Weather Records on 18 September 1938

373 weather records were set or tied worldwide on 18 September 1938. Highest significance: Brooksville Chin Hill, US.

Key Facts for 18 September 1938

On 18 September 1938, 373 weather records were set or tied at long-record stations worldwide.
104 were record highs and 169 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 363 daily.
Brooksville Chin Hill set a daily record precipitation of 106.4 mm (4.2 in) on 18 September 1938.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 422 records.

Record Map

373 stations

373 station records on 18 September 1938 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brooksville Chin Hill	United States	Record daily precipitation	106.4 mm (4.2 in)	52 of 100 (Notable)
Harda	India	Record daily precipitation	134.4 mm (5.3 in)	51 of 100 (Notable)
Upper Shillong	India	Record daily precipitation	138.7 mm (5.5 in)	48 of 100 (Notable)
Palkot	India	Record daily precipitation	161.3 mm (6.4 in)	47 of 100 (Notable)
Shillong	India	Record daily precipitation	106.4 mm (4.2 in)	46 of 100 (Notable)
Sturgeon Bay Exp Farm	United States	Record daily precipitation	46.5 mm (1.8 in)	46 of 100 (Notable)
Shegaon	India	Record daily precipitation	97.5 mm (3.8 in)	42 of 100 (Notable)
Sarna	Sweden	Record daily precipitation	25.2 mm (1.0 in)	42 of 100 (Notable)
Oshkosh	United States	Record daily precipitation	51.8 mm (2.0 in)	40 of 100 (Notable)
Kalna	India	Record daily precipitation	72.4 mm (2.9 in)	38 of 100 (Notable)
Portage Wwtp	United States	Record daily precipitation	67.8 mm (2.7 in)	37 of 100 (Notable)
Nalbari	India	Record daily precipitation	87.6 mm (3.4 in)	35 of 100 (Notable)
Kamennaja-Step	Russia	Record daily precipitation	27.1 mm (1.1 in)	34 of 100 (Routine)
New London	United States	Record daily precipitation	52.6 mm (2.1 in)	32 of 100 (Routine)
Beatrice	Canada	Record daily precipitation	40.6 mm (1.6 in)	30 of 100 (Routine)
Nes Pa Hedmark	Norway	Record daily precipitation	25.2 mm (1.0 in)	30 of 100 (Routine)
Ft Pierce	United States	Record daily precipitation	72.9 mm (2.9 in)	30 of 100 (Routine)
Sheboygan	United States	Record daily precipitation	55.4 mm (2.2 in)	30 of 100 (Routine)
Grand River Lock	United States	Record daily precipitation	54.6 mm (2.1 in)	29 of 100 (Routine)
Rani(Ranigoda)	India	Record daily precipitation	47.0 mm (1.9 in)	28 of 100 (Routine)
Ft Pierce	United States	Record high maximum temperature	35.0 C (95.0 F)	27 of 100 (Routine)
Madison Wb City	United States	Record low maximum temperature	10.6 C (51.1 F)	27 of 100 (Routine)
Port Washington	United States	Record daily precipitation	46.2 mm (1.8 in)	27 of 100 (Routine)
Mahbubnagar	India	Record daily precipitation	64.8 mm (2.6 in)	25 of 100 (Routine)
Kurinjipadi	India	Record daily precipitation	47.5 mm (1.9 in)	24 of 100 (Routine)
Gleichen	Canada	Record high maximum temperature	32.2 C (90.0 F)	22 of 100 (Routine)
Nazira	India	Record daily precipitation	62.5 mm (2.5 in)	21 of 100 (Routine)
Buxar	India	Record daily precipitation	74.7 mm (2.9 in)	21 of 100 (Routine)
Kowardha	India	Record daily precipitation	62.2 mm (2.4 in)	21 of 100 (Routine)
Mawphlang Obsy	India	Record daily precipitation	208.3 mm (8.2 in)	21 of 100 (Routine)
Bend	United States	Record high minimum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
Falfurrias	United States	Record low maximum temperature	22.8 C (73.0 F)	21 of 100 (Routine)
Pullman Exp STN	United States	Record high minimum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Menasha	United States	Record daily precipitation	31.8 mm (1.3 in)	21 of 100 (Routine)
Waukesha Wwtp	United States	Record daily precipitation	45.7 mm (1.8 in)	21 of 100 (Routine)
Bjuraker	Sweden	Record daily precipitation	24.7 mm (1.0 in)	20 of 100 (Routine)
Orillia	Canada	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Elandsfontein	South Africa	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Calgary Int'l A	Canada	Record high maximum temperature	31.1 C (88.0 F)	20 of 100 (Routine)
Ballia	India	Record daily precipitation	43.2 mm (1.7 in)	20 of 100 (Routine)
Calarasi	Romania	Record low minimum temperature	4.0 C (39.2 F)	20 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record low maximum temperature	5.0 C (41.0 F)	20 of 100 (Routine)
Kellogg	United States	Record high maximum temperature	37.8 C (100.0 F)	20 of 100 (Routine)
Moscow U of I	United States	Record high maximum temperature	34.4 C (93.9 F)	20 of 100 (Routine)
Haverhill	United States	Record low maximum temperature	14.4 C (57.9 F)	20 of 100 (Routine)
Murtajapur	India	Record daily precipitation	62.0 mm (2.4 in)	19 of 100 (Routine)
Jowai	India	Record daily precipitation	235.0 mm (9.3 in)	19 of 100 (Routine)
Cherrapunji/P.S.	India	Record daily precipitation	518.7 mm (20.4 in)	19 of 100 (Routine)
Orofino	United States	Record high maximum temperature	39.4 C (102.9 F)	19 of 100 (Routine)
Porthill	United States	Record high maximum temperature	30.6 C (87.1 F)	19 of 100 (Routine)
Priest Rvr Exp STN	United States	Record high maximum temperature	33.9 C (93.0 F)	19 of 100 (Routine)
Browning	United States	Record high maximum temperature	29.4 C (84.9 F)	19 of 100 (Routine)
Columbia Falls 5 SW	United States	Record high maximum temperature	33.3 C (91.9 F)	19 of 100 (Routine)
Charlotteburg Rsvr	United States	Record low maximum temperature	16.1 C (61.0 F)	19 of 100 (Routine)
Tishomingo Natl Wr	United States	Record low minimum temperature	5.0 C (41.0 F)	19 of 100 (Routine)
Joseph	United States	Record high minimum temperature	12.8 C (55.0 F)	19 of 100 (Routine)
Odessa	United States	Record high maximum temperature	36.7 C (98.1 F)	19 of 100 (Routine)
Burlington Muni AP	United States	Record low maximum temperature	12.8 C (55.0 F)	19 of 100 (Routine)
Cranbrook	Canada	Record high maximum temperature	31.7 C (89.1 F)	18 of 100 (Routine)
Bilasipara	India	Record daily precipitation	99.1 mm (3.9 in)	18 of 100 (Routine)

Counts by Type and Timescale

373 records

Records set or tied on 18 September 1938 by type: Highest daily maximum 63, Lowest daily maximum 155, Highest daily minimum 41, Lowest daily minimum 14, Heaviest daily rainfall 100.

Records on 18 September 1938 by type
Record type	Records
Highest daily maximum	63
Lowest daily maximum	155
Highest daily minimum	41
Lowest daily minimum	14
Heaviest daily rainfall	100
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 September 1938 by timescale: all-time 0, monthly 10, daily 363.

How Much Records Were Beaten By

289 broken records

Margins by which the 289 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 84.1. Ties are not counted.

Top 20 by Significance

18 September 1938

Top 20 records on 18 September 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 1938	Brooksville Chin Hill, US	daily rain	106.4 mm (4.2 in)	70.3 mm (2.8 in)	32 years	52 of 100 (Notable)
18 September 1938	Harda, IN	daily rain	134.4 mm (5.3 in)	84.1 mm (3.3 in)	36 years	51 of 100 (Notable)
18 September 1938	Upper Shillong, IN	daily rain	138.7 mm (5.5 in)	82.8 mm (3.3 in)	19 years	48 of 100 (Notable)
18 September 1938	Palkot, IN	daily rain	161.3 mm (6.4 in)	84.1 mm (3.3 in)	16 years	47 of 100 (Notable)
18 September 1938	Shillong, IN	daily rain	106.4 mm (4.2 in)	65.0 mm (2.6 in)	19 years	46 of 100 (Notable)
18 September 1938	Sturgeon Bay Exp Farm, US	daily rain	46.5 mm (1.8 in)	34.1 mm (1.3 in)	27 years	46 of 100 (Notable)
18 September 1938	Shegaon, IN	daily rain	97.5 mm (3.8 in)	71.1 mm (2.8 in)	16 years	42 of 100 (Notable)
18 September 1938	Sarna, SE	daily rain	25.2 mm (1.0 in)	13.2 mm (0.5 in)	41 years	42 of 100 (Notable)
18 September 1938	Oshkosh, US	daily rain	51.8 mm (2.0 in)	30.0 mm (1.2 in)	27 years	40 of 100 (Notable)
18 September 1938	Kalna, IN	daily rain	72.4 mm (2.9 in)	49.8 mm (2.0 in)	32 years	38 of 100 (Notable)
18 September 1938	Portage Wwtp, US	daily rain	67.8 mm (2.7 in)	29.7 mm (1.2 in)	31 years	37 of 100 (Notable)
18 September 1938	Nalbari, IN	daily rain	87.6 mm (3.4 in)	56.9 mm (2.2 in)	24 years	35 of 100 (Notable)
18 September 1938	Kamennaja-Step, RU	daily rain	27.1 mm (1.1 in)	18.4 mm (0.7 in)	4 years	34 of 100 (Routine)
18 September 1938	New London, US	daily rain	52.6 mm (2.1 in)	30.5 mm (1.2 in)	12 years	32 of 100 (Routine)
18 September 1938	Beatrice, CA	daily rain	40.6 mm (1.6 in)	6.3 mm (0.25 in)	57 years	30 of 100 (Routine)
18 September 1938	Nes Pa Hedmark, NO	daily rain	25.2 mm (1.0 in)	14.1 mm (0.6 in)	12 years	30 of 100 (Routine)
18 September 1938	Ft Pierce, US	daily rain	72.9 mm (2.9 in)	30.5 mm (1.2 in)	33 years	30 of 100 (Routine)
18 September 1938	Sheboygan, US	daily rain	55.4 mm (2.2 in)	20.9 mm (0.8 in)	27 years	30 of 100 (Routine)
18 September 1938	Grand River Lock, US	daily rain	54.6 mm (2.1 in)	20.3 mm (0.8 in)	27 years	29 of 100 (Routine)
18 September 1938	Rani(Ranigoda), IN	daily rain	47.0 mm (1.9 in)	33.8 mm (1.3 in)	19 years	28 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

1803 to 1938

Records set or tied on this calendar date in each year from 1803 to 1938. 1938 had 373 records.

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

Records on 09-18 in each year
Year	Records
1803	1
1811	1
1814	1
1819	1
1829	1
1832	1
1834	1
1835	1
1837	2
1847	2
1848	1
1849	1
1851	4
1859	1
1861	1
1865	1
1869	1
1871	1
1875	1
1876	2
1877	1
1879	1
1880	1
1881	1
1882	1
1885	1
1886	4
1889	6
1890	1
1891	1
1893	4
1894	2
1895	2
1896	4
1897	3
1898	5
1899	3
1900	2
1901	10
1902	8
1903	58
1904	6
1905	22
1906	16
1907	4
1908	11
1909	17
1910	5
1911	8
1912	43
1913	44
1914	56
1915	41
1916	58
1917	99
1918	57
1919	48
1920	56
1921	213
1922	45
1923	114
1924	62
1925	269
1926	205
1927	189
1928	114
1929	309
1930	124
1931	429
1932	226
1933	370
1934	188
1935	281
1936	155
1937	422
1938	373
1939	190
1940	402
1941	318
1942	1,001
1943	624
1944	503
1945	732
1946	576
1947	927
1948	427
1949	356
1950	370
1951	320
1952	340
1953	245
1954	446
1955	672
1956	587
1957	429
1958	491
1959	829
1960	351
1961	478
1962	360
1963	453
1964	282
1965	1,172
1966	498
1967	357
1968	763
1969	424
1970	377
1971	1,245
1972	691
1973	593
1974	559
1975	976
1976	615
1977	619
1978	1,162
1979	709
1980	652
1981	1,671
1982	603
1983	936
1984	951
1985	636
1986	730
1987	1,244
1988	997
1989	778
1990	904
1991	1,377
1992	821
1993	747
1994	852
1995	935
1996	1,237
1997	935
1998	1,038
1999	583
2000	1,146
2001	993
2002	828
2003	815
2004	1,027
2005	781
2006	1,309
2007	670
2008	697
2009	692
2010	1,040
2011	1,050
2012	922
2013	666
2014	682
2015	934
2016	893
2017	518
2018	1,200
2019	768
2020	682
2021	582
2022	613
2023	639
2024	687
2025	471
2026	864

Download the Data

Data for records on 1938-09-18: 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 20	260
20 to 40	20
40 to 60	3
60 to 80	3
80 to 100	3