Weather Records on 18 April 2015

519 weather records were set or tied worldwide on 18 April 2015. Highest significance: Chugwater, US.

Key Facts for 18 April 2015

On 18 April 2015, 519 weather records were set or tied at long-record stations worldwide.
191 were record highs and 45 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 509 daily.
Chugwater set a daily record precipitation of 57.4 mm (2.3 in) on 18 April 2015.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 467 records.

Record Map

519 stations

519 station records on 18 April 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chugwater	United States	Record daily precipitation	57.4 mm (2.3 in)	80 of 100 (Exceptional)
Uplands (Gibbo River Park)	Australia	Record daily precipitation	53.0 mm (2.1 in)	63 of 100 (Major)
Tawonga	Australia	Record daily precipitation	70.0 mm (2.8 in)	63 of 100 (Major)
Mulwala Post Office	Australia	Record daily precipitation	48.5 mm (1.9 in)	61 of 100 (Major)
Buena Vista 2S	United States	Record snow depth	22.9 cm (9.0 in)	61 of 100 (Major)
Pooncarie (Tarcoola)	Australia	Record daily precipitation	36.0 mm (1.4 in)	60 of 100 (Major)
Tuppal (Warragoon)	Australia	Record daily precipitation	45.8 mm (1.8 in)	59 of 100 (Notable)
Milawa Brown Bros	Australia	Record daily precipitation	49.6 mm (2.0 in)	59 of 100 (Notable)
Beechworth Composite	Australia	Record daily precipitation	62.4 mm (2.5 in)	57 of 100 (Notable)
Peechelba East	Australia	Record daily precipitation	46.6 mm (1.8 in)	57 of 100 (Notable)
Gordon 6N	United States	Record daily precipitation	46.7 mm (1.8 in)	57 of 100 (Notable)
Robe	Australia	Record daily precipitation	45.0 mm (1.8 in)	56 of 100 (Notable)
Mitta Mitta Forestry	Australia	Record daily precipitation	54.0 mm (2.1 in)	55 of 100 (Notable)
Dederang	Australia	Record daily precipitation	67.4 mm (2.7 in)	55 of 100 (Notable)
Mariscal Estigarrib	Paraguay	Record daily precipitation	73.7 mm (2.9 in)	55 of 100 (Notable)
Yackandandah	Australia	Record daily precipitation	58.0 mm (2.3 in)	53 of 100 (Notable)
Nockatunga Station	Australia	Record daily precipitation	30.0 mm (1.2 in)	52 of 100 (Notable)
Balranald (Rsl)	Australia	Record daily precipitation	43.6 mm (1.7 in)	52 of 100 (Notable)
Wharton	United States	Record daily precipitation	108.7 mm (4.3 in)	52 of 100 (Notable)
St Charles Elm Pt	United States	Record high minimum temperature	21.7 C (71.1 F)	51 of 100 (Notable)
Lingle 2WSW	United States	Record daily precipitation	31.0 mm (1.2 in)	51 of 100 (Notable)
Harare (Kutsaga)	Zimbabwe	Record daily precipitation	54.1 mm (2.1 in)	51 of 100 (Notable)
Urana (Butherwah)	Australia	Record daily precipitation	26.0 mm (1.0 in)	50 of 100 (Notable)
Goorambat	Australia	Record daily precipitation	32.6 mm (1.3 in)	50 of 100 (Notable)
Wooragee	Australia	Record daily precipitation	54.8 mm (2.2 in)	50 of 100 (Notable)
Songpan	China	Record daily precipitation	39.1 mm (1.5 in)	50 of 100 (Notable)
El Campo	United States	Record daily precipitation	76.2 mm (3.0 in)	50 of 100 (Notable)
Tocumwal Airport	Australia	Record daily precipitation	35.2 mm (1.4 in)	49 of 100 (Notable)
Dartmouth Reservoir	Australia	Record daily precipitation	48.6 mm (1.9 in)	49 of 100 (Notable)
Barnawartha	Australia	Record daily precipitation	38.2 mm (1.5 in)	48 of 100 (Notable)
Mount Buller	Australia	Record daily precipitation	65.6 mm (2.6 in)	48 of 100 (Notable)
Evergreen	United States	Record daily precipitation	68.1 mm (2.7 in)	48 of 100 (Notable)
Saint Paul	United States	Record daily precipitation	36.1 mm (1.4 in)	48 of 100 (Notable)
Sybille Rsch Unit	United States	Record daily precipitation	38.4 mm (1.5 in)	48 of 100 (Notable)
The Rock Post Office	Australia	Record daily precipitation	30.5 mm (1.2 in)	47 of 100 (Notable)
Cobram (Goulburn Murray)	Australia	Record daily precipitation	39.4 mm (1.6 in)	47 of 100 (Notable)
Warrenbayne	Australia	Record daily precipitation	51.0 mm (2.0 in)	47 of 100 (Notable)
Thredbo AWS	Australia	Record daily precipitation	50.2 mm (2.0 in)	46 of 100 (Notable)
Wentworth Post Office	Australia	Record daily precipitation	35.0 mm (1.4 in)	45 of 100 (Notable)
Douglas 1 SE	United States	Record daily precipitation	26.4 mm (1.0 in)	45 of 100 (Notable)
Wanganella General Store	Australia	Record daily precipitation	32.0 mm (1.3 in)	44 of 100 (Notable)
Caniambo	Australia	Record daily precipitation	41.0 mm (1.6 in)	44 of 100 (Notable)
Carboor	Australia	Record daily precipitation	42.2 mm (1.7 in)	44 of 100 (Notable)
Gundowring Upper	Australia	Record daily precipitation	63.4 mm (2.5 in)	44 of 100 (Notable)
Weetaliba (Weetalabah)	Australia	Record daily precipitation	27.0 mm (1.1 in)	43 of 100 (Notable)
Newman	United States	Record high maximum temperature	34.4 C (93.9 F)	43 of 100 (Notable)
Springhurst	Australia	Record daily precipitation	30.2 mm (1.2 in)	42 of 100 (Notable)
Belzoni	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Corowa Airport	Australia	Record daily precipitation	26.0 mm (1.0 in)	41 of 100 (Notable)
Indigo	Australia	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Omeo Shannon Vale	Australia	Record daily precipitation	48.0 mm (1.9 in)	41 of 100 (Notable)
Sonora	United States	Record daily precipitation	32.3 mm (1.3 in)	40 of 100 (Notable)
Wentworth (Wamberra Station)	Australia	Record daily precipitation	26.4 mm (1.0 in)	39 of 100 (Notable)
Everglades	United States	Record high minimum temperature	22.8 C (73.0 F)	39 of 100 (Notable)
Greenville	United States	Record daily precipitation	36.3 mm (1.4 in)	39 of 100 (Notable)
Yunta (Panaramitee)	Australia	Record daily precipitation	28.2 mm (1.1 in)	38 of 100 (Notable)
Thredbo Village	Australia	Record daily precipitation	49.3 mm (1.9 in)	38 of 100 (Notable)
Walla Walla Post Office	Australia	Record daily precipitation	29.4 mm (1.2 in)	38 of 100 (Notable)
N Platte Rgnl AP	United States	Record daily precipitation	27.4 mm (1.1 in)	38 of 100 (Notable)
Ulupna	Australia	Record daily precipitation	32.0 mm (1.3 in)	37 of 100 (Notable)

Counts by Type and Timescale

519 records

Records set or tied on 18 April 2015 by type: Highest daily maximum 70, Lowest daily maximum 29, Highest daily minimum 121, Lowest daily minimum 16, Heaviest daily rainfall 255, Heaviest daily snowfall 14, Deepest snow cover 14.

Records on 18 April 2015 by type
Record type	Records
Highest daily maximum	70
Lowest daily maximum	29
Highest daily minimum	121
Lowest daily minimum	16
Heaviest daily rainfall	255
Heaviest daily snowfall	14
Deepest snow cover	14

Records on 18 April 2015 by timescale: all-time 0, monthly 10, daily 509.

How Much Records Were Beaten By

448 broken records

Margins by which the 448 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

18 April 2015

Top 20 records on 18 April 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 2015	Chugwater, US	daily rain	57.4 mm (2.3 in)	31.0 mm (1.2 in)	112 years	80 of 100 (Exceptional)
18 April 2015	Uplands (Gibbo River Park), AU	daily rain	53.0 mm (2.1 in)	25.1 mm (1.0 in)	108 years	63 of 100 (Major)
18 April 2015	Tawonga, AU	daily rain	70.0 mm (2.8 in)	57.0 mm (2.2 in)	58 years	63 of 100 (Major)
18 April 2015	Mulwala Post Office, AU	daily rain	48.5 mm (1.9 in)	36.6 mm (1.4 in)	44 years	61 of 100 (Major)
18 April 2015	Buena Vista 2S, US	daily snow depth	22.9 cm (9.0 in)	20.4 cm (8.0 in)	93 years	61 of 100 (Major)
18 April 2015	Pooncarie (Tarcoola), AU	daily rain	36.0 mm (1.4 in)	20.0 mm (0.8 in)	136 years	60 of 100 (Major)
18 April 2015	Tuppal (Warragoon), AU	daily rain	45.8 mm (1.8 in)	33.1 mm (1.3 in)	44 years	59 of 100 (Notable)
18 April 2015	Milawa Brown Bros, AU	daily rain	49.6 mm (2.0 in)	33.1 mm (1.3 in)	62 years	59 of 100 (Notable)
18 April 2015	Beechworth Composite, AU	daily rain	62.4 mm (2.5 in)	34.0 mm (1.3 in)	62 years	57 of 100 (Notable)
18 April 2015	Peechelba East, AU	daily rain	46.6 mm (1.8 in)	36.6 mm (1.4 in)	36 years	57 of 100 (Notable)
18 April 2015	Gordon 6N, US	daily rain	46.7 mm (1.8 in)	16.2 mm (0.6 in)	94 years	57 of 100 (Notable)
18 April 2015	Robe, AU	daily rain	45.0 mm (1.8 in)	45.0 mm (1.8 in)	41 years	56 of 100 (Notable)
18 April 2015	Mitta Mitta Forestry, AU	daily rain	54.0 mm (2.1 in)	34.9 mm (1.4 in)	58 years	55 of 100 (Notable)
18 April 2015	Dederang, AU	daily rain	67.4 mm (2.7 in)	55.6 mm (2.2 in)	36 years	55 of 100 (Notable)
18 April 2015	Mariscal Estigarrib, PY	daily rain	73.7 mm (2.9 in)	63.4 mm (2.5 in)	40 years	55 of 100 (Notable)
18 April 2015	Yackandandah, AU	daily rain	58.0 mm (2.3 in)	16.1 mm (0.6 in)	120 years	53 of 100 (Notable)
18 April 2015	Nockatunga Station, AU	daily rain	30.0 mm (1.2 in)	30.0 mm (1.2 in)	117 years	52 of 100 (Notable)
18 April 2015	Balranald (Rsl), AU	daily rain	43.6 mm (1.7 in)	26.1 mm (1.0 in)	44 years	52 of 100 (Notable)
18 April 2015	Wharton, US	daily rain	108.7 mm (4.3 in)	61.7 mm (2.4 in)	41 years	52 of 100 (Notable)
18 April 2015	St Charles Elm Pt, US	monthly high min	21.7 C (71.1 F)	0.6 C (1.1 F)	122 years	51 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 2015

Records set or tied on this calendar date in each year from 1793 to 2015. 2015 had 519 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 2015-04-18: 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 2026-10-17 (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 50	435
50 to 100	11
100 to 150	1
150 to 200	0
200 to 250	1