Weather Records on 18 April 1943

298 weather records were set or tied worldwide on 18 April 1943. Highest significance: Maristova, NO.

Key Facts for 18 April 1943

On 18 April 1943, 298 weather records were set or tied at long-record stations worldwide.
107 were record highs and 64 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 15 monthly and 283 daily.
Maristova set a monthly record daily precipitation of 51.0 mm (2.0 in) on 18 April 1943.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 468 records.

Record Map

298 stations

298 station records on 18 April 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Maristova	Norway	Record daily precipitation	51.0 mm (2.0 in)	54 of 100 (Notable)
Rpf 672 Mile	Australia	Record daily precipitation	53.8 mm (2.1 in)	51 of 100 (Notable)
Tallering	Australia	Record daily precipitation	50.8 mm (2.0 in)	37 of 100 (Notable)
Uccle	Belgium	Record high maximum temperature	24.0 C (75.2 F)	35 of 100 (Notable)
Branxholm (Stoke Street)	Australia	Record daily precipitation	29.7 mm (1.2 in)	34 of 100 (Routine)
Northdown (Hamley)	Australia	Record daily precipitation	31.5 mm (1.2 in)	32 of 100 (Routine)
Jena Sternwarte	Germany	Record high minimum temperature	14.2 C (57.6 F)	32 of 100 (Routine)
Talladega	United States	Record daily precipitation	77.0 mm (3.0 in)	32 of 100 (Routine)
Rock House	United States	Record daily precipitation	101.6 mm (4.0 in)	31 of 100 (Routine)
Karlsruhe	Germany	Record high maximum temperature	25.7 C (78.3 F)	30 of 100 (Routine)
Midnapore	India	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Susendal	Norway	Record snow depth	200.0 cm (78.7 in)	28 of 100 (Routine)
Augsburg (Sankt Stephan)	Germany	Record high minimum temperature	10.8 C (51.4 F)	27 of 100 (Routine)
Balurghat	India	Record daily precipitation	39.4 mm (1.6 in)	27 of 100 (Routine)
Adairsville	United States	Record daily precipitation	40.9 mm (1.6 in)	27 of 100 (Routine)
Castelo Do Piaui (Marvao)	Brazil	Record daily precipitation	69.0 mm (2.7 in)	26 of 100 (Routine)
Haringhata	India	Record daily precipitation	55.9 mm (2.2 in)	26 of 100 (Routine)
Greenville Dwtn AP	United States	Record daily precipitation	42.9 mm (1.7 in)	26 of 100 (Routine)
Frankford (Rossville)	Australia	Record daily precipitation	33.8 mm (1.3 in)	25 of 100 (Routine)
Hull	United Kingdom	Record high minimum temperature	11.7 C (53.1 F)	25 of 100 (Routine)
Butler	United States	Record daily precipitation	45.0 mm (1.8 in)	25 of 100 (Routine)
Arthur City	United States	Record daily precipitation	32.3 mm (1.3 in)	24 of 100 (Routine)
Basudevpur (Eram)	India	Record daily precipitation	40.6 mm (1.6 in)	23 of 100 (Routine)
Tufanganj	India	Record daily precipitation	39.4 mm (1.6 in)	23 of 100 (Routine)
Duiwelskloof (Mun)	South Africa	Record daily precipitation	25.7 mm (1.0 in)	23 of 100 (Routine)
Collingwood	Canada	Record low minimum temperature	-3.9 C (25.0 F)	22 of 100 (Routine)
Halle	Germany	Record high minimum temperature	13.7 C (56.7 F)	22 of 100 (Routine)
Aachen	Germany	Record high minimum temperature	13.0 C (55.4 F)	22 of 100 (Routine)
Basirhat	India	Record daily precipitation	35.1 mm (1.4 in)	22 of 100 (Routine)
Carrabelle 1 NNW	United States	Record daily precipitation	43.7 mm (1.7 in)	22 of 100 (Routine)
Lakeside	United States	Record high minimum temperature	10.0 C (50.0 F)	22 of 100 (Routine)
Le Bourget	France	Record high maximum temperature	27.3 C (81.1 F)	21 of 100 (Routine)
Clarendon	United States	Record daily precipitation	47.5 mm (1.9 in)	21 of 100 (Routine)
Concord	United States	Record daily precipitation	54.6 mm (2.1 in)	21 of 100 (Routine)
Columbia	United States	Record daily precipitation	50.3 mm (2.0 in)	21 of 100 (Routine)
Vicksburg	United States	Record daily precipitation	49.3 mm (1.9 in)	21 of 100 (Routine)
Launceston (Pumping Station)	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Bunnawarra	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Brid Farm	Australia	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Srimadhopur	India	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Coonalpyn	Australia	Record daily precipitation	6.9 mm (0.27 in)	20 of 100 (Routine)
Scottsdale	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Westbury (Valley View)	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Barnong	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Carrick (Oaks Road)	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Castra Central	Australia	Record daily precipitation	44.5 mm (1.8 in)	20 of 100 (Routine)
Cressy Post Office	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Devonport Harbour Master	Australia	Record daily precipitation	25.9 mm (1.0 in)	20 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record high minimum temperature	14.4 C (57.9 F)	20 of 100 (Routine)
Wrixum/Fohr	Germany	Record high minimum temperature	8.0 C (46.4 F)	20 of 100 (Routine)
Irkutsk	Russia	Record high maximum temperature	21.5 C (70.7 F)	20 of 100 (Routine)
Nebo	South Africa	Record daily precipitation	26.4 mm (1.0 in)	20 of 100 (Routine)
Valley Head	United States	Record low maximum temperature	14.4 C (57.9 F)	20 of 100 (Routine)
Rowlesburg 1	United States	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Latrobe (Coal Road)	Australia	Record daily precipitation	29.5 mm (1.2 in)	19 of 100 (Routine)
Wien	Austria	Record high minimum temperature	15.3 C (59.5 F)	19 of 100 (Routine)
Le Bourget	France	Record high minimum temperature	10.3 C (50.5 F)	19 of 100 (Routine)
Marnai	India	Record daily precipitation	35.8 mm (1.4 in)	19 of 100 (Routine)
Benipatti	India	Record daily precipitation	19.1 mm (0.8 in)	19 of 100 (Routine)
Hafslo	Norway	Record daily precipitation	25.2 mm (1.0 in)	19 of 100 (Routine)

Counts by Type and Timescale

298 records

Records set or tied on 18 April 1943 by type: Highest daily maximum 47, Lowest daily maximum 22, Highest daily minimum 60, Lowest daily minimum 42, Heaviest daily rainfall 118, Heaviest daily snowfall 4, Deepest snow cover 5.

Records on 18 April 1943 by type
Record type	Records
Highest daily maximum	47
Lowest daily maximum	22
Highest daily minimum	60
Lowest daily minimum	42
Heaviest daily rainfall	118
Heaviest daily snowfall	4
Deepest snow cover	5

Records on 18 April 1943 by timescale: all-time 0, monthly 15, daily 283.

How Much Records Were Beaten By

244 broken records

Margins by which the 244 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 420.0. Ties are not counted.

Top 20 by Significance

18 April 1943

Top 20 records on 18 April 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1943	Maristova, NO	monthly rain	51.0 mm (2.0 in)	21.0 mm (0.8 in)	0 years	54 of 100 (Notable)
18 April 1943	Rpf 672 Mile, AU	daily rain	53.8 mm (2.1 in)	53.8 mm (2.1 in)	29 years	51 of 100 (Notable)
18 April 1943	Tallering, AU	monthly rain	50.8 mm (2.0 in)	12.7 mm (0.5 in)	35 years	37 of 100 (Notable)
18 April 1943	Uccle, BE	daily high max	24.0 C (75.2 F)	1.0 C (1.8 F)	77 years	35 of 100 (Notable)
18 April 1943	Branxholm (Stoke Street), AU	daily rain	29.7 mm (1.2 in)	24.4 mm (1.0 in)	30 years	34 of 100 (Routine)
18 April 1943	Northdown (Hamley), AU	daily rain	31.5 mm (1.2 in)	19.8 mm (0.8 in)	30 years	32 of 100 (Routine)
18 April 1943	Jena Sternwarte, DE	monthly high min	14.2 C (57.6 F)	0.5 C (0.9 F)	39 years	32 of 100 (Routine)
18 April 1943	Talladega, US	daily rain	77.0 mm (3.0 in)	27.5 mm (1.1 in)	41 years	32 of 100 (Routine)
18 April 1943	Rock House, US	daily rain	101.6 mm (4.0 in)	43.4 mm (1.7 in)	18 years	31 of 100 (Routine)
18 April 1943	Karlsruhe, DE	daily high max	25.7 C (78.3 F)	3.5 C (6.3 F)	57 years	30 of 100 (Routine)
18 April 1943	Midnapore, IN	daily rain	30.5 mm (1.2 in)	16.5 mm (0.6 in)	41 years	30 of 100 (Routine)
18 April 1943	Susendal, NO	daily snow depth	200.0 cm (78.7 in)	42.0 cm (16.5 in)	40 years	28 of 100 (Routine)
18 April 1943	Augsburg (Sankt Stephan), DE	daily high min	10.8 C (51.4 F)	1.2 C (2.2 F)	62 years	27 of 100 (Routine)
18 April 1943	Balurghat, IN	daily rain	39.4 mm (1.6 in)	18.1 mm (0.7 in)	30 years	27 of 100 (Routine)
18 April 1943	Adairsville, US	daily rain	40.9 mm (1.6 in)	17.5 mm (0.7 in)	40 years	27 of 100 (Routine)
18 April 1943	Castelo Do Piaui (Marvao), BR	daily rain	69.0 mm (2.7 in)	34.9 mm (1.4 in)	8 years	26 of 100 (Routine)
18 April 1943	Haringhata, IN	monthly rain	55.9 mm (2.2 in)	8.9 mm (0.35 in)	17 years	26 of 100 (Routine)
18 April 1943	Greenville Dwtn AP, US	daily rain	42.9 mm (1.7 in)	7.3 mm (0.29 in)	52 years	26 of 100 (Routine)
18 April 1943	Frankford (Rossville), AU	daily rain	33.8 mm (1.3 in)	8.4 mm (0.33 in)	44 years	25 of 100 (Routine)
18 April 1943	Hull, GB	monthly high min	11.7 C (53.1 F)	1.1 C (2.0 F)	31 years	25 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 1943

Records set or tied on this calendar date in each year from 1793 to 1943. 1943 had 298 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 1943-04-18: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 100	242
100 to 200	1
200 to 300	0
300 to 400	0
400 to 500	1