Weather Records on 31 March 2011

1,020 weather records were set or tied worldwide on 31 March 2011. Highest significance: Te Kowai Exp STN, AU.

Key Facts for 31 March 2011

On 31 March 2011, 1,020 weather records were set or tied at long-record stations worldwide.
487 were record highs and 251 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 47 monthly and 971 daily.
Te Kowai Exp STN set a daily record precipitation of 237.5 mm (9.4 in) on 31 March 2011.
Across 155 earlier years (1808 to 2026) the same calendar date averaged 503 records.

Record Map

1,020 stations

1,020 station records on 31 March 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 March 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Te Kowai Exp STN	Australia	Record daily precipitation	237.5 mm (9.4 in)	74 of 100 (Major)
Riverdale	United States	Record daily precipitation	45.7 mm (1.8 in)	74 of 100 (Major)
Startup 1 E	United States	Record daily precipitation	63.5 mm (2.5 in)	72 of 100 (Major)
Saint Leo	United States	Record daily precipitation	127.0 mm (5.0 in)	68 of 100 (Major)
Pleystowe Sugar Mill	Australia	Record daily precipitation	220.0 mm (8.7 in)	64 of 100 (Major)
Wishek	United States	Record snow depth	109.2 cm (43.0 in)	62 of 100 (Major)
St Petersburg	United States	Record daily precipitation	99.1 mm (3.9 in)	59 of 100 (Notable)
Leavenworth 3 S	United States	Record daily precipitation	33.5 mm (1.3 in)	58 of 100 (Notable)
Farleigh Co-Op Sugar Mill	Australia	Record daily precipitation	215.8 mm (8.5 in)	56 of 100 (Notable)
Amelia Courthouse	United States	Record daily precipitation	73.7 mm (2.9 in)	53 of 100 (Notable)
Tampa Intl AP	United States	Record daily precipitation	101.3 mm (4.0 in)	53 of 100 (Notable)
Sonnette 7 SW	United States	Record daily precipitation	25.9 mm (1.0 in)	52 of 100 (Notable)
Sedro-Woolley	United States	Record daily precipitation	54.6 mm (2.1 in)	52 of 100 (Notable)
Concrete Ppl Fish STN	United States	Record daily precipitation	60.5 mm (2.4 in)	51 of 100 (Notable)
Kennewick	United States	Record high minimum temperature	13.3 C (55.9 F)	51 of 100 (Notable)
Mud Mtn Dam	United States	Record daily precipitation	37.6 mm (1.5 in)	51 of 100 (Notable)
Riverton	United States	Record high minimum temperature	8.9 C (48.0 F)	51 of 100 (Notable)
Eton State Water Depot	Australia	Record daily precipitation	174.0 mm (6.9 in)	50 of 100 (Notable)
Cedar Lake	United States	Record daily precipitation	84.8 mm (3.3 in)	50 of 100 (Notable)
Longmire Rainier Nps	United States	Record daily precipitation	71.6 mm (2.8 in)	50 of 100 (Notable)
Wilson Beach	Australia	Record daily precipitation	358.2 mm (14.1 in)	49 of 100 (Notable)
San Luis Obispo Poly	United States	Record high minimum temperature	20.0 C (68.0 F)	48 of 100 (Notable)
Plain	United States	Record daily precipitation	29.2 mm (1.1 in)	47 of 100 (Notable)
Mtn Lake	United States	Record daily precipitation	80.0 mm (3.1 in)	46 of 100 (Notable)
Baring	United States	Record daily precipitation	100.6 mm (4.0 in)	46 of 100 (Notable)
Sultan Ismail Petra	Malaysia	Record daily precipitation	88.9 mm (3.5 in)	45 of 100 (Notable)
Suphan Buri	Thailand	Record low minimum temperature	18.5 C (65.3 F)	45 of 100 (Notable)
Hua Hin	Thailand	Record low maximum temperature	27.3 C (81.1 F)	45 of 100 (Notable)
Phuket Airport	Thailand	Record low maximum temperature	27.3 C (81.1 F)	45 of 100 (Notable)
Lincoln Rs	United States	Record daily precipitation	33.0 mm (1.3 in)	45 of 100 (Notable)
North French Creek	United States	Record daily precipitation	68.6 mm (2.7 in)	44 of 100 (Notable)
Elsinore	United States	Record high maximum temperature	35.0 C (95.0 F)	43 of 100 (Notable)
Plant City	United States	Record daily precipitation	71.1 mm (2.8 in)	43 of 100 (Notable)
Bowie	United States	Record low maximum temperature	2.8 C (37.0 F)	43 of 100 (Notable)
Moscow U of I	United States	Record high minimum temperature	8.9 C (48.0 F)	42 of 100 (Notable)
Pomeroy	United States	Record high minimum temperature	11.1 C (52.0 F)	42 of 100 (Notable)
Blue Range	Australia	Record daily precipitation	52.0 mm (2.0 in)	41 of 100 (Notable)
Bangkok Metropolis	Thailand	Record low maximum temperature	29.0 C (84.2 F)	41 of 100 (Notable)
Hardy	United States	Record low maximum temperature	8.3 C (46.9 F)	41 of 100 (Notable)
Mackay M.O	Australia	Record daily precipitation	157.2 mm (6.2 in)	40 of 100 (Notable)
Sanya	China	Record low minimum temperature	13.7 C (56.7 F)	40 of 100 (Notable)
Everett	United States	Record high minimum temperature	10.0 C (50.0 F)	40 of 100 (Notable)
Mt Adams Rs	United States	Record high minimum temperature	8.3 C (46.9 F)	40 of 100 (Notable)
Palmer Job Corps	United States	Record daily snowfall	12.7 cm (5.0 in)	40 of 100 (Notable)
Kanchanaburi	Thailand	Record low minimum temperature	18.5 C (65.3 F)	39 of 100 (Notable)
Don Muang	Thailand	Record low minimum temperature	19.8 C (67.6 F)	39 of 100 (Notable)
Tarpon Spgs Sewage Plt	United States	Record daily precipitation	165.1 mm (6.5 in)	39 of 100 (Notable)
Santuck	United States	Record low maximum temperature	10.0 C (50.0 F)	39 of 100 (Notable)
Copper Bottom	United States	Record daily precipitation	27.9 mm (1.1 in)	39 of 100 (Notable)
Bridgeport 5 NW	United States	Record daily precipitation	52.1 mm (2.1 in)	38 of 100 (Notable)
Calistoga	United States	Record high maximum temperature	29.4 C (84.9 F)	38 of 100 (Notable)
Twentynine Palms	United States	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Aberdeen	United States	Record daily precipitation	74.9 mm (2.9 in)	38 of 100 (Notable)
Tolt S Fk Rsvr	United States	Record daily precipitation	100.8 mm (4.0 in)	38 of 100 (Notable)
Emery Creek	United States	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Torungen Fyr	Norway	Record daily precipitation	26.9 mm (1.1 in)	37 of 100 (Notable)
Ubon Ratchathani	Thailand	Record low minimum temperature	15.6 C (60.1 F)	37 of 100 (Notable)
Aguila	United States	Record high minimum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
Los Gatos	United States	Record high minimum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Ashley	United States	Record snow depth	63.5 cm (25.0 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,020 records

Records set or tied on 31 March 2011 by type: Highest daily maximum 183, Lowest daily maximum 168, Highest daily minimum 304, Lowest daily minimum 83, Heaviest daily rainfall 222, Heaviest daily snowfall 24, Deepest snow cover 36.

Records on 31 March 2011 by type
Record type	Records
Highest daily maximum	183
Lowest daily maximum	168
Highest daily minimum	304
Lowest daily minimum	83
Heaviest daily rainfall	222
Heaviest daily snowfall	24
Deepest snow cover	36

Records on 31 March 2011 by timescale: all-time 2, monthly 47, daily 971.

How Much Records Were Beaten By

763 broken records

Margins by which the 763 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 813.0. Ties are not counted.

Top 20 by Significance

31 March 2011

Top 20 records on 31 March 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 March 2011	Te Kowai Exp STN, AU	daily rain	237.5 mm (9.4 in)	185.4 mm (7.3 in)	81 years	74 of 100 (Major)
31 March 2011	Riverdale, US	monthly rain	45.7 mm (1.8 in)	33.0 mm (1.3 in)	62 years	74 of 100 (Major)
31 March 2011	Startup 1 E, US	daily rain	63.5 mm (2.5 in)	33.0 mm (1.3 in)	80 years	72 of 100 (Major)
31 March 2011	Saint Leo, US	daily rain	127.0 mm (5.0 in)	58.4 mm (2.3 in)	86 years	68 of 100 (Major)
31 March 2011	Pleystowe Sugar Mill, AU	daily rain	220.0 mm (8.7 in)	164.1 mm (6.5 in)	48 years	64 of 100 (Major)
31 March 2011	Wishek, US	daily snow depth	109.2 cm (43.0 in)	81.3 cm (32.0 in)	40 years	62 of 100 (Major)
31 March 2011	St Petersburg, US	daily rain	99.1 mm (3.9 in)	43.2 mm (1.7 in)	80 years	59 of 100 (Notable)
31 March 2011	Leavenworth 3 S, US	daily rain	33.5 mm (1.3 in)	14.7 mm (0.6 in)	80 years	58 of 100 (Notable)
31 March 2011	Farleigh Co-Op Sugar Mill, AU	daily rain	215.8 mm (8.5 in)	164.8 mm (6.5 in)	21 years	56 of 100 (Notable)
31 March 2011	Amelia Courthouse, US	daily rain	73.7 mm (2.9 in)	51.3 mm (2.0 in)	34 years	53 of 100 (Notable)
31 March 2011	Tampa Intl AP, US	daily rain	101.3 mm (4.0 in)	66.8 mm (2.6 in)	20 years	53 of 100 (Notable)
31 March 2011	Sonnette 7 SW, US	daily rain	25.9 mm (1.0 in)	21.8 mm (0.9 in)	29 years	52 of 100 (Notable)
31 March 2011	Sedro-Woolley, US	daily rain	54.6 mm (2.1 in)	18.3 mm (0.7 in)	52 years	52 of 100 (Notable)
31 March 2011	Concrete Ppl Fish STN, US	daily rain	60.5 mm (2.4 in)	24.4 mm (1.0 in)	52 years	51 of 100 (Notable)
31 March 2011	Kennewick, US	monthly high min	13.3 C (55.9 F)	0.5 C (0.9 F)	116 years	51 of 100 (Notable)
31 March 2011	Mud Mtn Dam, US	daily rain	37.6 mm (1.5 in)	22.4 mm (0.9 in)	50 years	51 of 100 (Notable)
31 March 2011	Riverton, US	monthly high min	8.9 C (48.0 F)	1.1 C (2.0 F)	104 years	51 of 100 (Notable)
31 March 2011	Eton State Water Depot, AU	daily rain	174.0 mm (6.9 in)	140.0 mm (5.5 in)	21 years	50 of 100 (Notable)
31 March 2011	Cedar Lake, US	daily rain	84.8 mm (3.3 in)	22.3 mm (0.9 in)	80 years	50 of 100 (Notable)
31 March 2011	Longmire Rainier Nps, US	daily rain	71.6 mm (2.8 in)	51.0 mm (2.0 in)	25 years	50 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

1808 to 2011

Records set or tied on this calendar date in each year from 1808 to 2011. 2011 had 1,020 records.

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

Records on 03-31 in each year
Year	Records
1808	2
1815	2
1843	1
1848	1
1850	1
1854	1
1855	3
1856	2
1859	3
1865	2
1869	1
1872	4
1873	1
1874	1
1876	1
1878	1
1880	2
1881	1
1883	1
1887	2
1889	1
1890	1
1891	1
1892	2
1893	3
1896	3
1897	2
1898	5
1899	3
1900	9
1901	7
1902	3
1903	14
1904	16
1905	29
1906	10
1907	11
1908	5
1909	4
1910	45
1911	24
1912	18
1913	62
1914	16
1915	57
1916	17
1917	52
1918	42
1919	86
1920	65
1921	238
1922	102
1923	459
1924	160
1925	110
1926	306
1927	198
1928	98
1929	323
1930	137
1931	365
1932	360
1933	311
1934	181
1935	310
1936	1,242
1937	258
1938	649
1939	197
1940	697
1941	250
1942	245
1943	794
1944	327
1945	778
1946	897
1947	658
1948	355
1949	452
1950	579
1951	490
1952	382
1953	302
1954	549
1955	286
1956	767
1957	373
1958	414
1959	622
1960	327
1961	525
1962	547
1963	987
1964	1,345
1965	457
1966	845
1967	1,025
1968	504
1969	1,126
1970	945
1971	516
1972	427
1973	755
1974	852
1975	1,032
1976	519
1977	1,021
1978	1,362
1979	722
1980	640
1981	1,060
1982	926
1983	564
1984	532
1985	1,471
1986	1,507
1987	2,256
1988	850
1989	1,335
1990	842
1991	634
1992	747
1993	668
1994	871
1995	940
1996	743
1997	962
1998	2,587
1999	1,100
2000	581
2001	686
2002	861
2003	1,722
2004	1,055
2005	861
2006	1,088
2007	1,150
2008	1,471
2009	927
2010	984
2011	1,020
2012	942
2013	753
2014	631
2015	861
2016	823
2017	1,423
2018	663
2019	544
2020	534
2021	949
2022	683
2023	1,128
2024	488
2025	942
2026	1,275

Download the Data

Data for records on 2011-03-31: 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 2026-10-16 (16 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 200	760
200 to 400	2
400 to 600	0
600 to 800	0
800 to 1000	1