Weather Records on 4 May 1930

269 weather records were set or tied worldwide on 4 May 1930. Highest significance: Katoomba (Murri St), AU.

Key Facts for 4 May 1930

On 4 May 1930, 269 weather records were set or tied at long-record stations worldwide.
141 were record highs and 44 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 261 daily.
Katoomba (Murri St) set a daily record precipitation of 116.6 mm (4.6 in) on 4 May 1930.
Across 163 earlier years (1795 to 2026) the same calendar date averaged 431 records.

Record Map

269 stations

269 station records on 4 May 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 May 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Katoomba (Murri St)	Australia	Record daily precipitation	116.6 mm (4.6 in)	52 of 100 (Notable)
Bungonia (Inverary Park)	Australia	Record daily precipitation	47.8 mm (1.9 in)	38 of 100 (Notable)
Mount Wilson (Nooroo)	Australia	Record daily precipitation	75.7 mm (3.0 in)	35 of 100 (Notable)
Hot Springs 1 NNE	United States	Record daily precipitation	96.8 mm (3.8 in)	34 of 100 (Routine)
Mount Victoria (Mt Victoria (S	Australia	Record daily precipitation	64.3 mm (2.5 in)	32 of 100 (Routine)
Oberon (Jenolan Caves)	Australia	Record daily precipitation	27.2 mm (1.1 in)	27 of 100 (Routine)
Bilpin (Fern Grove)	Australia	Record daily precipitation	82.8 mm (3.3 in)	27 of 100 (Routine)
Picton Council Depot	Australia	Record daily precipitation	34.3 mm (1.4 in)	26 of 100 (Routine)
Lemon Cove	United States	Record low maximum temperature	10.0 C (50.0 F)	25 of 100 (Routine)
Oakbank	Canada	Record high minimum temperature	16.7 C (62.1 F)	24 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high minimum temperature	3.8 C (38.8 F)	24 of 100 (Routine)
Merced	United States	Record low maximum temperature	11.1 C (52.0 F)	23 of 100 (Routine)
Camden (Brownlow Hill)	Australia	Record daily precipitation	31.8 mm (1.3 in)	22 of 100 (Routine)
Hambantota	Sri Lanka	Record low maximum temperature	28.2 C (82.8 F)	22 of 100 (Routine)
San Jacinto	United States	Record low maximum temperature	10.6 C (51.1 F)	21 of 100 (Routine)
Red Bluff Muni AP	United States	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Beowawe	United States	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Mina	United States	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Napa State Hospital	United States	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Walnut Grove	United States	Record daily snowfall	3.8 cm (1.5 in)	20 of 100 (Routine)
Taralga (Grathawai)	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
San Bernardino F S 226	United States	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Chatsbury (Maryland)	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Pinal Rch	United States	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Glenbie	Australia	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Claremont Pomona Clg	United States	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Buckeye	United States	Record daily precipitation	7.1 mm (0.28 in)	20 of 100 (Routine)
Crookwell Post Office	Australia	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Oroville 1 N	United States	Record daily precipitation	5.1 mm (0.20 in)	20 of 100 (Routine)
Cairns Post Office	Australia	Record high maximum temperature	32.2 C (90.0 F)	19 of 100 (Routine)
St Albans	Canada	Record high minimum temperature	16.7 C (62.1 F)	19 of 100 (Routine)
Nikolaev	Ukraine	Record daily precipitation	7.0 mm (0.28 in)	19 of 100 (Routine)
Paso Robles	United States	Record daily precipitation	11.4 mm (0.4 in)	19 of 100 (Routine)
Santa Maria	United States	Record low maximum temperature	13.9 C (57.0 F)	19 of 100 (Routine)
Garden City	United States	Record daily precipitation	30.0 mm (1.2 in)	19 of 100 (Routine)
Sandy Lake Dam Libby	United States	Record high minimum temperature	11.7 C (53.1 F)	19 of 100 (Routine)
Glendive	United States	Record daily precipitation	19.1 mm (0.8 in)	19 of 100 (Routine)
Grafton	United States	Record high minimum temperature	14.4 C (57.9 F)	19 of 100 (Routine)
Cobbity (Roseneath)	Australia	Record daily precipitation	29.2 mm (1.1 in)	18 of 100 (Routine)
Medicine Hat A	Canada	Record daily precipitation	13.5 mm (0.5 in)	18 of 100 (Routine)
Treherne	Canada	Record high minimum temperature	15.0 C (59.0 F)	18 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record high minimum temperature	16.7 C (62.1 F)	18 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high maximum temperature	11.8 C (53.2 F)	18 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record daily precipitation	4.8 mm (0.19 in)	18 of 100 (Routine)
Buckeye	United States	Record low maximum temperature	18.9 C (66.0 F)	18 of 100 (Routine)
Mesa	United States	Record daily precipitation	10.4 mm (0.4 in)	18 of 100 (Routine)
Logan 1 WNW	United States	Record high minimum temperature	18.9 C (66.0 F)	18 of 100 (Routine)
Hallock	United States	Record high minimum temperature	15.6 C (60.1 F)	18 of 100 (Routine)
Poplar 2 E	United States	Record daily precipitation	22.9 mm (0.9 in)	18 of 100 (Routine)
Red Cloud	United States	Record daily precipitation	28.7 mm (1.1 in)	18 of 100 (Routine)
Greenville Dwtn AP	United States	Record high minimum temperature	17.2 C (63.0 F)	18 of 100 (Routine)
Grantsburg	United States	Record high minimum temperature	14.4 C (57.9 F)	18 of 100 (Routine)
Portland Rfc City	United States	Record low minimum temperature	2.8 C (37.0 F)	18 of 100 (Routine)
Fort Chipewyan	Canada	Record low maximum temperature	-2.8 C (27.0 F)	17 of 100 (Routine)
Walnut Grove	United States	Record daily precipitation	19.1 mm (0.8 in)	17 of 100 (Routine)
Bakersfield	United States	Record low maximum temperature	15.0 C (59.0 F)	17 of 100 (Routine)
Minneapolis	United States	Record daily precipitation	27.4 mm (1.1 in)	17 of 100 (Routine)
Winnibigoshish Dam	United States	Record high minimum temperature	13.3 C (55.9 F)	17 of 100 (Routine)
Fairmont	United States	Record daily precipitation	26.7 mm (1.1 in)	17 of 100 (Routine)
Yemassee 1 N	United States	Record daily precipitation	31.2 mm (1.2 in)	17 of 100 (Routine)

Counts by Type and Timescale

269 records

Records set or tied on 4 May 1930 by type: Highest daily maximum 58, Lowest daily maximum 23, Highest daily minimum 83, Lowest daily minimum 21, Heaviest daily rainfall 83, Heaviest daily snowfall 1.

Records on 4 May 1930 by type
Record type	Records
Highest daily maximum	58
Lowest daily maximum	23
Highest daily minimum	83
Lowest daily minimum	21
Heaviest daily rainfall	83
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 4 May 1930 by timescale: all-time 0, monthly 8, daily 261.

How Much Records Were Beaten By

210 broken records

Margins by which the 210 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 94.2. Ties are not counted.

Top 20 by Significance

4 May 1930

Top 20 records on 4 May 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 May 1930	Katoomba (Murri St), AU	daily rain	116.6 mm (4.6 in)	94.2 mm (3.7 in)	27 years	52 of 100 (Notable)
4 May 1930	Bungonia (Inverary Park), AU	daily rain	47.8 mm (1.9 in)	40.9 mm (1.6 in)	3 years	38 of 100 (Notable)
4 May 1930	Mount Wilson (Nooroo), AU	daily rain	75.7 mm (3.0 in)	45.2 mm (1.8 in)	31 years	35 of 100 (Notable)
4 May 1930	Hot Springs 1 NNE, US	daily rain	96.8 mm (3.8 in)	46.0 mm (1.8 in)	34 years	34 of 100 (Routine)
4 May 1930	Mount Victoria (Mt Victoria (S, AU	daily rain	64.3 mm (2.5 in)	31.0 mm (1.2 in)	24 years	32 of 100 (Routine)
4 May 1930	Oberon (Jenolan Caves), AU	daily rain	27.2 mm (1.1 in)	17.8 mm (0.7 in)	11 years	27 of 100 (Routine)
4 May 1930	Bilpin (Fern Grove), AU	daily rain	82.8 mm (3.3 in)	37.1 mm (1.5 in)	11 years	27 of 100 (Routine)
4 May 1930	Picton Council Depot, AU	daily rain	34.3 mm (1.4 in)	21.3 mm (0.8 in)	24 years	26 of 100 (Routine)
4 May 1930	Lemon Cove, US	daily low max	10.0 C (50.0 F)	7.8 C (14.0 F)	24 years	25 of 100 (Routine)
4 May 1930	Oakbank, CA	daily high min	16.7 C (62.1 F)	5.6 C (10.1 F)	34 years	24 of 100 (Routine)
4 May 1930	Ilulissat (Jakobshavn), GL	daily high min	3.8 C (38.8 F)	1.5 C (2.7 F)	55 years	24 of 100 (Routine)
4 May 1930	Merced, US	monthly low max	11.1 C (52.0 F)	3.3 C (5.9 F)	15 years	23 of 100 (Routine)
4 May 1930	Camden (Brownlow Hill), AU	daily rain	31.8 mm (1.3 in)	17.6 mm (0.7 in)	24 years	22 of 100 (Routine)
4 May 1930	Hambantota, LK	daily low max	28.2 C (82.8 F)	0.1 C (0.2 F)	55 years	22 of 100 (Routine)
4 May 1930	San Jacinto, US	monthly low max	10.6 C (51.1 F)	1.1 C (2.0 F)	25 years	21 of 100 (Routine)
4 May 1930	Red Bluff Muni AP, US	daily rain	24.4 mm (1.0 in)	18.0 mm (0.7 in)	29 years	20 of 100 (Routine)
4 May 1930	Beowawe, US	daily rain	10.9 mm (0.4 in)	10.9 mm (0.4 in)	36 years	20 of 100 (Routine)
4 May 1930	Mina, US	daily rain	22.9 mm (0.9 in)	16.5 mm (0.6 in)	29 years	20 of 100 (Routine)
4 May 1930	Napa State Hospital, US	daily rain	13.5 mm (0.5 in)	12.0 mm (0.5 in)	34 years	20 of 100 (Routine)
4 May 1930	Walnut Grove, US	monthly snowfall	3.8 cm (1.5 in)	3.8 cm (1.5 in)	33 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

1795 to 1930

Records set or tied on this calendar date in each year from 1795 to 1930. 1930 had 269 records.

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

Records on 05-04 in each year
Year	Records
1795	1
1796	1
1820	1
1836	2
1840	1
1847	1
1850	2
1851	2
1852	1
1856	3
1858	1
1859	1
1861	2
1862	1
1864	3
1865	2
1868	3
1869	1
1870	2
1875	1
1877	2
1878	1
1879	1
1880	1
1882	1
1885	1
1886	1
1888	1
1889	4
1890	1
1892	4
1893	3
1894	6
1895	3
1896	3
1897	2
1898	2
1899	2
1900	2
1902	5
1903	8
1904	8
1905	19
1906	5
1907	37
1908	18
1909	13
1910	14
1911	37
1912	12
1913	63
1914	21
1915	75
1916	57
1917	60
1918	30
1919	69
1920	43
1921	62
1922	283
1923	82
1924	88
1925	80
1926	230
1927	112
1928	205
1929	177
1930	269
1931	169
1932	104
1933	274
1934	456
1935	518
1936	313
1937	230
1938	445
1939	295
1940	602
1941	436
1942	820
1943	358
1944	872
1945	654
1946	463
1947	649
1948	578
1949	1,130
1950	953
1951	292
1952	698
1953	389
1954	1,045
1955	471
1956	433
1957	433
1958	414
1959	613
1960	443
1961	466
1962	265
1963	313
1964	570
1965	433
1966	1,113
1967	928
1968	304
1969	377
1970	454
1971	810
1972	364
1973	313
1974	367
1975	683
1976	554
1977	736
1978	1,016
1979	1,529
1980	511
1981	667
1982	591
1983	539
1984	885
1985	821
1986	1,128
1987	1,004
1988	591
1989	743
1990	1,461
1991	1,088
1992	933
1993	791
1994	821
1995	974
1996	1,298
1997	962
1998	898
1999	1,167
2000	1,398
2001	1,345
2002	1,343
2003	1,158
2004	1,341
2005	1,152
2006	650
2007	699
2008	624
2009	727
2010	999
2011	1,023
2012	1,343
2013	1,447
2014	602
2015	622
2016	463
2017	669
2018	972
2019	574
2020	504
2021	616
2022	470
2023	681
2024	885
2025	456
2026	554

Download the Data

Data for records on 1930-05-04: 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 20	201
20 to 40	5
40 to 60	3
60 to 80	0
80 to 100	1