Weather Records on 20 June 1979

727 weather records were set or tied worldwide on 20 June 1979. Highest significance: Napoleon, US.

Key Facts for 20 June 1979

On 20 June 1979, 727 weather records were set or tied at long-record stations worldwide.
188 were record highs and 220 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 715 daily.
Napoleon set a daily record precipitation of 66.3 mm (2.6 in) on 20 June 1979.
Across 158 earlier years (1800 to 2026) the same calendar date averaged 456 records.

Record Map

727 stations

727 station records on 20 June 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 June 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Napoleon	United States	Record daily precipitation	66.3 mm (2.6 in)	71 of 100 (Major)
Hambledon Mill Csr	Australia	Record daily precipitation	63.0 mm (2.5 in)	61 of 100 (Major)
Kuranda Railway Station	Australia	Record daily precipitation	77.0 mm (3.0 in)	61 of 100 (Major)
Maddock	United States	Record daily precipitation	61.7 mm (2.4 in)	61 of 100 (Major)
Franklyn Vale	Australia	Record daily precipitation	91.4 mm (3.6 in)	57 of 100 (Notable)
Komrat	Moldova	Record daily precipitation	94.1 mm (3.7 in)	52 of 100 (Notable)
Mossman South Alchera Drive	Australia	Record daily precipitation	88.2 mm (3.5 in)	51 of 100 (Notable)
Groongal (Groongal Station)	Australia	Record daily precipitation	38.0 mm (1.5 in)	51 of 100 (Notable)
Wishek	United States	Record daily precipitation	61.0 mm (2.4 in)	51 of 100 (Notable)
Low Isles Lighthouse	Australia	Record daily precipitation	86.2 mm (3.4 in)	50 of 100 (Notable)
Meringa Sugar Exp STN	Australia	Record daily precipitation	70.0 mm (2.8 in)	50 of 100 (Notable)
Mama	Russia	Record daily precipitation	35.0 mm (1.4 in)	50 of 100 (Notable)
Hannah 2 N	United States	Record daily precipitation	87.4 mm (3.4 in)	50 of 100 (Notable)
Julatten	Australia	Record daily precipitation	68.8 mm (2.7 in)	48 of 100 (Notable)
Cardwell Marine Pde	Australia	Record daily precipitation	39.0 mm (1.5 in)	48 of 100 (Notable)
Big Sandy	United States	Record daily precipitation	53.6 mm (2.1 in)	48 of 100 (Notable)
Clohesy River	Australia	Record daily precipitation	63.2 mm (2.5 in)	47 of 100 (Notable)
Koah	Australia	Record daily precipitation	60.6 mm (2.4 in)	47 of 100 (Notable)
Hillston (Hunthawang)	Australia	Record daily precipitation	49.4 mm (1.9 in)	47 of 100 (Notable)
Pokegama Dam	United States	Record daily precipitation	52.3 mm (2.1 in)	47 of 100 (Notable)
Cairns Aero	Australia	Record daily precipitation	64.4 mm (2.5 in)	46 of 100 (Notable)
Mossman Post Office	Australia	Record daily precipitation	81.0 mm (3.2 in)	46 of 100 (Notable)
Halifax Macrossan St	Australia	Record daily precipitation	38.6 mm (1.5 in)	46 of 100 (Notable)
Birricannia	Australia	Record daily precipitation	91.4 mm (3.6 in)	46 of 100 (Notable)
Amby	Australia	Record daily precipitation	44.0 mm (1.7 in)	46 of 100 (Notable)
Hillston Airport	Australia	Record daily precipitation	33.6 mm (1.3 in)	46 of 100 (Notable)
Munich 1 SSW	United States	Record daily precipitation	61.7 mm (2.4 in)	46 of 100 (Notable)
Oakes	United States	Record daily precipitation	70.9 mm (2.8 in)	46 of 100 (Notable)
Danbulla Forestry	Australia	Record daily precipitation	44.8 mm (1.8 in)	45 of 100 (Notable)
Trida (Willandra National Park	Australia	Record daily precipitation	35.0 mm (1.4 in)	45 of 100 (Notable)
Old Koreelah (McPherson)	Australia	Record daily precipitation	67.0 mm (2.6 in)	45 of 100 (Notable)
Groongal (Gundaline)	Australia	Record daily precipitation	43.6 mm (1.7 in)	45 of 100 (Notable)
Sackville	Canada	Record low minimum temperature	4.0 C (39.2 F)	45 of 100 (Notable)
Sombrerete (Dge)	Mexico	Record low minimum temperature	5.6 C (42.1 F)	45 of 100 (Notable)
Centennial Park	Australia	Record daily precipitation	51.5 mm (2.0 in)	44 of 100 (Notable)
Cottonwood 2 E	United States	Record daily precipitation	43.9 mm (1.7 in)	44 of 100 (Notable)
Mount Hope (Cypress Grove)	Australia	Record daily precipitation	35.0 mm (1.4 in)	43 of 100 (Notable)
Greensburg	United States	Record daily precipitation	54.1 mm (2.1 in)	43 of 100 (Notable)
Fessenden	United States	Record daily precipitation	71.1 mm (2.8 in)	43 of 100 (Notable)
Blackall Township	Australia	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Goolgowi (Moira St)	Australia	Record daily precipitation	40.0 mm (1.6 in)	42 of 100 (Notable)
Carrathool (Uardry)	Australia	Record daily precipitation	42.2 mm (1.7 in)	42 of 100 (Notable)
Catemaco	Mexico	Record low minimum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
Milesville 5 NE	United States	Record daily precipitation	33.8 mm (1.3 in)	42 of 100 (Notable)
Yarrabah Comm Council	Australia	Record daily precipitation	66.2 mm (2.6 in)	41 of 100 (Notable)
Hay (Mulberrygong)	Australia	Record daily precipitation	43.0 mm (1.7 in)	41 of 100 (Notable)
Frankfort 2NE	United States	Record daily precipitation	31.0 mm (1.2 in)	41 of 100 (Notable)
Malanda Post Office	Australia	Record daily precipitation	34.2 mm (1.3 in)	40 of 100 (Notable)
Trafalgar Station	Australia	Record daily precipitation	28.8 mm (1.1 in)	40 of 100 (Notable)
Ilfracombe Post Office	Australia	Record daily precipitation	43.0 mm (1.7 in)	40 of 100 (Notable)
Terrick Terrick Stud	Australia	Record daily precipitation	36.4 mm (1.4 in)	40 of 100 (Notable)
Feodosiia	Ukraine	Record high minimum temperature	23.2 C (73.8 F)	40 of 100 (Notable)
Peeramon	Australia	Record daily precipitation	38.4 mm (1.5 in)	39 of 100 (Notable)
Debrecen Airport	Hungary	Record daily precipitation	41.2 mm (1.6 in)	39 of 100 (Notable)
Mossman Central Mill	Australia	Record daily precipitation	80.8 mm (3.2 in)	38 of 100 (Notable)
Whyanbeel Valley	Australia	Record daily precipitation	81.0 mm (3.2 in)	38 of 100 (Notable)
Clarke River Telecom	Australia	Record daily precipitation	34.0 mm (1.3 in)	38 of 100 (Notable)
Carrathool (Gum Creek)	Australia	Record daily precipitation	37.2 mm (1.5 in)	38 of 100 (Notable)
Marshall	United States	Record daily precipitation	52.8 mm (2.1 in)	38 of 100 (Notable)
Milan 1NW	United States	Record daily precipitation	63.8 mm (2.5 in)	38 of 100 (Notable)

Counts by Type and Timescale

727 records

Records set or tied on 20 June 1979 by type: Highest daily maximum 70, Lowest daily maximum 63, Highest daily minimum 118, Lowest daily minimum 157, Heaviest daily rainfall 319.

Records on 20 June 1979 by type
Record type	Records
Highest daily maximum	70
Lowest daily maximum	63
Highest daily minimum	118
Lowest daily minimum	157
Heaviest daily rainfall	319
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 June 1979 by timescale: all-time 0, monthly 12, daily 715.

How Much Records Were Beaten By

579 broken records

Margins by which the 579 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 72.3. Ties are not counted.

Top 20 by Significance

20 June 1979

Top 20 records on 20 June 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 June 1979	Napoleon, US	daily rain	66.3 mm (2.6 in)	45.2 mm (1.8 in)	79 years	71 of 100 (Major)
20 June 1979	Hambledon Mill Csr, AU	daily rain	63.0 mm (2.5 in)	46.7 mm (1.8 in)	45 years	61 of 100 (Major)
20 June 1979	Kuranda Railway Station, AU	daily rain	77.0 mm (3.0 in)	53.6 mm (2.1 in)	44 years	61 of 100 (Major)
20 June 1979	Maddock, US	daily rain	61.7 mm (2.4 in)	39.1 mm (1.5 in)	64 years	61 of 100 (Major)
20 June 1979	Franklyn Vale, AU	daily rain	91.4 mm (3.6 in)	54.8 mm (2.2 in)	53 years	57 of 100 (Notable)
20 June 1979	Komrat, MD	daily rain	94.1 mm (3.7 in)	72.3 mm (2.8 in)	32 years	52 of 100 (Notable)
20 June 1979	Mossman South Alchera Drive, AU	daily rain	88.2 mm (3.5 in)	51.9 mm (2.0 in)	18 years	51 of 100 (Notable)
20 June 1979	Groongal (Groongal Station), AU	daily rain	38.0 mm (1.5 in)	17.7 mm (0.7 in)	53 years	51 of 100 (Notable)
20 June 1979	Wishek, US	daily rain	61.0 mm (2.4 in)	45.8 mm (1.8 in)	28 years	51 of 100 (Notable)
20 June 1979	Low Isles Lighthouse, AU	daily rain	86.2 mm (3.4 in)	69.2 mm (2.7 in)	4 years	50 of 100 (Notable)
20 June 1979	Meringa Sugar Exp STN, AU	daily rain	70.0 mm (2.8 in)	56.8 mm (2.2 in)	20 years	50 of 100 (Notable)
20 June 1979	Mama, RU	daily rain	35.0 mm (1.4 in)	24.1 mm (0.9 in)	22 years	50 of 100 (Notable)
20 June 1979	Hannah 2 N, US	monthly rain	87.4 mm (3.4 in)	27.7 mm (1.1 in)	25 years	50 of 100 (Notable)
20 June 1979	Julatten, AU	daily rain	68.8 mm (2.7 in)	47.2 mm (1.9 in)	12 years	48 of 100 (Notable)
20 June 1979	Cardwell Marine Pde, AU	daily rain	39.0 mm (1.5 in)	28.8 mm (1.1 in)	21 years	48 of 100 (Notable)
20 June 1979	Big Sandy, US	daily rain	53.6 mm (2.1 in)	26.9 mm (1.1 in)	52 years	48 of 100 (Notable)
20 June 1979	Clohesy River, AU	daily rain	63.2 mm (2.5 in)	43.4 mm (1.7 in)	12 years	47 of 100 (Notable)
20 June 1979	Koah, AU	daily rain	60.6 mm (2.4 in)	42.8 mm (1.7 in)	12 years	47 of 100 (Notable)
20 June 1979	Hillston (Hunthawang), AU	monthly rain	49.4 mm (1.9 in)	2.2 mm (0.09 in)	81 years	47 of 100 (Notable)
20 June 1979	Pokegama Dam, US	daily rain	52.3 mm (2.1 in)	15.0 mm (0.6 in)	84 years	47 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

1800 to 1979

Records set or tied on this calendar date in each year from 1800 to 1979. 1979 had 727 records.

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

Records on 06-20 in each year
Year	Records
1800	1
1803	1
1813	1
1821	2
1838	1
1839	1
1841	1
1844	1
1846	2
1847	1
1850	1
1855	2
1857	1
1861	1
1865	2
1867	1
1869	2
1872	1
1873	1
1877	2
1879	1
1884	1
1886	2
1887	2
1891	2
1892	2
1893	2
1895	4
1896	3
1897	6
1898	3
1899	6
1900	4
1901	5
1902	7
1903	22
1904	13
1905	14
1906	18
1907	10
1908	30
1909	9
1910	27
1911	27
1912	17
1913	30
1914	53
1915	75
1916	83
1917	96
1918	54
1919	67
1920	40
1921	42
1922	61
1923	263
1924	204
1925	483
1926	228
1927	193
1928	199
1929	137
1930	143
1931	536
1932	182
1933	676
1934	301
1935	337
1936	529
1937	412
1938	326
1939	270
1940	469
1941	200
1942	757
1943	447
1944	315
1945	769
1946	849
1947	387
1948	554
1949	314
1950	328
1951	289
1952	318
1953	998
1954	414
1955	291
1956	484
1957	598
1958	603
1959	504
1960	451
1961	836
1962	173
1963	379
1964	729
1965	463
1966	441
1967	687
1968	559
1969	982
1970	482
1971	395
1972	660
1973	553
1974	743
1975	984
1976	899
1977	453
1978	480
1979	727
1980	922
1981	987
1982	801
1983	724
1984	686
1985	811
1986	732
1987	960
1988	1,222
1989	918
1990	899
1991	1,085
1992	1,049
1993	964
1994	925
1995	1,260
1996	1,123
1997	738
1998	1,627
1999	906
2000	1,328
2001	771
2002	955
2003	843
2004	1,071
2005	1,055
2006	820
2007	1,208
2008	669
2009	1,060
2010	865
2011	1,359
2012	1,045
2013	879
2014	381
2015	637
2016	1,352
2017	1,086
2018	635
2019	693
2020	590
2021	1,161
2022	972
2023	1,265
2024	783
2025	944
2026	757

Download the Data

Data for records on 1979-06-20: 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 10	433
10 to 20	84
20 to 30	28
30 to 40	13
40 to 50	13
50 to 60	5
60 to 70	1
70 to 80	2