Weather Records on 20 June 1999

906 weather records were set or tied worldwide on 20 June 1999. Highest significance: Poset, RU.

Key Facts for 20 June 1999

On 20 June 1999, 906 weather records were set or tied at long-record stations worldwide.
239 were record highs and 416 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 16 monthly and 888 daily.
Poset set a daily record precipitation of 91.0 mm (3.6 in) on 20 June 1999.
Across 158 earlier years (1800 to 2026) the same calendar date averaged 455 records.

Record Map

906 stations

906 station records on 20 June 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 June 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Poset	Russia	Record daily precipitation	91.0 mm (3.6 in)	62 of 100 (Major)
Fossil	United States	Record daily precipitation	29.5 mm (1.2 in)	54 of 100 (Notable)
Nuuk	Greenland [Denmark]	Record daily precipitation	98.0 mm (3.9 in)	52 of 100 (Notable)
Sandy Hook	United States	Record low minimum temperature	10.0 C (50.0 F)	51 of 100 (Notable)
Samnanger	Norway	Record daily precipitation	88.3 mm (3.5 in)	50 of 100 (Notable)
Frontera Amatenango	Mexico	Record daily precipitation	86.9 mm (3.4 in)	49 of 100 (Notable)
Elkhorn	United States	Record low minimum temperature	8.3 C (46.9 F)	47 of 100 (Notable)
Southport 5 N	United States	Record low maximum temperature	21.1 C (70.0 F)	46 of 100 (Notable)
Sonora	United States	Record daily precipitation	28.4 mm (1.1 in)	46 of 100 (Notable)
Telegraph	United States	Record daily precipitation	85.3 mm (3.4 in)	46 of 100 (Notable)
Vernon	United States	Record daily precipitation	55.9 mm (2.2 in)	45 of 100 (Notable)
Myklebust I Breim	Norway	Record daily precipitation	28.0 mm (1.1 in)	44 of 100 (Notable)
Columbus	United States	Record low maximum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Simon Bolivar	Mexico	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Garnett 1 E	United States	Record low maximum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Cape May 2 NW	United States	Record low maximum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Mays Landing 1 W	United States	Record daily precipitation	58.7 mm (2.3 in)	41 of 100 (Notable)
El Alto Intl	Bolivia	Record low minimum temperature	-12.5 C (9.5 F)	40 of 100 (Notable)
Ahmadabad	India	Record daily precipitation	80.0 mm (3.1 in)	40 of 100 (Notable)
Sedan	United States	Record low maximum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Carlyle 13 NW	United States	Record daily precipitation	57.7 mm (2.3 in)	40 of 100 (Notable)
Fairbury 7S	United States	Record low maximum temperature	19.4 C (66.9 F)	40 of 100 (Notable)
Elephant Butte Dam	United States	Record low maximum temperature	27.2 C (81.0 F)	40 of 100 (Notable)
Nhill	Australia	Record high maximum temperature	17.6 C (63.7 F)	39 of 100 (Notable)
Irtyshsk	Kazakhstan	Record daily precipitation	33.6 mm (1.3 in)	39 of 100 (Notable)
Howard 2SE	United States	Record low maximum temperature	20.0 C (68.0 F)	39 of 100 (Notable)
Rockville 1 NE	United States	Record low maximum temperature	17.8 C (64.0 F)	39 of 100 (Notable)
Newkirk 5NE	United States	Record low maximum temperature	21.1 C (70.0 F)	39 of 100 (Notable)
Neosho	United States	Record low maximum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
Jefferson 2 E	United States	Record low minimum temperature	5.0 C (41.0 F)	38 of 100 (Notable)
Monroe 2 SE	United States	Record low maximum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Darlington	United States	Record low maximum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Encinal	United States	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Florence	United States	Record high minimum temperature	27.8 C (82.0 F)	37 of 100 (Notable)
Wellington	United States	Record low maximum temperature	20.0 C (68.0 F)	37 of 100 (Notable)
Little Mtn	United States	Record low maximum temperature	19.4 C (66.9 F)	37 of 100 (Notable)
Junction 4SSW	United States	Record low maximum temperature	22.8 C (73.0 F)	37 of 100 (Notable)
Kwajalein	Marshall Islands	Record daily precipitation	91.4 mm (3.6 in)	36 of 100 (Notable)
Pamjatnaja	Russia	Record daily precipitation	27.6 mm (1.1 in)	36 of 100 (Notable)
Searcy	United States	Record low minimum temperature	12.2 C (54.0 F)	36 of 100 (Notable)
Lamar 7N	United States	Record low maximum temperature	20.6 C (69.1 F)	36 of 100 (Notable)
Chandler	United States	Record low maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Claremore 2 ENE	United States	Record low maximum temperature	23.3 C (73.9 F)	36 of 100 (Notable)
Spavinaw	United States	Record daily precipitation	96.5 mm (3.8 in)	36 of 100 (Notable)
Sonora	United States	Record low maximum temperature	24.4 C (75.9 F)	36 of 100 (Notable)
Bremerton	United States	Record low maximum temperature	13.3 C (55.9 F)	36 of 100 (Notable)
Abilene Rgnl AP	United States	Record daily precipitation	37.3 mm (1.5 in)	36 of 100 (Notable)
Stuttgart-Stadt	Germany	Record low minimum temperature	6.5 C (43.7 F)	35 of 100 (Notable)
Ingenio Catmis	Mexico	Record low minimum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Makuschino	Russia	Record daily precipitation	27.5 mm (1.1 in)	35 of 100 (Notable)
Laurel 3 W	United States	Record low maximum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Nevada Wtp	United States	Record low maximum temperature	21.1 C (70.0 F)	35 of 100 (Notable)
Jayton	United States	Record daily precipitation	45.7 mm (1.8 in)	35 of 100 (Notable)
Winston Salem Reynolds AP	United States	Record low maximum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Deeside	Australia	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Marsliden	Sweden	Record daily precipitation	26.9 mm (1.1 in)	34 of 100 (Routine)
Arjeplog A	Sweden	Record daily precipitation	29.3 mm (1.2 in)	34 of 100 (Routine)
Lockwood	United States	Record low maximum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Enid	United States	Record low maximum temperature	26.1 C (79.0 F)	34 of 100 (Routine)
Riomedina	United States	Record daily precipitation	71.1 mm (2.8 in)	34 of 100 (Routine)

Counts by Type and Timescale

906 records

Records set or tied on 20 June 1999 by type: Highest daily maximum 111, Lowest daily maximum 260, Highest daily minimum 128, Lowest daily minimum 156, Heaviest daily rainfall 250, Deepest snow cover 1.

Records on 20 June 1999 by type
Record type	Records
Highest daily maximum	111
Lowest daily maximum	260
Highest daily minimum	128
Lowest daily minimum	156
Heaviest daily rainfall	250
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 20 June 1999 by timescale: all-time 2, monthly 16, daily 888.

How Much Records Were Beaten By

729 broken records

Margins by which the 729 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 83.1. Ties are not counted.

Top 20 by Significance

20 June 1999

Top 20 records on 20 June 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 June 1999	Poset, RU	daily rain	91.0 mm (3.6 in)	76.4 mm (3.0 in)	56 years	62 of 100 (Major)
20 June 1999	Fossil, US	daily rain	29.5 mm (1.2 in)	19.8 mm (0.8 in)	61 years	54 of 100 (Notable)
20 June 1999	Nuuk, GL	daily rain	98.0 mm (3.9 in)	83.1 mm (3.3 in)	28 years	52 of 100 (Notable)
20 June 1999	Sandy Hook, US	daily low min	10.0 C (50.0 F)	3.3 C (5.9 F)	119 years	51 of 100 (Notable)
20 June 1999	Samnanger, NO	daily rain	88.3 mm (3.5 in)	28.3 mm (1.1 in)	69 years	50 of 100 (Notable)
20 June 1999	Frontera Amatenango, MX	daily rain	86.9 mm (3.4 in)	67.1 mm (2.6 in)	22 years	49 of 100 (Notable)
20 June 1999	Elkhorn, US	daily low min	8.3 C (46.9 F)	2.3 C (4.1 F)	100 years	47 of 100 (Notable)
20 June 1999	Southport 5 N, US	daily low max	21.1 C (70.0 F)	3.9 C (7.0 F)	72 years	46 of 100 (Notable)
20 June 1999	Sonora, US	daily rain	28.4 mm (1.1 in)	13.9 mm (0.5 in)	94 years	46 of 100 (Notable)
20 June 1999	Telegraph, US	daily rain	85.3 mm (3.4 in)	70.6 mm (2.8 in)	4 years	46 of 100 (Notable)
20 June 1999	Vernon, US	daily rain	55.9 mm (2.2 in)	40.4 mm (1.6 in)	60 years	45 of 100 (Notable)
20 June 1999	Myklebust I Breim, NO	daily rain	28.0 mm (1.1 in)	9.0 mm (0.35 in)	73 years	44 of 100 (Notable)
20 June 1999	Columbus, US	daily low max	19.4 C (66.9 F)	3.9 C (7.0 F)	81 years	44 of 100 (Notable)
20 June 1999	Simon Bolivar, MX	daily rain	30.0 mm (1.2 in)	25.2 mm (1.0 in)	20 years	41 of 100 (Notable)
20 June 1999	Garnett 1 E, US	daily low max	20.6 C (69.1 F)	2.7 C (4.9 F)	86 years	41 of 100 (Notable)
20 June 1999	Cape May 2 NW, US	daily low max	17.8 C (64.0 F)	1.1 C (2.0 F)	97 years	41 of 100 (Notable)
20 June 1999	Mays Landing 1 W, US	daily rain	58.7 mm (2.3 in)	34.6 mm (1.4 in)	17 years	41 of 100 (Notable)
20 June 1999	El Alto Intl, BO	all-time low min	-12.5 C (9.5 F)	2.3 C (4.1 F)	17 years	40 of 100 (Notable)
20 June 1999	Ahmadabad, IN	daily rain	80.0 mm (3.1 in)	31.0 mm (1.2 in)	72 years	40 of 100 (Notable)
20 June 1999	Sedan, US	daily low max	20.6 C (69.1 F)	1.6 C (2.9 F)	86 years	40 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 1999

Records set or tied on this calendar date in each year from 1800 to 1999. 1999 had 906 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 1999-06-20: 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 20	700
20 to 40	22
40 to 60	3
60 to 80	3
80 to 100	1