Weather Records on 30 June 2018

625 weather records were set or tied worldwide on 30 June 2018. Highest significance: Kiev, UA.

Key Facts for 30 June 2018

On 30 June 2018, 625 weather records were set or tied at long-record stations worldwide.
485 were record highs and 57 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 58 monthly and 564 daily.
Kiev set a daily record precipitation of 68.1 mm (2.7 in) on 30 June 2018.
Across 160 earlier years (1826 to 2026) the same calendar date averaged 449 records.

Record Map

625 stations

625 station records on 30 June 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 June 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kiev	Ukraine	Record daily precipitation	68.1 mm (2.7 in)	80 of 100 (Exceptional)
Hill City Muni AP	United States	Record daily precipitation	158.2 mm (6.2 in)	80 of 100 (Exceptional)
Nizhnyaya Pesha	Russia	Record daily precipitation	33.0 mm (1.3 in)	67 of 100 (Major)
Briceni	Ukraine	Record daily precipitation	67.1 mm (2.6 in)	65 of 100 (Major)
Raznavolok	Russia	Record daily precipitation	52.1 mm (2.1 in)	63 of 100 (Major)
Zhytomyr	Ukraine	Record daily precipitation	42.9 mm (1.7 in)	62 of 100 (Major)
Pavillion	United States	Record daily precipitation	35.8 mm (1.4 in)	61 of 100 (Major)
Mezen	Russia	Record daily precipitation	39.1 mm (1.5 in)	60 of 100 (Major)
Novi Sad	Serbia	Record daily precipitation	116.1 mm (4.6 in)	59 of 100 (Notable)
Bethel AP	United States	Record daily precipitation	27.7 mm (1.1 in)	52 of 100 (Notable)
Manistee 3SE	United States	Record high minimum temperature	25.0 C (77.0 F)	51 of 100 (Notable)
Newberry-Luce Co Rd Commission	United States	Record high minimum temperature	21.1 C (70.0 F)	51 of 100 (Notable)
Smolensk	Russia	Record daily precipitation	54.2 mm (2.1 in)	49 of 100 (Notable)
Laghouat	Algeria	Record high minimum temperature	28.5 C (83.3 F)	47 of 100 (Notable)
Varfu Omul	Romania	Record daily precipitation	74.4 mm (2.9 in)	47 of 100 (Notable)
Mohyliv-Podilskyi	Ukraine	Record daily precipitation	51.1 mm (2.0 in)	47 of 100 (Notable)
Zhizhgin Mayak	Russia	Record daily precipitation	32.1 mm (1.3 in)	46 of 100 (Notable)
Cuero	United States	Record high minimum temperature	26.7 C (80.1 F)	44 of 100 (Notable)
Newton	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Waupaca	United States	Record high minimum temperature	23.9 C (75.0 F)	43 of 100 (Notable)
Dzerzhinskoe	Russia	Record daily precipitation	45.0 mm (1.8 in)	42 of 100 (Notable)
Irkutsk	Russia	Record high minimum temperature	19.9 C (67.8 F)	42 of 100 (Notable)
Elgin Water	United States	Record high minimum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Charlevoix	United States	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)
Beaumont City	United States	Record high minimum temperature	26.1 C (79.0 F)	42 of 100 (Notable)
Sulphur Springs	United States	Record high minimum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Willows 6 W	United States	Record high minimum temperature	26.7 C (80.1 F)	41 of 100 (Notable)
Chapman	United States	Record high minimum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
El Dorado	United States	Record high minimum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Sedalia Wtp	United States	Record high minimum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Tbilisi	Georgia	Record high maximum temperature	37.5 C (99.5 F)	40 of 100 (Notable)
Shawano 2SSW	United States	Record high minimum temperature	24.4 C (75.9 F)	40 of 100 (Notable)
Akhty	Russia	Record high maximum temperature	36.8 C (98.2 F)	39 of 100 (Notable)
Grayling	United States	Record high minimum temperature	23.9 C (75.0 F)	39 of 100 (Notable)
Shadzhatmaz	Russia	Record high minimum temperature	14.6 C (58.3 F)	38 of 100 (Notable)
Lake Park 3SSE	United States	Record high minimum temperature	24.4 C (75.9 F)	38 of 100 (Notable)
Shirakawa	Japan	Record high minimum temperature	23.1 C (73.6 F)	37 of 100 (Notable)
Minonk	United States	Record high minimum temperature	23.3 C (73.9 F)	37 of 100 (Notable)
Bergland Dam	United States	Record high minimum temperature	21.1 C (70.0 F)	37 of 100 (Notable)
Moline Quad City Intl AP	United States	Record high minimum temperature	26.1 C (79.0 F)	37 of 100 (Notable)
Burlington Muni AP	United States	Record high minimum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Kirksville Rgnl AP	United States	Record high minimum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Yan An	China	Record daily precipitation	40.9 mm (1.6 in)	36 of 100 (Notable)
Staritsa	Russia	Record daily precipitation	32.0 mm (1.3 in)	36 of 100 (Notable)
Vinnytsia	Ukraine	Record daily precipitation	75.9 mm (3.0 in)	36 of 100 (Notable)
Gull Lake Biological STN	United States	Record high minimum temperature	23.9 C (75.0 F)	36 of 100 (Notable)
Miami	United States	Record high minimum temperature	26.1 C (79.0 F)	36 of 100 (Notable)
Sault Ste Marie Sanderson Fld	United States	Record high minimum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Kjahta	Russia	Record high minimum temperature	19.2 C (66.6 F)	35 of 100 (Notable)
Elista	Russia	Record high maximum temperature	39.7 C (103.5 F)	35 of 100 (Notable)
Osceola	United States	Record high minimum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Junction 4SSW	United States	Record high minimum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Chicago Ohare Intl AP	United States	Record high minimum temperature	26.7 C (80.1 F)	35 of 100 (Notable)
Aikawa	Japan	Record high minimum temperature	22.6 C (72.7 F)	34 of 100 (Routine)
Katsuura	Japan	Record high minimum temperature	23.0 C (73.4 F)	34 of 100 (Routine)
Tuapse	Russia	Record high minimum temperature	24.5 C (76.1 F)	34 of 100 (Routine)
Conrad	United States	Record daily precipitation	74.9 mm (2.9 in)	34 of 100 (Routine)
Hastings Dam 2	United States	Record high maximum temperature	36.1 C (97.0 F)	34 of 100 (Routine)
A Coruna	Spain	Record daily precipitation	28.8 mm (1.1 in)	33 of 100 (Routine)
A Coruna/Alvedro	Spain	Record daily precipitation	46.6 mm (1.8 in)	33 of 100 (Routine)

Counts by Type and Timescale

625 records

Records set or tied on 30 June 2018 by type: Highest daily maximum 131, Lowest daily maximum 29, Highest daily minimum 354, Lowest daily minimum 28, Heaviest daily rainfall 83.

Records on 30 June 2018 by type
Record type	Records
Highest daily maximum	131
Lowest daily maximum	29
Highest daily minimum	354
Lowest daily minimum	28
Heaviest daily rainfall	83
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 June 2018 by timescale: all-time 3, monthly 58, daily 564.

How Much Records Were Beaten By

430 broken records

Margins by which the 430 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 50.5. Ties are not counted.

Top 20 by Significance

30 June 2018

Top 20 records on 30 June 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 June 2018	Kiev, UA	daily rain	68.1 mm (2.7 in)	41.3 mm (1.6 in)	121 years	80 of 100 (Exceptional)
30 June 2018	Hill City Muni AP, US	monthly rain	158.2 mm (6.2 in)	49.0 mm (1.9 in)	86 years	80 of 100 (Exceptional)
30 June 2018	Nizhnyaya Pesha, RU	daily rain	33.0 mm (1.3 in)	19.8 mm (0.8 in)	64 years	67 of 100 (Major)
30 June 2018	Briceni, UA	daily rain	67.1 mm (2.6 in)	50.5 mm (2.0 in)	60 years	65 of 100 (Major)
30 June 2018	Raznavolok, RU	daily rain	52.1 mm (2.1 in)	24.6 mm (1.0 in)	52 years	63 of 100 (Major)
30 June 2018	Zhytomyr, UA	daily rain	42.9 mm (1.7 in)	23.5 mm (0.9 in)	77 years	62 of 100 (Major)
30 June 2018	Pavillion, US	daily rain	35.8 mm (1.4 in)	26.1 mm (1.0 in)	59 years	61 of 100 (Major)
30 June 2018	Mezen, RU	daily rain	39.1 mm (1.5 in)	22.6 mm (0.9 in)	44 years	60 of 100 (Major)
30 June 2018	Novi Sad, RS	monthly rain	116.1 mm (4.6 in)	48.5 mm (1.9 in)	8 years	59 of 100 (Notable)
30 June 2018	Bethel AP, US	daily rain	27.7 mm (1.1 in)	16.8 mm (0.7 in)	12 years	52 of 100 (Notable)
30 June 2018	Manistee 3SE, US	monthly high min	25.0 C (77.0 F)	0.6 C (1.1 F)	105 years	51 of 100 (Notable)
30 June 2018	Newberry-Luce Co Rd Commission, US	monthly high min	21.1 C (70.0 F)	0.5 C (0.9 F)	117 years	51 of 100 (Notable)
30 June 2018	Smolensk, RU	daily rain	54.2 mm (2.1 in)	40.0 mm (1.6 in)	7 years	49 of 100 (Notable)
30 June 2018	Laghouat, DZ	daily high min	28.5 C (83.3 F)	2.5 C (4.5 F)	111 years	47 of 100 (Notable)
30 June 2018	Varfu Omul, RO	daily rain	74.4 mm (2.9 in)	27.2 mm (1.1 in)	52 years	47 of 100 (Notable)
30 June 2018	Mohyliv-Podilskyi, UA	daily rain	51.1 mm (2.0 in)	28.9 mm (1.1 in)	44 years	47 of 100 (Notable)
30 June 2018	Zhizhgin Mayak, RU	daily rain	32.1 mm (1.3 in)	10.4 mm (0.4 in)	52 years	46 of 100 (Notable)
30 June 2018	Cuero, US	daily high min	26.7 C (80.1 F)	1.1 C (2.0 F)	111 years	44 of 100 (Notable)
30 June 2018	Newton, US	daily high min	25.6 C (78.1 F)	1.2 C (2.2 F)	100 years	43 of 100 (Notable)
30 June 2018	Waupaca, US	daily high min	23.9 C (75.0 F)	1.7 C (3.1 F)	104 years	43 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 2018

Records set or tied on this calendar date in each year from 1826 to 2018. 2018 had 625 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 2018-06-30: 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 10	398
10 to 20	17
20 to 30	8
30 to 40	2
40 to 50	4
50 to 60	1