Weather Records on 21 May 1958

511 weather records were set or tied worldwide on 21 May 1958. Highest significance: Maragle Station, AU.

Key Facts for 21 May 1958

On 21 May 1958, 511 weather records were set or tied at long-record stations worldwide.
355 were record highs and 84 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 16 monthly and 494 daily.
Maragle Station set a daily record precipitation of 44.7 mm (1.8 in) on 21 May 1958.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 460 records.

Record Map

511 stations

511 station records on 21 May 1958 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 1958: highest significance records shown on the map
Station	Country	Type	Value	Significance
Maragle Station	Australia	Record daily precipitation	44.7 mm (1.8 in)	56 of 100 (Notable)
Darradup	Australia	Record daily precipitation	63.5 mm (2.5 in)	53 of 100 (Notable)
Dellyanine	Australia	Record daily precipitation	38.9 mm (1.5 in)	49 of 100 (Notable)
Sable Island	Canada	Record daily precipitation	67.8 mm (2.7 in)	39 of 100 (Notable)
Biddelia	Australia	Record daily precipitation	99.1 mm (3.9 in)	37 of 100 (Notable)
Balingup	Australia	Record daily precipitation	61.7 mm (2.4 in)	36 of 100 (Notable)
Bulken	Norway	Record daily precipitation	25.3 mm (1.0 in)	36 of 100 (Notable)
Alamur(Alamar)	India	Record daily precipitation	102.9 mm (4.1 in)	35 of 100 (Notable)
Coloso	Puerto Rico [United States]	Record daily precipitation	104.6 mm (4.1 in)	35 of 100 (Notable)
Forest Grove	Australia	Record daily precipitation	73.9 mm (2.9 in)	34 of 100 (Routine)
Payette	United States	Record high minimum temperature	15.0 C (59.0 F)	34 of 100 (Routine)
Vytegra	Russia	Record daily precipitation	33.8 mm (1.3 in)	32 of 100 (Routine)
Tucson WFO	United States	Record high minimum temperature	23.3 C (73.9 F)	31 of 100 (Routine)
Blackfoot Fire Dept	United States	Record high minimum temperature	15.0 C (59.0 F)	31 of 100 (Routine)
Houmoed	South Africa	Record daily precipitation	32.0 mm (1.3 in)	30 of 100 (Routine)
Barkerville	Canada	Record high minimum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Rooipoort	South Africa	Record daily precipitation	47.5 mm (1.9 in)	29 of 100 (Routine)
Saint Maries	United States	Record high minimum temperature	12.2 C (54.0 F)	29 of 100 (Routine)
Vale	United States	Record high minimum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Brownsville	United States	Record low maximum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Aberdeen Exp STN	United States	Record high minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Kohala 179.1	United States	Record low maximum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Boyup Brook	Australia	Record daily precipitation	36.8 mm (1.4 in)	27 of 100 (Routine)
Greenbushes	Australia	Record daily precipitation	62.2 mm (2.4 in)	27 of 100 (Routine)
Sauda	Norway	Record daily precipitation	34.1 mm (1.3 in)	27 of 100 (Routine)
Hovlandsdal	Norway	Record daily precipitation	93.8 mm (3.7 in)	27 of 100 (Routine)
Buhl	United States	Record high minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Kalispell Glacier AP	United States	Record high minimum temperature	11.7 C (53.1 F)	27 of 100 (Routine)
Scipio	United States	Record high minimum temperature	14.4 C (57.9 F)	27 of 100 (Routine)
Cle Elum	United States	Record high maximum temperature	35.0 C (95.0 F)	27 of 100 (Routine)
Mount Barker	Australia	Record high minimum temperature	15.0 C (59.0 F)	26 of 100 (Routine)
Botnen I Forde	Norway	Record daily precipitation	28.6 mm (1.1 in)	26 of 100 (Routine)
Parker	United States	Record high maximum temperature	43.3 C (109.9 F)	26 of 100 (Routine)
Caldwell	United States	Record high minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Coeur D'Alene	United States	Record high minimum temperature	12.8 C (55.0 F)	26 of 100 (Routine)
Rupert 3 WSW	United States	Record high minimum temperature	17.8 C (64.0 F)	26 of 100 (Routine)
Conconully	United States	Record high maximum temperature	32.2 C (90.0 F)	26 of 100 (Routine)
Albany	Australia	Record high minimum temperature	15.7 C (60.3 F)	25 of 100 (Routine)
Boulia Airport	Australia	Record high minimum temperature	17.2 C (63.0 F)	25 of 100 (Routine)
Hancock Exp Farm	United States	Record low minimum temperature	-1.7 C (28.9 F)	25 of 100 (Routine)
Lusk 2 SW	United States	Record high minimum temperature	11.1 C (52.0 F)	25 of 100 (Routine)
Georgetown Post Office	Australia	Record high minimum temperature	25.6 C (78.1 F)	24 of 100 (Routine)
Pitea	Sweden	Record low maximum temperature	4.4 C (39.9 F)	24 of 100 (Routine)
East Anaconda	United States	Record high minimum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Valier	United States	Record high minimum temperature	16.1 C (61.0 F)	24 of 100 (Routine)
Fauquier	Canada	Record high minimum temperature	12.2 C (54.0 F)	23 of 100 (Routine)
Crescent City 3 NNW	United States	Record high minimum temperature	12.2 C (54.0 F)	23 of 100 (Routine)
Hollister	United States	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Potlatch 3 NNE	United States	Record high minimum temperature	11.7 C (53.1 F)	23 of 100 (Routine)
Twin Falls 2 NNE	United States	Record high minimum temperature	17.2 C (63.0 F)	23 of 100 (Routine)
Chinook	United States	Record high maximum temperature	31.1 C (88.0 F)	23 of 100 (Routine)
Dillon	United States	Record daily precipitation	25.1 mm (1.0 in)	23 of 100 (Routine)
Beeville 5 NE	United States	Record low maximum temperature	22.2 C (72.0 F)	23 of 100 (Routine)
Moroni	United States	Record high minimum temperature	13.3 C (55.9 F)	23 of 100 (Routine)
Utah Lake Lehi	United States	Record high maximum temperature	32.8 C (91.0 F)	23 of 100 (Routine)
Concrete Ppl Fish STN	United States	Record high minimum temperature	15.0 C (59.0 F)	23 of 100 (Routine)
Stanley Wwtp	United States	Record low minimum temperature	-2.2 C (28.0 F)	23 of 100 (Routine)
Buffalo	United States	Record high maximum temperature	29.4 C (84.9 F)	23 of 100 (Routine)
Lihue 1020	United States	Record low maximum temperature	24.4 C (75.9 F)	23 of 100 (Routine)
Superior	United States	Record high minimum temperature	13.9 C (57.0 F)	23 of 100 (Routine)

Counts by Type and Timescale

511 records

Records set or tied on 21 May 1958 by type: Highest daily maximum 167, Lowest daily maximum 46, Highest daily minimum 188, Lowest daily minimum 38, Heaviest daily rainfall 71, Deepest snow cover 1.

Records on 21 May 1958 by type
Record type	Records
Highest daily maximum	167
Lowest daily maximum	46
Highest daily minimum	188
Lowest daily minimum	38
Heaviest daily rainfall	71
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 21 May 1958 by timescale: all-time 1, monthly 16, daily 494.

How Much Records Were Beaten By

381 broken records

Margins by which the 381 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 49.6. Ties are not counted.

Top 20 by Significance

21 May 1958

Top 20 records on 21 May 1958 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1958	Maragle Station, AU	daily rain	44.7 mm (1.8 in)	23.6 mm (0.9 in)	68 years	56 of 100 (Notable)
21 May 1958	Darradup, AU	daily rain	63.5 mm (2.5 in)	40.4 mm (1.6 in)	32 years	53 of 100 (Notable)
21 May 1958	Dellyanine, AU	daily rain	38.9 mm (1.5 in)	22.9 mm (0.9 in)	44 years	49 of 100 (Notable)
21 May 1958	Sable Island, CA	daily rain	67.8 mm (2.7 in)	31.5 mm (1.2 in)	5 years	39 of 100 (Notable)
21 May 1958	Biddelia, AU	all-time rain	99.1 mm (3.9 in)	10.2 mm (0.4 in)	16 years	37 of 100 (Notable)
21 May 1958	Balingup, AU	daily rain	61.7 mm (2.4 in)	35.3 mm (1.4 in)	21 years	36 of 100 (Notable)
21 May 1958	Bulken, NO	daily rain	25.3 mm (1.0 in)	9.2 mm (0.36 in)	48 years	36 of 100 (Notable)
21 May 1958	Alamur(Alamar), IN	daily rain	102.9 mm (4.1 in)	49.6 mm (2.0 in)	17 years	35 of 100 (Notable)
21 May 1958	Coloso, PR	daily rain	104.6 mm (4.1 in)	29.4 mm (1.2 in)	44 years	35 of 100 (Notable)
21 May 1958	Forest Grove, AU	daily rain	73.9 mm (2.9 in)	34.5 mm (1.4 in)	5 years	34 of 100 (Routine)
21 May 1958	Payette, US	daily high min	15.0 C (59.0 F)	3.9 C (7.0 F)	61 years	34 of 100 (Routine)
21 May 1958	Vytegra, RU	monthly rain	33.8 mm (1.3 in)	0.3 mm (0.01 in)	52 years	32 of 100 (Routine)
21 May 1958	Tucson WFO, US	daily high min	23.3 C (73.9 F)	3.9 C (7.0 F)	51 years	31 of 100 (Routine)
21 May 1958	Blackfoot Fire Dept, US	daily high min	15.0 C (59.0 F)	2.8 C (5.0 F)	60 years	31 of 100 (Routine)
21 May 1958	Houmoed, ZA	daily rain	32.0 mm (1.3 in)	19.3 mm (0.8 in)	12 years	30 of 100 (Routine)
21 May 1958	Barkerville, CA	daily high min	7.8 C (46.0 F)	1.1 C (2.0 F)	63 years	29 of 100 (Routine)
21 May 1958	Rooipoort, ZA	monthly rain	47.5 mm (1.9 in)	2.5 mm (0.10 in)	43 years	29 of 100 (Routine)
21 May 1958	Saint Maries, US	daily high min	12.2 C (54.0 F)	2.2 C (4.0 F)	57 years	29 of 100 (Routine)
21 May 1958	Vale, US	daily high min	14.4 C (57.9 F)	2.2 C (4.0 F)	60 years	29 of 100 (Routine)
21 May 1958	Brownsville, US	daily low max	25.0 C (77.0 F)	2.2 C (4.0 F)	47 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 1958

Records set or tied on this calendar date in each year from 1793 to 1958. 1958 had 511 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 1958-05-21: 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 10	366
10 to 20	6
20 to 30	4
30 to 40	3
40 to 50	2