Weather Records on 12 May 2003

861 weather records were set or tied worldwide on 12 May 2003. Highest significance: Ironwood, US.

Key Facts for 12 May 2003

On 12 May 2003, 861 weather records were set or tied at long-record stations worldwide.
413 were record highs and 108 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 26 monthly and 833 daily.
Ironwood set a monthly record daily precipitation of 103.9 mm (4.1 in) on 12 May 2003.
Across 164 earlier years (1814 to 2026) the same calendar date averaged 450 records.

Record Map

861 stations

861 station records on 12 May 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 May 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ironwood	United States	Record daily precipitation	103.9 mm (4.1 in)	74 of 100 (Major)
Spring Valley	United States	Record daily precipitation	73.7 mm (2.9 in)	57 of 100 (Notable)
Stambaugh 2SSE	United States	Record daily precipitation	36.3 mm (1.4 in)	53 of 100 (Notable)
Gallinas	Mexico	Record high minimum temperature	31.1 C (88.0 F)	51 of 100 (Notable)
Saxon 1WSW	United States	Record daily precipitation	74.9 mm (2.9 in)	51 of 100 (Notable)
Oodla Wirra (Arakcan)	Australia	Record daily precipitation	37.0 mm (1.5 in)	50 of 100 (Notable)
Ovruch	Ukraine	Record daily precipitation	38.0 mm (1.5 in)	50 of 100 (Notable)
Wanaaring (Thurloo Downs)	Australia	Record daily precipitation	27.0 mm (1.1 in)	48 of 100 (Notable)
Tuddal	Norway	Record daily precipitation	27.1 mm (1.1 in)	48 of 100 (Notable)
Mellen 4 NE	United States	Record daily precipitation	70.6 mm (2.8 in)	48 of 100 (Notable)
Bergland Dam	United States	Record daily precipitation	53.8 mm (2.1 in)	47 of 100 (Notable)
Svityaz'	Ukraine	Record daily precipitation	48.0 mm (1.9 in)	46 of 100 (Notable)
Surin	Thailand	Record daily precipitation	99.8 mm (3.9 in)	44 of 100 (Notable)
Annex Creek	United States	Record daily precipitation	33.5 mm (1.3 in)	44 of 100 (Notable)
Two Wells	Australia	Record daily precipitation	30.1 mm (1.2 in)	43 of 100 (Notable)
Tacambaro	Mexico	Record high maximum temperature	38.9 C (102.0 F)	43 of 100 (Notable)
Mykland	Norway	Record daily precipitation	28.0 mm (1.1 in)	43 of 100 (Notable)
Trenton Falls	United States	Record daily precipitation	54.9 mm (2.2 in)	43 of 100 (Notable)
Westkapelle	Netherlands	Record daily precipitation	25.8 mm (1.0 in)	42 of 100 (Notable)
Prentice #2	United States	Record low maximum temperature	7.2 C (45.0 F)	41 of 100 (Notable)
Marquette	United States	Record daily precipitation	53.6 mm (2.1 in)	41 of 100 (Notable)
Tibooburra (Onepah)	Australia	Record daily precipitation	71.0 mm (2.8 in)	40 of 100 (Notable)
Bergeligrend	Norway	Record daily precipitation	25.5 mm (1.0 in)	40 of 100 (Notable)
Deland 1 SSE	United States	Record high minimum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Waupaca	United States	Record low maximum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Serpentine	Australia	Record daily precipitation	26.6 mm (1.0 in)	39 of 100 (Notable)
Lonsdale	Australia	Record daily precipitation	27.0 mm (1.1 in)	39 of 100 (Notable)
Vista	United States	Record low minimum temperature	0.0 C (32.0 F)	39 of 100 (Notable)
Marquette	United States	Record daily precipitation	32.3 mm (1.3 in)	39 of 100 (Notable)
Federal Pt	United States	Record high minimum temperature	23.9 C (75.0 F)	38 of 100 (Notable)
Herman	United States	Record daily precipitation	70.6 mm (2.8 in)	38 of 100 (Notable)
Lac Vieux Desert	United States	Record daily precipitation	40.9 mm (1.6 in)	38 of 100 (Notable)
Santo Domingo	Mexico	Record low minimum temperature	8.9 C (48.0 F)	37 of 100 (Notable)
San Jose de Raices	Mexico	Record high minimum temperature	23.9 C (75.0 F)	37 of 100 (Notable)
Gaylord	United States	Record low maximum temperature	6.7 C (44.1 F)	37 of 100 (Notable)
Stillwater Rsvr	United States	Record daily precipitation	39.6 mm (1.6 in)	37 of 100 (Notable)
Adjuntas	Mexico	Record daily precipitation	32.8 mm (1.3 in)	36 of 100 (Notable)
Tarpon Spgs Sewage Plt	United States	Record high minimum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Minocqua	United States	Record low maximum temperature	7.2 C (45.0 F)	36 of 100 (Notable)
Park Falls Dnr HQ	United States	Record daily precipitation	34.8 mm (1.4 in)	36 of 100 (Notable)
Petersville	Australia	Record daily precipitation	32.2 mm (1.3 in)	35 of 100 (Notable)
Manuel Avila Camacho	Mexico	Record low minimum temperature	8.9 C (48.0 F)	35 of 100 (Notable)
Sarny	Ukraine	Record daily precipitation	45.0 mm (1.8 in)	35 of 100 (Notable)
Hanover	United States	Record daily precipitation	28.4 mm (1.1 in)	35 of 100 (Notable)
Feodosiia	Ukraine	Record high maximum temperature	27.8 C (82.0 F)	34 of 100 (Routine)
Glen St Mary 1 W	United States	Record high minimum temperature	22.2 C (72.0 F)	34 of 100 (Routine)
Postville	United States	Record low maximum temperature	10.6 C (51.1 F)	34 of 100 (Routine)
Jornada Exp Range	United States	Record low minimum temperature	-1.7 C (28.9 F)	34 of 100 (Routine)
Madeline Is	United States	Record daily precipitation	41.4 mm (1.6 in)	34 of 100 (Routine)
Guanacevi (Smn)	Mexico	Record low minimum temperature	3.9 C (39.0 F)	33 of 100 (Routine)
Ingenio Catmis	Mexico	Record low minimum temperature	15.0 C (59.0 F)	33 of 100 (Routine)
Trona	United States	Record low minimum temperature	4.4 C (39.9 F)	33 of 100 (Routine)
New London Lock #22	United States	Record daily precipitation	40.6 mm (1.6 in)	33 of 100 (Routine)
Brule Rs	United States	Record daily precipitation	48.8 mm (1.9 in)	33 of 100 (Routine)
Tenosique (Smn)	Mexico	Record high maximum temperature	42.2 C (108.0 F)	32 of 100 (Routine)
Kviteseid - Moen	Norway	Record daily precipitation	28.2 mm (1.1 in)	32 of 100 (Routine)
Atbasar	Kazakhstan	Record high minimum temperature	12.9 C (55.2 F)	31 of 100 (Routine)
Xochitlan Todos Santos	Mexico	Record high minimum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Tveitsund	Norway	Record daily precipitation	31.4 mm (1.2 in)	31 of 100 (Routine)
Askaniia Nova	Ukraine	Record high maximum temperature	33.0 C (91.4 F)	31 of 100 (Routine)

Counts by Type and Timescale

861 records

Records set or tied on 12 May 2003 by type: Highest daily maximum 179, Lowest daily maximum 43, Highest daily minimum 234, Lowest daily minimum 65, Heaviest daily rainfall 339, Heaviest daily snowfall 1.

Records on 12 May 2003 by type
Record type	Records
Highest daily maximum	179
Lowest daily maximum	43
Highest daily minimum	234
Lowest daily minimum	65
Heaviest daily rainfall	339
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 12 May 2003 by timescale: all-time 2, monthly 26, daily 833.

How Much Records Were Beaten By

642 broken records

Margins by which the 642 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 284.0. Ties are not counted.

Top 20 by Significance

12 May 2003

Top 20 records on 12 May 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 2003	Ironwood, US	monthly rain	103.9 mm (4.1 in)	52.6 mm (2.1 in)	49 years	74 of 100 (Major)
12 May 2003	Spring Valley, US	daily rain	73.7 mm (2.9 in)	45.8 mm (1.8 in)	40 years	57 of 100 (Notable)
12 May 2003	Stambaugh 2SSE, US	daily rain	36.3 mm (1.4 in)	22.3 mm (0.9 in)	69 years	53 of 100 (Notable)
12 May 2003	Gallinas, MX	all-time high min	31.1 C (88.0 F)	3.9 C (7.0 F)	39 years	51 of 100 (Notable)
12 May 2003	Saxon 1WSW, US	monthly rain	74.9 mm (2.9 in)	20.3 mm (0.8 in)	49 years	51 of 100 (Notable)
12 May 2003	Oodla Wirra (Arakcan), AU	daily rain	37.0 mm (1.5 in)	30.6 mm (1.2 in)	25 years	50 of 100 (Notable)
12 May 2003	Ovruch, UA	daily rain	38.0 mm (1.5 in)	17.4 mm (0.7 in)	41 years	50 of 100 (Notable)
12 May 2003	Wanaaring (Thurloo Downs), AU	daily rain	27.0 mm (1.1 in)	12.5 mm (0.5 in)	114 years	48 of 100 (Notable)
12 May 2003	Tuddal, NO	daily rain	27.1 mm (1.1 in)	9.1 mm (0.36 in)	80 years	48 of 100 (Notable)
12 May 2003	Mellen 4 NE, US	daily rain	70.6 mm (2.8 in)	50.3 mm (2.0 in)	5 years	48 of 100 (Notable)
12 May 2003	Bergland Dam, US	daily rain	53.8 mm (2.1 in)	34.0 mm (1.3 in)	5 years	47 of 100 (Notable)
12 May 2003	Svityaz', UA	monthly rain	48.0 mm (1.9 in)	12.7 mm (0.5 in)	30 years	46 of 100 (Notable)
12 May 2003	Surin, TH	daily rain	99.8 mm (3.9 in)	60.1 mm (2.4 in)	17 years	44 of 100 (Notable)
12 May 2003	Annex Creek, US	daily rain	33.5 mm (1.3 in)	12.4 mm (0.5 in)	82 years	44 of 100 (Notable)
12 May 2003	Two Wells, AU	daily rain	30.1 mm (1.2 in)	16.5 mm (0.6 in)	16 years	43 of 100 (Notable)
12 May 2003	Tacambaro, MX	daily high max	38.9 C (102.0 F)	3.3 C (5.9 F)	77 years	43 of 100 (Notable)
12 May 2003	Mykland, NO	daily rain	28.0 mm (1.1 in)	6.5 mm (0.26 in)	82 years	43 of 100 (Notable)
12 May 2003	Trenton Falls, US	daily rain	54.9 mm (2.2 in)	25.2 mm (1.0 in)	18 years	43 of 100 (Notable)
12 May 2003	Westkapelle, NL	daily rain	25.8 mm (1.0 in)	11.7 mm (0.5 in)	36 years	42 of 100 (Notable)
12 May 2003	Prentice #2, US	daily low max	7.2 C (45.0 F)	1.1 C (2.0 F)	101 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

1814 to 2003

Records set or tied on this calendar date in each year from 1814 to 2003. 2003 had 861 records.

Counts for years before the ledger starts come from the same station rules.

Records on 05-12 in each year
Year	Records
1814	2
1823	1
1825	1
1827	1
1834	1
1837	1
1838	1
1845	1
1847	1
1848	1
1849	2
1851	1
1855	2
1860	2
1862	2
1863	1
1867	1
1868	1
1872	2
1874	1
1877	1
1878	1
1879	1
1881	4
1882	5
1884	3
1885	2
1886	3
1887	1
1888	1
1889	1
1890	1
1891	4
1894	1
1895	1
1896	1
1897	7
1898	3
1900	3
1901	6
1902	5
1903	7
1904	11
1905	10
1906	20
1907	53
1908	12
1909	4
1910	9
1911	37
1912	46
1913	6
1914	36
1915	50
1916	42
1917	54
1918	113
1919	42
1920	19
1921	64
1922	43
1923	109
1924	245
1925	275
1926	121
1927	167
1928	192
1929	172
1930	500
1931	350
1932	199
1933	476
1934	293
1935	404
1936	329
1937	214
1938	394
1939	233
1940	440
1941	568
1942	418
1943	803
1944	368
1945	389
1946	653
1947	286
1948	390
1949	414
1950	283
1951	427
1952	711
1953	891
1954	305
1955	265
1956	1,568
1957	454
1958	714
1959	740
1960	1,583
1961	381
1962	713
1963	777
1964	401
1965	196
1966	909
1967	810
1968	890
1969	506
1970	698
1971	668
1972	641
1973	393
1974	702
1975	418
1976	541
1977	855
1978	802
1979	763
1980	684
1981	855
1982	763
1983	1,281
1984	887
1985	1,199
1986	473
1987	1,295
1988	619
1989	856
1990	617
1991	1,177
1992	1,022
1993	1,208
1994	738
1995	1,190
1996	1,420
1997	921
1998	1,576
1999	881
2000	1,486
2001	1,015
2002	1,027
2003	861
2004	1,054
2005	1,369
2006	797
2007	630
2008	858
2009	687
2010	1,250
2011	1,119
2012	660
2013	689
2014	949
2015	958
2016	421
2017	529
2018	819
2019	784
2020	1,338
2021	712
2022	1,930
2023	429
2024	447
2025	940
2026	1,110

Download the Data

Data for records on 2003-05-12: 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	638
50 to 100	3
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	1