Weather Records on 18 April 2008

913 weather records were set or tied worldwide on 18 April 2008. Highest significance: Ejido de Llano Grande, MX.

Key Facts for 18 April 2008

On 18 April 2008, 913 weather records were set or tied at long-record stations worldwide.
266 were record highs and 353 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 40 monthly and 872 daily.
Ejido de Llano Grande set a monthly record daily precipitation of 67.8 mm (2.7 in) on 18 April 2008.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 465 records.

Record Map

913 stations

913 station records on 18 April 2008 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 2008: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ejido de Llano Grande	Mexico	Record daily precipitation	67.8 mm (2.7 in)	62 of 100 (Major)
Shirakawa	Japan	Record daily precipitation	67.1 mm (2.6 in)	58 of 100 (Notable)
Pedernal 9 E	United States	Record daily snowfall	13.0 cm (5.1 in)	57 of 100 (Notable)
Fairfield	United States	Record daily precipitation	44.7 mm (1.8 in)	55 of 100 (Notable)
Chichibu	Japan	Record daily precipitation	83.1 mm (3.3 in)	54 of 100 (Notable)
Waterloo Muni AP	United States	Record daily precipitation	58.2 mm (2.3 in)	52 of 100 (Notable)
Nikko	Japan	Record daily precipitation	89.2 mm (3.5 in)	51 of 100 (Notable)
Winona	United States	Record daily precipitation	50.3 mm (2.0 in)	49 of 100 (Notable)
Heron 2 NW	United States	Record snow depth	27.9 cm (11.0 in)	49 of 100 (Notable)
Fremont	United States	Record daily precipitation	29.5 mm (1.2 in)	49 of 100 (Notable)
Chita	Russia	Record high minimum temperature	10.4 C (50.7 F)	48 of 100 (Notable)
Inverness 3 SE	United States	Record low minimum temperature	2.2 C (36.0 F)	48 of 100 (Notable)
Irozaki	Japan	Record daily precipitation	107.2 mm (4.2 in)	47 of 100 (Notable)
Mancos 1SW	United States	Record low minimum temperature	-10.0 C (14.0 F)	47 of 100 (Notable)
Centerville	United States	Record daily precipitation	46.5 mm (1.8 in)	47 of 100 (Notable)
Milan	United States	Record daily precipitation	50.8 mm (2.0 in)	47 of 100 (Notable)
Zearing	United States	Record daily precipitation	26.9 mm (1.1 in)	46 of 100 (Notable)
Ashland	United States	Record low maximum temperature	7.8 C (46.0 F)	44 of 100 (Notable)
Tizi Ouzou	Algeria	Record high minimum temperature	15.0 C (59.0 F)	43 of 100 (Notable)
Postville	United States	Record daily precipitation	37.1 mm (1.5 in)	43 of 100 (Notable)
Tekamah	United States	Record daily precipitation	32.3 mm (1.3 in)	43 of 100 (Notable)
Waverly	United States	Record low minimum temperature	-7.2 C (19.0 F)	42 of 100 (Notable)
Gallatin 1W	United States	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Rosamorada	Mexico	Record high maximum temperature	43.9 C (111.0 F)	40 of 100 (Notable)
Cedar Rapids #1	United States	Record daily precipitation	49.3 mm (1.9 in)	40 of 100 (Notable)
Aginskoe	Russia	Record high minimum temperature	7.7 C (45.9 F)	39 of 100 (Notable)
Clay Ctr	United States	Record low maximum temperature	8.3 C (46.9 F)	39 of 100 (Notable)
Elk	United States	Record low minimum temperature	-10.0 C (14.0 F)	39 of 100 (Notable)
Breckenridge	United States	Record snow depth	124.5 cm (49.0 in)	38 of 100 (Notable)
Dos Patrias	Mexico	Record low maximum temperature	20.6 C (69.1 F)	37 of 100 (Notable)
Garwin	United States	Record daily precipitation	46.5 mm (1.8 in)	37 of 100 (Notable)
Haugan 1 W	United States	Record snow depth	45.7 cm (18.0 in)	37 of 100 (Notable)
Artesia 6S	United States	Record low minimum temperature	-3.3 C (26.1 F)	37 of 100 (Notable)
Ft Sumner	United States	Record low minimum temperature	-3.9 C (25.0 F)	37 of 100 (Notable)
Belle Plaine	United States	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Cameron	United States	Record low minimum temperature	6.1 C (43.0 F)	36 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high maximum temperature	25.5 C (77.9 F)	35 of 100 (Notable)
Glenmorgan Post Office	Australia	Record daily precipitation	30.0 mm (1.2 in)	35 of 100 (Notable)
Ishinomaki	Japan	Record daily precipitation	28.2 mm (1.1 in)	35 of 100 (Notable)
Krasnyj Chikoj	Russia	Record high maximum temperature	29.3 C (84.7 F)	35 of 100 (Notable)
Aksa	Russia	Record high minimum temperature	6.1 C (43.0 F)	35 of 100 (Notable)
Aleksandrovskij Zav	Russia	Record high maximum temperature	22.2 C (72.0 F)	35 of 100 (Notable)
Zmeinogorsk	Russia	Record low maximum temperature	-3.5 C (25.7 F)	35 of 100 (Notable)
College Obsy	United States	Record daily snowfall	6.1 cm (2.4 in)	35 of 100 (Notable)
Utsunomiya	Japan	Record daily precipitation	46.0 mm (1.8 in)	34 of 100 (Routine)
Maebashi	Japan	Record daily precipitation	47.5 mm (1.9 in)	34 of 100 (Routine)
Carrizozo 1SW	United States	Record low minimum temperature	-7.2 C (19.0 F)	34 of 100 (Routine)
Beaver Falls	United States	Record low minimum temperature	-8.3 C (17.1 F)	34 of 100 (Routine)
Wakamatsu	Japan	Record daily precipitation	32.0 mm (1.3 in)	33 of 100 (Routine)
Tsu	Japan	Record daily precipitation	72.9 mm (2.9 in)	33 of 100 (Routine)
Tokyo	Japan	Record daily precipitation	70.1 mm (2.8 in)	33 of 100 (Routine)
Acajete	Mexico	Record high minimum temperature	13.9 C (57.0 F)	33 of 100 (Routine)
Potrerillos	Mexico	Record low minimum temperature	5.6 C (42.1 F)	33 of 100 (Routine)
Bijsk Zonalnaja	Russia	Record low maximum temperature	-2.5 C (27.5 F)	33 of 100 (Routine)
Rubcovsk	Russia	Record low maximum temperature	-1.5 C (29.3 F)	33 of 100 (Routine)
Independence #1	United States	Record daily precipitation	35.1 mm (1.4 in)	33 of 100 (Routine)
Kennebec	United States	Record daily precipitation	30.2 mm (1.2 in)	33 of 100 (Routine)
Plainville 4WNW	United States	Record low maximum temperature	5.0 C (41.0 F)	33 of 100 (Routine)
Bethany	United States	Record daily precipitation	50.8 mm (2.0 in)	33 of 100 (Routine)
Idabel	United States	Record low minimum temperature	-0.6 C (30.9 F)	33 of 100 (Routine)

Counts by Type and Timescale

913 records

Records set or tied on 18 April 2008 by type: Highest daily maximum 175, Lowest daily maximum 135, Highest daily minimum 91, Lowest daily minimum 218, Heaviest daily rainfall 248, Heaviest daily snowfall 14, Deepest snow cover 32.

Records on 18 April 2008 by type
Record type	Records
Highest daily maximum	175
Lowest daily maximum	135
Highest daily minimum	91
Lowest daily minimum	218
Heaviest daily rainfall	248
Heaviest daily snowfall	14
Deepest snow cover	32

Records on 18 April 2008 by timescale: all-time 1, monthly 40, daily 872.

How Much Records Were Beaten By

747 broken records

Margins by which the 747 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 331.0. Ties are not counted.

Top 20 by Significance

18 April 2008

Top 20 records on 18 April 2008 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 2008	Ejido de Llano Grande, MX	monthly rain	67.8 mm (2.7 in)	23.9 mm (0.9 in)	35 years	62 of 100 (Major)
18 April 2008	Shirakawa, JP	daily rain	67.1 mm (2.6 in)	44.4 mm (1.7 in)	46 years	58 of 100 (Notable)
18 April 2008	Pedernal 9 E, US	daily snowfall	13.0 cm (5.1 in)	13.0 cm (5.1 in)	78 years	57 of 100 (Notable)
18 April 2008	Fairfield, US	daily rain	44.7 mm (1.8 in)	16.8 mm (0.7 in)	99 years	55 of 100 (Notable)
18 April 2008	Chichibu, JP	daily rain	83.1 mm (3.3 in)	50.6 mm (2.0 in)	30 years	54 of 100 (Notable)
18 April 2008	Waterloo Muni AP, US	daily rain	58.2 mm (2.3 in)	37.9 mm (1.5 in)	32 years	52 of 100 (Notable)
18 April 2008	Nikko, JP	daily rain	89.2 mm (3.5 in)	57.2 mm (2.3 in)	30 years	51 of 100 (Notable)
18 April 2008	Winona, US	daily rain	50.3 mm (2.0 in)	12.5 mm (0.5 in)	91 years	49 of 100 (Notable)
18 April 2008	Heron 2 NW, US	daily snow depth	27.9 cm (11.0 in)	27.9 cm (11.0 in)	74 years	49 of 100 (Notable)
18 April 2008	Fremont, US	daily rain	29.5 mm (1.2 in)	8.9 mm (0.35 in)	109 years	49 of 100 (Notable)
18 April 2008	Chita, RU	monthly high min	10.4 C (50.7 F)	2.5 C (4.5 F)	80 years	48 of 100 (Notable)
18 April 2008	Inverness 3 SE, US	daily low min	2.2 C (36.0 F)	3.4 C (6.1 F)	103 years	48 of 100 (Notable)
18 April 2008	Irozaki, JP	daily rain	107.2 mm (4.2 in)	56.2 mm (2.2 in)	38 years	47 of 100 (Notable)
18 April 2008	Mancos 1SW, US	daily low min	-10.0 C (14.0 F)	2.8 C (5.0 F)	107 years	47 of 100 (Notable)
18 April 2008	Centerville, US	daily rain	46.5 mm (1.8 in)	29.0 mm (1.1 in)	42 years	47 of 100 (Notable)
18 April 2008	Milan, US	daily rain	50.8 mm (2.0 in)	21.8 mm (0.9 in)	67 years	47 of 100 (Notable)
18 April 2008	Zearing, US	daily rain	26.9 mm (1.1 in)	8.6 mm (0.34 in)	99 years	46 of 100 (Notable)
18 April 2008	Ashland, US	daily low max	7.8 C (46.0 F)	2.8 C (5.0 F)	108 years	44 of 100 (Notable)
18 April 2008	Tizi Ouzou, DZ	daily high min	15.0 C (59.0 F)	1.0 C (1.8 F)	108 years	43 of 100 (Notable)
18 April 2008	Postville, US	daily rain	37.1 mm (1.5 in)	12.0 mm (0.5 in)	67 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

1793 to 2008

Records set or tied on this calendar date in each year from 1793 to 2008. 2008 had 913 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 2008-04-18: 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	725
50 to 100	10
100 to 150	5
150 to 200	3
200 to 250	1
250 to 300	2
300 to 350	1