Weather Records on 12 September 1974

575 weather records were set or tied worldwide on 12 September 1974. Highest significance: Chugwater, US.

Key Facts for 12 September 1974

On 12 September 1974, 575 weather records were set or tied at long-record stations worldwide.
103 were record highs and 253 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 567 daily.
Chugwater set a daily record snowfall of 17.8 cm (7.0 in) on 12 September 1974.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 412 records.

Record Map

575 stations

575 station records on 12 September 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 September 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chugwater	United States	Record daily snowfall	17.8 cm (7.0 in)	63 of 100 (Major)
Stanley Post Office	Australia	Record daily precipitation	43.4 mm (1.7 in)	61 of 100 (Major)
Campina Grande	Brazil	Record daily precipitation	26.0 mm (1.0 in)	51 of 100 (Notable)
Bethany	United States	Record daily precipitation	95.3 mm (3.8 in)	51 of 100 (Notable)
Wheatland 4N	United States	Record daily snowfall	10.2 cm (4.0 in)	51 of 100 (Notable)
Bellefontaine	United States	Record daily precipitation	56.9 mm (2.2 in)	50 of 100 (Notable)
Walden	United States	Record daily snowfall	10.2 cm (4.0 in)	49 of 100 (Notable)
Harrison	United States	Record daily snowfall	7.6 cm (3.0 in)	47 of 100 (Notable)
Estes Park	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
Princeton	United States	Record daily precipitation	101.6 mm (4.0 in)	46 of 100 (Notable)
Port Hastings	Canada	Record high maximum temperature	26.7 C (80.1 F)	45 of 100 (Notable)
Cape Grim (Woolnorth)	Australia	Record daily precipitation	35.2 mm (1.4 in)	44 of 100 (Notable)
Boulder	United States	Record daily snowfall	6.9 cm (2.7 in)	43 of 100 (Notable)
Palestine	United States	Record daily precipitation	69.3 mm (2.7 in)	43 of 100 (Notable)
Oaklandon Geist Rsvr	United States	Record daily precipitation	66.0 mm (2.6 in)	43 of 100 (Notable)
Agate 3 E	United States	Record daily snowfall	7.6 cm (3.0 in)	43 of 100 (Notable)
Scottsbluff W B Heilig Fld AP	United States	Record daily snowfall	7.6 cm (3.0 in)	43 of 100 (Notable)
Torrington Exp Farm	United States	Record daily snowfall	11.4 cm (4.5 in)	42 of 100 (Notable)
Okay	United States	Record daily precipitation	74.7 mm (2.9 in)	41 of 100 (Notable)
Anderson Wtr Wks	United States	Record daily precipitation	31.2 mm (1.2 in)	41 of 100 (Notable)
Kimball 2NE	United States	Record daily snowfall	5.1 cm (2.0 in)	41 of 100 (Notable)
Leo 6 SW	United States	Record daily snowfall	12.7 cm (5.0 in)	41 of 100 (Notable)
Smithton (Grant Street)	Australia	Record daily precipitation	36.2 mm (1.4 in)	40 of 100 (Notable)
Flora 5 NW	United States	Record daily precipitation	61.0 mm (2.4 in)	40 of 100 (Notable)
Bridgeport	United States	Record daily snowfall	5.1 cm (2.0 in)	40 of 100 (Notable)
Bailey	United States	Record low maximum temperature	8.3 C (46.9 F)	39 of 100 (Notable)
Ft Collins	United States	Record low maximum temperature	8.3 C (46.9 F)	38 of 100 (Notable)
Marion 2 N	United States	Record daily precipitation	42.2 mm (1.7 in)	38 of 100 (Notable)
Cheesman	United States	Record low maximum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Soldier Summit	United States	Record low minimum temperature	-7.8 C (18.0 F)	37 of 100 (Notable)
Hecla	United States	Record daily snowfall	6.4 cm (2.5 in)	37 of 100 (Notable)
Yoder 5 W	United States	Record daily snowfall	10.2 cm (4.0 in)	37 of 100 (Notable)
Harrisburg 12WNW	United States	Record daily snowfall	6.4 cm (2.5 in)	36 of 100 (Notable)
Montreal McGill	Canada	Record high minimum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
El Salto (Smn)	Mexico	Record low minimum temperature	-3.3 C (26.1 F)	35 of 100 (Notable)
Boulder	United States	Record low maximum temperature	12.2 C (54.0 F)	35 of 100 (Notable)
Las Animas	United States	Record low maximum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
King City	United States	Record daily precipitation	80.3 mm (3.2 in)	35 of 100 (Notable)
Deer Lake	Canada	Record daily precipitation	38.1 mm (1.5 in)	34 of 100 (Routine)
Hoopeston	United States	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Summersville 3 SE	United States	Record daily precipitation	43.2 mm (1.7 in)	34 of 100 (Routine)
Fillmore	United States	Record low minimum temperature	-1.1 C (30.0 F)	34 of 100 (Routine)
Guthrie Ctr	United States	Record daily precipitation	37.1 mm (1.5 in)	33 of 100 (Routine)
Kimball 2NE	United States	Record low maximum temperature	11.1 C (52.0 F)	33 of 100 (Routine)
Archer	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Toliman	Mexico	Record low minimum temperature	5.6 C (42.1 F)	32 of 100 (Routine)
Boulder	United States	Record daily precipitation	27.9 mm (1.1 in)	32 of 100 (Routine)
Holyoke	United States	Record low maximum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Abilene	United States	Record low maximum temperature	17.2 C (63.0 F)	32 of 100 (Routine)
Willow Sprg Radio Kuku	United States	Record daily precipitation	26.4 mm (1.0 in)	32 of 100 (Routine)
Kimball 2NE	United States	Record low minimum temperature	0.0 C (32.0 F)	32 of 100 (Routine)
Boulder	United States	Record low minimum temperature	-0.6 C (30.9 F)	31 of 100 (Routine)
Rangely 1E	United States	Record low maximum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Marseilles Lock/Dam	United States	Record daily precipitation	56.1 mm (2.2 in)	31 of 100 (Routine)
Whitestown	United States	Record daily precipitation	35.6 mm (1.4 in)	31 of 100 (Routine)
Beaver Is	United States	Record daily precipitation	33.3 mm (1.3 in)	31 of 100 (Routine)
Lyman	United States	Record daily snowfall	6.4 cm (2.5 in)	31 of 100 (Routine)
W Manchester 3 WSW	United States	Record daily precipitation	44.5 mm (1.8 in)	31 of 100 (Routine)
Utah Lake Lehi	United States	Record low minimum temperature	0.0 C (32.0 F)	31 of 100 (Routine)
Joliet Brandon Road Lock/Dam	United States	Record daily precipitation	48.8 mm (1.9 in)	30 of 100 (Routine)

Counts by Type and Timescale

575 records

Records set or tied on 12 September 1974 by type: Highest daily maximum 32, Lowest daily maximum 157, Highest daily minimum 71, Lowest daily minimum 96, Heaviest daily rainfall 185, Heaviest daily snowfall 31, Deepest snow cover 3.

Records on 12 September 1974 by type
Record type	Records
Highest daily maximum	32
Lowest daily maximum	157
Highest daily minimum	71
Lowest daily minimum	96
Heaviest daily rainfall	185
Heaviest daily snowfall	31
Deepest snow cover	3

Records on 12 September 1974 by timescale: all-time 0, monthly 8, daily 567.

How Much Records Were Beaten By

466 broken records

Margins by which the 466 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

12 September 1974

Top 20 records on 12 September 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 1974	Chugwater, US	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	72 years	63 of 100 (Major)
12 September 1974	Stanley Post Office, AU	daily rain	43.4 mm (1.7 in)	25.9 mm (1.0 in)	37 years	61 of 100 (Major)
12 September 1974	Campina Grande, BR	daily rain	26.0 mm (1.0 in)	14.5 mm (0.6 in)	56 years	51 of 100 (Notable)
12 September 1974	Bethany, US	daily rain	95.3 mm (3.8 in)	53.4 mm (2.1 in)	45 years	51 of 100 (Notable)
12 September 1974	Wheatland 4N, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	78 years	51 of 100 (Notable)
12 September 1974	Bellefontaine, US	daily rain	56.9 mm (2.2 in)	28.5 mm (1.1 in)	56 years	50 of 100 (Notable)
12 September 1974	Walden, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	75 years	49 of 100 (Notable)
12 September 1974	Harrison, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	80 years	47 of 100 (Notable)
12 September 1974	Estes Park, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	64 years	46 of 100 (Notable)
12 September 1974	Princeton, US	daily rain	101.6 mm (4.0 in)	28.2 mm (1.1 in)	75 years	46 of 100 (Notable)
12 September 1974	Port Hastings, CA	daily high max	26.7 C (80.1 F)	2.3 C (4.1 F)	96 years	45 of 100 (Notable)
12 September 1974	Cape Grim (Woolnorth), AU	daily rain	35.2 mm (1.4 in)	13.1 mm (0.5 in)	37 years	44 of 100 (Notable)
12 September 1974	Boulder, US	daily snowfall	6.9 cm (2.7 in)	6.9 cm (2.7 in)	75 years	43 of 100 (Notable)
12 September 1974	Palestine, US	daily rain	69.3 mm (2.7 in)	32.5 mm (1.3 in)	40 years	43 of 100 (Notable)
12 September 1974	Oaklandon Geist Rsvr, US	daily rain	66.0 mm (2.6 in)	48.7 mm (1.9 in)	3 years	43 of 100 (Notable)
12 September 1974	Agate 3 E, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	71 years	43 of 100 (Notable)
12 September 1974	Scottsbluff W B Heilig Fld AP, US	monthly snowfall	7.6 cm (3.0 in)	1.2 cm (0.5 in)	78 years	43 of 100 (Notable)
12 September 1974	Torrington Exp Farm, US	daily snowfall	11.4 cm (4.5 in)	11.4 cm (4.5 in)	52 years	42 of 100 (Notable)
12 September 1974	Okay, US	daily rain	74.7 mm (2.9 in)	52.3 mm (2.1 in)	29 years	41 of 100 (Notable)
12 September 1974	Anderson Wtr Wks, US	daily rain	31.2 mm (1.2 in)	23.6 mm (0.9 in)	60 years	41 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 1974

Records set or tied on this calendar date in each year from 1793 to 1974. 1974 had 575 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 1974-09-12: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 25	424
25 to 50	20
50 to 75	11
75 to 100	4
100 to 125	5
125 to 150	1
150 to 175	0
175 to 200	1