Weather Records on 21 July 1974

536 weather records were set or tied worldwide on 21 July 1974. Highest significance: Winnibigoshish Dam, US.

Key Facts for 21 July 1974

On 21 July 1974, 536 weather records were set or tied at long-record stations worldwide.
194 were record highs and 204 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 12 monthly and 521 daily.
Winnibigoshish Dam set a daily record precipitation of 68.6 mm (2.7 in) on 21 July 1974.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 466 records.

Record Map

536 stations

536 station records on 21 July 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Winnibigoshish Dam	United States	Record daily precipitation	68.6 mm (2.7 in)	56 of 100 (Notable)
Grand Rapids Forestry Lab	United States	Record daily precipitation	81.8 mm (3.2 in)	51 of 100 (Notable)
Meadowlands 9 S	United States	Record daily precipitation	83.6 mm (3.3 in)	51 of 100 (Notable)
Izmail	Ukraine	Record daily precipitation	58.9 mm (2.3 in)	50 of 100 (Notable)
Breckenridge	United States	Record daily precipitation	46.2 mm (1.8 in)	50 of 100 (Notable)
Hillsboro 3 N	United States	Record daily precipitation	99.1 mm (3.9 in)	50 of 100 (Notable)
Kettering (Saddle Road)	Australia	Record daily precipitation	28.0 mm (1.1 in)	47 of 100 (Notable)
Suldalsvatn	Norway	Record daily precipitation	42.4 mm (1.7 in)	46 of 100 (Notable)
Bucuresti Filaret	Romania	Record daily precipitation	29.3 mm (1.2 in)	44 of 100 (Notable)
Leupp	United States	Record daily precipitation	38.4 mm (1.5 in)	44 of 100 (Notable)
Calarasi	Romania	Record daily precipitation	53.4 mm (2.1 in)	42 of 100 (Notable)
Tambov	Russia	Record daily precipitation	32.6 mm (1.3 in)	42 of 100 (Notable)
Covington 8 WNW	United States	Record daily precipitation	71.6 mm (2.8 in)	40 of 100 (Notable)
Menard	United States	Record low minimum temperature	13.9 C (57.0 F)	40 of 100 (Notable)
Briksdal	Norway	Record daily precipitation	25.6 mm (1.0 in)	38 of 100 (Notable)
Red Oak	United States	Record high maximum temperature	42.8 C (109.0 F)	38 of 100 (Notable)
Sidney 1SSE	United States	Record high maximum temperature	42.8 C (109.0 F)	37 of 100 (Notable)
New Iberia AP - Acadiana Rgnl	United States	Record high minimum temperature	26.1 C (79.0 F)	37 of 100 (Notable)
Soldier Summit	United States	Record daily precipitation	64.0 mm (2.5 in)	37 of 100 (Notable)
Yankalilla (Inman Valley)	Australia	Record daily precipitation	28.0 mm (1.1 in)	36 of 100 (Notable)
Harrington Harbour	Canada	Record low maximum temperature	8.9 C (48.0 F)	36 of 100 (Notable)
Greenfield	United States	Record high maximum temperature	41.1 C (106.0 F)	36 of 100 (Notable)
Rodeo (Smn)	Mexico	Record low maximum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Montemorelos	Mexico	Record low minimum temperature	17.8 C (64.0 F)	34 of 100 (Routine)
Alice	United States	Record low minimum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
Leo 6 SW	United States	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Hatteras	United States	Record low maximum temperature	26.1 C (79.0 F)	34 of 100 (Routine)
Bad Reichenhall	Germany	Record daily precipitation	49.9 mm (2.0 in)	33 of 100 (Routine)
Akron Washington Co AP	United States	Record daily precipitation	58.4 mm (2.3 in)	33 of 100 (Routine)
Gellibrand River West	Australia	Record daily precipitation	32.0 mm (1.3 in)	32 of 100 (Routine)
Brusque (Pcd)	Brazil	Record daily precipitation	39.7 mm (1.6 in)	32 of 100 (Routine)
Dequeen	United States	Record high maximum temperature	40.6 C (105.1 F)	32 of 100 (Routine)
Port Campbell Post Office	Australia	Record daily precipitation	27.2 mm (1.1 in)	31 of 100 (Routine)
Caveside	Australia	Record daily precipitation	39.0 mm (1.5 in)	31 of 100 (Routine)
Timbo Novo (Pcd)	Brazil	Record daily precipitation	58.1 mm (2.3 in)	31 of 100 (Routine)
Botnen I Forde	Norway	Record daily precipitation	38.6 mm (1.5 in)	31 of 100 (Routine)
Benson	United States	Record low minimum temperature	10.6 C (51.1 F)	31 of 100 (Routine)
Luverne	United States	Record high maximum temperature	36.1 C (97.0 F)	31 of 100 (Routine)
Biskra	Algeria	Record low maximum temperature	34.0 C (93.2 F)	30 of 100 (Routine)
Sand I Ryfylke II	Norway	Record daily precipitation	66.9 mm (2.6 in)	30 of 100 (Routine)
Kargopol	Russia	Record high minimum temperature	16.9 C (62.4 F)	30 of 100 (Routine)
Osceola	United States	Record high maximum temperature	41.1 C (106.0 F)	30 of 100 (Routine)
Leavenworth	United States	Record high maximum temperature	41.7 C (107.1 F)	30 of 100 (Routine)
Appleton City	United States	Record high maximum temperature	42.2 C (108.0 F)	30 of 100 (Routine)
Mayville	United States	Record daily precipitation	108.0 mm (4.3 in)	30 of 100 (Routine)
Newport News Press Bld	United States	Record low minimum temperature	15.6 C (60.1 F)	30 of 100 (Routine)
Hatteras	United States	Record low minimum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Sarajevo	Bosnia and Herzegovina	Record low maximum temperature	12.9 C (55.2 F)	29 of 100 (Routine)
Arvida	Canada	Record low minimum temperature	4.4 C (39.9 F)	29 of 100 (Routine)
Salamanca	Mexico	Record low minimum temperature	10.6 C (51.1 F)	29 of 100 (Routine)
Yates Ctr	United States	Record high minimum temperature	23.3 C (73.9 F)	29 of 100 (Routine)
Seward	United States	Record high maximum temperature	41.7 C (107.1 F)	29 of 100 (Routine)
Chaco Canyon Natl Mon	United States	Record low maximum temperature	26.7 C (80.1 F)	29 of 100 (Routine)
Plymouth-Kingston	United States	Record low minimum temperature	5.6 C (42.1 F)	28 of 100 (Routine)
Northern Gully	Australia	Record daily precipitation	28.4 mm (1.1 in)	27 of 100 (Routine)
Arecibo 3 ESE	Puerto Rico [United States]	Record low minimum temperature	19.4 C (66.9 F)	27 of 100 (Routine)
Tucson Magnetic Obsy	United States	Record low maximum temperature	27.8 C (82.0 F)	27 of 100 (Routine)
Wickenburg	United States	Record low maximum temperature	33.9 C (93.0 F)	27 of 100 (Routine)
Bolivar	United States	Record low minimum temperature	2.2 C (36.0 F)	27 of 100 (Routine)
Harlingen	United States	Record low minimum temperature	20.6 C (69.1 F)	27 of 100 (Routine)

Counts by Type and Timescale

536 records

Records set or tied on 21 July 1974 by type: Highest daily maximum 138, Lowest daily maximum 61, Highest daily minimum 56, Lowest daily minimum 143, Heaviest daily rainfall 137, Deepest snow cover 1.

Records on 21 July 1974 by type
Record type	Records
Highest daily maximum	138
Lowest daily maximum	61
Highest daily minimum	56
Lowest daily minimum	143
Heaviest daily rainfall	137
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 21 July 1974 by timescale: all-time 3, monthly 12, daily 521.

How Much Records Were Beaten By

377 broken records

Margins by which the 377 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 915.0. Ties are not counted.

Top 20 by Significance

21 July 1974

Top 20 records on 21 July 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1974	Winnibigoshish Dam, US	daily rain	68.6 mm (2.7 in)	38.1 mm (1.5 in)	64 years	56 of 100 (Notable)
21 July 1974	Grand Rapids Forestry Lab, US	daily rain	81.8 mm (3.2 in)	56.4 mm (2.2 in)	19 years	51 of 100 (Notable)
21 July 1974	Meadowlands 9 S, US	daily rain	83.6 mm (3.3 in)	53.1 mm (2.1 in)	19 years	51 of 100 (Notable)
21 July 1974	Izmail, UA	daily rain	58.9 mm (2.3 in)	49.5 mm (1.9 in)	8 years	50 of 100 (Notable)
21 July 1974	Breckenridge, US	daily rain	46.2 mm (1.8 in)	35.0 mm (1.4 in)	9 years	50 of 100 (Notable)
21 July 1974	Hillsboro 3 N, US	daily rain	99.1 mm (3.9 in)	70.9 mm (2.8 in)	12 years	50 of 100 (Notable)
21 July 1974	Kettering (Saddle Road), AU	daily rain	28.0 mm (1.1 in)	17.3 mm (0.7 in)	63 years	47 of 100 (Notable)
21 July 1974	Suldalsvatn, NO	daily rain	42.4 mm (1.7 in)	23.7 mm (0.9 in)	29 years	46 of 100 (Notable)
21 July 1974	Bucuresti Filaret, RO	daily rain	29.3 mm (1.2 in)	13.2 mm (0.5 in)	74 years	44 of 100 (Notable)
21 July 1974	Leupp, US	daily rain	38.4 mm (1.5 in)	21.9 mm (0.9 in)	28 years	44 of 100 (Notable)
21 July 1974	Calarasi, RO	daily rain	53.4 mm (2.1 in)	39.9 mm (1.6 in)	20 years	42 of 100 (Notable)
21 July 1974	Tambov, RU	daily rain	32.6 mm (1.3 in)	22.9 mm (0.9 in)	29 years	42 of 100 (Notable)
21 July 1974	Covington 8 WNW, US	daily rain	71.6 mm (2.8 in)	16.5 mm (0.6 in)	78 years	40 of 100 (Notable)
21 July 1974	Menard, US	daily low min	13.9 C (57.0 F)	2.8 C (5.0 F)	69 years	40 of 100 (Notable)
21 July 1974	Briksdal, NO	daily rain	25.6 mm (1.0 in)	4.5 mm (0.18 in)	77 years	38 of 100 (Notable)
21 July 1974	Red Oak, US	all-time high max	42.8 C (109.0 F)	0.6 C (1.1 F)	33 years	38 of 100 (Notable)
21 July 1974	Sidney 1SSE, US	all-time high max	42.8 C (109.0 F)	1.1 C (2.0 F)	20 years	37 of 100 (Notable)
21 July 1974	New Iberia AP - Acadiana Rgnl, US	daily high min	26.1 C (79.0 F)	1.1 C (2.0 F)	74 years	37 of 100 (Notable)
21 July 1974	Soldier Summit, US	monthly rain	64.0 mm (2.5 in)	9.1 mm (0.36 in)	18 years	37 of 100 (Notable)
21 July 1974	Yankalilla (Inman Valley), AU	daily rain	28.0 mm (1.1 in)	14.5 mm (0.6 in)	40 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

1794 to 1974

Records set or tied on this calendar date in each year from 1794 to 1974. 1974 had 536 records.

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

Records on 07-21 in each year
Year	Records
1794	1
1795	1
1796	1
1797	1
1813	2
1832	2
1837	1
1839	1
1843	1
1844	2
1854	1
1859	3
1865	3
1868	3
1872	1
1876	1
1879	2
1880	1
1881	1
1884	1
1885	1
1886	2
1888	2
1889	3
1890	2
1892	3
1893	3
1894	3
1895	1
1896	3
1897	4
1898	7
1899	2
1900	6
1901	13
1902	12
1903	10
1904	8
1905	13
1906	13
1907	12
1908	25
1909	18
1910	12
1911	37
1912	52
1913	41
1914	48
1915	81
1916	72
1917	136
1918	130
1919	51
1920	33
1921	55
1922	48
1923	132
1924	286
1925	202
1926	401
1927	191
1928	205
1929	360
1930	521
1931	549
1932	322
1933	208
1934	965
1935	236
1936	322
1937	253
1938	638
1939	415
1940	318
1941	226
1942	318
1943	253
1944	716
1945	300
1946	398
1947	795
1948	403
1949	603
1950	662
1951	427
1952	657
1953	351
1954	656
1955	582
1956	490
1957	447
1958	531
1959	940
1960	651
1961	388
1962	263
1963	470
1964	457
1965	748
1966	626
1967	313
1968	334
1969	636
1970	1,241
1971	475
1972	1,046
1973	871
1974	536
1975	380
1976	477
1977	708
1978	1,155
1979	964
1980	926
1981	1,352
1982	588
1983	1,234
1984	764
1985	554
1986	791
1987	1,025
1988	1,015
1989	973
1990	914
1991	812
1992	1,562
1993	866
1994	773
1995	1,247
1996	1,141
1997	849
1998	1,674
1999	814
2000	1,230
2001	889
2002	990
2003	1,250
2004	694
2005	1,420
2006	1,479
2007	1,145
2008	989
2009	1,306
2010	1,148
2011	1,414
2012	815
2013	526
2014	762
2015	704
2016	645
2017	433
2018	942
2019	755
2020	363
2021	574
2022	866
2023	816
2024	873
2025	881
2026	874

Download the Data

Data for records on 1974-07-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 200	376
200 to 400	0
400 to 600	0
600 to 800	0
800 to 1000	1