Weather Records on 27 April 1938

467 weather records were set or tied worldwide on 27 April 1938. Highest significance: Gann Valley 4NW, US.

Key Facts for 27 April 1938

On 27 April 1938, 467 weather records were set or tied at long-record stations worldwide.
276 were record highs and 25 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 25 monthly and 442 daily.
Gann Valley 4NW set a daily record precipitation of 50.8 mm (2.0 in) on 27 April 1938.
Across 158 earlier years (1795 to 2026) the same calendar date averaged 475 records.

Record Map

467 stations

467 station records on 27 April 1938 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 April 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Gann Valley 4NW	United States	Record daily precipitation	50.8 mm (2.0 in)	52 of 100 (Notable)
Purdum	United States	Record daily precipitation	59.4 mm (2.3 in)	47 of 100 (Notable)
Brainerd	United States	Record daily precipitation	64.0 mm (2.5 in)	46 of 100 (Notable)
Halsey 2 W	United States	Record daily precipitation	55.1 mm (2.2 in)	44 of 100 (Notable)
Savanne	Canada	Record daily precipitation	50.0 mm (2.0 in)	42 of 100 (Notable)
Alva 1W	United States	Record daily precipitation	78.0 mm (3.1 in)	38 of 100 (Notable)
Forestburg 4 NNE	United States	Record daily precipitation	52.1 mm (2.1 in)	38 of 100 (Notable)
Redfield	United States	Record daily precipitation	39.6 mm (1.6 in)	38 of 100 (Notable)
Vaikom	India	Record daily precipitation	74.7 mm (2.9 in)	36 of 100 (Notable)
Raton	United States	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Madrid	United States	Record daily precipitation	63.8 mm (2.5 in)	35 of 100 (Notable)
Weissenburg	Germany	Record daily precipitation	41.6 mm (1.6 in)	34 of 100 (Routine)
Sherthala	India	Record daily precipitation	114.3 mm (4.5 in)	34 of 100 (Routine)
Anthony	United States	Record daily precipitation	55.9 mm (2.2 in)	34 of 100 (Routine)
Norwich	United States	Record daily precipitation	56.4 mm (2.2 in)	33 of 100 (Routine)
De Smet	United States	Record daily precipitation	36.8 mm (1.4 in)	33 of 100 (Routine)
Simcoe	Canada	Record high maximum temperature	28.9 C (84.0 F)	32 of 100 (Routine)
Geryville (El-Bayadh)	Algeria	Record low maximum temperature	9.0 C (48.2 F)	31 of 100 (Routine)
Leroy 5 WSW	United States	Record daily precipitation	43.2 mm (1.7 in)	31 of 100 (Routine)
Port Dover	Canada	Record high maximum temperature	27.8 C (82.0 F)	30 of 100 (Routine)
Holyoke	United States	Record daily precipitation	33.8 mm (1.3 in)	30 of 100 (Routine)
Kimball 2NE	United States	Record daily precipitation	34.5 mm (1.4 in)	30 of 100 (Routine)
Academy 2NE	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Pembroke Eddy Match	Canada	Record high minimum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Chicoutimi	Canada	Record daily precipitation	31.2 mm (1.2 in)	29 of 100 (Routine)
Orleans	United States	Record daily precipitation	27.2 mm (1.1 in)	29 of 100 (Routine)
Edgewater	United States	Record daily precipitation	35.1 mm (1.4 in)	29 of 100 (Routine)
Pala	India	Record daily precipitation	75.7 mm (3.0 in)	28 of 100 (Routine)
Milaca	United States	Record high minimum temperature	16.1 C (61.0 F)	28 of 100 (Routine)
Willmar Wwtp	United States	Record high minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Bancroft	United States	Record high minimum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Aberdeen	United States	Record daily precipitation	57.9 mm (2.3 in)	28 of 100 (Routine)
Laghouat	Algeria	Record low maximum temperature	11.0 C (51.8 F)	27 of 100 (Routine)
Bathurst Gaol	Australia	Record low maximum temperature	10.7 C (51.3 F)	27 of 100 (Routine)
Salzburg	Austria	Record low minimum temperature	-1.0 C (30.2 F)	27 of 100 (Routine)
Sfax El-Maou	Tunisia	Record low maximum temperature	14.0 C (57.2 F)	27 of 100 (Routine)
Sandy Lake Dam Libby	United States	Record daily precipitation	33.0 mm (1.3 in)	27 of 100 (Routine)
Collegeville St John's	United States	Record high minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Palasbari	India	Record daily precipitation	66.0 mm (2.6 in)	25 of 100 (Routine)
Woodward	United States	Record daily precipitation	62.5 mm (2.5 in)	25 of 100 (Routine)
Pipestone	United States	Record high minimum temperature	16.1 C (61.0 F)	24 of 100 (Routine)
Ainsworth	United States	Record daily precipitation	41.1 mm (1.6 in)	24 of 100 (Routine)
Menard	United States	Record daily precipitation	30.5 mm (1.2 in)	24 of 100 (Routine)
Milwaukee Wb City	United States	Record high maximum temperature	28.3 C (82.9 F)	24 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record high minimum temperature	16.1 C (61.0 F)	24 of 100 (Routine)
Ridgetown	Canada	Record high maximum temperature	27.8 C (82.0 F)	23 of 100 (Routine)
Stratford	Canada	Record high maximum temperature	28.3 C (82.9 F)	23 of 100 (Routine)
Malayattur	India	Record daily precipitation	67.3 mm (2.6 in)	23 of 100 (Routine)
E Tawas	United States	Record high maximum temperature	29.4 C (84.9 F)	23 of 100 (Routine)
Highmore	United States	Record daily precipitation	37.6 mm (1.5 in)	23 of 100 (Routine)
Marnai	India	Record daily precipitation	76.7 mm (3.0 in)	22 of 100 (Routine)
Mayaguez City	Puerto Rico [United States]	Record daily precipitation	30.5 mm (1.2 in)	22 of 100 (Routine)
Ironwood	United States	Record high minimum temperature	16.7 C (62.1 F)	22 of 100 (Routine)
Fergus Falls	United States	Record daily precipitation	27.4 mm (1.1 in)	22 of 100 (Routine)
La Delle 7 NE	United States	Record daily precipitation	38.6 mm (1.5 in)	22 of 100 (Routine)
Blackville Post Office	Australia	Record daily precipitation	32.8 mm (1.3 in)	21 of 100 (Routine)
Coldwater	United States	Record daily precipitation	34.5 mm (1.4 in)	21 of 100 (Routine)
Detroit Lakes 1 NNE	United States	Record daily precipitation	29.0 mm (1.1 in)	21 of 100 (Routine)
Winnibigoshish Dam	United States	Record daily precipitation	25.9 mm (1.0 in)	21 of 100 (Routine)
Bridgeport	United States	Record daily precipitation	27.4 mm (1.1 in)	21 of 100 (Routine)

Counts by Type and Timescale

467 records

Records set or tied on 27 April 1938 by type: Highest daily maximum 162, Lowest daily maximum 14, Highest daily minimum 114, Lowest daily minimum 11, Heaviest daily rainfall 161, Heaviest daily snowfall 5.

Records on 27 April 1938 by type
Record type	Records
Highest daily maximum	162
Lowest daily maximum	14
Highest daily minimum	114
Lowest daily minimum	11
Heaviest daily rainfall	161
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 27 April 1938 by timescale: all-time 0, monthly 25, daily 442.

How Much Records Were Beaten By

371 broken records

Margins by which the 371 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

27 April 1938

Top 20 records on 27 April 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 April 1938	Gann Valley 4NW, US	daily rain	50.8 mm (2.0 in)	35.1 mm (1.4 in)	31 years	52 of 100 (Notable)
27 April 1938	Purdum, US	daily rain	59.4 mm (2.3 in)	36.5 mm (1.4 in)	32 years	47 of 100 (Notable)
27 April 1938	Brainerd, US	monthly rain	64.0 mm (2.5 in)	15.7 mm (0.6 in)	36 years	46 of 100 (Notable)
27 April 1938	Halsey 2 W, US	daily rain	55.1 mm (2.2 in)	32.2 mm (1.3 in)	32 years	44 of 100 (Notable)
27 April 1938	Savanne, CA	monthly rain	50.0 mm (2.0 in)	14.4 mm (0.6 in)	14 years	42 of 100 (Notable)
27 April 1938	Alva 1W, US	monthly rain	78.0 mm (3.1 in)	14.2 mm (0.6 in)	44 years	38 of 100 (Notable)
27 April 1938	Forestburg 4 NNE, US	daily rain	52.1 mm (2.1 in)	25.9 mm (1.0 in)	24 years	38 of 100 (Notable)
27 April 1938	Redfield, US	daily rain	39.6 mm (1.6 in)	27.9 mm (1.1 in)	20 years	38 of 100 (Notable)
27 April 1938	Vaikom, IN	daily rain	74.7 mm (2.9 in)	48.0 mm (1.9 in)	12 years	36 of 100 (Notable)
27 April 1938	Raton, US	daily rain	35.6 mm (1.4 in)	19.9 mm (0.8 in)	37 years	36 of 100 (Notable)
27 April 1938	Madrid, US	daily rain	63.8 mm (2.5 in)	27.0 mm (1.1 in)	32 years	35 of 100 (Notable)
27 April 1938	Weissenburg, DE	monthly rain	41.6 mm (1.6 in)	1.5 mm (0.06 in)	50 years	34 of 100 (Routine)
27 April 1938	Sherthala, IN	monthly rain	114.3 mm (4.5 in)	20.3 mm (0.8 in)	33 years	34 of 100 (Routine)
27 April 1938	Anthony, US	daily rain	55.9 mm (2.2 in)	33.0 mm (1.3 in)	15 years	34 of 100 (Routine)
27 April 1938	Norwich, US	daily rain	56.4 mm (2.2 in)	34.6 mm (1.4 in)	15 years	33 of 100 (Routine)
27 April 1938	De Smet, US	daily rain	36.8 mm (1.4 in)	24.4 mm (1.0 in)	20 years	33 of 100 (Routine)
27 April 1938	Simcoe, CA	daily high max	28.9 C (84.0 F)	3.9 C (7.0 F)	65 years	32 of 100 (Routine)
27 April 1938	Geryville (El-Bayadh), DZ	daily low max	9.0 C (48.2 F)	6.0 C (10.8 F)	47 years	31 of 100 (Routine)
27 April 1938	Leroy 5 WSW, US	daily rain	43.2 mm (1.7 in)	19.3 mm (0.8 in)	32 years	31 of 100 (Routine)
27 April 1938	Port Dover, CA	monthly high max	27.8 C (82.0 F)	1.7 C (3.1 F)	42 years	30 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

1795 to 1938

Records set or tied on this calendar date in each year from 1795 to 1938. 1938 had 467 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 1938-04-27: 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	350
20 to 40	19
40 to 60	1
60 to 80	0
80 to 100	0
100 to 120	0
120 to 140	1