Weather Records on 20 September 1959

489 weather records were set or tied worldwide on 20 September 1959. Highest significance: Coranderrk Badger Weir, AU.

Key Facts for 20 September 1959

On 20 September 1959, 489 weather records were set or tied at long-record stations worldwide.
46 were record highs and 136 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 27 monthly and 462 daily.
Coranderrk Badger Weir set a daily record precipitation of 68.6 mm (2.7 in) on 20 September 1959.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 442 records.

Record Map

489 stations

489 station records on 20 September 1959 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1959: highest significance records shown on the map
Station	Country	Type	Value	Significance
Coranderrk Badger Weir	Australia	Record daily precipitation	68.6 mm (2.7 in)	71 of 100 (Major)
St Helens Post Office	Australia	Record daily precipitation	102.1 mm (4.0 in)	71 of 100 (Major)
Swansea Post Office	Australia	Record daily precipitation	69.6 mm (2.7 in)	71 of 100 (Major)
Lilydale	Australia	Record daily precipitation	91.2 mm (3.6 in)	69 of 100 (Major)
Blackwarry	Australia	Record daily precipitation	85.3 mm (3.4 in)	63 of 100 (Major)
Carrajung Post Office	Australia	Record daily precipitation	76.2 mm (3.0 in)	63 of 100 (Major)
Port Albert	Australia	Record daily precipitation	42.4 mm (1.7 in)	63 of 100 (Major)
Cowes	Australia	Record daily precipitation	37.1 mm (1.5 in)	62 of 100 (Major)
Alberton Post Office	Australia	Record daily precipitation	52.1 mm (2.1 in)	61 of 100 (Major)
Mount Best (Upper Toora)	Australia	Record daily precipitation	70.6 mm (2.8 in)	61 of 100 (Major)
Bicheno (Council Depot)	Australia	Record daily precipitation	100.8 mm (4.0 in)	61 of 100 (Major)
Seaspray (Burong)	Australia	Record daily precipitation	54.6 mm (2.1 in)	60 of 100 (Major)
Moorina (Frome Dam)	Australia	Record daily precipitation	90.9 mm (3.6 in)	60 of 100 (Major)
Tortosa - Observatorio del Ebr	Spain	Record daily precipitation	107.1 mm (4.2 in)	60 of 100 (Major)
Swansea (Kelvedon)	Australia	Record daily precipitation	59.7 mm (2.4 in)	59 of 100 (Notable)
Old Koreelah (McPherson)	Australia	Record daily precipitation	55.4 mm (2.2 in)	57 of 100 (Notable)
Argalong (the Farm)	Australia	Record daily precipitation	67.3 mm (2.6 in)	57 of 100 (Notable)
Raipur	India	Record daily precipitation	165.8 mm (6.5 in)	55 of 100 (Notable)
Stradbroke Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	54 of 100 (Notable)
Poowong (Post Office)	Australia	Record daily precipitation	44.7 mm (1.8 in)	54 of 100 (Notable)
Yarra River (Yarra Glen)	Australia	Record daily precipitation	82.3 mm (3.2 in)	52 of 100 (Notable)
Hamirpur	India	Record daily precipitation	165.1 mm (6.5 in)	52 of 100 (Notable)
Mahespur	India	Record daily precipitation	121.4 mm (4.8 in)	51 of 100 (Notable)
Giffard	Australia	Record daily precipitation	43.9 mm (1.7 in)	49 of 100 (Notable)
Caulfield (Racecourse)	Australia	Record daily precipitation	44.5 mm (1.8 in)	49 of 100 (Notable)
Barcelona -Fabra Observatory	Spain	Record daily precipitation	65.0 mm (2.6 in)	49 of 100 (Notable)
Nicholson (Yendalock)	Australia	Record daily precipitation	28.7 mm (1.1 in)	48 of 100 (Notable)
Officer (Jesmond Dene)	Australia	Record daily precipitation	54.9 mm (2.2 in)	48 of 100 (Notable)
French Island (McLeod Prison)	Australia	Record daily precipitation	35.6 mm (1.4 in)	48 of 100 (Notable)
Narracan East (Lynnsmere)	Australia	Record daily precipitation	45.7 mm (1.8 in)	47 of 100 (Notable)
Eltham	Australia	Record daily precipitation	72.1 mm (2.8 in)	47 of 100 (Notable)
Garfield	Australia	Record daily precipitation	52.1 mm (2.1 in)	47 of 100 (Notable)
San Remo	Australia	Record daily precipitation	32.3 mm (1.3 in)	47 of 100 (Notable)
Hattonvale Store	Australia	Record daily precipitation	38.6 mm (1.5 in)	46 of 100 (Notable)
Heidelberg (Rosanna)	Australia	Record daily precipitation	54.1 mm (2.1 in)	46 of 100 (Notable)
Labertouche	Australia	Record daily precipitation	62.2 mm (2.4 in)	45 of 100 (Notable)
Balwyn North	Australia	Record daily precipitation	57.2 mm (2.3 in)	45 of 100 (Notable)
Apslawn	Australia	Record daily precipitation	86.4 mm (3.4 in)	45 of 100 (Notable)
Kew	Australia	Record daily precipitation	45.7 mm (1.8 in)	44 of 100 (Notable)
Kinglake	Australia	Record daily precipitation	67.6 mm (2.7 in)	44 of 100 (Notable)
Oakleigh (Metropolitan Golf Cl	Australia	Record daily precipitation	46.7 mm (1.8 in)	44 of 100 (Notable)
Preston Reservoir	Australia	Record daily precipitation	38.9 mm (1.5 in)	44 of 100 (Notable)
Nugent	Australia	Record daily precipitation	66.8 mm (2.6 in)	44 of 100 (Notable)
Ringwood	Australia	Record daily precipitation	68.6 mm (2.7 in)	43 of 100 (Notable)
Barcelona/Aeropuerto	Spain	Record daily precipitation	142.5 mm (5.6 in)	43 of 100 (Notable)
Longwarry	Australia	Record daily precipitation	39.4 mm (1.6 in)	42 of 100 (Notable)
Maria Island (Darlington)	Australia	Record daily precipitation	73.7 mm (2.9 in)	42 of 100 (Notable)
Pioneer (Main Road)	Australia	Record daily precipitation	65.0 mm (2.6 in)	42 of 100 (Notable)
Toora	Australia	Record daily precipitation	34.3 mm (1.4 in)	41 of 100 (Notable)
Valencia Creek (Bulgar Park)	Australia	Record daily precipitation	36.8 mm (1.4 in)	41 of 100 (Notable)
Girona (Antic Institut)	Spain	Record daily precipitation	43.1 mm (1.7 in)	40 of 100 (Notable)
Oconto 4 W	United States	Record daily precipitation	63.5 mm (2.5 in)	40 of 100 (Notable)
Red Hill South	Australia	Record daily precipitation	44.7 mm (1.8 in)	39 of 100 (Notable)
Eddystone Point	Australia	Record daily precipitation	35.1 mm (1.4 in)	39 of 100 (Notable)
Bushy Park	Australia	Record daily precipitation	29.2 mm (1.1 in)	38 of 100 (Notable)
Coburg	Australia	Record daily precipitation	31.8 mm (1.3 in)	38 of 100 (Notable)
Little Swanport (Lisdillon)	Australia	Record daily precipitation	59.7 mm (2.4 in)	38 of 100 (Notable)
Paynesville	Australia	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Wallan (Walnarring)	Australia	Record daily precipitation	25.7 mm (1.0 in)	37 of 100 (Notable)
Box Hill Aged Mens Retreat	Australia	Record daily precipitation	52.8 mm (2.1 in)	36 of 100 (Notable)

Counts by Type and Timescale

489 records

Records set or tied on 20 September 1959 by type: Highest daily maximum 17, Lowest daily maximum 66, Highest daily minimum 29, Lowest daily minimum 70, Heaviest daily rainfall 306, Deepest snow cover 1.

Records on 20 September 1959 by type
Record type	Records
Highest daily maximum	17
Lowest daily maximum	66
Highest daily minimum	29
Lowest daily minimum	70
Heaviest daily rainfall	306
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 20 September 1959 by timescale: all-time 0, monthly 27, daily 462.

How Much Records Were Beaten By

419 broken records

Margins by which the 419 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 131.5. Ties are not counted.

Top 20 by Significance

20 September 1959

Top 20 records on 20 September 1959 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1959	Coranderrk Badger Weir, AU	daily rain	68.6 mm (2.7 in)	53.4 mm (2.1 in)	78 years	71 of 100 (Major)
20 September 1959	St Helens Post Office, AU	monthly rain	102.1 mm (4.0 in)	40.9 mm (1.6 in)	48 years	71 of 100 (Major)
20 September 1959	Swansea Post Office, AU	monthly rain	69.6 mm (2.7 in)	30.2 mm (1.2 in)	48 years	71 of 100 (Major)
20 September 1959	Lilydale, AU	monthly rain	91.2 mm (3.6 in)	29.2 mm (1.1 in)	42 years	69 of 100 (Major)
20 September 1959	Blackwarry, AU	daily rain	85.3 mm (3.4 in)	68.0 mm (2.7 in)	54 years	63 of 100 (Major)
20 September 1959	Carrajung Post Office, AU	daily rain	76.2 mm (3.0 in)	50.8 mm (2.0 in)	54 years	63 of 100 (Major)
20 September 1959	Port Albert, AU	daily rain	42.4 mm (1.7 in)	29.7 mm (1.2 in)	50 years	63 of 100 (Major)
20 September 1959	Cowes, AU	daily rain	37.1 mm (1.5 in)	24.9 mm (1.0 in)	50 years	62 of 100 (Major)
20 September 1959	Alberton Post Office, AU	daily rain	52.1 mm (2.1 in)	36.6 mm (1.4 in)	54 years	61 of 100 (Major)
20 September 1959	Mount Best (Upper Toora), AU	daily rain	70.6 mm (2.8 in)	50.5 mm (2.0 in)	54 years	61 of 100 (Major)
20 September 1959	Bicheno (Council Depot), AU	monthly rain	100.8 mm (4.0 in)	49.0 mm (1.9 in)	24 years	61 of 100 (Major)
20 September 1959	Seaspray (Burong), AU	daily rain	54.6 mm (2.1 in)	38.3 mm (1.5 in)	49 years	60 of 100 (Major)
20 September 1959	Moorina (Frome Dam), AU	monthly rain	90.9 mm (3.6 in)	35.3 mm (1.4 in)	22 years	60 of 100 (Major)
20 September 1959	Tortosa - Observatorio del Ebr, ES	daily rain	107.1 mm (4.2 in)	85.1 mm (3.4 in)	50 years	60 of 100 (Major)
20 September 1959	Swansea (Kelvedon), AU	monthly rain	59.7 mm (2.4 in)	18.0 mm (0.7 in)	39 years	59 of 100 (Notable)
20 September 1959	Old Koreelah (McPherson), AU	daily rain	55.4 mm (2.2 in)	40.4 mm (1.6 in)	45 years	57 of 100 (Notable)
20 September 1959	Argalong (the Farm), AU	daily rain	67.3 mm (2.6 in)	41.9 mm (1.6 in)	44 years	57 of 100 (Notable)
20 September 1959	Raipur, IN	daily rain	165.8 mm (6.5 in)	131.5 mm (5.2 in)	34 years	55 of 100 (Notable)
20 September 1959	Stradbroke Post Office, AU	daily rain	33.0 mm (1.3 in)	21.6 mm (0.9 in)	54 years	54 of 100 (Notable)
20 September 1959	Poowong (Post Office), AU	daily rain	44.7 mm (1.8 in)	24.4 mm (1.0 in)	57 years	54 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1812 to 1959

Records set or tied on this calendar date in each year from 1812 to 1959. 1959 had 489 records.

Counts for years before the ledger starts come from the same station rules.

Records on 09-20 in each year
Year	Records
1812	1
1837	1
1840	1
1844	1
1848	2
1851	1
1852	1
1854	2
1855	1
1856	2
1859	2
1860	1
1862	1
1870	1
1871	2
1882	2
1883	1
1884	1
1886	2
1887	1
1888	2
1889	8
1891	4
1893	5
1894	1
1895	2
1896	1
1897	16
1898	4
1899	1
1900	2
1901	3
1902	3
1903	3
1904	12
1905	8
1906	22
1907	11
1908	24
1909	10
1910	8
1911	21
1912	34
1913	48
1914	28
1915	239
1916	28
1917	100
1918	59
1919	55
1920	64
1921	40
1922	52
1923	249
1924	329
1925	330
1926	129
1927	169
1928	144
1929	373
1930	102
1931	564
1932	270
1933	223
1934	349
1935	201
1936	133
1937	385
1938	506
1939	312
1940	591
1941	582
1942	436
1943	419
1944	466
1945	406
1946	766
1947	460
1948	454
1949	268
1950	435
1951	267
1952	434
1953	479
1954	628
1955	625
1956	985
1957	514
1958	410
1959	489
1960	352
1961	384
1962	707
1963	290
1964	482
1965	1,180
1966	414
1967	449
1968	617
1969	604
1970	591
1971	884
1972	582
1973	569
1974	771
1975	527
1976	375
1977	776
1978	1,216
1979	767
1980	567
1981	979
1982	911
1983	1,958
1984	895
1985	730
1986	743
1987	856
1988	698
1989	968
1990	743
1991	1,835
1992	718
1993	1,031
1994	788
1995	1,374
1996	1,077
1997	1,282
1998	1,157
1999	923
2000	908
2001	821
2002	845
2003	910
2004	1,156
2005	960
2006	732
2007	645
2008	648
2009	715
2010	1,497
2011	650
2012	549
2013	595
2014	577
2015	439
2016	778
2017	920
2018	1,020
2019	835
2020	630
2021	565
2022	786
2023	482
2024	596
2025	877
2026	682

Download the Data

Data for records on 1959-09-20: CSV or JSON. Field meanings are on the data page.

Sources: 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)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	357
20 to 40	43
40 to 60	12
60 to 80	2
80 to 100	2
100 to 120	0
120 to 140	3