Weather Records on 18 April 2012

744 weather records were set or tied worldwide on 18 April 2012. Highest significance: Potts Hill Reservoir, AU.

Key Facts for 18 April 2012

On 18 April 2012, 744 weather records were set or tied at long-record stations worldwide.
313 were record highs and 130 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 14 monthly and 730 daily.
Potts Hill Reservoir set a daily record precipitation of 111.0 mm (4.4 in) on 18 April 2012.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 466 records.

Record Map

744 stations

744 station records on 18 April 2012 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 2012: highest significance records shown on the map
Station	Country	Type	Value	Significance
Potts Hill Reservoir	Australia	Record daily precipitation	111.0 mm (4.4 in)	75 of 100 (Major)
Waynesville 1 E	United States	Record daily precipitation	69.8 mm (2.7 in)	74 of 100 (Major)
Seal Rocks Camping Reserve	Australia	Record daily precipitation	108.0 mm (4.3 in)	63 of 100 (Major)
Bradford	United Kingdom	Record daily precipitation	25.2 mm (1.0 in)	56 of 100 (Notable)
Mummulgum (Bingeebeebra)	Australia	Record daily precipitation	110.0 mm (4.3 in)	54 of 100 (Notable)
Riverview Observatory	Australia	Record daily precipitation	83.2 mm (3.3 in)	52 of 100 (Notable)
Kosciusko	United States	Record daily precipitation	74.9 mm (2.9 in)	52 of 100 (Notable)
Jasso	Mexico	Record daily precipitation	27.9 mm (1.1 in)	51 of 100 (Notable)
A Coruna/Alvedro	Spain	Record daily precipitation	41.3 mm (1.6 in)	51 of 100 (Notable)
N Wilkesboro	United States	Record daily precipitation	46.5 mm (1.8 in)	51 of 100 (Notable)
Fiddletown (Bloodwood Road)	Australia	Record daily precipitation	96.0 mm (3.8 in)	50 of 100 (Notable)
Camden Airport AWS	Australia	Record daily precipitation	58.0 mm (2.3 in)	50 of 100 (Notable)
Franklin	United States	Record daily precipitation	58.4 mm (2.3 in)	48 of 100 (Notable)
Glenroy	Australia	Record daily precipitation	51.0 mm (2.0 in)	47 of 100 (Notable)
Glenorie (Old Northern Rd)	Australia	Record daily precipitation	95.0 mm (3.7 in)	47 of 100 (Notable)
Berowra (Goodwyn Road)	Australia	Record daily precipitation	62.2 mm (2.4 in)	47 of 100 (Notable)
Tulum	Mexico	Record daily precipitation	47.8 mm (1.9 in)	45 of 100 (Notable)
Agua Nueva	Mexico	Record daily precipitation	34.8 mm (1.4 in)	45 of 100 (Notable)
Toronto Wwtp	Australia	Record daily precipitation	75.0 mm (3.0 in)	44 of 100 (Notable)
Valladolid (Dge)	Mexico	Record daily precipitation	64.8 mm (2.6 in)	44 of 100 (Notable)
Lake Lure 2	United States	Record daily precipitation	64.8 mm (2.6 in)	44 of 100 (Notable)
Prospect Reservoir	Australia	Record daily precipitation	43.4 mm (1.7 in)	43 of 100 (Notable)
Elko Rgnl AP	United States	Record high minimum temperature	8.3 C (46.9 F)	43 of 100 (Notable)
Marnhull	Australia	Record daily precipitation	35.2 mm (1.4 in)	42 of 100 (Notable)
Ekaterinburg	Russia	Record high maximum temperature	28.7 C (83.7 F)	42 of 100 (Notable)
Cullowhee	United States	Record daily precipitation	39.1 mm (1.5 in)	42 of 100 (Notable)
Castlereagh (Castlereagh Road)	Australia	Record daily precipitation	56.4 mm (2.2 in)	41 of 100 (Notable)
Hyannis	United States	Record high minimum temperature	10.0 C (50.0 F)	41 of 100 (Notable)
Montello 2NE	United States	Record high minimum temperature	7.2 C (45.0 F)	41 of 100 (Notable)
Hohenwald	United States	Record low maximum temperature	12.2 C (54.0 F)	41 of 100 (Notable)
Parramatta North (Masons Drive	Australia	Record daily precipitation	70.0 mm (2.8 in)	40 of 100 (Notable)
Richmond - Uws Hawkesbury	Australia	Record daily precipitation	50.6 mm (2.0 in)	40 of 100 (Notable)
Dziuche	Mexico	Record daily precipitation	51.6 mm (2.0 in)	40 of 100 (Notable)
Ufa	Russia	Record high maximum temperature	29.5 C (85.1 F)	40 of 100 (Notable)
Blairsville Exp STN	United States	Record daily precipitation	45.5 mm (1.8 in)	40 of 100 (Notable)
State UNIV	United States	Record daily precipitation	57.4 mm (2.3 in)	40 of 100 (Notable)
Mahackala	Russia	Record high maximum temperature	26.2 C (79.2 F)	39 of 100 (Notable)
Yarramalong (Lewensbrook)	Australia	Record daily precipitation	71.0 mm (2.8 in)	38 of 100 (Notable)
Rookwood (Hawthorne Ave)	Australia	Record daily precipitation	66.6 mm (2.6 in)	38 of 100 (Notable)
Richmond Raaf	Australia	Record daily precipitation	56.4 mm (2.2 in)	38 of 100 (Notable)
Ponce 4 E	Puerto Rico [United States]	Record low minimum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Cherdyn'	Russia	Record high maximum temperature	20.5 C (68.9 F)	38 of 100 (Notable)
Seven Hills (Collins St)	Australia	Record daily precipitation	52.6 mm (2.1 in)	37 of 100 (Notable)
Cherdyn'	Russia	Record high minimum temperature	8.2 C (46.8 F)	37 of 100 (Notable)
Enka	United States	Record daily precipitation	62.2 mm (2.4 in)	37 of 100 (Notable)
Emmaville (Ben Vale)	Australia	Record daily precipitation	32.2 mm (1.3 in)	36 of 100 (Notable)
Pennant Hills (Yarrara Road)	Australia	Record daily precipitation	82.4 mm (3.2 in)	36 of 100 (Notable)
Crestview FAA/AP	United States	Record daily precipitation	45.0 mm (1.8 in)	36 of 100 (Notable)
Peats Ridge (Waratah Road)	Australia	Record daily precipitation	72.8 mm (2.9 in)	35 of 100 (Notable)
Orchard Hills Treatment Works	Australia	Record daily precipitation	42.0 mm (1.7 in)	35 of 100 (Notable)
Aerop.Internacional	Mexico	Record daily precipitation	72.9 mm (2.9 in)	35 of 100 (Notable)
Troitsk	Russia	Record high maximum temperature	30.3 C (86.5 F)	35 of 100 (Notable)
Lookout Pt Dam	United States	Record daily precipitation	32.3 mm (1.3 in)	35 of 100 (Notable)
Dural (Old Northern Road)	Australia	Record daily precipitation	72.6 mm (2.9 in)	34 of 100 (Routine)
Vacoas (Mauritius)	Mauritius	Record daily precipitation	59.9 mm (2.4 in)	34 of 100 (Routine)
Gjerstad I Aust-Agder	Norway	Record daily precipitation	29.7 mm (1.2 in)	34 of 100 (Routine)
Asturias/Aviles	Spain	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Norton W	United States	Record high minimum temperature	11.7 C (53.1 F)	34 of 100 (Routine)
Brookstead Post Office	Australia	Record daily precipitation	34.2 mm (1.3 in)	33 of 100 (Routine)
Puyacatengo	Mexico	Record daily precipitation	124.2 mm (4.9 in)	33 of 100 (Routine)

Counts by Type and Timescale

744 records

Records set or tied on 18 April 2012 by type: Highest daily maximum 154, Lowest daily maximum 61, Highest daily minimum 159, Lowest daily minimum 69, Heaviest daily rainfall 298, Deepest snow cover 3.

Records on 18 April 2012 by type
Record type	Records
Highest daily maximum	154
Lowest daily maximum	61
Highest daily minimum	159
Lowest daily minimum	69
Heaviest daily rainfall	298
Heaviest daily snowfall	0
Deepest snow cover	3

Records on 18 April 2012 by timescale: all-time 0, monthly 14, daily 730.

How Much Records Were Beaten By

625 broken records

Margins by which the 625 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

18 April 2012

Top 20 records on 18 April 2012 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 2012	Potts Hill Reservoir, AU	daily rain	111.0 mm (4.4 in)	72.9 mm (2.9 in)	86 years	75 of 100 (Major)
18 April 2012	Waynesville 1 E, US	daily rain	69.8 mm (2.7 in)	44.4 mm (1.7 in)	88 years	74 of 100 (Major)
18 April 2012	Seal Rocks Camping Reserve, AU	daily rain	108.0 mm (4.3 in)	40.7 mm (1.6 in)	101 years	63 of 100 (Major)
18 April 2012	Bradford, GB	daily rain	25.2 mm (1.0 in)	12.7 mm (0.5 in)	72 years	56 of 100 (Notable)
18 April 2012	Mummulgum (Bingeebeebra), AU	daily rain	110.0 mm (4.3 in)	90.0 mm (3.5 in)	25 years	54 of 100 (Notable)
18 April 2012	Riverview Observatory, AU	daily rain	83.2 mm (3.3 in)	25.0 mm (1.0 in)	86 years	52 of 100 (Notable)
18 April 2012	Kosciusko, US	daily rain	74.9 mm (2.9 in)	33.0 mm (1.3 in)	90 years	52 of 100 (Notable)
18 April 2012	Jasso, MX	daily rain	27.9 mm (1.1 in)	18.0 mm (0.7 in)	60 years	51 of 100 (Notable)
18 April 2012	A Coruna/Alvedro, ES	daily rain	41.3 mm (1.6 in)	29.5 mm (1.2 in)	26 years	51 of 100 (Notable)
18 April 2012	N Wilkesboro, US	daily rain	46.5 mm (1.8 in)	24.7 mm (1.0 in)	81 years	51 of 100 (Notable)
18 April 2012	Fiddletown (Bloodwood Road), AU	daily rain	96.0 mm (3.8 in)	80.6 mm (3.2 in)	22 years	50 of 100 (Notable)
18 April 2012	Camden Airport AWS, AU	daily rain	58.0 mm (2.3 in)	50.0 mm (2.0 in)	10 years	50 of 100 (Notable)
18 April 2012	Franklin, US	daily rain	58.4 mm (2.3 in)	37.1 mm (1.5 in)	43 years	48 of 100 (Notable)
18 April 2012	Glenroy, AU	daily rain	51.0 mm (2.0 in)	44.8 mm (1.8 in)	10 years	47 of 100 (Notable)
18 April 2012	Glenorie (Old Northern Rd), AU	daily rain	95.0 mm (3.7 in)	32.8 mm (1.3 in)	66 years	47 of 100 (Notable)
18 April 2012	Berowra (Goodwyn Road), AU	daily rain	62.2 mm (2.4 in)	12.7 mm (0.5 in)	101 years	47 of 100 (Notable)
18 April 2012	Tulum, MX	daily rain	47.8 mm (1.9 in)	45.0 mm (1.8 in)	36 years	45 of 100 (Notable)
18 April 2012	Agua Nueva, MX	monthly rain	34.8 mm (1.4 in)	9.9 mm (0.39 in)	46 years	45 of 100 (Notable)
18 April 2012	Toronto Wwtp, AU	daily rain	75.0 mm (3.0 in)	59.0 mm (2.3 in)	20 years	44 of 100 (Notable)
18 April 2012	Valladolid (Dge), MX	daily rain	64.8 mm (2.6 in)	43.5 mm (1.7 in)	35 years	44 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

1793 to 2012

Records set or tied on this calendar date in each year from 1793 to 2012. 2012 had 744 records.

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

Records on 04-18 in each year
Year	Records
1793	1
1807	2
1815	1
1838	1
1847	1
1849	1
1851	1
1852	3
1854	3
1855	1
1865	4
1867	1
1870	1
1871	1
1875	4
1877	2
1878	1
1879	3
1880	2
1884	2
1886	2
1887	3
1888	1
1889	1
1890	2
1891	1
1892	3
1893	5
1894	7
1895	2
1896	3
1897	5
1898	8
1899	2
1900	2
1901	6
1902	5
1903	11
1904	9
1905	12
1906	18
1907	17
1908	37
1909	19
1910	19
1911	25
1912	21
1913	26
1914	38
1915	31
1916	22
1917	40
1918	76
1919	16
1920	64
1921	58
1922	85
1923	107
1924	101
1925	154
1926	322
1927	391
1928	323
1929	126
1930	113
1931	173
1932	326
1933	211
1934	391
1935	264
1936	483
1937	477
1938	711
1939	525
1940	322
1941	496
1942	287
1943	298
1944	259
1945	371
1946	357
1947	444
1948	932
1949	345
1950	244
1951	658
1952	536
1953	1,322
1954	442
1955	817
1956	467
1957	629
1958	370
1959	468
1960	320
1961	520
1962	484
1963	662
1964	449
1965	363
1966	776
1967	882
1968	867
1969	795
1970	771
1971	1,106
1972	470
1973	953
1974	326
1975	751
1976	1,309
1977	717
1978	803
1979	841
1980	842
1981	708
1982	616
1983	2,082
1984	625
1985	1,119
1986	622
1987	1,068
1988	936
1989	625
1990	1,368
1991	780
1992	702
1993	730
1994	1,218
1995	1,601
1996	826
1997	1,256
1998	1,011
1999	1,428
2000	912
2001	1,487
2002	2,084
2003	969
2004	846
2005	622
2006	1,262
2007	675
2008	913
2009	624
2010	478
2011	1,122
2012	744
2013	2,509
2014	534
2015	519
2016	973
2017	588
2018	1,202
2019	601
2020	770
2021	592
2022	1,013
2023	739
2024	641
2025	997
2026	498

Download the Data

Data for records on 2012-04-18: 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 2026-10-16 (16 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	582
25 to 50	30
50 to 75	9
75 to 100	3
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	1