Weather Records on 30 May 1925

190 weather records were set or tied worldwide on 30 May 1925. Highest significance: Mitcham Post Office, AU.

Key Facts for 30 May 1925

On 30 May 1925, 190 weather records were set or tied at long-record stations worldwide.
110 were record highs and 9 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 15 monthly and 175 daily.
Mitcham Post Office set a daily record precipitation of 59.7 mm (2.4 in) on 30 May 1925.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 440 records.

Record Map

190 stations

190 station records on 30 May 1925 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1925: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mitcham Post Office	Australia	Record daily precipitation	59.7 mm (2.4 in)	42 of 100 (Notable)
Belair (State Flora Nursery)	Australia	Record daily precipitation	72.1 mm (2.8 in)	40 of 100 (Notable)
Wilsons Promontory Lighthouse	Australia	Record daily precipitation	37.1 mm (1.5 in)	38 of 100 (Notable)
Dunmurray	South Africa	Record daily precipitation	46.7 mm (1.8 in)	35 of 100 (Notable)
Gabo Island Lighthouse	Australia	Record daily precipitation	40.9 mm (1.6 in)	34 of 100 (Routine)
Sturt	Australia	Record daily precipitation	41.9 mm (1.6 in)	31 of 100 (Routine)
Goose Island	Australia	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Molteno (Mun)	South Africa	Record daily precipitation	25.1 mm (1.0 in)	27 of 100 (Routine)
Glenelg Post Office	Australia	Record daily precipitation	43.4 mm (1.7 in)	24 of 100 (Routine)
Uraidla	Australia	Record daily precipitation	71.6 mm (2.8 in)	23 of 100 (Routine)
Hanover (Pol)	South Africa	Record daily precipitation	27.2 mm (1.1 in)	23 of 100 (Routine)
Noupoort	South Africa	Record daily precipitation	27.9 mm (1.1 in)	23 of 100 (Routine)
Aberdeen	United States	Record high maximum temperature	37.2 C (99.0 F)	23 of 100 (Routine)
Minnedosa	Canada	Record daily precipitation	26.4 mm (1.0 in)	22 of 100 (Routine)
Collegeville St John's	United States	Record high maximum temperature	32.2 C (90.0 F)	22 of 100 (Routine)
Bridgewater	Australia	Record daily precipitation	67.3 mm (2.6 in)	21 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	35.0 C (95.0 F)	21 of 100 (Routine)
Kamloops	Canada	Record daily precipitation	12.4 mm (0.5 in)	20 of 100 (Routine)
Fraserburg	South Africa	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Queenstown	South Africa	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Vasilevici	Belarus	Record daily precipitation	21.5 mm (0.8 in)	20 of 100 (Routine)
Cathcart	South Africa	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Barkly East	South Africa	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Fergana	Uzbekistan	Record daily precipitation	10.3 mm (0.4 in)	20 of 100 (Routine)
Ellesmere	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Herschel	South Africa	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Smithfield (Mun)	South Africa	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Deal Island	Australia	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Atyrau	Kazakhstan	Record daily precipitation	7.2 mm (0.28 in)	20 of 100 (Routine)
Cheviot Fells	South Africa	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Buffelsfontein 14	South Africa	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Mt Pleasant 1 SW	United States	Record daily precipitation	40.4 mm (1.6 in)	20 of 100 (Routine)
Huron Rgnl AP	United States	Record high maximum temperature	33.9 C (93.0 F)	20 of 100 (Routine)
Hahndorf	Australia	Record daily precipitation	60.7 mm (2.4 in)	19 of 100 (Routine)
Stradbroke Post Office	Australia	Record daily precipitation	22.1 mm (0.9 in)	18 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record high minimum temperature	8.3 C (46.9 F)	18 of 100 (Routine)
Mahackala	Russia	Record high minimum temperature	20.5 C (68.9 F)	18 of 100 (Routine)
Kamferskraal	South Africa	Record daily precipitation	7.1 mm (0.28 in)	18 of 100 (Routine)
Aliwal North	South Africa	Record daily precipitation	15.7 mm (0.6 in)	18 of 100 (Routine)
Philippolis (Pol)	South Africa	Record daily precipitation	19.1 mm (0.8 in)	18 of 100 (Routine)
Meeker	United States	Record high minimum temperature	12.2 C (54.0 F)	18 of 100 (Routine)
Blue Hill Coop	United States	Record daily precipitation	17.3 mm (0.7 in)	18 of 100 (Routine)
Philipstown (Tnk)	South Africa	Record daily precipitation	26.2 mm (1.0 in)	17 of 100 (Routine)
Santa Cruz	United States	Record daily precipitation	12.7 mm (0.5 in)	17 of 100 (Routine)
Forestburg 4 NNE	United States	Record high maximum temperature	37.2 C (99.0 F)	17 of 100 (Routine)
Oudtshoorn	South Africa	Record daily precipitation	9.1 mm (0.36 in)	16 of 100 (Routine)
Plymouth-Kingston	United States	Record daily precipitation	18.8 mm (0.7 in)	16 of 100 (Routine)
Woodside	Australia	Record daily precipitation	48.5 mm (1.9 in)	15 of 100 (Routine)
Surgut	Russia	Record low minimum temperature	-4.0 C (24.8 F)	15 of 100 (Routine)
Bakensrug	South Africa	Record daily precipitation	7.4 mm (0.29 in)	15 of 100 (Routine)
Tarkastad (Pol)	South Africa	Record daily precipitation	14.7 mm (0.6 in)	15 of 100 (Routine)
Steynsburg	South Africa	Record daily precipitation	16.3 mm (0.6 in)	15 of 100 (Routine)
Douglas	South Africa	Record daily precipitation	22.9 mm (0.9 in)	15 of 100 (Routine)
Spearfish	United States	Record high minimum temperature	17.2 C (63.0 F)	15 of 100 (Routine)
Fort National	Algeria	Record low minimum temperature	6.0 C (42.8 F)	14 of 100 (Routine)
Wellwood	South Africa	Record daily precipitation	12.7 mm (0.5 in)	14 of 100 (Routine)
Newlands	South Africa	Record daily precipitation	12.7 mm (0.5 in)	14 of 100 (Routine)
Rio Vista	United States	Record daily precipitation	1.3 mm (0.05 in)	14 of 100 (Routine)
Fairmont	United States	Record high maximum temperature	35.0 C (95.0 F)	14 of 100 (Routine)
Fergus Falls	United States	Record high maximum temperature	36.1 C (97.0 F)	14 of 100 (Routine)

Counts by Type and Timescale

190 records

Records set or tied on 30 May 1925 by type: Highest daily maximum 77, Lowest daily maximum 2, Highest daily minimum 33, Lowest daily minimum 7, Heaviest daily rainfall 71.

Records on 30 May 1925 by type
Record type	Records
Highest daily maximum	77
Lowest daily maximum	2
Highest daily minimum	33
Lowest daily minimum	7
Heaviest daily rainfall	71
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 May 1925 by timescale: all-time 0, monthly 15, daily 175.

How Much Records Were Beaten By

157 broken records

Margins by which the 157 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 32.5. Ties are not counted.

Top 20 by Significance

30 May 1925

Top 20 records on 30 May 1925 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1925	Mitcham Post Office, AU	daily rain	59.7 mm (2.4 in)	32.5 mm (1.3 in)	3 years	42 of 100 (Notable)
30 May 1925	Belair (State Flora Nursery), AU	monthly rain	72.1 mm (2.8 in)	14.4 mm (0.6 in)	27 years	40 of 100 (Notable)
30 May 1925	Wilsons Promontory Lighthouse, AU	daily rain	37.1 mm (1.5 in)	19.1 mm (0.8 in)	35 years	38 of 100 (Notable)
30 May 1925	Dunmurray, ZA	monthly rain	46.7 mm (1.8 in)	12.4 mm (0.5 in)	19 years	35 of 100 (Notable)
30 May 1925	Gabo Island Lighthouse, AU	daily rain	40.9 mm (1.6 in)	17.5 mm (0.7 in)	55 years	34 of 100 (Routine)
30 May 1925	Sturt, AU	daily rain	41.9 mm (1.6 in)	20.1 mm (0.8 in)	4 years	31 of 100 (Routine)
30 May 1925	Goose Island, AU	daily rain	25.4 mm (1.0 in)	16.5 mm (0.6 in)	2 years	28 of 100 (Routine)
30 May 1925	Molteno (Mun), ZA	daily rain	25.1 mm (1.0 in)	16.2 mm (0.6 in)	20 years	27 of 100 (Routine)
30 May 1925	Glenelg Post Office, AU	monthly rain	43.4 mm (1.7 in)	2.5 mm (0.10 in)	25 years	24 of 100 (Routine)
30 May 1925	Uraidla, AU	daily rain	71.6 mm (2.8 in)	24.1 mm (0.9 in)	4 years	23 of 100 (Routine)
30 May 1925	Hanover (Pol), ZA	daily rain	27.2 mm (1.1 in)	13.0 mm (0.5 in)	20 years	23 of 100 (Routine)
30 May 1925	Noupoort, ZA	daily rain	27.9 mm (1.1 in)	11.4 mm (0.4 in)	20 years	23 of 100 (Routine)
30 May 1925	Aberdeen, US	monthly high max	37.2 C (99.0 F)	1.6 C (2.9 F)	28 years	23 of 100 (Routine)
30 May 1925	Minnedosa, CA	daily rain	26.4 mm (1.0 in)	9.4 mm (0.37 in)	19 years	22 of 100 (Routine)
30 May 1925	Collegeville St John's, US	monthly high max	32.2 C (90.0 F)	0.5 C (0.9 F)	31 years	22 of 100 (Routine)
30 May 1925	Bridgewater, AU	monthly rain	67.3 mm (2.6 in)	5.8 mm (0.23 in)	8 years	21 of 100 (Routine)
30 May 1925	Morris W Cntrl Rsch & Outreach, US	monthly high max	35.0 C (95.0 F)	0.6 C (1.1 F)	24 years	21 of 100 (Routine)
30 May 1925	Kamloops, CA	daily rain	12.4 mm (0.5 in)	8.8 mm (0.35 in)	23 years	20 of 100 (Routine)
30 May 1925	Fraserburg, ZA	daily rain	12.7 mm (0.5 in)	10.7 mm (0.4 in)	29 years	20 of 100 (Routine)
30 May 1925	Queenstown, ZA	daily rain	8.9 mm (0.35 in)	8.9 mm (0.35 in)	40 years	20 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

1818 to 1925

Records set or tied on this calendar date in each year from 1818 to 1925. 1925 had 190 records.

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

Records on 05-30 in each year
Year	Records
1818	3
1844	1
1847	1
1848	1
1852	1
1853	1
1855	1
1856	1
1858	1
1860	2
1863	1
1864	1
1865	4
1867	1
1868	4
1870	1
1871	2
1873	4
1878	1
1879	1
1880	2
1881	1
1882	2
1883	1
1884	2
1885	1
1886	1
1887	1
1889	3
1890	1
1891	1
1892	2
1893	7
1894	2
1895	5
1896	1
1897	1
1898	2
1899	4
1900	1
1901	4
1902	9
1903	12
1904	7
1905	20
1906	8
1907	20
1908	32
1909	6
1910	22
1911	22
1912	26
1913	89
1914	25
1915	32
1916	41
1917	42
1918	31
1919	90
1920	28
1921	392
1922	72
1923	121
1924	187
1925	190
1926	201
1927	177
1928	86
1929	368
1930	530
1931	316
1932	256
1933	250
1934	731
1935	88
1936	579
1937	440
1938	309
1939	336
1940	289
1941	518
1942	500
1943	444
1944	325
1945	383
1946	310
1947	880
1948	386
1949	318
1950	376
1951	448
1952	295
1953	622
1954	271
1955	377
1956	466
1957	267
1958	480
1959	419
1960	274
1961	657
1962	454
1963	245
1964	709
1965	454
1966	326
1967	859
1968	357
1969	1,092
1970	483
1971	1,044
1972	721
1973	391
1974	631
1975	776
1976	499
1977	444
1978	888
1979	1,185
1980	650
1981	1,001
1982	981
1983	1,310
1984	2,543
1985	772
1986	1,264
1987	1,021
1988	1,371
1989	1,021
1990	983
1991	1,264
1992	1,413
1993	690
1994	834
1995	777
1996	893
1997	936
1998	1,190
1999	1,113
2000	1,391
2001	854
2002	940
2003	1,110
2004	1,219
2005	737
2006	1,179
2007	1,128
2008	829
2009	480
2010	771
2011	1,914
2012	720
2013	821
2014	551
2015	699
2016	540
2017	657
2018	1,319
2019	706
2020	920
2021	841
2022	1,034
2023	344
2024	600
2025	828
2026	525

Download the Data

Data for records on 1925-05-30: 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 2026-10-16 (16 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	113
5 to 10	22
10 to 15	13
15 to 20	6
20 to 25	2
25 to 30	0
30 to 35	1