Weather Records on 31 May 1963

354 weather records were set or tied worldwide on 31 May 1963. Highest significance: Fremantle, AU.

Key Facts for 31 May 1963

On 31 May 1963, 354 weather records were set or tied at long-record stations worldwide.
83 were record highs and 35 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 6 monthly and 347 daily.
Fremantle set a daily record precipitation of 46.2 mm (1.8 in) on 31 May 1963.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 438 records.

Record Map

354 stations

354 station records on 31 May 1963 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 1963: highest significance records shown on the map
Station	Country	Type	Value	Significance
Fremantle	Australia	Record daily precipitation	46.2 mm (1.8 in)	49 of 100 (Notable)
Rockingham Post Office	Australia	Record daily precipitation	58.4 mm (2.3 in)	40 of 100 (Notable)
Dryden	Canada	Record daily precipitation	33.8 mm (1.3 in)	40 of 100 (Notable)
Marquette	United States	Record high maximum temperature	30.0 C (86.0 F)	40 of 100 (Notable)
Spearman	United States	Record daily precipitation	119.4 mm (4.7 in)	39 of 100 (Notable)
Intl Falls Intl AP	United States	Record daily precipitation	31.2 mm (1.2 in)	37 of 100 (Notable)
Gobindpur	India	Record daily precipitation	44.4 mm (1.7 in)	36 of 100 (Notable)
Sivaganga	India	Record daily precipitation	87.8 mm (3.5 in)	36 of 100 (Notable)
Nannilam	India	Record daily precipitation	42.0 mm (1.7 in)	36 of 100 (Notable)
Nara Visa	United States	Record daily precipitation	47.0 mm (1.9 in)	36 of 100 (Notable)
Gretna (Aut)	Canada	Record daily precipitation	27.7 mm (1.1 in)	35 of 100 (Notable)
Norsk	Russia	Record daily precipitation	37.1 mm (1.5 in)	33 of 100 (Routine)
Goodwell Rsch STN	United States	Record daily precipitation	33.3 mm (1.3 in)	33 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record low minimum temperature	-1.4 C (29.5 F)	32 of 100 (Routine)
Stratford	United States	Record daily precipitation	29.7 mm (1.2 in)	32 of 100 (Routine)
Sankari	India	Record daily precipitation	57.0 mm (2.2 in)	31 of 100 (Routine)
Pembina	United States	Record daily precipitation	31.2 mm (1.2 in)	31 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record low minimum temperature	-0.7 C (30.7 F)	30 of 100 (Routine)
Kurgan	Russia	Record low minimum temperature	-1.6 C (29.1 F)	30 of 100 (Routine)
Pollock	United States	Record daily precipitation	49.8 mm (2.0 in)	30 of 100 (Routine)
Clyde Park	Australia	Record daily precipitation	25.9 mm (1.0 in)	29 of 100 (Routine)
Mindalla	Australia	Record daily precipitation	27.2 mm (1.1 in)	28 of 100 (Routine)
Bolgart	Australia	Record daily precipitation	43.2 mm (1.7 in)	28 of 100 (Routine)
Sao Benedito	Brazil	Record daily precipitation	55.0 mm (2.2 in)	27 of 100 (Routine)
Angul	India	Record daily precipitation	31.0 mm (1.2 in)	27 of 100 (Routine)
Ariyalur	India	Record daily precipitation	54.0 mm (2.1 in)	27 of 100 (Routine)
Dandaragan	Australia	Record daily precipitation	38.4 mm (1.5 in)	26 of 100 (Routine)
Goomalling	Australia	Record daily precipitation	37.8 mm (1.5 in)	26 of 100 (Routine)
Bajramaly	Turkmenistan	Record high minimum temperature	22.7 C (72.9 F)	26 of 100 (Routine)
Ft Benton	United States	Record high maximum temperature	31.1 C (88.0 F)	26 of 100 (Routine)
Kendall	United States	Record high minimum temperature	6.1 C (43.0 F)	26 of 100 (Routine)
Aldinga Post Office	Australia	Record daily precipitation	29.0 mm (1.1 in)	25 of 100 (Routine)
Boulia Airport	Australia	Record high minimum temperature	21.2 C (70.2 F)	25 of 100 (Routine)
Quincy	United States	Record high minimum temperature	11.1 C (52.0 F)	25 of 100 (Routine)
Richardton Abbey	United States	Record daily precipitation	97.3 mm (3.8 in)	25 of 100 (Routine)
Greenough	Australia	Record daily precipitation	34.0 mm (1.3 in)	24 of 100 (Routine)
Willunga	Australia	Record daily precipitation	37.6 mm (1.5 in)	24 of 100 (Routine)
Pavagada	India	Record daily precipitation	50.8 mm (2.0 in)	24 of 100 (Routine)
Annavasal	India	Record daily precipitation	27.7 mm (1.1 in)	24 of 100 (Routine)
Fordyce	United States	Record low minimum temperature	12.2 C (54.0 F)	24 of 100 (Routine)
Mtn Home	United States	Record high minimum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Potter	United States	Record daily precipitation	29.7 mm (1.2 in)	24 of 100 (Routine)
Nukarni	Australia	Record daily precipitation	30.0 mm (1.2 in)	23 of 100 (Routine)
Mannargudi	India	Record daily precipitation	42.2 mm (1.7 in)	23 of 100 (Routine)
Uralsk	Kazakhstan	Record low maximum temperature	13.5 C (56.3 F)	23 of 100 (Routine)
San German 4 W	Puerto Rico [United States]	Record low minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Bueyeros 4 NW	United States	Record daily precipitation	46.7 mm (1.8 in)	23 of 100 (Routine)
Wahpeton 3 N	United States	Record daily precipitation	52.1 mm (2.1 in)	23 of 100 (Routine)
Port Townsend	United States	Record high minimum temperature	13.9 C (57.0 F)	23 of 100 (Routine)
Tumut 2	Australia	Record daily precipitation	31.5 mm (1.2 in)	22 of 100 (Routine)
Kalimpong Obsy Sr	India	Record daily precipitation	63.5 mm (2.5 in)	22 of 100 (Routine)
Bucklin 1SE	United States	Record daily precipitation	82.8 mm (3.3 in)	22 of 100 (Routine)
Oshkosh	United States	Record daily precipitation	29.2 mm (1.1 in)	22 of 100 (Routine)
Sidney 6NNW	United States	Record daily precipitation	27.4 mm (1.1 in)	22 of 100 (Routine)
Bruce Rock	Australia	Record daily precipitation	26.2 mm (1.0 in)	21 of 100 (Routine)
Thiruthuraipoond	India	Record daily precipitation	24.0 mm (0.9 in)	20 of 100 (Routine)
Mount Gould	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Hyde Park	Australia	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Quorn (Round Hill)	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Winnemucca AP	United States	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)

Counts by Type and Timescale

354 records

Records set or tied on 31 May 1963 by type: Highest daily maximum 33, Lowest daily maximum 17, Highest daily minimum 50, Lowest daily minimum 18, Heaviest daily rainfall 236.

Records on 31 May 1963 by type
Record type	Records
Highest daily maximum	33
Lowest daily maximum	17
Highest daily minimum	50
Lowest daily minimum	18
Heaviest daily rainfall	236
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 May 1963 by timescale: all-time 1, monthly 6, daily 347.

How Much Records Were Beaten By

298 broken records

Margins by which the 298 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 36.7. Ties are not counted.

Top 20 by Significance

31 May 1963

Top 20 records on 31 May 1963 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 1963	Fremantle, AU	daily rain	46.2 mm (1.8 in)	24.6 mm (1.0 in)	48 years	49 of 100 (Notable)
31 May 1963	Rockingham Post Office, AU	daily rain	58.4 mm (2.3 in)	28.9 mm (1.1 in)	28 years	40 of 100 (Notable)
31 May 1963	Dryden, CA	daily rain	33.8 mm (1.3 in)	18.8 mm (0.7 in)	25 years	40 of 100 (Notable)
31 May 1963	Marquette, US	daily high max	30.0 C (86.0 F)	0.6 C (1.1 F)	101 years	40 of 100 (Notable)
31 May 1963	Spearman, US	all-time rain	119.4 mm (4.7 in)	12.2 mm (0.5 in)	20 years	39 of 100 (Notable)
31 May 1963	Intl Falls Intl AP, US	daily rain	31.2 mm (1.2 in)	14.2 mm (0.6 in)	46 years	37 of 100 (Notable)
31 May 1963	Gobindpur, IN	daily rain	44.4 mm (1.7 in)	25.1 mm (1.0 in)	41 years	36 of 100 (Notable)
31 May 1963	Sivaganga, IN	daily rain	87.8 mm (3.5 in)	36.7 mm (1.4 in)	25 years	36 of 100 (Notable)
31 May 1963	Nannilam, IN	daily rain	42.0 mm (1.7 in)	33.1 mm (1.3 in)	57 years	36 of 100 (Notable)
31 May 1963	Nara Visa, US	daily rain	47.0 mm (1.9 in)	29.0 mm (1.1 in)	14 years	36 of 100 (Notable)
31 May 1963	Gretna (Aut), CA	daily rain	27.7 mm (1.1 in)	7.4 mm (0.29 in)	67 years	35 of 100 (Notable)
31 May 1963	Norsk, RU	monthly rain	37.1 mm (1.5 in)	6.7 mm (0.26 in)	27 years	33 of 100 (Routine)
31 May 1963	Goodwell Rsch STN, US	daily rain	33.3 mm (1.3 in)	23.4 mm (0.9 in)	24 years	33 of 100 (Routine)
31 May 1963	Aleksandrovsk-Sahalinskij, RU	daily low min	-1.4 C (29.5 F)	0.7 C (1.3 F)	73 years	32 of 100 (Routine)
31 May 1963	Stratford, US	daily rain	29.7 mm (1.2 in)	23.6 mm (0.9 in)	24 years	32 of 100 (Routine)
31 May 1963	Sankari, IN	daily rain	57.0 mm (2.2 in)	31.3 mm (1.2 in)	16 years	31 of 100 (Routine)
31 May 1963	Pembina, US	daily rain	31.2 mm (1.2 in)	18.8 mm (0.7 in)	20 years	31 of 100 (Routine)
31 May 1963	Hobart (Ellerslie Road), AU	daily low min	-0.7 C (30.7 F)	1.3 C (2.3 F)	60 years	30 of 100 (Routine)
31 May 1963	Kurgan, RU	daily low min	-1.6 C (29.1 F)	1.5 C (2.7 F)	67 years	30 of 100 (Routine)
31 May 1963	Pollock, US	daily rain	49.8 mm (2.0 in)	13.7 mm (0.5 in)	30 years	30 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 1963

Records set or tied on this calendar date in each year from 1811 to 1963. 1963 had 354 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 1963-05-31: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 5	173
5 to 10	75
10 to 15	28
15 to 20	8
20 to 25	6
25 to 30	5
30 to 35	2
35 to 40	1