Weather Records on 12 May 2018

819 weather records were set or tied worldwide on 12 May 2018. Highest significance: Dargo, AU.

Key Facts for 12 May 2018

On 12 May 2018, 819 weather records were set or tied at long-record stations worldwide.
509 were record highs and 100 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 804 daily.
Dargo set a daily record precipitation of 47.6 mm (1.9 in) on 12 May 2018.
Across 164 earlier years (1814 to 2026) the same calendar date averaged 450 records.

Record Map

819 stations

819 station records on 12 May 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 May 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dargo	Australia	Record daily precipitation	47.6 mm (1.9 in)	64 of 100 (Major)
Dachwig	Germany	Record daily precipitation	75.0 mm (3.0 in)	63 of 100 (Major)
Arco	United States	Record daily precipitation	27.9 mm (1.1 in)	61 of 100 (Major)
Green Rvr	United States	Record daily precipitation	40.9 mm (1.6 in)	61 of 100 (Major)
Tongio (Brooklands)	Australia	Record daily precipitation	43.5 mm (1.7 in)	60 of 100 (Major)
German Town	Australia	Record daily precipitation	62.0 mm (2.4 in)	59 of 100 (Notable)
Howe	United States	Record daily precipitation	25.9 mm (1.0 in)	57 of 100 (Notable)
Fingal (Legge Street)	Australia	Record daily precipitation	49.6 mm (2.0 in)	53 of 100 (Notable)
Detroit City AP	United States	Record daily precipitation	66.0 mm (2.6 in)	53 of 100 (Notable)
Idaho Falls 46 W	United States	Record daily precipitation	35.8 mm (1.4 in)	52 of 100 (Notable)
Craigie (Finchley)	Australia	Record daily precipitation	65.8 mm (2.6 in)	49 of 100 (Notable)
Cooma Airport AWS	Australia	Record daily precipitation	27.0 mm (1.1 in)	49 of 100 (Notable)
Mandurama Post Office	Australia	Record daily precipitation	34.8 mm (1.4 in)	48 of 100 (Notable)
Cann River	Australia	Record daily precipitation	95.0 mm (3.7 in)	48 of 100 (Notable)
Albany	Australia	Record high maximum temperature	29.0 C (84.2 F)	47 of 100 (Notable)
Mancos 1SW	United States	Record high minimum temperature	11.7 C (53.1 F)	47 of 100 (Notable)
Elkhart Park G.S.	United States	Record daily precipitation	30.5 mm (1.2 in)	46 of 100 (Notable)
Kentfield	United States	Record high minimum temperature	16.7 C (62.1 F)	44 of 100 (Notable)
Hesket (Straws Lane)	Australia	Record daily precipitation	39.0 mm (1.5 in)	43 of 100 (Notable)
Black Mountain	Australia	Record daily precipitation	37.0 mm (1.5 in)	42 of 100 (Notable)
Deal Island	Australia	Record daily precipitation	30.0 mm (1.2 in)	42 of 100 (Notable)
Greensburg	United States	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Chapman	United States	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Bear Canyon	United States	Record daily precipitation	30.5 mm (1.2 in)	42 of 100 (Notable)
St Marys (Cullenswood)	Australia	Record daily precipitation	56.4 mm (2.2 in)	41 of 100 (Notable)
Kirensk	Russia	Record low minimum temperature	-6.4 C (20.5 F)	41 of 100 (Notable)
Wynne	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Sonoma	United States	Record high minimum temperature	14.4 C (57.9 F)	41 of 100 (Notable)
Westcliffe	United States	Record high minimum temperature	11.1 C (52.0 F)	41 of 100 (Notable)
Hammonton 1 NE	United States	Record daily precipitation	35.3 mm (1.4 in)	41 of 100 (Notable)
Edenton	United States	Record high minimum temperature	21.1 C (70.0 F)	41 of 100 (Notable)
Loa	United States	Record high minimum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Hopewell	United States	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Warsaw 2 NW	United States	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Racine Wwtp	United States	Record low maximum temperature	5.6 C (42.1 F)	41 of 100 (Notable)
Ensay	Australia	Record daily precipitation	55.0 mm (2.2 in)	40 of 100 (Notable)
Cornelia	United States	Record high maximum temperature	30.6 C (87.1 F)	40 of 100 (Notable)
Manila	United States	Record daily precipitation	27.7 mm (1.1 in)	39 of 100 (Notable)
Annex Creek	United States	Record high minimum temperature	8.9 C (48.0 F)	39 of 100 (Notable)
Cobargo (Wandella)	Australia	Record daily precipitation	34.0 mm (1.3 in)	38 of 100 (Notable)
Silverton	United States	Record high minimum temperature	7.2 C (45.0 F)	38 of 100 (Notable)
Skagway	United States	Record high minimum temperature	8.9 C (48.0 F)	38 of 100 (Notable)
Bonang	Australia	Record daily precipitation	78.0 mm (3.1 in)	37 of 100 (Notable)
Bullengarook East (Seskinore)	Australia	Record daily precipitation	36.0 mm (1.4 in)	37 of 100 (Notable)
Caballo Dam	United States	Record high minimum temperature	18.9 C (66.0 F)	37 of 100 (Notable)
Jackson Springs 5 WNW	United States	Record high maximum temperature	37.8 C (100.0 F)	37 of 100 (Notable)
Donnybrook	Australia	Record high maximum temperature	30.0 C (86.0 F)	36 of 100 (Notable)
Powelltown Dnre	Australia	Record daily precipitation	67.8 mm (2.7 in)	36 of 100 (Notable)
Greenvale Reservoir	Australia	Record daily precipitation	27.0 mm (1.1 in)	36 of 100 (Notable)
Visby_Flygplats	Sweden	Record high minimum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
Kapan	Armenia	Record daily precipitation	27.7 mm (1.1 in)	34 of 100 (Routine)
Morrisons (Ballark)	Australia	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Kyzyl-Ozek	Russia	Record daily precipitation	27.6 mm (1.1 in)	34 of 100 (Routine)
Bailey	United States	Record high minimum temperature	6.7 C (44.1 F)	34 of 100 (Routine)
Augusta	United States	Record daily precipitation	30.5 mm (1.2 in)	34 of 100 (Routine)
Kewaunee	United States	Record low maximum temperature	6.7 C (44.1 F)	34 of 100 (Routine)
Crooked Rvr (Crooked River (Ha	Australia	Record daily precipitation	56.0 mm (2.2 in)	33 of 100 (Routine)
Blairsville Exp STN	United States	Record high maximum temperature	30.0 C (86.0 F)	33 of 100 (Routine)
Atlanta Hartsfield-Jackson Int	United States	Record high maximum temperature	32.2 C (90.0 F)	33 of 100 (Routine)
Erie Intl AP	United States	Record daily precipitation	46.7 mm (1.8 in)	33 of 100 (Routine)

Counts by Type and Timescale

819 records

Records set or tied on 12 May 2018 by type: Highest daily maximum 260, Lowest daily maximum 64, Highest daily minimum 249, Lowest daily minimum 36, Heaviest daily rainfall 208, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 12 May 2018 by type
Record type	Records
Highest daily maximum	260
Lowest daily maximum	64
Highest daily minimum	249
Lowest daily minimum	36
Heaviest daily rainfall	208
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 12 May 2018 by timescale: all-time 1, monthly 14, daily 804.

How Much Records Were Beaten By

650 broken records

Margins by which the 650 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.2. Ties are not counted.

Top 20 by Significance

12 May 2018

Top 20 records on 12 May 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 2018	Dargo, AU	daily rain	47.6 mm (1.9 in)	36.4 mm (1.4 in)	55 years	64 of 100 (Major)
12 May 2018	Dachwig, DE	all-time rain	75.0 mm (3.0 in)	9.8 mm (0.39 in)	62 years	63 of 100 (Major)
12 May 2018	Arco, US	daily rain	27.9 mm (1.1 in)	17.0 mm (0.7 in)	60 years	61 of 100 (Major)
12 May 2018	Green Rvr, US	daily rain	40.9 mm (1.6 in)	25.7 mm (1.0 in)	37 years	61 of 100 (Major)
12 May 2018	Tongio (Brooklands), AU	daily rain	43.5 mm (1.7 in)	24.2 mm (1.0 in)	61 years	60 of 100 (Major)
12 May 2018	German Town, AU	daily rain	62.0 mm (2.4 in)	50.6 mm (2.0 in)	81 years	59 of 100 (Notable)
12 May 2018	Howe, US	daily rain	25.9 mm (1.0 in)	15.7 mm (0.6 in)	49 years	57 of 100 (Notable)
12 May 2018	Fingal (Legge Street), AU	daily rain	49.6 mm (2.0 in)	33.8 mm (1.3 in)	25 years	53 of 100 (Notable)
12 May 2018	Detroit City AP, US	daily rain	66.0 mm (2.6 in)	28.4 mm (1.1 in)	52 years	53 of 100 (Notable)
12 May 2018	Idaho Falls 46 W, US	monthly rain	35.8 mm (1.4 in)	11.7 mm (0.5 in)	30 years	52 of 100 (Notable)
12 May 2018	Craigie (Finchley), AU	daily rain	65.8 mm (2.6 in)	36.6 mm (1.4 in)	13 years	49 of 100 (Notable)
12 May 2018	Cooma Airport AWS, AU	daily rain	27.0 mm (1.1 in)	25.0 mm (1.0 in)	21 years	49 of 100 (Notable)
12 May 2018	Mandurama Post Office, AU	daily rain	34.8 mm (1.4 in)	25.0 mm (1.0 in)	40 years	48 of 100 (Notable)
12 May 2018	Cann River, AU	daily rain	95.0 mm (3.7 in)	60.2 mm (2.4 in)	13 years	48 of 100 (Notable)
12 May 2018	Albany, AU	daily high max	29.0 C (84.2 F)	2.1 C (3.8 F)	111 years	47 of 100 (Notable)
12 May 2018	Mancos 1SW, US	daily high min	11.7 C (53.1 F)	2.8 C (5.0 F)	116 years	47 of 100 (Notable)
12 May 2018	Elkhart Park G.S., US	daily rain	30.5 mm (1.2 in)	17.8 mm (0.7 in)	28 years	46 of 100 (Notable)
12 May 2018	Kentfield, US	daily high min	16.7 C (62.1 F)	4.5 C (8.1 F)	57 years	44 of 100 (Notable)
12 May 2018	Hesket (Straws Lane), AU	daily rain	39.0 mm (1.5 in)	23.2 mm (0.9 in)	21 years	43 of 100 (Notable)
12 May 2018	Black Mountain, AU	daily rain	37.0 mm (1.5 in)	11.1 mm (0.4 in)	61 years	42 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

1814 to 2018

Records set or tied on this calendar date in each year from 1814 to 2018. 2018 had 819 records.

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

Records on 05-12 in each year
Year	Records
1814	2
1823	1
1825	1
1827	1
1834	1
1837	1
1838	1
1845	1
1847	1
1848	1
1849	2
1851	1
1855	2
1860	2
1862	2
1863	1
1867	1
1868	1
1872	2
1874	1
1877	1
1878	1
1879	1
1881	4
1882	5
1884	3
1885	2
1886	3
1887	1
1888	1
1889	1
1890	1
1891	4
1894	1
1895	1
1896	1
1897	7
1898	3
1900	3
1901	6
1902	5
1903	7
1904	11
1905	10
1906	20
1907	53
1908	12
1909	4
1910	9
1911	37
1912	46
1913	6
1914	36
1915	50
1916	42
1917	54
1918	113
1919	42
1920	19
1921	64
1922	43
1923	109
1924	245
1925	275
1926	121
1927	167
1928	192
1929	172
1930	500
1931	350
1932	199
1933	476
1934	293
1935	404
1936	329
1937	214
1938	394
1939	233
1940	440
1941	568
1942	418
1943	803
1944	368
1945	389
1946	653
1947	286
1948	390
1949	414
1950	283
1951	427
1952	711
1953	891
1954	305
1955	265
1956	1,568
1957	454
1958	714
1959	740
1960	1,583
1961	381
1962	713
1963	777
1964	401
1965	196
1966	909
1967	810
1968	890
1969	506
1970	698
1971	668
1972	641
1973	393
1974	702
1975	418
1976	541
1977	855
1978	802
1979	763
1980	684
1981	855
1982	763
1983	1,281
1984	887
1985	1,199
1986	473
1987	1,295
1988	619
1989	856
1990	617
1991	1,177
1992	1,022
1993	1,208
1994	738
1995	1,190
1996	1,420
1997	921
1998	1,576
1999	881
2000	1,486
2001	1,015
2002	1,027
2003	861
2004	1,054
2005	1,369
2006	797
2007	630
2008	858
2009	687
2010	1,250
2011	1,119
2012	660
2013	689
2014	949
2015	958
2016	421
2017	529
2018	819
2019	784
2020	1,338
2021	712
2022	1,930
2023	429
2024	447
2025	940
2026	1,110

Download the Data

Data for records on 2018-05-12: 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	597
10 to 20	36
20 to 30	12
30 to 40	3
40 to 50	0
50 to 60	1
60 to 70	1