Weather Records on 27 September 1964

724 weather records were set or tied worldwide on 27 September 1964. Highest significance: Blanchetown, AU.

Key Facts for 27 September 1964

On 27 September 1964, 724 weather records were set or tied at long-record stations worldwide.
26 were record highs and 85 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 39 monthly and 685 daily.
Blanchetown set a daily record precipitation of 29.2 mm (1.1 in) on 27 September 1964.
Across 154 earlier years (1799 to 2026) the same calendar date averaged 449 records.

Record Map

724 stations

724 station records on 27 September 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 September 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Blanchetown	Australia	Record daily precipitation	29.2 mm (1.1 in)	69 of 100 (Major)
Koomooloo	Australia	Record daily precipitation	31.2 mm (1.2 in)	63 of 100 (Major)
Lyrup	Australia	Record daily precipitation	51.3 mm (2.0 in)	63 of 100 (Major)
Hawker	Australia	Record daily precipitation	45.5 mm (1.8 in)	62 of 100 (Major)
Wanaaring (Yamba)	Australia	Record daily precipitation	45.2 mm (1.8 in)	62 of 100 (Major)
Cradock (Kanyaka)	Australia	Record daily precipitation	41.1 mm (1.6 in)	60 of 100 (Major)
Wilcannia (Billilla)	Australia	Record daily precipitation	34.0 mm (1.3 in)	60 of 100 (Major)
Canbelego the Hermitage	Australia	Record daily precipitation	37.1 mm (1.5 in)	60 of 100 (Major)
Russellville	United States	Record daily precipitation	83.8 mm (3.3 in)	60 of 100 (Major)
Hawker (Warcowie)	Australia	Record daily precipitation	43.9 mm (1.7 in)	59 of 100 (Notable)
Lake Victoria (Cal-Lal)	Australia	Record daily precipitation	37.1 mm (1.5 in)	59 of 100 (Notable)
Wilcannia (Burndoo Estate)	Australia	Record daily precipitation	31.2 mm (1.2 in)	59 of 100 (Notable)
Belton (Shadow Vale)	Australia	Record daily precipitation	55.9 mm (2.2 in)	58 of 100 (Notable)
Cradock	Australia	Record daily precipitation	50.8 mm (2.0 in)	57 of 100 (Notable)
Overland Corner	Australia	Record daily precipitation	33.0 mm (1.3 in)	57 of 100 (Notable)
Wallaville- Mill Street	Australia	Record daily precipitation	87.6 mm (3.4 in)	56 of 100 (Notable)
Orroroo (Yalpara)	Australia	Record daily precipitation	45.0 mm (1.8 in)	55 of 100 (Notable)
Yunta	Australia	Record daily precipitation	32.5 mm (1.3 in)	55 of 100 (Notable)
Paringa (Beardy Park Farm)	Australia	Record daily precipitation	51.1 mm (2.0 in)	55 of 100 (Notable)
Clover Creek	Australia	Record daily precipitation	40.1 mm (1.6 in)	55 of 100 (Notable)
Broken Hill (Langawirra)	Australia	Record daily precipitation	41.9 mm (1.6 in)	54 of 100 (Notable)
Collarenebri (Albert St)	Australia	Record daily precipitation	55.9 mm (2.2 in)	54 of 100 (Notable)
Morkalla North	Australia	Record daily precipitation	42.2 mm (1.7 in)	54 of 100 (Notable)
Mulcra	Australia	Record daily precipitation	35.6 mm (1.4 in)	54 of 100 (Notable)
Nanambinia	Australia	Record daily precipitation	53.1 mm (2.1 in)	53 of 100 (Notable)
Immarna	Australia	Record daily precipitation	25.9 mm (1.0 in)	53 of 100 (Notable)
Inskip Point Lighthouse	Australia	Record daily precipitation	77.2 mm (3.0 in)	53 of 100 (Notable)
Hartsel	United States	Record daily precipitation	45.7 mm (1.8 in)	53 of 100 (Notable)
Renmark Irrigation	Australia	Record daily precipitation	54.1 mm (2.1 in)	52 of 100 (Notable)
Veitch	Australia	Record daily precipitation	42.4 mm (1.7 in)	52 of 100 (Notable)
Heathcote Junction	Australia	Record daily precipitation	49.0 mm (1.9 in)	51 of 100 (Notable)
Yunta (Panaramitee)	Australia	Record daily precipitation	29.5 mm (1.2 in)	50 of 100 (Notable)
Wilcannia (Culpaulin)	Australia	Record daily precipitation	29.2 mm (1.1 in)	50 of 100 (Notable)
Kingston on Murray	Australia	Record daily precipitation	35.8 mm (1.4 in)	49 of 100 (Notable)
Caliph Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	49 of 100 (Notable)
Elderslie	Australia	Record daily precipitation	37.3 mm (1.5 in)	49 of 100 (Notable)
Princeton	United States	Record daily precipitation	71.6 mm (2.8 in)	49 of 100 (Notable)
Silverton Post Office	Australia	Record daily precipitation	36.6 mm (1.4 in)	48 of 100 (Notable)
Hawker (Wilson)	Australia	Record daily precipitation	30.0 mm (1.2 in)	47 of 100 (Notable)
Neds Corner	Australia	Record daily precipitation	39.4 mm (1.6 in)	47 of 100 (Notable)
Jaipur	India	Record daily precipitation	120.0 mm (4.7 in)	47 of 100 (Notable)
Umberumberka Reservoir	Australia	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Bunghill Tank	Australia	Record daily precipitation	27.7 mm (1.1 in)	46 of 100 (Notable)
Cadiz Lock E	United States	Record daily precipitation	50.8 mm (2.0 in)	46 of 100 (Notable)
Port Augusta (Yarley)	Australia	Record daily precipitation	32.5 mm (1.3 in)	45 of 100 (Notable)
Cracow Store	Australia	Record daily precipitation	44.5 mm (1.8 in)	45 of 100 (Notable)
Gnomery	Australia	Record daily precipitation	30.5 mm (1.2 in)	45 of 100 (Notable)
Dardanelle	United States	Record daily precipitation	69.1 mm (2.7 in)	45 of 100 (Notable)
Wilkadene (Murtho)	Australia	Record daily precipitation	55.4 mm (2.2 in)	44 of 100 (Notable)
Parilla	Australia	Record daily precipitation	26.2 mm (1.0 in)	44 of 100 (Notable)
Gnalta	Australia	Record daily precipitation	39.4 mm (1.6 in)	44 of 100 (Notable)
Ivanhoe (Wokabity)	Australia	Record daily precipitation	27.9 mm (1.1 in)	44 of 100 (Notable)
Cleve (Pineside)	Australia	Record daily precipitation	29.5 mm (1.2 in)	43 of 100 (Notable)
Hawker (Holowilena)	Australia	Record daily precipitation	33.5 mm (1.3 in)	43 of 100 (Notable)
Moorook	Australia	Record daily precipitation	36.8 mm (1.4 in)	43 of 100 (Notable)
Biloela Dpi	Australia	Record daily precipitation	31.0 mm (1.2 in)	43 of 100 (Notable)
Broken Hill (Patton Street)	Australia	Record daily precipitation	29.5 mm (1.2 in)	43 of 100 (Notable)
Walpa (Danyo)	Australia	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Isseka	Australia	Record daily precipitation	27.9 mm (1.1 in)	42 of 100 (Notable)
Berri Irrigation	Australia	Record daily precipitation	50.8 mm (2.0 in)	42 of 100 (Notable)

Counts by Type and Timescale

724 records

Records set or tied on 27 September 1964 by type: Highest daily maximum 1, Lowest daily maximum 25, Highest daily minimum 25, Lowest daily minimum 60, Heaviest daily rainfall 612, Heaviest daily snowfall 1.

Records on 27 September 1964 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	25
Highest daily minimum	25
Lowest daily minimum	60
Heaviest daily rainfall	612
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 27 September 1964 by timescale: all-time 0, monthly 39, daily 685.

How Much Records Were Beaten By

654 broken records

Margins by which the 654 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 73.3. Ties are not counted.

Top 20 by Significance

27 September 1964

Top 20 records on 27 September 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 September 1964	Blanchetown, AU	daily rain	29.2 mm (1.1 in)	25.4 mm (1.0 in)	69 years	69 of 100 (Major)
27 September 1964	Koomooloo, AU	daily rain	31.2 mm (1.2 in)	26.4 mm (1.0 in)	60 years	63 of 100 (Major)
27 September 1964	Lyrup, AU	daily rain	51.3 mm (2.0 in)	37.8 mm (1.5 in)	58 years	63 of 100 (Major)
27 September 1964	Hawker, AU	daily rain	45.5 mm (1.8 in)	28.2 mm (1.1 in)	58 years	62 of 100 (Major)
27 September 1964	Wanaaring (Yamba), AU	monthly rain	45.2 mm (1.8 in)	18.8 mm (0.7 in)	38 years	62 of 100 (Major)
27 September 1964	Cradock (Kanyaka), AU	daily rain	41.1 mm (1.6 in)	28.4 mm (1.1 in)	58 years	60 of 100 (Major)
27 September 1964	Wilcannia (Billilla), AU	daily rain	34.0 mm (1.3 in)	27.6 mm (1.1 in)	58 years	60 of 100 (Major)
27 September 1964	Canbelego the Hermitage, AU	daily rain	37.1 mm (1.5 in)	32.5 mm (1.3 in)	53 years	60 of 100 (Major)
27 September 1964	Russellville, US	daily rain	83.8 mm (3.3 in)	44.9 mm (1.8 in)	79 years	60 of 100 (Major)
27 September 1964	Hawker (Warcowie), AU	daily rain	43.9 mm (1.7 in)	23.8 mm (0.9 in)	58 years	59 of 100 (Notable)
27 September 1964	Lake Victoria (Cal-Lal), AU	daily rain	37.1 mm (1.5 in)	26.4 mm (1.0 in)	38 years	59 of 100 (Notable)
27 September 1964	Wilcannia (Burndoo Estate), AU	daily rain	31.2 mm (1.2 in)	22.8 mm (0.9 in)	69 years	59 of 100 (Notable)
27 September 1964	Belton (Shadow Vale), AU	monthly rain	55.9 mm (2.2 in)	17.8 mm (0.7 in)	47 years	58 of 100 (Notable)
27 September 1964	Cradock, AU	daily rain	50.8 mm (2.0 in)	36.1 mm (1.4 in)	35 years	57 of 100 (Notable)
27 September 1964	Overland Corner, AU	daily rain	33.0 mm (1.3 in)	22.1 mm (0.9 in)	38 years	57 of 100 (Notable)
27 September 1964	Wallaville- Mill Street, AU	daily rain	87.6 mm (3.4 in)	57.6 mm (2.3 in)	38 years	56 of 100 (Notable)
27 September 1964	Orroroo (Yalpara), AU	daily rain	45.0 mm (1.8 in)	33.1 mm (1.3 in)	35 years	55 of 100 (Notable)
27 September 1964	Yunta, AU	daily rain	32.5 mm (1.3 in)	19.0 mm (0.7 in)	58 years	55 of 100 (Notable)
27 September 1964	Paringa (Beardy Park Farm), AU	daily rain	51.1 mm (2.0 in)	36.4 mm (1.4 in)	38 years	55 of 100 (Notable)
27 September 1964	Clover Creek, AU	daily rain	40.1 mm (1.6 in)	33.5 mm (1.3 in)	29 years	55 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

1799 to 1964

Records set or tied on this calendar date in each year from 1799 to 1964. 1964 had 724 records.

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

Records on 09-27 in each year
Year	Records
1799	1
1828	1
1836	2
1847	1
1851	1
1854	2
1855	2
1859	2
1866	2
1867	3
1874	1
1875	1
1877	2
1880	1
1881	4
1882	1
1885	5
1887	1
1890	3
1891	1
1892	1
1893	1
1894	5
1895	6
1896	1
1897	2
1898	4
1899	1
1900	5
1901	3
1902	12
1903	7
1904	12
1905	21
1906	21
1907	9
1908	36
1909	17
1910	20
1911	31
1912	25
1913	27
1914	24
1915	80
1916	57
1917	41
1918	58
1919	45
1920	54
1921	26
1922	111
1923	125
1924	115
1925	129
1926	581
1927	244
1928	288
1929	225
1930	178
1931	222
1932	194
1933	559
1934	298
1935	319
1936	435
1937	309
1938	366
1939	572
1940	706
1941	257
1942	1,353
1943	503
1944	323
1945	475
1946	387
1947	813
1948	405
1949	407
1950	223
1951	480
1952	539
1953	567
1954	507
1955	386
1956	825
1957	644
1958	585
1959	582
1960	337
1961	376
1962	352
1963	849
1964	724
1965	688
1966	426
1967	502
1968	286
1969	233
1970	773
1971	762
1972	989
1973	1,031
1974	408
1975	790
1976	905
1977	852
1978	773
1979	741
1980	559
1981	680
1982	1,076
1983	791
1984	1,297
1985	661
1986	1,772
1987	1,013
1988	494
1989	852
1990	379
1991	894
1992	659
1993	727
1994	764
1995	698
1996	1,468
1997	730
1998	1,774
1999	1,059
2000	1,031
2001	980
2002	992
2003	830
2004	665
2005	1,061
2006	596
2007	1,091
2008	659
2009	987
2010	1,153
2011	965
2012	624
2013	823
2014	813
2015	664
2016	600
2017	891
2018	600
2019	755
2020	659
2021	893
2022	642
2023	747
2024	1,449
2025	272
2026	358

Download the Data

Data for records on 1964-09-27: 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 10	458
10 to 20	123
20 to 30	49
30 to 40	19
40 to 50	3
50 to 60	1
60 to 70	0
70 to 80	1