Weather Records on 22 September 1939

266 weather records were set or tied worldwide on 22 September 1939. Highest significance: Tallinn, EE.

Key Facts for 22 September 1939

On 22 September 1939, 266 weather records were set or tied at long-record stations worldwide.
209 were record highs and 15 were record lows, counting maximum and minimum temperature.
By timescale, 10 were all-time records, 8 monthly and 248 daily.
Tallinn set a daily record precipitation of 25.6 mm (1.0 in) on 22 September 1939.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 429 records.

Record Map

266 stations

266 station records on 22 September 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 22 September 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tallinn	Estonia	Record daily precipitation	25.6 mm (1.0 in)	37 of 100 (Notable)
Indapur	India	Record daily precipitation	77.5 mm (3.1 in)	37 of 100 (Notable)
San Jose	United States	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Cloverdale	United States	Record high minimum temperature	22.2 C (72.0 F)	36 of 100 (Notable)
Suri	India	Record daily precipitation	97.5 mm (3.8 in)	33 of 100 (Routine)
Folsom	United States	Record high minimum temperature	23.3 C (73.9 F)	33 of 100 (Routine)
Hollister 1 SW	United States	Record high minimum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Spreckels Hwy Brg	United States	Record high minimum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
New Westminster	Canada	Record high maximum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Livermore	United States	Record high minimum temperature	20.0 C (68.0 F)	29 of 100 (Routine)
Santa Maria	United States	Record high maximum temperature	41.1 C (106.0 F)	29 of 100 (Routine)
Sierra Madre Henszey	United States	Record high minimum temperature	26.7 C (80.1 F)	28 of 100 (Routine)
Sierra Madre Henszey	United States	Record daily precipitation	29.5 mm (1.2 in)	28 of 100 (Routine)
Pachet(Kharai)	India	Record daily precipitation	90.7 mm (3.6 in)	27 of 100 (Routine)
Sandheads	India	Record daily precipitation	49.8 mm (2.0 in)	27 of 100 (Routine)
Santa Barbara	United States	Record high maximum temperature	39.4 C (102.9 F)	27 of 100 (Routine)
Ashland	United States	Record high minimum temperature	16.7 C (62.1 F)	27 of 100 (Routine)
Kalyanganj	India	Record daily precipitation	78.7 mm (3.1 in)	26 of 100 (Routine)
Denair 3 NNE	United States	Record high minimum temperature	19.4 C (66.9 F)	26 of 100 (Routine)
Napa State Hospital	United States	Record high minimum temperature	20.6 C (69.1 F)	26 of 100 (Routine)
Pasadena	United States	Record high minimum temperature	21.7 C (71.1 F)	26 of 100 (Routine)
Sagar Island	India	Record daily precipitation	161.8 mm (6.4 in)	25 of 100 (Routine)
Oroville 1 N	United States	Record high minimum temperature	21.7 C (71.1 F)	25 of 100 (Routine)
Represa	United States	Record high maximum temperature	37.2 C (99.0 F)	25 of 100 (Routine)
Healdsburg	United States	Record high minimum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Santa Cruz	United States	Record high maximum temperature	40.0 C (104.0 F)	24 of 100 (Routine)
Escondido	United States	Record high maximum temperature	39.4 C (102.9 F)	23 of 100 (Routine)
Saint Helena	United States	Record high maximum temperature	42.2 C (108.0 F)	23 of 100 (Routine)
San Jose	United States	Record high maximum temperature	38.3 C (100.9 F)	22 of 100 (Routine)
Angiola	United States	Record high minimum temperature	18.3 C (64.9 F)	21 of 100 (Routine)
Berkeley	United States	Record high maximum temperature	35.0 C (95.0 F)	21 of 100 (Routine)
Cloverdale	United States	Record high maximum temperature	42.2 C (108.0 F)	21 of 100 (Routine)
Electra P H	United States	Record high minimum temperature	21.1 C (70.0 F)	21 of 100 (Routine)
Hollister 1 SW	United States	Record high maximum temperature	41.1 C (106.0 F)	21 of 100 (Routine)
Lemon Cove	United States	Record high minimum temperature	22.8 C (73.0 F)	21 of 100 (Routine)
Visalia	United States	Record high minimum temperature	21.7 C (71.1 F)	21 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record high minimum temperature	12.8 C (55.0 F)	21 of 100 (Routine)
Elko Rgnl AP	United States	Record high minimum temperature	11.7 C (53.1 F)	21 of 100 (Routine)
Pakri	Estonia	Record daily precipitation	19.0 mm (0.7 in)	20 of 100 (Routine)
Austin #2	United States	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Katherine Council	Australia	Record daily precipitation	0.5 mm (0.02 in)	20 of 100 (Routine)
Marysville	United States	Record high minimum temperature	21.7 C (71.1 F)	20 of 100 (Routine)
Santa Barbara	United States	Record high minimum temperature	20.6 C (69.1 F)	20 of 100 (Routine)
Santa Rosa	United States	Record high maximum temperature	40.6 C (105.1 F)	20 of 100 (Routine)
Yreka	United States	Record high minimum temperature	12.2 C (54.0 F)	20 of 100 (Routine)
Claremont Pomona Clg	United States	Record high minimum temperature	20.0 C (68.0 F)	19 of 100 (Routine)
Los Gatos	United States	Record high maximum temperature	38.3 C (100.9 F)	19 of 100 (Routine)
Napa State Hospital	United States	Record high maximum temperature	40.6 C (105.1 F)	19 of 100 (Routine)
Santa Clara UNIV	United States	Record high maximum temperature	38.9 C (102.0 F)	19 of 100 (Routine)
Santa Rosa	United States	Record high minimum temperature	16.7 C (62.1 F)	19 of 100 (Routine)
Hypoluxo	United States	Record high maximum temperature	34.4 C (93.9 F)	19 of 100 (Routine)
Plymouth	United States	Record low minimum temperature	-3.9 C (25.0 F)	19 of 100 (Routine)
Cortland	United States	Record low minimum temperature	-0.6 C (30.9 F)	19 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low minimum temperature	-0.4 C (31.3 F)	18 of 100 (Routine)
Kamloops	Canada	Record high maximum temperature	26.7 C (80.1 F)	18 of 100 (Routine)
Kaikalur	India	Record daily precipitation	44.5 mm (1.8 in)	18 of 100 (Routine)
Nagpur (Mayo Hospit	India	Record daily precipitation	34.5 mm (1.4 in)	18 of 100 (Routine)
Auburn	United States	Record high minimum temperature	22.2 C (72.0 F)	18 of 100 (Routine)
Pomona/Fairplex	United States	Record high maximum temperature	41.1 C (106.0 F)	18 of 100 (Routine)
Port Orford 2	United States	Record high minimum temperature	14.4 C (57.9 F)	18 of 100 (Routine)

Counts by Type and Timescale

266 records

Records set or tied on 22 September 1939 by type: Highest daily maximum 113, Highest daily minimum 96, Lowest daily minimum 15, Heaviest daily rainfall 42.

Records on 22 September 1939 by type
Record type	Records
Highest daily maximum	113
Lowest daily maximum	0
Highest daily minimum	96
Lowest daily minimum	15
Heaviest daily rainfall	42
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 22 September 1939 by timescale: all-time 10, monthly 8, daily 248.

How Much Records Were Beaten By

198 broken records

Margins by which the 198 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 56.4. Ties are not counted.

Top 20 by Significance

22 September 1939

Top 20 records on 22 September 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 September 1939	Tallinn, EE	daily rain	25.6 mm (1.0 in)	9.7 mm (0.38 in)	45 years	37 of 100 (Notable)
22 September 1939	Indapur, IN	daily rain	77.5 mm (3.1 in)	52.1 mm (2.1 in)	21 years	37 of 100 (Notable)
22 September 1939	San Jose, US	all-time high min	21.7 C (71.1 F)	0.6 C (1.1 F)	39 years	37 of 100 (Notable)
22 September 1939	Cloverdale, US	daily high min	22.2 C (72.0 F)	7.2 C (13.0 F)	33 years	36 of 100 (Notable)
22 September 1939	Suri, IN	daily rain	97.5 mm (3.8 in)	56.4 mm (2.2 in)	8 years	33 of 100 (Routine)
22 September 1939	Folsom, US	daily high min	23.3 C (73.9 F)	6.6 C (11.9 F)	25 years	33 of 100 (Routine)
22 September 1939	Hollister 1 SW, US	all-time high min	20.6 C (69.1 F)	0.6 C (1.1 F)	22 years	32 of 100 (Routine)
22 September 1939	Spreckels Hwy Brg, US	all-time high min	20.6 C (69.1 F)	0.6 C (1.1 F)	28 years	32 of 100 (Routine)
22 September 1939	New Westminster, CA	daily high max	25.0 C (77.0 F)	1.7 C (3.1 F)	64 years	29 of 100 (Routine)
22 September 1939	Livermore, US	daily high min	20.0 C (68.0 F)	5.0 C (9.0 F)	29 years	29 of 100 (Routine)
22 September 1939	Santa Maria, US	monthly high max	41.1 C (106.0 F)	3.3 C (5.9 F)	17 years	29 of 100 (Routine)
22 September 1939	Sierra Madre Henszey, US	daily high min	26.7 C (80.1 F)	3.9 C (7.0 F)	41 years	28 of 100 (Routine)
22 September 1939	Sierra Madre Henszey, US	daily rain	29.5 mm (1.2 in)	27.5 mm (1.1 in)	20 years	28 of 100 (Routine)
22 September 1939	Pachet(Kharai), IN	daily rain	90.7 mm (3.6 in)	49.8 mm (2.0 in)	8 years	27 of 100 (Routine)
22 September 1939	Sandheads, IN	daily rain	49.8 mm (2.0 in)	32.0 mm (1.3 in)	10 years	27 of 100 (Routine)
22 September 1939	Santa Barbara, US	daily high max	39.4 C (102.9 F)	7.2 C (13.0 F)	13 years	27 of 100 (Routine)
22 September 1939	Ashland, US	daily high min	16.7 C (62.1 F)	4.5 C (8.1 F)	33 years	27 of 100 (Routine)
22 September 1939	Kalyanganj, IN	daily rain	78.7 mm (3.1 in)	34.8 mm (1.4 in)	24 years	26 of 100 (Routine)
22 September 1939	Denair 3 NNE, US	daily high min	19.4 C (66.9 F)	4.4 C (7.9 F)	25 years	26 of 100 (Routine)
22 September 1939	Napa State Hospital, US	daily high min	20.6 C (69.1 F)	2.8 C (5.0 F)	44 years	26 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 1939

Records set or tied on this calendar date in each year from 1793 to 1939. 1939 had 266 records.

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

Records on 09-22 in each year
Year	Records
1793	1
1796	1
1824	1
1825	1
1827	1
1830	1
1835	1
1838	1
1840	1
1842	2
1845	1
1846	1
1848	1
1851	3
1855	1
1856	1
1858	1
1863	1
1865	1
1868	1
1872	1
1874	1
1875	1
1877	4
1878	1
1881	2
1882	3
1885	1
1886	1
1888	1
1889	2
1890	2
1892	3
1893	1
1894	1
1895	7
1896	2
1897	3
1898	8
1899	12
1900	3
1901	3
1902	7
1903	4
1904	34
1905	5
1906	16
1907	12
1908	10
1909	6
1910	18
1911	17
1912	17
1913	43
1914	48
1915	23
1916	236
1917	128
1918	25
1919	64
1920	35
1921	44
1922	27
1923	118
1924	132
1925	265
1926	214
1927	160
1928	119
1929	166
1930	231
1931	732
1932	189
1933	230
1934	348
1935	231
1936	448
1937	507
1938	394
1939	266
1940	621
1941	424
1942	323
1943	266
1944	299
1945	739
1946	288
1947	583
1948	345
1949	385
1950	394
1951	419
1952	383
1953	253
1954	359
1955	584
1956	490
1957	580
1958	633
1959	416
1960	360
1961	555
1962	732
1963	351
1964	249
1965	841
1966	595
1967	507
1968	526
1969	488
1970	1,197
1971	500
1972	448
1973	509
1974	1,075
1975	591
1976	538
1977	632
1978	620
1979	991
1980	1,199
1981	754
1982	1,122
1983	2,060
1984	614
1985	820
1986	729
1987	1,300
1988	665
1989	1,155
1990	795
1991	758
1992	1,011
1993	1,448
1994	941
1995	2,498
1996	916
1997	851
1998	1,251
1999	1,172
2000	1,508
2001	604
2002	718
2003	1,472
2004	948
2005	1,155
2006	1,260
2007	896
2008	830
2009	985
2010	1,217
2011	611
2012	568
2013	673
2014	812
2015	666
2016	1,096
2017	1,272
2018	574
2019	651
2020	687
2021	432
2022	985
2023	905
2024	502
2025	387
2026	309

Download the Data

Data for records on 1939-09-22: 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	180
10 to 20	11
20 to 30	2
30 to 40	2
40 to 50	1
50 to 60	2