Weather Records on 21 March 2011

1,451 weather records were set or tied worldwide on 21 March 2011. Highest significance: Minlaton, AU.

Key Facts for 21 March 2011

On 21 March 2011, 1,451 weather records were set or tied at long-record stations worldwide.
606 were record highs and 169 were record lows, counting maximum and minimum temperature.
By timescale, 10 were all-time records, 55 monthly and 1,386 daily.
Minlaton set a daily record precipitation of 37.8 mm (1.5 in) on 21 March 2011.
Across 157 earlier years (1797 to 2026) the same calendar date averaged 476 records.

Record Map

1,451 stations

1,451 station records on 21 March 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 March 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Minlaton	Australia	Record daily precipitation	37.8 mm (1.5 in)	80 of 100 (Exceptional)
Murray Bridge (Tepko)	Australia	Record daily precipitation	45.0 mm (1.8 in)	80 of 100 (Exceptional)
Irymple (Arlington)	Australia	Record daily precipitation	69.8 mm (2.7 in)	75 of 100 (Major)
Clare (Hill River)	Australia	Record daily precipitation	60.2 mm (2.4 in)	72 of 100 (Major)
American River (Redbanks)	Australia	Record daily precipitation	89.0 mm (3.5 in)	72 of 100 (Major)
Murray Lagoon (Hawks Nest)	Australia	Record daily precipitation	51.8 mm (2.0 in)	71 of 100 (Major)
Friant Government Camp	United States	Record daily precipitation	55.4 mm (2.2 in)	70 of 100 (Major)
Tejon Rancho	United States	Record daily precipitation	74.4 mm (2.9 in)	70 of 100 (Major)
Wilmington (Stonehaven)	Australia	Record daily precipitation	154.0 mm (6.1 in)	69 of 100 (Major)
Penneshaw	Australia	Record daily precipitation	30.0 mm (1.2 in)	68 of 100 (Major)
Judal Station	Australia	Record daily precipitation	64.0 mm (2.5 in)	67 of 100 (Major)
Dutton	Australia	Record daily precipitation	72.6 mm (2.9 in)	67 of 100 (Major)
Dodgeville Wwtp	United States	Record daily precipitation	34.8 mm (1.4 in)	67 of 100 (Major)
Gulnare	Australia	Record daily precipitation	40.0 mm (1.6 in)	64 of 100 (Major)
Norddal	Norway	Record daily precipitation	69.5 mm (2.7 in)	64 of 100 (Major)
Cowell	Australia	Record daily precipitation	32.2 mm (1.3 in)	62 of 100 (Major)
Port Lincoln (Woolga)	Australia	Record daily precipitation	39.8 mm (1.6 in)	62 of 100 (Major)
Spalding	Australia	Record daily precipitation	41.0 mm (1.6 in)	62 of 100 (Major)
Blanchetown Lock 1	Australia	Record daily precipitation	61.2 mm (2.4 in)	62 of 100 (Major)
Vik I Sogn III	Norway	Record daily precipitation	49.8 mm (2.0 in)	62 of 100 (Major)
Lovelock	United States	Record daily snowfall	10.2 cm (4.0 in)	62 of 100 (Major)
Wishek	United States	Record snow depth	104.1 cm (41.0 in)	62 of 100 (Major)
Watertown Wwtp	United States	Record daily precipitation	31.0 mm (1.2 in)	62 of 100 (Major)
Harrogate	Australia	Record daily precipitation	44.0 mm (1.7 in)	61 of 100 (Major)
Khartoum	Sudan	Record daily precipitation	62.2 mm (2.4 in)	61 of 100 (Major)
Hartford Wwtp	United States	Record daily precipitation	27.9 mm (1.1 in)	61 of 100 (Major)
Burra (Leighton)	Australia	Record daily precipitation	54.4 mm (2.1 in)	60 of 100 (Major)
Bulken	Norway	Record daily precipitation	72.4 mm (2.9 in)	60 of 100 (Major)
Abu Hamed	Sudan	Record daily precipitation	59.9 mm (2.4 in)	60 of 100 (Major)
Madera	United States	Record daily precipitation	43.9 mm (1.7 in)	60 of 100 (Major)
Brinkworth (Bungaree)	Australia	Record daily precipitation	41.0 mm (1.6 in)	58 of 100 (Notable)
Tanunda	Australia	Record daily precipitation	43.4 mm (1.7 in)	58 of 100 (Notable)
Picton Council Depot	Australia	Record daily precipitation	99.4 mm (3.9 in)	58 of 100 (Notable)
La Rumorosa	Mexico	Record daily precipitation	64.8 mm (2.6 in)	58 of 100 (Notable)
Rindal	Norway	Record daily precipitation	69.0 mm (2.7 in)	58 of 100 (Notable)
Tracy Carbona	United States	Record daily precipitation	27.9 mm (1.1 in)	58 of 100 (Notable)
Wando Vale Station	Australia	Record daily precipitation	85.3 mm (3.4 in)	57 of 100 (Notable)
Peterborough	Australia	Record daily precipitation	42.8 mm (1.7 in)	56 of 100 (Notable)
American River	Australia	Record daily precipitation	62.0 mm (2.4 in)	56 of 100 (Notable)
Wentworth Post Office	Australia	Record daily precipitation	84.2 mm (3.3 in)	56 of 100 (Notable)
Alvundfjord	Norway	Record daily precipitation	72.0 mm (2.8 in)	56 of 100 (Notable)
Neptune Island	Australia	Record daily precipitation	60.8 mm (2.4 in)	55 of 100 (Notable)
Yacka	Australia	Record daily precipitation	32.0 mm (1.3 in)	55 of 100 (Notable)
Point Pass	Australia	Record daily precipitation	42.0 mm (1.7 in)	55 of 100 (Notable)
Karoonda	Australia	Record daily precipitation	30.4 mm (1.2 in)	55 of 100 (Notable)
Mount Schank (Jethia)	Australia	Record daily precipitation	64.4 mm (2.5 in)	55 of 100 (Notable)
Lake Victoria Storage	Australia	Record daily precipitation	50.3 mm (2.0 in)	55 of 100 (Notable)
Mildura Airport	Australia	Record daily precipitation	85.2 mm (3.4 in)	55 of 100 (Notable)
Marengo	United States	Record daily precipitation	40.9 mm (1.6 in)	55 of 100 (Notable)
S Haven	United States	Record daily precipitation	38.1 mm (1.5 in)	55 of 100 (Notable)
Booborowie	Australia	Record daily precipitation	51.0 mm (2.0 in)	54 of 100 (Notable)
Whyte Yarcowie	Australia	Record daily precipitation	47.0 mm (1.9 in)	54 of 100 (Notable)
Fairmont	United States	Record daily precipitation	95.3 mm (3.8 in)	54 of 100 (Notable)
Palos Verdes Es Fc43D	United States	Record daily precipitation	63.0 mm (2.5 in)	54 of 100 (Notable)
Wirrabara	Australia	Record daily precipitation	38.2 mm (1.5 in)	53 of 100 (Notable)
Sturt Vale	Australia	Record daily precipitation	29.6 mm (1.2 in)	53 of 100 (Notable)
Caltowie	Australia	Record daily precipitation	48.8 mm (1.9 in)	53 of 100 (Notable)
Warooka	Australia	Record daily precipitation	71.4 mm (2.8 in)	53 of 100 (Notable)
Keyneton	Australia	Record daily precipitation	65.0 mm (2.6 in)	53 of 100 (Notable)
Sedan	Australia	Record daily precipitation	61.8 mm (2.4 in)	53 of 100 (Notable)

Counts by Type and Timescale

1,451 records

Records set or tied on 21 March 2011 by type: Highest daily maximum 299, Lowest daily maximum 112, Highest daily minimum 307, Lowest daily minimum 57, Heaviest daily rainfall 610, Heaviest daily snowfall 41, Deepest snow cover 25.

Records on 21 March 2011 by type
Record type	Records
Highest daily maximum	299
Lowest daily maximum	112
Highest daily minimum	307
Lowest daily minimum	57
Heaviest daily rainfall	610
Heaviest daily snowfall	41
Deepest snow cover	25

Records on 21 March 2011 by timescale: all-time 10, monthly 55, daily 1,386.

How Much Records Were Beaten By

1,173 broken records

Margins by which the 1,173 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 787.0. Ties are not counted.

Top 20 by Significance

21 March 2011

Top 20 records on 21 March 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 March 2011	Minlaton, AU	daily rain	37.8 mm (1.5 in)	30.2 mm (1.2 in)	110 years	80 of 100 (Exceptional)
21 March 2011	Murray Bridge (Tepko), AU	daily rain	45.0 mm (1.8 in)	34.1 mm (1.3 in)	116 years	80 of 100 (Exceptional)
21 March 2011	Irymple (Arlington), AU	daily rain	69.8 mm (2.7 in)	55.6 mm (2.2 in)	84 years	75 of 100 (Major)
21 March 2011	Clare (Hill River), AU	daily rain	60.2 mm (2.4 in)	39.6 mm (1.6 in)	76 years	72 of 100 (Major)
21 March 2011	American River (Redbanks), AU	all-time rain	89.0 mm (3.5 in)	24.0 mm (0.9 in)	31 years	72 of 100 (Major)
21 March 2011	Murray Lagoon (Hawks Nest), AU	daily rain	51.8 mm (2.0 in)	32.5 mm (1.3 in)	76 years	71 of 100 (Major)
21 March 2011	Friant Government Camp, US	daily rain	55.4 mm (2.2 in)	29.0 mm (1.1 in)	90 years	70 of 100 (Major)
21 March 2011	Tejon Rancho, US	all-time rain	74.4 mm (2.9 in)	10.9 mm (0.4 in)	96 years	70 of 100 (Major)
21 March 2011	Wilmington (Stonehaven), AU	all-time rain	154.0 mm (6.1 in)	70.8 mm (2.8 in)	22 years	69 of 100 (Major)
21 March 2011	Penneshaw, AU	daily rain	30.0 mm (1.2 in)	17.8 mm (0.7 in)	76 years	68 of 100 (Major)
21 March 2011	Judal Station, AU	daily rain	64.0 mm (2.5 in)	39.4 mm (1.6 in)	88 years	67 of 100 (Major)
21 March 2011	Dutton, AU	daily rain	72.6 mm (2.9 in)	47.2 mm (1.9 in)	76 years	67 of 100 (Major)
21 March 2011	Dodgeville Wwtp, US	daily rain	34.8 mm (1.4 in)	24.1 mm (0.9 in)	112 years	67 of 100 (Major)
21 March 2011	Gulnare, AU	daily rain	40.0 mm (1.6 in)	26.5 mm (1.0 in)	76 years	64 of 100 (Major)
21 March 2011	Norddal, NO	monthly rain	69.5 mm (2.7 in)	17.5 mm (0.7 in)	66 years	64 of 100 (Major)
21 March 2011	Cowell, AU	daily rain	32.2 mm (1.3 in)	21.5 mm (0.8 in)	76 years	62 of 100 (Major)
21 March 2011	Port Lincoln (Woolga), AU	daily rain	39.8 mm (1.6 in)	24.1 mm (0.9 in)	76 years	62 of 100 (Major)
21 March 2011	Spalding, AU	daily rain	41.0 mm (1.6 in)	26.5 mm (1.0 in)	76 years	62 of 100 (Major)
21 March 2011	Blanchetown Lock 1, AU	monthly rain	61.2 mm (2.4 in)	30.4 mm (1.2 in)	28 years	62 of 100 (Major)
21 March 2011	Vik I Sogn III, NO	daily rain	49.8 mm (2.0 in)	19.0 mm (0.7 in)	89 years	62 of 100 (Major)

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 2011

Records set or tied on this calendar date in each year from 1797 to 2011. 2011 had 1,451 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 2011-03-21: 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 100	1,156
100 to 200	12
200 to 300	3
300 to 400	0
400 to 500	1
500 to 600	0
600 to 700	0
700 to 800	1