Weather Records on 20 April 1980

1,539 weather records were set or tied worldwide on 20 April 1980. Highest significance: Port Lincoln, AU.

Key Facts for 20 April 1980

On 20 April 1980, 1,539 weather records were set or tied at long-record stations worldwide.
931 were record highs and 135 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 162 monthly and 1,376 daily.
Port Lincoln set a daily record precipitation of 46.0 mm (1.8 in) on 20 April 1980.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 455 records.

Record Map

1,539 stations

1,539 station records on 20 April 1980 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1980: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Lincoln	Australia	Record daily precipitation	46.0 mm (1.8 in)	71 of 100 (Major)
Indee	Australia	Record daily precipitation	65.5 mm (2.6 in)	62 of 100 (Major)
Onslow	Australia	Record daily precipitation	76.3 mm (3.0 in)	62 of 100 (Major)
Ningaloo	Australia	Record daily precipitation	57.0 mm (2.2 in)	61 of 100 (Major)
Innamincka Station	Australia	Record daily precipitation	25.4 mm (1.0 in)	61 of 100 (Major)
Wilcannia (Reid St)	Australia	Record daily precipitation	46.0 mm (1.8 in)	61 of 100 (Major)
Winderie	Australia	Record daily precipitation	38.0 mm (1.5 in)	60 of 100 (Major)
Charam	Australia	Record daily precipitation	39.0 mm (1.5 in)	60 of 100 (Major)
Bryah	Australia	Record daily precipitation	42.0 mm (1.7 in)	59 of 100 (Notable)
Warramboo	Australia	Record daily precipitation	29.8 mm (1.2 in)	58 of 100 (Notable)
Peake	Australia	Record daily precipitation	34.8 mm (1.4 in)	58 of 100 (Notable)
Harrow (Post Office)	Australia	Record daily precipitation	37.0 mm (1.5 in)	58 of 100 (Notable)
Red Bluff Muni AP	United States	Record daily precipitation	25.7 mm (1.0 in)	58 of 100 (Notable)
Durham Downs	Australia	Record daily precipitation	28.4 mm (1.1 in)	57 of 100 (Notable)
Three Rivers	Australia	Record daily precipitation	53.6 mm (2.1 in)	56 of 100 (Notable)
Woolsthorpe	Australia	Record daily precipitation	42.0 mm (1.7 in)	56 of 100 (Notable)
Cardabia	Australia	Record daily precipitation	48.0 mm (1.9 in)	55 of 100 (Notable)
Yudnapinna	Australia	Record daily precipitation	27.0 mm (1.1 in)	55 of 100 (Notable)
Harrow (Pine Hills)	Australia	Record daily precipitation	42.5 mm (1.7 in)	55 of 100 (Notable)
Greenview	United States	Record daily precipitation	66.0 mm (2.6 in)	54 of 100 (Notable)
Minderoo	Australia	Record daily precipitation	134.0 mm (5.3 in)	53 of 100 (Notable)
Langhorne Creek	Australia	Record daily precipitation	28.6 mm (1.1 in)	52 of 100 (Notable)
Moorlands	Australia	Record daily precipitation	39.6 mm (1.6 in)	52 of 100 (Notable)
Maroonah	Australia	Record daily precipitation	36.0 mm (1.4 in)	51 of 100 (Notable)
Yarraloola	Australia	Record daily precipitation	37.6 mm (1.5 in)	50 of 100 (Notable)
Yunta (Paratoo)	Australia	Record daily precipitation	48.0 mm (1.9 in)	50 of 100 (Notable)
Broken Hill (Buckalow)	Australia	Record daily precipitation	36.5 mm (1.4 in)	50 of 100 (Notable)
Port Lincoln (Westmere)	Australia	Record daily precipitation	36.0 mm (1.4 in)	48 of 100 (Notable)
Minnedosa	Canada	Record high maximum temperature	32.0 C (89.6 F)	48 of 100 (Notable)
Longview	United States	Record daily precipitation	30.7 mm (1.2 in)	48 of 100 (Notable)
Huron Rgnl AP	United States	Record high maximum temperature	35.6 C (96.1 F)	48 of 100 (Notable)
Gurrai Post Office	Australia	Record daily precipitation	36.0 mm (1.4 in)	47 of 100 (Notable)
Ellerslie Post Office	Australia	Record daily precipitation	32.0 mm (1.3 in)	46 of 100 (Notable)
Wyloo	Australia	Record daily precipitation	55.0 mm (2.2 in)	45 of 100 (Notable)
Balmoral	Australia	Record daily precipitation	33.0 mm (1.3 in)	45 of 100 (Notable)
Lyndon	Australia	Record daily precipitation	38.0 mm (1.5 in)	45 of 100 (Notable)
Neds Creek	Australia	Record daily precipitation	57.0 mm (2.2 in)	45 of 100 (Notable)
Mount Weld	Australia	Record daily precipitation	29.0 mm (1.1 in)	45 of 100 (Notable)
Hamilton Station	Australia	Record daily precipitation	26.0 mm (1.0 in)	45 of 100 (Notable)
Doorawarrah	Australia	Record daily precipitation	27.0 mm (1.1 in)	44 of 100 (Notable)
Wilkadene (Murtho)	Australia	Record daily precipitation	29.0 mm (1.1 in)	44 of 100 (Notable)
Alawoona (Schells Well)	Australia	Record daily precipitation	34.4 mm (1.4 in)	44 of 100 (Notable)
Callendale	Australia	Record daily precipitation	38.0 mm (1.5 in)	44 of 100 (Notable)
Midland	United States	Record high maximum temperature	35.6 C (96.1 F)	44 of 100 (Notable)
Webster	United States	Record high maximum temperature	33.3 C (91.9 F)	44 of 100 (Notable)
Eureka WFO Woodley Is	United States	Record daily precipitation	44.2 mm (1.7 in)	44 of 100 (Notable)
Laverton	Australia	Record daily precipitation	32.6 mm (1.3 in)	43 of 100 (Notable)
Knin	Croatia	Record daily precipitation	54.9 mm (2.2 in)	43 of 100 (Notable)
Union Hidalgo	Mexico	Record low minimum temperature	13.9 C (57.0 F)	43 of 100 (Notable)
Wahpeton 3 N	United States	Record high maximum temperature	34.4 C (93.9 F)	43 of 100 (Notable)
Ashland	United States	Record daily precipitation	32.0 mm (1.3 in)	43 of 100 (Notable)
Dairy Creek	Australia	Record daily precipitation	38.0 mm (1.5 in)	42 of 100 (Notable)
Towera	Australia	Record daily precipitation	44.0 mm (1.7 in)	42 of 100 (Notable)
Jena Sternwarte	Germany	Record snow depth	10.0 cm (3.9 in)	42 of 100 (Notable)
Wilcannia (Billilla)	Australia	Record daily precipitation	51.0 mm (2.0 in)	41 of 100 (Notable)
Primghar	United States	Record high maximum temperature	32.2 C (90.0 F)	41 of 100 (Notable)
Williston Sloulin Fld	United States	Record high maximum temperature	33.3 C (91.9 F)	41 of 100 (Notable)
Ullawarra	Australia	Record daily precipitation	69.5 mm (2.7 in)	40 of 100 (Notable)
De Smet	United States	Record high maximum temperature	35.6 C (96.1 F)	40 of 100 (Notable)
Eureka	United States	Record high maximum temperature	32.8 C (91.0 F)	40 of 100 (Notable)

Counts by Type and Timescale

1,539 records

Records set or tied on 20 April 1980 by type: Highest daily maximum 671, Lowest daily maximum 98, Highest daily minimum 260, Lowest daily minimum 37, Heaviest daily rainfall 416, Heaviest daily snowfall 6, Deepest snow cover 51.

Records on 20 April 1980 by type
Record type	Records
Highest daily maximum	671
Lowest daily maximum	98
Highest daily minimum	260
Lowest daily minimum	37
Heaviest daily rainfall	416
Heaviest daily snowfall	6
Deepest snow cover	51

Records on 20 April 1980 by timescale: all-time 1, monthly 162, daily 1,376.

How Much Records Were Beaten By

1,278 broken records

Margins by which the 1,278 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 279.0. Ties are not counted.

Top 20 by Significance

20 April 1980

Top 20 records on 20 April 1980 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1980	Port Lincoln, AU	daily rain	46.0 mm (1.8 in)	30.8 mm (1.2 in)	71 years	71 of 100 (Major)
20 April 1980	Indee, AU	daily rain	65.5 mm (2.6 in)	65.5 mm (2.6 in)	70 years	62 of 100 (Major)
20 April 1980	Onslow, AU	daily rain	76.3 mm (3.0 in)	75.8 mm (3.0 in)	71 years	62 of 100 (Major)
20 April 1980	Ningaloo, AU	daily rain	57.0 mm (2.2 in)	55.7 mm (2.2 in)	44 years	61 of 100 (Major)
20 April 1980	Innamincka Station, AU	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	96 years	61 of 100 (Major)
20 April 1980	Wilcannia (Reid St), AU	daily rain	46.0 mm (1.8 in)	20.6 mm (0.8 in)	99 years	61 of 100 (Major)
20 April 1980	Winderie, AU	daily rain	38.0 mm (1.5 in)	30.6 mm (1.2 in)	44 years	60 of 100 (Major)
20 April 1980	Charam, AU	daily rain	39.0 mm (1.5 in)	29.6 mm (1.2 in)	46 years	60 of 100 (Major)
20 April 1980	Bryah, AU	daily rain	42.0 mm (1.7 in)	28.8 mm (1.1 in)	57 years	59 of 100 (Notable)
20 April 1980	Warramboo, AU	daily rain	29.8 mm (1.2 in)	28.3 mm (1.1 in)	46 years	58 of 100 (Notable)
20 April 1980	Peake, AU	daily rain	34.8 mm (1.4 in)	27.7 mm (1.1 in)	37 years	58 of 100 (Notable)
20 April 1980	Harrow (Post Office), AU	daily rain	37.0 mm (1.5 in)	28.6 mm (1.1 in)	37 years	58 of 100 (Notable)
20 April 1980	Red Bluff Muni AP, US	daily rain	25.7 mm (1.0 in)	20.1 mm (0.8 in)	80 years	58 of 100 (Notable)
20 April 1980	Durham Downs, AU	daily rain	28.4 mm (1.1 in)	28.4 mm (1.1 in)	86 years	57 of 100 (Notable)
20 April 1980	Three Rivers, AU	monthly rain	53.6 mm (2.1 in)	15.5 mm (0.6 in)	71 years	56 of 100 (Notable)
20 April 1980	Woolsthorpe, AU	daily rain	42.0 mm (1.7 in)	24.0 mm (0.9 in)	24 years	56 of 100 (Notable)
20 April 1980	Cardabia, AU	daily rain	48.0 mm (1.9 in)	38.3 mm (1.5 in)	42 years	55 of 100 (Notable)
20 April 1980	Yudnapinna, AU	daily rain	27.0 mm (1.1 in)	17.9 mm (0.7 in)	61 years	55 of 100 (Notable)
20 April 1980	Harrow (Pine Hills), AU	daily rain	42.5 mm (1.7 in)	13.5 mm (0.5 in)	88 years	55 of 100 (Notable)
20 April 1980	Greenview, US	monthly rain	66.0 mm (2.6 in)	20.8 mm (0.8 in)	28 years	54 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

1807 to 1980

Records set or tied on this calendar date in each year from 1807 to 1980. 1980 had 1,539 records.

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

Records on 04-20 in each year
Year	Records
1807	3
1817	1
1838	1
1849	2
1851	1
1852	4
1854	1
1858	1
1860	1
1864	1
1865	3
1868	1
1869	1
1870	1
1872	1
1874	3
1875	4
1876	1
1878	2
1880	2
1881	2
1884	1
1885	1
1886	2
1889	1
1891	2
1892	1
1893	6
1894	8
1895	7
1896	3
1897	6
1898	1
1899	1
1901	8
1902	3
1903	14
1904	31
1905	9
1906	12
1907	18
1908	14
1909	22
1910	25
1911	18
1912	12
1913	19
1914	46
1915	45
1916	19
1917	33
1918	42
1919	17
1920	49
1921	27
1922	40
1923	157
1924	113
1925	169
1926	310
1927	442
1928	212
1929	182
1930	87
1931	255
1932	166
1933	279
1934	384
1935	384
1936	311
1937	427
1938	339
1939	158
1940	519
1941	558
1942	223
1943	670
1944	304
1945	391
1946	395
1947	308
1948	493
1949	477
1950	329
1951	690
1952	552
1953	1,071
1954	377
1955	623
1956	384
1957	730
1958	327
1959	563
1960	472
1961	1,078
1962	487
1963	595
1964	749
1965	724
1966	1,174
1967	864
1968	975
1969	382
1970	948
1971	765
1972	531
1973	982
1974	673
1975	344
1976	661
1977	693
1978	800
1979	495
1980	1,539
1981	706
1982	906
1983	1,844
1984	922
1985	1,140
1986	770
1987	1,447
1988	1,144
1989	1,187
1990	1,495
1991	1,075
1992	1,009
1993	772
1994	756
1995	1,351
1996	970
1997	833
1998	1,490
1999	674
2000	931
2001	752
2002	1,081
2003	758
2004	567
2005	707
2006	859
2007	582
2008	1,110
2009	845
2010	693
2011	1,477
2012	726
2013	1,520
2014	384
2015	702
2016	650
2017	734
2018	1,309
2019	1,019
2020	449
2021	1,215
2022	596
2023	828
2024	673
2025	836
2026	533

Download the Data

Data for records on 1980-04-20: 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	1,266
50 to 100	11
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	1