Weather Records on 20 June 1977

453 weather records were set or tied worldwide on 20 June 1977. Highest significance: Hawkesdale (Post Office), AU.

Key Facts for 20 June 1977

On 20 June 1977, 453 weather records were set or tied at long-record stations worldwide.
174 were record highs and 113 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 442 daily.
Hawkesdale (Post Office) set a daily record precipitation of 30.6 mm (1.2 in) on 20 June 1977.
Across 158 earlier years (1800 to 2026) the same calendar date averaged 458 records.

Record Map

453 stations

453 station records on 20 June 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 June 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hawkesdale (Post Office)	Australia	Record daily precipitation	30.6 mm (1.2 in)	67 of 100 (Major)
Vardoe	Norway	Record daily precipitation	28.5 mm (1.1 in)	62 of 100 (Major)
Moonan Flat (High St)	Australia	Record daily precipitation	45.0 mm (1.8 in)	55 of 100 (Notable)
Caramut (Barwidgee)	Australia	Record daily precipitation	40.1 mm (1.6 in)	51 of 100 (Notable)
Svatove	Ukraine	Record daily precipitation	39.5 mm (1.6 in)	51 of 100 (Notable)
Montmorillon	France	Record daily precipitation	54.0 mm (2.1 in)	50 of 100 (Notable)
Wheatland 4N	United States	Record daily precipitation	35.3 mm (1.4 in)	49 of 100 (Notable)
Churumuco (Cfe)	Mexico	Record daily precipitation	53.8 mm (2.1 in)	43 of 100 (Notable)
Puerto Madero	Mexico	Record low minimum temperature	11.7 C (53.1 F)	42 of 100 (Notable)
Tashkent	Uzbekistan	Record high minimum temperature	23.5 C (74.3 F)	42 of 100 (Notable)
Maldon (Derby Hill)	Australia	Record daily precipitation	41.0 mm (1.6 in)	41 of 100 (Notable)
Pelion 0.8 NW	United States	Record daily precipitation	102.1 mm (4.0 in)	41 of 100 (Notable)
Fall Rvr Lake	United States	Record daily precipitation	32.3 mm (1.3 in)	40 of 100 (Notable)
Ekaterinburg	Russia	Record low maximum temperature	9.4 C (48.9 F)	39 of 100 (Notable)
Deols Chateauroux Aerodrome de	France	Record daily precipitation	39.7 mm (1.6 in)	38 of 100 (Notable)
Napas	Russia	Record daily precipitation	25.7 mm (1.0 in)	37 of 100 (Notable)
Biscuit Flat (Woolmit)	Australia	Record daily precipitation	31.0 mm (1.2 in)	36 of 100 (Notable)
Pierce City	United States	Record daily precipitation	92.7 mm (3.6 in)	36 of 100 (Notable)
Tataira	Brazil	Record daily precipitation	56.3 mm (2.2 in)	35 of 100 (Notable)
Batalha	Brazil	Record daily precipitation	46.8 mm (1.8 in)	34 of 100 (Routine)
Trois Rivieres	Canada	Record daily precipitation	37.6 mm (1.5 in)	34 of 100 (Routine)
Poretskoye	Russia	Record low maximum temperature	14.0 C (57.2 F)	34 of 100 (Routine)
Pedro Velho (Dnocs)	Brazil	Record daily precipitation	75.2 mm (3.0 in)	33 of 100 (Routine)
Chardzhev	Turkmenistan	Record high maximum temperature	43.6 C (110.5 F)	33 of 100 (Routine)
Lozova	Ukraine	Record daily precipitation	36.6 mm (1.4 in)	33 of 100 (Routine)
Barabinsk	Russia	Record high minimum temperature	19.1 C (66.4 F)	32 of 100 (Routine)
Marshfield 4 WSW	United States	Record daily precipitation	68.8 mm (2.7 in)	32 of 100 (Routine)
Kyzyl-Ozek	Russia	Record high maximum temperature	37.5 C (99.5 F)	31 of 100 (Routine)
Columbus	United States	Record daily precipitation	72.6 mm (2.9 in)	31 of 100 (Routine)
Carthage	United States	Record daily precipitation	101.6 mm (4.0 in)	31 of 100 (Routine)
De Bilt	Netherlands	Record low maximum temperature	13.1 C (55.6 F)	30 of 100 (Routine)
Hatanga	Russia	Record daily precipitation	37.5 mm (1.5 in)	30 of 100 (Routine)
Pavlograd	Ukraine	Record daily precipitation	33.7 mm (1.3 in)	30 of 100 (Routine)
Holm	Russia	Record daily precipitation	25.6 mm (1.0 in)	29 of 100 (Routine)
Skegness	United Kingdom	Record low maximum temperature	13.0 C (55.4 F)	29 of 100 (Routine)
Harveyville	United States	Record daily precipitation	62.2 mm (2.4 in)	29 of 100 (Routine)
Recanto	Brazil	Record daily precipitation	25.0 mm (1.0 in)	28 of 100 (Routine)
Waialua 847	United States	Record high minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Ico	Brazil	Record daily precipitation	34.9 mm (1.4 in)	27 of 100 (Routine)
Minden	Canada	Record daily precipitation	25.7 mm (1.0 in)	27 of 100 (Routine)
Bijsk Zonalnaja	Russia	Record high maximum temperature	36.6 C (97.9 F)	27 of 100 (Routine)
Eureka 1E	United States	Record daily precipitation	64.0 mm (2.5 in)	27 of 100 (Routine)
Brusque (Pcd)	Brazil	Record daily precipitation	29.4 mm (1.2 in)	26 of 100 (Routine)
Guayama 1SW	Puerto Rico [United States]	Record high minimum temperature	25.6 C (78.1 F)	26 of 100 (Routine)
Graca	Brazil	Record daily precipitation	45.2 mm (1.8 in)	25 of 100 (Routine)
La Pocatiere Cda	Canada	Record low maximum temperature	11.1 C (52.0 F)	25 of 100 (Routine)
Folkston 9 SW	United States	Record daily precipitation	59.2 mm (2.3 in)	25 of 100 (Routine)
Midland Park	United States	Record daily precipitation	53.1 mm (2.1 in)	25 of 100 (Routine)
Mittagong (Beatrice Street)	Australia	Record daily precipitation	35.0 mm (1.4 in)	24 of 100 (Routine)
Acude Riachao	Brazil	Record daily precipitation	34.2 mm (1.3 in)	24 of 100 (Routine)
Zajsan	Kazakhstan	Record high minimum temperature	27.5 C (81.5 F)	24 of 100 (Routine)
San Jose de Raices	Mexico	Record low minimum temperature	3.9 C (39.0 F)	24 of 100 (Routine)
Zacatecas (Smn)	Mexico	Record daily precipitation	49.8 mm (2.0 in)	24 of 100 (Routine)
Chanute Martin Johnson AP	United States	Record daily precipitation	45.2 mm (1.8 in)	24 of 100 (Routine)
Kinuso Rs	Canada	Record high minimum temperature	14.0 C (57.2 F)	23 of 100 (Routine)
Huajintlan	Mexico	Record low maximum temperature	28.9 C (84.0 F)	23 of 100 (Routine)
Hanty-Mansijsk	Russia	Record daily precipitation	29.1 mm (1.1 in)	23 of 100 (Routine)
Ft Pierce	United States	Record low minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
El Dorado	United States	Record daily precipitation	59.7 mm (2.4 in)	23 of 100 (Routine)
Taos	United States	Record high minimum temperature	15.6 C (60.1 F)	23 of 100 (Routine)

Counts by Type and Timescale

453 records

Records set or tied on 20 June 1977 by type: Highest daily maximum 69, Lowest daily maximum 82, Highest daily minimum 105, Lowest daily minimum 31, Heaviest daily rainfall 166.

Records on 20 June 1977 by type
Record type	Records
Highest daily maximum	69
Lowest daily maximum	82
Highest daily minimum	105
Lowest daily minimum	31
Heaviest daily rainfall	166
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 June 1977 by timescale: all-time 0, monthly 11, daily 442.

How Much Records Were Beaten By

378 broken records

Margins by which the 378 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 55.9. Ties are not counted.

Top 20 by Significance

20 June 1977

Top 20 records on 20 June 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 June 1977	Hawkesdale (Post Office), AU	daily rain	30.6 mm (1.2 in)	16.1 mm (0.6 in)	88 years	67 of 100 (Major)
20 June 1977	Vardoe, NO	daily rain	28.5 mm (1.1 in)	18.4 mm (0.7 in)	51 years	62 of 100 (Major)
20 June 1977	Moonan Flat (High St), AU	daily rain	45.0 mm (1.8 in)	25.9 mm (1.0 in)	76 years	55 of 100 (Notable)
20 June 1977	Caramut (Barwidgee), AU	monthly rain	40.1 mm (1.6 in)	11.7 mm (0.5 in)	35 years	51 of 100 (Notable)
20 June 1977	Svatove, UA	daily rain	39.5 mm (1.6 in)	31.4 mm (1.2 in)	36 years	51 of 100 (Notable)
20 June 1977	Montmorillon, FR	daily rain	54.0 mm (2.1 in)	32.8 mm (1.3 in)	22 years	50 of 100 (Notable)
20 June 1977	Wheatland 4N, US	daily rain	35.3 mm (1.4 in)	16.2 mm (0.6 in)	77 years	49 of 100 (Notable)
20 June 1977	Churumuco (Cfe), MX	daily rain	53.8 mm (2.1 in)	37.5 mm (1.5 in)	38 years	43 of 100 (Notable)
20 June 1977	Puerto Madero, MX	daily low min	11.7 C (53.1 F)	7.2 C (13.0 F)	22 years	42 of 100 (Notable)
20 June 1977	Tashkent, UZ	daily high min	23.5 C (74.3 F)	1.7 C (3.1 F)	93 years	42 of 100 (Notable)
20 June 1977	Maldon (Derby Hill), AU	daily rain	41.0 mm (1.6 in)	15.3 mm (0.6 in)	32 years	41 of 100 (Notable)
20 June 1977	Pelion 0.8 NW, US	daily rain	102.1 mm (4.0 in)	55.9 mm (2.2 in)	4 years	41 of 100 (Notable)
20 June 1977	Fall Rvr Lake, US	daily rain	32.3 mm (1.3 in)	16.0 mm (0.6 in)	75 years	40 of 100 (Notable)
20 June 1977	Ekaterinburg, RU	daily low max	9.4 C (48.9 F)	3.5 C (6.3 F)	80 years	39 of 100 (Notable)
20 June 1977	Deols Chateauroux Aerodrome de, FR	daily rain	39.7 mm (1.6 in)	7.4 mm (0.29 in)	68 years	38 of 100 (Notable)
20 June 1977	Napas, RU	daily rain	25.7 mm (1.0 in)	13.7 mm (0.5 in)	32 years	37 of 100 (Notable)
20 June 1977	Biscuit Flat (Woolmit), AU	daily rain	31.0 mm (1.2 in)	8.1 mm (0.32 in)	62 years	36 of 100 (Notable)
20 June 1977	Pierce City, US	daily rain	92.7 mm (3.6 in)	53.1 mm (2.1 in)	14 years	36 of 100 (Notable)
20 June 1977	Tataira, BR	daily rain	56.3 mm (2.2 in)	31.5 mm (1.2 in)	42 years	35 of 100 (Notable)
20 June 1977	Batalha, BR	daily rain	46.8 mm (1.8 in)	20.4 mm (0.8 in)	39 years	34 of 100 (Routine)

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 1977

Records set or tied on this calendar date in each year from 1800 to 1977. 1977 had 453 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 1977-06-20: 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).