Robertson Weather Records (SF000236780)

Record envelope, standing records and threshold days for Robertson (SF000236780), South Africa, with 150 years of record.

Key Facts for Robertson

Robertson (SF000236780) is a weather station in South Africa at -33.80 latitude and 19.90 longitude, 204 m (669 ft) above sea level.
The station reports from 1877 to 2026, 150 years of record.
1,464 records set at Robertson still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Robertson set a daily record precipitation of 9.9 mm (0.39 in) on 5 January 2023.

About the Station

Location: South Africa, -33.80 latitude, 19.90 longitude.
Elevation: 204 m (669 ft).
Period of record: 1877 to 2026, 150 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

35 days at or beyond a record

The band shows the record high and record low for each calendar day at Robertson. The lines show the 2026 daily maximum and minimum. 35 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Robertson, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	45.9 C (114.6 F)	3.4 C (38.1 F)	30.9 C (87.6 F)	6.7 C (44.1 F)
Feb	43.6 C (110.5 F)	5.7 C (42.3 F)	n/a	n/a
Mar	44.0 C (111.2 F)	6.7 C (44.1 F)	36.0 C (96.8 F)	8.4 C (47.1 F)
Apr	38.3 C (100.9 F)	1.3 C (34.3 F)	32.1 C (89.8 F)	6.6 C (43.9 F)
May	34.7 C (94.5 F)	1.3 C (34.3 F)	25.1 C (77.2 F)	3.1 C (37.6 F)
Jun	31.5 C (88.7 F)	0.0 C (32.0 F)	22.7 C (72.9 F)	0.7 C (33.3 F)
Jul	31.3 C (88.3 F)	-3.4 C (25.9 F)	24.7 C (76.5 F)	-1.2 C (29.8 F)
Aug	31.4 C (88.5 F)	-4.9 C (23.2 F)	21.2 C (70.2 F)	-1.9 C (28.6 F)
Sep	37.6 C (99.7 F)	-0.8 C (30.6 F)	30.1 C (86.2 F)	1.6 C (34.9 F)
Oct	41.6 C (106.9 F)	1.5 C (34.7 F)	35.8 C (96.4 F)	3.3 C (37.9 F)
Nov	40.5 C (104.9 F)	2.6 C (36.7 F)	31.8 C (89.2 F)	2.6 C (36.7 F)
Dec	44.8 C (112.6 F)	6.3 C (43.3 F)	36.8 C (98.2 F)	11.7 C (53.1 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Robertson still stand. 2025 holds the most, with 165.

Standing records at Robertson by the year they were set
Year set	Standing records
1979	1
1982	4
1983	2
1987	1
1988	6
1989	6
1990	4
1992	1
1993	3
1994	3
1995	1
1996	3
1997	2
1998	1
2002	1
2003	6
2004	9
2005	4
2009	30
2010	86
2011	72
2012	85
2013	91
2014	76
2015	95
2016	97
2017	98
2018	100
2019	97
2020	79
2021	73
2022	66
2023	17
2024	79
2025	165

Wettest Day of Each Month

Feb: 121.9 mm (4.8 in)

The wettest day on record for each calendar month at Robertson. The most was 121.9 mm (4.8 in) on 11 February 1902.

Record daily precipitation for each month at Robertson
Month	Record daily precipitation (mm)	Date
Jan	111.5 mm (4.4 in)	25 January 1981
Feb	121.9 mm (4.8 in)	11 February 1902
Mar	55.9 mm (2.2 in)	17 March 1922
Apr	91.9 mm (3.6 in)	11 April 1878
May	100.0 mm (3.9 in)	14 May 1963
Jun	43.2 mm (1.7 in)	26 June 1956
Jul	106.9 mm (4.2 in)	1 July 2003
Aug	69.5 mm (2.7 in)	20 August 1962
Sep	57.7 mm (2.3 in)	23 September 1932
Oct	94.0 mm (3.7 in)	23 October 1956
Nov	56.0 mm (2.2 in)	5 November 1964
Dec	119.4 mm (4.7 in)	14 December 1906

Period of Record Coverage

1982 to 2025

39 years of record at Robertson, 1982 to 2025. 30 years have data for under 90 percent of days and are left out of rankings: 1982, 1983, 1986, 1987, 1988, 1989, 1990, 1991 and others.

Days with data per year at Robertson
Year	Days with data	Share of year	Complete
1982	10	3%	No
1983	2	1%	No
1986	3	1%	No
1987	7	2%	No
1988	18	5%	No
1989	18	5%	No
1990	7	2%	No
1991	1	0%	No
1992	4	1%	No
1993	10	3%	No
1994	13	4%	No
1995	4	1%	No
1996	8	2%	No
1997	4	1%	No
1998	8	2%	No
1999	2	1%	No
2001	5	1%	No
2002	4	1%	No
2003	12	3%	No
2004	27	7%	No
2005	9	2%	No
2006	1	0%	No
2009	112	31%	No
2010	316	87%	No
2011	296	81%	No
2012	312	85%	No
2013	335	92%	Yes
2014	328	90%	No
2015	344	94%	Yes
2016	352	96%	Yes
2017	358	98%	Yes
2018	344	94%	Yes
2019	360	99%	Yes
2020	354	97%	Yes
2021	355	97%	Yes
2022	355	97%	Yes
2023	55	15%	No
2024	202	55%	No
2025	278	76%	No

Latest Records

Latest records at Robertson
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
5 January 2023	Robertson, ZA	daily rain	9.9 mm (0.39 in)	2.5 mm (0.10 in)	127 years	20 of 100 (Routine)
13 December 2022	Robertson, ZA	daily rain	23.9 mm (0.9 in)	6.6 mm (0.26 in)	116 years	20 of 100 (Routine)
12 December 2022	Robertson, ZA	daily rain	16.0 mm (0.6 in)	5.8 mm (0.23 in)	122 years	20 of 100 (Routine)
15 June 2022	Robertson, ZA	daily rain	26.9 mm (1.1 in)	1.0 mm (0.04 in)	12 years	14 of 100 (Routine)
6 May 2021	Robertson, ZA	daily rain	42.9 mm (1.7 in)	23.4 mm (0.9 in)	46 years	52 of 100 (Notable)
9 March 2020	Robertson, ZA	daily rain	7.9 mm (0.31 in)	3.8 mm (0.15 in)	139 years	20 of 100 (Routine)
20 January 2020	Robertson, ZA	daily rain	26.9 mm (1.1 in)	16.7 mm (0.7 in)	76 years	48 of 100 (Notable)
19 January 2020	Robertson, ZA	daily rain	34.0 mm (1.3 in)	8.1 mm (0.32 in)	136 years	47 of 100 (Notable)
24 July 2019	Robertson, ZA	daily rain	27.9 mm (1.1 in)	2.2 mm (0.09 in)	137 years	42 of 100 (Notable)
12 March 2019	Robertson, ZA	daily rain	33.0 mm (1.3 in)	18.5 mm (0.7 in)	125 years	65 of 100 (Major)
27 December 2018	Robertson, ZA	daily rain	13.0 mm (0.5 in)	4.0 mm (0.16 in)	56 years	20 of 100 (Routine)
27 November 2018	Robertson, ZA	daily rain	10.9 mm (0.4 in)	1.2 mm (0.05 in)	92 years	20 of 100 (Routine)
2 July 2018	Robertson, ZA	daily rain	26.9 mm (1.1 in)	9.1 mm (0.36 in)	97 years	50 of 100 (Notable)
15 November 2017	Robertson, ZA	daily rain	39.9 mm (1.6 in)	15.5 mm (0.6 in)	68 years	47 of 100 (Notable)
16 July 2017	Robertson, ZA	daily rain	17.0 mm (0.7 in)	2.8 mm (0.11 in)	63 years	20 of 100 (Routine)
8 June 2017	Robertson, ZA	daily rain	26.9 mm (1.1 in)	2.3 mm (0.09 in)	96 years	41 of 100 (Notable)
3 September 2016	Robertson, ZA	daily rain	18.0 mm (0.7 in)	3.0 mm (0.12 in)	32 years	20 of 100 (Routine)
27 July 2016	Robertson, ZA	daily rain	22.1 mm (0.9 in)	10.9 mm (0.4 in)	107 years	20 of 100 (Routine)
7 January 2016	Robertson, ZA	daily rain	5.1 mm (0.20 in)	1.0 mm (0.04 in)	136 years	20 of 100 (Routine)
18 July 2015	Robertson, ZA	daily rain	40.9 mm (1.6 in)	16.8 mm (0.7 in)	65 years	50 of 100 (Notable)

Extremes by Year

1877 to 2026

Yearly extremes at Robertson: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.9 C (114.6 F)	2022	38.8 C (101.9 F)	40
Coldest night (TNn)	-4.9 C (23.2 F)	2024	1.3 C (34.3 F)	42
Wettest day (Rx1day)	121.9 mm (4.8 in)	1902	30.5 mm (1.2 in)	139
Wettest five days (Rx5day)	172.5 mm (6.8 in)	1981	49.3 mm (1.9 in)	125
Longest dry spell (CDD)	80 days	1961	37 days	132

Hottest day (TXx)

The hottest day of the year at Robertson, 1877 to 2026. The record is 45.9 C (114.6 F) in 2022, marked on the chart; the median year is 38.8 C (101.9 F).

Hottest day (TXx) at Robertson by year
Year	Hottest day (TXx)
1877	n/a
1878	n/a
1879	n/a
1880	n/a
1881	n/a
1882	n/a
1883	n/a
1884	n/a
1885	n/a
1886	n/a
1887	n/a
1888	n/a
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	34.4 C (93.9 F)
1983	22.4 C (72.3 F)
1984	n/a
1985	n/a
1986	33.6 C (92.5 F)
1987	33.7 C (92.7 F)
1988	37.7 C (99.9 F)
1989	36.6 C (97.9 F)
1990	39.4 C (102.9 F)
1991	34.2 C (93.6 F)
1992	36.0 C (96.8 F)
1993	39.3 C (102.7 F)
1994	36.1 C (97.0 F)
1995	31.9 C (89.4 F)
1996	32.2 C (90.0 F)
1997	36.2 C (97.2 F)
1998	33.1 C (91.6 F)
1999	33.2 C (91.8 F)
2001	38.0 C (100.4 F)
2002	32.2 C (90.0 F)
2003	36.6 C (97.9 F)
2004	39.5 C (103.1 F)
2005	32.3 C (90.1 F)
2006	39.5 C (103.1 F)
2009	38.4 C (101.1 F)
2010	43.0 C (109.4 F)
2011	42.0 C (107.6 F)
2012	43.6 C (110.5 F)
2013	41.8 C (107.2 F)
2014	40.3 C (104.5 F)
2015	44.8 C (112.6 F)
2016	41.4 C (106.5 F)
2017	43.2 C (109.8 F)
2018	43.1 C (109.6 F)
2019	42.2 C (108.0 F)
2020	40.8 C (105.4 F)
2021	40.6 C (105.1 F)
2022	45.9 C (114.6 F)
2023	40.7 C (105.3 F)
2024	39.7 C (103.5 F)
2025	36.8 C (98.2 F)
2026	40.6 C (105.1 F)

Coldest night (TNn)

The coldest night of the year at Robertson, 1877 to 2026. The record is -4.9 C (23.2 F) in 2024, marked on the chart; the median year is 1.3 C (34.3 F).

Coldest night (TNn) at Robertson by year
Year	Coldest night (TNn)
1877	n/a
1878	n/a
1879	n/a
1880	n/a
1881	n/a
1882	n/a
1883	n/a
1884	n/a
1885	n/a
1886	n/a
1887	n/a
1888	n/a
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	11.0 C (51.8 F)
1980	2.0 C (35.6 F)
1981	0.0 C (32.0 F)
1982	3.4 C (38.1 F)
1983	12.8 C (55.0 F)
1984	n/a
1985	n/a
1986	7.9 C (46.2 F)
1987	9.5 C (49.1 F)
1988	6.0 C (42.8 F)
1989	1.3 C (34.3 F)
1990	11.3 C (52.3 F)
1991	n/a
1992	10.4 C (50.7 F)
1993	5.0 C (41.0 F)
1994	1.6 C (34.9 F)
1995	10.1 C (50.2 F)
1996	5.5 C (41.9 F)
1997	14.3 C (57.7 F)
1998	0.4 C (32.7 F)
1999	8.1 C (46.6 F)
2001	7.0 C (44.6 F)
2002	3.6 C (38.5 F)
2003	0.2 C (32.4 F)
2004	1.3 C (34.3 F)
2005	7.7 C (45.9 F)
2006	15.0 C (59.0 F)
2009	0.9 C (33.6 F)
2010	-0.8 C (30.6 F)
2011	-0.1 C (31.8 F)
2012	0.3 C (32.5 F)
2013	0.2 C (32.4 F)
2014	-1.5 C (29.3 F)
2015	-0.7 C (30.7 F)
2016	-1.2 C (29.8 F)
2017	0.2 C (32.4 F)
2018	0.2 C (32.4 F)
2019	0.5 C (32.9 F)
2020	0.6 C (33.1 F)
2021	-0.5 C (31.1 F)
2022	-0.3 C (31.5 F)
2023	10.1 C (50.2 F)
2024	-4.9 C (23.2 F)
2025	-1.9 C (28.6 F)
2026	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at Robertson, 1877 to 2026. The record is 121.9 mm (4.8 in) in 1902, marked on the chart; the median year is 30.5 mm (1.2 in).

Wettest day (Rx1day) at Robertson by year
Year	Wettest day (Rx1day)
1877	17.3 mm (0.7 in)
1878	91.9 mm (3.6 in)
1879	21.3 mm (0.8 in)
1880	26.7 mm (1.1 in)
1881	28.4 mm (1.1 in)
1882	51.6 mm (2.0 in)
1883	25.9 mm (1.0 in)
1884	46.2 mm (1.8 in)
1885	36.3 mm (1.4 in)
1886	34.5 mm (1.4 in)
1887	19.1 mm (0.8 in)
1888	34.8 mm (1.4 in)
1889	14.0 mm (0.6 in)
1890	46.7 mm (1.8 in)
1891	19.8 mm (0.8 in)
1892	30.5 mm (1.2 in)
1893	25.4 mm (1.0 in)
1894	30.5 mm (1.2 in)
1895	28.4 mm (1.1 in)
1896	33.0 mm (1.3 in)
1897	17.8 mm (0.7 in)
1898	33.3 mm (1.3 in)
1899	45.2 mm (1.8 in)
1900	55.6 mm (2.2 in)
1901	46.0 mm (1.8 in)
1902	121.9 mm (4.8 in)
1903	34.3 mm (1.4 in)
1904	30.0 mm (1.2 in)
1905	38.1 mm (1.5 in)
1906	119.4 mm (4.7 in)
1907	22.6 mm (0.9 in)
1908	35.1 mm (1.4 in)
1909	31.2 mm (1.2 in)
1910	45.7 mm (1.8 in)
1911	46.5 mm (1.8 in)
1912	27.4 mm (1.1 in)
1913	34.8 mm (1.4 in)
1914	32.0 mm (1.3 in)
1915	24.6 mm (1.0 in)
1916	19.1 mm (0.8 in)
1918	50.8 mm (2.0 in)
1919	20.8 mm (0.8 in)
1920	33.8 mm (1.3 in)
1921	34.3 mm (1.4 in)
1922	70.1 mm (2.8 in)
1923	35.1 mm (1.4 in)
1924	12.2 mm (0.5 in)
1925	20.3 mm (0.8 in)
1926	28.7 mm (1.1 in)
1927	28.2 mm (1.1 in)
1928	51.6 mm (2.0 in)
1929	47.5 mm (1.9 in)
1930	61.5 mm (2.4 in)
1931	33.0 mm (1.3 in)
1932	57.7 mm (2.3 in)
1933	23.4 mm (0.9 in)
1934	48.3 mm (1.9 in)
1935	36.8 mm (1.4 in)
1936	35.6 mm (1.4 in)
1937	35.6 mm (1.4 in)
1938	15.7 mm (0.6 in)
1939	44.5 mm (1.8 in)
1940	22.4 mm (0.9 in)
1941	33.3 mm (1.3 in)
1942	41.4 mm (1.6 in)
1943	32.3 mm (1.3 in)
1944	24.9 mm (1.0 in)
1945	45.7 mm (1.8 in)
1946	16.8 mm (0.7 in)
1947	22.9 mm (0.9 in)
1948	47.5 mm (1.9 in)
1949	44.5 mm (1.8 in)
1950	22.1 mm (0.9 in)
1951	59.4 mm (2.3 in)
1952	26.2 mm (1.0 in)
1953	27.9 mm (1.1 in)
1954	36.3 mm (1.4 in)
1955	74.2 mm (2.9 in)
1956	94.0 mm (3.7 in)
1957	53.3 mm (2.1 in)
1958	32.5 mm (1.3 in)
1959	25.5 mm (1.0 in)
1960	27.0 mm (1.1 in)
1961	25.0 mm (1.0 in)
1962	69.5 mm (2.7 in)
1963	100.0 mm (3.9 in)
1964	56.0 mm (2.2 in)
1965	26.5 mm (1.0 in)
1966	30.0 mm (1.2 in)
1967	20.9 mm (0.8 in)
1968	32.5 mm (1.3 in)
1969	26.0 mm (1.0 in)
1970	24.5 mm (1.0 in)
1971	34.0 mm (1.3 in)
1972	28.0 mm (1.1 in)
1973	22.0 mm (0.9 in)
1974	40.5 mm (1.6 in)
1975	27.0 mm (1.1 in)
1976	32.0 mm (1.3 in)
1977	54.0 mm (2.1 in)
1978	19.5 mm (0.8 in)
1979	22.5 mm (0.9 in)
1980	48.0 mm (1.9 in)
1981	111.5 mm (4.4 in)
1982	47.5 mm (1.9 in)
1983	37.0 mm (1.5 in)
1984	26.0 mm (1.0 in)
1985	51.5 mm (2.0 in)
1986	24.0 mm (0.9 in)
1987	2.8 mm (0.11 in)
1988	2.0 mm (0.08 in)
1989	16.5 mm (0.6 in)
1990	25.1 mm (1.0 in)
1991	n/a
1992	n/a
1993	0.8 mm (0.03 in)
1994	0.8 mm (0.03 in)
1995	6.1 mm (0.24 in)
1996	1.0 mm (0.04 in)
1997	n/a
1998	11.4 mm (0.4 in)
1999	n/a
2001	4.3 mm (0.17 in)
2002	5.6 mm (0.22 in)
2003	106.9 mm (4.2 in)
2004	2.8 mm (0.11 in)
2005	n/a
2006	n/a
2009	19.1 mm (0.8 in)
2010	25.9 mm (1.0 in)
2011	25.9 mm (1.0 in)
2012	22.4 mm (0.9 in)
2013	55.9 mm (2.2 in)
2014	17.0 mm (0.7 in)
2015	40.9 mm (1.6 in)
2016	23.1 mm (0.9 in)
2017	39.9 mm (1.6 in)
2018	26.9 mm (1.1 in)
2019	33.0 mm (1.3 in)
2020	34.0 mm (1.3 in)
2021	42.9 mm (1.7 in)
2022	26.9 mm (1.1 in)
2023	14.0 mm (0.6 in)
2024	22.1 mm (0.9 in)
2025	n/a
2026	23.6 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Robertson, 1877 to 2026. The record is 172.5 mm (6.8 in) in 1981, marked on the chart; the median year is 49.3 mm (1.9 in).

Wettest five days (Rx5day) at Robertson by year
Year	Wettest five days (Rx5day)
1877	28.2 mm (1.1 in)
1878	113.5 mm (4.5 in)
1879	25.6 mm (1.0 in)
1880	53.9 mm (2.1 in)
1881	42.7 mm (1.7 in)
1882	52.9 mm (2.1 in)
1883	29.0 mm (1.1 in)
1884	47.0 mm (1.9 in)
1885	52.8 mm (2.1 in)
1886	52.0 mm (2.0 in)
1887	33.3 mm (1.3 in)
1888	46.5 mm (1.8 in)
1889	32.1 mm (1.3 in)
1890	48.7 mm (1.9 in)
1891	26.9 mm (1.1 in)
1892	50.3 mm (2.0 in)
1893	38.1 mm (1.5 in)
1894	48.3 mm (1.9 in)
1895	60.7 mm (2.4 in)
1896	45.2 mm (1.8 in)
1897	33.0 mm (1.3 in)
1898	48.3 mm (1.9 in)
1899	65.8 mm (2.6 in)
1900	83.5 mm (3.3 in)
1901	57.7 mm (2.3 in)
1902	141.0 mm (5.6 in)
1903	39.9 mm (1.6 in)
1904	32.6 mm (1.3 in)
1905	43.2 mm (1.7 in)
1906	168.6 mm (6.6 in)
1907	39.6 mm (1.6 in)
1908	52.4 mm (2.1 in)
1909	60.4 mm (2.4 in)
1910	72.1 mm (2.8 in)
1911	56.1 mm (2.2 in)
1912	38.9 mm (1.5 in)
1913	40.6 mm (1.6 in)
1914	45.6 mm (1.8 in)
1915	35.1 mm (1.4 in)
1916	27.7 mm (1.1 in)
1918	64.5 mm (2.5 in)
1919	25.9 mm (1.0 in)
1920	50.6 mm (2.0 in)
1921	51.3 mm (2.0 in)
1922	77.2 mm (3.0 in)
1923	37.2 mm (1.5 in)
1924	21.1 mm (0.8 in)
1925	57.2 mm (2.3 in)
1926	53.5 mm (2.1 in)
1927	50.3 mm (2.0 in)
1928	67.1 mm (2.6 in)
1929	47.5 mm (1.9 in)
1930	76.2 mm (3.0 in)
1931	45.4 mm (1.8 in)
1932	73.2 mm (2.9 in)
1933	45.5 mm (1.8 in)
1934	57.7 mm (2.3 in)
1935	43.4 mm (1.7 in)
1936	61.7 mm (2.4 in)
1937	53.6 mm (2.1 in)
1938	38.8 mm (1.5 in)
1939	66.2 mm (2.6 in)
1940	39.6 mm (1.6 in)
1941	64.6 mm (2.5 in)
1942	80.8 mm (3.2 in)
1943	43.2 mm (1.7 in)
1944	54.7 mm (2.2 in)
1945	76.5 mm (3.0 in)
1946	22.9 mm (0.9 in)
1947	38.2 mm (1.5 in)
1948	69.1 mm (2.7 in)
1949	63.6 mm (2.5 in)
1950	34.1 mm (1.3 in)
1951	59.4 mm (2.3 in)
1952	55.1 mm (2.2 in)
1953	41.1 mm (1.6 in)
1954	68.3 mm (2.7 in)
1955	111.5 mm (4.4 in)
1956	135.9 mm (5.4 in)
1957	101.6 mm (4.0 in)
1958	42.2 mm (1.7 in)
1959	34.0 mm (1.3 in)
1960	28.5 mm (1.1 in)
1961	31.2 mm (1.2 in)
1962	95.5 mm (3.8 in)
1963	111.0 mm (4.4 in)
1964	100.9 mm (4.0 in)
1965	30.5 mm (1.2 in)
1966	55.5 mm (2.2 in)
1967	28.7 mm (1.1 in)
1968	44.0 mm (1.7 in)
1969	30.5 mm (1.2 in)
1970	53.0 mm (2.1 in)
1971	67.2 mm (2.6 in)
1972	39.3 mm (1.5 in)
1973	22.8 mm (0.9 in)
1974	64.8 mm (2.6 in)
1975	39.5 mm (1.6 in)
1976	39.5 mm (1.6 in)
1977	98.0 mm (3.9 in)
1978	43.0 mm (1.7 in)
1979	34.5 mm (1.4 in)
1980	79.0 mm (3.1 in)
1981	172.5 mm (6.8 in)
1982	82.5 mm (3.2 in)
1983	52.8 mm (2.1 in)
1984	42.9 mm (1.7 in)
1985	67.5 mm (2.7 in)
1986	65.4 mm (2.6 in)
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2009	n/a
2010	49.2 mm (1.9 in)
2011	18.6 mm (0.7 in)
2012	23.7 mm (0.9 in)
2013	65.8 mm (2.6 in)
2014	20.8 mm (0.8 in)
2015	89.2 mm (3.5 in)
2016	31.2 mm (1.2 in)
2017	53.1 mm (2.1 in)
2018	28.5 mm (1.1 in)
2019	62.9 mm (2.5 in)
2020	63.9 mm (2.5 in)
2021	49.3 mm (1.9 in)
2022	46.5 mm (1.8 in)
2023	19.4 mm (0.8 in)
2024	10.6 mm (0.4 in)
2025	n/a
2026	70.2 mm (2.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Robertson, 1877 to 2026. The record is 80 days in 1961, marked on the chart; the median year is 37 days.

Longest dry spell (CDD) at Robertson by year
Year	Longest dry spell (CDD)
1877	27 days
1878	34 days
1879	55 days
1880	40 days
1881	62 days
1882	61 days
1883	57 days
1884	34 days
1885	23 days
1886	26 days
1887	28 days
1888	29 days
1889	31 days
1890	25 days
1891	30 days
1892	35 days
1893	45 days
1894	46 days
1895	36 days
1896	34 days
1897	48 days
1898	28 days
1899	62 days
1900	33 days
1901	37 days
1902	45 days
1903	53 days
1904	28 days
1905	56 days
1906	34 days
1907	56 days
1908	57 days
1909	33 days
1910	36 days
1911	46 days
1912	53 days
1913	41 days
1914	33 days
1915	47 days
1916	13 days
1918	31 days
1919	30 days
1920	39 days
1921	45 days
1922	26 days
1923	54 days
1924	47 days
1925	26 days
1926	45 days
1927	44 days
1928	32 days
1929	49 days
1930	33 days
1931	41 days
1932	31 days
1933	46 days
1934	42 days
1935	42 days
1936	28 days
1937	32 days
1938	44 days
1939	38 days
1940	39 days
1941	47 days
1942	41 days
1943	32 days
1944	36 days
1945	78 days
1946	40 days
1947	37 days
1948	60 days
1949	61 days
1950	33 days
1951	59 days
1952	19 days
1953	35 days
1954	41 days
1955	61 days
1956	45 days
1957	65 days
1958	52 days
1959	46 days
1960	75 days
1961	80 days
1962	35 days
1963	54 days
1964	48 days
1965	47 days
1966	57 days
1967	40 days
1968	63 days
1969	51 days
1970	34 days
1971	55 days
1972	33 days
1973	37 days
1974	37 days
1975	46 days
1976	39 days
1977	41 days
1978	36 days
1979	33 days
1980	52 days
1981	26 days
1982	47 days
1983	31 days
1984	42 days
1985	30 days
1986	52 days
1987	n/a
1988	1 day
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	1 day
1994	1 day
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2001	1 day
2002	n/a
2003	1 day
2004	2 days
2005	n/a
2006	n/a
2009	3 days
2010	5 days
2011	3 days
2012	4 days
2013	3 days
2014	7 days
2015	4 days
2016	6 days
2017	4 days
2018	5 days
2019	7 days
2020	4 days
2021	4 days
2022	4 days
2023	2 days
2024	5 days
2025	n/a
2026	16 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

103 years, 1879 to 1985

A day with at least 33.2 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 120.8 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Robertson: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	33.2 mm (1.3 in)
5 years	48.8 mm (1.9 in)
10 years	61.7 mm (2.4 in)
25 years	81.7 mm (3.2 in)
50 years	99.7 mm (3.9 in)
100 years	120.8 mm (4.8 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 103 years of values from 1879 to 1985.

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: 121.9 mm (4.8 in) in 1902; 119.4 mm (4.7 in) in 1906; 111.5 mm (4.4 in) in 1981.

Download the Data

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