Weather Records on 20 June 2018

635 weather records were set or tied worldwide on 20 June 2018. Highest significance: Mc Cook, US.

Key Facts for 20 June 2018

On 20 June 2018, 635 weather records were set or tied at long-record stations worldwide.
327 were record highs and 67 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 23 monthly and 608 daily.
Mc Cook set a daily record precipitation of 94.2 mm (3.7 in) on 20 June 2018.
Across 158 earlier years (1800 to 2026) the same calendar date averaged 457 records.

Record Map

635 stations

635 station records on 20 June 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 June 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mc Cook	United States	Record daily precipitation	94.2 mm (3.7 in)	72 of 100 (Major)
Scott City	United States	Record daily precipitation	185.2 mm (7.3 in)	66 of 100 (Major)
Grass Range	United States	Record daily precipitation	54.6 mm (2.1 in)	66 of 100 (Major)
Amasia	Armenia	Record daily precipitation	59.7 mm (2.4 in)	65 of 100 (Major)
Santa Rosa 3 WNW	United States	Record daily precipitation	219.7 mm (8.6 in)	65 of 100 (Major)
Rock Is L&D 15	United States	Record daily precipitation	94.0 mm (3.7 in)	64 of 100 (Major)
Rockport	United States	Record daily precipitation	177.8 mm (7.0 in)	62 of 100 (Major)
John H Kerr Dam	United States	Record daily precipitation	74.2 mm (2.9 in)	62 of 100 (Major)
Collyer 10 S	United States	Record daily precipitation	108.2 mm (4.3 in)	61 of 100 (Major)
N'Guigni	Niger	Record daily precipitation	50.0 mm (2.0 in)	58 of 100 (Notable)
Carroll	United States	Record daily precipitation	82.6 mm (3.3 in)	58 of 100 (Notable)
Richfield	United States	Record daily precipitation	64.8 mm (2.6 in)	58 of 100 (Notable)
Belle Fourche	United States	Record daily precipitation	50.8 mm (2.0 in)	58 of 100 (Notable)
Kuching	Malaysia	Record daily precipitation	80.8 mm (3.2 in)	56 of 100 (Notable)
Fairbury 7S	United States	Record daily precipitation	87.4 mm (3.4 in)	56 of 100 (Notable)
Toketee Falls	United States	Record daily precipitation	50.0 mm (2.0 in)	56 of 100 (Notable)
Harlingen	United States	Record daily precipitation	149.6 mm (5.9 in)	56 of 100 (Notable)
Sines Deep Creek	United States	Record high minimum temperature	21.1 C (70.0 F)	55 of 100 (Notable)
Raymondville	United States	Record daily precipitation	76.2 mm (3.0 in)	55 of 100 (Notable)
Sarh	Chad	Record low minimum temperature	14.5 C (58.1 F)	54 of 100 (Notable)
Atwood 8SSE	United States	Record daily precipitation	63.5 mm (2.5 in)	54 of 100 (Notable)
Lakin	United States	Record daily precipitation	40.6 mm (1.6 in)	54 of 100 (Notable)
Lovewell Dam	United States	Record daily precipitation	99.8 mm (3.9 in)	54 of 100 (Notable)
Port Mansfield	United States	Record daily precipitation	177.5 mm (7.0 in)	54 of 100 (Notable)
Hays	United States	Record daily precipitation	63.5 mm (2.5 in)	53 of 100 (Notable)
Harlan Co Lake	United States	Record daily precipitation	82.0 mm (3.2 in)	52 of 100 (Notable)
Craig	United States	Record high maximum temperature	26.7 C (80.1 F)	52 of 100 (Notable)
Cawker City	United States	Record daily precipitation	98.3 mm (3.9 in)	51 of 100 (Notable)
White City	United States	Record daily precipitation	101.9 mm (4.0 in)	51 of 100 (Notable)
Ndjamena	Chad	Record low minimum temperature	15.0 C (59.0 F)	50 of 100 (Notable)
Enontekio Kilpisjarvi Kylakesk	Finland	Record daily precipitation	46.8 mm (1.8 in)	50 of 100 (Notable)
Lebanon	United States	Record daily precipitation	83.8 mm (3.3 in)	50 of 100 (Notable)
Lewiston	United States	Record daily precipitation	59.9 mm (2.4 in)	49 of 100 (Notable)
Gonzales 2S	United States	Record daily precipitation	54.6 mm (2.1 in)	49 of 100 (Notable)
Aleksandrovskoe	Russia	Record daily precipitation	42.8 mm (1.7 in)	48 of 100 (Notable)
Holdrege	United States	Record daily precipitation	65.5 mm (2.6 in)	48 of 100 (Notable)
Hallettsville 2 N	United States	Record daily precipitation	70.6 mm (2.8 in)	48 of 100 (Notable)
Van Wert 1 S	United States	Record daily precipitation	39.4 mm (1.6 in)	47 of 100 (Notable)
Interior 3 NE	United States	Record daily precipitation	51.6 mm (2.0 in)	47 of 100 (Notable)
Spearfish	United States	Record daily precipitation	46.0 mm (1.8 in)	47 of 100 (Notable)
Hays 1 S	United States	Record daily precipitation	58.9 mm (2.3 in)	46 of 100 (Notable)
Hallettsville 2 N	United States	Record low maximum temperature	25.0 C (77.0 F)	46 of 100 (Notable)
Cuguevka	Russia	Record daily precipitation	32.0 mm (1.3 in)	45 of 100 (Notable)
Sugar Land	United States	Record daily precipitation	58.7 mm (2.3 in)	45 of 100 (Notable)
Sihccajavri	Norway	Record daily precipitation	46.5 mm (1.8 in)	44 of 100 (Notable)
Atwood	United States	Record daily precipitation	47.0 mm (1.9 in)	44 of 100 (Notable)
Healy	United States	Record daily precipitation	71.9 mm (2.8 in)	44 of 100 (Notable)
Trenton Dam 1N	United States	Record daily precipitation	47.2 mm (1.9 in)	44 of 100 (Notable)
Utica	United States	Record daily precipitation	58.4 mm (2.3 in)	44 of 100 (Notable)
Wilsonville	United States	Record daily precipitation	49.3 mm (1.9 in)	44 of 100 (Notable)
Maurine 12SW	United States	Record daily precipitation	54.6 mm (2.1 in)	44 of 100 (Notable)
Ellis	United States	Record daily precipitation	53.3 mm (2.1 in)	43 of 100 (Notable)
Wasta	United States	Record daily precipitation	55.9 mm (2.2 in)	43 of 100 (Notable)
Welder Wildlife Foundation	United States	Record daily precipitation	109.7 mm (4.3 in)	43 of 100 (Notable)
Yoakum	United States	Record daily precipitation	44.7 mm (1.8 in)	43 of 100 (Notable)
Covert	United States	Record daily precipitation	61.7 mm (2.4 in)	42 of 100 (Notable)
Romney 1 SW	United States	Record high minimum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Blue Mountain Spring	United States	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Laryak	Russia	Record daily precipitation	55.7 mm (2.2 in)	41 of 100 (Notable)
Bruning	United States	Record daily precipitation	44.2 mm (1.7 in)	41 of 100 (Notable)

Counts by Type and Timescale

635 records

Records set or tied on 20 June 2018 by type: Highest daily maximum 79, Lowest daily maximum 41, Highest daily minimum 248, Lowest daily minimum 26, Heaviest daily rainfall 241.

Records on 20 June 2018 by type
Record type	Records
Highest daily maximum	79
Lowest daily maximum	41
Highest daily minimum	248
Lowest daily minimum	26
Heaviest daily rainfall	241
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 June 2018 by timescale: all-time 4, monthly 23, daily 608.

How Much Records Were Beaten By

464 broken records

Margins by which the 464 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 87.4. Ties are not counted.

Top 20 by Significance

20 June 2018

Top 20 records on 20 June 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 June 2018	Mc Cook, US	daily rain	94.2 mm (3.7 in)	51.5 mm (2.0 in)	79 years	72 of 100 (Major)
20 June 2018	Scott City, US	all-time rain	185.2 mm (7.3 in)	21.1 mm (0.8 in)	67 years	66 of 100 (Major)
20 June 2018	Grass Range, US	daily rain	54.6 mm (2.1 in)	34.3 mm (1.4 in)	71 years	66 of 100 (Major)
20 June 2018	Amasia, AM	monthly rain	59.7 mm (2.4 in)	16.6 mm (0.7 in)	71 years	65 of 100 (Major)
20 June 2018	Santa Rosa 3 WNW, US	all-time rain	219.7 mm (8.6 in)	66.3 mm (2.6 in)	7 years	65 of 100 (Major)
20 June 2018	Rock Is L&D 15, US	daily rain	94.0 mm (3.7 in)	43.2 mm (1.7 in)	148 years	64 of 100 (Major)
20 June 2018	Rockport, US	monthly rain	177.8 mm (7.0 in)	61.5 mm (2.4 in)	57 years	62 of 100 (Major)
20 June 2018	John H Kerr Dam, US	daily rain	74.2 mm (2.9 in)	46.8 mm (1.8 in)	68 years	62 of 100 (Major)
20 June 2018	Collyer 10 S, US	daily rain	108.2 mm (4.3 in)	87.4 mm (3.4 in)	47 years	61 of 100 (Major)
20 June 2018	N'Guigni, NE	daily rain	50.0 mm (2.0 in)	49.0 mm (1.9 in)	33 years	58 of 100 (Notable)
20 June 2018	Carroll, US	daily rain	82.6 mm (3.3 in)	38.4 mm (1.5 in)	76 years	58 of 100 (Notable)
20 June 2018	Richfield, US	daily rain	64.8 mm (2.6 in)	24.4 mm (1.0 in)	95 years	58 of 100 (Notable)
20 June 2018	Belle Fourche, US	daily rain	50.8 mm (2.0 in)	29.0 mm (1.1 in)	64 years	58 of 100 (Notable)
20 June 2018	Kuching, MY	daily rain	80.8 mm (3.2 in)	53.9 mm (2.1 in)	60 years	56 of 100 (Notable)
20 June 2018	Fairbury 7S, US	daily rain	87.4 mm (3.4 in)	39.1 mm (1.5 in)	76 years	56 of 100 (Notable)
20 June 2018	Toketee Falls, US	daily rain	50.0 mm (2.0 in)	42.6 mm (1.7 in)	33 years	56 of 100 (Notable)
20 June 2018	Harlingen, US	monthly rain	149.6 mm (5.9 in)	22.3 mm (0.9 in)	79 years	56 of 100 (Notable)
20 June 2018	Sines Deep Creek, US	all-time high min	21.1 C (70.0 F)	1.1 C (2.0 F)	82 years	55 of 100 (Notable)
20 June 2018	Raymondville, US	daily rain	76.2 mm (3.0 in)	26.2 mm (1.0 in)	105 years	55 of 100 (Notable)
20 June 2018	Sarh, TD	daily low min	14.5 C (58.1 F)	5.2 C (9.4 F)	55 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

1800 to 2018

Records set or tied on this calendar date in each year from 1800 to 2018. 2018 had 635 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 2018-06-20: 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).

Histogram of margins by which records were beaten on 20 June 2018
Margin	Records
0 to 20	407
20 to 40	36
40 to 60	16
60 to 80	4
80 to 100	1