Weather Records on 21 May 1999

544 weather records were set or tied worldwide on 21 May 1999. Highest significance: Mittenwald-Buckelwiesen, DE.

Key Facts for 21 May 1999

On 21 May 1999, 544 weather records were set or tied at long-record stations worldwide.
232 were record highs and 142 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 18 monthly and 520 daily.
Mittenwald-Buckelwiesen set an all-time record daily precipitation of 159.9 mm (6.3 in) on 21 May 1999.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 460 records.

Record Map

544 stations

544 station records on 21 May 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mittenwald-Buckelwiesen	Germany	Record daily precipitation	159.9 mm (6.3 in)	77 of 100 (Major)
Garmisch-Partenkirchen	Germany	Record daily precipitation	138.2 mm (5.4 in)	77 of 100 (Major)
Saentis	Switzerland	Record daily precipitation	118.8 mm (4.7 in)	66 of 100 (Major)
Munsingen-Apfelstetten	Germany	Record daily precipitation	44.0 mm (1.7 in)	65 of 100 (Major)
Wornitz-Bottenweiler	Germany	Record daily precipitation	60.0 mm (2.4 in)	64 of 100 (Major)
Ellwangen-Rindelbach	Germany	Record daily precipitation	31.6 mm (1.2 in)	62 of 100 (Major)
Schwabisch Hall-Bibersfeld	Germany	Record daily precipitation	59.6 mm (2.3 in)	62 of 100 (Major)
Bhuj-Rudramata	India	Record daily precipitation	114.0 mm (4.5 in)	62 of 100 (Major)
Hohenpeissenberg	Germany	Record daily precipitation	138.5 mm (5.5 in)	61 of 100 (Major)
Dzaore	Russia	Record daily precipitation	38.2 mm (1.5 in)	60 of 100 (Major)
Innsbruck	Austria	Record daily precipitation	92.2 mm (3.6 in)	59 of 100 (Notable)
Oberstdorf	Germany	Record daily precipitation	100.3 mm (3.9 in)	53 of 100 (Notable)
Kaufering	Germany	Record daily precipitation	83.7 mm (3.3 in)	52 of 100 (Notable)
Red Oak	United States	Record daily precipitation	73.9 mm (2.9 in)	52 of 100 (Notable)
Sigmarszell-Zeisertsweiler	Germany	Record daily precipitation	75.3 mm (3.0 in)	51 of 100 (Notable)
Memmingen	Germany	Record daily precipitation	49.6 mm (2.0 in)	50 of 100 (Notable)
Shenandoah	United States	Record daily precipitation	86.4 mm (3.4 in)	49 of 100 (Notable)
Altomunster-Maisbrunn	Germany	Record daily precipitation	50.2 mm (2.0 in)	48 of 100 (Notable)
Kempten	Germany	Record daily precipitation	65.0 mm (2.6 in)	47 of 100 (Notable)
Lenningen-Schopfloch	Germany	Record daily precipitation	46.3 mm (1.8 in)	47 of 100 (Notable)
Charles City	United States	Record daily precipitation	39.1 mm (1.5 in)	47 of 100 (Notable)
Guthrie Ctr	United States	Record daily precipitation	62.2 mm (2.4 in)	47 of 100 (Notable)
Boos	Germany	Record daily precipitation	56.5 mm (2.2 in)	46 of 100 (Notable)
Red Cloud	United States	Record daily precipitation	64.5 mm (2.5 in)	46 of 100 (Notable)
Zugspitze	Germany	Record daily precipitation	133.9 mm (5.3 in)	45 of 100 (Notable)
Merklingen	Germany	Record daily precipitation	36.2 mm (1.4 in)	44 of 100 (Notable)
Turkestan	Kazakhstan	Record high minimum temperature	26.1 C (79.0 F)	44 of 100 (Notable)
Rapid City Rgnl AP	United States	Record daily precipitation	71.1 mm (2.8 in)	44 of 100 (Notable)
Randolph	United States	Record daily precipitation	86.4 mm (3.4 in)	42 of 100 (Notable)
Wollongbar (Central Park Drive	Australia	Record daily precipitation	33.0 mm (1.3 in)	41 of 100 (Notable)
Jokkmokk	Sweden	Record high maximum temperature	22.3 C (72.1 F)	40 of 100 (Notable)
New Hampton	United States	Record daily precipitation	59.7 mm (2.4 in)	40 of 100 (Notable)
Whittier	United States	Record snow depth	106.7 cm (42.0 in)	40 of 100 (Notable)
Stotten	Germany	Record daily precipitation	51.1 mm (2.0 in)	39 of 100 (Notable)
Heidenheim/Brenz	Germany	Record daily precipitation	27.7 mm (1.1 in)	39 of 100 (Notable)
Feldkirchen-Westerham-Lenzmuhl	Germany	Record daily precipitation	76.8 mm (3.0 in)	38 of 100 (Notable)
Santa Maria del Monte	Mexico	Record high minimum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
Hollis 5E	United States	Record daily precipitation	49.5 mm (1.9 in)	38 of 100 (Notable)
Gyzylarbat	Turkmenistan	Record low maximum temperature	19.3 C (66.7 F)	37 of 100 (Notable)
Attenkam	Germany	Record daily precipitation	80.9 mm (3.2 in)	35 of 100 (Notable)
Split Marjan	Croatia	Record daily precipitation	39.8 mm (1.6 in)	35 of 100 (Notable)
Akhty	Russia	Record low minimum temperature	1.5 C (34.7 F)	35 of 100 (Notable)
Cape Otway Lighthouse	Australia	Record high minimum temperature	14.0 C (57.2 F)	34 of 100 (Routine)
Augsburg	Germany	Record daily precipitation	57.7 mm (2.3 in)	34 of 100 (Routine)
Dillingen/Donau	Germany	Record daily precipitation	41.2 mm (1.6 in)	34 of 100 (Routine)
Desoto City 8 SW	United States	Record daily precipitation	53.3 mm (2.1 in)	34 of 100 (Routine)
Lawrence	United States	Record daily precipitation	43.4 mm (1.7 in)	34 of 100 (Routine)
Eagle Rvr	United States	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Mainhardt-Ziegelbronn	Germany	Record daily precipitation	31.2 mm (1.2 in)	33 of 100 (Routine)
Ocozocoautla	Mexico	Record low minimum temperature	11.1 C (52.0 F)	32 of 100 (Routine)
Sulak	Russia	Record low maximum temperature	-1.2 C (29.8 F)	32 of 100 (Routine)
Greenfield	United States	Record daily precipitation	60.5 mm (2.4 in)	32 of 100 (Routine)
Owatonna	United States	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record daily precipitation	50.1 mm (2.0 in)	31 of 100 (Routine)
Kr.Ansbach Weidenbach	Germany	Record daily precipitation	29.7 mm (1.2 in)	31 of 100 (Routine)
Ojinaga (Smn)	Mexico	Record high minimum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Grand Lake Stream	United States	Record daily precipitation	37.3 mm (1.5 in)	31 of 100 (Routine)
Snowtown	Australia	Record high minimum temperature	12.9 C (55.2 F)	30 of 100 (Routine)
Crohamhurst	Australia	Record daily precipitation	36.2 mm (1.4 in)	30 of 100 (Routine)
Tacambaro	Mexico	Record high maximum temperature	36.7 C (98.1 F)	29 of 100 (Routine)

Counts by Type and Timescale

544 records

Records set or tied on 21 May 1999 by type: Highest daily maximum 116, Lowest daily maximum 50, Highest daily minimum 116, Lowest daily minimum 92, Heaviest daily rainfall 168, Deepest snow cover 2.

Records on 21 May 1999 by type
Record type	Records
Highest daily maximum	116
Lowest daily maximum	50
Highest daily minimum	116
Lowest daily minimum	92
Heaviest daily rainfall	168
Heaviest daily snowfall	0
Deepest snow cover	2

Records on 21 May 1999 by timescale: all-time 6, monthly 18, daily 520.

How Much Records Were Beaten By

433 broken records

Margins by which the 433 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 762.0. Ties are not counted.

Top 20 by Significance

21 May 1999

Top 20 records on 21 May 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1999	Mittenwald-Buckelwiesen, DE	all-time rain	159.9 mm (6.3 in)	41.3 mm (1.6 in)	39 years	77 of 100 (Major)
21 May 1999	Garmisch-Partenkirchen, DE	all-time rain	138.2 mm (5.4 in)	43.3 mm (1.7 in)	39 years	77 of 100 (Major)
21 May 1999	Saentis, CH	daily rain	118.8 mm (4.7 in)	78.9 mm (3.1 in)	56 years	66 of 100 (Major)
21 May 1999	Munsingen-Apfelstetten, DE	daily rain	44.0 mm (1.7 in)	29.2 mm (1.1 in)	52 years	65 of 100 (Major)
21 May 1999	Wornitz-Bottenweiler, DE	monthly rain	60.0 mm (2.4 in)	26.9 mm (1.1 in)	30 years	64 of 100 (Major)
21 May 1999	Ellwangen-Rindelbach, DE	daily rain	31.6 mm (1.2 in)	17.4 mm (0.7 in)	86 years	62 of 100 (Major)
21 May 1999	Schwabisch Hall-Bibersfeld, DE	daily rain	59.6 mm (2.3 in)	42.9 mm (1.7 in)	53 years	62 of 100 (Major)
21 May 1999	Bhuj-Rudramata, IN	monthly rain	114.0 mm (4.5 in)	86.0 mm (3.4 in)	28 years	62 of 100 (Major)
21 May 1999	Hohenpeissenberg, DE	all-time rain	138.5 mm (5.5 in)	21.7 mm (0.9 in)	19 years	61 of 100 (Major)
21 May 1999	Dzaore, RU	daily rain	38.2 mm (1.5 in)	27.6 mm (1.1 in)	46 years	60 of 100 (Major)
21 May 1999	Innsbruck, AT	all-time rain	92.2 mm (3.6 in)	3.7 mm (0.15 in)	83 years	59 of 100 (Notable)
21 May 1999	Oberstdorf, DE	monthly rain	100.3 mm (3.9 in)	16.1 mm (0.6 in)	58 years	53 of 100 (Notable)
21 May 1999	Kaufering, DE	all-time rain	83.7 mm (3.3 in)	15.9 mm (0.6 in)	28 years	52 of 100 (Notable)
21 May 1999	Red Oak, US	daily rain	73.9 mm (2.9 in)	19.3 mm (0.8 in)	96 years	52 of 100 (Notable)
21 May 1999	Sigmarszell-Zeisertsweiler, DE	daily rain	75.3 mm (3.0 in)	29.8 mm (1.2 in)	60 years	51 of 100 (Notable)
21 May 1999	Memmingen, DE	daily rain	49.6 mm (2.0 in)	29.0 mm (1.1 in)	32 years	50 of 100 (Notable)
21 May 1999	Shenandoah, US	daily rain	86.4 mm (3.4 in)	31.0 mm (1.2 in)	53 years	49 of 100 (Notable)
21 May 1999	Altomunster-Maisbrunn, DE	daily rain	50.2 mm (2.0 in)	28.1 mm (1.1 in)	13 years	48 of 100 (Notable)
21 May 1999	Kempten, DE	daily rain	65.0 mm (2.6 in)	7.1 mm (0.28 in)	99 years	47 of 100 (Notable)
21 May 1999	Lenningen-Schopfloch, DE	daily rain	46.3 mm (1.8 in)	23.9 mm (0.9 in)	49 years	47 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 1999

Records set or tied on this calendar date in each year from 1793 to 1999. 1999 had 544 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 1999-05-21: 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 100	431
100 to 200	0
200 to 300	1
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	0
700 to 800	1