Weather Records on 21 October 1937

132 weather records were set or tied worldwide on 21 October 1937. Highest significance: Princeton, US.

Key Facts for 21 October 1937

On 21 October 1937, 132 weather records were set or tied at long-record stations worldwide.
75 were record highs and 12 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 131 daily.
Princeton set a daily record precipitation of 66.8 mm (2.6 in) on 21 October 1937.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 422 records.

Record Map

132 stations

132 station records on 21 October 1937 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 October 1937: highest significance records shown on the map
Station	Country	Type	Value	Significance
Princeton	United States	Record daily precipitation	66.8 mm (2.6 in)	35 of 100 (Notable)
Bradshaw Homestead	Australia	Record daily precipitation	35.1 mm (1.4 in)	33 of 100 (Routine)
Farmington	United States	Record daily precipitation	43.7 mm (1.7 in)	31 of 100 (Routine)
Saint Johnsbury	United States	Record daily precipitation	36.1 mm (1.4 in)	31 of 100 (Routine)
Cairns Post Office	Australia	Record low minimum temperature	13.8 C (56.8 F)	30 of 100 (Routine)
Wilgerivier (Sar)	South Africa	Record daily precipitation	36.3 mm (1.4 in)	30 of 100 (Routine)
Waterville Wwtp	United States	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Haverhill	United States	Record daily precipitation	40.6 mm (1.6 in)	28 of 100 (Routine)
Georgetown Post Office	Australia	Record low minimum temperature	9.9 C (49.8 F)	27 of 100 (Routine)
Vernon	United States	Record daily precipitation	42.9 mm (1.7 in)	25 of 100 (Routine)
Gumri	Armenia	Record low minimum temperature	-6.8 C (19.8 F)	23 of 100 (Routine)
Provincetown 3 NW	United States	Record daily precipitation	33.8 mm (1.3 in)	22 of 100 (Routine)
Astoria	United States	Record high maximum temperature	23.9 C (75.0 F)	21 of 100 (Routine)
Barabinsk	Russia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Atlin	Canada	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Geryville (El-Bayadh)	Algeria	Record daily precipitation	19.0 mm (0.7 in)	20 of 100 (Routine)
Nalia	India	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
New Westminster	Canada	Record high maximum temperature	22.2 C (72.0 F)	20 of 100 (Routine)
Providence Bay	Canada	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)
Gardiner	United States	Record daily precipitation	36.1 mm (1.4 in)	20 of 100 (Routine)
Missoula 6 NW WFO	United States	Record high minimum temperature	9.4 C (48.9 F)	20 of 100 (Routine)
Enisejsk	Russia	Record high minimum temperature	1.6 C (34.9 F)	19 of 100 (Routine)
Naboomspruit (Pol)	South Africa	Record daily precipitation	11.4 mm (0.4 in)	19 of 100 (Routine)
Madison	United States	Record daily precipitation	34.8 mm (1.4 in)	19 of 100 (Routine)
Montello 2NE	United States	Record high minimum temperature	8.9 C (48.0 F)	19 of 100 (Routine)
Bloomfield	United States	Record daily precipitation	74.4 mm (2.9 in)	19 of 100 (Routine)
Portland Rfc City	United States	Record high maximum temperature	25.0 C (77.0 F)	19 of 100 (Routine)
Clayoquot	Canada	Record high maximum temperature	20.0 C (68.0 F)	18 of 100 (Routine)
Coloso	Puerto Rico [United States]	Record high minimum temperature	21.7 C (71.1 F)	18 of 100 (Routine)
Cloverdale	United States	Record high maximum temperature	33.9 C (93.0 F)	18 of 100 (Routine)
Fitchburg 4 SE	United States	Record daily precipitation	37.6 mm (1.5 in)	18 of 100 (Routine)
Niulii 179	United States	Record low minimum temperature	16.7 C (62.1 F)	18 of 100 (Routine)
North Bridgton	United States	Record daily precipitation	33.5 mm (1.3 in)	17 of 100 (Routine)
Brockton	United States	Record daily precipitation	17.3 mm (0.7 in)	17 of 100 (Routine)
St Georges	Canada	Record high maximum temperature	20.6 C (69.1 F)	16 of 100 (Routine)
Rockport 1 ESE	United States	Record daily precipitation	34.8 mm (1.4 in)	16 of 100 (Routine)
Blaine	United States	Record high minimum temperature	11.1 C (52.0 F)	16 of 100 (Routine)
Newport	United States	Record high maximum temperature	25.6 C (78.1 F)	16 of 100 (Routine)
Whitefish Pt	United States	Record daily snowfall	0.8 cm (0.3 in)	15 of 100 (Routine)
Billings Wtp	United States	Record high minimum temperature	10.0 C (50.0 F)	15 of 100 (Routine)
Durham	United States	Record daily precipitation	41.7 mm (1.6 in)	15 of 100 (Routine)
Republic	United States	Record high minimum temperature	5.6 C (42.1 F)	15 of 100 (Routine)
Grover 2 S	United States	Record low maximum temperature	2.2 C (36.0 F)	15 of 100 (Routine)
Powell	United States	Record high minimum temperature	6.7 C (44.1 F)	15 of 100 (Routine)
Low Head (Comparison)	Australia	Record high minimum temperature	11.9 C (53.4 F)	14 of 100 (Routine)
Dawson	Canada	Record high minimum temperature	0.0 C (32.0 F)	14 of 100 (Routine)
Astana	Kazakhstan	Record daily precipitation	8.8 mm (0.35 in)	14 of 100 (Routine)
Hampton	United States	Record low maximum temperature	1.1 C (34.0 F)	14 of 100 (Routine)
Portsmouth-Sciotoville	United States	Record daily precipitation	12.2 mm (0.5 in)	14 of 100 (Routine)
Ellensburg	United States	Record high maximum temperature	23.3 C (73.9 F)	14 of 100 (Routine)
Masset Airport	Canada	Record high minimum temperature	12.2 C (54.0 F)	13 of 100 (Routine)
Calif Hot Springs Rs	United States	Record high minimum temperature	12.2 C (54.0 F)	13 of 100 (Routine)
Oakland	United States	Record high minimum temperature	17.2 C (63.0 F)	13 of 100 (Routine)
Kingston	United States	Record daily precipitation	19.6 mm (0.8 in)	13 of 100 (Routine)
Blaine	United States	Record high maximum temperature	18.9 C (66.0 F)	13 of 100 (Routine)
Kohala 179.1	United States	Record high maximum temperature	32.2 C (90.0 F)	13 of 100 (Routine)
Bratsk	Russia	Record high minimum temperature	-0.7 C (30.7 F)	12 of 100 (Routine)
Pretoria-Fountains	South Africa	Record daily precipitation	24.1 mm (0.9 in)	12 of 100 (Routine)
Inskip Inn	United States	Record high minimum temperature	14.4 C (57.9 F)	12 of 100 (Routine)
Busby	United States	Record high minimum temperature	5.6 C (42.1 F)	12 of 100 (Routine)

Counts by Type and Timescale

132 records

Records set or tied on 21 October 1937 by type: Highest daily maximum 30, Lowest daily maximum 6, Highest daily minimum 45, Lowest daily minimum 6, Heaviest daily rainfall 42, Heaviest daily snowfall 3.

Records on 21 October 1937 by type
Record type	Records
Highest daily maximum	30
Lowest daily maximum	6
Highest daily minimum	45
Lowest daily minimum	6
Heaviest daily rainfall	42
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 21 October 1937 by timescale: all-time 0, monthly 1, daily 131.

How Much Records Were Beaten By

100 broken records

Margins by which the 100 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 52.3. Ties are not counted.

Top 20 by Significance

21 October 1937

Top 20 records on 21 October 1937 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1937	Princeton, US	daily rain	66.8 mm (2.6 in)	52.3 mm (2.1 in)	11 years	35 of 100 (Notable)
21 October 1937	Bradshaw Homestead, AU	daily rain	35.1 mm (1.4 in)	27.5 mm (1.1 in)	22 years	33 of 100 (Routine)
21 October 1937	Farmington, US	daily rain	43.7 mm (1.7 in)	22.1 mm (0.9 in)	32 years	31 of 100 (Routine)
21 October 1937	Saint Johnsbury, US	daily rain	36.1 mm (1.4 in)	17.0 mm (0.7 in)	32 years	31 of 100 (Routine)
21 October 1937	Cairns Post Office, AU	daily low min	13.8 C (56.8 F)	3.4 C (6.1 F)	36 years	30 of 100 (Routine)
21 October 1937	Wilgerivier (Sar), ZA	daily rain	36.3 mm (1.4 in)	21.3 mm (0.8 in)	28 years	30 of 100 (Routine)
21 October 1937	Waterville Wwtp, US	daily rain	30.5 mm (1.2 in)	17.8 mm (0.7 in)	40 years	30 of 100 (Routine)
21 October 1937	Haverhill, US	daily rain	40.6 mm (1.6 in)	22.8 mm (0.9 in)	11 years	28 of 100 (Routine)
21 October 1937	Georgetown Post Office, AU	daily low min	9.9 C (49.8 F)	5.7 C (10.3 F)	19 years	27 of 100 (Routine)
21 October 1937	Vernon, US	daily rain	42.9 mm (1.7 in)	18.3 mm (0.7 in)	26 years	25 of 100 (Routine)
21 October 1937	Gumri, AM	daily low min	-6.8 C (19.8 F)	2.4 C (4.3 F)	41 years	23 of 100 (Routine)
21 October 1937	Provincetown 3 NW, US	daily rain	33.8 mm (1.3 in)	13.5 mm (0.5 in)	32 years	22 of 100 (Routine)
21 October 1937	Astoria, US	daily high max	23.9 C (75.0 F)	2.2 C (4.0 F)	30 years	21 of 100 (Routine)
21 October 1937	Barabinsk, RU	daily rain	18.8 mm (0.7 in)	13.5 mm (0.5 in)	28 years	20 of 100 (Routine)
21 October 1937	Atlin, CA	daily rain	15.2 mm (0.6 in)	7.6 mm (0.30 in)	18 years	20 of 100 (Routine)
21 October 1937	Geryville (El-Bayadh), DZ	daily rain	19.0 mm (0.7 in)	13.0 mm (0.5 in)	2 years	20 of 100 (Routine)
21 October 1937	Nalia, IN	daily rain	11.4 mm (0.4 in)	11.4 mm (0.4 in)	36 years	20 of 100 (Routine)
21 October 1937	New Westminster, CA	daily high max	22.2 C (72.0 F)	1.6 C (2.9 F)	36 years	20 of 100 (Routine)
21 October 1937	Providence Bay, CA	daily snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	39 years	20 of 100 (Routine)
21 October 1937	Gardiner, US	daily rain	36.1 mm (1.4 in)	10.2 mm (0.4 in)	32 years	20 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 1937

Records set or tied on this calendar date in each year from 1795 to 1937. 1937 had 132 records.

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

Records on 10-21 in each year
Year	Records
1795	1
1802	2
1805	1
1808	1
1810	1
1834	1
1835	1
1840	1
1845	1
1847	1
1850	1
1851	2
1854	1
1859	1
1863	1
1864	1
1866	3
1867	1
1868	3
1869	2
1871	1
1872	1
1873	1
1874	1
1876	4
1877	2
1878	1
1880	3
1881	1
1883	1
1886	1
1888	2
1889	2
1890	3
1891	6
1892	6
1893	1
1894	1
1895	2
1896	5
1898	6
1899	3
1900	2
1901	9
1902	2
1903	3
1904	30
1905	15
1906	11
1907	35
1908	35
1909	19
1910	21
1911	10
1912	18
1913	59
1914	35
1915	43
1916	70
1917	208
1918	18
1919	102
1920	149
1921	58
1922	78
1923	81
1924	389
1925	150
1926	77
1927	187
1928	78
1929	200
1930	492
1931	217
1932	165
1933	733
1934	407
1935	707
1936	407
1937	132
1938	121
1939	491
1940	537
1941	644
1942	258
1943	421
1944	367
1945	538
1946	297
1947	977
1948	266
1949	1,015
1950	438
1951	382
1952	848
1953	1,579
1954	279
1955	481
1956	276
1957	511
1958	322
1959	410
1960	408
1961	553
1962	359
1963	725
1964	457
1965	465
1966	425
1967	472
1968	174
1969	881
1970	548
1971	498
1972	813
1973	464
1974	866
1975	509
1976	1,467
1977	451
1978	616
1979	1,958
1980	378
1981	667
1982	870
1983	786
1984	1,872
1985	776
1986	814
1987	852
1988	696
1989	1,668
1990	807
1991	877
1992	1,095
1993	845
1994	670
1995	1,120
1996	1,581
1997	915
1998	711
1999	688
2000	771
2001	610
2002	1,241
2003	2,066
2004	1,674
2005	949
2006	1,057
2007	916
2008	610
2009	713
2010	710
2011	662
2012	703
2013	440
2014	716
2015	493
2016	734
2017	750
2018	440
2019	757
2020	1,135
2021	574
2022	629
2023	890
2024	1,138
2025	364

Download the Data

Data for records on 1937-10-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Histogram of margins by which records were beaten on 21 October 1937
Margin	Records
0 to 10	82
10 to 20	12
20 to 30	5
30 to 40	0
40 to 50	0
50 to 60	1