Weather Records on 1 May 1931

537 weather records were set or tied worldwide on 1 May 1931. Highest significance: Brocken, DE.

Key Facts for 1 May 1931

On 1 May 1931, 537 weather records were set or tied at long-record stations worldwide.
86 were record highs and 109 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 19 monthly and 518 daily.
Brocken set a monthly record snow depth of 80.0 cm (31.5 in) on 1 May 1931.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 442 records.

Record Map

537 stations

537 station records on 1 May 1931 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 May 1931: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brocken	Germany	Record snow depth	80.0 cm (31.5 in)	61 of 100 (Major)
Condah	Australia	Record daily precipitation	40.6 mm (1.6 in)	46 of 100 (Notable)
Port Arthur	Australia	Record daily precipitation	37.1 mm (1.5 in)	38 of 100 (Notable)
Merino	Australia	Record daily precipitation	27.7 mm (1.1 in)	31 of 100 (Routine)
Officer (Jesmond Dene)	Australia	Record daily precipitation	54.6 mm (2.1 in)	30 of 100 (Routine)
Mount Macedon	Australia	Record daily precipitation	33.3 mm (1.3 in)	30 of 100 (Routine)
Stuttgart	United States	Record daily precipitation	40.1 mm (1.6 in)	29 of 100 (Routine)
Wartook Post Office	Australia	Record daily precipitation	25.9 mm (1.0 in)	28 of 100 (Routine)
Mount Wellington (the Springs)	Australia	Record daily precipitation	31.8 mm (1.3 in)	27 of 100 (Routine)
Port Dover	Canada	Record low minimum temperature	-3.9 C (25.0 F)	25 of 100 (Routine)
Elmira	United States	Record low minimum temperature	-6.1 C (21.0 F)	24 of 100 (Routine)
Portland Rfc City	United States	Record high minimum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Port Jervis	United States	Record low minimum temperature	-3.9 C (25.0 F)	23 of 100 (Routine)
Corvallis State UNIV	United States	Record high minimum temperature	12.8 C (55.0 F)	23 of 100 (Routine)
Williamsport	United States	Record low minimum temperature	-2.2 C (28.0 F)	23 of 100 (Routine)
Orleansville (Chlef)	Algeria	Record high minimum temperature	19.0 C (66.2 F)	22 of 100 (Routine)
St Marys (Cullenswood)	Australia	Record daily precipitation	27.7 mm (1.1 in)	22 of 100 (Routine)
Haripad	India	Record daily precipitation	45.7 mm (1.8 in)	22 of 100 (Routine)
Karesuando	Sweden	Record high minimum temperature	2.5 C (36.5 F)	22 of 100 (Routine)
San Diego Wbo	United States	Record high minimum temperature	16.7 C (62.1 F)	22 of 100 (Routine)
Cape May 2 NW	United States	Record low minimum temperature	4.4 C (39.9 F)	22 of 100 (Routine)
Beaconsfield	Australia	Record daily precipitation	33.5 mm (1.3 in)	21 of 100 (Routine)
Edmonton	Canada	Record high maximum temperature	26.7 C (80.1 F)	21 of 100 (Routine)
Haparanda	Sweden	Record high maximum temperature	15.5 C (59.9 F)	21 of 100 (Routine)
Berkeley	United States	Record high minimum temperature	13.3 C (55.9 F)	21 of 100 (Routine)
Irwin	United States	Record low minimum temperature	-3.9 C (25.0 F)	21 of 100 (Routine)
Little River (Mount Rothwell)	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Groongal (Gundaline)	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Quambatook South	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Bendigo Prison	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Ararat Post Office	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Lake Victoria (Cal-Lal)	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Yamma	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Keilor (Arundel)	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Clifton Post Office	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Killarney Post Office	Australia	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Violet Town	Australia	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Mossgiel Post Office	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Round Hill	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Mooralla (Woodleigh)	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Cobram Post Office	Australia	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Birchip (Woodlands)	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Stawell	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Premer (Eden Moor)	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Wahgunyah	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Alexandra (Post Office)	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Kilmore Assumption College	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Tabulam Post Office	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Navarre	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Corowa Airport	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Jindera (Wadilock)	Australia	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Yielima Post Office	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Mansfield (Post Office)	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Urawilkie	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Willow Tree (Valais)	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Albury	Australia	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Eurongilly (Bundaleer)	Australia	Record daily precipitation	6.6 mm (0.26 in)	20 of 100 (Routine)
Henty Post Office	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Yarran	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)

Counts by Type and Timescale

537 records

Records set or tied on 1 May 1931 by type: Highest daily maximum 26, Lowest daily maximum 8, Highest daily minimum 60, Lowest daily minimum 101, Heaviest daily rainfall 339, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 1 May 1931 by type
Record type	Records
Highest daily maximum	26
Lowest daily maximum	8
Highest daily minimum	60
Lowest daily minimum	101
Heaviest daily rainfall	339
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 1 May 1931 by timescale: all-time 0, monthly 19, daily 518.

How Much Records Were Beaten By

459 broken records

Margins by which the 459 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 500.0. Ties are not counted.

Top 20 by Significance

1 May 1931

Top 20 records on 1 May 1931 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 1931	Brocken, DE	monthly snow depth	80.0 cm (31.5 in)	50.0 cm (19.7 in)	28 years	61 of 100 (Major)
1 May 1931	Condah, AU	daily rain	40.6 mm (1.6 in)	35.3 mm (1.4 in)	10 years	46 of 100 (Notable)
1 May 1931	Port Arthur, AU	daily rain	37.1 mm (1.5 in)	21.4 mm (0.8 in)	5 years	38 of 100 (Notable)
1 May 1931	Merino, AU	daily rain	27.7 mm (1.1 in)	12.7 mm (0.5 in)	31 years	31 of 100 (Routine)
1 May 1931	Officer (Jesmond Dene), AU	monthly rain	54.6 mm (2.1 in)	11.2 mm (0.4 in)	2 years	30 of 100 (Routine)
1 May 1931	Mount Macedon, AU	daily rain	33.3 mm (1.3 in)	13.7 mm (0.5 in)	38 years	30 of 100 (Routine)
1 May 1931	Stuttgart, US	daily rain	40.1 mm (1.6 in)	26.1 mm (1.0 in)	35 years	29 of 100 (Routine)
1 May 1931	Wartook Post Office, AU	daily rain	25.9 mm (1.0 in)	8.1 mm (0.32 in)	41 years	28 of 100 (Routine)
1 May 1931	Mount Wellington (the Springs), AU	daily rain	31.8 mm (1.3 in)	19.1 mm (0.8 in)	24 years	27 of 100 (Routine)
1 May 1931	Port Dover, CA	daily low min	-3.9 C (25.0 F)	2.2 C (4.0 F)	54 years	25 of 100 (Routine)
1 May 1931	Elmira, US	monthly low min	-6.1 C (21.0 F)	1.7 C (3.1 F)	27 years	24 of 100 (Routine)
1 May 1931	Portland Rfc City, US	daily high min	13.3 C (55.9 F)	1.1 C (2.0 F)	51 years	24 of 100 (Routine)
1 May 1931	Port Jervis, US	monthly low min	-3.9 C (25.0 F)	0.6 C (1.1 F)	27 years	23 of 100 (Routine)
1 May 1931	Corvallis State UNIV, US	daily high min	12.8 C (55.0 F)	3.4 C (6.1 F)	30 years	23 of 100 (Routine)
1 May 1931	Williamsport, US	monthly low min	-2.2 C (28.0 F)	1.1 C (2.0 F)	27 years	23 of 100 (Routine)
1 May 1931	Orleansville (Chlef), DZ	daily high min	19.0 C (66.2 F)	3.0 C (5.4 F)	31 years	22 of 100 (Routine)
1 May 1931	St Marys (Cullenswood), AU	daily rain	27.7 mm (1.1 in)	16.3 mm (0.6 in)	12 years	22 of 100 (Routine)
1 May 1931	Haripad, IN	daily rain	45.7 mm (1.8 in)	29.4 mm (1.2 in)	21 years	22 of 100 (Routine)
1 May 1931	Karesuando, SE	daily high min	2.5 C (36.5 F)	1.5 C (2.7 F)	48 years	22 of 100 (Routine)
1 May 1931	San Diego Wbo, US	daily high min	16.7 C (62.1 F)	0.6 C (1.1 F)	49 years	22 of 100 (Routine)

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

1795 to 1931

Records set or tied on this calendar date in each year from 1795 to 1931. 1931 had 537 records.

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

Records on 05-01 in each year
Year	Records
1795	1
1802	1
1804	1
1814	1
1818	1
1835	1
1836	1
1840	1
1846	2
1847	1
1850	1
1851	1
1857	1
1860	1
1861	1
1864	2
1865	1
1868	2
1872	1
1875	4
1878	2
1879	2
1880	3
1881	2
1884	1
1885	1
1886	2
1887	2
1888	2
1889	3
1890	2
1891	5
1892	6
1893	2
1894	5
1896	1
1897	4
1898	1
1899	8
1900	1
1901	5
1902	7
1903	9
1904	9
1905	13
1906	12
1907	31
1908	20
1909	49
1910	13
1911	22
1912	18
1913	54
1914	23
1915	27
1916	27
1917	37
1918	34
1919	150
1920	186
1921	41
1922	92
1923	64
1924	63
1925	118
1926	500
1927	125
1928	190
1929	142
1930	263
1931	537
1932	220
1933	706
1934	305
1935	276
1936	368
1937	218
1938	304
1939	227
1940	731
1941	333
1942	1,036
1943	526
1944	229
1945	350
1946	415
1947	655
1948	774
1949	405
1950	439
1951	894
1952	557
1953	917
1954	1,506
1955	772
1956	1,106
1957	359
1958	448
1959	764
1960	737
1961	588
1962	615
1963	704
1964	312
1965	360
1966	707
1967	948
1968	426
1969	429
1970	1,075
1971	444
1972	562
1973	841
1974	589
1975	286
1976	673
1977	545
1978	1,202
1979	612
1980	507
1981	1,265
1982	508
1983	1,423
1984	640
1985	789
1986	512
1987	1,098
1988	1,058
1989	949
1990	922
1991	633
1992	1,201
1993	1,101
1994	1,210
1995	1,365
1996	1,439
1997	804
1998	951
1999	932
2000	809
2001	1,106
2002	1,221
2003	964
2004	887
2005	1,320
2006	734
2007	857
2008	979
2009	679
2010	1,151
2011	716
2012	796
2013	976
2014	941
2015	550
2016	844
2017	1,163
2018	519
2019	788
2020	1,099
2021	834
2022	319
2023	912
2024	458
2025	430
2026	623

Download the Data

Data for records on 1931-05-01: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Histogram of margins by which records were beaten on 1 May 1931
Margin	Records
0 to 100	458
100 to 200	0
200 to 300	0
300 to 400	0
400 to 500	1