Weather Records on 1 May 1984

640 weather records were set or tied worldwide on 1 May 1984. Highest significance: Grand Lake 6 SSW, US.

Key Facts for 1 May 1984

On 1 May 1984, 640 weather records were set or tied at long-record stations worldwide.
177 were record highs and 175 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 74 monthly and 566 daily.
Grand Lake 6 SSW set a monthly record snow depth of 76.2 cm (30.0 in) on 1 May 1984.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 441 records.

Record Map

640 stations

640 station records on 1 May 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 May 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Grand Lake 6 SSW	United States	Record snow depth	76.2 cm (30.0 in)	57 of 100 (Notable)
Leliekloof	South Africa	Record daily precipitation	56.6 mm (2.2 in)	52 of 100 (Notable)
Bailey	United States	Record snow depth	61.0 cm (24.0 in)	51 of 100 (Notable)
Faribault	United States	Record snow depth	10.2 cm (4.0 in)	51 of 100 (Notable)
Wentworth 2.5 WNW	United States	Record snow depth	15.2 cm (6.0 in)	48 of 100 (Notable)
Bordeaux-Merignac	France	Record daily precipitation	29.5 mm (1.2 in)	47 of 100 (Notable)
Kenmare 1 WSW	United States	Record snow depth	25.4 cm (10.0 in)	47 of 100 (Notable)
Conconully	United States	Record daily precipitation	27.7 mm (1.1 in)	45 of 100 (Notable)
Lake City Exp Farm	United States	Record daily snowfall	7.6 cm (3.0 in)	43 of 100 (Notable)
Shamakhy	Azerbaijan	Record daily precipitation	51.9 mm (2.0 in)	42 of 100 (Notable)
Juchitan de Zaragoza	Mexico	Record low minimum temperature	15.6 C (60.1 F)	42 of 100 (Notable)
Kansai Internationa	Japan	Record daily precipitation	72.0 mm (2.8 in)	41 of 100 (Notable)
Bloomfield	United States	Record snow depth	15.2 cm (6.0 in)	41 of 100 (Notable)
Bayfield 6 N	United States	Record snow depth	30.5 cm (12.0 in)	41 of 100 (Notable)
Sumoto	Japan	Record daily precipitation	85.0 mm (3.3 in)	40 of 100 (Notable)
Tuzantla (Smn)	Mexico	Record low maximum temperature	29.4 C (84.9 F)	40 of 100 (Notable)
San Haven	United States	Record snow depth	27.9 cm (11.0 in)	40 of 100 (Notable)
Harding 3 SE	United States	Record snow depth	48.3 cm (19.0 in)	40 of 100 (Notable)
Mogumber Farm	Australia	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Kenton	United States	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Medford	United States	Record low maximum temperature	1.1 C (34.0 F)	39 of 100 (Notable)
Mellen 4 NE	United States	Record daily snowfall	8.9 cm (3.5 in)	39 of 100 (Notable)
Echeta 2 NW	United States	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Tsuruga	Japan	Record daily precipitation	67.0 mm (2.6 in)	38 of 100 (Notable)
Oestersund-Froesoen	Sweden	Record high maximum temperature	20.2 C (68.4 F)	38 of 100 (Notable)
Dumont	United States	Record snow depth	15.2 cm (6.0 in)	38 of 100 (Notable)
Max	United States	Record snow depth	20.3 cm (8.0 in)	37 of 100 (Notable)
Telluride 4WNW	United States	Record snow depth	40.6 cm (16.0 in)	36 of 100 (Notable)
Emmetsburg	United States	Record snow depth	12.7 cm (5.0 in)	36 of 100 (Notable)
O'Neill	United States	Record snow depth	15.2 cm (6.0 in)	36 of 100 (Notable)
Port Wing	United States	Record snow depth	27.9 cm (11.0 in)	36 of 100 (Notable)
Roi Et	Thailand	Record daily precipitation	109.3 mm (4.3 in)	35 of 100 (Notable)
Bergland Dam	United States	Record daily snowfall	29.5 cm (11.6 in)	35 of 100 (Notable)
Brule Rs	United States	Record snow depth	22.9 cm (9.0 in)	35 of 100 (Notable)
Herford	Germany	Record daily precipitation	25.1 mm (1.0 in)	34 of 100 (Routine)
Old Forge	United States	Record daily snowfall	5.1 cm (2.0 in)	34 of 100 (Routine)
Powers Lake 1N	United States	Record snow depth	17.8 cm (7.0 in)	34 of 100 (Routine)
El Dorado Goodwin Fld	United States	Record low maximum temperature	16.7 C (62.1 F)	34 of 100 (Routine)
Gifu	Japan	Record daily precipitation	85.5 mm (3.4 in)	33 of 100 (Routine)
Todos Santos (Dge)	Mexico	Record low minimum temperature	5.6 C (42.1 F)	33 of 100 (Routine)
Mora	United States	Record low minimum temperature	-6.7 C (19.9 F)	33 of 100 (Routine)
Baldwin	United States	Record snow depth	10.2 cm (4.0 in)	33 of 100 (Routine)
Mellen 4 NE	United States	Record snow depth	35.6 cm (14.0 in)	33 of 100 (Routine)
Manati 2 E	Puerto Rico [United States]	Record high minimum temperature	23.3 C (73.9 F)	32 of 100 (Routine)
Trout Lake	United States	Record snow depth	157.5 cm (62.0 in)	32 of 100 (Routine)
Ironwood	United States	Record snow depth	33.0 cm (13.0 in)	32 of 100 (Routine)
Red Lodge	United States	Record snow depth	76.2 cm (30.0 in)	32 of 100 (Routine)
Culbertson	United States	Record low minimum temperature	-10.0 C (14.0 F)	31 of 100 (Routine)
Kurdamir	Azerbaijan	Record daily precipitation	31.2 mm (1.2 in)	30 of 100 (Routine)
Laoag	Philippines	Record low maximum temperature	27.8 C (82.0 F)	30 of 100 (Routine)
Sulak	Russia	Record low maximum temperature	-5.1 C (22.8 F)	30 of 100 (Routine)
Ouray	United States	Record snow depth	15.2 cm (6.0 in)	30 of 100 (Routine)
Wellfleet	United States	Record snow depth	10.2 cm (4.0 in)	30 of 100 (Routine)
Bowman	United States	Record snow depth	20.3 cm (8.0 in)	30 of 100 (Routine)
Alva 5 ESE	United States	Record snow depth	63.5 cm (25.0 in)	30 of 100 (Routine)
Ljusnedal	Sweden	Record high maximum temperature	17.1 C (62.8 F)	29 of 100 (Routine)
Bergland Dam	United States	Record snow depth	38.1 cm (15.0 in)	29 of 100 (Routine)
Kenton	United States	Record snow depth	20.3 cm (8.0 in)	29 of 100 (Routine)
Stanley 3 NNW	United States	Record snow depth	15.2 cm (6.0 in)	29 of 100 (Routine)
Ardmore	United States	Record daily precipitation	37.6 mm (1.5 in)	29 of 100 (Routine)

Counts by Type and Timescale

640 records

Records set or tied on 1 May 1984 by type: Highest daily maximum 110, Lowest daily maximum 106, Highest daily minimum 67, Lowest daily minimum 69, Heaviest daily rainfall 166, Heaviest daily snowfall 38, Deepest snow cover 84.

Records on 1 May 1984 by type
Record type	Records
Highest daily maximum	110
Lowest daily maximum	106
Highest daily minimum	67
Lowest daily minimum	69
Heaviest daily rainfall	166
Heaviest daily snowfall	38
Deepest snow cover	84

Records on 1 May 1984 by timescale: all-time 0, monthly 74, daily 566.

How Much Records Were Beaten By

510 broken records

Margins by which the 510 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 483.0. Ties are not counted.

Top 20 by Significance

1 May 1984

Top 20 records on 1 May 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 1984	Grand Lake 6 SSW, US	monthly snow depth	76.2 cm (30.0 in)	48.3 cm (19.0 in)	14 years	57 of 100 (Notable)
1 May 1984	Leliekloof, ZA	daily rain	56.6 mm (2.2 in)	36.6 mm (1.4 in)	30 years	52 of 100 (Notable)
1 May 1984	Bailey, US	monthly snow depth	61.0 cm (24.0 in)	25.4 cm (10.0 in)	26 years	51 of 100 (Notable)
1 May 1984	Faribault, US	monthly snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	76 years	51 of 100 (Notable)
1 May 1984	Wentworth 2.5 WNW, US	monthly snow depth	15.2 cm (6.0 in)	7.6 cm (3.0 in)	76 years	48 of 100 (Notable)
1 May 1984	Bordeaux-Merignac, FR	daily rain	29.5 mm (1.2 in)	11.5 mm (0.5 in)	70 years	47 of 100 (Notable)
1 May 1984	Kenmare 1 WSW, US	monthly snow depth	25.4 cm (10.0 in)	20.3 cm (8.0 in)	40 years	47 of 100 (Notable)
1 May 1984	Conconully, US	daily rain	27.7 mm (1.1 in)	14.7 mm (0.6 in)	42 years	45 of 100 (Notable)
1 May 1984	Lake City Exp Farm, US	daily snowfall	7.6 cm (3.0 in)	6.3 cm (2.5 in)	76 years	43 of 100 (Notable)
1 May 1984	Shamakhy, AZ	daily rain	51.9 mm (2.0 in)	27.7 mm (1.1 in)	20 years	42 of 100 (Notable)
1 May 1984	Juchitan de Zaragoza, MX	monthly low min	15.6 C (60.1 F)	2.7 C (4.9 F)	43 years	42 of 100 (Notable)
1 May 1984	Kansai Internationa, JP	daily rain	72.0 mm (2.8 in)	43.4 mm (1.7 in)	28 years	41 of 100 (Notable)
1 May 1984	Bloomfield, US	monthly snow depth	15.2 cm (6.0 in)	12.7 cm (5.0 in)	36 years	41 of 100 (Notable)
1 May 1984	Bayfield 6 N, US	monthly snow depth	30.5 cm (12.0 in)	15.3 cm (6.0 in)	29 years	41 of 100 (Notable)
1 May 1984	Sumoto, JP	daily rain	85.0 mm (3.3 in)	46.2 mm (1.8 in)	28 years	40 of 100 (Notable)
1 May 1984	Tuzantla (Smn), MX	daily low max	29.4 C (84.9 F)	5.6 C (10.1 F)	43 years	40 of 100 (Notable)
1 May 1984	San Haven, US	monthly snow depth	27.9 cm (11.0 in)	22.8 cm (9.0 in)	18 years	40 of 100 (Notable)
1 May 1984	Harding 3 SE, US	monthly snow depth	48.3 cm (19.0 in)	17.8 cm (7.0 in)	17 years	40 of 100 (Notable)
1 May 1984	Mogumber Farm, AU	daily rain	33.0 mm (1.3 in)	23.3 mm (0.9 in)	19 years	39 of 100 (Notable)
1 May 1984	Kenton, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	41 years	39 of 100 (Notable)

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 1984

Records set or tied on this calendar date in each year from 1795 to 1984. 1984 had 640 records.

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

Records on 05-01 in each year
Year	Records
1795	1
1802	1
1804	1
1814	1
1818	1
1835	1
1836	1
1840	1
1846	2
1847	1
1850	1
1851	1
1857	1
1860	1
1861	1
1864	2
1865	1
1868	2
1872	1
1875	4
1878	2
1879	2
1880	3
1881	2
1884	1
1885	1
1886	2
1887	2
1888	2
1889	3
1890	2
1891	5
1892	6
1893	2
1894	5
1896	1
1897	4
1898	1
1899	8
1900	1
1901	5
1902	7
1903	9
1904	9
1905	13
1906	12
1907	31
1908	20
1909	49
1910	13
1911	22
1912	18
1913	54
1914	23
1915	27
1916	27
1917	37
1918	34
1919	150
1920	186
1921	41
1922	92
1923	64
1924	63
1925	118
1926	500
1927	125
1928	190
1929	142
1930	263
1931	537
1932	220
1933	706
1934	305
1935	276
1936	368
1937	218
1938	304
1939	227
1940	731
1941	333
1942	1,036
1943	526
1944	229
1945	350
1946	415
1947	655
1948	774
1949	405
1950	439
1951	894
1952	557
1953	917
1954	1,506
1955	772
1956	1,106
1957	359
1958	448
1959	764
1960	737
1961	588
1962	615
1963	704
1964	312
1965	360
1966	707
1967	948
1968	426
1969	429
1970	1,075
1971	444
1972	562
1973	841
1974	589
1975	286
1976	673
1977	545
1978	1,202
1979	612
1980	507
1981	1,265
1982	508
1983	1,423
1984	640
1985	789
1986	512
1987	1,098
1988	1,058
1989	949
1990	922
1991	633
1992	1,201
1993	1,101
1994	1,210
1995	1,365
1996	1,439
1997	804
1998	951
1999	932
2000	809
2001	1,106
2002	1,221
2003	964
2004	887
2005	1,320
2006	734
2007	857
2008	979
2009	679
2010	1,151
2011	716
2012	796
2013	976
2014	941
2015	550
2016	844
2017	1,163
2018	519
2019	788
2020	1,099
2021	834
2022	319
2023	912
2024	458
2025	430
2026	623

Download the Data

Data for records on 1984-05-01: 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).

Histogram of margins by which records were beaten on 1 May 1984
Margin	Records
0 to 100	483
100 to 200	23
200 to 300	3
300 to 400	0
400 to 500	1