Weather Records on 30 June 1986

745 weather records were set or tied worldwide on 30 June 1986. Highest significance: Undoolya, AU.

Key Facts for 30 June 1986

On 30 June 1986, 745 weather records were set or tied at long-record stations worldwide.
237 were record highs and 209 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 29 monthly and 713 daily.
Undoolya set a monthly record daily precipitation of 91.4 mm (3.6 in) on 30 June 1986.
Across 160 earlier years (1826 to 2026) the same calendar date averaged 448 records.

Record Map

745 stations

745 station records on 30 June 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 June 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Undoolya	Australia	Record daily precipitation	91.4 mm (3.6 in)	82 of 100 (Exceptional)
Fairmont	United States	Record daily precipitation	141.0 mm (5.6 in)	81 of 100 (Exceptional)
Moola Bulla	Australia	Record daily precipitation	35.4 mm (1.4 in)	72 of 100 (Major)
Newport	United States	Record daily precipitation	88.1 mm (3.5 in)	72 of 100 (Major)
Gibb River	Australia	Record daily precipitation	70.4 mm (2.8 in)	64 of 100 (Major)
York	United States	Record daily precipitation	156.0 mm (6.1 in)	62 of 100 (Major)
Sturt Creek	Australia	Record daily precipitation	48.0 mm (1.9 in)	61 of 100 (Major)
Aileron	Australia	Record daily precipitation	77.0 mm (3.0 in)	61 of 100 (Major)
Todd River	Australia	Record daily precipitation	98.0 mm (3.9 in)	61 of 100 (Major)
Lupi Upper 442	United States	Record daily precipitation	396.2 mm (15.6 in)	57 of 100 (Notable)
Hillview	Australia	Record daily precipitation	31.0 mm (1.2 in)	56 of 100 (Notable)
Jouerdine South	Australia	Record daily precipitation	45.0 mm (1.8 in)	55 of 100 (Notable)
Albion	United States	Record daily precipitation	73.2 mm (2.9 in)	55 of 100 (Notable)
Chambers	United States	Record daily precipitation	72.6 mm (2.9 in)	55 of 100 (Notable)
Bruce	Australia	Record daily precipitation	34.0 mm (1.3 in)	54 of 100 (Notable)
Areyonga	Australia	Record daily precipitation	64.2 mm (2.5 in)	53 of 100 (Notable)
Zacoalco de Torres	Mexico	Record daily precipitation	39.9 mm (1.6 in)	53 of 100 (Notable)
Guthrie Ctr	United States	Record daily precipitation	95.8 mm (3.8 in)	53 of 100 (Notable)
Seward	United States	Record daily precipitation	58.2 mm (2.3 in)	52 of 100 (Notable)
Valparaiso	United States	Record daily precipitation	84.6 mm (3.3 in)	52 of 100 (Notable)
Western 2W	United States	Record daily precipitation	119.4 mm (4.7 in)	52 of 100 (Notable)
Bond Springs Homestead	Australia	Record daily precipitation	56.0 mm (2.2 in)	50 of 100 (Notable)
Manhattan	United States	Record daily precipitation	100.1 mm (3.9 in)	50 of 100 (Notable)
Marysville	United States	Record daily precipitation	85.6 mm (3.4 in)	50 of 100 (Notable)
David City 4E	United States	Record daily precipitation	111.0 mm (4.4 in)	50 of 100 (Notable)
Grundy Ctr	United States	Record daily precipitation	74.7 mm (2.9 in)	49 of 100 (Notable)
Perry	United States	Record daily precipitation	108.2 mm (4.3 in)	49 of 100 (Notable)
Osceola	United States	Record daily precipitation	98.6 mm (3.9 in)	49 of 100 (Notable)
Goyders Lagoon (Clifton Hills)	Australia	Record daily precipitation	36.6 mm (1.4 in)	47 of 100 (Notable)
Donaldsonville 4 SW	United States	Record daily precipitation	53.8 mm (2.1 in)	47 of 100 (Notable)
Yuendumu	Australia	Record daily precipitation	51.6 mm (2.0 in)	46 of 100 (Notable)
Bradshaw	United States	Record daily precipitation	59.9 mm (2.4 in)	46 of 100 (Notable)
Custer	United States	Record daily precipitation	45.7 mm (1.8 in)	46 of 100 (Notable)
Lincoln UNIV Pwr Plt	United States	Record daily precipitation	71.1 mm (2.8 in)	46 of 100 (Notable)
Alice Springs Airport	Australia	Record daily precipitation	58.2 mm (2.3 in)	45 of 100 (Notable)
Bow River	Australia	Record daily precipitation	28.0 mm (1.1 in)	44 of 100 (Notable)
Delphi 2 N	United States	Record daily precipitation	52.6 mm (2.1 in)	44 of 100 (Notable)
Toledo 3N	United States	Record daily precipitation	85.9 mm (3.4 in)	44 of 100 (Notable)
Clay Ctr	United States	Record daily precipitation	47.0 mm (1.9 in)	44 of 100 (Notable)
Innamincka Station	Australia	Record daily precipitation	26.6 mm (1.0 in)	43 of 100 (Notable)
Blue Rapids	United States	Record daily precipitation	95.0 mm (3.7 in)	43 of 100 (Notable)
Centralia	United States	Record daily precipitation	52.6 mm (2.1 in)	43 of 100 (Notable)
Frankfort	United States	Record daily precipitation	57.2 mm (2.3 in)	43 of 100 (Notable)
Alice Downs	Australia	Record daily precipitation	57.0 mm (2.2 in)	42 of 100 (Notable)
Oktyabr Skoye	Russia	Record daily precipitation	33.8 mm (1.3 in)	42 of 100 (Notable)
Malcolm	United States	Record daily precipitation	86.9 mm (3.4 in)	42 of 100 (Notable)
Rockhampton Downs	Australia	Record daily precipitation	27.0 mm (1.1 in)	41 of 100 (Notable)
Slavjansk-Na-Kubani	Russia	Record daily precipitation	62.3 mm (2.5 in)	41 of 100 (Notable)
Donaldsonville 4 SW	United States	Record low maximum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Henbury	Australia	Record daily precipitation	35.0 mm (1.4 in)	40 of 100 (Notable)
Garruchos	Brazil	Record daily precipitation	105.0 mm (4.1 in)	40 of 100 (Notable)
Galeana	Mexico	Record daily precipitation	25.9 mm (1.0 in)	40 of 100 (Notable)
Yuma Citrus STN	United States	Record low maximum temperature	28.9 C (84.0 F)	40 of 100 (Notable)
Yuma Valley	United States	Record low maximum temperature	28.3 C (82.9 F)	40 of 100 (Notable)
Lake City	United States	Record low maximum temperature	15.0 C (59.0 F)	40 of 100 (Notable)
Virginia	United States	Record daily precipitation	55.4 mm (2.2 in)	40 of 100 (Notable)
Narra Tarra	Australia	Record daily precipitation	28.6 mm (1.1 in)	38 of 100 (Notable)
Nueva Casas Grandes	Mexico	Record daily precipitation	27.8 mm (1.1 in)	38 of 100 (Notable)
Nuevo Casas Grandes (Dge)	Mexico	Record daily precipitation	27.7 mm (1.1 in)	38 of 100 (Notable)
Jefferson	United States	Record daily precipitation	140.0 mm (5.5 in)	38 of 100 (Notable)

Counts by Type and Timescale

745 records

Records set or tied on 30 June 1986 by type: Highest daily maximum 93, Lowest daily maximum 136, Highest daily minimum 144, Lowest daily minimum 73, Heaviest daily rainfall 299.

Records on 30 June 1986 by type
Record type	Records
Highest daily maximum	93
Lowest daily maximum	136
Highest daily minimum	144
Lowest daily minimum	73
Heaviest daily rainfall	299
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 June 1986 by timescale: all-time 3, monthly 29, daily 713.

How Much Records Were Beaten By

616 broken records

Margins by which the 616 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 177.8. Ties are not counted.

Top 20 by Significance

30 June 1986

Top 20 records on 30 June 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 June 1986	Undoolya, AU	monthly rain	91.4 mm (3.6 in)	53.3 mm (2.1 in)	81 years	82 of 100 (Exceptional)
30 June 1986	Fairmont, US	monthly rain	141.0 mm (5.6 in)	50.3 mm (2.0 in)	84 years	81 of 100 (Exceptional)
30 June 1986	Moola Bulla, AU	daily rain	35.4 mm (1.4 in)	35.4 mm (1.4 in)	81 years	72 of 100 (Major)
30 June 1986	Newport, US	daily rain	88.1 mm (3.5 in)	67.8 mm (2.7 in)	77 years	72 of 100 (Major)
30 June 1986	Gibb River, AU	daily rain	70.4 mm (2.8 in)	70.4 mm (2.8 in)	64 years	64 of 100 (Major)
30 June 1986	York, US	monthly rain	156.0 mm (6.1 in)	45.5 mm (1.8 in)	34 years	62 of 100 (Major)
30 June 1986	Sturt Creek, AU	daily rain	48.0 mm (1.9 in)	39.1 mm (1.5 in)	79 years	61 of 100 (Major)
30 June 1986	Aileron, AU	monthly rain	77.0 mm (3.0 in)	50.8 mm (2.0 in)	29 years	61 of 100 (Major)
30 June 1986	Todd River, AU	monthly rain	98.0 mm (3.9 in)	68.3 mm (2.7 in)	29 years	61 of 100 (Major)
30 June 1986	Lupi Upper 442, US	monthly rain	396.2 mm (15.6 in)	177.8 mm (7.0 in)	4 years	57 of 100 (Notable)
30 June 1986	Hillview, AU	daily rain	31.0 mm (1.2 in)	24.9 mm (1.0 in)	44 years	56 of 100 (Notable)
30 June 1986	Jouerdine South, AU	daily rain	45.0 mm (1.8 in)	32.0 mm (1.3 in)	36 years	55 of 100 (Notable)
30 June 1986	Albion, US	daily rain	73.2 mm (2.9 in)	29.5 mm (1.2 in)	88 years	55 of 100 (Notable)
30 June 1986	Chambers, US	daily rain	72.6 mm (2.9 in)	52.5 mm (2.1 in)	27 years	55 of 100 (Notable)
30 June 1986	Bruce, AU	daily rain	34.0 mm (1.3 in)	26.9 mm (1.1 in)	21 years	54 of 100 (Notable)
30 June 1986	Areyonga, AU	monthly rain	64.2 mm (2.5 in)	39.2 mm (1.5 in)	0 years	53 of 100 (Notable)
30 June 1986	Zacoalco de Torres, MX	daily rain	39.9 mm (1.6 in)	39.9 mm (1.6 in)	40 years	53 of 100 (Notable)
30 June 1986	Guthrie Ctr, US	daily rain	95.8 mm (3.8 in)	63.8 mm (2.5 in)	15 years	53 of 100 (Notable)
30 June 1986	Seward, US	daily rain	58.2 mm (2.3 in)	27.7 mm (1.1 in)	80 years	52 of 100 (Notable)
30 June 1986	Valparaiso, US	daily rain	84.6 mm (3.3 in)	58.9 mm (2.3 in)	27 years	52 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

1826 to 1986

Records set or tied on this calendar date in each year from 1826 to 1986. 1986 had 745 records.

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

Records on 06-30 in each year
Year	Records
1826	1
1832	1
1835	2
1843	2
1846	1
1848	2
1849	1
1853	1
1855	1
1857	1
1860	1
1863	1
1865	1
1869	1
1871	1
1873	1
1876	1
1879	2
1882	2
1883	3
1885	4
1886	1
1887	2
1888	2
1889	1
1890	3
1891	2
1892	1
1894	1
1895	1
1896	2
1897	6
1898	3
1899	4
1900	5
1901	9
1902	10
1903	8
1904	20
1905	23
1906	20
1907	12
1908	17
1909	39
1910	57
1911	12
1912	32
1913	99
1914	97
1915	40
1916	66
1917	39
1918	54
1919	72
1920	319
1921	121
1922	133
1923	309
1924	194
1925	113
1926	65
1927	240
1928	137
1929	213
1930	168
1931	774
1932	154
1933	571
1934	331
1935	347
1936	620
1937	458
1938	330
1939	438
1940	346
1941	341
1942	408
1943	790
1944	272
1945	671
1946	631
1947	487
1948	340
1949	403
1950	494
1951	517
1952	533
1953	404
1954	426
1955	432
1956	409
1957	592
1958	423
1959	948
1960	270
1961	351
1962	375
1963	560
1964	434
1965	240
1966	379
1967	414
1968	752
1969	459
1970	730
1971	459
1972	558
1973	623
1974	643
1975	414
1976	607
1977	662
1978	721
1979	601
1980	935
1981	838
1982	1,230
1983	752
1984	722
1985	829
1986	745
1987	1,044
1988	1,216
1989	953
1990	1,191
1991	1,129
1992	1,670
1993	711
1994	951
1995	1,354
1996	889
1997	938
1998	1,714
1999	910
2000	861
2001	778
2002	904
2003	896
2004	998
2005	1,526
2006	723
2007	736
2008	852
2009	1,052
2010	1,069
2011	1,057
2012	1,416
2013	963
2014	496
2015	1,018
2016	371
2017	642
2018	625
2019	1,042
2020	1,151
2021	1,442
2022	709
2023	531
2024	1,004
2025	858
2026	999

Download the Data

Data for records on 1986-06-30: 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 25	552
25 to 50	44
50 to 75	16
75 to 100	3
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	1