Weather Records on 27 April 1943

374 weather records were set or tied worldwide on 27 April 1943. Highest significance: Ponce 4 E, PR.

Key Facts for 27 April 1943

On 27 April 1943, 374 weather records were set or tied at long-record stations worldwide.
120 were record highs and 32 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 18 monthly and 356 daily.
Ponce 4 E set a monthly record daily precipitation of 143.5 mm (5.6 in) on 27 April 1943.
Across 158 earlier years (1795 to 2026) the same calendar date averaged 476 records.

Record Map

374 stations

374 station records on 27 April 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 April 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ponce 4 E	Puerto Rico [United States]	Record daily precipitation	143.5 mm (5.6 in)	59 of 100 (Notable)
Guayama 1SW	Puerto Rico [United States]	Record daily precipitation	177.3 mm (7.0 in)	53 of 100 (Notable)
Vryburg (Pol)	South Africa	Record daily precipitation	39.4 mm (1.6 in)	52 of 100 (Notable)
East Park Rsvr	United States	Record daily precipitation	31.8 mm (1.3 in)	49 of 100 (Notable)
Tiskilwa 2 SE	United States	Record daily precipitation	79.2 mm (3.1 in)	48 of 100 (Notable)
Wayne	United States	Record daily precipitation	42.2 mm (1.7 in)	48 of 100 (Notable)
Dwight	United States	Record daily precipitation	57.9 mm (2.3 in)	46 of 100 (Notable)
Fairview	United States	Record daily precipitation	42.4 mm (1.7 in)	46 of 100 (Notable)
Minonk	United States	Record daily precipitation	73.9 mm (2.9 in)	46 of 100 (Notable)
Galesburg	United States	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Le Claire	United States	Record daily precipitation	45.7 mm (1.8 in)	43 of 100 (Notable)
Morris 1NW	United States	Record daily precipitation	44.2 mm (1.7 in)	42 of 100 (Notable)
Healdsburg	United States	Record daily precipitation	46.0 mm (1.8 in)	41 of 100 (Notable)
Jamestown	United States	Record daily precipitation	32.3 mm (1.3 in)	41 of 100 (Notable)
Chatham 2	Canada	Record daily precipitation	30.0 mm (1.2 in)	39 of 100 (Notable)
Ukiah	United States	Record daily precipitation	38.1 mm (1.5 in)	39 of 100 (Notable)
La Salle Peru	United States	Record daily precipitation	62.5 mm (2.5 in)	39 of 100 (Notable)
Streator 2SE	United States	Record daily precipitation	80.8 mm (3.2 in)	39 of 100 (Notable)
Pontiac	United States	Record daily precipitation	68.6 mm (2.7 in)	38 of 100 (Notable)
Aledo	United States	Record daily precipitation	43.2 mm (1.7 in)	37 of 100 (Notable)
Mt Pleasant 1 SW	United States	Record daily precipitation	45.7 mm (1.8 in)	36 of 100 (Notable)
Ponce 4 E	Puerto Rico [United States]	Record low maximum temperature	26.7 C (80.1 F)	35 of 100 (Notable)
Angola	United States	Record daily precipitation	35.6 mm (1.4 in)	35 of 100 (Notable)
S Bend AP	United States	Record daily precipitation	28.4 mm (1.1 in)	35 of 100 (Notable)
Sycamore	United States	Record daily precipitation	27.4 mm (1.1 in)	34 of 100 (Routine)
Valparaiso Wtr Wks	United States	Record daily precipitation	46.7 mm (1.8 in)	34 of 100 (Routine)
Dixon Wwtp	United States	Record daily precipitation	30.5 mm (1.2 in)	33 of 100 (Routine)
Mt Clemens Ang Base	United States	Record daily precipitation	27.2 mm (1.1 in)	33 of 100 (Routine)
Wallaceburg	Canada	Record daily precipitation	32.0 mm (1.3 in)	32 of 100 (Routine)
Peterborough	Canada	Record daily snowfall	11.2 cm (4.4 in)	32 of 100 (Routine)
Geneseo	United States	Record daily precipitation	76.2 mm (3.0 in)	32 of 100 (Routine)
Cidra 1 E	Puerto Rico [United States]	Record daily precipitation	87.9 mm (3.5 in)	31 of 100 (Routine)
Orillia	Canada	Record daily snowfall	9.1 cm (3.6 in)	30 of 100 (Routine)
Isabela Substn	Puerto Rico [United States]	Record daily precipitation	77.0 mm (3.0 in)	30 of 100 (Routine)
Paw Paw 2S	United States	Record daily precipitation	30.0 mm (1.2 in)	29 of 100 (Routine)
Adrian 2 NNE	United States	Record daily precipitation	33.8 mm (1.3 in)	29 of 100 (Routine)
Monmouth	United States	Record daily precipitation	32.5 mm (1.3 in)	28 of 100 (Routine)
Ottawa 4SW	United States	Record daily precipitation	50.8 mm (2.0 in)	28 of 100 (Routine)
Hillsdale	United States	Record daily precipitation	34.0 mm (1.3 in)	28 of 100 (Routine)
Lisboa Geofisica	Portugal	Record high maximum temperature	28.1 C (82.6 F)	27 of 100 (Routine)
Cloverdale	United States	Record daily precipitation	31.2 mm (1.2 in)	27 of 100 (Routine)
Oregon Wtr Wks	United States	Record daily precipitation	33.5 mm (1.3 in)	27 of 100 (Routine)
Santana Do Matos	Brazil	Record daily precipitation	53.0 mm (2.1 in)	26 of 100 (Routine)
Turuvekere	India	Record daily precipitation	40.1 mm (1.6 in)	26 of 100 (Routine)
San German 4 W	Puerto Rico [United States]	Record low maximum temperature	27.2 C (81.0 F)	26 of 100 (Routine)
Marengo	United States	Record daily precipitation	27.9 mm (1.1 in)	26 of 100 (Routine)
Walnut	United States	Record daily precipitation	39.1 mm (1.5 in)	26 of 100 (Routine)
Howe	United States	Record daily precipitation	31.5 mm (1.2 in)	26 of 100 (Routine)
Luiz Correia	Brazil	Record daily precipitation	52.1 mm (2.1 in)	25 of 100 (Routine)
Tahoe City	United States	Record daily precipitation	32.0 mm (1.3 in)	25 of 100 (Routine)
Roberts 3 N	United States	Record daily precipitation	49.5 mm (1.9 in)	24 of 100 (Routine)
Collegeville St Joe AP	United States	Record daily precipitation	38.9 mm (1.5 in)	24 of 100 (Routine)
Huntingburg AP	United States	Record high minimum temperature	21.7 C (71.1 F)	24 of 100 (Routine)
Earlington	United States	Record high minimum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Winchendon	United States	Record daily precipitation	30.2 mm (1.2 in)	24 of 100 (Routine)
Montpelier	United States	Record daily precipitation	28.2 mm (1.1 in)	24 of 100 (Routine)
Saint John	Canada	Record daily snowfall	5.3 cm (2.1 in)	22 of 100 (Routine)
Elgin Water	United States	Record daily precipitation	25.9 mm (1.0 in)	22 of 100 (Routine)
Washington	United States	Record daily precipitation	30.5 mm (1.2 in)	22 of 100 (Routine)
Harihar	India	Record daily precipitation	45.7 mm (1.8 in)	21 of 100 (Routine)

Counts by Type and Timescale

374 records

Records set or tied on 27 April 1943 by type: Highest daily maximum 48, Lowest daily maximum 15, Highest daily minimum 72, Lowest daily minimum 17, Heaviest daily rainfall 203, Heaviest daily snowfall 17, Deepest snow cover 2.

Records on 27 April 1943 by type
Record type	Records
Highest daily maximum	48
Lowest daily maximum	15
Highest daily minimum	72
Lowest daily minimum	17
Heaviest daily rainfall	203
Heaviest daily snowfall	17
Deepest snow cover	2

Records on 27 April 1943 by timescale: all-time 0, monthly 18, daily 356.

How Much Records Were Beaten By

303 broken records

Margins by which the 303 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 130.0. Ties are not counted.

Top 20 by Significance

27 April 1943

Top 20 records on 27 April 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 April 1943	Ponce 4 E, PR	monthly rain	143.5 mm (5.6 in)	76.4 mm (3.0 in)	18 years	59 of 100 (Notable)
27 April 1943	Guayama 1SW, PR	monthly rain	177.3 mm (7.0 in)	79.5 mm (3.1 in)	0 years	53 of 100 (Notable)
27 April 1943	Vryburg (Pol), ZA	daily rain	39.4 mm (1.6 in)	37.9 mm (1.5 in)	30 years	52 of 100 (Notable)
27 April 1943	East Park Rsvr, US	daily rain	31.8 mm (1.3 in)	28.5 mm (1.1 in)	32 years	49 of 100 (Notable)
27 April 1943	Tiskilwa 2 SE, US	monthly rain	79.2 mm (3.1 in)	26.1 mm (1.0 in)	22 years	48 of 100 (Notable)
27 April 1943	Wayne, US	daily rain	42.2 mm (1.7 in)	33.3 mm (1.3 in)	22 years	48 of 100 (Notable)
27 April 1943	Dwight, US	daily rain	57.9 mm (2.3 in)	46.5 mm (1.8 in)	6 years	46 of 100 (Notable)
27 April 1943	Fairview, US	daily rain	42.4 mm (1.7 in)	31.2 mm (1.2 in)	21 years	46 of 100 (Notable)
27 April 1943	Minonk, US	monthly rain	73.9 mm (2.9 in)	23.1 mm (0.9 in)	23 years	46 of 100 (Notable)
27 April 1943	Galesburg, US	daily rain	35.6 mm (1.4 in)	27.2 mm (1.1 in)	43 years	43 of 100 (Notable)
27 April 1943	Le Claire, US	daily rain	45.7 mm (1.8 in)	29.2 mm (1.1 in)	21 years	43 of 100 (Notable)
27 April 1943	Morris 1NW, US	daily rain	44.2 mm (1.7 in)	31.8 mm (1.3 in)	8 years	42 of 100 (Notable)
27 April 1943	Healdsburg, US	daily rain	46.0 mm (1.8 in)	29.2 mm (1.1 in)	48 years	41 of 100 (Notable)
27 April 1943	Jamestown, US	daily rain	32.3 mm (1.3 in)	23.7 mm (0.9 in)	16 years	41 of 100 (Notable)
27 April 1943	Chatham 2, CA	daily rain	30.0 mm (1.2 in)	14.8 mm (0.6 in)	49 years	39 of 100 (Notable)
27 April 1943	Ukiah, US	daily rain	38.1 mm (1.5 in)	23.6 mm (0.9 in)	36 years	39 of 100 (Notable)
27 April 1943	La Salle Peru, US	monthly rain	62.5 mm (2.5 in)	11.7 mm (0.5 in)	41 years	39 of 100 (Notable)
27 April 1943	Streator 2SE, US	monthly rain	80.8 mm (3.2 in)	21.6 mm (0.9 in)	5 years	39 of 100 (Notable)
27 April 1943	Pontiac, US	monthly rain	68.6 mm (2.7 in)	19.1 mm (0.8 in)	10 years	38 of 100 (Notable)
27 April 1943	Aledo, US	daily rain	43.2 mm (1.7 in)	25.7 mm (1.0 in)	21 years	37 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

1795 to 1943

Records set or tied on this calendar date in each year from 1795 to 1943. 1943 had 374 records.

Counts for years before the ledger starts come from the same station rules.

Records on 04-27 in each year
Year	Records
1795	1
1801	1
1802	2
1812	1
1814	1
1817	3
1828	1
1838	1
1841	1
1843	1
1852	1
1853	1
1855	1
1856	1
1857	1
1862	2
1873	2
1874	4
1879	1
1882	2
1884	2
1885	5
1887	1
1888	4
1890	3
1891	1
1892	3
1893	3
1894	7
1895	2
1896	3
1897	4
1899	5
1900	4
1901	3
1903	5
1904	11
1905	16
1906	13
1907	31
1908	27
1909	51
1910	8
1911	37
1912	5
1913	73
1914	19
1915	77
1916	36
1917	47
1918	55
1919	69
1920	44
1921	71
1922	151
1923	110
1924	103
1925	113
1926	287
1927	114
1928	404
1929	71
1930	80
1931	454
1932	331
1933	328
1934	275
1935	227
1936	97
1937	377
1938	467
1939	212
1940	268
1941	361
1942	569
1943	374
1944	214
1945	476
1946	512
1947	373
1948	535
1949	516
1950	617
1951	409
1952	722
1953	651
1954	875
1955	937
1956	685
1957	552
1958	461
1959	470
1960	684
1961	313
1962	741
1963	768
1964	711
1965	568
1966	1,282
1967	733
1968	372
1969	543
1970	1,142
1971	758
1972	645
1973	1,188
1974	926
1975	820
1976	810
1977	801
1978	694
1979	758
1980	706
1981	1,148
1982	685
1983	921
1984	1,754
1985	1,141
1986	1,225
1987	1,482
1988	893
1989	1,320
1990	1,321
1991	1,028
1992	2,163
1993	1,285
1994	1,614
1995	806
1996	1,034
1997	1,588
1998	872
1999	544
2000	1,171
2001	1,138
2002	1,024
2003	840
2004	937
2005	675
2006	705
2007	1,055
2008	1,032
2009	1,299
2010	751
2011	1,291
2012	1,015
2013	568
2014	656
2015	608
2016	755
2017	918
2018	407
2019	626
2020	497
2021	450
2022	567
2023	536
2024	574
2025	659
2026	450

Download the Data

Data for records on 1943-04-27: 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 20	268
20 to 40	30
40 to 60	1
60 to 80	2
80 to 100	0
100 to 120	1
120 to 140	1