Weather Records on 21 May 1960

615 weather records were set or tied worldwide on 21 May 1960. Highest significance: Republic, US.

Key Facts for 21 May 1960

On 21 May 1960, 615 weather records were set or tied at long-record stations worldwide.
88 were record highs and 275 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 10 monthly and 604 daily.
Republic set a monthly record daily snowfall of 12.7 cm (5.0 in) on 21 May 1960.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 459 records.

Record Map

615 stations

615 station records on 21 May 1960 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 1960: highest significance records shown on the map
Station	Country	Type	Value	Significance
Republic	United States	Record daily snowfall	12.7 cm (5.0 in)	59 of 100 (Notable)
Beaverlodge Cda	Canada	Record daily precipitation	44.2 mm (1.7 in)	48 of 100 (Notable)
Estherville 4E	United States	Record daily precipitation	76.2 mm (3.0 in)	46 of 100 (Notable)
Chaska	United States	Record daily precipitation	89.2 mm (3.5 in)	46 of 100 (Notable)
Waseca S Rsch & Outreach Ctr	United States	Record daily precipitation	55.1 mm (2.2 in)	45 of 100 (Notable)
Prudente de Morais	Brazil	Record daily precipitation	100.0 mm (3.9 in)	44 of 100 (Notable)
Owk	India	Record daily precipitation	76.2 mm (3.0 in)	43 of 100 (Notable)
Detroit	United States	Record daily precipitation	31.8 mm (1.3 in)	38 of 100 (Notable)
Tirumangalam	India	Record daily precipitation	60.6 mm (2.4 in)	37 of 100 (Notable)
Mtn Home	United States	Record daily precipitation	26.2 mm (1.0 in)	37 of 100 (Notable)
Yakutat AP	United States	Record high maximum temperature	24.4 C (75.9 F)	37 of 100 (Notable)
Wistaria	Canada	Record daily snowfall	8.1 cm (3.2 in)	36 of 100 (Notable)
Oakley	United States	Record daily snowfall	5.1 cm (2.0 in)	35 of 100 (Notable)
Senador Pompeu	Brazil	Record daily precipitation	105.0 mm (4.1 in)	33 of 100 (Routine)
Hollister	United States	Record daily snowfall	7.6 cm (3.0 in)	33 of 100 (Routine)
Ulan-Ude	Russia	Record high minimum temperature	10.8 C (51.4 F)	31 of 100 (Routine)
Fall Rvr Lake	United States	Record low maximum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Santana Do Cariri	Brazil	Record daily precipitation	60.0 mm (2.4 in)	30 of 100 (Routine)
Ankola	India	Record daily precipitation	111.3 mm (4.4 in)	30 of 100 (Routine)
Winnebago	United States	Record daily precipitation	66.0 mm (2.6 in)	30 of 100 (Routine)
Heppner	United States	Record low maximum temperature	9.4 C (48.9 F)	30 of 100 (Routine)
Republic	United States	Record daily precipitation	26.4 mm (1.0 in)	30 of 100 (Routine)
Beaverlodge Cda	Canada	Record daily snowfall	14.0 cm (5.5 in)	29 of 100 (Routine)
Jerome	United States	Record daily snowfall	6.4 cm (2.5 in)	29 of 100 (Routine)
Jiggs 3 N	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record low minimum temperature	-4.4 C (24.1 F)	29 of 100 (Routine)
Dover 1 W	United States	Record daily precipitation	54.6 mm (2.1 in)	29 of 100 (Routine)
Varzea Alegre	Brazil	Record daily precipitation	38.0 mm (1.5 in)	28 of 100 (Routine)
Baldonnel	Canada	Record low maximum temperature	0.6 C (33.1 F)	28 of 100 (Routine)
Riggins	United States	Record daily precipitation	26.4 mm (1.0 in)	28 of 100 (Routine)
Ashland	United States	Record low maximum temperature	10.0 C (50.0 F)	28 of 100 (Routine)
Umatilla	United States	Record low maximum temperature	13.3 C (55.9 F)	28 of 100 (Routine)
Vanderhoof	Canada	Record low maximum temperature	4.4 C (39.9 F)	27 of 100 (Routine)
Geneve Observatoire	Switzerland	Record daily precipitation	28.6 mm (1.1 in)	27 of 100 (Routine)
Pierce Rs	United States	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Faribault	United States	Record daily precipitation	59.7 mm (2.4 in)	27 of 100 (Routine)
Espanola	United States	Record low minimum temperature	-2.2 C (28.0 F)	27 of 100 (Routine)
Boa Viagem	Brazil	Record daily precipitation	36.2 mm (1.4 in)	26 of 100 (Routine)
Entrance	Canada	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Cherokee	United States	Record daily precipitation	94.7 mm (3.7 in)	26 of 100 (Routine)
Glenwood 3SW	United States	Record daily precipitation	50.8 mm (2.0 in)	26 of 100 (Routine)
Caruthersville	United States	Record daily precipitation	47.0 mm (1.9 in)	26 of 100 (Routine)
Johnstown	United States	Record high minimum temperature	17.8 C (64.0 F)	26 of 100 (Routine)
Raymondville	United States	Record daily precipitation	86.4 mm (3.4 in)	26 of 100 (Routine)
Staunton Wtp	United States	Record high minimum temperature	18.9 C (66.0 F)	26 of 100 (Routine)
Guararema	Brazil	Record daily precipitation	30.0 mm (1.2 in)	25 of 100 (Routine)
Kelowna	Canada	Record low minimum temperature	2.2 C (36.0 F)	25 of 100 (Routine)
Keremeos	Canada	Record low maximum temperature	12.2 C (54.0 F)	25 of 100 (Routine)
Beaverlodge Cda	Canada	Record low maximum temperature	3.9 C (39.0 F)	25 of 100 (Routine)
Bowman Dam	United States	Record low minimum temperature	-2.2 C (28.0 F)	25 of 100 (Routine)
McCall	United States	Record daily snowfall	12.7 cm (5.0 in)	25 of 100 (Routine)
Riggins	United States	Record low minimum temperature	1.7 C (35.1 F)	25 of 100 (Routine)
Galesburg	United States	Record low maximum temperature	16.1 C (61.0 F)	25 of 100 (Routine)
Manistique Wwtp	United States	Record high minimum temperature	11.7 C (53.1 F)	25 of 100 (Routine)
Blair	United States	Record low maximum temperature	12.2 C (54.0 F)	25 of 100 (Routine)
Crater Lake Nps HQ	United States	Record daily precipitation	40.1 mm (1.6 in)	25 of 100 (Routine)
Huntington	United States	Record low maximum temperature	12.8 C (55.0 F)	25 of 100 (Routine)
Mercedes 6 SSE	United States	Record daily precipitation	42.4 mm (1.7 in)	25 of 100 (Routine)
Cle Elum	United States	Record low maximum temperature	10.0 C (50.0 F)	25 of 100 (Routine)
Odessa	United States	Record low maximum temperature	13.3 C (55.9 F)	25 of 100 (Routine)

Counts by Type and Timescale

615 records

Records set or tied on 21 May 1960 by type: Highest daily maximum 30, Lowest daily maximum 156, Highest daily minimum 58, Lowest daily minimum 119, Heaviest daily rainfall 224, Heaviest daily snowfall 25, Deepest snow cover 3.

Records on 21 May 1960 by type
Record type	Records
Highest daily maximum	30
Lowest daily maximum	156
Highest daily minimum	58
Lowest daily minimum	119
Heaviest daily rainfall	224
Heaviest daily snowfall	25
Deepest snow cover	3

Records on 21 May 1960 by timescale: all-time 1, monthly 10, daily 604.

How Much Records Were Beaten By

493 broken records

Margins by which the 493 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

21 May 1960

Top 20 records on 21 May 1960 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1960	Republic, US	monthly snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	60 years	59 of 100 (Notable)
21 May 1960	Beaverlodge Cda, CA	daily rain	44.2 mm (1.7 in)	35.6 mm (1.4 in)	14 years	48 of 100 (Notable)
21 May 1960	Estherville 4E, US	daily rain	76.2 mm (3.0 in)	29.2 mm (1.1 in)	52 years	46 of 100 (Notable)
21 May 1960	Chaska, US	daily rain	89.2 mm (3.5 in)	66.8 mm (2.6 in)	10 years	46 of 100 (Notable)
21 May 1960	Waseca S Rsch & Outreach Ctr, US	daily rain	55.1 mm (2.2 in)	27.7 mm (1.1 in)	45 years	45 of 100 (Notable)
21 May 1960	Prudente de Morais, BR	daily rain	100.0 mm (3.9 in)	83.0 mm (3.3 in)	3 years	44 of 100 (Notable)
21 May 1960	Owk, IN	daily rain	76.2 mm (3.0 in)	43.9 mm (1.7 in)	20 years	43 of 100 (Notable)
21 May 1960	Detroit, US	daily rain	31.8 mm (1.3 in)	18.8 mm (0.7 in)	30 years	38 of 100 (Notable)
21 May 1960	Tirumangalam, IN	daily rain	60.6 mm (2.4 in)	21.2 mm (0.8 in)	51 years	37 of 100 (Notable)
21 May 1960	Mtn Home, US	daily rain	26.2 mm (1.0 in)	11.7 mm (0.5 in)	28 years	37 of 100 (Notable)
21 May 1960	Yakutat AP, US	daily high max	24.4 C (75.9 F)	8.3 C (14.9 F)	29 years	37 of 100 (Notable)
21 May 1960	Wistaria, CA	daily snowfall	8.1 cm (3.2 in)	7.8 cm (3.1 in)	5 years	36 of 100 (Notable)
21 May 1960	Oakley, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	63 years	35 of 100 (Notable)
21 May 1960	Senador Pompeu, BR	all-time rain	105.0 mm (4.1 in)	5.0 mm (0.20 in)	21 years	33 of 100 (Routine)
21 May 1960	Hollister, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	48 years	33 of 100 (Routine)
21 May 1960	Ulan-Ude, RU	daily high min	10.8 C (51.4 F)	2.2 C (4.0 F)	66 years	31 of 100 (Routine)
21 May 1960	Fall Rvr Lake, US	daily low max	16.7 C (62.1 F)	4.4 C (7.9 F)	55 years	31 of 100 (Routine)
21 May 1960	Santana Do Cariri, BR	daily rain	60.0 mm (2.4 in)	24.0 mm (0.9 in)	44 years	30 of 100 (Routine)
21 May 1960	Ankola, IN	daily rain	111.3 mm (4.4 in)	33.8 mm (1.3 in)	42 years	30 of 100 (Routine)
21 May 1960	Winnebago, US	daily rain	66.0 mm (2.6 in)	10.1 mm (0.4 in)	52 years	30 of 100 (Routine)

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 1960

Records set or tied on this calendar date in each year from 1793 to 1960. 1960 had 615 records.

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

Records on 05-21 in each year
Year	Records
1793	1
1795	1
1811	1
1837	2
1842	1
1847	2
1854	1
1857	1
1858	1
1865	1
1866	1
1870	2
1875	1
1876	1
1880	2
1882	1
1885	1
1886	2
1887	3
1889	5
1890	3
1891	6
1892	1
1893	1
1894	4
1895	4
1896	5
1897	2
1898	1
1899	5
1900	1
1901	3
1902	4
1903	26
1904	8
1905	7
1906	12
1907	36
1908	13
1909	13
1910	14
1911	87
1912	24
1913	13
1914	26
1915	24
1916	13
1917	76
1918	51
1919	170
1920	39
1921	158
1922	39
1923	125
1924	148
1925	250
1926	221
1927	207
1928	173
1929	247
1930	133
1931	488
1932	343
1933	290
1934	590
1935	190
1936	328
1937	227
1938	348
1939	355
1940	456
1941	525
1942	482
1943	463
1944	310
1945	515
1946	324
1947	485
1948	312
1949	593
1950	403
1951	271
1952	385
1953	501
1954	961
1955	507
1956	409
1957	709
1958	511
1959	684
1960	615
1961	306
1962	553
1963	598
1964	788
1965	238
1966	296
1967	1,022
1968	549
1969	832
1970	449
1971	536
1972	557
1973	493
1974	847
1975	1,160
1976	393
1977	756
1978	575
1979	787
1980	857
1981	1,550
1982	599
1983	1,106
1984	950
1985	610
1986	908
1987	1,242
1988	819
1989	671
1990	947
1991	1,065
1992	1,143
1993	1,197
1994	656
1995	749
1996	1,461
1997	953
1998	1,200
1999	544
2000	897
2001	1,187
2002	2,048
2003	807
2004	898
2005	1,020
2006	810
2007	894
2008	740
2009	1,315
2010	962
2011	959
2012	848
2013	884
2014	522
2015	956
2016	567
2017	780
2018	525
2019	1,668
2020	707
2021	1,131
2022	1,512
2023	794
2024	751
2025	776
2026	356

Download the Data

Data for records on 1960-05-21: 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 20	450
20 to 40	27
40 to 60	7
60 to 80	4
80 to 100	1
100 to 120	1
120 to 140	2
140 to 160	1