
30 August 1993	Merweville, ZA	daily rain	11.0 mm (0.4 in)	9.5 mm (0.37 in)	7 years	19 of 100 (Routine)

Extremes by Year

1910 to 1997

Yearly extremes at Merweville: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	91.4 mm (3.6 in)	1913	28.8 mm (1.1 in)	88
Wettest five days (Rx5day)	114.3 mm (4.5 in)	1937	34.0 mm (1.3 in)	88
Longest dry spell (CDD)	261 days	1924	95 days	88

Wettest day (Rx1day)

The wettest day of the year at Merweville, 1910 to 1997. The record is 91.4 mm (3.6 in) in 1913, marked on the chart; the median year is 28.8 mm (1.1 in).

Wettest day (Rx1day) at Merweville by year
Year	Wettest day (Rx1day)
1910	10.7 mm (0.4 in)
1911	38.1 mm (1.5 in)
1912	32.5 mm (1.3 in)
1913	91.4 mm (3.6 in)
1914	27.4 mm (1.1 in)
1915	17.8 mm (0.7 in)
1916	22.4 mm (0.9 in)
1917	24.1 mm (0.9 in)
1918	34.3 mm (1.4 in)
1919	12.7 mm (0.5 in)
1920	19.1 mm (0.8 in)
1921	53.8 mm (2.1 in)
1922	23.6 mm (0.9 in)
1923	20.3 mm (0.8 in)
1924	33.5 mm (1.3 in)
1925	27.9 mm (1.1 in)
1926	8.4 mm (0.33 in)
1927	7.6 mm (0.30 in)
1928	38.9 mm (1.5 in)
1929	12.2 mm (0.5 in)
1930	20.3 mm (0.8 in)
1931	27.7 mm (1.1 in)
1932	13.0 mm (0.5 in)
1933	43.7 mm (1.7 in)
1934	20.8 mm (0.8 in)
1935	38.6 mm (1.5 in)
1936	70.6 mm (2.8 in)
1937	59.9 mm (2.4 in)
1938	31.8 mm (1.3 in)
1939	41.1 mm (1.6 in)
1940	33.0 mm (1.3 in)
1941	41.4 mm (1.6 in)
1942	20.6 mm (0.8 in)
1943	12.2 mm (0.5 in)
1944	18.3 mm (0.7 in)
1945	22.6 mm (0.9 in)
1946	17.3 mm (0.7 in)
1947	19.6 mm (0.8 in)
1948	31.5 mm (1.2 in)
1949	12.7 mm (0.5 in)
1950	35.6 mm (1.4 in)
1951	31.0 mm (1.2 in)
1952	30.0 mm (1.2 in)
1953	30.0 mm (1.2 in)
1954	48.0 mm (1.9 in)
1955	32.5 mm (1.3 in)
1956	29.5 mm (1.2 in)
1957	26.5 mm (1.0 in)
1958	13.0 mm (0.5 in)
1959	2.5 mm (0.10 in)
1960	14.0 mm (0.6 in)
1961	38.0 mm (1.5 in)
1962	28.5 mm (1.1 in)
1963	29.0 mm (1.1 in)
1964	55.0 mm (2.2 in)
1965	25.5 mm (1.0 in)
1966	13.0 mm (0.5 in)
1967	62.0 mm (2.4 in)
1968	24.5 mm (1.0 in)
1969	27.0 mm (1.1 in)
1970	40.0 mm (1.6 in)
1971	30.0 mm (1.2 in)
1972	20.8 mm (0.8 in)
1973	31.5 mm (1.2 in)
1974	34.5 mm (1.4 in)
1975	42.0 mm (1.7 in)
1976	52.5 mm (2.1 in)
1977	26.5 mm (1.0 in)
1978	12.4 mm (0.5 in)
1979	43.0 mm (1.7 in)
1980	50.0 mm (2.0 in)
1981	91.0 mm (3.6 in)
1982	32.4 mm (1.3 in)
1983	10.0 mm (0.4 in)
1984	56.5 mm (2.2 in)
1985	58.0 mm (2.3 in)
1986	29.0 mm (1.1 in)
1987	34.0 mm (1.3 in)
1988	25.0 mm (1.0 in)
1989	21.0 mm (0.8 in)
1990	33.5 mm (1.3 in)
1991	20.5 mm (0.8 in)
1992	26.0 mm (1.0 in)
1993	20.0 mm (0.8 in)
1994	20.0 mm (0.8 in)
1995	66.5 mm (2.6 in)
1996	31.0 mm (1.2 in)
1997	13.0 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Merweville, 1910 to 1997. The record is 114.3 mm (4.5 in) in 1937, marked on the chart; the median year is 34.0 mm (1.3 in).

Wettest five days (Rx5day) at Merweville by year
Year	Wettest five days (Rx5day)
1910	10.7 mm (0.4 in)
1911	40.6 mm (1.6 in)
1912	32.5 mm (1.3 in)
1913	104.6 mm (4.1 in)
1914	27.4 mm (1.1 in)
1915	17.8 mm (0.7 in)
1916	27.5 mm (1.1 in)
1917	29.0 mm (1.1 in)
1918	48.1 mm (1.9 in)
1919	20.3 mm (0.8 in)
1920	21.4 mm (0.8 in)
1921	60.9 mm (2.4 in)
1922	30.5 mm (1.2 in)
1923	33.0 mm (1.3 in)
1924	33.5 mm (1.3 in)
1925	33.1 mm (1.3 in)
1926	8.4 mm (0.33 in)
1927	7.6 mm (0.30 in)
1928	55.4 mm (2.2 in)
1929	17.5 mm (0.7 in)
1930	33.3 mm (1.3 in)
1931	27.7 mm (1.1 in)
1932	20.4 mm (0.8 in)
1933	56.9 mm (2.2 in)
1934	28.0 mm (1.1 in)
1935	48.5 mm (1.9 in)
1936	91.5 mm (3.6 in)
1937	114.3 mm (4.5 in)
1938	37.6 mm (1.5 in)
1939	63.7 mm (2.5 in)
1940	33.0 mm (1.3 in)
1941	50.5 mm (2.0 in)
1942	35.1 mm (1.4 in)
1943	13.0 mm (0.5 in)
1944	24.9 mm (1.0 in)
1945	49.2 mm (1.9 in)
1946	28.0 mm (1.1 in)
1947	36.2 mm (1.4 in)
1948	31.5 mm (1.2 in)
1949	23.9 mm (0.9 in)
1950	35.6 mm (1.4 in)
1951	31.0 mm (1.2 in)
1952	40.9 mm (1.6 in)
1953	32.0 mm (1.3 in)
1954	48.0 mm (1.9 in)
1955	52.5 mm (2.1 in)
1956	41.5 mm (1.6 in)
1957	33.5 mm (1.3 in)
1958	33.5 mm (1.3 in)
1959	2.5 mm (0.10 in)
1960	22.0 mm (0.9 in)
1961	59.2 mm (2.3 in)
1962	33.0 mm (1.3 in)
1963	34.5 mm (1.4 in)
1964	62.5 mm (2.5 in)
1965	28.0 mm (1.1 in)
1966	16.0 mm (0.6 in)
1967	62.0 mm (2.4 in)
1968	27.0 mm (1.1 in)
1969	63.5 mm (2.5 in)
1970	63.0 mm (2.5 in)
1971	59.5 mm (2.3 in)
1972	25.5 mm (1.0 in)
1973	40.0 mm (1.6 in)
1974	53.0 mm (2.1 in)
1975	42.0 mm (1.7 in)
1976	94.5 mm (3.7 in)
1977	36.0 mm (1.4 in)
1978	14.0 mm (0.6 in)
1979	46.0 mm (1.8 in)
1980	50.0 mm (2.0 in)
1981	113.0 mm (4.4 in)
1982	68.4 mm (2.7 in)
1983	20.0 mm (0.8 in)
1984	71.5 mm (2.8 in)
1985	100.0 mm (3.9 in)
1986	39.0 mm (1.5 in)
1987	49.0 mm (1.9 in)
1988	35.0 mm (1.4 in)
1989	28.0 mm (1.1 in)
1990	52.0 mm (2.0 in)
1991	24.0 mm (0.9 in)
1992	26.0 mm (1.0 in)
1993	22.0 mm (0.9 in)
1994	23.0 mm (0.9 in)
1995	69.0 mm (2.7 in)
1996	49.5 mm (1.9 in)
1997	31.0 mm (1.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Merweville, 1910 to 1997. The record is 261 days in 1924, marked on the chart; the median year is 95 days.

Longest dry spell (CDD) at Merweville by year
Year	Longest dry spell (CDD)
1910	27 days
1911	69 days
1912	197 days
1913	73 days
1914	207 days
1915	133 days
1916	64 days
1917	90 days
1918	82 days
1919	145 days
1920	112 days
1921	100 days
1922	188 days
1923	116 days
1924	261 days
1925	63 days
1926	128 days
1927	74 days
1928	237 days
1929	61 days
1930	158 days
1931	65 days
1932	94 days
1933	113 days
1934	82 days
1935	59 days
1936	58 days
1937	157 days
1938	65 days
1939	168 days
1940	92 days
1941	69 days
1942	134 days
1943	177 days
1944	110 days
1945	70 days
1946	120 days
1947	90 days
1948	75 days
1949	84 days
1950	98 days
1951	187 days
1952	82 days
1953	63 days
1954	72 days
1955	132 days
1956	70 days
1957	81 days
1958	139 days
1959	59 days
1960	155 days
1961	118 days
1962	148 days
1963	80 days
1964	167 days
1965	110 days
1966	208 days
1967	165 days
1968	126 days
1969	112 days
1970	67 days
1971	95 days
1972	186 days
1973	112 days
1974	70 days
1975	84 days
1976	80 days
1977	89 days
1978	64 days
1979	83 days
1980	134 days
1981	63 days
1982	70 days
1983	59 days
1984	111 days
1985	63 days
1986	52 days
1987	151 days
1988	143 days
1989	102 days
1990	74 days
1991	175 days
1992	63 days
1993	63 days
1994	95 days
1995	91 days
1996	142 days
1997	134 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

82 years, 1911 to 1997

A day with at least 27.7 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 91.3 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Merweville: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	27.7 mm (1.1 in)
5 years	41.7 mm (1.6 in)
10 years	52.1 mm (2.1 in)
25 years	66.7 mm (2.6 in)
50 years	78.5 mm (3.1 in)
100 years	91.3 mm (3.6 in)	Longer than the 82 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, 82 years of values from 1911 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: 91.4 mm (3.6 in) in 1913; 91.0 mm (3.6 in) in 1981; 70.6 mm (2.8 in) in 1936.

Download the Data

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