Weather Records on 4 October 1938

440 weather records were set or tied worldwide on 4 October 1938. Highest significance: Rauland, NO.

Key Facts for 4 October 1938

On 4 October 1938, 440 weather records were set or tied at long-record stations worldwide.
279 were record highs and 80 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 90 monthly and 350 daily.
Rauland set a daily record precipitation of 41.3 mm (1.6 in) on 4 October 1938.
Across 160 earlier years (1795 to 2026) the same calendar date averaged 465 records.

Record Map

440 stations

440 station records on 4 October 1938 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 October 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rauland	Norway	Record daily precipitation	41.3 mm (1.6 in)	39 of 100 (Notable)
Ottapalam	India	Record daily precipitation	86.6 mm (3.4 in)	35 of 100 (Notable)
Varberg	Sweden	Record daily precipitation	28.6 mm (1.1 in)	30 of 100 (Routine)
Washington	United States	Record high maximum temperature	35.6 C (96.1 F)	29 of 100 (Routine)
Sigourney	United States	Record high maximum temperature	35.0 C (95.0 F)	28 of 100 (Routine)
Bethany	United States	Record high maximum temperature	35.6 C (96.1 F)	28 of 100 (Routine)
Shujalpur	India	Record daily precipitation	74.9 mm (2.9 in)	27 of 100 (Routine)
Andenes	Norway	Record high minimum temperature	11.5 C (52.7 F)	27 of 100 (Routine)
Iowa City	United States	Record high maximum temperature	33.9 C (93.0 F)	27 of 100 (Routine)
Keosauqua	United States	Record high maximum temperature	35.0 C (95.0 F)	27 of 100 (Routine)
Oskaloosa	United States	Record high maximum temperature	34.4 C (93.9 F)	27 of 100 (Routine)
Oksoey Fyr	Norway	Record daily precipitation	32.4 mm (1.3 in)	26 of 100 (Routine)
Pitea	Sweden	Record high minimum temperature	9.6 C (49.3 F)	26 of 100 (Routine)
Cedar Rapids #1	United States	Record high maximum temperature	32.8 C (91.0 F)	26 of 100 (Routine)
Grundy Ctr	United States	Record high maximum temperature	32.2 C (90.0 F)	26 of 100 (Routine)
Humboldt 3 W	United States	Record high maximum temperature	33.3 C (91.9 F)	26 of 100 (Routine)
Sac City	United States	Record high maximum temperature	33.3 C (91.9 F)	26 of 100 (Routine)
Syracuse	United States	Record high minimum temperature	21.7 C (71.1 F)	26 of 100 (Routine)
Cobar Post Office	Australia	Record high maximum temperature	35.6 C (96.1 F)	25 of 100 (Routine)
Mt Pleasant 1 SW	United States	Record high maximum temperature	33.3 C (91.9 F)	25 of 100 (Routine)
Blair	United States	Record high minimum temperature	21.1 C (70.0 F)	25 of 100 (Routine)
Baxter	United States	Record high maximum temperature	33.9 C (93.0 F)	24 of 100 (Routine)
Bathurst Gaol	Australia	Record high maximum temperature	27.3 C (81.1 F)	23 of 100 (Routine)
Mammoth Spring	United States	Record high maximum temperature	33.9 C (93.0 F)	23 of 100 (Routine)
Little Sioux	United States	Record high minimum temperature	20.0 C (68.0 F)	23 of 100 (Routine)
Storm Lake	United States	Record high maximum temperature	31.7 C (89.1 F)	23 of 100 (Routine)
Atkinson 3SW	United States	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Chariton 1 E	United States	Record high maximum temperature	33.3 C (91.9 F)	22 of 100 (Routine)
Delaware 3 WSW	United States	Record high maximum temperature	31.7 C (89.1 F)	22 of 100 (Routine)
Burlington	United States	Record high maximum temperature	35.0 C (95.0 F)	22 of 100 (Routine)
Leavenworth	United States	Record high maximum temperature	34.4 C (93.9 F)	22 of 100 (Routine)
Grant City	United States	Record high maximum temperature	35.0 C (95.0 F)	22 of 100 (Routine)
Mtn Grove 2 N	United States	Record high maximum temperature	33.9 C (93.0 F)	22 of 100 (Routine)
Hartington	United States	Record high minimum temperature	23.3 C (73.9 F)	22 of 100 (Routine)
Hedal I Valdres	Norway	Record daily precipitation	30.8 mm (1.2 in)	21 of 100 (Routine)
Toledo 3N	United States	Record high maximum temperature	34.4 C (93.9 F)	21 of 100 (Routine)
Southport 5 N	United States	Record low minimum temperature	7.8 C (46.0 F)	21 of 100 (Routine)
Springfield	United States	Record high maximum temperature	32.8 C (91.0 F)	21 of 100 (Routine)
Tarnaby	Sweden	Record daily precipitation	24.7 mm (1.0 in)	20 of 100 (Routine)
Junsele	Sweden	Record daily precipitation	18.9 mm (0.7 in)	20 of 100 (Routine)
Philippolis (Pol)	South Africa	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Chachora	India	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Novosibirsk	Russia	Record daily precipitation	11.1 mm (0.4 in)	20 of 100 (Routine)
Malin Head	Ireland	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Halmstad	Sweden	Record daily precipitation	16.6 mm (0.7 in)	20 of 100 (Routine)
Babuskin	Russia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Jokkmokk	Sweden	Record daily precipitation	11.9 mm (0.5 in)	20 of 100 (Routine)
Svenska Hogarna	Sweden	Record daily precipitation	6.6 mm (0.26 in)	20 of 100 (Routine)
Kjahta	Russia	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Wasco	United States	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Krielsfontein	South Africa	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Riksgransen	Sweden	Record high minimum temperature	4.9 C (40.8 F)	20 of 100 (Routine)
New Hampton	United States	Record high maximum temperature	31.1 C (88.0 F)	20 of 100 (Routine)
Vaikom	India	Record daily precipitation	63.5 mm (2.5 in)	19 of 100 (Routine)
Maristova	Norway	Record daily precipitation	31.4 mm (1.2 in)	19 of 100 (Routine)
Tylden "Tulden"	South Africa	Record daily precipitation	6.6 mm (0.26 in)	19 of 100 (Routine)
Glenwood Spgs #2	United States	Record high minimum temperature	6.7 C (44.1 F)	19 of 100 (Routine)
Columbus Junction	United States	Record high maximum temperature	32.8 C (91.0 F)	19 of 100 (Routine)
Creston 2 SW	United States	Record high maximum temperature	32.8 C (91.0 F)	19 of 100 (Routine)
Ottumwa 1 WSW	United States	Record high maximum temperature	35.6 C (96.1 F)	19 of 100 (Routine)

Counts by Type and Timescale

440 records

Records set or tied on 4 October 1938 by type: Highest daily maximum 205, Lowest daily maximum 13, Highest daily minimum 74, Lowest daily minimum 67, Heaviest daily rainfall 81.

Records on 4 October 1938 by type
Record type	Records
Highest daily maximum	205
Lowest daily maximum	13
Highest daily minimum	74
Lowest daily minimum	67
Heaviest daily rainfall	81
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 October 1938 by timescale: all-time 0, monthly 90, daily 350.

How Much Records Were Beaten By

338 broken records

Margins by which the 338 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 49.8. Ties are not counted.

Top 20 by Significance

4 October 1938

Top 20 records on 4 October 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 October 1938	Rauland, NO	daily rain	41.3 mm (1.6 in)	22.3 mm (0.9 in)	4 years	39 of 100 (Notable)
4 October 1938	Ottapalam, IN	daily rain	86.6 mm (3.4 in)	49.8 mm (2.0 in)	19 years	35 of 100 (Notable)
4 October 1938	Varberg, SE	daily rain	28.6 mm (1.1 in)	5.2 mm (0.20 in)	47 years	30 of 100 (Routine)
4 October 1938	Washington, US	monthly high max	35.6 C (96.1 F)	2.3 C (4.1 F)	41 years	29 of 100 (Routine)
4 October 1938	Sigourney, US	monthly high max	35.0 C (95.0 F)	1.7 C (3.1 F)	41 years	28 of 100 (Routine)
4 October 1938	Bethany, US	monthly high max	35.6 C (96.1 F)	2.3 C (4.1 F)	38 years	28 of 100 (Routine)
4 October 1938	Shujalpur, IN	monthly rain	74.9 mm (2.9 in)	11.4 mm (0.4 in)	21 years	27 of 100 (Routine)
4 October 1938	Andenes, NO	monthly high min	11.5 C (52.7 F)	0.1 C (0.2 F)	36 years	27 of 100 (Routine)
4 October 1938	Iowa City, US	monthly high max	33.9 C (93.0 F)	1.1 C (2.0 F)	41 years	27 of 100 (Routine)
4 October 1938	Keosauqua, US	monthly high max	35.0 C (95.0 F)	1.7 C (3.1 F)	38 years	27 of 100 (Routine)
4 October 1938	Oskaloosa, US	monthly high max	34.4 C (93.9 F)	1.1 C (2.0 F)	41 years	27 of 100 (Routine)
4 October 1938	Oksoey Fyr, NO	daily rain	32.4 mm (1.3 in)	7.2 mm (0.28 in)	45 years	26 of 100 (Routine)
4 October 1938	Pitea, SE	monthly high min	9.6 C (49.3 F)	0.1 C (0.2 F)	36 years	26 of 100 (Routine)
4 October 1938	Cedar Rapids #1, US	monthly high max	32.8 C (91.0 F)	0.6 C (1.1 F)	41 years	26 of 100 (Routine)
4 October 1938	Grundy Ctr, US	monthly high max	32.2 C (90.0 F)	0.5 C (0.9 F)	40 years	26 of 100 (Routine)
4 October 1938	Humboldt 3 W, US	monthly high max	33.3 C (91.9 F)	0.5 C (0.9 F)	40 years	26 of 100 (Routine)
4 October 1938	Sac City, US	monthly high max	33.3 C (91.9 F)	0.5 C (0.9 F)	41 years	26 of 100 (Routine)
4 October 1938	Syracuse, US	monthly high min	21.7 C (71.1 F)	1.1 C (2.0 F)	37 years	26 of 100 (Routine)
4 October 1938	Cobar Post Office, AU	daily high max	35.6 C (96.1 F)	3.4 C (6.1 F)	49 years	25 of 100 (Routine)
4 October 1938	Mt Pleasant 1 SW, US	monthly high max	33.3 C (91.9 F)	0.5 C (0.9 F)	38 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

1795 to 1938

Records set or tied on this calendar date in each year from 1795 to 1938. 1938 had 440 records.

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

Records on 10-04 in each year
Year	Records
1795	1
1802	1
1841	2
1843	1
1844	2
1847	2
1853	1
1859	1
1864	8
1865	2
1867	1
1868	1
1873	1
1875	1
1876	1
1878	1
1880	1
1881	3
1882	1
1883	3
1884	4
1885	2
1886	3
1888	5
1889	2
1890	1
1891	3
1892	2
1893	2
1894	3
1895	3
1896	3
1898	4
1899	1
1900	3
1901	9
1902	5
1903	8
1904	5
1905	11
1906	29
1907	10
1908	18
1909	13
1910	21
1911	23
1912	101
1913	12
1914	18
1915	13
1916	137
1917	157
1918	127
1919	30
1920	31
1921	46
1922	44
1923	21
1924	63
1925	130
1926	255
1927	172
1928	131
1929	339
1930	244
1931	361
1932	413
1933	299
1934	121
1935	833
1936	161
1937	483
1938	440
1939	345
1940	220
1941	850
1942	198
1943	426
1944	328
1945	543
1946	314
1947	592
1948	449
1949	491
1950	565
1951	617
1952	717
1953	358
1954	999
1955	630
1956	467
1957	533
1958	704
1959	812
1960	246
1961	758
1962	313
1963	528
1964	389
1965	760
1966	464
1967	440
1968	587
1969	628
1970	539
1971	361
1972	712
1973	604
1974	1,846
1975	681
1976	869
1977	517
1978	488
1979	733
1980	975
1981	994
1982	415
1983	762
1984	864
1985	863
1986	1,265
1987	1,502
1988	713
1989	742
1990	845
1991	813
1992	866
1993	956
1994	1,341
1995	1,192
1996	1,012
1997	928
1998	1,487
1999	1,596
2000	917
2001	547
2002	1,465
2003	610
2004	562
2005	1,973
2006	987
2007	997
2008	935
2009	1,431
2010	1,230
2011	919
2012	864
2013	1,130
2014	611
2015	741
2016	680
2017	780
2018	979
2019	1,131
2020	897
2021	644
2022	561
2023	936
2024	1,197
2025	979
2026	942

Download the Data

Data for records on 1938-10-04: 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 10	320
10 to 20	10
20 to 30	7
30 to 40	0
40 to 50	1