Weather Records on 18 April 1972

470 weather records were set or tied worldwide on 18 April 1972. Highest significance: Contendas Do Sincora, BR.

Key Facts for 18 April 1972

On 18 April 1972, 470 weather records were set or tied at long-record stations worldwide.
102 were record highs and 186 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 458 daily.
Contendas Do Sincora set a monthly record daily precipitation of 113.1 mm (4.5 in) on 18 April 1972.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 467 records.

Record Map

470 stations

470 station records on 18 April 1972 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1972: highest significance records shown on the map
Station	Country	Type	Value	Significance
Contendas Do Sincora	Brazil	Record daily precipitation	113.1 mm (4.5 in)	64 of 100 (Major)
Zmeinogorsk	Russia	Record daily precipitation	34.4 mm (1.4 in)	59 of 100 (Notable)
El Chico	Mexico	Record daily precipitation	61.5 mm (2.4 in)	49 of 100 (Notable)
Holy Cross	United States	Record daily snowfall	21.8 cm (8.6 in)	49 of 100 (Notable)
Porto	Brazil	Record daily precipitation	84.5 mm (3.3 in)	46 of 100 (Notable)
Valdez WSO	United States	Record daily snowfall	64.0 cm (25.2 in)	46 of 100 (Notable)
Wagner (Itacira)	Brazil	Record daily precipitation	64.2 mm (2.5 in)	45 of 100 (Notable)
Langara	Canada	Record daily precipitation	30.5 mm (1.2 in)	41 of 100 (Notable)
Riverdale	United States	Record daily snowfall	7.6 cm (3.0 in)	40 of 100 (Notable)
Tototlan	Mexico	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Rangely 1E	United States	Record high minimum temperature	8.9 C (48.0 F)	36 of 100 (Notable)
Pineview Dam	United States	Record daily snowfall	10.2 cm (4.0 in)	36 of 100 (Notable)
Kljuchi	Russia	Record high maximum temperature	11.0 C (51.8 F)	35 of 100 (Notable)
Redmond 2 W	United States	Record low minimum temperature	-11.7 C (10.9 F)	35 of 100 (Notable)
Ely AP	United States	Record low minimum temperature	-10.6 C (12.9 F)	35 of 100 (Notable)
Vancouver 4 NNE	United States	Record low minimum temperature	-2.2 C (28.0 F)	33 of 100 (Routine)
Bulwer (Tnk)	South Africa	Record daily precipitation	31.0 mm (1.2 in)	32 of 100 (Routine)
Tooele	United States	Record daily precipitation	38.4 mm (1.5 in)	32 of 100 (Routine)
Waterville	United States	Record low minimum temperature	-6.1 C (21.0 F)	32 of 100 (Routine)
Ibiapaba	Brazil	Record daily precipitation	64.0 mm (2.5 in)	31 of 100 (Routine)
Homer AP	United States	Record daily snowfall	8.1 cm (3.2 in)	31 of 100 (Routine)
Barra Do Mendes	Brazil	Record daily precipitation	43.3 mm (1.7 in)	30 of 100 (Routine)
Olathe 3E	United States	Record high maximum temperature	29.4 C (84.9 F)	30 of 100 (Routine)
Detroit	United States	Record low maximum temperature	4.4 C (39.9 F)	30 of 100 (Routine)
Tatarsk	Russia	Record low maximum temperature	-4.0 C (24.8 F)	29 of 100 (Routine)
Albacete Los Llanos	Spain	Record low minimum temperature	-1.8 C (28.8 F)	29 of 100 (Routine)
Seneca	United States	Record low maximum temperature	0.0 C (32.0 F)	29 of 100 (Routine)
Nova Olinda (Andreza)	Brazil	Record daily precipitation	84.5 mm (3.3 in)	28 of 100 (Routine)
North Bay A	Canada	Record daily precipitation	26.7 mm (1.1 in)	28 of 100 (Routine)
Barabinsk	Russia	Record low minimum temperature	-15.0 C (5.0 F)	28 of 100 (Routine)
Norris Madison Pwr House	United States	Record daily snowfall	20.3 cm (8.0 in)	28 of 100 (Routine)
Hatton 9 SE	United States	Record low minimum temperature	-8.3 C (17.1 F)	28 of 100 (Routine)
Donnybrook	Australia	Record high minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Parma Exp STN	United States	Record low maximum temperature	6.1 C (43.0 F)	27 of 100 (Routine)
Bend	United States	Record low minimum temperature	-12.8 C (9.0 F)	27 of 100 (Routine)
Grants Pass	United States	Record low minimum temperature	-3.9 C (25.0 F)	27 of 100 (Routine)
Odessa	United States	Record low minimum temperature	-7.8 C (18.0 F)	27 of 100 (Routine)
Matehuala (Smn)	Mexico	Record daily precipitation	26.9 mm (1.1 in)	26 of 100 (Routine)
Laersdrift (Pol)	South Africa	Record daily precipitation	29.0 mm (1.1 in)	26 of 100 (Routine)
McGill	United States	Record low maximum temperature	-2.2 C (28.0 F)	26 of 100 (Routine)
Waupaca	United States	Record high minimum temperature	10.0 C (50.0 F)	26 of 100 (Routine)
Kazalinsk	Kazakhstan	Record low minimum temperature	-1.6 C (29.1 F)	25 of 100 (Routine)
Poltava	Ukraine	Record high minimum temperature	9.7 C (49.5 F)	25 of 100 (Routine)
Melstone	United States	Record daily snowfall	7.6 cm (3.0 in)	25 of 100 (Routine)
Seattle UNIV of Washin	United States	Record low maximum temperature	7.8 C (46.0 F)	25 of 100 (Routine)
Waiahole 837	United States	Record daily precipitation	132.1 mm (5.2 in)	25 of 100 (Routine)
Katanning Comparison	Australia	Record high minimum temperature	16.4 C (61.5 F)	24 of 100 (Routine)
Simplicio Mendes	Brazil	Record daily precipitation	49.0 mm (1.9 in)	24 of 100 (Routine)
Acude Coremas	Brazil	Record daily precipitation	66.8 mm (2.6 in)	24 of 100 (Routine)
Karsakpaj	Kazakhstan	Record low minimum temperature	-7.6 C (18.3 F)	24 of 100 (Routine)
Sredny Vasjugan	Russia	Record low maximum temperature	-6.0 C (21.2 F)	24 of 100 (Routine)
Sioux Ctr 2 SE	United States	Record high maximum temperature	27.2 C (81.0 F)	24 of 100 (Routine)
Bridger 2 N	United States	Record daily snowfall	10.2 cm (4.0 in)	24 of 100 (Routine)
Crater Lake Nps HQ	United States	Record low minimum temperature	-16.7 C (1.9 F)	24 of 100 (Routine)
Riverside 7 SSW	United States	Record low maximum temperature	6.1 C (43.0 F)	23 of 100 (Routine)
Goldendale	United States	Record low maximum temperature	7.8 C (46.0 F)	23 of 100 (Routine)
Longmire Rainier Nps	United States	Record low maximum temperature	2.2 C (36.0 F)	23 of 100 (Routine)
Rainier Paradise Rs	United States	Record snow depth	769.6 cm (303.0 in)	23 of 100 (Routine)
Homer AP	United States	Record low maximum temperature	-3.9 C (25.0 F)	23 of 100 (Routine)
McGrath AP	United States	Record snow depth	119.4 cm (47.0 in)	23 of 100 (Routine)

Counts by Type and Timescale

470 records

Records set or tied on 18 April 1972 by type: Highest daily maximum 48, Lowest daily maximum 81, Highest daily minimum 54, Lowest daily minimum 105, Heaviest daily rainfall 143, Heaviest daily snowfall 23, Deepest snow cover 16.

Records on 18 April 1972 by type
Record type	Records
Highest daily maximum	48
Lowest daily maximum	81
Highest daily minimum	54
Lowest daily minimum	105
Heaviest daily rainfall	143
Heaviest daily snowfall	23
Deepest snow cover	16

Records on 18 April 1972 by timescale: all-time 0, monthly 12, daily 458.

How Much Records Were Beaten By

361 broken records

Margins by which the 361 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 386.0. Ties are not counted.

Top 20 by Significance

18 April 1972

Top 20 records on 18 April 1972 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1972	Contendas Do Sincora, BR	monthly rain	113.1 mm (4.5 in)	44.3 mm (1.7 in)	34 years	64 of 100 (Major)
18 April 1972	Zmeinogorsk, RU	daily rain	34.4 mm (1.4 in)	23.4 mm (0.9 in)	43 years	59 of 100 (Notable)
18 April 1972	El Chico, MX	daily rain	61.5 mm (2.4 in)	56.7 mm (2.2 in)	16 years	49 of 100 (Notable)
18 April 1972	Holy Cross, US	daily snowfall	21.8 cm (8.6 in)	14.2 cm (5.6 in)	48 years	49 of 100 (Notable)
18 April 1972	Porto, BR	daily rain	84.5 mm (3.3 in)	64.9 mm (2.6 in)	11 years	46 of 100 (Notable)
18 April 1972	Valdez WSO, US	daily snowfall	64.0 cm (25.2 in)	38.6 cm (15.2 in)	17 years	46 of 100 (Notable)
18 April 1972	Wagner (Itacira), BR	daily rain	64.2 mm (2.5 in)	52.0 mm (2.0 in)	9 years	45 of 100 (Notable)
18 April 1972	Langara, CA	daily rain	30.5 mm (1.2 in)	17.3 mm (0.7 in)	35 years	41 of 100 (Notable)
18 April 1972	Riverdale, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	56 years	40 of 100 (Notable)
18 April 1972	Tototlan, MX	daily rain	31.0 mm (1.2 in)	28.7 mm (1.1 in)	24 years	38 of 100 (Notable)
18 April 1972	Rangely 1E, US	daily high min	8.9 C (48.0 F)	4.5 C (8.1 F)	63 years	36 of 100 (Notable)
18 April 1972	Pineview Dam, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	37 years	36 of 100 (Notable)
18 April 1972	Kljuchi, RU	daily high max	11.0 C (51.8 F)	4.9 C (8.8 F)	54 years	35 of 100 (Notable)
18 April 1972	Redmond 2 W, US	monthly low min	-11.7 C (10.9 F)	0.6 C (1.1 F)	61 years	35 of 100 (Notable)
18 April 1972	Ely AP, US	daily low min	-10.6 C (12.9 F)	1.7 C (3.1 F)	78 years	35 of 100 (Notable)
18 April 1972	Vancouver 4 NNE, US	daily low min	-2.2 C (28.0 F)	1.1 C (2.0 F)	73 years	33 of 100 (Routine)
18 April 1972	Bulwer (Tnk), ZA	daily rain	31.0 mm (1.2 in)	13.7 mm (0.5 in)	45 years	32 of 100 (Routine)
18 April 1972	Tooele, US	daily rain	38.4 mm (1.5 in)	17.3 mm (0.7 in)	13 years	32 of 100 (Routine)
18 April 1972	Waterville, US	daily low min	-6.1 C (21.0 F)	0.5 C (0.9 F)	78 years	32 of 100 (Routine)
18 April 1972	Ibiapaba, BR	daily rain	64.0 mm (2.5 in)	30.5 mm (1.2 in)	27 years	31 of 100 (Routine)

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 1972

Records set or tied on this calendar date in each year from 1793 to 1972. 1972 had 470 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 1972-04-18: 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	339
50 to 100	12
100 to 150	5
150 to 200	2
200 to 250	0
250 to 300	1
300 to 350	0
350 to 400	2