Weather Records on 21 March 1931

638 weather records were set or tied worldwide on 21 March 1931. Highest significance: Normanstone Well, AU.

Key Facts for 21 March 1931

On 21 March 1931, 638 weather records were set or tied at long-record stations worldwide.
86 were record highs and 23 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 9 monthly and 628 daily.
Normanstone Well set a monthly record daily precipitation of 81.3 mm (3.2 in) on 21 March 1931.
Across 157 earlier years (1797 to 2026) the same calendar date averaged 482 records.

Record Map

638 stations

638 station records on 21 March 1931 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 March 1931: highest significance records shown on the map
Station	Country	Type	Value	Significance
Normanstone Well	Australia	Record daily precipitation	81.3 mm (3.2 in)	62 of 100 (Major)
Murrurundi Post Office	Australia	Record daily precipitation	76.5 mm (3.0 in)	59 of 100 (Notable)
Gamalally	Australia	Record daily precipitation	56.1 mm (2.2 in)	55 of 100 (Notable)
Coolanbilla	Australia	Record daily precipitation	66.0 mm (2.6 in)	52 of 100 (Notable)
Maneroo	Australia	Record daily precipitation	78.7 mm (3.1 in)	50 of 100 (Notable)
Yan Yean	Australia	Record daily precipitation	48.8 mm (1.9 in)	48 of 100 (Notable)
Quipolly Creek Post Office	Australia	Record daily precipitation	70.6 mm (2.8 in)	47 of 100 (Notable)
Cape Otway Lighthouse	Australia	Record daily precipitation	36.3 mm (1.4 in)	47 of 100 (Notable)
Hawkesdale (Post Office)	Australia	Record daily precipitation	39.6 mm (1.6 in)	46 of 100 (Notable)
Mullaley (Garrawilla)	Australia	Record daily precipitation	62.0 mm (2.4 in)	45 of 100 (Notable)
Scotsburn (Mount Boninyong)	Australia	Record daily precipitation	47.8 mm (1.9 in)	45 of 100 (Notable)
Woolsthorpe	Australia	Record daily precipitation	34.3 mm (1.4 in)	45 of 100 (Notable)
Collarenebri (Albert St)	Australia	Record daily precipitation	64.5 mm (2.5 in)	44 of 100 (Notable)
Uccle	Belgium	Record high minimum temperature	10.7 C (51.3 F)	43 of 100 (Notable)
Isisford Post Office	Australia	Record daily precipitation	81.8 mm (3.2 in)	42 of 100 (Notable)
Warrumbungle Post Office	Australia	Record daily precipitation	68.3 mm (2.7 in)	42 of 100 (Notable)
Willow Tree (Valais)	Australia	Record daily precipitation	85.1 mm (3.4 in)	41 of 100 (Notable)
Bruthen (Post Office)	Australia	Record daily precipitation	37.8 mm (1.5 in)	40 of 100 (Notable)
Apollo Bay	Australia	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Cassilis Post Office	Australia	Record daily precipitation	50.8 mm (2.0 in)	38 of 100 (Notable)
Goodooga (Brenda)	Australia	Record daily precipitation	34.8 mm (1.4 in)	37 of 100 (Notable)
Branxton 2	Australia	Record daily precipitation	54.4 mm (2.1 in)	37 of 100 (Notable)
Premer (Eden Moor)	Australia	Record daily precipitation	56.1 mm (2.2 in)	37 of 100 (Notable)
Nandoura	Australia	Record daily precipitation	61.0 mm (2.4 in)	37 of 100 (Notable)
Coonabarabran (Namoi Street)	Australia	Record daily precipitation	57.4 mm (2.3 in)	37 of 100 (Notable)
Bairnsdale 1	Australia	Record daily precipitation	53.3 mm (2.1 in)	37 of 100 (Notable)
Ringwood 2	Australia	Record daily precipitation	40.6 mm (1.6 in)	37 of 100 (Notable)
Allansford	Australia	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Doreen	Australia	Record daily precipitation	64.3 mm (2.5 in)	36 of 100 (Notable)
Pine Ridge (Mooki Springs)	Australia	Record daily precipitation	53.6 mm (2.1 in)	36 of 100 (Notable)
Chikhalda Sr	India	Record daily precipitation	30.7 mm (1.2 in)	36 of 100 (Notable)
Terrick Terrick Stud	Australia	Record daily precipitation	64.8 mm (2.6 in)	35 of 100 (Notable)
Mount Morris	Australia	Record daily precipitation	73.2 mm (2.9 in)	35 of 100 (Notable)
Narrabri Bowling Club	Australia	Record daily precipitation	67.8 mm (2.7 in)	35 of 100 (Notable)
Millers Creek	Australia	Record daily precipitation	54.6 mm (2.1 in)	35 of 100 (Notable)
Yarra Junction (Gilderoy)	Australia	Record daily precipitation	47.2 mm (1.9 in)	35 of 100 (Notable)
Johanna Glen	Australia	Record daily precipitation	37.1 mm (1.5 in)	35 of 100 (Notable)
Weilmoringle	Australia	Record daily precipitation	32.8 mm (1.3 in)	34 of 100 (Routine)
Baradine Post Office	Australia	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Quirindi Post Office	Australia	Record daily precipitation	64.5 mm (2.5 in)	34 of 100 (Routine)
Cassilis (Dalkeith)	Australia	Record daily precipitation	50.8 mm (2.0 in)	34 of 100 (Routine)
Boxwood	Australia	Record daily precipitation	53.8 mm (2.1 in)	34 of 100 (Routine)
Orbost (Comparison)	Australia	Record daily precipitation	29.5 mm (1.2 in)	34 of 100 (Routine)
Cubbaroo	Australia	Record daily precipitation	57.2 mm (2.3 in)	33 of 100 (Routine)
Belltrees 1	Australia	Record daily precipitation	45.0 mm (1.8 in)	33 of 100 (Routine)
Tallangatta Dcnr	Australia	Record daily precipitation	46.7 mm (1.8 in)	33 of 100 (Routine)
Dargo	Australia	Record daily precipitation	40.4 mm (1.6 in)	33 of 100 (Routine)
Bairnsdale Post Office	Australia	Record daily precipitation	49.3 mm (1.9 in)	33 of 100 (Routine)
Merrywinbone (Oreel)	Australia	Record daily precipitation	51.6 mm (2.0 in)	32 of 100 (Routine)
Edgeroi	Australia	Record daily precipitation	47.0 mm (1.9 in)	32 of 100 (Routine)
Blackville Post Office	Australia	Record daily precipitation	46.2 mm (1.8 in)	32 of 100 (Routine)
Werris Creek Post Office	Australia	Record daily precipitation	49.5 mm (1.9 in)	32 of 100 (Routine)
Nullawarre	Australia	Record daily precipitation	33.5 mm (1.3 in)	32 of 100 (Routine)
Princetown	Australia	Record daily precipitation	25.4 mm (1.0 in)	32 of 100 (Routine)
New London	United States	Record daily precipitation	28.4 mm (1.1 in)	32 of 100 (Routine)
Sandy Creek Tank	Australia	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)
Boggabri Post Office	Australia	Record daily precipitation	61.0 mm (2.4 in)	31 of 100 (Routine)
Premer Post Office	Australia	Record daily precipitation	79.2 mm (3.1 in)	31 of 100 (Routine)
Tarcutta Post Office	Australia	Record daily precipitation	52.1 mm (2.1 in)	31 of 100 (Routine)
Maroondah Weir (Melbourne Wate	Australia	Record daily precipitation	39.9 mm (1.6 in)	31 of 100 (Routine)

Counts by Type and Timescale

638 records

Records set or tied on 21 March 1931 by type: Highest daily maximum 28, Lowest daily maximum 22, Highest daily minimum 58, Lowest daily minimum 1, Heaviest daily rainfall 524, Heaviest daily snowfall 2, Deepest snow cover 3.

Records on 21 March 1931 by type
Record type	Records
Highest daily maximum	28
Lowest daily maximum	22
Highest daily minimum	58
Lowest daily minimum	1
Heaviest daily rainfall	524
Heaviest daily snowfall	2
Deepest snow cover	3

Records on 21 March 1931 by timescale: all-time 1, monthly 9, daily 628.

How Much Records Were Beaten By

602 broken records

Margins by which the 602 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 180.0. Ties are not counted.

Top 20 by Significance

21 March 1931

Top 20 records on 21 March 1931 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 March 1931	Normanstone Well, AU	monthly rain	81.3 mm (3.2 in)	35.3 mm (1.4 in)	32 years	62 of 100 (Major)
21 March 1931	Murrurundi Post Office, AU	daily rain	76.5 mm (3.0 in)	59.5 mm (2.3 in)	43 years	59 of 100 (Notable)
21 March 1931	Gamalally, AU	daily rain	56.1 mm (2.2 in)	42.4 mm (1.7 in)	43 years	55 of 100 (Notable)
21 March 1931	Coolanbilla, AU	daily rain	66.0 mm (2.6 in)	57.6 mm (2.3 in)	32 years	52 of 100 (Notable)
21 March 1931	Maneroo, AU	daily rain	78.7 mm (3.1 in)	68.0 mm (2.7 in)	40 years	50 of 100 (Notable)
21 March 1931	Yan Yean, AU	daily rain	48.8 mm (1.9 in)	24.7 mm (1.0 in)	50 years	48 of 100 (Notable)
21 March 1931	Quipolly Creek Post Office, AU	daily rain	70.6 mm (2.8 in)	57.1 mm (2.2 in)	29 years	47 of 100 (Notable)
21 March 1931	Cape Otway Lighthouse, AU	daily rain	36.3 mm (1.4 in)	19.3 mm (0.8 in)	50 years	47 of 100 (Notable)
21 March 1931	Hawkesdale (Post Office), AU	daily rain	39.6 mm (1.6 in)	28.2 mm (1.1 in)	10 years	46 of 100 (Notable)
21 March 1931	Mullaley (Garrawilla), AU	daily rain	62.0 mm (2.4 in)	50.1 mm (2.0 in)	28 years	45 of 100 (Notable)
21 March 1931	Scotsburn (Mount Boninyong), AU	daily rain	47.8 mm (1.9 in)	25.7 mm (1.0 in)	50 years	45 of 100 (Notable)
21 March 1931	Woolsthorpe, AU	daily rain	34.3 mm (1.4 in)	24.1 mm (0.9 in)	10 years	45 of 100 (Notable)
21 March 1931	Collarenebri (Albert St), AU	daily rain	64.5 mm (2.5 in)	48.8 mm (1.9 in)	17 years	44 of 100 (Notable)
21 March 1931	Uccle, BE	daily high min	10.7 C (51.3 F)	2.3 C (4.1 F)	94 years	43 of 100 (Notable)
21 March 1931	Isisford Post Office, AU	daily rain	81.8 mm (3.2 in)	66.8 mm (2.6 in)	22 years	42 of 100 (Notable)
21 March 1931	Warrumbungle Post Office, AU	daily rain	68.3 mm (2.7 in)	46.5 mm (1.8 in)	30 years	42 of 100 (Notable)
21 March 1931	Willow Tree (Valais), AU	daily rain	85.1 mm (3.4 in)	37.6 mm (1.5 in)	43 years	41 of 100 (Notable)
21 March 1931	Bruthen (Post Office), AU	daily rain	37.8 mm (1.5 in)	31.4 mm (1.2 in)	43 years	40 of 100 (Notable)
21 March 1931	Apollo Bay, AU	daily rain	53.3 mm (2.1 in)	34.5 mm (1.4 in)	2 years	40 of 100 (Notable)
21 March 1931	Cassilis Post Office, AU	daily rain	50.8 mm (2.0 in)	34.3 mm (1.4 in)	29 years	38 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 1931

Records set or tied on this calendar date in each year from 1797 to 1931. 1931 had 638 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 1931-03-21: 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 2026-10-14 (14 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 25	535
25 to 50	56
50 to 75	9
75 to 100	0
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	2