Weather Records on 31 May 2020

673 weather records were set or tied worldwide on 31 May 2020. Highest significance: Madrid - Retiro, ES.

Key Facts for 31 May 2020

On 31 May 2020, 673 weather records were set or tied at long-record stations worldwide.
514 were record highs and 60 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 61 monthly and 612 daily.
Madrid - Retiro set a daily record precipitation of 37.8 mm (1.5 in) on 31 May 2020.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 436 records.

Record Map

673 stations

673 station records on 31 May 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Madrid - Retiro	Spain	Record daily precipitation	37.8 mm (1.5 in)	69 of 100 (Major)
Williams 1 NW	United States	Record daily precipitation	40.9 mm (1.6 in)	65 of 100 (Major)
Ajmer	India	Record daily precipitation	53.1 mm (2.1 in)	60 of 100 (Major)
Thermopolis	United States	Record high minimum temperature	20.6 C (69.1 F)	58 of 100 (Notable)
Chico UNIV Farm	United States	Record daily precipitation	43.4 mm (1.7 in)	53 of 100 (Notable)
Dillon U of Montana Western	United States	Record high minimum temperature	15.6 C (60.1 F)	52 of 100 (Notable)
Concrete Ppl Fish STN	United States	Record daily precipitation	39.9 mm (1.6 in)	50 of 100 (Notable)
Driggs	United States	Record high minimum temperature	16.1 C (61.0 F)	44 of 100 (Notable)
Salmon AP	United States	Record high minimum temperature	13.3 C (55.9 F)	44 of 100 (Notable)
Ross Dam	United States	Record daily precipitation	29.5 mm (1.2 in)	44 of 100 (Notable)
Dulce	United States	Record high minimum temperature	11.1 C (52.0 F)	43 of 100 (Notable)
Ruch	United States	Record daily precipitation	35.3 mm (1.4 in)	43 of 100 (Notable)
Deland 1 SSE	United States	Record daily precipitation	51.6 mm (2.0 in)	42 of 100 (Notable)
Ft Benton	United States	Record high minimum temperature	15.0 C (59.0 F)	42 of 100 (Notable)
Diablo Dam	United States	Record daily precipitation	37.1 mm (1.5 in)	42 of 100 (Notable)
Newhalem	United States	Record daily precipitation	34.8 mm (1.4 in)	42 of 100 (Notable)
Ludhiana	India	Record daily precipitation	41.9 mm (1.6 in)	41 of 100 (Notable)
Paradise	United States	Record high maximum temperature	33.9 C (93.0 F)	41 of 100 (Notable)
Hardy	United States	Record low minimum temperature	12.8 C (55.0 F)	41 of 100 (Notable)
Laketown	United States	Record high minimum temperature	10.6 C (51.1 F)	41 of 100 (Notable)
Logan Utah St UNIV	United States	Record high maximum temperature	33.9 C (93.0 F)	41 of 100 (Notable)
Logan Utah St UNIV	United States	Record high minimum temperature	17.2 C (63.0 F)	41 of 100 (Notable)
Moscow	Russia	Record daily precipitation	34.0 mm (1.3 in)	40 of 100 (Notable)
Leo 6 SW	United States	Record high minimum temperature	14.4 C (57.9 F)	40 of 100 (Notable)
Miami Beach	United States	Record low maximum temperature	23.3 C (73.9 F)	40 of 100 (Notable)
Malojaroslavec	Russia	Record daily precipitation	67.1 mm (2.6 in)	39 of 100 (Notable)
Aldan	Russia	Record low minimum temperature	-9.8 C (14.4 F)	39 of 100 (Notable)
Armagh	United Kingdom	Record high maximum temperature	25.8 C (78.4 F)	39 of 100 (Notable)
Milford 4 NW	United States	Record high maximum temperature	33.3 C (91.9 F)	39 of 100 (Notable)
Twin Bridges	United States	Record high minimum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Buffalo Bill Dam	United States	Record high maximum temperature	30.0 C (86.0 F)	39 of 100 (Notable)
Aztec Ruins Nm	United States	Record high minimum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Dull Ctr 1SE	United States	Record high maximum temperature	35.0 C (95.0 F)	38 of 100 (Notable)
Belle Fourche	United States	Record high maximum temperature	34.4 C (93.9 F)	37 of 100 (Notable)
Lucknow/Amausi	India	Record daily precipitation	58.9 mm (2.3 in)	36 of 100 (Notable)
Wise Rvr 3 WNW	United States	Record high minimum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
Cliff 11 SE	United States	Record high minimum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Coupeville 1 S	United States	Record low maximum temperature	12.2 C (54.0 F)	36 of 100 (Notable)
Gillette 3SE	United States	Record high maximum temperature	32.8 C (91.0 F)	36 of 100 (Notable)
Malad City	United States	Record high minimum temperature	16.7 C (62.1 F)	36 of 100 (Notable)
Sam	Kazakhstan	Record high minimum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Senou	Mali	Record low maximum temperature	28.4 C (83.1 F)	35 of 100 (Notable)
Columbus	United States	Record high minimum temperature	13.3 C (55.9 F)	35 of 100 (Notable)
Dunkirk 19NNE	United States	Record high minimum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Oakland	United States	Record daily precipitation	50.8 mm (2.0 in)	35 of 100 (Notable)
Cushman Powerhouse #2	United States	Record daily precipitation	41.7 mm (1.6 in)	35 of 100 (Notable)
Basin	United States	Record high minimum temperature	20.0 C (68.0 F)	35 of 100 (Notable)
Aralskoe More	Kazakhstan	Record high maximum temperature	39.9 C (103.8 F)	34 of 100 (Routine)
Bakko I Hol	Norway	Record snow depth	69.0 cm (27.2 in)	34 of 100 (Routine)
Everett	United States	Record daily precipitation	33.0 mm (1.3 in)	34 of 100 (Routine)
Tongliao	China	Record daily precipitation	33.5 mm (1.3 in)	33 of 100 (Routine)
Turgaj	Kazakhstan	Record high maximum temperature	36.0 C (96.8 F)	33 of 100 (Routine)
Kazalinsk	Kazakhstan	Record high maximum temperature	39.4 C (102.9 F)	33 of 100 (Routine)
Atbasar	Kazakhstan	Record high maximum temperature	36.3 C (97.3 F)	32 of 100 (Routine)
Duncan	United States	Record high minimum temperature	17.2 C (63.0 F)	32 of 100 (Routine)
Petrified Forest Np	United States	Record high minimum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Trenton	United States	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Clearmont 5 SW	United States	Record high minimum temperature	15.0 C (59.0 F)	32 of 100 (Routine)
Lamar Rs	United States	Record high maximum temperature	28.9 C (84.0 F)	32 of 100 (Routine)
Lovell	United States	Record high minimum temperature	21.1 C (70.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

673 records

Records set or tied on 31 May 2020 by type: Highest daily maximum 186, Lowest daily maximum 30, Highest daily minimum 328, Lowest daily minimum 30, Heaviest daily rainfall 96, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 31 May 2020 by type
Record type	Records
Highest daily maximum	186
Lowest daily maximum	30
Highest daily minimum	328
Lowest daily minimum	30
Heaviest daily rainfall	96
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 31 May 2020 by timescale: all-time 0, monthly 61, daily 612.

How Much Records Were Beaten By

523 broken records

Margins by which the 523 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 390.0. Ties are not counted.

Top 20 by Significance

31 May 2020

Top 20 records on 31 May 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 2020	Madrid - Retiro, ES	daily rain	37.8 mm (1.5 in)	25.6 mm (1.0 in)	65 years	69 of 100 (Major)
31 May 2020	Williams 1 NW, US	monthly rain	40.9 mm (1.6 in)	7.6 mm (0.30 in)	125 years	65 of 100 (Major)
31 May 2020	Ajmer, IN	monthly rain	53.1 mm (2.1 in)	9.9 mm (0.39 in)	95 years	60 of 100 (Major)
31 May 2020	Thermopolis, US	monthly high min	20.6 C (69.1 F)	3.4 C (6.1 F)	119 years	58 of 100 (Notable)
31 May 2020	Chico UNIV Farm, US	daily rain	43.4 mm (1.7 in)	27.4 mm (1.1 in)	27 years	53 of 100 (Notable)
31 May 2020	Dillon U of Montana Western, US	daily high min	15.6 C (60.1 F)	4.5 C (8.1 F)	106 years	52 of 100 (Notable)
31 May 2020	Concrete Ppl Fish STN, US	daily rain	39.9 mm (1.6 in)	11.7 mm (0.5 in)	80 years	50 of 100 (Notable)
31 May 2020	Driggs, US	monthly high min	16.1 C (61.0 F)	0.5 C (0.9 F)	77 years	44 of 100 (Notable)
31 May 2020	Salmon AP, US	daily high min	13.3 C (55.9 F)	1.6 C (2.9 F)	105 years	44 of 100 (Notable)
31 May 2020	Ross Dam, US	daily rain	29.5 mm (1.2 in)	20.4 mm (0.8 in)	20 years	44 of 100 (Notable)
31 May 2020	Dulce, US	daily high min	11.1 C (52.0 F)	1.1 C (2.0 F)	109 years	43 of 100 (Notable)
31 May 2020	Ruch, US	daily rain	35.3 mm (1.4 in)	15.7 mm (0.6 in)	27 years	43 of 100 (Notable)
31 May 2020	Deland 1 SSE, US	daily rain	51.6 mm (2.0 in)	4.4 mm (0.17 in)	108 years	42 of 100 (Notable)
31 May 2020	Ft Benton, US	daily high min	15.0 C (59.0 F)	1.1 C (2.0 F)	111 years	42 of 100 (Notable)
31 May 2020	Diablo Dam, US	daily rain	37.1 mm (1.5 in)	18.6 mm (0.7 in)	23 years	42 of 100 (Notable)
31 May 2020	Newhalem, US	daily rain	34.8 mm (1.4 in)	19.1 mm (0.8 in)	33 years	42 of 100 (Notable)
31 May 2020	Ludhiana, IN	monthly rain	41.9 mm (1.6 in)	3.3 mm (0.13 in)	55 years	41 of 100 (Notable)
31 May 2020	Paradise, US	daily high max	33.9 C (93.0 F)	0.6 C (1.1 F)	110 years	41 of 100 (Notable)
31 May 2020	Hardy, US	daily low min	12.8 C (55.0 F)	0.5 C (0.9 F)	115 years	41 of 100 (Notable)
31 May 2020	Laketown, US	daily high min	10.6 C (51.1 F)	0.6 C (1.1 F)	100 years	41 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

1811 to 2020

Records set or tied on this calendar date in each year from 1811 to 2020. 2020 had 673 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 2020-05-31: 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 50	521
50 to 100	1
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1