Weather Records on 21 April 1984

1,231 weather records were set or tied worldwide on 21 April 1984. Highest significance: Coranderrk Badger Weir, AU.

Key Facts for 21 April 1984

On 21 April 1984, 1,231 weather records were set or tied at long-record stations worldwide.
246 were record highs and 285 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 65 monthly and 1,160 daily.
Coranderrk Badger Weir set a daily record precipitation of 67.8 mm (2.7 in) on 21 April 1984.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 457 records.

Record Map

1,231 stations

1,231 station records on 21 April 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Coranderrk Badger Weir	Australia	Record daily precipitation	67.8 mm (2.7 in)	76 of 100 (Major)
Loup City	United States	Record daily precipitation	61.0 mm (2.4 in)	73 of 100 (Major)
Waterdale	United States	Record daily snowfall	45.7 cm (18.0 in)	72 of 100 (Major)
Maryland	Australia	Record daily precipitation	106.6 mm (4.2 in)	71 of 100 (Major)
Fleming	United States	Record daily snowfall	50.8 cm (20.0 in)	71 of 100 (Major)
Dresden	United States	Record daily snowfall	15.2 cm (6.0 in)	70 of 100 (Major)
Lincoln UNIV Pwr Plt	United States	Record daily precipitation	44.7 mm (1.8 in)	67 of 100 (Major)
Stanthorpe Leslie Parade	Australia	Record daily precipitation	80.0 mm (3.1 in)	65 of 100 (Major)
Flagler 1S	United States	Record daily snowfall	20.3 cm (8.0 in)	65 of 100 (Major)
Olney 2S	United States	Record daily precipitation	79.2 mm (3.1 in)	65 of 100 (Major)
Dresden	United States	Record daily precipitation	56.9 mm (2.2 in)	65 of 100 (Major)
Kemmerer 2N	United States	Record snow depth	17.8 cm (7.0 in)	65 of 100 (Major)
Casey	United States	Record daily precipitation	72.1 mm (2.8 in)	63 of 100 (Major)
Hoxie	United States	Record daily precipitation	56.9 mm (2.2 in)	63 of 100 (Major)
Jindivick	Australia	Record daily precipitation	67.6 mm (2.7 in)	61 of 100 (Major)
Warburton	Australia	Record daily precipitation	68.0 mm (2.7 in)	61 of 100 (Major)
Leongatha Sth Gippsland Water	Australia	Record daily precipitation	65.6 mm (2.6 in)	60 of 100 (Major)
Wakeeney	United States	Record daily precipitation	55.1 mm (2.2 in)	60 of 100 (Major)
Erica	Australia	Record daily precipitation	109.4 mm (4.3 in)	59 of 100 (Notable)
Archer	United States	Record daily snowfall	25.4 cm (10.0 in)	59 of 100 (Notable)
Beau Maison	Australia	Record daily precipitation	55.4 mm (2.2 in)	58 of 100 (Notable)
Clydebank	Australia	Record daily precipitation	100.0 mm (3.9 in)	58 of 100 (Notable)
Maffra Forestry Office	Australia	Record daily precipitation	103.0 mm (4.1 in)	58 of 100 (Notable)
Haswell	United States	Record daily snowfall	17.8 cm (7.0 in)	58 of 100 (Notable)
Wilsonville	United States	Record daily precipitation	64.5 mm (2.5 in)	58 of 100 (Notable)
Madalya	Australia	Record daily precipitation	103.9 mm (4.1 in)	57 of 100 (Notable)
Darriman (Tarralangi)	Australia	Record daily precipitation	84.0 mm (3.3 in)	57 of 100 (Notable)
Big Springs	United States	Record daily snowfall	20.3 cm (8.0 in)	57 of 100 (Notable)
Dalveen	Australia	Record daily precipitation	61.0 mm (2.4 in)	56 of 100 (Notable)
Glenmaggie Weir	Australia	Record daily precipitation	132.0 mm (5.2 in)	56 of 100 (Notable)
Valencia Creek	Australia	Record daily precipitation	125.0 mm (4.9 in)	56 of 100 (Notable)
Alberton Post Office	Australia	Record daily precipitation	75.0 mm (3.0 in)	55 of 100 (Notable)
Beaver City	United States	Record daily precipitation	59.7 mm (2.4 in)	55 of 100 (Notable)
Eustis 2 NW	United States	Record daily snowfall	17.8 cm (7.0 in)	55 of 100 (Notable)
Kimball 2NE	United States	Record snow depth	12.7 cm (5.0 in)	55 of 100 (Notable)
Wilsonville	United States	Record daily snowfall	10.2 cm (4.0 in)	55 of 100 (Notable)
Garfield	Australia	Record daily precipitation	62.0 mm (2.4 in)	54 of 100 (Notable)
Windsor	United States	Record daily snowfall	19.1 cm (7.5 in)	54 of 100 (Notable)
Yuma	United States	Record daily snowfall	15.2 cm (6.0 in)	54 of 100 (Notable)
Carawatha	Australia	Record daily precipitation	56.4 mm (2.2 in)	53 of 100 (Notable)
Julesburg	United States	Record daily snowfall	15.2 cm (6.0 in)	53 of 100 (Notable)
Wellfleet	United States	Record daily precipitation	47.0 mm (1.9 in)	53 of 100 (Notable)
Limon	United States	Record snow depth	17.8 cm (7.0 in)	53 of 100 (Notable)
Millmerran Post Office	Australia	Record daily precipitation	58.0 mm (2.3 in)	52 of 100 (Notable)
Western Creek	Australia	Record daily precipitation	55.0 mm (2.2 in)	52 of 100 (Notable)
Belah Park	Australia	Record daily precipitation	44.2 mm (1.7 in)	52 of 100 (Notable)
Cheshunt	Australia	Record daily precipitation	65.6 mm (2.6 in)	52 of 100 (Notable)
Tarwin Lower (Riverside)	Australia	Record daily precipitation	36.8 mm (1.4 in)	52 of 100 (Notable)
Damar	United States	Record daily precipitation	56.6 mm (2.2 in)	52 of 100 (Notable)
Saint Peter 4ENE	United States	Record daily precipitation	53.8 mm (2.1 in)	52 of 100 (Notable)
Webster Dam	United States	Record daily precipitation	51.1 mm (2.0 in)	52 of 100 (Notable)
Winona	United States	Record daily snowfall	7.6 cm (3.0 in)	52 of 100 (Notable)
Atlanta 2 WNW	United States	Record daily precipitation	51.6 mm (2.0 in)	52 of 100 (Notable)
Burwell 2WSW	United States	Record daily precipitation	56.1 mm (2.2 in)	52 of 100 (Notable)
Greeley	United States	Record daily precipitation	57.2 mm (2.3 in)	52 of 100 (Notable)
Loup City 6 NNE	United States	Record daily precipitation	55.1 mm (2.2 in)	52 of 100 (Notable)
Homer AP	United States	Record daily snowfall	11.9 cm (4.7 in)	52 of 100 (Notable)
Carbean	Australia	Record daily precipitation	72.6 mm (2.9 in)	51 of 100 (Notable)
Turallin	Australia	Record daily precipitation	59.0 mm (2.3 in)	51 of 100 (Notable)
Jindivick North	Australia	Record daily precipitation	71.8 mm (2.8 in)	51 of 100 (Notable)

Counts by Type and Timescale

1,231 records

Records set or tied on 21 April 1984 by type: Highest daily maximum 142, Lowest daily maximum 208, Highest daily minimum 104, Lowest daily minimum 77, Heaviest daily rainfall 552, Heaviest daily snowfall 84, Deepest snow cover 64.

Records on 21 April 1984 by type
Record type	Records
Highest daily maximum	142
Lowest daily maximum	208
Highest daily minimum	104
Lowest daily minimum	77
Heaviest daily rainfall	552
Heaviest daily snowfall	84
Deepest snow cover	64

Records on 21 April 1984 by timescale: all-time 6, monthly 65, daily 1,160.

How Much Records Were Beaten By

1,069 broken records

Margins by which the 1,069 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 457.0. Ties are not counted.

Top 20 by Significance

21 April 1984

Top 20 records on 21 April 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1984	Coranderrk Badger Weir, AU	daily rain	67.8 mm (2.7 in)	52.1 mm (2.1 in)	87 years	76 of 100 (Major)
21 April 1984	Loup City, US	daily rain	61.0 mm (2.4 in)	43.2 mm (1.7 in)	80 years	73 of 100 (Major)
21 April 1984	Waterdale, US	daily snowfall	45.7 cm (18.0 in)	45.7 cm (18.0 in)	82 years	72 of 100 (Major)
21 April 1984	Maryland, AU	monthly rain	106.6 mm (4.2 in)	22.3 mm (0.9 in)	115 years	71 of 100 (Major)
21 April 1984	Fleming, US	all-time snowfall	50.8 cm (20.0 in)	10.2 cm (4.0 in)	87 years	71 of 100 (Major)
21 April 1984	Dresden, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	88 years	70 of 100 (Major)
21 April 1984	Lincoln UNIV Pwr Plt, US	daily rain	44.7 mm (1.8 in)	28.7 mm (1.1 in)	86 years	67 of 100 (Major)
21 April 1984	Stanthorpe Leslie Parade, AU	daily rain	80.0 mm (3.1 in)	33.3 mm (1.3 in)	83 years	65 of 100 (Major)
21 April 1984	Flagler 1S, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	64 years	65 of 100 (Major)
21 April 1984	Olney 2S, US	daily rain	79.2 mm (3.1 in)	51.8 mm (2.0 in)	56 years	65 of 100 (Major)
21 April 1984	Dresden, US	daily rain	56.9 mm (2.2 in)	41.7 mm (1.6 in)	55 years	65 of 100 (Major)
21 April 1984	Kemmerer 2N, US	daily snow depth	17.8 cm (7.0 in)	17.8 cm (7.0 in)	82 years	65 of 100 (Major)
21 April 1984	Casey, US	daily rain	72.1 mm (2.8 in)	48.5 mm (1.9 in)	47 years	63 of 100 (Major)
21 April 1984	Hoxie, US	daily rain	56.9 mm (2.2 in)	39.1 mm (1.5 in)	51 years	63 of 100 (Major)
21 April 1984	Jindivick, AU	daily rain	67.6 mm (2.7 in)	38.4 mm (1.5 in)	49 years	61 of 100 (Major)
21 April 1984	Warburton, AU	daily rain	68.0 mm (2.7 in)	42.6 mm (1.7 in)	50 years	61 of 100 (Major)
21 April 1984	Leongatha Sth Gippsland Water, AU	daily rain	65.6 mm (2.6 in)	33.6 mm (1.3 in)	37 years	60 of 100 (Major)
21 April 1984	Wakeeney, US	daily rain	55.1 mm (2.2 in)	35.5 mm (1.4 in)	51 years	60 of 100 (Major)
21 April 1984	Erica, AU	monthly rain	109.4 mm (4.3 in)	40.6 mm (1.6 in)	15 years	59 of 100 (Notable)
21 April 1984	Archer, US	daily snowfall	25.4 cm (10.0 in)	24.1 cm (9.5 in)	40 years	59 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

1793 to 1984

Records set or tied on this calendar date in each year from 1793 to 1984. 1984 had 1,231 records.

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

Records on 04-21 in each year
Year	Records
1793	1
1814	1
1820	1
1838	1
1849	2
1851	1
1852	3
1854	1
1858	3
1861	2
1865	3
1866	1
1868	1
1870	1
1875	4
1876	2
1877	1
1879	3
1880	1
1881	1
1882	1
1884	1
1885	2
1888	1
1890	1
1891	1
1892	1
1893	2
1894	4
1895	1
1897	1
1898	2
1899	2
1900	7
1901	17
1902	7
1903	3
1904	10
1905	18
1906	5
1907	17
1908	25
1909	20
1910	33
1911	9
1912	22
1913	14
1914	220
1915	24
1916	64
1917	48
1918	84
1919	31
1920	85
1921	59
1922	70
1923	223
1924	119
1925	295
1926	148
1927	284
1928	269
1929	193
1930	127
1931	358
1932	304
1933	201
1934	497
1935	266
1936	277
1937	416
1938	295
1939	110
1940	462
1941	306
1942	285
1943	481
1944	261
1945	367
1946	448
1947	459
1948	365
1949	448
1950	529
1951	884
1952	665
1953	640
1954	527
1955	607
1956	497
1957	824
1958	329
1959	505
1960	889
1961	647
1962	319
1963	778
1964	1,125
1965	658
1966	756
1967	903
1968	655
1969	388
1970	728
1971	546
1972	593
1973	1,163
1974	528
1975	360
1976	452
1977	854
1978	735
1979	449
1980	1,934
1981	944
1982	1,075
1983	1,366
1984	1,231
1985	1,245
1986	977
1987	1,290
1988	898
1989	1,557
1990	1,463
1991	1,291
1992	1,763
1993	847
1994	859
1995	1,476
1996	788
1997	964
1998	876
1999	752
2000	921
2001	967
2002	1,312
2003	607
2004	586
2005	693
2006	761
2007	480
2008	1,327
2009	983
2010	805
2011	1,053
2012	687
2013	1,015
2014	393
2015	621
2016	587
2017	797
2018	862
2019	731
2020	397
2021	1,608
2022	433
2023	887
2024	754
2025	506
2026	853

Download the Data

Data for records on 1984-04-21: 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 2026-10-15 (15 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 21 April 1984
Margin	Records
0 to 100	1,014
100 to 200	39
200 to 300	13
300 to 400	1
400 to 500	2