Weather Records on 21 May 2012

848 weather records were set or tied worldwide on 21 May 2012. Highest significance: Kjahta, RU.

Key Facts for 21 May 2012

On 21 May 2012, 848 weather records were set or tied at long-record stations worldwide.
522 were record highs and 199 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 31 monthly and 815 daily.
Kjahta set a daily record precipitation of 42.0 mm (1.7 in) on 21 May 2012.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 458 records.

Record Map

848 stations

848 station records on 21 May 2012 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 2012: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kjahta	Russia	Record daily precipitation	42.0 mm (1.7 in)	72 of 100 (Major)
Ulan-Ude	Russia	Record daily precipitation	28.7 mm (1.1 in)	69 of 100 (Major)
Nuwara Eliya	Sri Lanka	Record high maximum temperature	32.5 C (90.5 F)	66 of 100 (Major)
Petrovskij Zavod	Russia	Record daily precipitation	33.8 mm (1.3 in)	59 of 100 (Notable)
Cap Cepet	France	Record daily precipitation	82.0 mm (3.2 in)	58 of 100 (Notable)
Cheboygan	United States	Record high maximum temperature	33.9 C (93.0 F)	51 of 100 (Notable)
Ajaccio	France	Record daily precipitation	91.6 mm (3.6 in)	49 of 100 (Notable)
Babuskin	Russia	Record daily precipitation	32.8 mm (1.3 in)	49 of 100 (Notable)
Clearwater	United States	Record daily precipitation	33.0 mm (1.3 in)	48 of 100 (Notable)
Newark Liberty Intl AP	United States	Record daily precipitation	41.1 mm (1.6 in)	47 of 100 (Notable)
Salzburg	Austria	Record high minimum temperature	18.5 C (65.3 F)	45 of 100 (Notable)
Gourdon	France	Record daily precipitation	33.7 mm (1.3 in)	43 of 100 (Notable)
Pichucalco (Smn)	Mexico	Record low minimum temperature	8.9 C (48.0 F)	42 of 100 (Notable)
Astrakan	Russia	Record high minimum temperature	21.5 C (70.7 F)	42 of 100 (Notable)
Eastbourne	United Kingdom	Record high maximum temperature	26.1 C (79.0 F)	42 of 100 (Notable)
Ft Bidwell	United States	Record high minimum temperature	12.8 C (55.0 F)	42 of 100 (Notable)
Logansport Cicott St	United States	Record high maximum temperature	33.9 C (93.0 F)	42 of 100 (Notable)
Woodruff	United States	Record high maximum temperature	27.8 C (82.0 F)	42 of 100 (Notable)
Nancy-Ochey	France	Record daily precipitation	61.9 mm (2.4 in)	41 of 100 (Notable)
Hart 3 WSW	United States	Record high maximum temperature	31.7 C (89.1 F)	41 of 100 (Notable)
Streator 2SE	United States	Record high maximum temperature	33.3 C (91.9 F)	40 of 100 (Notable)
Charlevoix	United States	Record high maximum temperature	33.9 C (93.0 F)	40 of 100 (Notable)
Levan	United States	Record high maximum temperature	31.1 C (88.0 F)	40 of 100 (Notable)
Tonsina	United States	Record snow depth	22.9 cm (9.0 in)	40 of 100 (Notable)
Cundancito	Mexico	Record low minimum temperature	12.2 C (54.0 F)	39 of 100 (Notable)
El Camalote	Mexico	Record daily precipitation	31.0 mm (1.2 in)	39 of 100 (Notable)
Gardiner	United States	Record high maximum temperature	30.0 C (86.0 F)	39 of 100 (Notable)
Buffalo Bill Dam	United States	Record high maximum temperature	28.3 C (82.9 F)	39 of 100 (Notable)
Presa El Barrial	Mexico	Record daily precipitation	26.9 mm (1.1 in)	38 of 100 (Notable)
Ekaterinburg	Russia	Record high minimum temperature	16.0 C (60.8 F)	38 of 100 (Notable)
Hale Loud Dam	United States	Record high maximum temperature	32.8 C (91.0 F)	38 of 100 (Notable)
Beaver Is	United States	Record high maximum temperature	27.2 C (81.0 F)	38 of 100 (Notable)
Metapa de Dominguez	Mexico	Record daily precipitation	115.8 mm (4.6 in)	37 of 100 (Notable)
Oakley	United States	Record high maximum temperature	30.6 C (87.1 F)	37 of 100 (Notable)
Jfk Intl AP	United States	Record daily precipitation	44.7 mm (1.8 in)	37 of 100 (Notable)
Toulouse-Blagnac	France	Record daily precipitation	28.6 mm (1.1 in)	36 of 100 (Notable)
Metten	Germany	Record high minimum temperature	16.9 C (62.4 F)	36 of 100 (Notable)
Rottweil	Germany	Record daily precipitation	29.4 mm (1.2 in)	36 of 100 (Notable)
Torrevieja	Spain	Record low minimum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Yreka	United States	Record high minimum temperature	12.8 C (55.0 F)	36 of 100 (Notable)
Provo Byu	United States	Record high maximum temperature	33.3 C (91.9 F)	36 of 100 (Notable)
Frontera Hidalgo	Mexico	Record daily precipitation	67.3 mm (2.6 in)	35 of 100 (Notable)
Ulan-Ude	Russia	Record low maximum temperature	7.1 C (44.8 F)	35 of 100 (Notable)
Ironwood	United States	Record daily precipitation	58.7 mm (2.3 in)	35 of 100 (Notable)
Tonopah	United States	Record high maximum temperature	28.9 C (84.0 F)	35 of 100 (Notable)
Aztec Ruins Nm	United States	Record high maximum temperature	32.2 C (90.0 F)	34 of 100 (Routine)
Coalville	United States	Record high maximum temperature	28.9 C (84.0 F)	34 of 100 (Routine)
Cascadia	United States	Record high minimum temperature	11.7 C (53.1 F)	33 of 100 (Routine)
Delta	United States	Record high maximum temperature	34.4 C (93.9 F)	33 of 100 (Routine)
Presa Totolica	Mexico	Record low minimum temperature	3.3 C (37.9 F)	32 of 100 (Routine)
Devils Garden	United States	Record daily precipitation	63.5 mm (2.5 in)	32 of 100 (Routine)
Paisley	United States	Record high minimum temperature	12.8 C (55.0 F)	32 of 100 (Routine)
Black Rock	United States	Record high maximum temperature	36.1 C (97.0 F)	32 of 100 (Routine)
Turany	Czech Republic	Record high minimum temperature	15.7 C (60.3 F)	31 of 100 (Routine)
Korf	Russia	Record low maximum temperature	1.3 C (34.3 F)	31 of 100 (Routine)
Aguila	United States	Record high maximum temperature	41.7 C (107.1 F)	31 of 100 (Routine)
Callahan	United States	Record high minimum temperature	13.9 C (57.0 F)	31 of 100 (Routine)
Pavillion	United States	Record high minimum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Campo Dell Oro	France	Record daily precipitation	51.3 mm (2.0 in)	30 of 100 (Routine)
Weissenburg	Germany	Record high minimum temperature	16.3 C (61.3 F)	30 of 100 (Routine)

Counts by Type and Timescale

848 records

Records set or tied on 21 May 2012 by type: Highest daily maximum 326, Lowest daily maximum 83, Highest daily minimum 196, Lowest daily minimum 116, Heaviest daily rainfall 125, Deepest snow cover 2.

Records on 21 May 2012 by type
Record type	Records
Highest daily maximum	326
Lowest daily maximum	83
Highest daily minimum	196
Lowest daily minimum	116
Heaviest daily rainfall	125
Heaviest daily snowfall	0
Deepest snow cover	2

Records on 21 May 2012 by timescale: all-time 2, monthly 31, daily 815.

How Much Records Were Beaten By

643 broken records

Margins by which the 643 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 330.0. Ties are not counted.

Top 20 by Significance

21 May 2012

Top 20 records on 21 May 2012 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 2012	Kjahta, RU	daily rain	42.0 mm (1.7 in)	36.0 mm (1.4 in)	75 years	72 of 100 (Major)
21 May 2012	Ulan-Ude, RU	daily rain	28.7 mm (1.1 in)	14.4 mm (0.6 in)	75 years	69 of 100 (Major)
21 May 2012	Nuwara Eliya, LK	all-time high max	32.5 C (90.5 F)	1.4 C (2.5 F)	143 years	66 of 100 (Major)
21 May 2012	Petrovskij Zavod, RU	monthly rain	33.8 mm (1.3 in)	12.5 mm (0.5 in)	21 years	59 of 100 (Notable)
21 May 2012	Cap Cepet, FR	monthly rain	82.0 mm (3.2 in)	32.0 mm (1.3 in)	28 years	58 of 100 (Notable)
21 May 2012	Cheboygan, US	monthly high max	33.9 C (93.0 F)	0.6 C (1.1 F)	100 years	51 of 100 (Notable)
21 May 2012	Ajaccio, FR	daily rain	91.6 mm (3.6 in)	77.6 mm (3.1 in)	11 years	49 of 100 (Notable)
21 May 2012	Babuskin, RU	daily rain	32.8 mm (1.3 in)	10.7 mm (0.4 in)	69 years	49 of 100 (Notable)
21 May 2012	Clearwater, US	daily rain	33.0 mm (1.3 in)	9.9 mm (0.39 in)	113 years	48 of 100 (Notable)
21 May 2012	Newark Liberty Intl AP, US	daily rain	41.1 mm (1.6 in)	12.4 mm (0.5 in)	92 years	47 of 100 (Notable)
21 May 2012	Salzburg, AT	daily high min	18.5 C (65.3 F)	2.9 C (5.2 F)	92 years	45 of 100 (Notable)
21 May 2012	Gourdon, FR	daily rain	33.7 mm (1.3 in)	20.4 mm (0.8 in)	33 years	43 of 100 (Notable)
21 May 2012	Pichucalco (Smn), MX	daily low min	8.9 C (48.0 F)	6.1 C (11.0 F)	55 years	42 of 100 (Notable)
21 May 2012	Astrakan, RU	daily high min	21.5 C (70.7 F)	1.0 C (1.8 F)	106 years	42 of 100 (Notable)
21 May 2012	Eastbourne, GB	daily high max	26.1 C (79.0 F)	1.7 C (3.1 F)	90 years	42 of 100 (Notable)
21 May 2012	Ft Bidwell, US	daily high min	12.8 C (55.0 F)	1.1 C (2.0 F)	119 years	42 of 100 (Notable)
21 May 2012	Logansport Cicott St, US	daily high max	33.9 C (93.0 F)	1.7 C (3.1 F)	110 years	42 of 100 (Notable)
21 May 2012	Woodruff, US	daily high max	27.8 C (82.0 F)	1.1 C (2.0 F)	108 years	42 of 100 (Notable)
21 May 2012	Nancy-Ochey, FR	monthly rain	61.9 mm (2.4 in)	13.9 mm (0.5 in)	12 years	41 of 100 (Notable)
21 May 2012	Hart 3 WSW, US	daily high max	31.7 C (89.1 F)	2.3 C (4.1 F)	91 years	41 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

1793 to 2012

Records set or tied on this calendar date in each year from 1793 to 2012. 2012 had 848 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 2012-05-21: 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 2026-10-13 (13 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 50	640
50 to 100	1
100 to 150	0
150 to 200	0
200 to 250	1
250 to 300	0
300 to 350	1