Weather Records on 21 May 1956

409 weather records were set or tied worldwide on 21 May 1956. Highest significance: Streaky Bay, AU.

Key Facts for 21 May 1956

On 21 May 1956, 409 weather records were set or tied at long-record stations worldwide.
243 were record highs and 88 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 408 daily.
Streaky Bay set a daily record precipitation of 26.7 mm (1.1 in) on 21 May 1956.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

409 stations

409 station records on 21 May 1956 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 1956: highest significance records shown on the map
Station	Country	Type	Value	Significance
Streaky Bay	Australia	Record daily precipitation	26.7 mm (1.1 in)	44 of 100 (Notable)
Fort Simpson	Canada	Record daily snowfall	14.5 cm (5.7 in)	41 of 100 (Notable)
Kothapeta	India	Record daily precipitation	102.9 mm (4.1 in)	35 of 100 (Notable)
Clarence Town (Grey St)	Australia	Record daily precipitation	39.1 mm (1.5 in)	33 of 100 (Routine)
Dullabcherra	India	Record daily precipitation	185.9 mm (7.3 in)	33 of 100 (Routine)
Flora 5 NW	United States	Record daily precipitation	40.9 mm (1.6 in)	32 of 100 (Routine)
Lovelock	United States	Record high minimum temperature	16.1 C (61.0 F)	32 of 100 (Routine)
Raymond Terrace (Kinross)	Australia	Record daily precipitation	32.5 mm (1.3 in)	30 of 100 (Routine)
Gudiyatham	India	Record daily precipitation	40.6 mm (1.6 in)	29 of 100 (Routine)
Tripoli Sidi El Mesri	Libya	Record high minimum temperature	25.5 C (77.9 F)	29 of 100 (Routine)
Fall Rvr Lake	United States	Record high maximum temperature	35.0 C (95.0 F)	29 of 100 (Routine)
Ottawa	United States	Record high maximum temperature	36.1 C (97.0 F)	29 of 100 (Routine)
Hays 1 S	United States	Record high maximum temperature	38.9 C (102.0 F)	28 of 100 (Routine)
Kampur	India	Record daily precipitation	40.4 mm (1.6 in)	27 of 100 (Routine)
Yates Ctr	United States	Record high maximum temperature	35.6 C (96.1 F)	27 of 100 (Routine)
Clearwater	United States	Record low minimum temperature	0.6 C (33.1 F)	27 of 100 (Routine)
Barguzin	Russia	Record low minimum temperature	-4.7 C (23.5 F)	26 of 100 (Routine)
Fall Rvr Lake	United States	Record high minimum temperature	18.9 C (66.0 F)	26 of 100 (Routine)
Bastrop	United States	Record high maximum temperature	34.4 C (93.9 F)	26 of 100 (Routine)
Murchison Downs	Australia	Record daily precipitation	27.2 mm (1.1 in)	25 of 100 (Routine)
Karlsruhe	Germany	Record low minimum temperature	1.5 C (34.7 F)	25 of 100 (Routine)
Wrixum/Fohr	Germany	Record low minimum temperature	2.4 C (36.3 F)	25 of 100 (Routine)
Ponnur(Ponnuru)	India	Record daily precipitation	40.9 mm (1.6 in)	25 of 100 (Routine)
Dhone	India	Record daily precipitation	76.2 mm (3.0 in)	25 of 100 (Routine)
La Plata 1 W	United States	Record low minimum temperature	3.9 C (39.0 F)	25 of 100 (Routine)
Neosho	United States	Record high minimum temperature	21.7 C (71.1 F)	25 of 100 (Routine)
Yellow Grass	Canada	Record high minimum temperature	15.0 C (59.0 F)	24 of 100 (Routine)
Morrisonville 4 SE	United States	Record daily precipitation	37.3 mm (1.5 in)	24 of 100 (Routine)
Lawrence	United States	Record high minimum temperature	21.7 C (71.1 F)	24 of 100 (Routine)
Warrensburg 4NW	United States	Record high minimum temperature	21.1 C (70.0 F)	24 of 100 (Routine)
Miles City	United States	Record high maximum temperature	33.9 C (93.0 F)	24 of 100 (Routine)
St Albans	Canada	Record high maximum temperature	32.8 C (91.0 F)	23 of 100 (Routine)
Den Helder	Netherlands	Record low minimum temperature	3.6 C (38.5 F)	23 of 100 (Routine)
Ft Scott	United States	Record high maximum temperature	34.4 C (93.9 F)	23 of 100 (Routine)
Cape May 2 NW	United States	Record low minimum temperature	5.6 C (42.1 F)	23 of 100 (Routine)
El Suez	Egypt	Record low minimum temperature	14.0 C (57.2 F)	22 of 100 (Routine)
Nandigama	India	Record daily precipitation	50.8 mm (2.0 in)	22 of 100 (Routine)
Guerrero (Smn)	Mexico	Record high minimum temperature	10.0 C (50.0 F)	22 of 100 (Routine)
Bridgeville 1 NW	United States	Record low minimum temperature	4.4 C (39.9 F)	22 of 100 (Routine)
Bedford	United States	Record high minimum temperature	17.8 C (64.0 F)	22 of 100 (Routine)
Fredonia	United States	Record high maximum temperature	36.7 C (98.1 F)	22 of 100 (Routine)
Lawrence	United States	Record high maximum temperature	36.7 C (98.1 F)	22 of 100 (Routine)
Appleton City	United States	Record high maximum temperature	36.1 C (97.0 F)	22 of 100 (Routine)
Harrisonville	United States	Record high maximum temperature	35.6 C (96.1 F)	22 of 100 (Routine)
Beaumont City	United States	Record high maximum temperature	35.0 C (95.0 F)	22 of 100 (Routine)
Stewart	Canada	Record low maximum temperature	9.4 C (48.9 F)	21 of 100 (Routine)
Kaiserslautern	Germany	Record low minimum temperature	-1.5 C (29.3 F)	21 of 100 (Routine)
Skovorodino	Russia	Record low maximum temperature	5.3 C (41.5 F)	21 of 100 (Routine)
Wisley	United Kingdom	Record low minimum temperature	0.0 C (32.0 F)	21 of 100 (Routine)
Inverness 3 SE	United States	Record low minimum temperature	13.9 C (57.0 F)	21 of 100 (Routine)
Hollister	United States	Record high minimum temperature	15.0 C (59.0 F)	21 of 100 (Routine)
Atchison	United States	Record high maximum temperature	35.6 C (96.1 F)	21 of 100 (Routine)
Eskridge	United States	Record high maximum temperature	35.0 C (95.0 F)	21 of 100 (Routine)
Wamego 4 W	United States	Record high maximum temperature	37.8 C (100.0 F)	21 of 100 (Routine)
Norris Madison Pwr House	United States	Record high minimum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Nikolskoye/Beringa Ostrov	Russia	Record daily precipitation	18.1 mm (0.7 in)	20 of 100 (Routine)
Wentworth (Cuthero)	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Arumpo	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Fort Simpson	Canada	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
St George	United States	Record daily precipitation	9.9 mm (0.39 in)	20 of 100 (Routine)

Counts by Type and Timescale

409 records

Records set or tied on 21 May 1956 by type: Highest daily maximum 141, Lowest daily maximum 17, Highest daily minimum 102, Lowest daily minimum 71, Heaviest daily rainfall 76, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 21 May 1956 by type
Record type	Records
Highest daily maximum	141
Lowest daily maximum	17
Highest daily minimum	102
Lowest daily minimum	71
Heaviest daily rainfall	76
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 21 May 1956 by timescale: all-time 0, monthly 1, daily 408.

How Much Records Were Beaten By

300 broken records

Margins by which the 300 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 650.0. Ties are not counted.

Top 20 by Significance

21 May 1956

Top 20 records on 21 May 1956 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1956	Streaky Bay, AU	daily rain	26.7 mm (1.1 in)	15.0 mm (0.6 in)	30 years	44 of 100 (Notable)
21 May 1956	Fort Simpson, CA	daily snowfall	14.5 cm (5.7 in)	14.5 cm (5.7 in)	58 years	41 of 100 (Notable)
21 May 1956	Kothapeta, IN	daily rain	102.9 mm (4.1 in)	60.0 mm (2.4 in)	1 year	35 of 100 (Notable)
21 May 1956	Clarence Town (Grey St), AU	daily rain	39.1 mm (1.5 in)	15.0 mm (0.6 in)	58 years	33 of 100 (Routine)
21 May 1956	Dullabcherra, IN	daily rain	185.9 mm (7.3 in)	52.3 mm (2.1 in)	28 years	33 of 100 (Routine)
21 May 1956	Flora 5 NW, US	daily rain	40.9 mm (1.6 in)	21.1 mm (0.8 in)	31 years	32 of 100 (Routine)
21 May 1956	Lovelock, US	monthly high min	16.1 C (61.0 F)	0.5 C (0.9 F)	53 years	32 of 100 (Routine)
21 May 1956	Raymond Terrace (Kinross), AU	daily rain	32.5 mm (1.3 in)	13.4 mm (0.5 in)	51 years	30 of 100 (Routine)
21 May 1956	Gudiyatham, IN	daily rain	40.6 mm (1.6 in)	14.7 mm (0.6 in)	53 years	29 of 100 (Routine)
21 May 1956	Tripoli Sidi El Mesri, LY	daily high min	25.5 C (77.9 F)	5.6 C (10.1 F)	36 years	29 of 100 (Routine)
21 May 1956	Fall Rvr Lake, US	daily high max	35.0 C (95.0 F)	2.8 C (5.0 F)	58 years	29 of 100 (Routine)
21 May 1956	Ottawa, US	daily high max	36.1 C (97.0 F)	3.9 C (7.0 F)	54 years	29 of 100 (Routine)
21 May 1956	Hays 1 S, US	daily high max	38.9 C (102.0 F)	2.8 C (5.0 F)	62 years	28 of 100 (Routine)
21 May 1956	Kampur, IN	daily rain	40.4 mm (1.6 in)	19.1 mm (0.8 in)	31 years	27 of 100 (Routine)
21 May 1956	Yates Ctr, US	daily high max	35.6 C (96.1 F)	3.9 C (7.0 F)	49 years	27 of 100 (Routine)
21 May 1956	Clearwater, US	daily low min	0.6 C (33.1 F)	2.2 C (4.0 F)	47 years	27 of 100 (Routine)
21 May 1956	Barguzin, RU	daily low min	-4.7 C (23.5 F)	2.6 C (4.7 F)	52 years	26 of 100 (Routine)
21 May 1956	Fall Rvr Lake, US	daily high min	18.9 C (66.0 F)	1.7 C (3.1 F)	58 years	26 of 100 (Routine)
21 May 1956	Bastrop, US	daily high max	34.4 C (93.9 F)	1.1 C (2.0 F)	56 years	26 of 100 (Routine)
21 May 1956	Murchison Downs, AU	daily rain	27.2 mm (1.1 in)	23.1 mm (0.9 in)	3 years	25 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 1956

Records set or tied on this calendar date in each year from 1793 to 1956. 1956 had 409 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 1956-05-21: 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 100	298
100 to 200	1
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	1