Weather Records on 30 May 1942

500 weather records were set or tied worldwide on 30 May 1942. Highest significance: Hamilton, CA.

Key Facts for 30 May 1942

On 30 May 1942, 500 weather records were set or tied at long-record stations worldwide.
297 were record highs and 56 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 25 monthly and 474 daily.
Hamilton set a daily record precipitation of 58.4 mm (2.3 in) on 30 May 1942.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 438 records.

Record Map

500 stations

500 station records on 30 May 1942 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1942: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hamilton	Canada	Record daily precipitation	58.4 mm (2.3 in)	57 of 100 (Notable)
Orskar_A	Sweden	Record daily precipitation	29.7 mm (1.2 in)	52 of 100 (Notable)
Minneapolis Wb Dwtn	United States	Record daily precipitation	88.4 mm (3.5 in)	52 of 100 (Notable)
Sturgeon Bay Exp Farm	United States	Record daily precipitation	47.2 mm (1.9 in)	51 of 100 (Notable)
Montevideo 1SW	United States	Record daily precipitation	67.3 mm (2.6 in)	50 of 100 (Notable)
Mount Forest	Canada	Record daily precipitation	28.2 mm (1.1 in)	48 of 100 (Notable)
Merrill	United States	Record daily precipitation	50.5 mm (2.0 in)	47 of 100 (Notable)
Milan 1NW	United States	Record daily precipitation	52.3 mm (2.1 in)	46 of 100 (Notable)
Milbank 4 NW	United States	Record daily precipitation	58.9 mm (2.3 in)	46 of 100 (Notable)
Medford	United States	Record daily precipitation	66.0 mm (2.6 in)	45 of 100 (Notable)
Maple Plain	United States	Record daily precipitation	64.8 mm (2.6 in)	44 of 100 (Notable)
Holmogadd A	Sweden	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Toronto Agincourt	Canada	Record daily precipitation	47.2 mm (1.9 in)	37 of 100 (Notable)
Meadow Valley Rs	United States	Record daily precipitation	37.1 mm (1.5 in)	37 of 100 (Notable)
Jokkmokk	Sweden	Record daily precipitation	25.5 mm (1.0 in)	36 of 100 (Notable)
Weyerhaeuser 1N	United States	Record daily precipitation	70.1 mm (2.8 in)	36 of 100 (Notable)
Rabbit Fence 90 Mile	Australia	Record daily precipitation	39.6 mm (1.6 in)	32 of 100 (Routine)
Kvikkjokk-Arrenjarka	Sweden	Record daily precipitation	32.3 mm (1.3 in)	32 of 100 (Routine)
Eureka	United States	Record daily precipitation	89.9 mm (3.5 in)	32 of 100 (Routine)
Appleton	United States	Record daily precipitation	33.8 mm (1.3 in)	31 of 100 (Routine)
Markapur	India	Record daily precipitation	41.9 mm (1.6 in)	30 of 100 (Routine)
Jagdalpur	India	Record daily precipitation	50.0 mm (2.0 in)	30 of 100 (Routine)
Gladwin	United States	Record daily precipitation	25.9 mm (1.0 in)	30 of 100 (Routine)
Rockville	United States	Record high minimum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Howard	United States	Record daily precipitation	36.1 mm (1.4 in)	29 of 100 (Routine)
New London	United States	Record daily precipitation	64.0 mm (2.5 in)	28 of 100 (Routine)
Wentworth 2.5 WNW	United States	Record daily precipitation	49.3 mm (1.9 in)	28 of 100 (Routine)
Pipestone	United States	Record daily precipitation	49.5 mm (1.9 in)	27 of 100 (Routine)
Toronto	Canada	Record daily precipitation	25.7 mm (1.0 in)	26 of 100 (Routine)
Krishnarajpet	India	Record daily precipitation	45.7 mm (1.8 in)	26 of 100 (Routine)
Shimoga	India	Record daily precipitation	92.5 mm (3.6 in)	26 of 100 (Routine)
Independence	United States	Record high minimum temperature	22.8 C (73.0 F)	26 of 100 (Routine)
Ft Pierce	United States	Record low maximum temperature	25.0 C (77.0 F)	25 of 100 (Routine)
Lisbon	United States	Record daily precipitation	34.0 mm (1.3 in)	25 of 100 (Routine)
De Smet	United States	Record daily precipitation	34.0 mm (1.3 in)	25 of 100 (Routine)
Dolphin@S Nose Obsy	India	Record daily precipitation	45.5 mm (1.8 in)	24 of 100 (Routine)
Harnosand	Sweden	Record daily precipitation	27.0 mm (1.1 in)	24 of 100 (Routine)
Pontiac Wwtp	United States	Record daily precipitation	33.3 mm (1.3 in)	24 of 100 (Routine)
Ithaca Cornell UNIV	United States	Record high minimum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
New Castle 1 N	United States	Record daily precipitation	34.0 mm (1.3 in)	24 of 100 (Routine)
Tomahawk Spirit Rsvr	United States	Record daily precipitation	27.9 mm (1.1 in)	24 of 100 (Routine)
Guelph Oac	Canada	Record daily precipitation	54.4 mm (2.1 in)	23 of 100 (Routine)
Kumsi	India	Record daily precipitation	30.5 mm (1.2 in)	23 of 100 (Routine)
Alkmaar	South Africa	Record daily precipitation	33.3 mm (1.3 in)	23 of 100 (Routine)
Salamonia	United States	Record high minimum temperature	22.8 C (73.0 F)	23 of 100 (Routine)
Ft Scott	United States	Record high minimum temperature	23.9 C (75.0 F)	23 of 100 (Routine)
Hays 1 S	United States	Record high minimum temperature	20.0 C (68.0 F)	23 of 100 (Routine)
Pine Rvr Dam	United States	Record daily precipitation	29.2 mm (1.1 in)	23 of 100 (Routine)
Kirksville	United States	Record high minimum temperature	21.7 C (71.1 F)	23 of 100 (Routine)
Neosho	United States	Record high minimum temperature	22.8 C (73.0 F)	23 of 100 (Routine)
Flandreau	United States	Record daily precipitation	51.3 mm (2.0 in)	23 of 100 (Routine)
Rhinelander	United States	Record daily precipitation	26.7 mm (1.1 in)	23 of 100 (Routine)
Rpf 126 Mile	Australia	Record daily precipitation	48.8 mm (1.9 in)	22 of 100 (Routine)
Fayetteville	United States	Record high minimum temperature	21.7 C (71.1 F)	22 of 100 (Routine)
Milford 2 SE	United States	Record high maximum temperature	36.1 C (97.0 F)	22 of 100 (Routine)
Mascoutah	United States	Record high minimum temperature	24.4 C (75.9 F)	22 of 100 (Routine)
Hutchinson River	United States	Record high minimum temperature	21.1 C (70.0 F)	22 of 100 (Routine)
Holland Wtp	United States	Record high maximum temperature	34.4 C (93.9 F)	22 of 100 (Routine)
Moorestown 4 E	United States	Record high maximum temperature	35.0 C (95.0 F)	22 of 100 (Routine)
Ashland	United States	Record high minimum temperature	20.6 C (69.1 F)	22 of 100 (Routine)

Counts by Type and Timescale

500 records

Records set or tied on 30 May 1942 by type: Highest daily maximum 76, Lowest daily maximum 35, Highest daily minimum 221, Lowest daily minimum 21, Heaviest daily rainfall 146, Heaviest daily snowfall 1.

Records on 30 May 1942 by type
Record type	Records
Highest daily maximum	76
Lowest daily maximum	35
Highest daily minimum	221
Lowest daily minimum	21
Heaviest daily rainfall	146
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 30 May 1942 by timescale: all-time 1, monthly 25, daily 474.

How Much Records Were Beaten By

364 broken records

Margins by which the 364 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 51.0. Ties are not counted.

Top 20 by Significance

30 May 1942

Top 20 records on 30 May 1942 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1942	Hamilton, CA	daily rain	58.4 mm (2.3 in)	30.7 mm (1.2 in)	61 years	57 of 100 (Notable)
30 May 1942	Orskar_A, SE	daily rain	29.7 mm (1.2 in)	17.6 mm (0.7 in)	39 years	52 of 100 (Notable)
30 May 1942	Minneapolis Wb Dwtn, US	daily rain	88.4 mm (3.5 in)	42.7 mm (1.7 in)	24 years	52 of 100 (Notable)
30 May 1942	Sturgeon Bay Exp Farm, US	daily rain	47.2 mm (1.9 in)	38.3 mm (1.5 in)	28 years	51 of 100 (Notable)
30 May 1942	Montevideo 1SW, US	daily rain	67.3 mm (2.6 in)	38.3 mm (1.5 in)	32 years	50 of 100 (Notable)
30 May 1942	Mount Forest, CA	daily rain	28.2 mm (1.1 in)	24.4 mm (1.0 in)	47 years	48 of 100 (Notable)
30 May 1942	Merrill, US	daily rain	50.5 mm (2.0 in)	33.2 mm (1.3 in)	28 years	47 of 100 (Notable)
30 May 1942	Milan 1NW, US	daily rain	52.3 mm (2.1 in)	31.5 mm (1.2 in)	32 years	46 of 100 (Notable)
30 May 1942	Milbank 4 NW, US	daily rain	58.9 mm (2.3 in)	36.8 mm (1.4 in)	33 years	46 of 100 (Notable)
30 May 1942	Medford, US	daily rain	66.0 mm (2.6 in)	30.4 mm (1.2 in)	33 years	45 of 100 (Notable)
30 May 1942	Maple Plain, US	daily rain	64.8 mm (2.6 in)	34.3 mm (1.4 in)	24 years	44 of 100 (Notable)
30 May 1942	Holmogadd A, SE	daily rain	25.4 mm (1.0 in)	11.8 mm (0.5 in)	48 years	42 of 100 (Notable)
30 May 1942	Toronto Agincourt, CA	daily rain	47.2 mm (1.9 in)	22.8 mm (0.9 in)	25 years	37 of 100 (Notable)
30 May 1942	Meadow Valley Rs, US	daily rain	37.1 mm (1.5 in)	26.7 mm (1.1 in)	20 years	37 of 100 (Notable)
30 May 1942	Jokkmokk, SE	daily rain	25.5 mm (1.0 in)	11.5 mm (0.5 in)	16 years	36 of 100 (Notable)
30 May 1942	Weyerhaeuser 1N, US	monthly rain	70.1 mm (2.8 in)	14.2 mm (0.6 in)	30 years	36 of 100 (Notable)
30 May 1942	Rabbit Fence 90 Mile, AU	daily rain	39.6 mm (1.6 in)	39.6 mm (1.6 in)	32 years	32 of 100 (Routine)
30 May 1942	Kvikkjokk-Arrenjarka, SE	monthly rain	32.3 mm (1.3 in)	6.4 mm (0.25 in)	14 years	32 of 100 (Routine)
30 May 1942	Eureka, US	all-time rain	89.9 mm (3.5 in)	1.8 mm (0.07 in)	14 years	32 of 100 (Routine)
30 May 1942	Appleton, US	daily rain	33.8 mm (1.3 in)	23.4 mm (0.9 in)	0 years	31 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 1942

Records set or tied on this calendar date in each year from 1818 to 1942. 1942 had 500 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 1942-05-30: 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 2026-10-17 (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).

Histogram of margins by which records were beaten on 30 May 1942
Margin	Records
0 to 10	313
10 to 20	28
20 to 30	10
30 to 40	11
40 to 50	1
50 to 60	1