Weather Records on 11 August 1974

596 weather records were set or tied worldwide on 11 August 1974. Highest significance: Francis, CA.

Key Facts for 11 August 1974

On 11 August 1974, 596 weather records were set or tied at long-record stations worldwide.
64 were record highs and 297 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 11 monthly and 584 daily.
Francis set a daily record precipitation of 40.9 mm (1.6 in) on 11 August 1974.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 460 records.

Record Map

596 stations

596 station records on 11 August 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Francis	Canada	Record daily precipitation	40.9 mm (1.6 in)	58 of 100 (Notable)
Watertown Rgnl AP	United States	Record daily precipitation	42.2 mm (1.7 in)	57 of 100 (Notable)
Cruz Do Espirito Santo	Brazil	Record daily precipitation	60.5 mm (2.4 in)	53 of 100 (Notable)
Gonvick 2 W	United States	Record daily precipitation	115.6 mm (4.6 in)	53 of 100 (Notable)
Rainier Paradise Rs	United States	Record snow depth	73.7 cm (29.0 in)	52 of 100 (Notable)
Chester	United States	Record daily precipitation	28.7 mm (1.1 in)	51 of 100 (Notable)
Eastland	United States	Record daily precipitation	56.1 mm (2.2 in)	51 of 100 (Notable)
Szeged	Hungary	Record daily precipitation	33.5 mm (1.3 in)	50 of 100 (Notable)
Brownwood 2NE	United States	Record daily precipitation	48.3 mm (1.9 in)	49 of 100 (Notable)
Yorkton A	Canada	Record daily precipitation	52.1 mm (2.1 in)	48 of 100 (Notable)
Weatherford	United States	Record daily precipitation	78.5 mm (3.1 in)	47 of 100 (Notable)
Adak AP	United States	Record daily precipitation	43.2 mm (1.7 in)	42 of 100 (Notable)
Farias Brito	Brazil	Record daily precipitation	38.0 mm (1.5 in)	40 of 100 (Notable)
Valley City 3 NNW	United States	Record low maximum temperature	16.7 C (62.1 F)	40 of 100 (Notable)
Gettysburg	United States	Record low maximum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Brazos	United States	Record daily precipitation	34.8 mm (1.4 in)	40 of 100 (Notable)
Ft Collins	United States	Record low minimum temperature	5.6 C (42.1 F)	39 of 100 (Notable)
Wauchula	United States	Record daily precipitation	66.0 mm (2.6 in)	39 of 100 (Notable)
Blackleaf	United States	Record low maximum temperature	10.0 C (50.0 F)	39 of 100 (Notable)
Rantoul	United States	Record daily precipitation	63.2 mm (2.5 in)	39 of 100 (Notable)
Toliman	Mexico	Record low minimum temperature	5.0 C (41.0 F)	38 of 100 (Notable)
Barguzin	Russia	Record high minimum temperature	21.3 C (70.3 F)	38 of 100 (Notable)
Clinton	United States	Record low minimum temperature	4.4 C (39.9 F)	38 of 100 (Notable)
Hoopeston	United States	Record daily precipitation	59.4 mm (2.3 in)	37 of 100 (Notable)
Munfordville 5 NW	United States	Record daily precipitation	58.9 mm (2.3 in)	37 of 100 (Notable)
Springview 2NW	United States	Record low maximum temperature	17.8 C (64.0 F)	37 of 100 (Notable)
Forman 5 SSE	United States	Record low maximum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Spearfish	United States	Record daily precipitation	31.0 mm (1.2 in)	37 of 100 (Notable)
Archer City 2W	United States	Record daily precipitation	31.5 mm (1.2 in)	37 of 100 (Notable)
Midland 4 ENE	United States	Record daily precipitation	37.3 mm (1.5 in)	37 of 100 (Notable)
Paint Rock	United States	Record daily precipitation	53.8 mm (2.1 in)	37 of 100 (Notable)
Palestina (Smn)	Mexico	Record daily precipitation	97.8 mm (3.9 in)	36 of 100 (Notable)
Fleming	United States	Record daily precipitation	80.0 mm (3.1 in)	36 of 100 (Notable)
Lincoln	United States	Record daily precipitation	70.9 mm (2.8 in)	36 of 100 (Notable)
Grand Junction Walker Fld	United States	Record low minimum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Delta	United States	Record low minimum temperature	3.9 C (39.0 F)	35 of 100 (Notable)
Gunnison 3SW	United States	Record low minimum temperature	-1.7 C (28.9 F)	35 of 100 (Notable)
Stonington	United States	Record daily precipitation	26.4 mm (1.0 in)	35 of 100 (Notable)
Fayette 4 SW	United States	Record daily precipitation	45.7 mm (1.8 in)	35 of 100 (Notable)
Kimball 2NE	United States	Record low maximum temperature	17.8 C (64.0 F)	35 of 100 (Notable)
Allardt	United States	Record daily precipitation	50.3 mm (2.0 in)	35 of 100 (Notable)
Graham	United States	Record low maximum temperature	25.6 C (78.1 F)	35 of 100 (Notable)
Lyons River	Australia	Record daily precipitation	28.0 mm (1.1 in)	34 of 100 (Routine)
Husum	Germany	Record daily precipitation	43.2 mm (1.7 in)	34 of 100 (Routine)
Chama	United States	Record low minimum temperature	3.9 C (39.0 F)	34 of 100 (Routine)
Stephenville Clark Fld	United States	Record daily precipitation	43.2 mm (1.7 in)	34 of 100 (Routine)
Harrington Harbour	Canada	Record high maximum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
Beaver Is	United States	Record high minimum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Ogallala	United States	Record low minimum temperature	6.7 C (44.1 F)	33 of 100 (Routine)
Eastland	United States	Record low maximum temperature	28.3 C (82.9 F)	33 of 100 (Routine)
Spokane Intl AP	United States	Record low minimum temperature	7.2 C (45.0 F)	33 of 100 (Routine)
Pekisko	Canada	Record daily precipitation	39.6 mm (1.6 in)	32 of 100 (Routine)
Boulder	United States	Record low minimum temperature	8.3 C (46.9 F)	32 of 100 (Routine)
Choteau	United States	Record low maximum temperature	16.1 C (61.0 F)	32 of 100 (Routine)
Cimarron 4 SW	United States	Record low minimum temperature	6.1 C (43.0 F)	32 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record daily precipitation	28.2 mm (1.1 in)	32 of 100 (Routine)
Antoine 1 SW	United States	Record daily precipitation	65.3 mm (2.6 in)	31 of 100 (Routine)
Crested Butte	United States	Record low minimum temperature	-5.0 C (23.0 F)	31 of 100 (Routine)
Independence	United States	Record daily precipitation	40.1 mm (1.6 in)	31 of 100 (Routine)
Darrouzett	United States	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)

Counts by Type and Timescale

596 records

Records set or tied on 11 August 1974 by type: Highest daily maximum 28, Lowest daily maximum 144, Highest daily minimum 36, Lowest daily minimum 153, Heaviest daily rainfall 234, Deepest snow cover 1.

Records on 11 August 1974 by type
Record type	Records
Highest daily maximum	28
Lowest daily maximum	144
Highest daily minimum	36
Lowest daily minimum	153
Heaviest daily rainfall	234
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 11 August 1974 by timescale: all-time 1, monthly 11, daily 584.

How Much Records Were Beaten By

463 broken records

Margins by which the 463 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 737.0. Ties are not counted.

Top 20 by Significance

11 August 1974

Top 20 records on 11 August 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 1974	Francis, CA	daily rain	40.9 mm (1.6 in)	36.3 mm (1.4 in)	44 years	58 of 100 (Notable)
11 August 1974	Watertown Rgnl AP, US	daily rain	42.2 mm (1.7 in)	32.0 mm (1.3 in)	73 years	57 of 100 (Notable)
11 August 1974	Cruz Do Espirito Santo, BR	daily rain	60.5 mm (2.4 in)	40.1 mm (1.6 in)	56 years	53 of 100 (Notable)
11 August 1974	Gonvick 2 W, US	all-time rain	115.6 mm (4.6 in)	23.1 mm (0.9 in)	34 years	53 of 100 (Notable)
11 August 1974	Rainier Paradise Rs, US	daily snow depth	73.7 cm (29.0 in)	73.7 cm (29.0 in)	25 years	52 of 100 (Notable)
11 August 1974	Chester, US	daily rain	28.7 mm (1.1 in)	16.0 mm (0.6 in)	73 years	51 of 100 (Notable)
11 August 1974	Eastland, US	daily rain	56.1 mm (2.2 in)	37.0 mm (1.5 in)	60 years	51 of 100 (Notable)
11 August 1974	Szeged, HU	daily rain	33.5 mm (1.3 in)	17.0 mm (0.7 in)	72 years	50 of 100 (Notable)
11 August 1974	Brownwood 2NE, US	daily rain	48.3 mm (1.9 in)	31.8 mm (1.3 in)	64 years	49 of 100 (Notable)
11 August 1974	Yorkton A, CA	daily rain	52.1 mm (2.1 in)	46.8 mm (1.8 in)	16 years	48 of 100 (Notable)
11 August 1974	Weatherford, US	daily rain	78.5 mm (3.1 in)	33.0 mm (1.3 in)	60 years	47 of 100 (Notable)
11 August 1974	Adak AP, US	daily rain	43.2 mm (1.7 in)	26.7 mm (1.1 in)	24 years	42 of 100 (Notable)
11 August 1974	Farias Brito, BR	monthly rain	38.0 mm (1.5 in)	4.6 mm (0.18 in)	60 years	40 of 100 (Notable)
11 August 1974	Valley City 3 NNW, US	daily low max	16.7 C (62.1 F)	4.4 C (7.9 F)	77 years	40 of 100 (Notable)
11 August 1974	Gettysburg, US	daily low max	15.6 C (60.1 F)	6.1 C (11.0 F)	71 years	40 of 100 (Notable)
11 August 1974	Brazos, US	daily rain	34.8 mm (1.4 in)	31.8 mm (1.3 in)	60 years	40 of 100 (Notable)
11 August 1974	Ft Collins, US	daily low min	5.6 C (42.1 F)	2.2 C (4.0 F)	80 years	39 of 100 (Notable)
11 August 1974	Wauchula, US	daily rain	66.0 mm (2.6 in)	33.7 mm (1.3 in)	40 years	39 of 100 (Notable)
11 August 1974	Blackleaf, US	daily low max	10.0 C (50.0 F)	7.8 C (14.0 F)	61 years	39 of 100 (Notable)
11 August 1974	Rantoul, US	daily rain	63.2 mm (2.5 in)	29.9 mm (1.2 in)	28 years	39 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 596 records.

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

Records on 08-11 in each year
Year	Records
1793	1
1796	1
1811	1
1815	2
1838	1
1839	1
1841	1
1851	1
1855	1
1858	1
1861	2
1862	1
1863	1
1864	6
1865	1
1866	6
1869	4
1871	1
1875	1
1879	2
1881	1
1883	1
1885	1
1888	1
1889	4
1890	4
1891	1
1892	4
1893	1
1894	1
1895	2
1896	5
1897	3
1898	2
1899	3
1900	4
1901	4
1902	13
1903	12
1904	19
1905	9
1906	6
1907	8
1908	10
1909	41
1910	9
1911	24
1912	46
1913	43
1914	26
1915	27
1916	64
1917	217
1918	29
1919	18
1920	54
1921	201
1922	98
1923	80
1924	149
1925	219
1926	140
1927	190
1928	174
1929	354
1930	471
1931	453
1932	281
1933	416
1934	620
1935	499
1936	541
1937	356
1938	315
1939	389
1940	359
1941	807
1942	390
1943	345
1944	936
1945	401
1946	419
1947	709
1948	306
1949	471
1950	320
1951	296
1952	417
1953	283
1954	536
1955	319
1956	457
1957	305
1958	494
1959	337
1960	461
1961	429
1962	662
1963	493
1964	677
1965	793
1966	1,037
1967	1,071
1968	619
1969	533
1970	526
1971	711
1972	823
1973	451
1974	596
1975	753
1976	529
1977	845
1978	433
1979	797
1980	929
1981	645
1982	1,232
1983	1,095
1984	822
1985	804
1986	563
1987	885
1988	1,119
1989	983
1990	760
1991	822
1992	928
1993	840
1994	1,173
1995	1,324
1996	1,147
1997	1,512
1998	1,232
1999	1,152
2000	924
2001	811
2002	1,152
2003	1,601
2004	1,478
2005	1,031
2006	896
2007	1,428
2008	945
2009	836
2010	2,289
2011	1,106
2012	953
2013	470
2014	556
2015	696
2016	1,340
2017	619
2018	861
2019	758
2020	688
2021	834
2022	661
2023	757
2024	643
2025	722
2026	765

Download the Data

Data for records on 1974-08-11: 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 100	462
100 to 200	0
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	0
700 to 800	1