Weather Records on 18 April 1980

842 weather records were set or tied worldwide on 18 April 1980. Highest significance: Robe Comparison, AU.

Key Facts for 18 April 1980

On 18 April 1980, 842 weather records were set or tied at long-record stations worldwide.
315 were record highs and 128 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 20 monthly and 820 daily.
Robe Comparison set a daily record precipitation of 50.4 mm (2.0 in) on 18 April 1980.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 465 records.

Record Map

842 stations

842 station records on 18 April 1980 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1980: highest significance records shown on the map
Station	Country	Type	Value	Significance
Robe Comparison	Australia	Record daily precipitation	50.4 mm (2.0 in)	80 of 100 (Exceptional)
Murray Bridge (Tepko)	Australia	Record daily precipitation	36.6 mm (1.4 in)	73 of 100 (Major)
Second Valley (Spring Grove)	Australia	Record daily precipitation	51.0 mm (2.0 in)	69 of 100 (Major)
Normanville	Australia	Record daily precipitation	31.0 mm (1.2 in)	65 of 100 (Major)
Millicent	Australia	Record daily precipitation	48.6 mm (1.9 in)	65 of 100 (Major)
Cape Willoughby	Australia	Record daily precipitation	36.2 mm (1.4 in)	63 of 100 (Major)
Lake Leake (Kooeeyong)	Australia	Record daily precipitation	41.2 mm (1.6 in)	63 of 100 (Major)
Edithburgh Post Office	Australia	Record daily precipitation	28.0 mm (1.1 in)	62 of 100 (Major)
Kingston SE	Australia	Record daily precipitation	47.0 mm (1.9 in)	62 of 100 (Major)
Yankalilla	Australia	Record daily precipitation	35.8 mm (1.4 in)	61 of 100 (Major)
Tanunda	Australia	Record daily precipitation	40.0 mm (1.6 in)	60 of 100 (Major)
Harrogate	Australia	Record daily precipitation	44.4 mm (1.7 in)	60 of 100 (Major)
Domingos Martins (Dnos)	Brazil	Record daily precipitation	115.4 mm (4.5 in)	60 of 100 (Major)
Warooka	Australia	Record daily precipitation	40.6 mm (1.6 in)	58 of 100 (Notable)
Adelaide (Pooraka)	Australia	Record daily precipitation	30.4 mm (1.2 in)	57 of 100 (Notable)
Aldinga Post Office	Australia	Record daily precipitation	28.0 mm (1.1 in)	57 of 100 (Notable)
Strathalbyn	Australia	Record daily precipitation	28.8 mm (1.1 in)	56 of 100 (Notable)
Cambrai (Kongolia)	Australia	Record daily precipitation	33.4 mm (1.3 in)	56 of 100 (Notable)
Palmer	Australia	Record daily precipitation	43.6 mm (1.7 in)	56 of 100 (Notable)
Cape Jaffa (Jaffa Hills)	Australia	Record daily precipitation	47.0 mm (1.9 in)	56 of 100 (Notable)
Yarrie	Australia	Record daily precipitation	64.4 mm (2.5 in)	55 of 100 (Notable)
Narrung (Yalkuri)	Australia	Record daily precipitation	29.0 mm (1.1 in)	54 of 100 (Notable)
Burra (Poonunda)	Australia	Record daily precipitation	37.5 mm (1.5 in)	52 of 100 (Notable)
Mannum Council Depot	Australia	Record daily precipitation	59.6 mm (2.3 in)	52 of 100 (Notable)
Santa Leopoldina (Dnos)	Brazil	Record daily precipitation	70.2 mm (2.8 in)	52 of 100 (Notable)
Ashville	Australia	Record daily precipitation	34.4 mm (1.4 in)	51 of 100 (Notable)
Callington	Australia	Record daily precipitation	38.8 mm (1.5 in)	51 of 100 (Notable)
Clarendon	Australia	Record daily precipitation	32.8 mm (1.3 in)	50 of 100 (Notable)
Tumby Bay	Australia	Record daily precipitation	25.0 mm (1.0 in)	49 of 100 (Notable)
Roseworthy Agric College	Australia	Record daily precipitation	26.5 mm (1.0 in)	49 of 100 (Notable)
Penneshaw	Australia	Record daily precipitation	34.4 mm (1.4 in)	48 of 100 (Notable)
Kingscote	Australia	Record daily precipitation	25.5 mm (1.0 in)	47 of 100 (Notable)
Cooke Plains	Australia	Record daily precipitation	28.8 mm (1.1 in)	47 of 100 (Notable)
Peterborough	Australia	Record daily precipitation	35.0 mm (1.4 in)	46 of 100 (Notable)
Langhorne Creek	Australia	Record daily precipitation	26.4 mm (1.0 in)	46 of 100 (Notable)
Meningie (Waltowa)	Australia	Record daily precipitation	37.0 mm (1.5 in)	46 of 100 (Notable)
Carrieton	Australia	Record daily precipitation	32.0 mm (1.3 in)	45 of 100 (Notable)
Beachport	Australia	Record daily precipitation	50.0 mm (2.0 in)	45 of 100 (Notable)
Kyra	Russia	Record daily precipitation	25.5 mm (1.0 in)	45 of 100 (Notable)
Mount Templeton (Glenalbyn)	Australia	Record daily precipitation	34.6 mm (1.4 in)	43 of 100 (Notable)
Sedan	Australia	Record daily precipitation	40.0 mm (1.6 in)	43 of 100 (Notable)
Alert Bay	Canada	Record daily precipitation	39.8 mm (1.6 in)	43 of 100 (Notable)
Hallett (Old Canowie)	Australia	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Yorketown	Australia	Record daily precipitation	28.8 mm (1.1 in)	42 of 100 (Notable)
Boolcoomatta	Australia	Record daily precipitation	29.2 mm (1.1 in)	41 of 100 (Notable)
Mount Burr Forest Reserve	Australia	Record daily precipitation	41.6 mm (1.6 in)	41 of 100 (Notable)
Fundao	Brazil	Record daily precipitation	50.0 mm (2.0 in)	40 of 100 (Notable)
Wilpena Head Station	Australia	Record daily precipitation	35.2 mm (1.4 in)	39 of 100 (Notable)
Mount Pleasant	Australia	Record daily precipitation	43.6 mm (1.7 in)	39 of 100 (Notable)
Koonamore	Australia	Record daily precipitation	38.0 mm (1.5 in)	38 of 100 (Notable)
Port Victoria	Australia	Record daily precipitation	31.2 mm (1.2 in)	38 of 100 (Notable)
Willunga	Australia	Record daily precipitation	30.2 mm (1.2 in)	38 of 100 (Notable)
Murray Bridge Comparison	Australia	Record daily precipitation	34.8 mm (1.4 in)	38 of 100 (Notable)
Austin #2	United States	Record high maximum temperature	24.4 C (75.9 F)	38 of 100 (Notable)
Port Broughton	Australia	Record daily precipitation	25.0 mm (1.0 in)	37 of 100 (Notable)
McLaren Vale	Australia	Record daily precipitation	31.8 mm (1.3 in)	37 of 100 (Notable)
Mount Gambier Aero	Australia	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Whyte Yarcowie	Australia	Record daily precipitation	28.5 mm (1.1 in)	36 of 100 (Notable)
Victor Harbor (Rivington Grang	Australia	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Eudunda	Australia	Record daily precipitation	30.6 mm (1.2 in)	36 of 100 (Notable)

Counts by Type and Timescale

842 records

Records set or tied on 18 April 1980 by type: Highest daily maximum 197, Lowest daily maximum 60, Highest daily minimum 118, Lowest daily minimum 68, Heaviest daily rainfall 393, Heaviest daily snowfall 2, Deepest snow cover 4.

Records on 18 April 1980 by type
Record type	Records
Highest daily maximum	197
Lowest daily maximum	60
Highest daily minimum	118
Lowest daily minimum	68
Heaviest daily rainfall	393
Heaviest daily snowfall	2
Deepest snow cover	4

Records on 18 April 1980 by timescale: all-time 2, monthly 20, daily 820.

How Much Records Were Beaten By

711 broken records

Margins by which the 711 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 280.0. Ties are not counted.

Top 20 by Significance

18 April 1980

Top 20 records on 18 April 1980 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1980	Robe Comparison, AU	daily rain	50.4 mm (2.0 in)	35.7 mm (1.4 in)	105 years	80 of 100 (Exceptional)
18 April 1980	Murray Bridge (Tepko), AU	daily rain	36.6 mm (1.4 in)	22.9 mm (0.9 in)	84 years	73 of 100 (Major)
18 April 1980	Second Valley (Spring Grove), AU	daily rain	51.0 mm (2.0 in)	29.4 mm (1.2 in)	81 years	69 of 100 (Major)
18 April 1980	Normanville, AU	daily rain	31.0 mm (1.2 in)	21.6 mm (0.9 in)	85 years	65 of 100 (Major)
18 April 1980	Millicent, AU	daily rain	48.6 mm (1.9 in)	21.2 mm (0.8 in)	85 years	65 of 100 (Major)
18 April 1980	Cape Willoughby, AU	daily rain	36.2 mm (1.4 in)	26.0 mm (1.0 in)	46 years	63 of 100 (Major)
18 April 1980	Lake Leake (Kooeeyong), AU	daily rain	41.2 mm (1.6 in)	20.1 mm (0.8 in)	85 years	63 of 100 (Major)
18 April 1980	Edithburgh Post Office, AU	daily rain	28.0 mm (1.1 in)	17.1 mm (0.7 in)	84 years	62 of 100 (Major)
18 April 1980	Kingston SE, AU	daily rain	47.0 mm (1.9 in)	32.8 mm (1.3 in)	42 years	62 of 100 (Major)
18 April 1980	Yankalilla, AU	daily rain	35.8 mm (1.4 in)	25.1 mm (1.0 in)	66 years	61 of 100 (Major)
18 April 1980	Tanunda, AU	daily rain	40.0 mm (1.6 in)	20.9 mm (0.8 in)	84 years	60 of 100 (Major)
18 April 1980	Harrogate, AU	daily rain	44.4 mm (1.7 in)	31.2 mm (1.2 in)	42 years	60 of 100 (Major)
18 April 1980	Domingos Martins (Dnos), BR	monthly rain	115.4 mm (4.5 in)	39.8 mm (1.6 in)	26 years	60 of 100 (Major)
18 April 1980	Warooka, AU	daily rain	40.6 mm (1.6 in)	16.5 mm (0.6 in)	76 years	58 of 100 (Notable)
18 April 1980	Adelaide (Pooraka), AU	daily rain	30.4 mm (1.2 in)	17.2 mm (0.7 in)	84 years	57 of 100 (Notable)
18 April 1980	Aldinga Post Office, AU	daily rain	28.0 mm (1.1 in)	15.3 mm (0.6 in)	84 years	57 of 100 (Notable)
18 April 1980	Strathalbyn, AU	daily rain	28.8 mm (1.1 in)	16.9 mm (0.7 in)	66 years	56 of 100 (Notable)
18 April 1980	Cambrai (Kongolia), AU	daily rain	33.4 mm (1.3 in)	20.4 mm (0.8 in)	45 years	56 of 100 (Notable)
18 April 1980	Palmer, AU	daily rain	43.6 mm (1.7 in)	34.2 mm (1.3 in)	29 years	56 of 100 (Notable)
18 April 1980	Cape Jaffa (Jaffa Hills), AU	daily rain	47.0 mm (1.9 in)	26.2 mm (1.0 in)	42 years	56 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 1980

Records set or tied on this calendar date in each year from 1793 to 1980. 1980 had 842 records.

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

Records on 04-18 in each year
Year	Records
1793	1
1807	2
1815	1
1838	1
1847	1
1849	1
1851	1
1852	3
1854	3
1855	1
1865	4
1867	1
1870	1
1871	1
1875	4
1877	2
1878	1
1879	3
1880	2
1884	2
1886	2
1887	3
1888	1
1889	1
1890	2
1891	1
1892	3
1893	5
1894	7
1895	2
1896	3
1897	5
1898	8
1899	2
1900	2
1901	6
1902	5
1903	11
1904	9
1905	12
1906	18
1907	17
1908	37
1909	19
1910	19
1911	25
1912	21
1913	26
1914	38
1915	31
1916	22
1917	40
1918	76
1919	16
1920	64
1921	58
1922	85
1923	107
1924	101
1925	154
1926	322
1927	391
1928	323
1929	126
1930	113
1931	173
1932	326
1933	211
1934	391
1935	264
1936	483
1937	477
1938	711
1939	525
1940	322
1941	496
1942	287
1943	298
1944	259
1945	371
1946	357
1947	444
1948	932
1949	345
1950	244
1951	658
1952	536
1953	1,322
1954	442
1955	817
1956	467
1957	629
1958	370
1959	468
1960	320
1961	520
1962	484
1963	662
1964	449
1965	363
1966	776
1967	882
1968	867
1969	795
1970	771
1971	1,106
1972	470
1973	953
1974	326
1975	751
1976	1,309
1977	717
1978	803
1979	841
1980	842
1981	708
1982	616
1983	2,082
1984	625
1985	1,119
1986	622
1987	1,068
1988	936
1989	625
1990	1,368
1991	780
1992	702
1993	730
1994	1,218
1995	1,601
1996	826
1997	1,256
1998	1,011
1999	1,428
2000	912
2001	1,487
2002	2,084
2003	969
2004	846
2005	622
2006	1,262
2007	675
2008	913
2009	624
2010	478
2011	1,122
2012	744
2013	2,509
2014	534
2015	519
2016	973
2017	588
2018	1,202
2019	601
2020	770
2021	592
2022	1,013
2023	739
2024	641
2025	997
2026	498

Download the Data

Data for records on 1980-04-18: 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	706
50 to 100	4
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	1