Weather Records on 30 May 2003

1,110 weather records were set or tied worldwide on 30 May 2003. Highest significance: Izuhara, JP.

Key Facts for 30 May 2003

On 30 May 2003, 1,110 weather records were set or tied at long-record stations worldwide.
884 were record highs and 95 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 197 monthly and 912 daily.
Izuhara set a daily record precipitation of 175.8 mm (6.9 in) on 30 May 2003.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 435 records.

Record Map

1,110 stations

1,110 station records on 30 May 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Izuhara	Japan	Record daily precipitation	175.8 mm (6.9 in)	58 of 100 (Notable)
Sheaville 1 SE	United States	Record daily precipitation	32.3 mm (1.3 in)	58 of 100 (Notable)
Cheyenne Wells 2NE	United States	Record high minimum temperature	21.1 C (70.0 F)	57 of 100 (Notable)
Ogden Pioneer Ph	United States	Record high minimum temperature	22.2 C (72.0 F)	55 of 100 (Notable)
Nicosia	Cyprus	Record daily precipitation	66.5 mm (2.6 in)	53 of 100 (Notable)
Tanhuato (Smn)	Mexico	Record low minimum temperature	8.9 C (48.0 F)	52 of 100 (Notable)
Norman 3SSE	United States	Record high maximum temperature	38.9 C (102.0 F)	52 of 100 (Notable)
Logan Utah St UNIV	United States	Record high minimum temperature	19.4 C (66.9 F)	52 of 100 (Notable)
Bowhill	United Kingdom	Record daily precipitation	27.8 mm (1.1 in)	51 of 100 (Notable)
Durham	United Kingdom	Record high minimum temperature	14.1 C (57.4 F)	51 of 100 (Notable)
Carnwath	United Kingdom	Record daily precipitation	38.2 mm (1.5 in)	50 of 100 (Notable)
Alliance 1WNW	United States	Record high maximum temperature	38.3 C (100.9 F)	50 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	87.4 mm (3.4 in)	48 of 100 (Notable)
Carson City	United States	Record high minimum temperature	16.1 C (61.0 F)	47 of 100 (Notable)
Lifton Pumping STN	United States	Record high minimum temperature	15.6 C (60.1 F)	46 of 100 (Notable)
Zagreb-Gric	Croatia	Record high minimum temperature	20.4 C (68.7 F)	45 of 100 (Notable)
Arco	United States	Record high minimum temperature	18.9 C (66.0 F)	45 of 100 (Notable)
Blackfoot Fire Dept	United States	Record high minimum temperature	19.4 C (66.9 F)	45 of 100 (Notable)
Grace	United States	Record high minimum temperature	16.1 C (61.0 F)	45 of 100 (Notable)
Tremonton	United States	Record high maximum temperature	35.6 C (96.1 F)	45 of 100 (Notable)
Atlatlahuacan	Mexico	Record high maximum temperature	35.6 C (96.1 F)	44 of 100 (Notable)
Castle Rock	United States	Record high maximum temperature	34.4 C (93.9 F)	44 of 100 (Notable)
Richfield	United States	Record high minimum temperature	17.2 C (63.0 F)	44 of 100 (Notable)
Cekunda	Russia	Record daily precipitation	25.0 mm (1.0 in)	43 of 100 (Notable)
Holdenville 2SSE	United States	Record high maximum temperature	37.2 C (99.0 F)	43 of 100 (Notable)
Ochoco Rs	United States	Record high minimum temperature	13.3 C (55.9 F)	43 of 100 (Notable)
Pendleton Dwtn	United States	Record high minimum temperature	16.1 C (61.0 F)	43 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record high minimum temperature	13.5 C (56.3 F)	42 of 100 (Notable)
Mokpo	Korea, South	Record daily precipitation	104.9 mm (4.1 in)	42 of 100 (Notable)
Tarpon Spgs Sewage Plt	United States	Record high minimum temperature	25.0 C (77.0 F)	42 of 100 (Notable)
Grand View 4 NW	United States	Record high minimum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Morgan	United States	Record high maximum temperature	35.0 C (95.0 F)	42 of 100 (Notable)
Mo I Rana III	Norway	Record daily precipitation	43.0 mm (1.7 in)	41 of 100 (Notable)
Glenns Ferry	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Oakley 4W	United States	Record high maximum temperature	39.4 C (102.9 F)	41 of 100 (Notable)
Kimball 2NE	United States	Record high maximum temperature	38.3 C (100.9 F)	41 of 100 (Notable)
Hallettsville 2 N	United States	Record high maximum temperature	37.2 C (99.0 F)	41 of 100 (Notable)
Diversion Dam	United States	Record high maximum temperature	33.3 C (91.9 F)	41 of 100 (Notable)
Clayton Muni Air Pk	United States	Record high minimum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Blyth Bridge	United Kingdom	Record daily precipitation	52.9 mm (2.1 in)	40 of 100 (Notable)
Akron 4 E	United States	Record high maximum temperature	36.7 C (98.1 F)	40 of 100 (Notable)
Leroy 5 WSW	United States	Record high maximum temperature	36.7 C (98.1 F)	40 of 100 (Notable)
Montello 2NE	United States	Record high maximum temperature	35.6 C (96.1 F)	40 of 100 (Notable)
Heber	United States	Record high maximum temperature	32.8 C (91.0 F)	40 of 100 (Notable)
Evanston 1 E	United States	Record high maximum temperature	29.4 C (84.9 F)	39 of 100 (Notable)
Tacambaro	Mexico	Record high maximum temperature	37.8 C (100.0 F)	38 of 100 (Notable)
Sterling	United States	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
P-Ranch South Place	United States	Record high minimum temperature	12.8 C (55.0 F)	38 of 100 (Notable)
Mys Lopatka	Russia	Record high maximum temperature	13.5 C (56.3 F)	37 of 100 (Notable)
Curtis	United States	Record high maximum temperature	37.2 C (99.0 F)	37 of 100 (Notable)
Fruitland	United States	Record high minimum temperature	15.6 C (60.1 F)	37 of 100 (Notable)
Vega 2NW	United States	Record high minimum temperature	21.1 C (70.0 F)	37 of 100 (Notable)
Grantsville 1ESE	United States	Record daily precipitation	43.4 mm (1.7 in)	37 of 100 (Notable)
Portales	United States	Record high maximum temperature	37.2 C (99.0 F)	36 of 100 (Notable)
Heber	United States	Record high minimum temperature	12.2 C (54.0 F)	36 of 100 (Notable)
Busan	Korea, South	Record low minimum temperature	5.6 C (42.1 F)	35 of 100 (Notable)
Canon City	United States	Record high maximum temperature	35.0 C (95.0 F)	35 of 100 (Notable)
John Day	United States	Record high minimum temperature	14.4 C (57.9 F)	35 of 100 (Notable)
Ilyinskiy	Russia	Record high minimum temperature	12.4 C (54.3 F)	34 of 100 (Routine)
Fruita	United States	Record high minimum temperature	16.1 C (61.0 F)	34 of 100 (Routine)

Counts by Type and Timescale

1,110 records

Records set or tied on 30 May 2003 by type: Highest daily maximum 409, Lowest daily maximum 36, Highest daily minimum 475, Lowest daily minimum 59, Heaviest daily rainfall 130, Heaviest daily snowfall 1.

Records on 30 May 2003 by type
Record type	Records
Highest daily maximum	409
Lowest daily maximum	36
Highest daily minimum	475
Lowest daily minimum	59
Heaviest daily rainfall	130
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 30 May 2003 by timescale: all-time 1, monthly 197, daily 912.

How Much Records Were Beaten By

787 broken records

Margins by which the 787 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 109.6. Ties are not counted.

Top 20 by Significance

30 May 2003

Top 20 records on 30 May 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 2003	Izuhara, JP	daily rain	175.8 mm (6.9 in)	109.6 mm (4.3 in)	52 years	58 of 100 (Notable)
30 May 2003	Sheaville 1 SE, US	daily rain	32.3 mm (1.3 in)	24.4 mm (1.0 in)	36 years	58 of 100 (Notable)
30 May 2003	Cheyenne Wells 2NE, US	monthly high min	21.1 C (70.0 F)	2.8 C (5.0 F)	101 years	57 of 100 (Notable)
30 May 2003	Ogden Pioneer Ph, US	monthly high min	22.2 C (72.0 F)	2.2 C (4.0 F)	101 years	55 of 100 (Notable)
30 May 2003	Nicosia, CY	daily rain	66.5 mm (2.6 in)	14.4 mm (0.6 in)	111 years	53 of 100 (Notable)
30 May 2003	Tanhuato (Smn), MX	daily low min	8.9 C (48.0 F)	6.1 C (11.0 F)	56 years	52 of 100 (Notable)
30 May 2003	Norman 3SSE, US	monthly high max	38.9 C (102.0 F)	1.1 C (2.0 F)	108 years	52 of 100 (Notable)
30 May 2003	Logan Utah St UNIV, US	monthly high min	19.4 C (66.9 F)	1.1 C (2.0 F)	110 years	52 of 100 (Notable)
30 May 2003	Bowhill, GB	daily rain	27.8 mm (1.1 in)	18.3 mm (0.7 in)	30 years	51 of 100 (Notable)
30 May 2003	Durham, GB	monthly high min	14.1 C (57.4 F)	0.6 C (1.1 F)	98 years	51 of 100 (Notable)
30 May 2003	Carnwath, GB	monthly rain	38.2 mm (1.5 in)	12.5 mm (0.5 in)	6 years	50 of 100 (Notable)
30 May 2003	Alliance 1WNW, US	monthly high max	38.3 C (100.9 F)	2.7 C (4.9 F)	87 years	50 of 100 (Notable)
30 May 2003	Ulleungdo, KR	daily rain	87.4 mm (3.4 in)	43.4 mm (1.7 in)	40 years	48 of 100 (Notable)
30 May 2003	Carson City, US	daily high min	16.1 C (61.0 F)	2.8 C (5.0 F)	105 years	47 of 100 (Notable)
30 May 2003	Lifton Pumping STN, US	monthly high min	15.6 C (60.1 F)	1.7 C (3.1 F)	77 years	46 of 100 (Notable)
30 May 2003	Zagreb-Gric, HR	daily high min	20.4 C (68.7 F)	1.7 C (3.1 F)	116 years	45 of 100 (Notable)
30 May 2003	Arco, US	monthly high min	18.9 C (66.0 F)	1.7 C (3.1 F)	76 years	45 of 100 (Notable)
30 May 2003	Blackfoot Fire Dept, US	daily high min	19.4 C (66.9 F)	6.6 C (11.9 F)	60 years	45 of 100 (Notable)
30 May 2003	Grace, US	daily high min	16.1 C (61.0 F)	6.1 C (11.0 F)	64 years	45 of 100 (Notable)
30 May 2003	Tremonton, US	monthly high max	35.6 C (96.1 F)	0.6 C (1.1 F)	84 years	45 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

1818 to 2003

Records set or tied on this calendar date in each year from 1818 to 2003. 2003 had 1,110 records.

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

Records on 05-30 in each year
Year	Records
1818	3
1844	1
1847	1
1848	1
1852	1
1853	1
1855	1
1856	1
1858	1
1860	2
1863	1
1864	1
1865	4
1867	1
1868	4
1870	1
1871	2
1873	4
1878	1
1879	1
1880	2
1881	1
1882	2
1883	1
1884	2
1885	1
1886	1
1887	1
1889	3
1890	1
1891	1
1892	2
1893	7
1894	2
1895	5
1896	1
1897	1
1898	2
1899	4
1900	1
1901	4
1902	9
1903	12
1904	7
1905	20
1906	8
1907	20
1908	32
1909	6
1910	22
1911	22
1912	26
1913	89
1914	25
1915	32
1916	41
1917	42
1918	31
1919	90
1920	28
1921	392
1922	72
1923	121
1924	187
1925	190
1926	201
1927	177
1928	86
1929	368
1930	530
1931	316
1932	256
1933	250
1934	731
1935	88
1936	579
1937	440
1938	309
1939	336
1940	289
1941	518
1942	500
1943	444
1944	325
1945	383
1946	310
1947	880
1948	386
1949	318
1950	376
1951	448
1952	295
1953	622
1954	271
1955	377
1956	466
1957	267
1958	480
1959	419
1960	274
1961	657
1962	454
1963	245
1964	709
1965	454
1966	326
1967	859
1968	357
1969	1,092
1970	483
1971	1,044
1972	721
1973	391
1974	631
1975	776
1976	499
1977	444
1978	888
1979	1,185
1980	650
1981	1,001
1982	981
1983	1,310
1984	2,543
1985	772
1986	1,264
1987	1,021
1988	1,371
1989	1,021
1990	983
1991	1,264
1992	1,413
1993	690
1994	834
1995	777
1996	893
1997	936
1998	1,190
1999	1,113
2000	1,391
2001	854
2002	940
2003	1,110
2004	1,219
2005	737
2006	1,179
2007	1,128
2008	829
2009	480
2010	771
2011	1,914
2012	720
2013	821
2014	551
2015	699
2016	540
2017	657
2018	1,319
2019	706
2020	920
2021	841
2022	1,034
2023	344
2024	600
2025	828
2026	525

Download the Data

Data for records on 2003-05-30: 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 20	779
20 to 40	5
40 to 60	2
60 to 80	0
80 to 100	0
100 to 120	1