Oorsprong-Oos Weather Records (SF004027880)

Record envelope, standing records and threshold days for Oorsprong-Oos (SF004027880), South Africa, with 78 years of record.

Key Facts for Oorsprong-Oos

Oorsprong-Oos (SF004027880) is a weather station in South Africa at -27.13 latitude and 27.95 longitude, 1,550 m (5,085 ft) above sea level.
The station reports from 1919 to 1996, 78 years of record.
0 records set at Oorsprong-Oos still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Oorsprong-Oos set a monthly record daily precipitation of 55.0 mm (2.2 in) on 17 April 1996.

About the Station

Location: South Africa, -27.13 latitude, 27.95 longitude.
Elevation: 1,550 m (5,085 ft).
Period of record: 1919 to 1996, 78 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 Oorsprong-Oos. 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 Oorsprong-Oos, 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 Oorsprong-Oos still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Oorsprong-Oos between 15 January 1985 and 24 January 1996. Each dot is a new record.

When Oorsprong-Oos set new all-time records
Date	Kind	Detail
1985-01-15	Record daily precipitation	Record daily precipitation 122.0 mm (4.8 in)
1995-12-16	Record daily precipitation	Record daily precipitation 125.0 mm (4.9 in)
1996-01-24	Record daily precipitation	Record daily precipitation 129.0 mm (5.1 in)

Wettest Day of Each Month

Jan: 129.0 mm (5.1 in)

The wettest day on record for each calendar month at Oorsprong-Oos. The most was 129.0 mm (5.1 in) on 24 January 1996.

Record daily precipitation for each month at Oorsprong-Oos
Month	Record daily precipitation (mm)	Date
Jan	129.0 mm (5.1 in)	24 January 1996
Feb	96.5 mm (3.8 in)	15 February 1991
Mar	80.0 mm (3.1 in)	11 March 1988
Apr	55.0 mm (2.2 in)	17 April 1996
May	104.6 mm (4.1 in)	15 May 1929
Jun	28.0 mm (1.1 in)	7 June 1988
Jul	53.1 mm (2.1 in)	3 July 1943
Aug	50.0 mm (2.0 in)	28 August 1986
Sep	82.0 mm (3.2 in)	27 September 1987
Oct	68.0 mm (2.7 in)	10 October 1982
Nov	79.5 mm (3.1 in)	18 November 1934
Dec	125.0 mm (4.9 in)	16 December 1995

Latest Records

Latest records at Oorsprong-Oos
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 1996	Oorsprong-Oos, ZA	monthly rain	55.0 mm (2.2 in)	1.0 mm (0.04 in)	33 years	28 of 100 (Routine)
16 April 1996	Oorsprong-Oos, ZA	daily rain	20.0 mm (0.8 in)	5.5 mm (0.22 in)	53 years	20 of 100 (Routine)
31 March 1996	Oorsprong-Oos, ZA	daily rain	22.0 mm (0.9 in)	3.5 mm (0.14 in)	35 years	20 of 100 (Routine)
2 March 1996	Oorsprong-Oos, ZA	daily rain	50.0 mm (2.0 in)	8.1 mm (0.32 in)	65 years	33 of 100 (Routine)
11 February 1996	Oorsprong-Oos, ZA	daily rain	73.0 mm (2.9 in)	30.0 mm (1.2 in)	17 years	37 of 100 (Notable)
27 January 1996	Oorsprong-Oos, ZA	daily rain	54.0 mm (2.1 in)	12.5 mm (0.5 in)	20 years	22 of 100 (Routine)
24 January 1996	Oorsprong-Oos, ZA	all-time rain	129.0 mm (5.1 in)	4.0 mm (0.16 in)	0 years	30 of 100 (Routine)
23 December 1995	Oorsprong-Oos, ZA	daily rain	32.5 mm (1.3 in)	6.0 mm (0.24 in)	8 years	14 of 100 (Routine)
17 December 1995	Oorsprong-Oos, ZA	daily rain	35.0 mm (1.4 in)	7.0 mm (0.28 in)	8 years	15 of 100 (Routine)
16 December 1995	Oorsprong-Oos, ZA	all-time rain	125.0 mm (4.9 in)	3.0 mm (0.12 in)	10 years	32 of 100 (Routine)
9 December 1995	Oorsprong-Oos, ZA	daily rain	18.0 mm (0.7 in)	1.0 mm (0.04 in)	60 years	20 of 100 (Routine)
29 October 1995	Oorsprong-Oos, ZA	daily rain	67.0 mm (2.6 in)	30.5 mm (1.2 in)	9 years	39 of 100 (Notable)
16 October 1995	Oorsprong-Oos, ZA	daily rain	29.0 mm (1.1 in)	7.8 mm (0.31 in)	40 years	26 of 100 (Routine)
20 April 1994	Oorsprong-Oos, ZA	daily rain	18.0 mm (0.7 in)	2.0 mm (0.08 in)	15 years	13 of 100 (Routine)
29 December 1993	Oorsprong-Oos, ZA	daily rain (Tie)	25.0 mm (1.0 in)	tie	4 years	2 of 100 (Routine)
5 October 1993	Oorsprong-Oos, ZA	daily rain	29.0 mm (1.1 in)	8.7 mm (0.34 in)	71 years	36 of 100 (Notable)
28 March 1993	Oorsprong-Oos, ZA	daily rain	27.0 mm (1.1 in)	6.9 mm (0.27 in)	56 years	30 of 100 (Routine)
19 November 1992	Oorsprong-Oos, ZA	daily rain	33.0 mm (1.3 in)	6.8 mm (0.27 in)	71 years	34 of 100 (Routine)
12 November 1992	Oorsprong-Oos, ZA	daily rain	26.0 mm (1.0 in)	4.7 mm (0.19 in)	60 years	29 of 100 (Routine)
7 October 1992	Oorsprong-Oos, ZA	daily rain	18.0 mm (0.7 in)	3.0 mm (0.12 in)	9 years	11 of 100 (Routine)

Extremes by Year

1919 to 1996

Yearly extremes at Oorsprong-Oos: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	129.0 mm (5.1 in)	1996	48.0 mm (1.9 in)	78
Wettest five days (Rx5day)	197.0 mm (7.8 in)	1995	77.4 mm (3.0 in)	78
Longest dry spell (CDD)	208 days	1966	86 days	78

Wettest day (Rx1day)

The wettest day of the year at Oorsprong-Oos, 1919 to 1996. The record is 129.0 mm (5.1 in) in 1996, marked on the chart; the median year is 48.0 mm (1.9 in).

Wettest day (Rx1day) at Oorsprong-Oos by year
Year	Wettest day (Rx1day)
1919	27.2 mm (1.1 in)
1920	32.8 mm (1.3 in)
1921	110.5 mm (4.4 in)
1922	56.4 mm (2.2 in)
1923	38.1 mm (1.5 in)
1924	59.4 mm (2.3 in)
1925	36.8 mm (1.4 in)
1926	46.0 mm (1.8 in)
1927	33.5 mm (1.3 in)
1928	59.2 mm (2.3 in)
1929	104.6 mm (4.1 in)
1930	38.1 mm (1.5 in)
1931	47.8 mm (1.9 in)
1932	39.6 mm (1.6 in)
1933	78.7 mm (3.1 in)
1934	79.5 mm (3.1 in)
1935	44.2 mm (1.7 in)
1936	43.2 mm (1.7 in)
1937	43.2 mm (1.7 in)
1938	76.7 mm (3.0 in)
1939	59.2 mm (2.3 in)
1940	52.8 mm (2.1 in)
1941	50.8 mm (2.0 in)
1942	38.4 mm (1.5 in)
1943	53.1 mm (2.1 in)
1944	47.8 mm (1.9 in)
1945	66.0 mm (2.6 in)
1946	41.9 mm (1.6 in)
1947	55.9 mm (2.2 in)
1948	64.0 mm (2.5 in)
1949	68.6 mm (2.7 in)
1950	50.8 mm (2.0 in)
1951	43.2 mm (1.7 in)
1952	52.8 mm (2.1 in)
1953	47.2 mm (1.9 in)
1954	30.5 mm (1.2 in)
1955	42.0 mm (1.7 in)
1956	33.5 mm (1.3 in)
1957	44.5 mm (1.8 in)
1958	47.7 mm (1.9 in)
1959	33.0 mm (1.3 in)
1960	41.0 mm (1.6 in)
1961	34.5 mm (1.4 in)
1962	67.5 mm (2.7 in)
1963	38.0 mm (1.5 in)
1964	75.0 mm (3.0 in)
1965	41.5 mm (1.6 in)
1966	35.5 mm (1.4 in)
1967	48.0 mm (1.9 in)
1968	32.0 mm (1.3 in)
1969	40.5 mm (1.6 in)
1970	75.0 mm (3.0 in)
1971	53.5 mm (2.1 in)
1972	80.0 mm (3.1 in)
1973	36.5 mm (1.4 in)
1974	57.0 mm (2.2 in)
1975	43.0 mm (1.7 in)
1976	46.0 mm (1.8 in)
1977	57.5 mm (2.3 in)
1978	46.0 mm (1.8 in)
1979	67.0 mm (2.6 in)
1980	36.0 mm (1.4 in)
1981	56.5 mm (2.2 in)
1982	68.0 mm (2.7 in)
1983	52.0 mm (2.0 in)
1984	40.0 mm (1.6 in)
1985	122.0 mm (4.8 in)
1986	50.0 mm (2.0 in)
1987	82.0 mm (3.2 in)
1988	80.0 mm (3.1 in)
1989	83.0 mm (3.3 in)
1990	60.0 mm (2.4 in)
1991	96.5 mm (3.8 in)
1992	48.0 mm (1.9 in)
1993	40.0 mm (1.6 in)
1994	25.0 mm (1.0 in)
1995	125.0 mm (4.9 in)
1996	129.0 mm (5.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Oorsprong-Oos, 1919 to 1996. The record is 197.0 mm (7.8 in) in 1995, marked on the chart; the median year is 77.4 mm (3.0 in).

Wettest five days (Rx5day) at Oorsprong-Oos by year
Year	Wettest five days (Rx5day)
1919	37.0 mm (1.5 in)
1920	64.1 mm (2.5 in)
1921	131.0 mm (5.2 in)
1922	63.0 mm (2.5 in)
1923	47.0 mm (1.9 in)
1924	77.2 mm (3.0 in)
1925	54.0 mm (2.1 in)
1926	69.9 mm (2.8 in)
1927	76.5 mm (3.0 in)
1928	94.0 mm (3.7 in)
1929	104.6 mm (4.1 in)
1930	68.0 mm (2.7 in)
1931	65.0 mm (2.6 in)
1932	54.9 mm (2.2 in)
1933	83.8 mm (3.3 in)
1934	118.6 mm (4.7 in)
1935	51.1 mm (2.0 in)
1936	113.6 mm (4.5 in)
1937	75.5 mm (3.0 in)
1938	111.0 mm (4.4 in)
1939	80.8 mm (3.2 in)
1940	80.9 mm (3.2 in)
1941	75.2 mm (3.0 in)
1942	67.0 mm (2.6 in)
1943	100.4 mm (4.0 in)
1944	125.0 mm (4.9 in)
1945	98.5 mm (3.9 in)
1946	64.8 mm (2.6 in)
1947	74.7 mm (2.9 in)
1948	119.9 mm (4.7 in)
1949	104.1 mm (4.1 in)
1950	69.8 mm (2.7 in)
1951	88.4 mm (3.5 in)
1952	103.6 mm (4.1 in)
1953	83.3 mm (3.3 in)
1954	57.8 mm (2.3 in)
1955	78.3 mm (3.1 in)
1956	48.0 mm (1.9 in)
1957	71.0 mm (2.8 in)
1958	96.2 mm (3.8 in)
1959	41.0 mm (1.6 in)
1960	72.5 mm (2.9 in)
1961	60.0 mm (2.4 in)
1962	96.5 mm (3.8 in)
1963	54.0 mm (2.1 in)
1964	92.0 mm (3.6 in)
1965	59.2 mm (2.3 in)
1966	77.0 mm (3.0 in)
1967	70.5 mm (2.8 in)
1968	76.5 mm (3.0 in)
1969	77.5 mm (3.1 in)
1970	89.5 mm (3.5 in)
1971	78.0 mm (3.1 in)
1972	137.0 mm (5.4 in)
1973	75.5 mm (3.0 in)
1974	125.0 mm (4.9 in)
1975	62.5 mm (2.5 in)
1976	72.0 mm (2.8 in)
1977	95.5 mm (3.8 in)
1978	100.0 mm (3.9 in)
1979	73.0 mm (2.9 in)
1980	56.5 mm (2.2 in)
1981	105.5 mm (4.2 in)
1982	124.0 mm (4.9 in)
1983	73.0 mm (2.9 in)
1984	76.0 mm (3.0 in)
1985	152.0 mm (6.0 in)
1986	71.5 mm (2.8 in)
1987	126.0 mm (5.0 in)
1988	110.0 mm (4.3 in)
1989	89.0 mm (3.5 in)
1990	79.0 mm (3.1 in)
1991	149.5 mm (5.9 in)
1992	90.5 mm (3.6 in)
1993	70.0 mm (2.8 in)
1994	60.0 mm (2.4 in)
1995	197.0 mm (7.8 in)
1996	197.0 mm (7.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Oorsprong-Oos, 1919 to 1996. The record is 208 days in 1966, marked on the chart; the median year is 86 days.

Longest dry spell (CDD) at Oorsprong-Oos by year
Year	Longest dry spell (CDD)
1919	67 days
1920	98 days
1921	92 days
1922	70 days
1923	67 days
1924	52 days
1925	68 days
1926	114 days
1927	112 days
1928	98 days
1929	24 days
1930	51 days
1931	81 days
1932	103 days
1933	71 days
1934	28 days
1935	80 days
1936	109 days
1937	80 days
1938	30 days
1939	41 days
1940	87 days
1941	85 days
1942	66 days
1943	25 days
1944	85 days
1945	146 days
1946	128 days
1947	83 days
1948	69 days
1949	42 days
1950	52 days
1951	105 days
1952	83 days
1953	143 days
1954	99 days
1955	141 days
1956	108 days
1957	71 days
1958	136 days
1959	97 days
1960	86 days
1961	105 days
1962	121 days
1963	92 days
1964	43 days
1965	75 days
1966	208 days
1967	91 days
1968	101 days
1969	68 days
1970	73 days
1971	73 days
1972	84 days
1973	112 days
1974	155 days
1975	109 days
1976	145 days
1977	167 days
1978	124 days
1979	39 days
1980	112 days
1981	78 days
1982	63 days
1983	82 days
1984	66 days
1985	147 days
1986	86 days
1987	123 days
1988	65 days
1989	70 days
1990	79 days
1991	97 days
1992	99 days
1993	138 days
1994	181 days
1995	129 days
1996	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

75 years, 1920 to 1995

A day with at least 49.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 136.9 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Oorsprong-Oos: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	49.8 mm (2.0 in)
5 years	67.4 mm (2.7 in)
10 years	81.1 mm (3.2 in)
25 years	101.1 mm (4.0 in)
50 years	118.0 mm (4.6 in)
100 years	136.9 mm (5.4 in)	Longer than the 75 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, 75 years of values from 1920 to 1995.

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 1995; 122.0 mm (4.8 in) in 1985; 110.5 mm (4.4 in) in 1921.

Download the Data

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