Weather Records on 4 May 1984

885 weather records were set or tied worldwide on 4 May 1984. Highest significance: Idomia, ZA.

Key Facts for 4 May 1984

On 4 May 1984, 885 weather records were set or tied at long-record stations worldwide.
352 were record highs and 125 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 28 monthly and 857 daily.
Idomia set a daily record precipitation of 37.0 mm (1.5 in) on 4 May 1984.
Across 163 earlier years (1795 to 2026) the same calendar date averaged 428 records.

Record Map

885 stations

885 station records on 4 May 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 May 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Idomia	South Africa	Record daily precipitation	37.0 mm (1.5 in)	59 of 100 (Notable)
Hanty-Mansijsk	Russia	Record daily precipitation	25.3 mm (1.0 in)	58 of 100 (Notable)
Maseru	Lesotho	Record daily precipitation	38.5 mm (1.5 in)	56 of 100 (Notable)
Pedrinhas	Brazil	Record daily precipitation	99.0 mm (3.9 in)	54 of 100 (Notable)
North End	South Africa	Record daily precipitation	38.3 mm (1.5 in)	54 of 100 (Notable)
Brandfort (Mag)	South Africa	Record daily precipitation	36.5 mm (1.4 in)	54 of 100 (Notable)
Inverness 3 SE	United States	Record daily precipitation	88.9 mm (3.5 in)	54 of 100 (Notable)
Mafeteng	Lesotho	Record daily precipitation	40.0 mm (1.6 in)	53 of 100 (Notable)
Bultfontein (Skl)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
Ipiau	Brazil	Record daily precipitation	48.2 mm (1.9 in)	50 of 100 (Notable)
Waterland	South Africa	Record daily precipitation	40.0 mm (1.6 in)	49 of 100 (Notable)
Dawson	United States	Record daily precipitation	127.5 mm (5.0 in)	49 of 100 (Notable)
Carrollton Lock 1	United States	Record daily precipitation	51.3 mm (2.0 in)	49 of 100 (Notable)
Mazelspoort Dam	South Africa	Record daily precipitation	31.2 mm (1.2 in)	48 of 100 (Notable)
Lumber City	United States	Record daily precipitation	104.1 mm (4.1 in)	48 of 100 (Notable)
Fredonia	United States	Record daily precipitation	28.2 mm (1.1 in)	48 of 100 (Notable)
Sheenspost	South Africa	Record daily precipitation	33.5 mm (1.3 in)	47 of 100 (Notable)
Grand Lake 6 SSW	United States	Record snow depth	73.7 cm (29.0 in)	47 of 100 (Notable)
Avon	United States	Record daily precipitation	29.5 mm (1.2 in)	46 of 100 (Notable)
Portageville 1N	United States	Record daily precipitation	30.2 mm (1.2 in)	46 of 100 (Notable)
Leadville Lake Co AP	United States	Record snow depth	43.2 cm (17.0 in)	46 of 100 (Notable)
Mt Morris 2W	United States	Record daily precipitation	33.5 mm (1.3 in)	44 of 100 (Notable)
Ladybrand (Bos)	South Africa	Record daily precipitation	41.0 mm (1.6 in)	43 of 100 (Notable)
Breckenridge	United States	Record daily snowfall	17.5 cm (6.9 in)	42 of 100 (Notable)
Telluride 4WNW	United States	Record snow depth	25.4 cm (10.0 in)	41 of 100 (Notable)
Bartow 1SE	United States	Record high minimum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Dawsonville	United States	Record daily precipitation	72.9 mm (2.9 in)	41 of 100 (Notable)
Newton	United States	Record daily precipitation	51.3 mm (2.0 in)	41 of 100 (Notable)
Hawley 1 E	United States	Record daily precipitation	48.5 mm (1.9 in)	41 of 100 (Notable)
Kresgeville 2 W	United States	Record daily precipitation	63.0 mm (2.5 in)	41 of 100 (Notable)
Bailey	United States	Record snow depth	38.1 cm (15.0 in)	40 of 100 (Notable)
Watertown AP	United States	Record daily precipitation	35.6 mm (1.4 in)	40 of 100 (Notable)
Convamore	South Africa	Record daily precipitation	37.0 mm (1.5 in)	39 of 100 (Notable)
Florisbad	South Africa	Record daily precipitation	32.0 mm (1.3 in)	39 of 100 (Notable)
Georgetown 2 E	United States	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Raymondville	United States	Record high maximum temperature	41.7 C (107.1 F)	39 of 100 (Notable)
Climax	United States	Record daily snowfall	9.1 cm (3.6 in)	38 of 100 (Notable)
Shelbyville 1 E	United States	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Hesperia 4 WNW	United States	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Oswego	United States	Record daily precipitation	40.4 mm (1.6 in)	38 of 100 (Notable)
Sodus 1W	United States	Record daily precipitation	36.8 mm (1.4 in)	38 of 100 (Notable)
Bay City Wtr Wks	United States	Record high maximum temperature	36.1 C (97.0 F)	38 of 100 (Notable)
Charlottesville 2W	United States	Record daily precipitation	46.7 mm (1.8 in)	38 of 100 (Notable)
Napa State Hospital	United States	Record high minimum temperature	13.9 C (57.0 F)	37 of 100 (Notable)
Durham	United States	Record daily precipitation	41.4 mm (1.6 in)	37 of 100 (Notable)
Bainbridge 2 E	United States	Record daily precipitation	31.8 mm (1.3 in)	37 of 100 (Notable)
Wooster Exp STN	United States	Record daily precipitation	42.9 mm (1.7 in)	37 of 100 (Notable)
Ladybrand (Skl)	South Africa	Record daily precipitation	42.2 mm (1.7 in)	36 of 100 (Notable)
Sussex 1 NW	United States	Record daily precipitation	58.9 mm (2.3 in)	36 of 100 (Notable)
Albion	United States	Record daily precipitation	36.6 mm (1.4 in)	36 of 100 (Notable)
Brockport	United States	Record daily precipitation	35.1 mm (1.4 in)	36 of 100 (Notable)
Paupack 1 WSW	United States	Record daily precipitation	45.5 mm (1.8 in)	36 of 100 (Notable)
Mission 4 W	United States	Record high maximum temperature	41.7 C (107.1 F)	36 of 100 (Notable)
Westminter Estate	South Africa	Record daily precipitation	50.0 mm (2.0 in)	35 of 100 (Notable)
South Lyndeboro	United States	Record daily precipitation	43.9 mm (1.7 in)	35 of 100 (Notable)
Oak Ridge Rsvr	United States	Record daily precipitation	50.3 mm (2.0 in)	35 of 100 (Notable)
Wiscoy 1 E	United States	Record daily precipitation	29.0 mm (1.1 in)	35 of 100 (Notable)
Itajuipe (Piranji)	Brazil	Record daily precipitation	76.6 mm (3.0 in)	34 of 100 (Routine)
Kommissiepoort	South Africa	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Danbury	United States	Record daily precipitation	36.8 mm (1.4 in)	34 of 100 (Routine)

Counts by Type and Timescale

885 records

Records set or tied on 4 May 1984 by type: Highest daily maximum 178, Lowest daily maximum 63, Highest daily minimum 174, Lowest daily minimum 62, Heaviest daily rainfall 385, Heaviest daily snowfall 3, Deepest snow cover 20.

Records on 4 May 1984 by type
Record type	Records
Highest daily maximum	178
Lowest daily maximum	63
Highest daily minimum	174
Lowest daily minimum	62
Heaviest daily rainfall	385
Heaviest daily snowfall	3
Deepest snow cover	20

Records on 4 May 1984 by timescale: all-time 0, monthly 28, daily 857.

How Much Records Were Beaten By

713 broken records

Margins by which the 713 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 712.0. Ties are not counted.

Top 20 by Significance

4 May 1984

Top 20 records on 4 May 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 May 1984	Idomia, ZA	daily rain	37.0 mm (1.5 in)	37.0 mm (1.5 in)	70 years	59 of 100 (Notable)
4 May 1984	Hanty-Mansijsk, RU	daily rain	25.3 mm (1.0 in)	18.7 mm (0.7 in)	31 years	58 of 100 (Notable)
4 May 1984	Maseru, LS	daily rain	38.5 mm (1.5 in)	14.9 mm (0.6 in)	88 years	56 of 100 (Notable)
4 May 1984	Pedrinhas, BR	monthly rain	99.0 mm (3.9 in)	50.5 mm (2.0 in)	6 years	54 of 100 (Notable)
4 May 1984	North End, ZA	daily rain	38.3 mm (1.5 in)	25.1 mm (1.0 in)	44 years	54 of 100 (Notable)
4 May 1984	Brandfort (Mag), ZA	daily rain	36.5 mm (1.4 in)	26.3 mm (1.0 in)	59 years	54 of 100 (Notable)
4 May 1984	Inverness 3 SE, US	daily rain	88.9 mm (3.5 in)	45.5 mm (1.8 in)	61 years	54 of 100 (Notable)
4 May 1984	Mafeteng, LS	daily rain	40.0 mm (1.6 in)	25.5 mm (1.0 in)	58 years	53 of 100 (Notable)
4 May 1984	Bultfontein (Skl), ZA	daily rain	30.0 mm (1.2 in)	18.3 mm (0.7 in)	77 years	51 of 100 (Notable)
4 May 1984	Ipiau, BR	daily rain	48.2 mm (1.9 in)	35.6 mm (1.4 in)	20 years	50 of 100 (Notable)
4 May 1984	Waterland, ZA	daily rain	40.0 mm (1.6 in)	23.7 mm (0.9 in)	44 years	49 of 100 (Notable)
4 May 1984	Dawson, US	daily rain	127.5 mm (5.0 in)	83.0 mm (3.3 in)	6 years	49 of 100 (Notable)
4 May 1984	Carrollton Lock 1, US	daily rain	51.3 mm (2.0 in)	27.9 mm (1.1 in)	57 years	49 of 100 (Notable)
4 May 1984	Mazelspoort Dam, ZA	daily rain	31.2 mm (1.2 in)	14.9 mm (0.6 in)	59 years	48 of 100 (Notable)
4 May 1984	Lumber City, US	daily rain	104.1 mm (4.1 in)	57.4 mm (2.3 in)	6 years	48 of 100 (Notable)
4 May 1984	Fredonia, US	daily rain	28.2 mm (1.1 in)	16.5 mm (0.6 in)	69 years	48 of 100 (Notable)
4 May 1984	Sheenspost, ZA	daily rain	33.5 mm (1.3 in)	20.8 mm (0.8 in)	44 years	47 of 100 (Notable)
4 May 1984	Grand Lake 6 SSW, US	daily snow depth	73.7 cm (29.0 in)	71.2 cm (28.0 in)	14 years	47 of 100 (Notable)
4 May 1984	Avon, US	daily rain	29.5 mm (1.2 in)	14.0 mm (0.6 in)	57 years	46 of 100 (Notable)
4 May 1984	Portageville 1N, US	daily rain	30.2 mm (1.2 in)	12.4 mm (0.5 in)	77 years	46 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 885 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 1984-05-04: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 100	704
100 to 200	5
200 to 300	2
300 to 400	1
400 to 500	0
500 to 600	0
600 to 700	0
700 to 800	1