Weather Records on 31 May 1945

457 weather records were set or tied worldwide on 31 May 1945. Highest significance: Huron Rgnl AP, US.

Key Facts for 31 May 1945

On 31 May 1945, 457 weather records were set or tied at long-record stations worldwide.
89 were record highs and 218 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 25 monthly and 428 daily.
Huron Rgnl AP set a daily record precipitation of 74.7 mm (2.9 in) on 31 May 1945.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 437 records.

Record Map

457 stations

457 station records on 31 May 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Huron Rgnl AP	United States	Record daily precipitation	74.7 mm (2.9 in)	63 of 100 (Major)
Clark	United States	Record daily precipitation	78.7 mm (3.1 in)	59 of 100 (Notable)
Watertown Rgnl AP	United States	Record daily precipitation	82.8 mm (3.3 in)	52 of 100 (Notable)
Passau-Maierhof	Germany	Record daily precipitation	58.8 mm (2.3 in)	50 of 100 (Notable)
Burlington	United States	Record daily precipitation	50.8 mm (2.0 in)	50 of 100 (Notable)
Bamberg	Germany	Record daily precipitation	52.3 mm (2.1 in)	49 of 100 (Notable)
Arcoverde (Rio Branco)	Brazil	Record daily precipitation	58.0 mm (2.3 in)	47 of 100 (Notable)
Malin Head	Ireland	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Mellette 4 W	United States	Record daily precipitation	62.2 mm (2.4 in)	44 of 100 (Notable)
Karlstad	Sweden	Record snow depth	19.0 cm (7.5 in)	40 of 100 (Notable)
Onawa 3NW	United States	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Pointe Au Pere	Canada	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Narada Downs	Australia	Record daily precipitation	40.1 mm (1.6 in)	35 of 100 (Notable)
West Quarter	Australia	Record daily precipitation	44.7 mm (1.8 in)	35 of 100 (Notable)
Tulloona (Coolanga)	Australia	Record daily precipitation	36.8 mm (1.4 in)	35 of 100 (Notable)
Pembroke Eddy Match	Canada	Record low maximum temperature	8.3 C (46.9 F)	35 of 100 (Notable)
Russell	Canada	Record low minimum temperature	-8.9 C (16.0 F)	34 of 100 (Routine)
Mott	United States	Record daily precipitation	39.9 mm (1.6 in)	34 of 100 (Routine)
Belleville	Canada	Record low maximum temperature	13.3 C (55.9 F)	32 of 100 (Routine)
Archer Point Lighthouse	Australia	Record daily precipitation	33.8 mm (1.3 in)	31 of 100 (Routine)
Saint John	Canada	Record low maximum temperature	9.4 C (48.9 F)	31 of 100 (Routine)
Eustis 2 S	United States	Record high maximum temperature	38.9 C (102.0 F)	31 of 100 (Routine)
Muttaburra	Australia	Record daily precipitation	53.3 mm (2.1 in)	30 of 100 (Routine)
Begusarai	India	Record daily precipitation	31.2 mm (1.2 in)	30 of 100 (Routine)
Yercaud	India	Record daily precipitation	71.6 mm (2.8 in)	30 of 100 (Routine)
Glenwood Spgs #2	United States	Record daily precipitation	26.4 mm (1.0 in)	30 of 100 (Routine)
Belmond	United States	Record daily precipitation	49.0 mm (1.9 in)	30 of 100 (Routine)
Orlando Executive AP	United States	Record high maximum temperature	38.9 C (102.0 F)	30 of 100 (Routine)
Lakefield	Canada	Record low maximum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Krishnagiri	India	Record daily precipitation	53.8 mm (2.1 in)	29 of 100 (Routine)
Lake City 2 E	United States	Record high maximum temperature	38.3 C (100.9 F)	29 of 100 (Routine)
Beardsley	United States	Record daily precipitation	49.0 mm (1.9 in)	29 of 100 (Routine)
Nabawa	Australia	Record high minimum temperature	19.2 C (66.6 F)	28 of 100 (Routine)
Tangorin	Australia	Record daily precipitation	58.4 mm (2.3 in)	28 of 100 (Routine)
Pachpadra	India	Record daily precipitation	33.3 mm (1.3 in)	28 of 100 (Routine)
Logan 1 WNW	United States	Record daily precipitation	45.7 mm (1.8 in)	28 of 100 (Routine)
Augathella Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	27 of 100 (Routine)
Antenor Navarro	Brazil	Record daily precipitation	37.0 mm (1.5 in)	27 of 100 (Routine)
Bangarpet	India	Record daily precipitation	64.8 mm (2.6 in)	27 of 100 (Routine)
Brooksville Chin Hill	United States	Record high maximum temperature	38.3 C (100.9 F)	27 of 100 (Routine)
Redfield	United States	Record daily precipitation	31.8 mm (1.3 in)	27 of 100 (Routine)
Canton 4 SE	United States	Record low maximum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Ganca	Azerbaijan	Record low maximum temperature	15.4 C (59.7 F)	26 of 100 (Routine)
Ottawa Cda	Canada	Record low maximum temperature	9.4 C (48.9 F)	26 of 100 (Routine)
Huntsville	Canada	Record low maximum temperature	8.9 C (48.0 F)	26 of 100 (Routine)
Raiford State Prison	United States	Record high maximum temperature	37.8 C (100.0 F)	26 of 100 (Routine)
Windsor	United States	Record daily precipitation	42.7 mm (1.7 in)	26 of 100 (Routine)
Major Isidoro (Sertaozinho)	Brazil	Record daily precipitation	35.2 mm (1.4 in)	25 of 100 (Routine)
Savage	United States	Record daily precipitation	29.7 mm (1.2 in)	25 of 100 (Routine)
Tenali	India	Record daily precipitation	57.2 mm (2.3 in)	24 of 100 (Routine)
Monticello 5 SE	United States	Record high maximum temperature	39.4 C (102.9 F)	24 of 100 (Routine)
Plant City	United States	Record high maximum temperature	38.3 C (100.9 F)	24 of 100 (Routine)
Sac City	United States	Record daily precipitation	46.2 mm (1.8 in)	24 of 100 (Routine)
Orono	United States	Record low maximum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Medford	United States	Record low maximum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Minocqua	United States	Record low maximum temperature	5.6 C (42.1 F)	24 of 100 (Routine)
Cobar Post Office	Australia	Record high minimum temperature	12.8 C (55.0 F)	23 of 100 (Routine)
Fellsmere 7 SSW	United States	Record high maximum temperature	37.8 C (100.0 F)	23 of 100 (Routine)
Rockwell City	United States	Record daily precipitation	50.8 mm (2.0 in)	23 of 100 (Routine)
Sigourney	United States	Record daily precipitation	34.0 mm (1.3 in)	23 of 100 (Routine)

Counts by Type and Timescale

457 records

Records set or tied on 31 May 1945 by type: Highest daily maximum 46, Lowest daily maximum 158, Highest daily minimum 43, Lowest daily minimum 60, Heaviest daily rainfall 145, Heaviest daily snowfall 4, Deepest snow cover 1.

Records on 31 May 1945 by type
Record type	Records
Highest daily maximum	46
Lowest daily maximum	158
Highest daily minimum	43
Lowest daily minimum	60
Heaviest daily rainfall	145
Heaviest daily snowfall	4
Deepest snow cover	1

Records on 31 May 1945 by timescale: all-time 4, monthly 25, daily 428.

How Much Records Were Beaten By

343 broken records

Margins by which the 343 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 190.0. Ties are not counted.

Top 20 by Significance

31 May 1945

Top 20 records on 31 May 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 1945	Huron Rgnl AP, US	daily rain	74.7 mm (2.9 in)	57.7 mm (2.3 in)	59 years	63 of 100 (Major)
31 May 1945	Clark, US	monthly rain	78.7 mm (3.1 in)	26.6 mm (1.0 in)	49 years	59 of 100 (Notable)
31 May 1945	Watertown Rgnl AP, US	daily rain	82.8 mm (3.3 in)	51.8 mm (2.0 in)	24 years	52 of 100 (Notable)
31 May 1945	Passau-Maierhof, DE	monthly rain	58.8 mm (2.3 in)	20.0 mm (0.8 in)	9 years	50 of 100 (Notable)
31 May 1945	Burlington, US	daily rain	50.8 mm (2.0 in)	38.1 mm (1.5 in)	26 years	50 of 100 (Notable)
31 May 1945	Bamberg, DE	daily rain	52.3 mm (2.1 in)	24.0 mm (0.9 in)	10 years	49 of 100 (Notable)
31 May 1945	Arcoverde (Rio Branco), BR	daily rain	58.0 mm (2.3 in)	37.4 mm (1.5 in)	14 years	47 of 100 (Notable)
31 May 1945	Malin Head, IE	monthly rain	31.2 mm (1.2 in)	9.9 mm (0.39 in)	0 years	45 of 100 (Notable)
31 May 1945	Mellette 4 W, US	daily rain	62.2 mm (2.4 in)	37.3 mm (1.5 in)	26 years	44 of 100 (Notable)
31 May 1945	Karlstad, SE	daily snow depth	19.0 cm (7.5 in)	19.0 cm (7.5 in)	52 years	40 of 100 (Notable)
31 May 1945	Onawa 3NW, US	daily rain	50.8 mm (2.0 in)	42.9 mm (1.7 in)	2 years	40 of 100 (Notable)
31 May 1945	Pointe Au Pere, CA	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	70 years	39 of 100 (Notable)
31 May 1945	Narada Downs, AU	daily rain	40.1 mm (1.6 in)	28.2 mm (1.1 in)	15 years	35 of 100 (Notable)
31 May 1945	West Quarter, AU	daily rain	44.7 mm (1.8 in)	34.5 mm (1.4 in)	15 years	35 of 100 (Notable)
31 May 1945	Tulloona (Coolanga), AU	daily rain	36.8 mm (1.4 in)	18.3 mm (0.7 in)	51 years	35 of 100 (Notable)
31 May 1945	Pembroke Eddy Match, CA	daily low max	8.3 C (46.9 F)	2.8 C (5.0 F)	78 years	35 of 100 (Notable)
31 May 1945	Russell, CA	daily low min	-8.9 C (16.0 F)	5.6 C (10.1 F)	56 years	34 of 100 (Routine)
31 May 1945	Mott, US	daily rain	39.9 mm (1.6 in)	19.1 mm (0.8 in)	36 years	34 of 100 (Routine)
31 May 1945	Belleville, CA	daily low max	13.3 C (55.9 F)	0.6 C (1.1 F)	78 years	32 of 100 (Routine)
31 May 1945	Archer Point Lighthouse, AU	daily rain	33.8 mm (1.3 in)	20.8 mm (0.8 in)	24 years	31 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 1945

Records set or tied on this calendar date in each year from 1811 to 1945. 1945 had 457 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 1945-05-31: 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 25	324
25 to 50	15
50 to 75	3
75 to 100	0
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	1