Weather Records on 21 March 2003

1,073 weather records were set or tied worldwide on 21 March 2003. Highest significance: Georgetown, US.

Key Facts for 21 March 2003

On 21 March 2003, 1,073 weather records were set or tied at long-record stations worldwide.
348 were record highs and 280 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 34 monthly and 1,037 daily.
Georgetown set a daily record snow depth of 111.8 cm (44.0 in) on 21 March 2003.
Across 157 earlier years (1797 to 2026) the same calendar date averaged 479 records.

Record Map

1,073 stations

1,073 station records on 21 March 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 March 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Georgetown	United States	Record snow depth	111.8 cm (44.0 in)	76 of 100 (Major)
Opossum Bay	Australia	Record daily precipitation	74.4 mm (2.9 in)	68 of 100 (Major)
Hatteras	United States	Record daily precipitation	69.6 mm (2.7 in)	68 of 100 (Major)
Cherry Creek Dam	United States	Record snow depth	71.1 cm (28.0 in)	66 of 100 (Major)
Canton 4 SE	United States	Record daily precipitation	29.7 mm (1.2 in)	66 of 100 (Major)
Cape Bruny Lighthouse	Australia	Record daily precipitation	49.2 mm (1.9 in)	64 of 100 (Major)
Cheesman	United States	Record snow depth	50.8 cm (20.0 in)	63 of 100 (Major)
Falls City 2 SSW	United States	Record daily precipitation	67.3 mm (2.6 in)	62 of 100 (Major)
Astoria AP (Port of)	United States	Record daily precipitation	63.0 mm (2.5 in)	59 of 100 (Notable)
Mount Rumney (Mount Rumney Roa	Australia	Record daily precipitation	61.2 mm (2.4 in)	57 of 100 (Notable)
Bardufoss	Norway	Record daily precipitation	25.8 mm (1.0 in)	57 of 100 (Notable)
Westcliffe	United States	Record snow depth	45.7 cm (18.0 in)	57 of 100 (Notable)
Dover	Australia	Record daily precipitation	64.2 mm (2.5 in)	56 of 100 (Notable)
Cherry Creek Dam	United States	Record daily precipitation	73.7 mm (2.9 in)	55 of 100 (Notable)
Andoya	Norway	Record daily precipitation	41.5 mm (1.6 in)	53 of 100 (Notable)
Bream Creek (Stroud)	Australia	Record daily precipitation	75.0 mm (3.0 in)	52 of 100 (Notable)
Copping	Australia	Record daily precipitation	90.8 mm (3.6 in)	52 of 100 (Notable)
Evergreen	United States	Record snow depth	101.6 cm (40.0 in)	52 of 100 (Notable)
Middleton Post Office	Australia	Record daily precipitation	69.4 mm (2.7 in)	51 of 100 (Notable)
Castle Rock	United States	Record snow depth	96.5 cm (38.0 in)	51 of 100 (Notable)
Lunawanna	Australia	Record daily precipitation	57.6 mm (2.3 in)	50 of 100 (Notable)
Lakewood	United States	Record snow depth	50.8 cm (20.0 in)	50 of 100 (Notable)
Woodbridge	Australia	Record daily precipitation	83.6 mm (3.3 in)	49 of 100 (Notable)
Seven Mile Beach (Royal Hobart	Australia	Record daily precipitation	57.6 mm (2.3 in)	49 of 100 (Notable)
Port Davey (Melaleuca)	Australia	Record daily precipitation	74.8 mm (2.9 in)	49 of 100 (Notable)
Rossvatn - Heggmo	Norway	Record daily precipitation	60.7 mm (2.4 in)	49 of 100 (Notable)
Surigao	Philippines	Record high minimum temperature	28.0 C (82.4 F)	49 of 100 (Notable)
W Chester 2 NW	United States	Record daily precipitation	40.4 mm (1.6 in)	48 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record daily precipitation	50.0 mm (2.0 in)	47 of 100 (Notable)
Archer	United States	Record snow depth	38.1 cm (15.0 in)	47 of 100 (Notable)
Georgetown	United States	Record daily snowfall	25.4 cm (10.0 in)	46 of 100 (Notable)
Lumberton	United States	Record daily precipitation	59.7 mm (2.4 in)	45 of 100 (Notable)
Grays Rvr Hatchery	United States	Record daily precipitation	82.6 mm (3.3 in)	45 of 100 (Notable)
Reine	Norway	Record daily precipitation	61.0 mm (2.4 in)	44 of 100 (Notable)
Ocala	United States	Record high minimum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Highmarket 2W	United States	Record daily precipitation	30.5 mm (1.2 in)	44 of 100 (Notable)
Equinunk 2 NW	United States	Record daily precipitation	43.2 mm (1.7 in)	44 of 100 (Notable)
Manila	United States	Record snow depth	15.2 cm (6.0 in)	44 of 100 (Notable)
Orlando Executive AP	United States	Record high minimum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Kellevie	Australia	Record daily precipitation	92.0 mm (3.6 in)	43 of 100 (Notable)
Killora (Grasmere)	Australia	Record daily precipitation	59.2 mm (2.3 in)	43 of 100 (Notable)
Mo I Rana III	Norway	Record daily precipitation	58.0 mm (2.3 in)	43 of 100 (Notable)
Krakmo	Norway	Record daily precipitation	55.6 mm (2.2 in)	43 of 100 (Notable)
Norfolk	United States	Record daily precipitation	27.9 mm (1.1 in)	43 of 100 (Notable)
Injune Post Office	Australia	Record daily precipitation	39.8 mm (1.6 in)	42 of 100 (Notable)
Hobart Airport	Australia	Record daily precipitation	42.8 mm (1.7 in)	42 of 100 (Notable)
Sandford (Maydena)	Australia	Record daily precipitation	78.0 mm (3.1 in)	42 of 100 (Notable)
Deland 1 SSE	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Palatka	United States	Record high minimum temperature	22.2 C (72.0 F)	42 of 100 (Notable)
Albion	United States	Record daily precipitation	30.5 mm (1.2 in)	42 of 100 (Notable)
Liberty 1 NE	United States	Record daily precipitation	36.3 mm (1.4 in)	42 of 100 (Notable)
Gladstone (Old Post Office)	Australia	Record daily precipitation	38.0 mm (1.5 in)	41 of 100 (Notable)
Bridgewater (Treatment Plant)	Australia	Record daily precipitation	25.4 mm (1.0 in)	41 of 100 (Notable)
Ascencion (Smn)	Mexico	Record high minimum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Wattle Hill	Australia	Record daily precipitation	69.0 mm (2.7 in)	40 of 100 (Notable)
Logansport Cicott St	United States	Record high minimum temperature	9.4 C (48.9 F)	40 of 100 (Notable)
Bellefontaine	United States	Record high minimum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Myerstown	United States	Record daily precipitation	43.9 mm (1.7 in)	40 of 100 (Notable)
Chugwater	United States	Record snow depth	30.5 cm (12.0 in)	40 of 100 (Notable)
Carramar	Australia	Record daily precipitation	43.0 mm (1.7 in)	39 of 100 (Notable)

Counts by Type and Timescale

1,073 records

Records set or tied on 21 March 2003 by type: Highest daily maximum 143, Lowest daily maximum 72, Highest daily minimum 205, Lowest daily minimum 208, Heaviest daily rainfall 411, Heaviest daily snowfall 11, Deepest snow cover 23.

Records on 21 March 2003 by type
Record type	Records
Highest daily maximum	143
Lowest daily maximum	72
Highest daily minimum	205
Lowest daily minimum	208
Heaviest daily rainfall	411
Heaviest daily snowfall	11
Deepest snow cover	23

Records on 21 March 2003 by timescale: all-time 2, monthly 34, daily 1,037.

How Much Records Were Beaten By

886 broken records

Margins by which the 886 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 940.0. Ties are not counted.

Top 20 by Significance

21 March 2003

Top 20 records on 21 March 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 March 2003	Georgetown, US	daily snow depth	111.8 cm (44.0 in)	94.0 cm (37.0 in)	90 years	76 of 100 (Major)
21 March 2003	Opossum Bay, AU	daily rain	74.4 mm (2.9 in)	42.1 mm (1.7 in)	72 years	68 of 100 (Major)
21 March 2003	Hatteras, US	daily rain	69.6 mm (2.7 in)	38.4 mm (1.5 in)	101 years	68 of 100 (Major)
21 March 2003	Cherry Creek Dam, US	all-time snow depth	71.1 cm (28.0 in)	20.3 cm (8.0 in)	19 years	66 of 100 (Major)
21 March 2003	Canton 4 SE, US	daily rain	29.7 mm (1.2 in)	17.5 mm (0.7 in)	101 years	66 of 100 (Major)
21 March 2003	Cape Bruny Lighthouse, AU	daily rain	49.2 mm (1.9 in)	21.3 mm (0.8 in)	72 years	64 of 100 (Major)
21 March 2003	Cheesman, US	daily snow depth	50.8 cm (20.0 in)	30.5 cm (12.0 in)	44 years	63 of 100 (Major)
21 March 2003	Falls City 2 SSW, US	daily rain	67.3 mm (2.6 in)	33.0 mm (1.3 in)	97 years	62 of 100 (Major)
21 March 2003	Astoria AP (Port of), US	daily rain	63.0 mm (2.5 in)	39.6 mm (1.6 in)	48 years	59 of 100 (Notable)
21 March 2003	Mount Rumney (Mount Rumney Roa, AU	daily rain	61.2 mm (2.4 in)	49.5 mm (1.9 in)	44 years	57 of 100 (Notable)
21 March 2003	Bardufoss, NO	daily rain	25.8 mm (1.0 in)	16.0 mm (0.6 in)	49 years	57 of 100 (Notable)
21 March 2003	Westcliffe, US	daily snow depth	45.7 cm (18.0 in)	20.3 cm (8.0 in)	84 years	57 of 100 (Notable)
21 March 2003	Dover, AU	daily rain	64.2 mm (2.5 in)	32.4 mm (1.3 in)	32 years	56 of 100 (Notable)
21 March 2003	Cherry Creek Dam, US	monthly rain	73.7 mm (2.9 in)	24.7 mm (1.0 in)	0 years	55 of 100 (Notable)
21 March 2003	Andoya, NO	daily rain	41.5 mm (1.6 in)	27.5 mm (1.1 in)	30 years	53 of 100 (Notable)
21 March 2003	Bream Creek (Stroud), AU	daily rain	75.0 mm (3.0 in)	43.0 mm (1.7 in)	32 years	52 of 100 (Notable)
21 March 2003	Copping, AU	daily rain	90.8 mm (3.6 in)	54.5 mm (2.1 in)	32 years	52 of 100 (Notable)
21 March 2003	Evergreen, US	daily snow depth	101.6 cm (40.0 in)	91.4 cm (36.0 in)	29 years	52 of 100 (Notable)
21 March 2003	Middleton Post Office, AU	daily rain	69.4 mm (2.7 in)	33.1 mm (1.3 in)	32 years	51 of 100 (Notable)
21 March 2003	Castle Rock, US	daily snow depth	96.5 cm (38.0 in)	88.9 cm (35.0 in)	4 years	51 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

1797 to 2003

Records set or tied on this calendar date in each year from 1797 to 2003. 2003 had 1,073 records.

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

Records on 03-21 in each year
Year	Records
1797	2
1805	1
1806	1
1822	1
1830	1
1836	1
1837	1
1845	1
1846	1
1850	1
1852	2
1857	1
1865	7
1874	1
1877	1
1880	1
1881	1
1883	2
1884	1
1885	5
1886	2
1888	1
1890	3
1892	1
1893	1
1894	1
1895	1
1896	2
1897	2
1898	3
1899	4
1900	4
1901	9
1902	18
1903	23
1904	17
1905	6
1906	3
1907	14
1908	3
1909	11
1910	10
1911	10
1912	36
1913	97
1914	71
1915	27
1916	44
1917	43
1918	43
1919	29
1920	90
1921	96
1922	50
1923	72
1924	96
1925	141
1926	282
1927	179
1928	293
1929	104
1930	99
1931	638
1932	305
1933	235
1934	114
1935	675
1936	225
1937	172
1938	783
1939	280
1940	366
1941	311
1942	330
1943	217
1944	556
1945	294
1946	570
1947	192
1948	948
1949	330
1950	398
1951	779
1952	689
1953	342
1954	211
1955	1,124
1956	686
1957	373
1958	619
1959	230
1960	892
1961	268
1962	548
1963	298
1964	333
1965	1,961
1966	464
1967	487
1968	798
1969	219
1970	612
1971	358
1972	519
1973	385
1974	1,097
1975	751
1976	710
1977	376
1978	838
1979	656
1980	775
1981	676
1982	850
1983	1,673
1984	835
1985	503
1986	1,170
1987	948
1988	1,155
1989	1,396
1990	1,380
1991	1,446
1992	877
1993	687
1994	684
1995	1,141
1996	1,119
1997	1,670
1998	935
1999	1,044
2000	802
2001	1,342
2002	1,593
2003	1,073
2004	1,511
2005	649
2006	1,417
2007	1,220
2008	734
2009	558
2010	1,134
2011	1,451
2012	2,854
2013	727
2014	639
2015	568
2016	553
2017	1,117
2018	809
2019	649
2020	445
2021	489
2022	615
2023	815
2024	432
2025	845
2026	2,614

Download the Data

Data for records on 2003-03-21: 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 200	876
200 to 400	7
400 to 600	0
600 to 800	0
800 to 1000	3