Rocklands Weather Records (SF000998110)

Record envelope, standing records and threshold days for Rocklands (SF000998110), South Africa, with 85 years of record.

Key Facts for Rocklands

Rocklands (SF000998110) is a weather station in South Africa at -32.03 latitude and 26.47 longitude, 1,250 m (4,101 ft) above sea level.
The station reports from 1893 to 1977, 85 years of record.
0 records set at Rocklands still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Rocklands set a daily record precipitation of 21.2 mm (0.8 in) on 21 October 1977.

About the Station

Location: South Africa, -32.03 latitude, 26.47 longitude.
Elevation: 1,250 m (4,101 ft).
Period of record: 1893 to 1977, 85 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 Rocklands. 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 Rocklands, 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 Rocklands still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Rocklands between 5 March 1930 and 5 March 1930. Each dot is a new record.

Wettest Day of Each Month

Mar: 116.8 mm (4.6 in)

The wettest day on record for each calendar month at Rocklands. The most was 116.8 mm (4.6 in) on 5 March 1930.

Record daily precipitation for each month at Rocklands
Month	Record daily precipitation (mm)	Date
Jan	70.9 mm (2.8 in)	5 January 1950
Feb	54.6 mm (2.1 in)	11 February 1902
Mar	116.8 mm (4.6 in)	5 March 1930
Apr	53.3 mm (2.1 in)	16 April 1920
May	45.7 mm (1.8 in)	12 May 1943
Jun	43.3 mm (1.7 in)	17 June 1964
Jul	41.5 mm (1.6 in)	9 July 1976
Aug	42.0 mm (1.7 in)	17 August 1974
Sep	54.6 mm (2.1 in)	9 September 1901
Oct	49.3 mm (1.9 in)	2 October 1917
Nov	54.6 mm (2.1 in)	1 November 1956
Dec	64.0 mm (2.5 in)	5 December 1975

Latest Records

Latest records at Rocklands
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1977	Rocklands, ZA	daily rain	21.2 mm (0.8 in)	2.5 mm (0.10 in)	19 years	16 of 100 (Routine)
29 July 1977	Rocklands, ZA	daily rain	17.5 mm (0.7 in)	14.5 mm (0.6 in)	16 years	20 of 100 (Routine)
7 May 1977	Rocklands, ZA	daily rain	35.5 mm (1.4 in)	26.1 mm (1.0 in)	52 years	62 of 100 (Major)
22 March 1977	Rocklands, ZA	daily rain	34.0 mm (1.3 in)	7.8 mm (0.31 in)	70 years	36 of 100 (Notable)
28 January 1977	Rocklands, ZA	daily rain	25.3 mm (1.0 in)	2.4 mm (0.09 in)	70 years	31 of 100 (Routine)
12 October 1976	Rocklands, ZA	daily rain	15.5 mm (0.6 in)	0.8 mm (0.03 in)	40 years	20 of 100 (Routine)
4 October 1976	Rocklands, ZA	daily rain	29.0 mm (1.1 in)	1.1 mm (0.04 in)	55 years	25 of 100 (Routine)
26 September 1976	Rocklands, ZA	daily rain	12.5 mm (0.5 in)	2.9 mm (0.11 in)	21 years	17 of 100 (Routine)
18 July 1976	Rocklands, ZA	daily rain	4.5 mm (0.18 in)	1.7 mm (0.07 in)	24 years	17 of 100 (Routine)
9 July 1976	Rocklands, ZA	monthly rain	41.5 mm (1.6 in)	0.6 mm (0.02 in)	45 years	31 of 100 (Routine)
29 April 1976	Rocklands, ZA	daily rain	18.0 mm (0.7 in)	0.7 mm (0.03 in)	35 years	18 of 100 (Routine)
15 April 1976	Rocklands, ZA	daily rain	19.5 mm (0.8 in)	3.2 mm (0.13 in)	19 years	17 of 100 (Routine)
22 December 1975	Rocklands, ZA	daily rain	41.5 mm (1.6 in)	30.1 mm (1.2 in)	41 years	51 of 100 (Notable)
5 December 1975	Rocklands, ZA	monthly rain	64.0 mm (2.5 in)	12.0 mm (0.5 in)	16 years	35 of 100 (Notable)
26 November 1975	Rocklands, ZA	daily rain	31.5 mm (1.2 in)	8.6 mm (0.34 in)	38 years	29 of 100 (Routine)
31 August 1975	Rocklands, ZA	daily rain	15.0 mm (0.6 in)	4.1 mm (0.16 in)	56 years	20 of 100 (Routine)
28 June 1975	Rocklands, ZA	daily rain	12.0 mm (0.5 in)	6.0 mm (0.24 in)	13 years	20 of 100 (Routine)
22 August 1974	Rocklands, ZA	daily rain	16.3 mm (0.6 in)	13.3 mm (0.5 in)	35 years	20 of 100 (Routine)
18 August 1974	Rocklands, ZA	daily rain	18.5 mm (0.7 in)	9.0 mm (0.35 in)	9 years	20 of 100 (Routine)
17 August 1974	Rocklands, ZA	monthly rain	42.0 mm (1.7 in)	0.5 mm (0.02 in)	3 years	19 of 100 (Routine)

Extremes by Year

1893 to 1977

Yearly extremes at Rocklands: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	116.8 mm (4.6 in)	1930	40.9 mm (1.6 in)	85
Wettest five days (Rx5day)	142.4 mm (5.6 in)	1930	63.0 mm (2.5 in)	85
Longest dry spell (CDD)	133 days	1949	51 days	85

Wettest day (Rx1day)

The wettest day of the year at Rocklands, 1893 to 1977. The record is 116.8 mm (4.6 in) in 1930, marked on the chart; the median year is 40.9 mm (1.6 in).

Wettest day (Rx1day) at Rocklands by year
Year	Wettest day (Rx1day)
1893	50.8 mm (2.0 in)
1894	50.8 mm (2.0 in)
1895	40.9 mm (1.6 in)
1896	38.1 mm (1.5 in)
1897	29.2 mm (1.1 in)
1898	39.4 mm (1.6 in)
1899	35.6 mm (1.4 in)
1900	39.6 mm (1.6 in)
1901	54.6 mm (2.1 in)
1902	54.6 mm (2.1 in)
1903	46.2 mm (1.8 in)
1904	38.1 mm (1.5 in)
1905	42.9 mm (1.7 in)
1906	26.4 mm (1.0 in)
1907	41.4 mm (1.6 in)
1908	23.9 mm (0.9 in)
1909	43.2 mm (1.7 in)
1910	31.2 mm (1.2 in)
1911	65.3 mm (2.6 in)
1912	36.3 mm (1.4 in)
1913	35.6 mm (1.4 in)
1914	41.7 mm (1.6 in)
1915	27.9 mm (1.1 in)
1916	29.0 mm (1.1 in)
1917	49.3 mm (1.9 in)
1918	50.8 mm (2.0 in)
1919	25.4 mm (1.0 in)
1920	53.3 mm (2.1 in)
1921	28.2 mm (1.1 in)
1922	45.7 mm (1.8 in)
1923	42.7 mm (1.7 in)
1924	23.4 mm (0.9 in)
1925	47.8 mm (1.9 in)
1926	35.1 mm (1.4 in)
1927	46.5 mm (1.8 in)
1928	30.5 mm (1.2 in)
1929	53.1 mm (2.1 in)
1930	116.8 mm (4.6 in)
1931	40.9 mm (1.6 in)
1932	36.8 mm (1.4 in)
1933	40.6 mm (1.6 in)
1934	52.1 mm (2.1 in)
1935	43.2 mm (1.7 in)
1936	49.5 mm (1.9 in)
1937	43.2 mm (1.7 in)
1938	21.3 mm (0.8 in)
1939	39.9 mm (1.6 in)
1940	48.5 mm (1.9 in)
1941	34.8 mm (1.4 in)
1942	34.3 mm (1.4 in)
1943	45.7 mm (1.8 in)
1944	59.9 mm (2.4 in)
1945	45.2 mm (1.8 in)
1946	36.8 mm (1.4 in)
1947	27.7 mm (1.1 in)
1948	39.6 mm (1.6 in)
1949	42.4 mm (1.7 in)
1950	70.9 mm (2.8 in)
1951	45.5 mm (1.8 in)
1952	27.9 mm (1.1 in)
1953	37.8 mm (1.5 in)
1954	40.7 mm (1.6 in)
1955	25.0 mm (1.0 in)
1956	54.6 mm (2.1 in)
1957	25.0 mm (1.0 in)
1958	52.0 mm (2.0 in)
1959	49.0 mm (1.9 in)
1960	33.0 mm (1.3 in)
1961	34.5 mm (1.4 in)
1962	43.0 mm (1.7 in)
1963	46.5 mm (1.8 in)
1964	43.3 mm (1.7 in)
1965	30.0 mm (1.2 in)
1966	36.0 mm (1.4 in)
1967	32.0 mm (1.3 in)
1968	32.8 mm (1.3 in)
1969	32.5 mm (1.3 in)
1970	41.5 mm (1.6 in)
1971	27.3 mm (1.1 in)
1972	48.5 mm (1.9 in)
1973	38.0 mm (1.5 in)
1974	68.0 mm (2.7 in)
1975	64.0 mm (2.5 in)
1976	41.5 mm (1.6 in)
1977	35.5 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Rocklands, 1893 to 1977. The record is 142.4 mm (5.6 in) in 1930, marked on the chart; the median year is 63.0 mm (2.5 in).

Wettest five days (Rx5day) at Rocklands by year
Year	Wettest five days (Rx5day)
1893	61.7 mm (2.4 in)
1894	73.9 mm (2.9 in)
1895	69.6 mm (2.7 in)
1896	70.6 mm (2.8 in)
1897	53.1 mm (2.1 in)
1898	65.3 mm (2.6 in)
1899	65.3 mm (2.6 in)
1900	73.2 mm (2.9 in)
1901	55.4 mm (2.2 in)
1902	64.8 mm (2.6 in)
1903	51.8 mm (2.0 in)
1904	60.9 mm (2.4 in)
1905	57.7 mm (2.3 in)
1906	48.9 mm (1.9 in)
1907	68.9 mm (2.7 in)
1908	28.7 mm (1.1 in)
1909	69.9 mm (2.8 in)
1910	57.3 mm (2.3 in)
1911	83.8 mm (3.3 in)
1912	45.8 mm (1.8 in)
1913	71.7 mm (2.8 in)
1914	69.8 mm (2.7 in)
1915	35.5 mm (1.4 in)
1916	42.1 mm (1.7 in)
1917	59.8 mm (2.4 in)
1918	99.8 mm (3.9 in)
1919	42.7 mm (1.7 in)
1920	82.1 mm (3.2 in)
1921	58.5 mm (2.3 in)
1922	78.0 mm (3.1 in)
1923	62.7 mm (2.5 in)
1924	30.6 mm (1.2 in)
1925	76.9 mm (3.0 in)
1926	49.8 mm (2.0 in)
1927	47.2 mm (1.9 in)
1928	54.4 mm (2.1 in)
1929	75.5 mm (3.0 in)
1930	142.4 mm (5.6 in)
1931	89.9 mm (3.5 in)
1932	101.6 mm (4.0 in)
1933	76.6 mm (3.0 in)
1934	80.8 mm (3.2 in)
1935	62.1 mm (2.4 in)
1936	57.7 mm (2.3 in)
1937	43.2 mm (1.7 in)
1938	45.9 mm (1.8 in)
1939	54.1 mm (2.1 in)
1940	112.5 mm (4.4 in)
1941	70.3 mm (2.8 in)
1942	65.0 mm (2.6 in)
1943	64.8 mm (2.6 in)
1944	86.8 mm (3.4 in)
1945	61.0 mm (2.4 in)
1946	63.0 mm (2.5 in)
1947	45.0 mm (1.8 in)
1948	64.5 mm (2.5 in)
1949	42.4 mm (1.7 in)
1950	70.9 mm (2.8 in)
1951	75.5 mm (3.0 in)
1952	42.4 mm (1.7 in)
1953	66.6 mm (2.6 in)
1954	63.4 mm (2.5 in)
1955	47.7 mm (1.9 in)
1956	91.5 mm (3.6 in)
1957	36.2 mm (1.4 in)
1958	97.8 mm (3.9 in)
1959	54.0 mm (2.1 in)
1960	43.0 mm (1.7 in)
1961	53.1 mm (2.1 in)
1962	82.2 mm (3.2 in)
1963	82.2 mm (3.2 in)
1964	44.2 mm (1.7 in)
1965	34.8 mm (1.4 in)
1966	52.8 mm (2.1 in)
1967	54.0 mm (2.1 in)
1968	34.8 mm (1.4 in)
1969	81.0 mm (3.2 in)
1970	127.5 mm (5.0 in)
1971	38.3 mm (1.5 in)
1972	88.8 mm (3.5 in)
1973	83.0 mm (3.3 in)
1974	115.0 mm (4.5 in)
1975	71.0 mm (2.8 in)
1976	47.2 mm (1.9 in)
1977	52.2 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Rocklands, 1893 to 1977. The record is 133 days in 1949, marked on the chart; the median year is 51 days.

Longest dry spell (CDD) at Rocklands by year
Year	Longest dry spell (CDD)
1893	32 days
1894	64 days
1895	62 days
1896	44 days
1897	51 days
1898	104 days
1899	35 days
1900	36 days
1901	74 days
1902	46 days
1903	61 days
1904	73 days
1905	52 days
1906	45 days
1907	54 days
1908	24 days
1909	84 days
1910	45 days
1911	49 days
1912	110 days
1913	38 days
1914	51 days
1915	46 days
1916	47 days
1917	31 days
1918	44 days
1919	97 days
1920	50 days
1921	89 days
1922	103 days
1923	54 days
1924	54 days
1925	29 days
1926	76 days
1927	70 days
1928	120 days
1929	25 days
1930	65 days
1931	58 days
1932	48 days
1933	39 days
1934	62 days
1935	36 days
1936	33 days
1937	51 days
1938	67 days
1939	31 days
1940	50 days
1941	51 days
1942	67 days
1943	32 days
1944	70 days
1945	60 days
1946	53 days
1947	41 days
1948	87 days
1949	133 days
1950	47 days
1951	67 days
1952	32 days
1953	43 days
1954	52 days
1955	26 days
1956	37 days
1957	31 days
1958	91 days
1959	57 days
1960	61 days
1961	43 days
1962	47 days
1963	37 days
1964	39 days
1965	45 days
1966	59 days
1967	50 days
1968	42 days
1969	70 days
1970	58 days
1971	60 days
1972	81 days
1973	68 days
1974	46 days
1975	54 days
1976	66 days
1977	82 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

83 years, 1894 to 1976

A day with at least 39.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 80.7 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Rocklands: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	39.7 mm (1.6 in)
5 years	50.7 mm (2.0 in)
10 years	57.9 mm (2.3 in)
25 years	67.1 mm (2.6 in)
50 years	73.9 mm (2.9 in)
100 years	80.7 mm (3.2 in)	Longer than the 83 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, 83 years of values from 1894 to 1976.

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: 116.8 mm (4.6 in) in 1930; 70.9 mm (2.8 in) in 1950; 68.0 mm (2.7 in) in 1974.

Download the Data

Data for Rocklands standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rocklands 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 2026-10-16 (16 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