Swartkoppie Weather Records (SF003654440)

Record envelope, standing records and threshold days for Swartkoppie (SF003654440), South Africa, with 72 years of record.

Key Facts for Swartkoppie

Swartkoppie (SF003654440) is a weather station in South Africa at -27.90 latitude and 27.27 longitude, 1,430 m (4,692 ft) above sea level.
The station reports from 1926 to 1997, 72 years of record.
0 records set at Swartkoppie still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Swartkoppie set a daily record precipitation of 15.5 mm (0.6 in) on 9 September 1997.

About the Station

Location: South Africa, -27.90 latitude, 27.27 longitude.
Elevation: 1,430 m (4,692 ft).
Period of record: 1926 to 1997, 72 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 Swartkoppie. 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 Swartkoppie, 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 Swartkoppie still stand.

Wettest Day of Each Month

Jan: 137.9 mm (5.4 in)

The wettest day on record for each calendar month at Swartkoppie. The most was 137.9 mm (5.4 in) on 15 January 1940.

Record daily precipitation for each month at Swartkoppie
Month	Record daily precipitation (mm)	Date
Jan	137.9 mm (5.4 in)	15 January 1940
Feb	86.0 mm (3.4 in)	23 February 1974
Mar	106.0 mm (4.2 in)	10 March 1988
Apr	63.0 mm (2.5 in)	25 April 1962
May	55.0 mm (2.2 in)	23 May 1997
Jun	38.1 mm (1.5 in)	26 June 1957
Jul	51.3 mm (2.0 in)	10 July 1952
Aug	47.0 mm (1.9 in)	19 August 1979
Sep	51.2 mm (2.0 in)	24 September 1957
Oct	66.3 mm (2.6 in)	9 October 1934
Nov	101.5 mm (4.0 in)	26 November 1996
Dec	53.0 mm (2.1 in)	9 December 1957

Latest Records

Latest records at Swartkoppie
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 September 1997	Swartkoppie, ZA	daily rain	15.5 mm (0.6 in)	8.8 mm (0.35 in)	16 years	20 of 100 (Routine)
27 July 1997	Swartkoppie, ZA	daily rain	22.5 mm (0.9 in)	22.5 mm (0.9 in)	71 years	20 of 100 (Routine)
9 July 1997	Swartkoppie, ZA	daily rain	4.0 mm (0.16 in)	4.0 mm (0.16 in)	71 years	20 of 100 (Routine)
9 June 1997	Swartkoppie, ZA	daily rain	4.0 mm (0.16 in)	1.7 mm (0.07 in)	71 years	20 of 100 (Routine)
23 May 1997	Swartkoppie, ZA	monthly rain	55.0 mm (2.2 in)	27.1 mm (1.1 in)	47 years	70 of 100 (Major)
22 April 1997	Swartkoppie, ZA	daily rain	42.0 mm (1.7 in)	27.8 mm (1.1 in)	54 years	48 of 100 (Notable)
9 March 1997	Swartkoppie, ZA	daily rain	62.5 mm (2.5 in)	24.4 mm (1.0 in)	48 years	39 of 100 (Notable)
26 November 1996	Swartkoppie, ZA	monthly rain	101.5 mm (4.0 in)	24.5 mm (1.0 in)	53 years	55 of 100 (Notable)
15 November 1996	Swartkoppie, ZA	daily rain	35.0 mm (1.4 in)	10.9 mm (0.4 in)	52 years	32 of 100 (Routine)
23 October 1996	Swartkoppie, ZA	daily rain	46.5 mm (1.8 in)	13.5 mm (0.5 in)	40 years	30 of 100 (Routine)
25 July 1996	Swartkoppie, ZA	daily rain	23.0 mm (0.9 in)	10.8 mm (0.4 in)	49 years	20 of 100 (Routine)
6 July 1996	Swartkoppie, ZA	daily rain	11.5 mm (0.5 in)	5.1 mm (0.20 in)	58 years	20 of 100 (Routine)
5 May 1996	Swartkoppie, ZA	daily rain	17.5 mm (0.7 in)	5.0 mm (0.20 in)	19 years	19 of 100 (Routine)
17 April 1996	Swartkoppie, ZA	daily rain	58.5 mm (2.3 in)	41.2 mm (1.6 in)	48 years	60 of 100 (Major)
25 January 1996	Swartkoppie, ZA	daily rain	25.0 mm (1.0 in)	0.5 mm (0.02 in)	20 years	13 of 100 (Routine)
18 January 1996	Swartkoppie, ZA	daily rain	35.0 mm (1.4 in)	8.0 mm (0.31 in)	37 years	23 of 100 (Routine)
1 January 1996	Swartkoppie, ZA	daily rain	39.5 mm (1.6 in)	11.5 mm (0.5 in)	6 years	17 of 100 (Routine)
17 December 1995	Swartkoppie, ZA	daily rain	41.0 mm (1.6 in)	22.0 mm (0.9 in)	10 years	33 of 100 (Routine)
18 November 1995	Swartkoppie, ZA	daily rain	47.0 mm (1.9 in)	3.0 mm (0.12 in)	8 years	11 of 100 (Routine)
16 October 1995	Swartkoppie, ZA	daily rain	20.0 mm (0.8 in)	0.9 mm (0.04 in)	52 years	20 of 100 (Routine)

Extremes by Year

1926 to 1997

Yearly extremes at Swartkoppie: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	137.9 mm (5.4 in)	1940	47.9 mm (1.9 in)	72
Wettest five days (Rx5day)	205.0 mm (8.1 in)	1988	79.8 mm (3.1 in)	72
Longest dry spell (CDD)	147 days	1941	73 days	72

Wettest day (Rx1day)

The wettest day of the year at Swartkoppie, 1926 to 1997. The record is 137.9 mm (5.4 in) in 1940, marked on the chart; the median year is 47.9 mm (1.9 in).

Wettest day (Rx1day) at Swartkoppie by year
Year	Wettest day (Rx1day)
1926	37.6 mm (1.5 in)
1927	29.5 mm (1.2 in)
1928	28.4 mm (1.1 in)
1929	27.2 mm (1.1 in)
1930	35.3 mm (1.4 in)
1931	29.0 mm (1.1 in)
1932	21.8 mm (0.9 in)
1933	46.2 mm (1.8 in)
1934	66.3 mm (2.6 in)
1935	48.3 mm (1.9 in)
1936	47.5 mm (1.9 in)
1937	51.6 mm (2.0 in)
1938	56.4 mm (2.2 in)
1939	66.0 mm (2.6 in)
1940	137.9 mm (5.4 in)
1941	39.9 mm (1.6 in)
1942	63.0 mm (2.5 in)
1943	77.0 mm (3.0 in)
1944	38.1 mm (1.5 in)
1945	52.6 mm (2.1 in)
1946	41.1 mm (1.6 in)
1947	32.3 mm (1.3 in)
1948	83.8 mm (3.3 in)
1949	40.6 mm (1.6 in)
1950	63.5 mm (2.5 in)
1951	34.3 mm (1.4 in)
1952	52.3 mm (2.1 in)
1953	54.2 mm (2.1 in)
1954	61.0 mm (2.4 in)
1955	81.3 mm (3.2 in)
1956	46.5 mm (1.8 in)
1957	76.5 mm (3.0 in)
1958	81.0 mm (3.2 in)
1959	30.5 mm (1.2 in)
1960	49.0 mm (1.9 in)
1961	34.0 mm (1.3 in)
1962	63.0 mm (2.5 in)
1963	36.0 mm (1.4 in)
1964	37.0 mm (1.5 in)
1965	28.0 mm (1.1 in)
1966	63.2 mm (2.5 in)
1967	56.0 mm (2.2 in)
1968	41.0 mm (1.6 in)
1969	24.5 mm (1.0 in)
1970	40.5 mm (1.6 in)
1971	33.0 mm (1.3 in)
1972	82.2 mm (3.2 in)
1973	55.0 mm (2.2 in)
1974	86.0 mm (3.4 in)
1975	86.0 mm (3.4 in)
1976	55.6 mm (2.2 in)
1977	49.3 mm (1.9 in)
1978	29.0 mm (1.1 in)
1979	52.0 mm (2.0 in)
1980	32.0 mm (1.3 in)
1981	39.5 mm (1.6 in)
1982	53.5 mm (2.1 in)
1983	56.0 mm (2.2 in)
1984	41.2 mm (1.6 in)
1985	45.2 mm (1.8 in)
1986	56.0 mm (2.2 in)
1987	50.0 mm (2.0 in)
1988	106.0 mm (4.2 in)
1989	36.0 mm (1.4 in)
1990	36.0 mm (1.4 in)
1991	31.0 mm (1.2 in)
1992	43.0 mm (1.7 in)
1993	39.0 mm (1.5 in)
1994	43.0 mm (1.7 in)
1995	81.5 mm (3.2 in)
1996	101.5 mm (4.0 in)
1997	62.5 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Swartkoppie, 1926 to 1997. The record is 205.0 mm (8.1 in) in 1988, marked on the chart; the median year is 79.8 mm (3.1 in).

Wettest five days (Rx5day) at Swartkoppie by year
Year	Wettest five days (Rx5day)
1926	61.2 mm (2.4 in)
1927	43.9 mm (1.7 in)
1928	54.4 mm (2.1 in)
1929	57.4 mm (2.3 in)
1930	51.5 mm (2.0 in)
1931	41.6 mm (1.6 in)
1932	52.2 mm (2.1 in)
1933	81.1 mm (3.2 in)
1934	91.2 mm (3.6 in)
1935	54.7 mm (2.2 in)
1936	112.3 mm (4.4 in)
1937	74.2 mm (2.9 in)
1938	61.2 mm (2.4 in)
1939	70.6 mm (2.8 in)
1940	155.1 mm (6.1 in)
1941	74.2 mm (2.9 in)
1942	86.6 mm (3.4 in)
1943	89.7 mm (3.5 in)
1944	127.5 mm (5.0 in)
1945	115.7 mm (4.6 in)
1946	95.8 mm (3.8 in)
1947	62.5 mm (2.5 in)
1948	140.3 mm (5.5 in)
1949	86.3 mm (3.4 in)
1950	126.4 mm (5.0 in)
1951	85.9 mm (3.4 in)
1952	64.5 mm (2.5 in)
1953	108.5 mm (4.3 in)
1954	85.8 mm (3.4 in)
1955	127.0 mm (5.0 in)
1956	104.6 mm (4.1 in)
1957	105.9 mm (4.2 in)
1958	139.5 mm (5.5 in)
1959	52.2 mm (2.1 in)
1960	67.0 mm (2.6 in)
1961	63.0 mm (2.5 in)
1962	65.5 mm (2.6 in)
1963	72.3 mm (2.8 in)
1964	84.0 mm (3.3 in)
1965	44.0 mm (1.7 in)
1966	63.2 mm (2.5 in)
1967	86.5 mm (3.4 in)
1968	79.0 mm (3.1 in)
1969	62.9 mm (2.5 in)
1970	78.5 mm (3.1 in)
1971	61.1 mm (2.4 in)
1972	88.8 mm (3.5 in)
1973	80.6 mm (3.2 in)
1974	89.6 mm (3.5 in)
1975	126.5 mm (5.0 in)
1976	128.3 mm (5.1 in)
1977	76.5 mm (3.0 in)
1978	65.5 mm (2.6 in)
1979	103.0 mm (4.1 in)
1980	60.5 mm (2.4 in)
1981	115.5 mm (4.5 in)
1982	89.5 mm (3.5 in)
1983	75.5 mm (3.0 in)
1984	72.0 mm (2.8 in)
1985	77.0 mm (3.0 in)
1986	107.5 mm (4.2 in)
1987	117.5 mm (4.6 in)
1988	205.0 mm (8.1 in)
1989	83.5 mm (3.3 in)
1990	61.7 mm (2.4 in)
1991	57.5 mm (2.3 in)
1992	74.5 mm (2.9 in)
1993	56.9 mm (2.2 in)
1994	63.0 mm (2.5 in)
1995	130.5 mm (5.1 in)
1996	101.5 mm (4.0 in)
1997	105.0 mm (4.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Swartkoppie, 1926 to 1997. The record is 147 days in 1941, marked on the chart; the median year is 73 days.

Longest dry spell (CDD) at Swartkoppie by year
Year	Longest dry spell (CDD)
1926	111 days
1927	73 days
1928	120 days
1929	34 days
1930	66 days
1931	68 days
1932	10 days
1933	71 days
1934	57 days
1935	77 days
1936	141 days
1937	128 days
1938	33 days
1939	55 days
1940	86 days
1941	147 days
1942	84 days
1943	38 days
1944	92 days
1945	83 days
1946	126 days
1947	74 days
1948	70 days
1949	33 days
1950	27 days
1951	43 days
1952	85 days
1953	111 days
1954	99 days
1955	74 days
1956	113 days
1957	76 days
1958	65 days
1959	56 days
1960	45 days
1961	52 days
1962	100 days
1963	80 days
1964	50 days
1965	62 days
1966	117 days
1967	87 days
1968	48 days
1969	40 days
1970	39 days
1971	73 days
1972	84 days
1973	67 days
1974	116 days
1975	51 days
1976	90 days
1977	118 days
1978	72 days
1979	38 days
1980	124 days
1981	78 days
1982	48 days
1983	48 days
1984	48 days
1985	93 days
1986	86 days
1987	84 days
1988	48 days
1989	53 days
1990	53 days
1991	87 days
1992	52 days
1993	86 days
1994	85 days
1995	101 days
1996	39 days
1997	33 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

67 years, 1927 to 1996

A day with at least 47.8 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 132.6 mm (5.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Swartkoppie: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	47.8 mm (1.9 in)
5 years	66.4 mm (2.6 in)
10 years	80.2 mm (3.2 in)
25 years	99.6 mm (3.9 in)
50 years	115.4 mm (4.5 in)
100 years	132.6 mm (5.2 in)	Longer than the 67 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, 67 years of values from 1927 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: 137.9 mm (5.4 in) in 1940; 106.0 mm (4.2 in) in 1988; 101.5 mm (4.0 in) in 1996.

Download the Data

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