Weather Records on 12 September 1949

512 weather records were set or tied worldwide on 12 September 1949. Highest significance: Ivanhoe (Bonuna), AU.

Key Facts for 12 September 1949

On 12 September 1949, 512 weather records were set or tied at long-record stations worldwide.
38 were record highs and 270 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 4 monthly and 507 daily.
Ivanhoe (Bonuna) set a daily record precipitation of 29.2 mm (1.1 in) on 12 September 1949.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 413 records.

Record Map

512 stations

512 station records on 12 September 1949 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 September 1949: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ivanhoe (Bonuna)	Australia	Record daily precipitation	29.2 mm (1.1 in)	55 of 100 (Notable)
Nikolaev	Ukraine	Record daily precipitation	25.0 mm (1.0 in)	54 of 100 (Notable)
Kalahasti	India	Record daily precipitation	76.2 mm (3.0 in)	52 of 100 (Notable)
Kurdege	India	Record daily precipitation	109.2 mm (4.3 in)	51 of 100 (Notable)
Logan 1 WNW	United States	Record daily precipitation	73.2 mm (2.9 in)	51 of 100 (Notable)
Jaley	India	Record daily precipitation	167.6 mm (6.6 in)	49 of 100 (Notable)
Lamoni	United States	Record daily precipitation	162.1 mm (6.4 in)	49 of 100 (Notable)
Boggabri Post Office	Australia	Record daily precipitation	45.0 mm (1.8 in)	48 of 100 (Notable)
Sullurpet	India	Record daily precipitation	82.0 mm (3.2 in)	48 of 100 (Notable)
Mt Ayr	United States	Record daily precipitation	118.9 mm (4.7 in)	46 of 100 (Notable)
Quirindi Post Office	Australia	Record daily precipitation	53.3 mm (2.1 in)	45 of 100 (Notable)
Salem	United States	Record daily precipitation	65.0 mm (2.6 in)	44 of 100 (Notable)
Kendrapara	India	Record daily precipitation	88.9 mm (3.5 in)	42 of 100 (Notable)
St Louis Eads Brg	United States	Record daily precipitation	77.5 mm (3.1 in)	40 of 100 (Notable)
East Anaconda	United States	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Dinby	Australia	Record daily precipitation	29.7 mm (1.2 in)	38 of 100 (Notable)
Loving	United States	Record daily precipitation	44.2 mm (1.7 in)	38 of 100 (Notable)
Imbil Forestry	Australia	Record daily precipitation	51.1 mm (2.0 in)	36 of 100 (Notable)
Warwick Post Office	Australia	Record daily precipitation	27.7 mm (1.1 in)	36 of 100 (Notable)
Waterloo 6SW	United States	Record daily precipitation	62.2 mm (2.4 in)	36 of 100 (Notable)
Holton	United States	Record daily precipitation	84.3 mm (3.3 in)	36 of 100 (Notable)
Pupri	India	Record daily precipitation	154.9 mm (6.1 in)	35 of 100 (Notable)
Arlington	United States	Record low minimum temperature	-0.6 C (30.9 F)	35 of 100 (Notable)
Effingham 3SW	United States	Record daily precipitation	49.8 mm (2.0 in)	34 of 100 (Routine)
Atchison	United States	Record daily precipitation	102.1 mm (4.0 in)	34 of 100 (Routine)
St Louis St Louis UNIV	United States	Record daily precipitation	63.0 mm (2.5 in)	34 of 100 (Routine)
Port Townsend	United States	Record low minimum temperature	2.2 C (36.0 F)	34 of 100 (Routine)
Killarney Post Office	Australia	Record daily precipitation	26.4 mm (1.0 in)	33 of 100 (Routine)
Hillsdown	Canada	Record low minimum temperature	-11.1 C (12.0 F)	33 of 100 (Routine)
Muswellbrook (Lower Hill St)	Australia	Record daily precipitation	25.9 mm (1.0 in)	31 of 100 (Routine)
Hardy Rs	United States	Record daily snowfall	7.6 cm (3.0 in)	31 of 100 (Routine)
Steveston	Canada	Record low minimum temperature	-1.1 C (30.0 F)	29 of 100 (Routine)
1 N McLeansboro	United States	Record daily precipitation	76.2 mm (3.0 in)	29 of 100 (Routine)
Steffenville	United States	Record daily precipitation	54.1 mm (2.1 in)	29 of 100 (Routine)
Buskala Rch	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
Wynnum Railway Station	Australia	Record daily precipitation	40.6 mm (1.6 in)	28 of 100 (Routine)
Jimbour State School	Australia	Record daily precipitation	32.5 mm (1.3 in)	28 of 100 (Routine)
Wetaskiwin	Canada	Record low minimum temperature	-8.9 C (16.0 F)	28 of 100 (Routine)
Pincher Creek Town	Canada	Record low minimum temperature	-9.4 C (15.1 F)	28 of 100 (Routine)
Tada	India	Record daily precipitation	43.4 mm (1.7 in)	28 of 100 (Routine)
Athipettu	India	Record daily precipitation	39.4 mm (1.6 in)	28 of 100 (Routine)
Mt Vernon 3 NE	United States	Record daily precipitation	52.8 mm (2.1 in)	28 of 100 (Routine)
Pana	United States	Record daily precipitation	51.6 mm (2.0 in)	28 of 100 (Routine)
Rosalia	United States	Record low minimum temperature	-2.2 C (28.0 F)	28 of 100 (Routine)
Kamloops	Canada	Record low minimum temperature	-1.7 C (28.9 F)	27 of 100 (Routine)
Chauradano	India	Record daily precipitation	97.3 mm (3.8 in)	27 of 100 (Routine)
Przhevalsk	Kyrgyzstan	Record daily precipitation	37.2 mm (1.5 in)	27 of 100 (Routine)
Macon	United States	Record daily precipitation	66.3 mm (2.6 in)	27 of 100 (Routine)
Choteau	United States	Record low minimum temperature	-6.7 C (19.9 F)	27 of 100 (Routine)
Medicine Hat A	Canada	Record low minimum temperature	-5.6 C (21.9 F)	26 of 100 (Routine)
Chapleau 2	Canada	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record high minimum temperature	14.3 C (57.7 F)	26 of 100 (Routine)
Wallace	United States	Record low minimum temperature	-2.8 C (27.0 F)	26 of 100 (Routine)
Mt Carmel 4 NW	United States	Record daily precipitation	38.9 mm (1.5 in)	26 of 100 (Routine)
Boone	United States	Record daily precipitation	54.1 mm (2.1 in)	26 of 100 (Routine)
Warrenton 1 N	United States	Record daily precipitation	71.1 mm (2.8 in)	26 of 100 (Routine)
Gillette 3SE	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Elk Point	Canada	Record low minimum temperature	-11.7 C (10.9 F)	25 of 100 (Routine)
Quincy Mem Brg	United States	Record daily precipitation	60.5 mm (2.4 in)	25 of 100 (Routine)
Horton	United States	Record daily precipitation	65.5 mm (2.6 in)	25 of 100 (Routine)

Counts by Type and Timescale

512 records

Records set or tied on 12 September 1949 by type: Highest daily maximum 5, Lowest daily maximum 87, Highest daily minimum 33, Lowest daily minimum 183, Heaviest daily rainfall 192, Heaviest daily snowfall 12.

Records on 12 September 1949 by type
Record type	Records
Highest daily maximum	5
Lowest daily maximum	87
Highest daily minimum	33
Lowest daily minimum	183
Heaviest daily rainfall	192
Heaviest daily snowfall	12
Deepest snow cover	0

Records on 12 September 1949 by timescale: all-time 1, monthly 4, daily 507.

How Much Records Were Beaten By

446 broken records

Margins by which the 446 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 105.1. Ties are not counted.

Top 20 by Significance

12 September 1949

Top 20 records on 12 September 1949 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 1949	Ivanhoe (Bonuna), AU	daily rain	29.2 mm (1.1 in)	20.3 mm (0.8 in)	63 years	55 of 100 (Notable)
12 September 1949	Nikolaev, UA	daily rain	25.0 mm (1.0 in)	21.6 mm (0.9 in)	66 years	54 of 100 (Notable)
12 September 1949	Kalahasti, IN	daily rain	76.2 mm (3.0 in)	64.8 mm (2.6 in)	27 years	52 of 100 (Notable)
12 September 1949	Kurdege, IN	daily rain	109.2 mm (4.3 in)	81.3 mm (3.2 in)	26 years	51 of 100 (Notable)
12 September 1949	Logan 1 WNW, US	daily rain	73.2 mm (2.9 in)	44.2 mm (1.7 in)	40 years	51 of 100 (Notable)
12 September 1949	Jaley, IN	daily rain	167.6 mm (6.6 in)	105.1 mm (4.1 in)	28 years	49 of 100 (Notable)
12 September 1949	Lamoni, US	all-time rain	162.1 mm (6.4 in)	33.1 mm (1.3 in)	7 years	49 of 100 (Notable)
12 September 1949	Boggabri Post Office, AU	daily rain	45.0 mm (1.8 in)	24.7 mm (1.0 in)	49 years	48 of 100 (Notable)
12 September 1949	Sullurpet, IN	daily rain	82.0 mm (3.2 in)	56.3 mm (2.2 in)	47 years	48 of 100 (Notable)
12 September 1949	Mt Ayr, US	daily rain	118.9 mm (4.7 in)	57.4 mm (2.3 in)	20 years	46 of 100 (Notable)
12 September 1949	Quirindi Post Office, AU	daily rain	53.3 mm (2.1 in)	33.0 mm (1.3 in)	14 years	45 of 100 (Notable)
12 September 1949	Salem, US	daily rain	65.0 mm (2.6 in)	41.1 mm (1.6 in)	28 years	44 of 100 (Notable)
12 September 1949	Kendrapara, IN	daily rain	88.9 mm (3.5 in)	50.8 mm (2.0 in)	35 years	42 of 100 (Notable)
12 September 1949	St Louis Eads Brg, US	daily rain	77.5 mm (3.1 in)	49.3 mm (1.9 in)	6 years	40 of 100 (Notable)
12 September 1949	East Anaconda, US	daily snowfall	10.2 cm (4.0 in)	8.2 cm (3.2 in)	28 years	39 of 100 (Notable)
12 September 1949	Dinby, AU	daily rain	29.7 mm (1.2 in)	16.7 mm (0.7 in)	56 years	38 of 100 (Notable)
12 September 1949	Loving, US	daily rain	44.2 mm (1.7 in)	36.8 mm (1.4 in)	24 years	38 of 100 (Notable)
12 September 1949	Imbil Forestry, AU	daily rain	51.1 mm (2.0 in)	36.6 mm (1.4 in)	11 years	36 of 100 (Notable)
12 September 1949	Warwick Post Office, AU	daily rain	27.7 mm (1.1 in)	14.2 mm (0.6 in)	49 years	36 of 100 (Notable)
12 September 1949	Waterloo 6SW, US	daily rain	62.2 mm (2.4 in)	28.7 mm (1.1 in)	36 years	36 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

1793 to 1949

Records set or tied on this calendar date in each year from 1793 to 1949. 1949 had 512 records.

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

Records on 09-12 in each year
Year	Records
1793	2
1809	1
1813	1
1814	2
1834	1
1837	2
1839	1
1847	1
1848	1
1854	4
1859	2
1860	2
1865	2
1866	1
1867	1
1868	2
1869	1
1872	2
1876	1
1878	1
1880	1
1881	1
1882	1
1884	2
1885	2
1886	1
1887	2
1888	2
1889	1
1891	4
1892	1
1893	4
1894	1
1895	5
1896	2
1897	3
1898	3
1899	4
1900	1
1901	5
1902	11
1903	18
1904	7
1905	8
1906	24
1907	11
1908	12
1909	11
1910	4
1911	15
1912	20
1913	12
1914	49
1915	71
1916	21
1917	231
1918	42
1919	69
1920	49
1921	60
1922	136
1923	33
1924	177
1925	443
1926	89
1927	339
1928	155
1929	118
1930	198
1931	648
1932	199
1933	360
1934	176
1935	441
1936	515
1937	318
1938	332
1939	702
1940	891
1941	172
1942	337
1943	544
1944	393
1945	414
1946	302
1947	596
1948	292
1949	512
1950	578
1951	399
1952	575
1953	515
1954	313
1955	457
1956	389
1957	727
1958	783
1959	536
1960	772
1961	750
1962	407
1963	466
1964	836
1965	459
1966	416
1967	510
1968	428
1969	558
1970	619
1971	593
1972	430
1973	588
1974	575
1975	1,102
1976	539
1977	524
1978	952
1979	765
1980	511
1981	424
1982	993
1983	915
1984	700
1985	876
1986	787
1987	686
1988	997
1989	1,313
1990	1,001
1991	672
1992	767
1993	798
1994	550
1995	532
1996	1,014
1997	737
1998	1,770
1999	938
2000	1,188
2001	797
2002	883
2003	830
2004	653
2005	1,032
2006	963
2007	776
2008	1,213
2009	876
2010	939
2011	988
2012	639
2013	1,066
2014	1,374
2015	704
2016	748
2017	1,114
2018	595
2019	884
2020	566
2021	513
2022	739
2023	844
2024	1,009
2025	433
2026	627

Download the Data

Data for records on 1949-09-12: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	398
20 to 40	30
40 to 60	12
60 to 80	3
80 to 100	2
100 to 120	1