Weather Records on 30 May 1955

377 weather records were set or tied worldwide on 30 May 1955. Highest significance: Swaziland Ranch-Homest, SZ.

Key Facts for 30 May 1955

On 30 May 1955, 377 weather records were set or tied at long-record stations worldwide.
47 were record highs and 178 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 369 daily.
Swaziland Ranch-Homest set a daily record precipitation of 34.0 mm (1.3 in) on 30 May 1955.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 439 records.

Record Map

377 stations

377 station records on 30 May 1955 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1955: highest significance records shown on the map
Station	Country	Type	Value	Significance
Swaziland Ranch-Homest	Swaziland	Record daily precipitation	34.0 mm (1.3 in)	55 of 100 (Notable)
Shrigonda	India	Record daily precipitation	66.0 mm (2.6 in)	48 of 100 (Notable)
Ft Fairfield 5 NE	United States	Record daily precipitation	44.5 mm (1.8 in)	48 of 100 (Notable)
McCulloch	Canada	Record daily snowfall	17.8 cm (7.0 in)	47 of 100 (Notable)
Ashland	United States	Record daily precipitation	65.5 mm (2.6 in)	47 of 100 (Notable)
Vernon	United States	Record daily precipitation	43.4 mm (1.7 in)	46 of 100 (Notable)
Dhing	India	Record daily precipitation	96.5 mm (3.8 in)	38 of 100 (Notable)
Ripogenus Dam	United States	Record daily precipitation	44.5 mm (1.8 in)	38 of 100 (Notable)
Franklin	United States	Record daily precipitation	38.6 mm (1.5 in)	35 of 100 (Notable)
Raleigh State UNIV	United States	Record daily precipitation	33.5 mm (1.3 in)	35 of 100 (Notable)
Snoqualmie Pass	United States	Record daily snowfall	22.9 cm (9.0 in)	35 of 100 (Notable)
Warsaw 2 NW	United States	Record daily precipitation	51.3 mm (2.0 in)	34 of 100 (Routine)
Agassiz Cda	Canada	Record low maximum temperature	8.3 C (46.9 F)	33 of 100 (Routine)
Gorlitz	Germany	Record low minimum temperature	1.9 C (35.4 F)	33 of 100 (Routine)
Cedar Lake	United States	Record daily precipitation	45.5 mm (1.8 in)	33 of 100 (Routine)
Makaweli 965	United States	Record high minimum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Regensburg	Germany	Record low minimum temperature	3.2 C (37.8 F)	32 of 100 (Routine)
George School	United States	Record daily precipitation	48.0 mm (1.9 in)	32 of 100 (Routine)
Chilliwack	Canada	Record low maximum temperature	9.4 C (48.9 F)	31 of 100 (Routine)
Snoqualmie Pass	United States	Record daily precipitation	30.2 mm (1.2 in)	31 of 100 (Routine)
Fort St James	Canada	Record low maximum temperature	6.7 C (44.1 F)	30 of 100 (Routine)
Houlton	United States	Record daily precipitation	26.7 mm (1.1 in)	30 of 100 (Routine)
Hanover	United States	Record daily precipitation	47.0 mm (1.9 in)	30 of 100 (Routine)
Diablo Dam	United States	Record daily precipitation	26.7 mm (1.1 in)	30 of 100 (Routine)
Dharmsala Lower	India	Record daily precipitation	50.8 mm (2.0 in)	29 of 100 (Routine)
Ponnani	India	Record daily precipitation	87.6 mm (3.4 in)	29 of 100 (Routine)
Trichur	India	Record daily precipitation	111.5 mm (4.4 in)	29 of 100 (Routine)
Skagit Pwr Plt	United States	Record daily precipitation	30.0 mm (1.2 in)	29 of 100 (Routine)
Franklin	United States	Record high minimum temperature	18.9 C (66.0 F)	28 of 100 (Routine)
Golden A	Canada	Record low maximum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Kuttiadi	India	Record daily precipitation	217.7 mm (8.6 in)	27 of 100 (Routine)
Mechanicville 2 S	United States	Record daily precipitation	39.6 mm (1.6 in)	27 of 100 (Routine)
Concrete Ppl Fish STN	United States	Record low maximum temperature	11.1 C (52.0 F)	27 of 100 (Routine)
Highland Home	United States	Record low minimum temperature	12.8 C (55.0 F)	25 of 100 (Routine)
Keene	United States	Record daily precipitation	31.8 mm (1.3 in)	25 of 100 (Routine)
Wanakena Rngr School	United States	Record daily precipitation	30.0 mm (1.2 in)	25 of 100 (Routine)
Darlington	United States	Record daily precipitation	47.0 mm (1.9 in)	25 of 100 (Routine)
Eutawville	United States	Record daily precipitation	36.8 mm (1.4 in)	25 of 100 (Routine)
Burnet	United States	Record low minimum temperature	11.1 C (52.0 F)	25 of 100 (Routine)
Saltspring Island	Canada	Record low maximum temperature	11.1 C (52.0 F)	24 of 100 (Routine)
Hedley	Canada	Record low maximum temperature	8.3 C (46.9 F)	24 of 100 (Routine)
Kvikkjokk-Arrenjarka	Sweden	Record snow depth	22.0 cm (8.7 in)	24 of 100 (Routine)
Saguache	United States	Record high minimum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Dahlonega 4WSW	United States	Record low maximum temperature	21.1 C (70.0 F)	24 of 100 (Routine)
Grangeville	United States	Record daily precipitation	40.9 mm (1.6 in)	24 of 100 (Routine)
Kasargod	India	Record daily precipitation	117.1 mm (4.6 in)	23 of 100 (Routine)
Badagara	India	Record daily precipitation	106.7 mm (4.2 in)	23 of 100 (Routine)
Manjeri	India	Record daily precipitation	103.6 mm (4.1 in)	23 of 100 (Routine)
Dunderlandsdalen	Norway	Record snow depth	42.0 cm (16.5 in)	23 of 100 (Routine)
Tallapoosa 2 N	United States	Record low maximum temperature	21.7 C (71.1 F)	23 of 100 (Routine)
Fall Rvr Lake	United States	Record low minimum temperature	7.8 C (46.0 F)	23 of 100 (Routine)
Pocomoke City	United States	Record daily precipitation	38.4 mm (1.5 in)	23 of 100 (Routine)
Biloxi	United States	Record low minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Lynchburg 7 St Brg	United States	Record daily precipitation	44.7 mm (1.8 in)	23 of 100 (Routine)
Kilauea 1134	United States	Record low maximum temperature	24.4 C (75.9 F)	23 of 100 (Routine)
Glacier	Canada	Record low maximum temperature	4.4 C (39.9 F)	22 of 100 (Routine)
Poretskoye	Russia	Record daily precipitation	26.0 mm (1.0 in)	22 of 100 (Routine)
Auburn	United States	Record low minimum temperature	12.2 C (54.0 F)	22 of 100 (Routine)
Clanton	United States	Record low minimum temperature	11.7 C (53.1 F)	22 of 100 (Routine)
Ozark	United States	Record low minimum temperature	8.9 C (48.0 F)	22 of 100 (Routine)

Counts by Type and Timescale

377 records

Records set or tied on 30 May 1955 by type: Highest daily maximum 7, Lowest daily maximum 106, Highest daily minimum 40, Lowest daily minimum 72, Heaviest daily rainfall 137, Heaviest daily snowfall 9, Deepest snow cover 6.

Records on 30 May 1955 by type
Record type	Records
Highest daily maximum	7
Lowest daily maximum	106
Highest daily minimum	40
Lowest daily minimum	72
Heaviest daily rainfall	137
Heaviest daily snowfall	9
Deepest snow cover	6

Records on 30 May 1955 by timescale: all-time 0, monthly 8, daily 369.

How Much Records Were Beaten By

297 broken records

Margins by which the 297 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 270.0. Ties are not counted.

Top 20 by Significance

30 May 1955

Top 20 records on 30 May 1955 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1955	Swaziland Ranch-Homest, SZ	daily rain	34.0 mm (1.3 in)	34.0 mm (1.3 in)	37 years	55 of 100 (Notable)
30 May 1955	Shrigonda, IN	monthly rain	66.0 mm (2.6 in)	19.0 mm (0.7 in)	39 years	48 of 100 (Notable)
30 May 1955	Ft Fairfield 5 NE, US	daily rain	44.5 mm (1.8 in)	32.3 mm (1.3 in)	8 years	48 of 100 (Notable)
30 May 1955	McCulloch, CA	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	30 years	47 of 100 (Notable)
30 May 1955	Ashland, US	daily rain	65.5 mm (2.6 in)	37.6 mm (1.5 in)	40 years	47 of 100 (Notable)
30 May 1955	Vernon, US	daily rain	43.4 mm (1.7 in)	26.9 mm (1.1 in)	44 years	46 of 100 (Notable)
30 May 1955	Dhing, IN	monthly rain	96.5 mm (3.8 in)	18.5 mm (0.7 in)	40 years	38 of 100 (Notable)
30 May 1955	Ripogenus Dam, US	daily rain	44.5 mm (1.8 in)	30.3 mm (1.2 in)	0 years	38 of 100 (Notable)
30 May 1955	Franklin, US	daily rain	38.6 mm (1.5 in)	18.8 mm (0.7 in)	42 years	35 of 100 (Notable)
30 May 1955	Raleigh State UNIV, US	daily rain	33.5 mm (1.3 in)	16.7 mm (0.7 in)	55 years	35 of 100 (Notable)
30 May 1955	Snoqualmie Pass, US	daily snowfall	22.9 cm (9.0 in)	12.7 cm (5.0 in)	36 years	35 of 100 (Notable)
30 May 1955	Warsaw 2 NW, US	daily rain	51.3 mm (2.0 in)	18.3 mm (0.7 in)	38 years	34 of 100 (Routine)
30 May 1955	Agassiz Cda, CA	daily low max	8.3 C (46.9 F)	4.5 C (8.1 F)	61 years	33 of 100 (Routine)
30 May 1955	Gorlitz, DE	daily low min	1.9 C (35.4 F)	2.1 C (3.8 F)	70 years	33 of 100 (Routine)
30 May 1955	Cedar Lake, US	daily rain	45.5 mm (1.8 in)	20.1 mm (0.8 in)	45 years	33 of 100 (Routine)
30 May 1955	Makaweli 965, US	monthly high min	25.6 C (78.1 F)	1.2 C (2.2 F)	34 years	33 of 100 (Routine)
30 May 1955	Regensburg, DE	daily low min	3.2 C (37.8 F)	1.7 C (3.1 F)	70 years	32 of 100 (Routine)
30 May 1955	George School, US	daily rain	48.0 mm (1.9 in)	14.5 mm (0.6 in)	46 years	32 of 100 (Routine)
30 May 1955	Chilliwack, CA	daily low max	9.4 C (48.9 F)	3.4 C (6.1 F)	56 years	31 of 100 (Routine)
30 May 1955	Snoqualmie Pass, US	daily rain	30.2 mm (1.2 in)	18.3 mm (0.7 in)	26 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 1955

Records set or tied on this calendar date in each year from 1818 to 1955. 1955 had 377 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 1955-05-30: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	288
50 to 100	2
100 to 150	4
150 to 200	1
200 to 250	1
250 to 300	1