Weather Records on 21 October 1974

866 weather records were set or tied worldwide on 21 October 1974. Highest significance: Boolathana, AU.

Key Facts for 21 October 1974

On 21 October 1974, 866 weather records were set or tied at long-record stations worldwide.
103 were record highs and 519 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 48 monthly and 817 daily.
Boolathana set a monthly record daily precipitation of 45.8 mm (1.8 in) on 21 October 1974.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 417 records.

Record Map

866 stations

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

Weather records on 21 October 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Boolathana	Australia	Record daily precipitation	45.8 mm (1.8 in)	74 of 100 (Major)
Winderie	Australia	Record daily precipitation	106.0 mm (4.2 in)	74 of 100 (Major)
Koordarrie	Australia	Record daily precipitation	71.9 mm (2.8 in)	68 of 100 (Major)
Wien	Austria	Record daily precipitation	54.8 mm (2.2 in)	58 of 100 (Notable)
Davenport Downs Station	Australia	Record daily precipitation	45.0 mm (1.8 in)	51 of 100 (Notable)
Indore	India	Record daily precipitation	37.1 mm (1.5 in)	51 of 100 (Notable)
Exmouth Gulf	Australia	Record daily precipitation	63.5 mm (2.5 in)	50 of 100 (Notable)
Nogales	United States	Record daily precipitation	25.7 mm (1.0 in)	48 of 100 (Notable)
Driggs	United States	Record daily snowfall	10.2 cm (4.0 in)	47 of 100 (Notable)
Hiasen I Sigdal	Norway	Record snow depth	37.0 cm (14.6 in)	45 of 100 (Notable)
Tanana AP	United States	Record snow depth	33.0 cm (13.0 in)	45 of 100 (Notable)
Feldberg/Schwarzwald	Germany	Record snow depth	62.0 cm (24.4 in)	41 of 100 (Notable)
Emu Creek Station	Australia	Record daily precipitation	27.8 mm (1.1 in)	39 of 100 (Notable)
Pesaro	Italy	Record daily precipitation	48.7 mm (1.9 in)	39 of 100 (Notable)
Bjornholt	Norway	Record snow depth	23.0 cm (9.1 in)	39 of 100 (Notable)
Boskoop	Netherlands	Record daily precipitation	30.7 mm (1.2 in)	38 of 100 (Notable)
Leiden	Netherlands	Record daily precipitation	31.2 mm (1.2 in)	38 of 100 (Notable)
Ionia 2SSW	United States	Record low minimum temperature	-7.8 C (18.0 F)	38 of 100 (Notable)
Bareilly	India	Record daily precipitation	110.0 mm (4.3 in)	37 of 100 (Notable)
Santander Centro	Spain	Record daily precipitation	62.6 mm (2.5 in)	37 of 100 (Notable)
Sugar City	United States	Record daily snowfall	7.6 cm (3.0 in)	37 of 100 (Notable)
Vevay	United States	Record low minimum temperature	-4.4 C (24.1 F)	37 of 100 (Notable)
Yakutat AP	United States	Record daily precipitation	114.8 mm (4.5 in)	37 of 100 (Notable)
Gijon la Merced	Spain	Record daily precipitation	57.2 mm (2.3 in)	36 of 100 (Notable)
Glenville	United States	Record low maximum temperature	7.2 C (45.0 F)	36 of 100 (Notable)
Hightstown 2 W	United States	Record low maximum temperature	6.7 C (44.1 F)	35 of 100 (Notable)
State College	United States	Record low maximum temperature	4.4 C (39.9 F)	35 of 100 (Notable)
Porto Firme	Brazil	Record daily precipitation	60.1 mm (2.4 in)	34 of 100 (Routine)
Peterboro 2 S	United States	Record low maximum temperature	2.8 C (37.0 F)	34 of 100 (Routine)
Port Jervis	United States	Record low maximum temperature	5.6 C (42.1 F)	34 of 100 (Routine)
Atlantic City Marina	United States	Record low maximum temperature	7.8 C (46.0 F)	34 of 100 (Routine)
Lunner	Norway	Record snow depth	18.0 cm (7.1 in)	33 of 100 (Routine)
Bridgeville 1 NW	United States	Record low maximum temperature	8.9 C (48.0 F)	33 of 100 (Routine)
Woodstock	United States	Record low maximum temperature	8.3 C (46.9 F)	33 of 100 (Routine)
Warsaw 2 NW	United States	Record low maximum temperature	9.4 C (48.9 F)	33 of 100 (Routine)
Newark Ag Farm	United States	Record low maximum temperature	8.9 C (48.0 F)	32 of 100 (Routine)
Belfast	United States	Record low maximum temperature	5.6 C (42.1 F)	32 of 100 (Routine)
Farmington	United States	Record low maximum temperature	1.7 C (35.1 F)	32 of 100 (Routine)
Coldwater St School	United States	Record low minimum temperature	-8.9 C (16.0 F)	32 of 100 (Routine)
Indian Mills 2 W	United States	Record low maximum temperature	8.3 C (46.9 F)	32 of 100 (Routine)
Woodstock	United States	Record low maximum temperature	1.1 C (34.0 F)	32 of 100 (Routine)
Manassas 3 NW	United States	Record low maximum temperature	10.6 C (51.1 F)	32 of 100 (Routine)
Sackville	Canada	Record low maximum temperature	-2.2 C (28.0 F)	31 of 100 (Routine)
Parrsboro	Canada	Record low maximum temperature	-0.6 C (30.9 F)	31 of 100 (Routine)
Vitoria Aerodromo	Spain	Record daily precipitation	39.4 mm (1.6 in)	31 of 100 (Routine)
Patagonia #2	United States	Record daily precipitation	29.5 mm (1.2 in)	31 of 100 (Routine)
Dover	United States	Record low maximum temperature	8.9 C (48.0 F)	31 of 100 (Routine)
Milford 2 SE	United States	Record low maximum temperature	8.9 C (48.0 F)	31 of 100 (Routine)
Orono	United States	Record low maximum temperature	2.8 C (37.0 F)	31 of 100 (Routine)
Baldwin	United States	Record low maximum temperature	5.0 C (41.0 F)	31 of 100 (Routine)
Sussex 1 NW	United States	Record low maximum temperature	5.6 C (42.1 F)	31 of 100 (Routine)
Hemlock	United States	Record low minimum temperature	-6.1 C (21.0 F)	31 of 100 (Routine)
Wamsutter	United States	Record high minimum temperature	3.9 C (39.0 F)	31 of 100 (Routine)
Yellowstone Park Mammoth	United States	Record high maximum temperature	21.1 C (70.0 F)	31 of 100 (Routine)
Gladwin	United States	Record low minimum temperature	-7.8 C (18.0 F)	31 of 100 (Routine)
Ohotsk	Russia	Record low minimum temperature	-17.2 C (1.0 F)	30 of 100 (Routine)
Storrs	United States	Record low maximum temperature	3.9 C (39.0 F)	30 of 100 (Routine)
Glenns Ferry	United States	Record low maximum temperature	6.1 C (43.0 F)	30 of 100 (Routine)
Auburn 2 SSE	United States	Record low minimum temperature	-6.1 C (21.0 F)	30 of 100 (Routine)
E Tawas	United States	Record low minimum temperature	-8.9 C (16.0 F)	30 of 100 (Routine)

Counts by Type and Timescale

866 records

Records set or tied on 21 October 1974 by type: Highest daily maximum 38, Lowest daily maximum 313, Highest daily minimum 65, Lowest daily minimum 206, Heaviest daily rainfall 199, Heaviest daily snowfall 26, Deepest snow cover 19.

Records on 21 October 1974 by type
Record type	Records
Highest daily maximum	38
Lowest daily maximum	313
Highest daily minimum	65
Lowest daily minimum	206
Heaviest daily rainfall	199
Heaviest daily snowfall	26
Deepest snow cover	19

Records on 21 October 1974 by timescale: all-time 1, monthly 48, daily 817.

How Much Records Were Beaten By

676 broken records

Margins by which the 676 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 420.0. Ties are not counted.

Top 20 by Significance

21 October 1974

Top 20 records on 21 October 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1974	Boolathana, AU	monthly rain	45.8 mm (1.8 in)	21.9 mm (0.9 in)	57 years	74 of 100 (Major)
21 October 1974	Winderie, AU	monthly rain	106.0 mm (4.2 in)	79.3 mm (3.1 in)	61 years	74 of 100 (Major)
21 October 1974	Koordarrie, AU	monthly rain	71.9 mm (2.8 in)	56.7 mm (2.2 in)	43 years	68 of 100 (Major)
21 October 1974	Wien, AT	daily rain	54.8 mm (2.2 in)	33.6 mm (1.3 in)	39 years	58 of 100 (Notable)
21 October 1974	Davenport Downs Station, AU	daily rain	45.0 mm (1.8 in)	45.0 mm (1.8 in)	29 years	51 of 100 (Notable)
21 October 1974	Indore, IN	daily rain	37.1 mm (1.5 in)	37.1 mm (1.5 in)	72 years	51 of 100 (Notable)
21 October 1974	Exmouth Gulf, AU	monthly rain	63.5 mm (2.5 in)	32.3 mm (1.3 in)	8 years	50 of 100 (Notable)
21 October 1974	Nogales, US	daily rain	25.7 mm (1.0 in)	18.3 mm (0.7 in)	60 years	48 of 100 (Notable)
21 October 1974	Driggs, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	69 years	47 of 100 (Notable)
21 October 1974	Hiasen I Sigdal, NO	daily snow depth	37.0 cm (14.6 in)	17.0 cm (6.7 in)	71 years	45 of 100 (Notable)
21 October 1974	Tanana AP, US	daily snow depth	33.0 cm (13.0 in)	12.7 cm (5.0 in)	67 years	45 of 100 (Notable)
21 October 1974	Feldberg/Schwarzwald, DE	daily snow depth	62.0 cm (24.4 in)	42.0 cm (16.5 in)	16 years	41 of 100 (Notable)
21 October 1974	Emu Creek Station, AU	monthly rain	27.8 mm (1.1 in)	10.3 mm (0.4 in)	43 years	39 of 100 (Notable)
21 October 1974	Pesaro, IT	daily rain	48.7 mm (1.9 in)	0.3 mm (0.01 in)	98 years	39 of 100 (Notable)
21 October 1974	Bjornholt, NO	daily snow depth	23.0 cm (9.1 in)	8.0 cm (3.1 in)	71 years	39 of 100 (Notable)
21 October 1974	Boskoop, NL	daily rain	30.7 mm (1.2 in)	16.7 mm (0.7 in)	16 years	38 of 100 (Notable)
21 October 1974	Leiden, NL	daily rain	31.2 mm (1.2 in)	17.2 mm (0.7 in)	16 years	38 of 100 (Notable)
21 October 1974	Ionia 2SSW, US	daily low min	-7.8 C (18.0 F)	5.6 C (10.1 F)	71 years	38 of 100 (Notable)
21 October 1974	Bareilly, IN	daily rain	110.0 mm (4.3 in)	96.0 mm (3.8 in)	16 years	37 of 100 (Notable)
21 October 1974	Santander Centro, ES	daily rain	62.6 mm (2.5 in)	22.1 mm (0.9 in)	44 years	37 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

1795 to 1974

Records set or tied on this calendar date in each year from 1795 to 1974. 1974 had 866 records.

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

Records on 10-21 in each year
Year	Records
1795	1
1802	2
1805	1
1808	1
1810	1
1834	1
1835	1
1840	1
1845	1
1847	1
1850	1
1851	2
1854	1
1859	1
1863	1
1864	1
1866	3
1867	1
1868	3
1869	2
1871	1
1872	1
1873	1
1874	1
1876	4
1877	2
1878	1
1880	3
1881	1
1883	1
1886	1
1888	2
1889	2
1890	3
1891	6
1892	6
1893	1
1894	1
1895	2
1896	5
1898	6
1899	3
1900	2
1901	9
1902	2
1903	3
1904	30
1905	15
1906	11
1907	35
1908	35
1909	19
1910	21
1911	10
1912	18
1913	59
1914	35
1915	43
1916	70
1917	208
1918	18
1919	102
1920	149
1921	58
1922	78
1923	81
1924	389
1925	150
1926	77
1927	187
1928	78
1929	200
1930	492
1931	217
1932	165
1933	733
1934	407
1935	707
1936	407
1937	132
1938	121
1939	491
1940	537
1941	644
1942	258
1943	421
1944	367
1945	538
1946	297
1947	977
1948	266
1949	1,015
1950	438
1951	382
1952	848
1953	1,579
1954	279
1955	481
1956	276
1957	511
1958	322
1959	410
1960	408
1961	553
1962	359
1963	725
1964	457
1965	465
1966	425
1967	472
1968	174
1969	881
1970	548
1971	498
1972	813
1973	464
1974	866
1975	509
1976	1,467
1977	451
1978	616
1979	1,958
1980	378
1981	667
1982	870
1983	786
1984	1,872
1985	776
1986	814
1987	852
1988	696
1989	1,668
1990	807
1991	877
1992	1,095
1993	845
1994	670
1995	1,120
1996	1,581
1997	915
1998	711
1999	688
2000	771
2001	610
2002	1,241
2003	2,066
2004	1,674
2005	949
2006	1,057
2007	916
2008	610
2009	713
2010	710
2011	662
2012	703
2013	440
2014	716
2015	493
2016	734
2017	750
2018	440
2019	757
2020	1,135
2021	574
2022	629
2023	890
2024	1,138
2025	364

Download the Data

Data for records on 1974-10-21: 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 2026-10-15 (15 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).

Histogram of margins by which records were beaten on 21 October 1974
Margin	Records
0 to 100	667
100 to 200	8
200 to 300	0
300 to 400	0
400 to 500	1