Weather Records on 12 August 1938

237 weather records were set or tied worldwide on 12 August 1938. Highest significance: Kanpur, IN.

Key Facts for 12 August 1938

On 12 August 1938, 237 weather records were set or tied at long-record stations worldwide.
112 were record highs and 36 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 7 monthly and 230 daily.
Kanpur set a daily record precipitation of 205.7 mm (8.1 in) on 12 August 1938.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 449 records.

Record Map

237 stations

237 station records on 12 August 1938 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 August 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kanpur	India	Record daily precipitation	205.7 mm (8.1 in)	53 of 100 (Notable)
Kanpur	India	Record daily precipitation	208.0 mm (8.2 in)	53 of 100 (Notable)
Unnao	India	Record daily precipitation	165.1 mm (6.5 in)	52 of 100 (Notable)
Weilerswist-Lommersum	Germany	Record daily precipitation	36.7 mm (1.4 in)	49 of 100 (Notable)
Kannauj	India	Record daily precipitation	156.0 mm (6.1 in)	49 of 100 (Notable)
Serampore	India	Record daily precipitation	109.2 mm (4.3 in)	48 of 100 (Notable)
Farrukhabad	India	Record daily precipitation	122.9 mm (4.8 in)	42 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record daily precipitation	28.0 mm (1.1 in)	40 of 100 (Notable)
Indus	India	Record daily precipitation	119.9 mm (4.7 in)	38 of 100 (Notable)
Heerde	Netherlands	Record daily precipitation	41.0 mm (1.6 in)	38 of 100 (Notable)
Safipur	India	Record daily precipitation	132.1 mm (5.2 in)	37 of 100 (Notable)
Leipzig-Holzhausen	Germany	Record daily precipitation	36.0 mm (1.4 in)	28 of 100 (Routine)
Mainpuri	India	Record daily precipitation	89.4 mm (3.5 in)	28 of 100 (Routine)
Cheesman	United States	Record low minimum temperature	3.3 C (37.9 F)	28 of 100 (Routine)
Hoshiarpur	India	Record daily precipitation	122.4 mm (4.8 in)	27 of 100 (Routine)
Kaiserslautern	Germany	Record daily precipitation	43.4 mm (1.7 in)	25 of 100 (Routine)
Ranka	India	Record daily precipitation	64.8 mm (2.6 in)	25 of 100 (Routine)
Kalna	India	Record daily precipitation	74.4 mm (2.9 in)	24 of 100 (Routine)
Pikeville	United States	Record daily precipitation	48.5 mm (1.9 in)	24 of 100 (Routine)
Prince Albert	Canada	Record high maximum temperature	32.2 C (90.0 F)	23 of 100 (Routine)
Doberlug-Kirchhain	Germany	Record daily precipitation	27.4 mm (1.1 in)	23 of 100 (Routine)
Mainpuri	India	Record daily precipitation	87.4 mm (3.4 in)	23 of 100 (Routine)
Fatehgarh	India	Record daily precipitation	112.3 mm (4.4 in)	22 of 100 (Routine)
Hardoi	India	Record daily precipitation	82.6 mm (3.3 in)	21 of 100 (Routine)
Sandheads	India	Record daily precipitation	169.2 mm (6.7 in)	21 of 100 (Routine)
Schriever	United States	Record low minimum temperature	18.9 C (66.0 F)	21 of 100 (Routine)
Yonna	United States	Record low maximum temperature	15.6 C (60.1 F)	21 of 100 (Routine)
Niulii 179	United States	Record high minimum temperature	23.3 C (73.9 F)	21 of 100 (Routine)
Sheffield	United Kingdom	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Trier-Zewen	Germany	Record daily precipitation	24.2 mm (1.0 in)	20 of 100 (Routine)
Fort Simpson	Canada	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Frankfurt/Main (Feldbergstr.)	Germany	Record daily precipitation	23.2 mm (0.9 in)	20 of 100 (Routine)
Yarrabah Comm Council	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Cle Elum	United States	Record daily precipitation	2.5 mm (0.10 in)	20 of 100 (Routine)
Gongolgon Post Office	Australia	Record daily precipitation	0.8 mm (0.03 in)	20 of 100 (Routine)
Lungleh	India	Record daily precipitation	109.2 mm (4.3 in)	20 of 100 (Routine)
Chhibramau	India	Record daily precipitation	56.6 mm (2.2 in)	20 of 100 (Routine)
Jeoli Jansath	India	Record daily precipitation	132.8 mm (5.2 in)	20 of 100 (Routine)
Rockport 1 ESE	United States	Record low minimum temperature	9.4 C (48.9 F)	20 of 100 (Routine)
Biskra	Algeria	Record high minimum temperature	32.0 C (89.6 F)	19 of 100 (Routine)
Tewantin Post Office	Australia	Record low maximum temperature	16.4 C (61.5 F)	19 of 100 (Routine)
Agassiz Cda	Canada	Record low minimum temperature	5.0 C (41.0 F)	19 of 100 (Routine)
Bilgram	India	Record daily precipitation	161.5 mm (6.4 in)	19 of 100 (Routine)
Little Mtn	United States	Record high minimum temperature	23.9 C (75.0 F)	19 of 100 (Routine)
Williamson	United States	Record daily precipitation	53.1 mm (2.1 in)	19 of 100 (Routine)
Orlando Executive AP	United States	Record low minimum temperature	20.6 C (69.1 F)	19 of 100 (Routine)
Raglan	Australia	Record daily precipitation	9.7 mm (0.38 in)	18 of 100 (Routine)
Jalalabad	India	Record daily precipitation	154.7 mm (6.1 in)	18 of 100 (Routine)
Purwa	India	Record daily precipitation	49.5 mm (1.9 in)	18 of 100 (Routine)
Astana	Kazakhstan	Record low minimum temperature	3.2 C (37.8 F)	18 of 100 (Routine)
Vinita 2 N	United States	Record daily precipitation	30.5 mm (1.2 in)	18 of 100 (Routine)
Tebessa	Algeria	Record high minimum temperature	25.0 C (77.0 F)	17 of 100 (Routine)
Montcornet	France	Record daily precipitation	14.2 mm (0.6 in)	17 of 100 (Routine)
Jamui	India	Record daily precipitation	33.3 mm (1.3 in)	17 of 100 (Routine)
Durbanville (Pol)	South Africa	Record daily precipitation	14.0 mm (0.6 in)	17 of 100 (Routine)
Ekalaka	United States	Record high maximum temperature	38.3 C (100.9 F)	17 of 100 (Routine)
Ekalaka	United States	Record high minimum temperature	21.7 C (71.1 F)	17 of 100 (Routine)
Hay Springs	United States	Record high maximum temperature	38.3 C (100.9 F)	17 of 100 (Routine)
Bhagaon Bhogaon	India	Record daily precipitation	43.4 mm (1.7 in)	16 of 100 (Routine)
Patti	India	Record daily precipitation	49.0 mm (1.9 in)	16 of 100 (Routine)

Counts by Type and Timescale

237 records

Records set or tied on 12 August 1938 by type: Highest daily maximum 66, Lowest daily maximum 15, Highest daily minimum 46, Lowest daily minimum 21, Heaviest daily rainfall 89.

Records on 12 August 1938 by type
Record type	Records
Highest daily maximum	66
Lowest daily maximum	15
Highest daily minimum	46
Lowest daily minimum	21
Heaviest daily rainfall	89
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 August 1938 by timescale: all-time 0, monthly 7, daily 230.

How Much Records Were Beaten By

166 broken records

Margins by which the 166 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 121.9. Ties are not counted.

Top 20 by Significance

12 August 1938

Top 20 records on 12 August 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 August 1938	Kanpur, IN	daily rain	205.7 mm (8.1 in)	109.7 mm (4.3 in)	33 years	53 of 100 (Notable)
12 August 1938	Kanpur, IN	daily rain	208.0 mm (8.2 in)	110.2 mm (4.3 in)	33 years	53 of 100 (Notable)
12 August 1938	Unnao, IN	daily rain	165.1 mm (6.5 in)	121.9 mm (4.8 in)	32 years	52 of 100 (Notable)
12 August 1938	Weilerswist-Lommersum, DE	daily rain	36.7 mm (1.4 in)	28.4 mm (1.1 in)	23 years	49 of 100 (Notable)
12 August 1938	Kannauj, IN	daily rain	156.0 mm (6.1 in)	112.8 mm (4.4 in)	20 years	49 of 100 (Notable)
12 August 1938	Serampore, IN	daily rain	109.2 mm (4.3 in)	57.4 mm (2.3 in)	36 years	48 of 100 (Notable)
12 August 1938	Farrukhabad, IN	daily rain	122.9 mm (4.8 in)	73.4 mm (2.9 in)	25 years	42 of 100 (Notable)
12 August 1938	Praha-Klementinum, CZ	daily rain	28.0 mm (1.1 in)	7.2 mm (0.28 in)	64 years	40 of 100 (Notable)
12 August 1938	Indus, IN	daily rain	119.9 mm (4.7 in)	54.4 mm (2.1 in)	24 years	38 of 100 (Notable)
12 August 1938	Heerde, NL	daily rain	41.0 mm (1.6 in)	21.5 mm (0.8 in)	4 years	38 of 100 (Notable)
12 August 1938	Safipur, IN	daily rain	132.1 mm (5.2 in)	67.6 mm (2.7 in)	21 years	37 of 100 (Notable)
12 August 1938	Leipzig-Holzhausen, DE	daily rain	36.0 mm (1.4 in)	11.5 mm (0.5 in)	16 years	28 of 100 (Routine)
12 August 1938	Mainpuri, IN	daily rain	89.4 mm (3.5 in)	39.9 mm (1.6 in)	19 years	28 of 100 (Routine)
12 August 1938	Cheesman, US	daily low min	3.3 C (37.9 F)	3.9 C (7.0 F)	32 years	28 of 100 (Routine)
12 August 1938	Hoshiarpur, IN	daily rain	122.4 mm (4.8 in)	57.6 mm (2.3 in)	12 years	27 of 100 (Routine)
12 August 1938	Kaiserslautern, DE	monthly rain	43.4 mm (1.7 in)	5.2 mm (0.20 in)	15 years	25 of 100 (Routine)
12 August 1938	Ranka, IN	daily rain	64.8 mm (2.6 in)	33.6 mm (1.3 in)	33 years	25 of 100 (Routine)
12 August 1938	Kalna, IN	daily rain	74.4 mm (2.9 in)	35.8 mm (1.4 in)	0 years	24 of 100 (Routine)
12 August 1938	Pikeville, US	daily rain	48.5 mm (1.9 in)	12.9 mm (0.5 in)	36 years	24 of 100 (Routine)
12 August 1938	Prince Albert, CA	daily high max	32.2 C (90.0 F)	2.2 C (4.0 F)	44 years	23 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 1938

Records set or tied on this calendar date in each year from 1793 to 1938. 1938 had 237 records.

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

Records on 08-12 in each year
Year	Records
1793	1
1796	1
1811	2
1814	1
1815	1
1825	1
1843	1
1851	1
1854	1
1855	2
1856	1
1861	1
1864	3
1865	1
1867	1
1868	1
1871	2
1872	1
1873	1
1874	2
1875	3
1876	2
1879	1
1881	2
1883	1
1884	1
1885	1
1887	2
1888	2
1889	4
1890	4
1891	4
1892	2
1893	1
1894	1
1895	6
1896	2
1897	4
1898	1
1899	10
1900	1
1901	5
1902	9
1903	14
1904	13
1905	16
1906	8
1907	8
1908	31
1909	42
1910	16
1911	33
1912	40
1913	39
1914	26
1915	46
1916	31
1917	134
1918	37
1919	42
1920	26
1921	174
1922	71
1923	89
1924	267
1925	150
1926	154
1927	145
1928	173
1929	276
1930	501
1931	708
1932	418
1933	271
1934	471
1935	408
1936	591
1937	356
1938	237
1939	282
1940	545
1941	481
1942	257
1943	523
1944	595
1945	295
1946	655
1947	729
1948	384
1949	469
1950	442
1951	357
1952	533
1953	227
1954	969
1955	590
1956	265
1957	384
1958	406
1959	388
1960	707
1961	381
1962	466
1963	559
1964	1,346
1965	977
1966	777
1967	1,135
1968	444
1969	629
1970	422
1971	486
1972	473
1973	442
1974	560
1975	593
1976	495
1977	747
1978	571
1979	1,192
1980	692
1981	665
1982	789
1983	923
1984	665
1985	935
1986	615
1987	935
1988	1,518
1989	827
1990	727
1991	726
1992	1,134
1993	936
1994	861
1995	1,654
1996	1,336
1997	1,363
1998	1,215
1999	1,325
2000	741
2001	855
2002	1,345
2003	1,752
2004	1,872
2005	1,085
2006	874
2007	1,209
2008	970
2009	814
2010	1,907
2011	903
2012	910
2013	427
2014	787
2015	757
2016	1,290
2017	533
2018	571
2019	695
2020	730
2021	980
2022	616
2023	779
2024	659
2025	639
2026	849

Download the Data

Data for records on 1938-08-12: 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	146
20 to 40	10
40 to 60	4
60 to 80	2
80 to 100	0
100 to 120	3
120 to 140	1