Weather Records on 18 April 1941

496 weather records were set or tied worldwide on 18 April 1941. Highest significance: Meeker 5 W, US.

Key Facts for 18 April 1941

On 18 April 1941, 496 weather records were set or tied at long-record stations worldwide.
206 were record highs and 130 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 490 daily.
Meeker 5 W set a daily record precipitation of 81.8 mm (3.2 in) on 18 April 1941.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 467 records.

Record Map

496 stations

496 station records on 18 April 1941 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1941: highest significance records shown on the map
Station	Country	Type	Value	Significance
Meeker 5 W	United States	Record daily precipitation	81.8 mm (3.2 in)	53 of 100 (Notable)
Lansing	United States	Record daily precipitation	48.8 mm (1.9 in)	52 of 100 (Notable)
Leroy 5 WSW	United States	Record daily snowfall	22.9 cm (9.0 in)	51 of 100 (Notable)
Norris Madison Pwr House	United States	Record snow depth	45.7 cm (18.0 in)	50 of 100 (Notable)
St Joseph	United States	Record daily precipitation	82.0 mm (3.2 in)	49 of 100 (Notable)
Atchison	United States	Record daily precipitation	79.8 mm (3.1 in)	48 of 100 (Notable)
Viroqua	United States	Record daily precipitation	48.3 mm (1.9 in)	45 of 100 (Notable)
Holly	United States	Record daily snowfall	12.7 cm (5.0 in)	43 of 100 (Notable)
Hermann	United States	Record daily precipitation	75.4 mm (3.0 in)	42 of 100 (Notable)
Grand Meadow	United States	Record daily precipitation	46.7 mm (1.8 in)	36 of 100 (Notable)
Norman 3SSE	United States	Record daily precipitation	63.5 mm (2.5 in)	34 of 100 (Routine)
Bajramaly	Turkmenistan	Record daily precipitation	25.6 mm (1.0 in)	31 of 100 (Routine)
Geneva	United States	Record daily precipitation	28.4 mm (1.1 in)	31 of 100 (Routine)
Cascade 5 S	United States	Record snow depth	12.7 cm (5.0 in)	30 of 100 (Routine)
Cedar Rapids 2	United States	Record daily precipitation	56.1 mm (2.2 in)	28 of 100 (Routine)
Kamalpur	India	Record daily precipitation	51.8 mm (2.0 in)	27 of 100 (Routine)
Ashton 1N	United States	Record low minimum temperature	-11.7 C (10.9 F)	27 of 100 (Routine)
Grand River Lock	United States	Record daily precipitation	31.8 mm (1.3 in)	27 of 100 (Routine)
Hillsboro	United States	Record daily precipitation	68.1 mm (2.7 in)	27 of 100 (Routine)
Leroy 5 WSW	United States	Record daily precipitation	25.1 mm (1.0 in)	26 of 100 (Routine)
Flora 5 NW	United States	Record daily precipitation	37.3 mm (1.5 in)	26 of 100 (Routine)
Maquoketa	United States	Record daily precipitation	26.7 mm (1.1 in)	26 of 100 (Routine)
Springfield	United States	Record daily precipitation	54.1 mm (2.1 in)	26 of 100 (Routine)
Namdalseid	Norway	Record snow depth	32.0 cm (12.6 in)	25 of 100 (Routine)
Fayetteville	United States	Record daily precipitation	38.6 mm (1.5 in)	25 of 100 (Routine)
Postville	United States	Record daily precipitation	25.1 mm (1.0 in)	25 of 100 (Routine)
Bozeman Montana State UNIV	United States	Record low maximum temperature	-0.6 C (30.9 F)	25 of 100 (Routine)
Dillon U of Montana Western	United States	Record low maximum temperature	-0.6 C (30.9 F)	25 of 100 (Routine)
Madrid	United States	Record daily snowfall	27.9 cm (11.0 in)	25 of 100 (Routine)
Soldier Summit	United States	Record low minimum temperature	-13.9 C (7.0 F)	25 of 100 (Routine)
Ft Morgan	United States	Record daily snowfall	5.1 cm (2.0 in)	24 of 100 (Routine)
Hawthorne	United States	Record daily snowfall	27.9 cm (11.0 in)	24 of 100 (Routine)
Aledo	United States	Record daily precipitation	27.7 mm (1.1 in)	24 of 100 (Routine)
Delaware 3 WSW	United States	Record daily precipitation	25.1 mm (1.0 in)	24 of 100 (Routine)
Roy	United States	Record daily snowfall	10.2 cm (4.0 in)	24 of 100 (Routine)
Appleton	United States	Record daily precipitation	34.8 mm (1.4 in)	24 of 100 (Routine)
La Crosse River	United States	Record daily precipitation	34.3 mm (1.4 in)	24 of 100 (Routine)
Anderson 1 N	United States	Record high minimum temperature	20.6 C (69.1 F)	23 of 100 (Routine)
Winterset 4N	United States	Record daily precipitation	36.8 mm (1.4 in)	23 of 100 (Routine)
Rapelje	United States	Record snow depth	35.6 cm (14.0 in)	23 of 100 (Routine)
Concord	United States	Record high minimum temperature	10.6 C (51.1 F)	23 of 100 (Routine)
Meadow Valley Rs	United States	Record daily precipitation	30.7 mm (1.2 in)	23 of 100 (Routine)
Bloomington Indiana UNIV	United States	Record daily precipitation	41.1 mm (1.6 in)	22 of 100 (Routine)
Geraldine 6 SE	United States	Record daily snowfall	12.7 cm (5.0 in)	22 of 100 (Routine)
World Trade Ctr	United States	Record high minimum temperature	12.2 C (54.0 F)	22 of 100 (Routine)
Gila Bend 2SE	United States	Record low minimum temperature	-0.6 C (30.9 F)	21 of 100 (Routine)
Julesburg	United States	Record daily precipitation	35.3 mm (1.4 in)	21 of 100 (Routine)
Olney 2S	United States	Record daily precipitation	29.7 mm (1.2 in)	21 of 100 (Routine)
Cedar Rapids #1	United States	Record daily precipitation	38.9 mm (1.5 in)	21 of 100 (Routine)
Sigourney	United States	Record daily precipitation	25.7 mm (1.0 in)	21 of 100 (Routine)
Apache	United States	Record daily precipitation	26.2 mm (1.0 in)	21 of 100 (Routine)
Farmington	United States	Record low minimum temperature	-5.6 C (21.9 F)	21 of 100 (Routine)
Loa	United States	Record low maximum temperature	3.3 C (37.9 F)	21 of 100 (Routine)
Mather 3 NW	United States	Record daily precipitation	36.3 mm (1.4 in)	21 of 100 (Routine)
Rapelje	United States	Record daily precipitation	11.9 mm (0.5 in)	20 of 100 (Routine)
Purdum	United States	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Eureka	United States	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Brandon Cda	Canada	Record daily snowfall	3.8 cm (1.5 in)	20 of 100 (Routine)
Matatiele	South Africa	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Delta	United States	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)

Counts by Type and Timescale

496 records

Records set or tied on 18 April 1941 by type: Highest daily maximum 86, Lowest daily maximum 78, Highest daily minimum 120, Lowest daily minimum 52, Heaviest daily rainfall 133, Heaviest daily snowfall 21, Deepest snow cover 6.

Records on 18 April 1941 by type
Record type	Records
Highest daily maximum	86
Lowest daily maximum	78
Highest daily minimum	120
Lowest daily minimum	52
Heaviest daily rainfall	133
Heaviest daily snowfall	21
Deepest snow cover	6

Records on 18 April 1941 by timescale: all-time 0, monthly 6, daily 490.

How Much Records Were Beaten By

387 broken records

Margins by which the 387 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 432.0. Ties are not counted.

Top 20 by Significance

18 April 1941

Top 20 records on 18 April 1941 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1941	Meeker 5 W, US	daily rain	81.8 mm (3.2 in)	66.3 mm (2.6 in)	32 years	53 of 100 (Notable)
18 April 1941	Lansing, US	daily rain	48.8 mm (1.9 in)	36.6 mm (1.4 in)	27 years	52 of 100 (Notable)
18 April 1941	Leroy 5 WSW, US	daily snowfall	22.9 cm (9.0 in)	21.9 cm (8.6 in)	34 years	51 of 100 (Notable)
18 April 1941	Norris Madison Pwr House, US	daily snow depth	45.7 cm (18.0 in)	43.2 cm (17.0 in)	24 years	50 of 100 (Notable)
18 April 1941	St Joseph, US	monthly rain	82.0 mm (3.2 in)	25.1 mm (1.0 in)	28 years	49 of 100 (Notable)
18 April 1941	Atchison, US	daily rain	79.8 mm (3.1 in)	54.4 mm (2.1 in)	14 years	48 of 100 (Notable)
18 April 1941	Viroqua, US	daily rain	48.3 mm (1.9 in)	28.7 mm (1.1 in)	32 years	45 of 100 (Notable)
18 April 1941	Holly, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	46 years	43 of 100 (Notable)
18 April 1941	Hermann, US	daily rain	75.4 mm (3.0 in)	43.4 mm (1.7 in)	6 years	42 of 100 (Notable)
18 April 1941	Grand Meadow, US	daily rain	46.7 mm (1.8 in)	26.9 mm (1.1 in)	2 years	36 of 100 (Notable)
18 April 1941	Norman 3SSE, US	daily rain	63.5 mm (2.5 in)	36.6 mm (1.4 in)	14 years	34 of 100 (Routine)
18 April 1941	Bajramaly, TM	daily rain	25.6 mm (1.0 in)	12.7 mm (0.5 in)	4 years	31 of 100 (Routine)
18 April 1941	Geneva, US	daily rain	28.4 mm (1.1 in)	17.5 mm (0.7 in)	38 years	31 of 100 (Routine)
18 April 1941	Cascade 5 S, US	daily snow depth	12.7 cm (5.0 in)	10.2 cm (4.0 in)	14 years	30 of 100 (Routine)
18 April 1941	Cedar Rapids 2, US	monthly rain	56.1 mm (2.2 in)	7.6 mm (0.30 in)	21 years	28 of 100 (Routine)
18 April 1941	Kamalpur, IN	daily rain	51.8 mm (2.0 in)	20.0 mm (0.8 in)	32 years	27 of 100 (Routine)
18 April 1941	Ashton 1N, US	daily low min	-11.7 C (10.9 F)	4.5 C (8.1 F)	43 years	27 of 100 (Routine)
18 April 1941	Grand River Lock, US	daily rain	31.8 mm (1.3 in)	8.4 mm (0.33 in)	44 years	27 of 100 (Routine)
18 April 1941	Hillsboro, US	monthly rain	68.1 mm (2.7 in)	4.6 mm (0.18 in)	31 years	27 of 100 (Routine)
18 April 1941	Leroy 5 WSW, US	daily rain	25.1 mm (1.0 in)	13.9 mm (0.5 in)	35 years	26 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 1941

Records set or tied on this calendar date in each year from 1793 to 1941. 1941 had 496 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 1941-04-18: 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	380
100 to 200	4
200 to 300	2
300 to 400	0
400 to 500	1