Weather Records on 21 May 1951

271 weather records were set or tied worldwide on 21 May 1951. Highest significance: Curtis, US.

Key Facts for 21 May 1951

On 21 May 1951, 271 weather records were set or tied at long-record stations worldwide.
118 were record highs and 17 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 265 daily.
Curtis set a daily record precipitation of 82.0 mm (3.2 in) on 21 May 1951.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

271 stations

271 station records on 21 May 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Curtis	United States	Record daily precipitation	82.0 mm (3.2 in)	57 of 100 (Notable)
Dodge City	United States	Record daily precipitation	64.3 mm (2.5 in)	50 of 100 (Notable)
Pueblo City Rsvr	United States	Record daily precipitation	31.0 mm (1.2 in)	48 of 100 (Notable)
Berlin-Dahlem (Lfag)	Germany	Record daily precipitation	27.7 mm (1.1 in)	47 of 100 (Notable)
Wollongong Post Office	Australia	Record daily precipitation	138.9 mm (5.5 in)	39 of 100 (Notable)
Jefferson 3SE	United States	Record daily precipitation	71.9 mm (2.8 in)	39 of 100 (Notable)
Jamberoo (Lorna)	Australia	Record daily precipitation	104.1 mm (4.1 in)	38 of 100 (Notable)
Yundamindra	Australia	Record daily precipitation	34.8 mm (1.4 in)	37 of 100 (Notable)
Ann Arbor U of Mich	United States	Record daily precipitation	39.4 mm (1.6 in)	37 of 100 (Notable)
Elwood 8 S	United States	Record daily precipitation	67.8 mm (2.7 in)	36 of 100 (Notable)
Hill City Muni AP	United States	Record daily precipitation	62.5 mm (2.5 in)	35 of 100 (Notable)
Aravakurichi	India	Record daily precipitation	76.2 mm (3.0 in)	33 of 100 (Routine)
Alma	United States	Record daily precipitation	76.7 mm (3.0 in)	33 of 100 (Routine)
Gerringong (Mayflower Village)	Australia	Record daily precipitation	75.2 mm (3.0 in)	32 of 100 (Routine)
Woodburn Post Office	Australia	Record daily precipitation	47.8 mm (1.9 in)	31 of 100 (Routine)
Belleville	Canada	Record high minimum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Albany	Australia	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Orleans 2 W	United States	Record daily precipitation	53.6 mm (2.1 in)	30 of 100 (Routine)
Makaweli 965	United States	Record high minimum temperature	22.8 C (73.0 F)	30 of 100 (Routine)
Wittstock-Rote Muhle	Germany	Record daily precipitation	27.0 mm (1.1 in)	29 of 100 (Routine)
Miranda (Blackwood St)	Australia	Record daily precipitation	84.8 mm (3.3 in)	28 of 100 (Routine)
Wayne	United States	Record daily precipitation	38.4 mm (1.5 in)	28 of 100 (Routine)
Beaver City	United States	Record daily precipitation	50.8 mm (2.0 in)	28 of 100 (Routine)
Wattlegrove	Australia	Record daily precipitation	38.1 mm (1.5 in)	26 of 100 (Routine)
Kendall Post Office	Australia	Record daily precipitation	81.5 mm (3.2 in)	26 of 100 (Routine)
Botany No.1 Dam	Australia	Record daily precipitation	39.1 mm (1.5 in)	26 of 100 (Routine)
Rocky Hall Post Office	Australia	Record daily precipitation	52.6 mm (2.1 in)	25 of 100 (Routine)
Ste Agathe des Monts	Canada	Record high minimum temperature	18.3 C (64.9 F)	25 of 100 (Routine)
Astana	Kazakhstan	Record high minimum temperature	15.6 C (60.1 F)	25 of 100 (Routine)
Trousdale 1 NE	United States	Record daily precipitation	55.4 mm (2.2 in)	25 of 100 (Routine)
Illalangi	Australia	Record daily precipitation	34.3 mm (1.4 in)	24 of 100 (Routine)
Morpeth Post Office	Australia	Record daily precipitation	49.3 mm (1.9 in)	24 of 100 (Routine)
Weston	United States	Record high minimum temperature	16.7 C (62.1 F)	24 of 100 (Routine)
Wytheville	United States	Record high minimum temperature	16.7 C (62.1 F)	24 of 100 (Routine)
Achinsk	Russia	Record high minimum temperature	14.4 C (57.9 F)	23 of 100 (Routine)
Bajramaly	Turkmenistan	Record high minimum temperature	23.1 C (73.6 F)	23 of 100 (Routine)
Eastport	United States	Record high minimum temperature	8.9 C (48.0 F)	23 of 100 (Routine)
Spier Falls	United States	Record high minimum temperature	20.0 C (68.0 F)	23 of 100 (Routine)
Tupper Lake Sunmount	United States	Record high minimum temperature	15.6 C (60.1 F)	23 of 100 (Routine)
Nornalup	Australia	Record daily precipitation	27.4 mm (1.1 in)	22 of 100 (Routine)
Maclean (McLachlan Street)	Australia	Record daily precipitation	44.2 mm (1.7 in)	22 of 100 (Routine)
Minchinbury	Australia	Record daily precipitation	33.3 mm (1.3 in)	22 of 100 (Routine)
Lakin	United States	Record daily precipitation	77.2 mm (3.0 in)	22 of 100 (Routine)
Wilsonville	United States	Record daily precipitation	43.2 mm (1.7 in)	22 of 100 (Routine)
Ashfield Bowling Club	Australia	Record daily precipitation	56.9 mm (2.2 in)	21 of 100 (Routine)
Kiama Bowling Club	Australia	Record daily precipitation	78.7 mm (3.1 in)	21 of 100 (Routine)
West Wyalong (Tallimbalong)	Australia	Record daily precipitation	30.7 mm (1.2 in)	21 of 100 (Routine)
Roberval Nord	Canada	Record high maximum temperature	30.0 C (86.0 F)	21 of 100 (Routine)
Selonah	India	Record daily precipitation	99.1 mm (3.9 in)	21 of 100 (Routine)
Subiaco	United States	Record high maximum temperature	34.4 C (93.9 F)	21 of 100 (Routine)
Smith Ctr	United States	Record daily precipitation	66.5 mm (2.6 in)	21 of 100 (Routine)
Bellefontaine	United States	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
Prospect	United States	Record daily precipitation	36.8 mm (1.4 in)	21 of 100 (Routine)
Cordova AP	United States	Record daily precipitation	57.2 mm (2.3 in)	21 of 100 (Routine)
Hartsel	United States	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Soldier Summit	United States	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Dundee (Rangers Valley)	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
McGill	United States	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Duchesne	United States	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Killarney Post Office	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)

Counts by Type and Timescale

271 records

Records set or tied on 21 May 1951 by type: Highest daily maximum 39, Lowest daily maximum 14, Highest daily minimum 79, Lowest daily minimum 3, Heaviest daily rainfall 136.

Records on 21 May 1951 by type
Record type	Records
Highest daily maximum	39
Lowest daily maximum	14
Highest daily minimum	79
Lowest daily minimum	3
Heaviest daily rainfall	136
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 May 1951 by timescale: all-time 0, monthly 6, daily 265.

How Much Records Were Beaten By

217 broken records

Margins by which the 217 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 83.5. Ties are not counted.

Top 20 by Significance

21 May 1951

Top 20 records on 21 May 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1951	Curtis, US	daily rain	82.0 mm (3.2 in)	54.1 mm (2.1 in)	40 years	57 of 100 (Notable)
21 May 1951	Dodge City, US	daily rain	64.3 mm (2.5 in)	41.4 mm (1.6 in)	20 years	50 of 100 (Notable)
21 May 1951	Pueblo City Rsvr, US	daily rain	31.0 mm (1.2 in)	21.3 mm (0.8 in)	41 years	48 of 100 (Notable)
21 May 1951	Berlin-Dahlem (Lfag), DE	daily rain	27.7 mm (1.1 in)	15.9 mm (0.6 in)	42 years	47 of 100 (Notable)
21 May 1951	Wollongong Post Office, AU	daily rain	138.9 mm (5.5 in)	83.5 mm (3.3 in)	1 year	39 of 100 (Notable)
21 May 1951	Jefferson 3SE, US	daily rain	71.9 mm (2.8 in)	31.8 mm (1.3 in)	48 years	39 of 100 (Notable)
21 May 1951	Jamberoo (Lorna), AU	daily rain	104.1 mm (4.1 in)	45.2 mm (1.8 in)	53 years	38 of 100 (Notable)
21 May 1951	Yundamindra, AU	daily rain	34.8 mm (1.4 in)	23.4 mm (0.9 in)	24 years	37 of 100 (Notable)
21 May 1951	Ann Arbor U of Mich, US	daily rain	39.4 mm (1.6 in)	18.1 mm (0.7 in)	37 years	37 of 100 (Notable)
21 May 1951	Elwood 8 S, US	daily rain	67.8 mm (2.7 in)	26.9 mm (1.1 in)	40 years	36 of 100 (Notable)
21 May 1951	Hill City Muni AP, US	monthly rain	62.5 mm (2.5 in)	11.2 mm (0.4 in)	32 years	35 of 100 (Notable)
21 May 1951	Aravakurichi, IN	daily rain	76.2 mm (3.0 in)	47.8 mm (1.9 in)	16 years	33 of 100 (Routine)
21 May 1951	Alma, US	daily rain	76.7 mm (3.0 in)	18.3 mm (0.7 in)	48 years	33 of 100 (Routine)
21 May 1951	Gerringong (Mayflower Village), AU	daily rain	75.2 mm (3.0 in)	30.2 mm (1.2 in)	53 years	32 of 100 (Routine)
21 May 1951	Woodburn Post Office, AU	daily rain	47.8 mm (1.9 in)	16.8 mm (0.7 in)	58 years	31 of 100 (Routine)
21 May 1951	Belleville, CA	daily high min	15.6 C (60.1 F)	0.6 C (1.1 F)	73 years	31 of 100 (Routine)
21 May 1951	Albany, AU	daily rain	30.5 mm (1.2 in)	12.5 mm (0.5 in)	36 years	30 of 100 (Routine)
21 May 1951	Orleans 2 W, US	daily rain	53.6 mm (2.1 in)	20.8 mm (0.8 in)	40 years	30 of 100 (Routine)
21 May 1951	Makaweli 965, US	daily high min	22.8 C (73.0 F)	1.7 C (3.1 F)	44 years	30 of 100 (Routine)
21 May 1951	Wittstock-Rote Muhle, DE	daily rain	27.0 mm (1.1 in)	10.5 mm (0.4 in)	14 years	29 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 1951

Records set or tied on this calendar date in each year from 1793 to 1951. 1951 had 271 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 1951-05-21: 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 2026-10-15 (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).

Margin	Records
0 to 20	196
20 to 40	15
40 to 60	5
60 to 80	0
80 to 100	1