Sterkstroom Weather Records (SF001638820)

Record envelope, standing records and threshold days for Sterkstroom (SF001638820), South Africa, with 64 years of record.

Key Facts for Sterkstroom

Sterkstroom (SF001638820) is a weather station in South Africa at -30.70 latitude and 21.00 longitude, 1,000 m (3,281 ft) above sea level.
The station reports from 1933 to 1996, 64 years of record.
0 records set at Sterkstroom still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Sterkstroom set a daily record precipitation of 9.0 mm (0.35 in) on 25 July 1996.

About the Station

Location: South Africa, -30.70 latitude, 21.00 longitude.
Elevation: 1,000 m (3,281 ft).
Period of record: 1933 to 1996, 64 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 Sterkstroom. 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 Sterkstroom, 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 Sterkstroom still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Sterkstroom between 21 February 1974 and 21 February 1974. Each dot is a new record.

Wettest Day of Each Month

Feb: 89.0 mm (3.5 in)

The wettest day on record for each calendar month at Sterkstroom. The most was 89.0 mm (3.5 in) on 21 February 1974.

Record daily precipitation for each month at Sterkstroom
Month	Record daily precipitation (mm)	Date
Jan	53.3 mm (2.1 in)	5 January 1941
Feb	89.0 mm (3.5 in)	21 February 1974
Mar	66.5 mm (2.6 in)	6 March 1994
Apr	45.5 mm (1.8 in)	21 April 1990
May	34.4 mm (1.4 in)	28 May 1958
Jun	37.0 mm (1.5 in)	24 June 1957
Jul	66.3 mm (2.6 in)	13 July 1952
Aug	44.5 mm (1.8 in)	16 August 1943
Sep	38.5 mm (1.5 in)	12 September 1957
Oct	50.5 mm (2.0 in)	31 October 1956
Nov	56.6 mm (2.2 in)	17 November 1936
Dec	83.0 mm (3.3 in)	19 December 1985

Latest Records

Latest records at Sterkstroom
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 July 1996	Sterkstroom, ZA	daily rain	9.0 mm (0.35 in)	4.5 mm (0.18 in)	14 years	14 of 100 (Routine)
24 July 1996	Sterkstroom, ZA	daily rain	41.0 mm (1.6 in)	35.0 mm (1.4 in)	2 years	42 of 100 (Notable)
23 July 1996	Sterkstroom, ZA	daily rain	39.0 mm (1.5 in)	39.0 mm (1.5 in)	63 years	64 of 100 (Major)
31 May 1996	Sterkstroom, ZA	daily rain	10.5 mm (0.4 in)	7.5 mm (0.30 in)	39 years	20 of 100 (Routine)
3 April 1996	Sterkstroom, ZA	daily rain	32.5 mm (1.3 in)	10.9 mm (0.4 in)	50 years	34 of 100 (Routine)
1 March 1996	Sterkstroom, ZA	daily rain	15.5 mm (0.6 in)	11.5 mm (0.5 in)	13 years	19 of 100 (Routine)
13 December 1995	Sterkstroom, ZA	daily rain	29.0 mm (1.1 in)	25.3 mm (1.0 in)	36 years	37 of 100 (Notable)
12 December 1995	Sterkstroom, ZA	daily rain	43.0 mm (1.7 in)	43.0 mm (1.7 in)	61 years	58 of 100 (Notable)
9 December 1995	Sterkstroom, ZA	daily rain	3.5 mm (0.14 in)	1.0 mm (0.04 in)	37 years	17 of 100 (Routine)
19 November 1995	Sterkstroom, ZA	daily rain	9.0 mm (0.35 in)	4.8 mm (0.19 in)	12 years	13 of 100 (Routine)
1 October 1995	Sterkstroom, ZA	daily rain	4.5 mm (0.18 in)	4.5 mm (0.18 in)	61 years	20 of 100 (Routine)
6 August 1995	Sterkstroom, ZA	daily rain	3.0 mm (0.12 in)	3.0 mm (0.12 in)	61 years	20 of 100 (Routine)
20 May 1995	Sterkstroom, ZA	daily rain	12.0 mm (0.5 in)	4.5 mm (0.18 in)	4 years	14 of 100 (Routine)
21 January 1995	Sterkstroom, ZA	daily rain	12.0 mm (0.5 in)	8.0 mm (0.31 in)	16 years	18 of 100 (Routine)
24 July 1994	Sterkstroom, ZA	daily rain	6.0 mm (0.24 in)	4.0 mm (0.16 in)	32 years	19 of 100 (Routine)
28 June 1994	Sterkstroom, ZA	daily rain	1.5 mm (0.06 in)	0.5 mm (0.02 in)	4 years	7 of 100 (Routine)
20 March 1994	Sterkstroom, ZA	daily rain	45.0 mm (1.8 in)	6.9 mm (0.27 in)	32 years	21 of 100 (Routine)
6 March 1994	Sterkstroom, ZA	monthly rain	66.5 mm (2.6 in)	9.0 mm (0.35 in)	26 years	32 of 100 (Routine)
13 February 1994	Sterkstroom, ZA	daily rain	13.5 mm (0.5 in)	2.3 mm (0.09 in)	52 years	20 of 100 (Routine)
24 December 1993	Sterkstroom, ZA	daily rain	12.0 mm (0.5 in)	9.0 mm (0.35 in)	23 years	19 of 100 (Routine)

Extremes by Year

1933 to 1996

Yearly extremes at Sterkstroom: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	89.0 mm (3.5 in)	1974	33.0 mm (1.3 in)	64
Wettest five days (Rx5day)	123.8 mm (4.9 in)	1985	40.5 mm (1.6 in)	64
Longest dry spell (CDD)	206 days	1951	83 days	64

Wettest day (Rx1day)

The wettest day of the year at Sterkstroom, 1933 to 1996. The record is 89.0 mm (3.5 in) in 1974, marked on the chart; the median year is 33.0 mm (1.3 in).

Wettest day (Rx1day) at Sterkstroom by year
Year	Wettest day (Rx1day)
1933	33.8 mm (1.3 in)
1934	33.0 mm (1.3 in)
1935	33.5 mm (1.3 in)
1936	56.6 mm (2.2 in)
1937	17.0 mm (0.7 in)
1938	15.2 mm (0.6 in)
1939	48.5 mm (1.9 in)
1940	26.2 mm (1.0 in)
1941	53.3 mm (2.1 in)
1942	31.0 mm (1.2 in)
1943	44.5 mm (1.8 in)
1944	34.0 mm (1.3 in)
1945	19.1 mm (0.8 in)
1946	33.0 mm (1.3 in)
1947	25.4 mm (1.0 in)
1948	22.9 mm (0.9 in)
1949	31.0 mm (1.2 in)
1950	25.7 mm (1.0 in)
1951	14.0 mm (0.6 in)
1952	66.3 mm (2.6 in)
1953	45.7 mm (1.8 in)
1954	40.0 mm (1.6 in)
1955	40.0 mm (1.6 in)
1956	50.5 mm (2.0 in)
1957	38.5 mm (1.5 in)
1958	34.4 mm (1.4 in)
1959	29.0 mm (1.1 in)
1960	16.0 mm (0.6 in)
1961	47.5 mm (1.9 in)
1962	15.0 mm (0.6 in)
1963	30.0 mm (1.2 in)
1964	23.0 mm (0.9 in)
1965	40.5 mm (1.6 in)
1966	12.7 mm (0.5 in)
1967	57.5 mm (2.3 in)
1968	35.0 mm (1.4 in)
1969	43.0 mm (1.7 in)
1970	20.0 mm (0.8 in)
1971	35.0 mm (1.4 in)
1972	42.9 mm (1.7 in)
1973	32.0 mm (1.3 in)
1974	89.0 mm (3.5 in)
1975	45.5 mm (1.8 in)
1976	69.0 mm (2.7 in)
1977	32.0 mm (1.3 in)
1978	24.0 mm (0.9 in)
1979	23.0 mm (0.9 in)
1980	20.5 mm (0.8 in)
1981	28.5 mm (1.1 in)
1982	33.0 mm (1.3 in)
1983	22.5 mm (0.9 in)
1984	18.0 mm (0.7 in)
1985	83.0 mm (3.3 in)
1986	25.5 mm (1.0 in)
1987	13.0 mm (0.5 in)
1988	22.5 mm (0.9 in)
1989	35.0 mm (1.4 in)
1990	45.5 mm (1.8 in)
1991	24.5 mm (1.0 in)
1992	20.0 mm (0.8 in)
1993	23.5 mm (0.9 in)
1994	66.5 mm (2.6 in)
1995	43.0 mm (1.7 in)
1996	41.0 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sterkstroom, 1933 to 1996. The record is 123.8 mm (4.9 in) in 1985, marked on the chart; the median year is 40.5 mm (1.6 in).

Wettest five days (Rx5day) at Sterkstroom by year
Year	Wettest five days (Rx5day)
1933	38.9 mm (1.5 in)
1934	39.4 mm (1.6 in)
1935	57.6 mm (2.3 in)
1936	76.7 mm (3.0 in)
1937	23.6 mm (0.9 in)
1938	26.1 mm (1.0 in)
1939	49.3 mm (1.9 in)
1940	26.2 mm (1.0 in)
1941	60.4 mm (2.4 in)
1942	42.2 mm (1.7 in)
1943	50.3 mm (2.0 in)
1944	52.5 mm (2.1 in)
1945	26.8 mm (1.1 in)
1946	62.0 mm (2.4 in)
1947	38.4 mm (1.5 in)
1948	34.8 mm (1.4 in)
1949	31.5 mm (1.2 in)
1950	31.8 mm (1.3 in)
1951	20.9 mm (0.8 in)
1952	71.1 mm (2.8 in)
1953	45.7 mm (1.8 in)
1954	71.8 mm (2.8 in)
1955	51.6 mm (2.0 in)
1956	50.5 mm (2.0 in)
1957	38.5 mm (1.5 in)
1958	58.4 mm (2.3 in)
1959	29.0 mm (1.1 in)
1960	16.0 mm (0.6 in)
1961	65.0 mm (2.6 in)
1962	15.7 mm (0.6 in)
1963	38.4 mm (1.5 in)
1964	23.0 mm (0.9 in)
1965	71.5 mm (2.8 in)
1966	27.2 mm (1.1 in)
1967	65.5 mm (2.6 in)
1968	35.0 mm (1.4 in)
1969	70.6 mm (2.8 in)
1970	41.0 mm (1.6 in)
1971	45.4 mm (1.8 in)
1972	82.9 mm (3.3 in)
1973	50.9 mm (2.0 in)
1974	92.0 mm (3.6 in)
1975	50.0 mm (2.0 in)
1976	96.6 mm (3.8 in)
1977	51.0 mm (2.0 in)
1978	34.5 mm (1.4 in)
1979	32.0 mm (1.3 in)
1980	27.5 mm (1.1 in)
1981	46.5 mm (1.8 in)
1982	33.0 mm (1.3 in)
1983	22.5 mm (0.9 in)
1984	18.0 mm (0.7 in)
1985	123.8 mm (4.9 in)
1986	39.5 mm (1.6 in)
1987	13.0 mm (0.5 in)
1988	40.0 mm (1.6 in)
1989	39.0 mm (1.5 in)
1990	79.0 mm (3.1 in)
1991	39.5 mm (1.6 in)
1992	20.0 mm (0.8 in)
1993	30.0 mm (1.2 in)
1994	74.5 mm (2.9 in)
1995	75.5 mm (3.0 in)
1996	89.0 mm (3.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sterkstroom, 1933 to 1996. The record is 206 days in 1951, marked on the chart; the median year is 83 days.

Longest dry spell (CDD) at Sterkstroom by year
Year	Longest dry spell (CDD)
1933	140 days
1934	133 days
1935	112 days
1936	65 days
1937	139 days
1938	80 days
1939	70 days
1940	57 days
1941	66 days
1942	53 days
1943	95 days
1944	77 days
1945	145 days
1946	107 days
1947	119 days
1948	95 days
1949	71 days
1950	96 days
1951	206 days
1952	79 days
1953	61 days
1954	120 days
1955	83 days
1956	172 days
1957	61 days
1958	195 days
1959	52 days
1960	98 days
1961	81 days
1962	106 days
1963	32 days
1964	89 days
1965	91 days
1966	131 days
1967	73 days
1968	135 days
1969	104 days
1970	74 days
1971	79 days
1972	120 days
1973	72 days
1974	70 days
1975	93 days
1976	78 days
1977	69 days
1978	195 days
1979	134 days
1980	64 days
1981	102 days
1982	80 days
1983	77 days
1984	96 days
1985	108 days
1986	64 days
1987	67 days
1988	82 days
1989	59 days
1990	141 days
1991	62 days
1992	94 days
1993	39 days
1994	101 days
1995	61 days
1996	57 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

63 years, 1933 to 1995

A day with at least 31.6 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 92.0 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Sterkstroom: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	31.6 mm (1.2 in)
5 years	46.0 mm (1.8 in)
10 years	56.2 mm (2.2 in)
25 years	69.9 mm (2.8 in)
50 years	80.7 mm (3.2 in)
100 years	92.0 mm (3.6 in)	Longer than the 63 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, 63 years of values from 1933 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: 89.0 mm (3.5 in) in 1974; 83.0 mm (3.3 in) in 1985; 69.0 mm (2.7 in) in 1976.

Download the Data

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