Weather Records on 21 April 1998

876 weather records were set or tied worldwide on 21 April 1998. Highest significance: Idracowra, AU.

Key Facts for 21 April 1998

On 21 April 1998, 876 weather records were set or tied at long-record stations worldwide.
438 were record highs and 220 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 86 monthly and 788 daily.
Idracowra set a monthly record daily precipitation of 80.0 mm (3.1 in) on 21 April 1998.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 460 records.

Record Map

876 stations

876 station records on 21 April 1998 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1998: highest significance records shown on the map
Station	Country	Type	Value	Significance
Idracowra	Australia	Record daily precipitation	80.0 mm (3.1 in)	74 of 100 (Major)
Hamilton Station	Australia	Record daily precipitation	53.0 mm (2.1 in)	66 of 100 (Major)
Undoolya	Australia	Record daily precipitation	62.0 mm (2.4 in)	63 of 100 (Major)
Mount Leonard Station	Australia	Record daily precipitation	35.4 mm (1.4 in)	63 of 100 (Major)
Owen Springs	Australia	Record daily precipitation	55.0 mm (2.2 in)	60 of 100 (Major)
Erldunda	Australia	Record daily precipitation	56.0 mm (2.2 in)	59 of 100 (Notable)
Alice Springs Airport	Australia	Record daily precipitation	71.2 mm (2.8 in)	55 of 100 (Notable)
Curtin Springs	Australia	Record daily precipitation	48.5 mm (1.9 in)	54 of 100 (Notable)
Woodgreen	Australia	Record daily precipitation	92.0 mm (3.6 in)	54 of 100 (Notable)
Nockatunga Station	Australia	Record daily precipitation	36.0 mm (1.4 in)	54 of 100 (Notable)
Cobar (Tambua)	Australia	Record daily precipitation	37.2 mm (1.5 in)	54 of 100 (Notable)
Arltunga	Australia	Record daily precipitation	60.0 mm (2.4 in)	53 of 100 (Notable)
Tibooburra (Onepah)	Australia	Record daily precipitation	64.0 mm (2.5 in)	53 of 100 (Notable)
Wanaaring (Thurloo Downs)	Australia	Record daily precipitation	28.0 mm (1.1 in)	53 of 100 (Notable)
Sturt Creek	Australia	Record daily precipitation	70.0 mm (2.8 in)	52 of 100 (Notable)
Noolook Well (Noolook Forest R	Australia	Record daily precipitation	41.8 mm (1.6 in)	52 of 100 (Notable)
El Tejar	Mexico	Record daily precipitation	80.8 mm (3.2 in)	52 of 100 (Notable)
The Garden	Australia	Record daily precipitation	61.0 mm (2.4 in)	51 of 100 (Notable)
South Comongin	Australia	Record daily precipitation	39.0 mm (1.5 in)	51 of 100 (Notable)
Victory Downs	Australia	Record daily precipitation	45.0 mm (1.8 in)	50 of 100 (Notable)
Calton Hills Station	Australia	Record daily precipitation	27.0 mm (1.1 in)	50 of 100 (Notable)
Tallyabra	Australia	Record daily precipitation	60.0 mm (2.4 in)	50 of 100 (Notable)
Condobolin (Borambil Park)	Australia	Record daily precipitation	46.0 mm (1.8 in)	50 of 100 (Notable)
Todmorden	Australia	Record daily precipitation	45.2 mm (1.8 in)	49 of 100 (Notable)
Bond Springs Homestead	Australia	Record daily precipitation	59.0 mm (2.3 in)	48 of 100 (Notable)
Goyders Lagoon (Clifton Hills)	Australia	Record daily precipitation	26.0 mm (1.0 in)	47 of 100 (Notable)
Plaisance (Mauritiu	Mauritius	Record daily precipitation	170.9 mm (6.7 in)	47 of 100 (Notable)
Jervois	Australia	Record daily precipitation	42.8 mm (1.7 in)	46 of 100 (Notable)
Monkira	Australia	Record daily precipitation	28.4 mm (1.1 in)	46 of 100 (Notable)
Mount Marlow	Australia	Record daily precipitation	34.4 mm (1.4 in)	46 of 100 (Notable)
Alcoota	Australia	Record daily precipitation	67.0 mm (2.6 in)	45 of 100 (Notable)
Hamar-Daban	Russia	Record daily precipitation	47.4 mm (1.9 in)	44 of 100 (Notable)
Yambah	Australia	Record daily precipitation	83.0 mm (3.3 in)	43 of 100 (Notable)
Glen Helen	Australia	Record daily precipitation	54.0 mm (2.1 in)	43 of 100 (Notable)
New Crown	Australia	Record daily precipitation	72.0 mm (2.8 in)	43 of 100 (Notable)
Adelong Post Office	Australia	Record daily precipitation	59.0 mm (2.3 in)	43 of 100 (Notable)
Avon Park 2 W	United States	Record daily precipitation	50.8 mm (2.0 in)	43 of 100 (Notable)
Port Townsend	United States	Record high minimum temperature	9.4 C (48.9 F)	42 of 100 (Notable)
Sandringham	Australia	Record daily precipitation	36.0 mm (1.4 in)	41 of 100 (Notable)
Moble	Australia	Record daily precipitation	58.0 mm (2.3 in)	41 of 100 (Notable)
Zmeinogorsk	Russia	Record low minimum temperature	-14.0 C (6.8 F)	41 of 100 (Notable)
Aileron	Australia	Record daily precipitation	59.0 mm (2.3 in)	40 of 100 (Notable)
Hillston Airport	Australia	Record daily precipitation	68.2 mm (2.7 in)	40 of 100 (Notable)
Ambalindum	Australia	Record daily precipitation	61.0 mm (2.4 in)	39 of 100 (Notable)
Yarrangobilly Caves	Australia	Record daily precipitation	28.2 mm (1.1 in)	39 of 100 (Notable)
Yuendumu	Australia	Record daily precipitation	51.5 mm (2.0 in)	38 of 100 (Notable)
Hamilton Downs	Australia	Record daily precipitation	58.0 mm (2.3 in)	38 of 100 (Notable)
Macumba	Australia	Record daily precipitation	38.0 mm (1.5 in)	38 of 100 (Notable)
Wakefield	Australia	Record daily precipitation	85.0 mm (3.3 in)	38 of 100 (Notable)
Durham Downs	Australia	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Zharkent	Kazakhstan	Record low maximum temperature	4.9 C (40.8 F)	37 of 100 (Notable)
Junction 4SSW	United States	Record low minimum temperature	-0.6 C (30.9 F)	37 of 100 (Notable)
Auvergne	Australia	Record daily precipitation	50.0 mm (2.0 in)	36 of 100 (Notable)
Zolotoj	Russia	Record high maximum temperature	21.3 C (70.3 F)	36 of 100 (Notable)
Pasadena	United States	Record high maximum temperature	34.4 C (93.9 F)	36 of 100 (Notable)
Ruby Plains	Australia	Record daily precipitation	28.0 mm (1.1 in)	35 of 100 (Notable)
Cunnamulla Post Office	Australia	Record daily precipitation	39.3 mm (1.5 in)	35 of 100 (Notable)
Nuwara Eliya	Sri Lanka	Record high maximum temperature	26.3 C (79.3 F)	35 of 100 (Notable)
Ouesso	Congo (Brazzaville)	Record high maximum temperature	43.5 C (110.3 F)	35 of 100 (Notable)
Mount Cavenagh	Australia	Record daily precipitation	50.0 mm (2.0 in)	34 of 100 (Routine)

Counts by Type and Timescale

876 records

Records set or tied on 21 April 1998 by type: Highest daily maximum 214, Lowest daily maximum 111, Highest daily minimum 224, Lowest daily minimum 109, Heaviest daily rainfall 215, Deepest snow cover 3.

Records on 21 April 1998 by type
Record type	Records
Highest daily maximum	214
Lowest daily maximum	111
Highest daily minimum	224
Lowest daily minimum	109
Heaviest daily rainfall	215
Heaviest daily snowfall	0
Deepest snow cover	3

Records on 21 April 1998 by timescale: all-time 2, monthly 86, daily 788.

How Much Records Were Beaten By

734 broken records

Margins by which the 734 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 126.7. Ties are not counted.

Top 20 by Significance

21 April 1998

Top 20 records on 21 April 1998 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1998	Idracowra, AU	monthly rain	80.0 mm (3.1 in)	27.9 mm (1.1 in)	107 years	74 of 100 (Major)
21 April 1998	Hamilton Station, AU	daily rain	53.0 mm (2.1 in)	53.0 mm (2.1 in)	67 years	66 of 100 (Major)
21 April 1998	Undoolya, AU	monthly rain	62.0 mm (2.4 in)	13.7 mm (0.5 in)	95 years	63 of 100 (Major)
21 April 1998	Mount Leonard Station, AU	daily rain	35.4 mm (1.4 in)	35.4 mm (1.4 in)	72 years	63 of 100 (Major)
21 April 1998	Owen Springs, AU	monthly rain	55.0 mm (2.2 in)	25.6 mm (1.0 in)	18 years	60 of 100 (Major)
21 April 1998	Erldunda, AU	daily rain	56.0 mm (2.2 in)	56.0 mm (2.2 in)	64 years	59 of 100 (Notable)
21 April 1998	Alice Springs Airport, AU	monthly rain	71.2 mm (2.8 in)	26.8 mm (1.1 in)	24 years	55 of 100 (Notable)
21 April 1998	Curtin Springs, AU	daily rain	48.5 mm (1.9 in)	48.5 mm (1.9 in)	44 years	54 of 100 (Notable)
21 April 1998	Woodgreen, AU	monthly rain	92.0 mm (3.6 in)	45.0 mm (1.8 in)	14 years	54 of 100 (Notable)
21 April 1998	Nockatunga Station, AU	daily rain	36.0 mm (1.4 in)	34.7 mm (1.4 in)	33 years	54 of 100 (Notable)
21 April 1998	Cobar (Tambua), AU	daily rain	37.2 mm (1.5 in)	18.1 mm (0.7 in)	101 years	54 of 100 (Notable)
21 April 1998	Arltunga, AU	monthly rain	60.0 mm (2.4 in)	6.7 mm (0.26 in)	95 years	53 of 100 (Notable)
21 April 1998	Tibooburra (Onepah), AU	monthly rain	64.0 mm (2.5 in)	12.4 mm (0.5 in)	74 years	53 of 100 (Notable)
21 April 1998	Wanaaring (Thurloo Downs), AU	daily rain	28.0 mm (1.1 in)	22.9 mm (0.9 in)	80 years	53 of 100 (Notable)
21 April 1998	Sturt Creek, AU	daily rain	70.0 mm (2.8 in)	62.4 mm (2.5 in)	36 years	52 of 100 (Notable)
21 April 1998	Noolook Well (Noolook Forest R, AU	daily rain	41.8 mm (1.6 in)	28.6 mm (1.1 in)	29 years	52 of 100 (Notable)
21 April 1998	El Tejar, MX	monthly rain	80.8 mm (3.2 in)	35.8 mm (1.4 in)	18 years	52 of 100 (Notable)
21 April 1998	The Garden, AU	daily rain	61.0 mm (2.4 in)	50.1 mm (2.0 in)	28 years	51 of 100 (Notable)
21 April 1998	South Comongin, AU	daily rain	39.0 mm (1.5 in)	22.0 mm (0.9 in)	96 years	51 of 100 (Notable)
21 April 1998	Victory Downs, AU	daily rain	45.0 mm (1.8 in)	43.8 mm (1.7 in)	17 years	50 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 1998

Records set or tied on this calendar date in each year from 1793 to 1998. 1998 had 876 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	886
2024	754
2025	506
2026	853

Download the Data

Data for records on 1998-04-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	680
20 to 40	36
40 to 60	14
60 to 80	2
80 to 100	0
100 to 120	1
120 to 140	1