Weather Records on 31 May 1919

44 weather records were set or tied worldwide on 31 May 1919. Highest significance: Madison Wb City, US.

Key Facts for 31 May 1919

On 31 May 1919, 44 weather records were set or tied at long-record stations worldwide.
26 were record highs and 8 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 35 daily.
Madison Wb City set a daily record precipitation of 43.4 mm (1.7 in) on 31 May 1919.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 440 records.

Record Map

44 stations

44 station records on 31 May 1919 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 1919: highest significance records shown on the map
Station	Country	Type	Value	Significance
Madison Wb City	United States	Record daily precipitation	43.4 mm (1.7 in)	34 of 100 (Routine)
Green Bay	United States	Record daily precipitation	32.5 mm (1.3 in)	31 of 100 (Routine)
Gravenhurst	Canada	Record high maximum temperature	32.2 C (90.0 F)	26 of 100 (Routine)
St John's	Canada	Record daily precipitation	37.6 mm (1.5 in)	22 of 100 (Routine)
Stony Mountain	Canada	Record daily precipitation	28.7 mm (1.1 in)	21 of 100 (Routine)
Casterton (Nangeela)	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Henichesk	Ukraine	Record daily precipitation	14.6 mm (0.6 in)	20 of 100 (Routine)
Haliburton A	Canada	Record high maximum temperature	34.4 C (93.9 F)	20 of 100 (Routine)
Halifax	Canada	Record low maximum temperature	9.4 C (48.9 F)	20 of 100 (Routine)
Winnemucca AP	United States	Record low minimum temperature	-2.2 C (28.0 F)	19 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record high maximum temperature	21.6 C (70.9 F)	18 of 100 (Routine)
Edmonton	Canada	Record low maximum temperature	4.4 C (39.9 F)	18 of 100 (Routine)
Port Stanley	Canada	Record high maximum temperature	29.4 C (84.9 F)	17 of 100 (Routine)
Fort Chipewyan	Canada	Record daily snowfall	2.5 cm (1.0 in)	16 of 100 (Routine)
Buffalo	United States	Record high minimum temperature	19.4 C (66.9 F)	16 of 100 (Routine)
Morden	Canada	Record daily precipitation	20.3 mm (0.8 in)	14 of 100 (Routine)
White River	Canada	Record high maximum temperature	33.3 C (91.9 F)	14 of 100 (Routine)
Guelph Oac	Canada	Record high maximum temperature	31.7 C (89.1 F)	14 of 100 (Routine)
Lindsay	Canada	Record high maximum temperature	33.3 C (91.9 F)	14 of 100 (Routine)
Gospic	Croatia	Record daily precipitation	32.7 mm (1.3 in)	14 of 100 (Routine)
Fort Chipewyan	Canada	Record low maximum temperature	1.1 C (34.0 F)	13 of 100 (Routine)
Moose Factory	Canada	Record high maximum temperature	32.8 C (91.0 F)	13 of 100 (Routine)
Buffalo	United States	Record high maximum temperature	32.2 C (90.0 F)	13 of 100 (Routine)
Green Bay	United States	Record high maximum temperature	31.7 C (89.1 F)	11 of 100 (Routine)
Sydney	Canada	Record low maximum temperature	6.1 C (43.0 F)	10 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record daily precipitation	52.1 mm (2.1 in)	10 of 100 (Routine)
Stratford	Canada	Record high maximum temperature	32.2 C (90.0 F)	6 of 100 (Routine)
Beatrice	Canada	Record high maximum temperature	31.1 C (88.0 F)	5 of 100 (Routine)
London South	Canada	Record high maximum temperature	34.4 C (93.9 F)	5 of 100 (Routine)
Lakefield	Canada	Record high maximum temperature	31.7 C (89.1 F)	5 of 100 (Routine)
Galway	Ireland	Record high maximum temperature	26.7 C (80.1 F)	5 of 100 (Routine)
Escanaba	United States	Record high minimum temperature	15.0 C (59.0 F)	5 of 100 (Routine)
Parry Sound	Canada	Record high maximum temperature	30.0 C (86.0 F)	4 of 100 (Routine)
Madison Wb City	United States	Record high maximum temperature	30.0 C (86.0 F)	4 of 100 (Routine)
Nemours (Ghazaouet)	Algeria	Record high minimum temperature	17.0 C (62.6 F)	3 of 100 (Routine)
Kingston Queens U	Canada	Record high maximum temperature	26.1 C (79.0 F)	3 of 100 (Routine)
Alton	Canada	Record high maximum temperature	32.8 C (91.0 F)	3 of 100 (Routine)
Morgantown 1	United States	Record high maximum temperature	35.0 C (95.0 F)	3 of 100 (Routine)
Barkerville	Canada	Record low minimum temperature	-2.2 C (28.0 F)	2 of 100 (Routine)
Lucknow	Canada	Record high maximum temperature	31.7 C (89.1 F)	2 of 100 (Routine)
Yarmouth	Canada	Record low minimum temperature	3.3 C (37.9 F)	2 of 100 (Routine)
Storrs	United States	Record high minimum temperature	16.7 C (62.1 F)	2 of 100 (Routine)
Hambantota	Sri Lanka	Record high minimum temperature	26.3 C (79.3 F)	1 of 100 (Routine)
Belle Isle	Canada	Record low minimum temperature	-3.9 C (25.0 F)	0 of 100 (Routine)

Counts by Type and Timescale

44 records

Records set or tied on 31 May 1919 by type: Highest daily maximum 21, Lowest daily maximum 4, Highest daily minimum 5, Lowest daily minimum 4, Heaviest daily rainfall 9, Heaviest daily snowfall 1.

Records on 31 May 1919 by type
Record type	Records
Highest daily maximum	21
Lowest daily maximum	4
Highest daily minimum	5
Lowest daily minimum	4
Heaviest daily rainfall	9
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 31 May 1919 by timescale: all-time 0, monthly 9, daily 35.

How Much Records Were Beaten By

26 broken records

Margins by which the 26 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 25.0. Ties are not counted.

Top 20 by Significance

31 May 1919

Top 20 records on 31 May 1919 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 1919	Madison Wb City, US	daily rain	43.4 mm (1.7 in)	18.3 mm (0.7 in)	39 years	34 of 100 (Routine)
31 May 1919	Green Bay, US	daily rain	32.5 mm (1.3 in)	18.0 mm (0.7 in)	29 years	31 of 100 (Routine)
31 May 1919	Gravenhurst, CA	monthly high max	32.2 C (90.0 F)	0.5 C (0.9 F)	40 years	26 of 100 (Routine)
31 May 1919	St John's, CA	daily rain	37.6 mm (1.5 in)	13.7 mm (0.5 in)	12 years	22 of 100 (Routine)
31 May 1919	Stony Mountain, CA	daily rain	28.7 mm (1.1 in)	10.9 mm (0.4 in)	23 years	21 of 100 (Routine)
31 May 1919	Casterton (Nangeela), AU	daily rain	15.2 mm (0.6 in)	8.1 mm (0.32 in)	25 years	20 of 100 (Routine)
31 May 1919	Henichesk, UA	daily rain	14.6 mm (0.6 in)	7.3 mm (0.29 in)	24 years	20 of 100 (Routine)
31 May 1919	Haliburton A, CA	daily high max	34.4 C (93.9 F)	5.5 C (9.9 F)	27 years	20 of 100 (Routine)
31 May 1919	Halifax, CA	daily low max	9.4 C (48.9 F)	1.2 C (2.2 F)	46 years	20 of 100 (Routine)
31 May 1919	Winnemucca AP, US	daily low min	-2.2 C (28.0 F)	1.6 C (2.9 F)	38 years	19 of 100 (Routine)
31 May 1919	Sydney (Observatory Hill), AU	daily high max	21.6 C (70.9 F)	0.5 C (0.9 F)	33 years	18 of 100 (Routine)
31 May 1919	Edmonton, CA	daily low max	4.4 C (39.9 F)	2.8 C (5.0 F)	35 years	18 of 100 (Routine)
31 May 1919	Port Stanley, CA	daily high max	29.4 C (84.9 F)	1.1 C (2.0 F)	39 years	17 of 100 (Routine)
31 May 1919	Fort Chipewyan, CA	daily snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	34 years	16 of 100 (Routine)
31 May 1919	Buffalo, US	daily high min	19.4 C (66.9 F)	1.6 C (2.9 F)	31 years	16 of 100 (Routine)
31 May 1919	Morden, CA	daily rain	20.3 mm (0.8 in)	3.3 mm (0.13 in)	27 years	14 of 100 (Routine)
31 May 1919	White River, CA	daily high max	33.3 C (91.9 F)	6.1 C (11.0 F)	9 years	14 of 100 (Routine)
31 May 1919	Guelph Oac, CA	daily high max	31.7 C (89.1 F)	2.3 C (4.1 F)	27 years	14 of 100 (Routine)
31 May 1919	Lindsay, CA	daily high max	33.3 C (91.9 F)	2.2 C (4.0 F)	23 years	14 of 100 (Routine)
31 May 1919	Gospic, HR	daily rain	32.7 mm (1.3 in)	5.0 mm (0.20 in)	25 years	14 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

1811 to 1919

Records set or tied on this calendar date in each year from 1811 to 1919. 1919 had 44 records.

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

Records on 05-31 in each year
Year	Records
1811	1
1818	3
1827	1
1836	2
1845	1
1847	1
1853	2
1855	2
1858	1
1864	2
1865	1
1866	1
1867	1
1868	4
1869	1
1871	2
1873	3
1874	1
1877	1
1878	2
1879	2
1880	3
1882	1
1883	1
1885	1
1888	1
1889	2
1890	1
1892	1
1893	4
1894	2
1895	8
1897	5
1898	7
1899	1
1900	2
1901	9
1902	9
1903	17
1904	19
1905	7
1906	11
1907	20
1908	12
1909	8
1910	26
1911	20
1912	15
1913	83
1914	20
1915	23
1916	23
1917	13
1918	20
1919	44
1920	46
1921	157
1922	49
1923	98
1924	152
1925	226
1926	228
1927	121
1928	67
1929	246
1930	612
1931	223
1932	181
1933	397
1934	782
1935	156
1936	559
1937	462
1938	424
1939	461
1940	383
1941	410
1942	364
1943	552
1944	372
1945	457
1946	380
1947	439
1948	295
1949	303
1950	467
1951	640
1952	374
1953	654
1954	445
1955	534
1956	632
1957	304
1958	429
1959	459
1960	247
1961	472
1962	565
1963	354
1964	1,237
1965	494
1966	601
1967	987
1968	276
1969	555
1970	573
1971	714
1972	1,127
1973	418
1974	473
1975	797
1976	435
1977	605
1978	873
1979	915
1980	517
1981	775
1982	817
1983	1,494
1984	2,047
1985	790
1986	1,365
1987	822
1988	1,255
1989	912
1990	900
1991	1,381
1992	1,031
1993	982
1994	776
1995	693
1996	946
1997	1,163
1998	1,215
1999	790
2000	1,172
2001	1,047
2002	1,162
2003	831
2004	1,071
2005	724
2006	1,045
2007	793
2008	809
2009	570
2010	741
2011	1,498
2012	764
2013	1,100
2014	565
2015	704
2016	402
2017	440
2018	1,211
2019	420
2020	673
2021	834
2022	902
2023	454
2024	809
2025	1,204
2026	536

Download the Data

Data for records on 1919-05-31: 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 2026-10-17 (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).

Margin	Records
0 to 5	15
5 to 10	6
10 to 15	2
15 to 20	2
20 to 25	1