Weather Records on 21 May 2006

810 weather records were set or tied worldwide on 21 May 2006. Highest significance: Priest Valley, US.

Key Facts for 21 May 2006

On 21 May 2006, 810 weather records were set or tied at long-record stations worldwide.
408 were record highs and 243 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 27 monthly and 780 daily.
Priest Valley set a monthly record daily precipitation of 68.6 mm (2.7 in) on 21 May 2006.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 458 records.

Record Map

810 stations

810 station records on 21 May 2006 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 May 2006: highest significance records shown on the map
Station	Country	Type	Value	Significance
Priest Valley	United States	Record daily precipitation	68.6 mm (2.7 in)	75 of 100 (Major)
Vacaville	United States	Record daily precipitation	29.0 mm (1.1 in)	63 of 100 (Major)
Big Sur STN	United States	Record daily precipitation	49.5 mm (1.9 in)	62 of 100 (Major)
San Luis Obispo Poly	United States	Record daily precipitation	32.8 mm (1.3 in)	62 of 100 (Major)
Santa Maria Public AP	United States	Record daily precipitation	32.8 mm (1.3 in)	59 of 100 (Notable)
Jordan	United States	Record daily precipitation	76.2 mm (3.0 in)	58 of 100 (Notable)
Morro Bay Fire Dept	United States	Record daily precipitation	56.6 mm (2.2 in)	56 of 100 (Notable)
Big Creek Ph 1	United States	Record daily precipitation	39.6 mm (1.6 in)	50 of 100 (Notable)
Saint Johns	United States	Record high minimum temperature	19.4 C (66.9 F)	49 of 100 (Notable)
Florence 8 NE	United States	Record daily precipitation	69.1 mm (2.7 in)	48 of 100 (Notable)
Nevada Wtp	United States	Record daily precipitation	45.7 mm (1.8 in)	45 of 100 (Notable)
Kailua 446	United States	Record low maximum temperature	19.4 C (66.9 F)	45 of 100 (Notable)
Dorado 2 WNW	Puerto Rico [United States]	Record high minimum temperature	28.3 C (82.9 F)	43 of 100 (Notable)
Olivares Mexicanos	Mexico	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Huntington Lake	United States	Record daily precipitation	61.7 mm (2.4 in)	40 of 100 (Notable)
Angelica	United States	Record low maximum temperature	7.2 C (45.0 F)	40 of 100 (Notable)
El Cuyo	Mexico	Record daily precipitation	61.5 mm (2.4 in)	39 of 100 (Notable)
Fort Huachuca	United States	Record high maximum temperature	33.9 C (93.0 F)	39 of 100 (Notable)
Clovis	United States	Record high maximum temperature	36.7 C (98.1 F)	38 of 100 (Notable)
Chappells 2 NNW	United States	Record daily precipitation	34.5 mm (1.4 in)	38 of 100 (Notable)
Follett	United States	Record high maximum temperature	40.0 C (104.0 F)	38 of 100 (Notable)
Biskra	Algeria	Record high maximum temperature	41.0 C (105.8 F)	37 of 100 (Notable)
Bogota/Eldorado	Colombia	Record daily precipitation	45.0 mm (1.8 in)	37 of 100 (Notable)
Marshall	United States	Record high maximum temperature	33.3 C (91.9 F)	37 of 100 (Notable)
Five Points 5 SSW	United States	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
Tahoe City	United States	Record high minimum temperature	6.7 C (44.1 F)	37 of 100 (Notable)
Weaverville	United States	Record high minimum temperature	13.3 C (55.9 F)	37 of 100 (Notable)
Ashton 1N	United States	Record high minimum temperature	9.4 C (48.9 F)	37 of 100 (Notable)
Greenville Kgvl Radio	United States	Record high maximum temperature	35.6 C (96.1 F)	37 of 100 (Notable)
Leting	China	Record daily precipitation	33.3 mm (1.3 in)	36 of 100 (Notable)
Mina	United States	Record high minimum temperature	17.2 C (63.0 F)	36 of 100 (Notable)
Capitan	United States	Record high minimum temperature	13.3 C (55.9 F)	36 of 100 (Notable)
Sandia Park	United States	Record high minimum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Enid	United States	Record high maximum temperature	38.3 C (100.9 F)	36 of 100 (Notable)
Mutual	United States	Record high maximum temperature	38.9 C (102.0 F)	35 of 100 (Notable)
Tucumcari 4 NE	United States	Record high maximum temperature	37.8 C (100.0 F)	34 of 100 (Routine)
Falls Village	United States	Record low maximum temperature	12.2 C (54.0 F)	33 of 100 (Routine)
Boundary Dam	United States	Record daily precipitation	26.7 mm (1.1 in)	33 of 100 (Routine)
Presa la Codorniz	Mexico	Record low minimum temperature	5.0 C (41.0 F)	32 of 100 (Routine)
Lompoc	United States	Record high minimum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Jal	United States	Record high minimum temperature	21.1 C (70.0 F)	32 of 100 (Routine)
Wallowa	United States	Record high minimum temperature	11.7 C (53.1 F)	31 of 100 (Routine)
Palo Verde	Mexico	Record low minimum temperature	2.8 C (37.0 F)	30 of 100 (Routine)
Paras	Mexico	Record low minimum temperature	13.9 C (57.0 F)	30 of 100 (Routine)
Concepcion Papalo	Mexico	Record low minimum temperature	7.8 C (46.0 F)	30 of 100 (Routine)
Santa Rosa	Mexico	Record high maximum temperature	35.6 C (96.1 F)	30 of 100 (Routine)
Okeechobee	United States	Record high maximum temperature	36.1 C (97.0 F)	30 of 100 (Routine)
Sault Ste Marie Sanderson Fld	United States	Record low maximum temperature	7.2 C (45.0 F)	30 of 100 (Routine)
Clarendon	United States	Record high maximum temperature	39.4 C (102.9 F)	30 of 100 (Routine)
Maun	Botswana	Record low maximum temperature	20.0 C (68.0 F)	29 of 100 (Routine)
Nice	France	Record high maximum temperature	25.3 C (77.5 F)	29 of 100 (Routine)
Ciudad Victoria	Mexico	Record low minimum temperature	15.2 C (59.4 F)	29 of 100 (Routine)
Litchfield Park	United States	Record high minimum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Cleveland	United States	Record daily precipitation	56.6 mm (2.2 in)	29 of 100 (Routine)
Winona	United States	Record high minimum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Seminole	United States	Record high maximum temperature	40.0 C (104.0 F)	29 of 100 (Routine)
Asosan	Japan	Record high maximum temperature	24.2 C (75.6 F)	28 of 100 (Routine)
Ambodedjo	Mali	Record low maximum temperature	34.6 C (94.3 F)	28 of 100 (Routine)
St. Brandon (St. Ra	Mauritius	Record high maximum temperature	32.2 C (90.0 F)	28 of 100 (Routine)
Xcupil (Dge)	Mexico	Record daily precipitation	64.8 mm (2.6 in)	28 of 100 (Routine)

Counts by Type and Timescale

810 records

Records set or tied on 21 May 2006 by type: Highest daily maximum 236, Lowest daily maximum 105, Highest daily minimum 172, Lowest daily minimum 138, Heaviest daily rainfall 159.

Records on 21 May 2006 by type
Record type	Records
Highest daily maximum	236
Lowest daily maximum	105
Highest daily minimum	172
Lowest daily minimum	138
Heaviest daily rainfall	159
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 May 2006 by timescale: all-time 3, monthly 27, daily 780.

How Much Records Were Beaten By

598 broken records

Margins by which the 598 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 41.7. Ties are not counted.

Top 20 by Significance

21 May 2006

Top 20 records on 21 May 2006 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 2006	Priest Valley, US	monthly rain	68.6 mm (2.7 in)	21.1 mm (0.8 in)	99 years	75 of 100 (Major)
21 May 2006	Vacaville, US	daily rain	29.0 mm (1.1 in)	16.6 mm (0.7 in)	109 years	63 of 100 (Major)
21 May 2006	Big Sur STN, US	daily rain	49.5 mm (1.9 in)	29.2 mm (1.1 in)	84 years	62 of 100 (Major)
21 May 2006	San Luis Obispo Poly, US	daily rain	32.8 mm (1.3 in)	28.2 mm (1.1 in)	48 years	62 of 100 (Major)
21 May 2006	Santa Maria Public AP, US	daily rain	32.8 mm (1.3 in)	29.5 mm (1.2 in)	48 years	59 of 100 (Notable)
21 May 2006	Jordan, US	monthly rain	76.2 mm (3.0 in)	21.3 mm (0.8 in)	31 years	58 of 100 (Notable)
21 May 2006	Morro Bay Fire Dept, US	monthly rain	56.6 mm (2.2 in)	25.6 mm (1.0 in)	8 years	56 of 100 (Notable)
21 May 2006	Big Creek Ph 1, US	daily rain	39.6 mm (1.6 in)	17.8 mm (0.7 in)	73 years	50 of 100 (Notable)
21 May 2006	Saint Johns, US	monthly high min	19.4 C (66.9 F)	2.2 C (4.0 F)	80 years	49 of 100 (Notable)
21 May 2006	Florence 8 NE, US	daily rain	69.1 mm (2.7 in)	23.4 mm (0.9 in)	73 years	48 of 100 (Notable)
21 May 2006	Nevada Wtp, US	daily rain	45.7 mm (1.8 in)	8.1 mm (0.32 in)	103 years	45 of 100 (Notable)
21 May 2006	Kailua 446, US	daily low max	19.4 C (66.9 F)	2.3 C (4.1 F)	68 years	45 of 100 (Notable)
21 May 2006	Dorado 2 WNW, PR	daily high min	28.3 C (82.9 F)	2.7 C (4.9 F)	56 years	43 of 100 (Notable)
21 May 2006	Olivares Mexicanos, MX	daily rain	25.4 mm (1.0 in)	17.0 mm (0.7 in)	48 years	42 of 100 (Notable)
21 May 2006	Huntington Lake, US	monthly rain	61.7 mm (2.4 in)	6.8 mm (0.27 in)	49 years	40 of 100 (Notable)
21 May 2006	Angelica, US	daily low max	7.2 C (45.0 F)	1.1 C (2.0 F)	99 years	40 of 100 (Notable)
21 May 2006	El Cuyo, MX	daily rain	61.5 mm (2.4 in)	41.7 mm (1.6 in)	32 years	39 of 100 (Notable)
21 May 2006	Fort Huachuca, US	daily high max	33.9 C (93.0 F)	1.1 C (2.0 F)	92 years	39 of 100 (Notable)
21 May 2006	Clovis, US	daily high max	36.7 C (98.1 F)	1.1 C (2.0 F)	91 years	38 of 100 (Notable)
21 May 2006	Chappells 2 NNW, US	daily rain	34.5 mm (1.4 in)	7.8 mm (0.31 in)	76 years	38 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 2006

Records set or tied on this calendar date in each year from 1793 to 2006. 2006 had 810 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 2006-05-21: 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).

Histogram of margins by which records were beaten on 21 May 2006
Margin	Records
0 to 10	552
10 to 20	34
20 to 30	10
30 to 40	1
40 to 50	1