Weather Records on 31 May 1904

19 weather records were set or tied worldwide on 31 May 1904. Highest significance: Dublin Phoenix Park, IE.

Key Facts for 31 May 1904

On 31 May 1904, 19 weather records were set or tied at long-record stations worldwide.
2 were record highs and 2 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 18 daily.
Dublin Phoenix Park set a daily record precipitation of 29.0 mm (1.1 in) on 31 May 1904.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 440 records.

Record Map

19 stations

19 station records on 31 May 1904 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 1904: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dublin Phoenix Park	Ireland	Record daily precipitation	29.0 mm (1.1 in)	51 of 100 (Notable)
Moorestown 4 E	United States	Record daily precipitation	43.2 mm (1.7 in)	36 of 100 (Notable)
Stornoway Airport	United Kingdom	Record high maximum temperature	23.3 C (73.9 F)	22 of 100 (Routine)
Kew	Australia	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Ringwood 2	Australia	Record daily precipitation	30.5 mm (1.2 in)	19 of 100 (Routine)
Hastings Post Office	Australia	Record daily precipitation	15.0 mm (0.6 in)	18 of 100 (Routine)
Melbourne Regional Office	Australia	Record daily precipitation	9.7 mm (0.38 in)	18 of 100 (Routine)
Trenton 2	United States	Record daily precipitation	52.1 mm (2.1 in)	18 of 100 (Routine)
Woodstock	Canada	Record daily precipitation	18.8 mm (0.7 in)	14 of 100 (Routine)
Middletown 4 W	United States	Record daily precipitation	31.8 mm (1.3 in)	13 of 100 (Routine)
Philadelphia City	United States	Record daily precipitation	17.8 mm (0.7 in)	13 of 100 (Routine)
Werribee (Wyndham)	Australia	Record daily precipitation	7.9 mm (0.31 in)	12 of 100 (Routine)
Halifax	Canada	Record high minimum temperature	10.0 C (50.0 F)	11 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	10.6 C (51.1 F)	10 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record daily precipitation	16.8 mm (0.7 in)	10 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record daily precipitation	33.3 mm (1.3 in)	8 of 100 (Routine)
Ferntree Gully	Australia	Record daily precipitation	29.5 mm (1.2 in)	7 of 100 (Routine)
Toronto	Canada	Record daily precipitation	27.4 mm (1.1 in)	6 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record low maximum temperature	13.3 C (55.9 F)	1 of 100 (Routine)

Counts by Type and Timescale

19 records

Records set or tied on 31 May 1904 by type: Highest daily maximum 1, Lowest daily maximum 2, Highest daily minimum 1, Heaviest daily rainfall 15.

Records on 31 May 1904 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	2
Highest daily minimum	1
Lowest daily minimum	0
Heaviest daily rainfall	15
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 May 1904 by timescale: all-time 0, monthly 1, daily 18.

How Much Records Were Beaten By

18 broken records

Margins by which the 18 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 31.5. Ties are not counted.

Top 20 by Significance

31 May 1904

Top 19 records on 31 May 1904 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 1904	Dublin Phoenix Park, IE	daily rain	29.0 mm (1.1 in)	23.2 mm (0.9 in)	26 years	51 of 100 (Notable)
31 May 1904	Moorestown 4 E, US	daily rain	43.2 mm (1.7 in)	31.5 mm (1.2 in)	29 years	36 of 100 (Notable)
31 May 1904	Stornoway Airport, GB	monthly high max	23.3 C (73.9 F)	1.1 C (2.0 F)	22 years	22 of 100 (Routine)
31 May 1904	Kew, AU	daily rain	22.6 mm (0.9 in)	13.5 mm (0.5 in)	21 years	20 of 100 (Routine)
31 May 1904	Ringwood 2, AU	daily rain	30.5 mm (1.2 in)	6.9 mm (0.27 in)	21 years	19 of 100 (Routine)
31 May 1904	Hastings Post Office, AU	daily rain	15.0 mm (0.6 in)	5.1 mm (0.20 in)	27 years	18 of 100 (Routine)
31 May 1904	Melbourne Regional Office, AU	daily rain	9.7 mm (0.38 in)	1.3 mm (0.05 in)	37 years	18 of 100 (Routine)
31 May 1904	Trenton 2, US	daily rain	52.1 mm (2.1 in)	10.2 mm (0.4 in)	25 years	18 of 100 (Routine)
31 May 1904	Woodstock, CA	daily rain	18.8 mm (0.7 in)	3.6 mm (0.14 in)	24 years	14 of 100 (Routine)
31 May 1904	Middletown 4 W, US	daily rain	31.8 mm (1.3 in)	8.9 mm (0.35 in)	6 years	13 of 100 (Routine)
31 May 1904	Philadelphia City, US	daily rain	17.8 mm (0.7 in)	5.4 mm (0.21 in)	18 years	13 of 100 (Routine)
31 May 1904	Werribee (Wyndham), AU	daily rain	7.9 mm (0.31 in)	0.8 mm (0.03 in)	27 years	12 of 100 (Routine)
31 May 1904	Halifax, CA	daily high min	10.0 C (50.0 F)	0.6 C (1.1 F)	22 years	11 of 100 (Routine)
31 May 1904	Cape Otway Lighthouse, AU	daily low max	10.6 C (51.1 F)	1.6 C (2.9 F)	4 years	10 of 100 (Routine)
31 May 1904	Cape Otway Lighthouse, AU	daily rain	16.8 mm (0.7 in)	3.6 mm (0.14 in)	4 years	10 of 100 (Routine)
31 May 1904	Cleveland 2717 Euclid, US	daily rain	33.3 mm (1.3 in)	2.8 mm (0.11 in)	9 years	8 of 100 (Routine)
31 May 1904	Ferntree Gully, AU	daily rain	29.5 mm (1.2 in)	1.8 mm (0.07 in)	10 years	7 of 100 (Routine)
31 May 1904	Toronto, CA	daily rain	27.4 mm (1.1 in)	0.7 mm (0.03 in)	3 years	6 of 100 (Routine)
31 May 1904	Cleveland 2717 Euclid, US	daily low max (Tie)	13.3 C (55.9 F)	tie	14 years	1 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 1904

Records set or tied on this calendar date in each year from 1811 to 1904. 1904 had 19 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 1904-05-31: 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	10
5 to 10	4
10 to 15	2
15 to 20	0
20 to 25	1
25 to 30	0
30 to 35	1