Weather Records on 21 May 2007

894 weather records were set or tied worldwide on 21 May 2007. Highest significance: Rainier Paradise Rs, US.

Key Facts for 21 May 2007

On 21 May 2007, 894 weather records were set or tied at long-record stations worldwide.
486 were record highs and 216 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 17 monthly and 877 daily.
Rainier Paradise Rs set a daily record precipitation of 47.0 mm (1.9 in) on 21 May 2007.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 458 records.

Record Map

894 stations

894 station records on 21 May 2007 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 2007: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rainier Paradise Rs	United States	Record daily precipitation	47.0 mm (1.9 in)	56 of 100 (Notable)
Cando 1E	United States	Record daily precipitation	61.7 mm (2.4 in)	54 of 100 (Notable)
Portland	Australia	Record daily precipitation	32.0 mm (1.3 in)	53 of 100 (Notable)
Elliston	United States	Record daily precipitation	44.5 mm (1.8 in)	53 of 100 (Notable)
Mount Richmond	Australia	Record daily precipitation	35.1 mm (1.4 in)	47 of 100 (Notable)
Fosston 1 E	United States	Record daily precipitation	25.1 mm (1.0 in)	47 of 100 (Notable)
Miami Beach	United States	Record daily precipitation	110.2 mm (4.3 in)	47 of 100 (Notable)
Beachport	Australia	Record daily precipitation	28.8 mm (1.1 in)	43 of 100 (Notable)
Grangeville	United States	Record low maximum temperature	6.1 C (43.0 F)	43 of 100 (Notable)
Elliston	United States	Record snow depth	40.6 cm (16.0 in)	43 of 100 (Notable)
Rock Springs	United States	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Milan	Italy	Record high maximum temperature	34.6 C (94.3 F)	42 of 100 (Notable)
Ola	United States	Record low maximum temperature	12.8 C (55.0 F)	42 of 100 (Notable)
Rugby	United States	Record daily precipitation	39.9 mm (1.6 in)	42 of 100 (Notable)
Kremsmuenster	Austria	Record high maximum temperature	28.9 C (84.0 F)	41 of 100 (Notable)
Yinchuan	China	Record daily precipitation	28.0 mm (1.1 in)	41 of 100 (Notable)
Moscow U of I	United States	Record low maximum temperature	8.9 C (48.0 F)	41 of 100 (Notable)
Hysham 25 SSE	United States	Record daily precipitation	27.7 mm (1.1 in)	41 of 100 (Notable)
Waynesville 1 E	United States	Record low minimum temperature	0.6 C (33.1 F)	41 of 100 (Notable)
Hohenwald	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Blaine	United States	Record low maximum temperature	12.2 C (54.0 F)	41 of 100 (Notable)
Moina	Australia	Record daily precipitation	27.6 mm (1.1 in)	40 of 100 (Notable)
Kaiserslautern	Germany	Record high maximum temperature	29.3 C (84.7 F)	40 of 100 (Notable)
Putbus	Germany	Record high maximum temperature	26.9 C (80.4 F)	40 of 100 (Notable)
Ocampo	Mexico	Record low maximum temperature	17.8 C (64.0 F)	40 of 100 (Notable)
Gibbonsville	United States	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Lybrook	United States	Record daily precipitation	27.9 mm (1.1 in)	39 of 100 (Notable)
Vasilevici	Belarus	Record high minimum temperature	16.8 C (62.2 F)	37 of 100 (Notable)
Arkona	Germany	Record high maximum temperature	23.1 C (73.6 F)	37 of 100 (Notable)
Guadalupe	Mexico	Record low maximum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
Guadalupe Victoria	Mexico	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Beira	Mozambique	Record high maximum temperature	36.2 C (97.2 F)	37 of 100 (Notable)
Jonesboro 3 SSE	United States	Record low minimum temperature	5.0 C (41.0 F)	37 of 100 (Notable)
Sandusky	United States	Record low maximum temperature	10.0 C (50.0 F)	37 of 100 (Notable)
Potlatch 3 NNE	United States	Record low maximum temperature	7.2 C (45.0 F)	36 of 100 (Notable)
Villaflores (Smn)	Mexico	Record high maximum temperature	40.0 C (104.0 F)	35 of 100 (Notable)
Mud Mtn Dam	United States	Record daily precipitation	34.5 mm (1.4 in)	35 of 100 (Notable)
Kiev	Ukraine	Record high maximum temperature	32.0 C (89.6 F)	34 of 100 (Routine)
Uman	Ukraine	Record high maximum temperature	31.6 C (88.9 F)	34 of 100 (Routine)
Sheldon	United States	Record high minimum temperature	17.8 C (64.0 F)	34 of 100 (Routine)
Elliston	United States	Record daily snowfall	40.6 cm (16.0 in)	34 of 100 (Routine)
Lemmon	United States	Record high minimum temperature	16.1 C (61.0 F)	34 of 100 (Routine)
Rocksprings	United States	Record low maximum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
Tantanoola	Australia	Record daily precipitation	32.6 mm (1.3 in)	33 of 100 (Routine)
San Zacarias	Mexico	Record low maximum temperature	20.6 C (69.1 F)	33 of 100 (Routine)
Nikolaev	Ukraine	Record high maximum temperature	33.1 C (91.6 F)	33 of 100 (Routine)
Judith Gap 13 E	United States	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Lancaster	United States	Record daily precipitation	25.7 mm (1.0 in)	33 of 100 (Routine)
Athens	United States	Record low maximum temperature	19.4 C (66.9 F)	33 of 100 (Routine)
Flinders Chase (Rocky River)	Australia	Record daily precipitation	30.2 mm (1.2 in)	32 of 100 (Routine)
Goomeri Post Office	Australia	Record daily precipitation	28.4 mm (1.1 in)	32 of 100 (Routine)
Schierke	Germany	Record high maximum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
Chemnitz	Germany	Record high minimum temperature	16.8 C (62.2 F)	32 of 100 (Routine)
Comondu	Mexico	Record low maximum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Syktyvkar	Russia	Record high minimum temperature	15.0 C (59.0 F)	32 of 100 (Routine)
Savsjo	Sweden	Record daily precipitation	31.6 mm (1.2 in)	32 of 100 (Routine)
Zuerich/Fluntern	Switzerland	Record high minimum temperature	15.7 C (60.3 F)	31 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record high maximum temperature	26.3 C (79.3 F)	30 of 100 (Routine)
Shepetivka	Ukraine	Record high maximum temperature	30.5 C (86.9 F)	30 of 100 (Routine)
Kiev	Ukraine	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)

Counts by Type and Timescale

894 records

Records set or tied on 21 May 2007 by type: Highest daily maximum 281, Lowest daily maximum 110, Highest daily minimum 205, Lowest daily minimum 106, Heaviest daily rainfall 183, Heaviest daily snowfall 7, Deepest snow cover 2.

Records on 21 May 2007 by type
Record type	Records
Highest daily maximum	281
Lowest daily maximum	110
Highest daily minimum	205
Lowest daily minimum	106
Heaviest daily rainfall	183
Heaviest daily snowfall	7
Deepest snow cover	2

Records on 21 May 2007 by timescale: all-time 0, monthly 17, daily 877.

How Much Records Were Beaten By

734 broken records

Margins by which the 734 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 355.0. Ties are not counted.

Top 20 by Significance

21 May 2007

Top 20 records on 21 May 2007 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 2007	Rainier Paradise Rs, US	daily rain	47.0 mm (1.9 in)	20.3 mm (0.8 in)	76 years	56 of 100 (Notable)
21 May 2007	Cando 1E, US	daily rain	61.7 mm (2.4 in)	40.9 mm (1.6 in)	14 years	54 of 100 (Notable)
21 May 2007	Portland, AU	daily rain	32.0 mm (1.3 in)	7.6 mm (0.30 in)	117 years	53 of 100 (Notable)
21 May 2007	Elliston, US	daily rain	44.5 mm (1.8 in)	17.8 mm (0.7 in)	49 years	53 of 100 (Notable)
21 May 2007	Mount Richmond, AU	daily rain	35.1 mm (1.4 in)	22.1 mm (0.9 in)	29 years	47 of 100 (Notable)
21 May 2007	Fosston 1 E, US	daily rain	25.1 mm (1.0 in)	11.1 mm (0.4 in)	88 years	47 of 100 (Notable)
21 May 2007	Miami Beach, US	daily rain	110.2 mm (4.3 in)	48.7 mm (1.9 in)	53 years	47 of 100 (Notable)
21 May 2007	Beachport, AU	daily rain	28.8 mm (1.1 in)	5.9 mm (0.23 in)	80 years	43 of 100 (Notable)
21 May 2007	Grangeville, US	daily low max	6.1 C (43.0 F)	2.2 C (4.0 F)	104 years	43 of 100 (Notable)
21 May 2007	Elliston, US	daily snow depth	40.6 cm (16.0 in)	35.5 cm (14.0 in)	49 years	43 of 100 (Notable)
21 May 2007	Rock Springs, US	daily rain	35.6 mm (1.4 in)	17.6 mm (0.7 in)	49 years	43 of 100 (Notable)
21 May 2007	Milan, IT	daily high max	34.6 C (94.3 F)	0.9 C (1.6 F)	136 years	42 of 100 (Notable)
21 May 2007	Ola, US	daily low max	12.8 C (55.0 F)	1.6 C (2.9 F)	101 years	42 of 100 (Notable)
21 May 2007	Rugby, US	daily rain	39.9 mm (1.6 in)	16.8 mm (0.7 in)	33 years	42 of 100 (Notable)
21 May 2007	Kremsmuenster, AT	daily high max	28.9 C (84.0 F)	0.9 C (1.6 F)	120 years	41 of 100 (Notable)
21 May 2007	Yinchuan, CN	daily rain	28.0 mm (1.1 in)	18.9 mm (0.7 in)	8 years	41 of 100 (Notable)
21 May 2007	Moscow U of I, US	daily low max	8.9 C (48.0 F)	1.1 C (2.0 F)	104 years	41 of 100 (Notable)
21 May 2007	Hysham 25 SSE, US	daily rain	27.7 mm (1.1 in)	16.0 mm (0.6 in)	36 years	41 of 100 (Notable)
21 May 2007	Waynesville 1 E, US	daily low min	0.6 C (33.1 F)	0.5 C (0.9 F)	112 years	41 of 100 (Notable)
21 May 2007	Hohenwald, US	daily high max	32.8 C (91.0 F)	0.6 C (1.1 F)	108 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 2007

Records set or tied on this calendar date in each year from 1793 to 2007. 2007 had 894 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 2007-05-21: 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 50	732
50 to 100	1
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1