Weather Records on 21 October 1925

150 weather records were set or tied worldwide on 21 October 1925. Highest significance: Dunderlandsdalen, NO.

Key Facts for 21 October 1925

On 21 October 1925, 150 weather records were set or tied at long-record stations worldwide.
22 were record highs and 75 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 147 daily.
Dunderlandsdalen set a daily record snow depth of 45.0 cm (17.7 in) on 21 October 1925.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 421 records.

Record Map

150 stations

150 station records on 21 October 1925 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 October 1925: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dunderlandsdalen	Norway	Record snow depth	45.0 cm (17.7 in)	51 of 100 (Notable)
Sulitjelma	Norway	Record snow depth	46.0 cm (18.1 in)	49 of 100 (Notable)
Norddal	Norway	Record snow depth	35.0 cm (13.8 in)	32 of 100 (Routine)
Tustervatnet	Norway	Record snow depth	41.0 cm (16.1 in)	28 of 100 (Routine)
Paarl (Tnk)	South Africa	Record daily precipitation	33.5 mm (1.3 in)	25 of 100 (Routine)
Feodosiia	Ukraine	Record low maximum temperature	5.5 C (41.9 F)	24 of 100 (Routine)
Susendal	Norway	Record snow depth	34.0 cm (13.4 in)	23 of 100 (Routine)
Sheffield	United Kingdom	Record high minimum temperature	13.3 C (55.9 F)	21 of 100 (Routine)
Yerevan	Armenia	Record daily precipitation	23.7 mm (0.9 in)	20 of 100 (Routine)
Putbus	Germany	Record daily precipitation	22.5 mm (0.9 in)	20 of 100 (Routine)
Chicoutimi	Canada	Record daily snowfall	3.8 cm (1.5 in)	20 of 100 (Routine)
Ueckermunde	Germany	Record daily precipitation	12.8 mm (0.5 in)	20 of 100 (Routine)
Altentreptow	Germany	Record daily precipitation	11.0 mm (0.4 in)	20 of 100 (Routine)
Wittstock-Rote Muhle	Germany	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Waren	Germany	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Eersterivier (Bos)	South Africa	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Piketberg (Pol)	South Africa	Record daily precipitation	22.1 mm (0.9 in)	20 of 100 (Routine)
Syktyvkar	Russia	Record daily precipitation	6.7 mm (0.26 in)	20 of 100 (Routine)
Clontarf	Canada	Record daily snowfall	1.3 cm (0.5 in)	19 of 100 (Routine)
Schwerin	Germany	Record daily precipitation	9.7 mm (0.38 in)	19 of 100 (Routine)
Kirchdorf/Poel	Germany	Record daily precipitation	10.9 mm (0.4 in)	19 of 100 (Routine)
Paris	Canada	Record daily snowfall	0.8 cm (0.3 in)	18 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record daily precipitation	15.0 mm (0.6 in)	18 of 100 (Routine)
Krakmo	Norway	Record snow depth	44.0 cm (17.3 in)	18 of 100 (Routine)
Kieskamahoek (Pol)	South Africa	Record daily precipitation	13.7 mm (0.5 in)	18 of 100 (Routine)
Butterworth (Tnk)	South Africa	Record daily precipitation	18.0 mm (0.7 in)	18 of 100 (Routine)
Buffalo	United States	Record daily snowfall	1.3 cm (0.5 in)	18 of 100 (Routine)
Owen Sound	Canada	Record daily snowfall	7.6 cm (3.0 in)	17 of 100 (Routine)
Parry Sound	Canada	Record daily snowfall	5.1 cm (2.0 in)	17 of 100 (Routine)
London South	Canada	Record daily snowfall	0.5 cm (0.2 in)	17 of 100 (Routine)
Malmesbury	South Africa	Record daily precipitation	11.7 mm (0.5 in)	17 of 100 (Routine)
Vinga	Sweden	Record daily precipitation	17.0 mm (0.7 in)	17 of 100 (Routine)
Uccle	Belgium	Record high maximum temperature	21.6 C (70.9 F)	16 of 100 (Routine)
Battleford	Canada	Record daily precipitation	6.6 mm (0.26 in)	15 of 100 (Routine)
Ottawa Cda	Canada	Record daily snowfall	1.0 cm (0.4 in)	15 of 100 (Routine)
Caledon (Pol)	South Africa	Record daily precipitation	16.5 mm (0.6 in)	15 of 100 (Routine)
The Towers	South Africa	Record daily precipitation	9.9 mm (0.39 in)	15 of 100 (Routine)
Kluitjeskraal (Bos)	South Africa	Record daily precipitation	45.7 mm (1.8 in)	15 of 100 (Routine)
Tylden "Tulden"	South Africa	Record daily precipitation	2.5 mm (0.10 in)	15 of 100 (Routine)
Howell Wwtp	United States	Record low maximum temperature	2.8 C (37.0 F)	15 of 100 (Routine)
Georgetown	Canada	Record daily snowfall	2.0 cm (0.8 in)	14 of 100 (Routine)
Ottawa 4SW	United States	Record low minimum temperature	-6.1 C (21.0 F)	14 of 100 (Routine)
Buffalo	United States	Record snow depth	2.5 cm (1.0 in)	14 of 100 (Routine)
Sloan 3 S	United States	Record low minimum temperature	-1.1 C (30.0 F)	14 of 100 (Routine)
Ashland	United States	Record low minimum temperature	-3.9 C (25.0 F)	14 of 100 (Routine)
Olga 2 SE	United States	Record low maximum temperature	7.8 C (46.0 F)	14 of 100 (Routine)
Wheeling (1)	United States	Record low maximum temperature	7.8 C (46.0 F)	14 of 100 (Routine)
Havre Wb City	United States	Record high minimum temperature	7.8 C (46.0 F)	14 of 100 (Routine)
Crawley	South Africa	Record daily precipitation	3.8 mm (0.15 in)	13 of 100 (Routine)
Millsboro	United States	Record low minimum temperature	-2.2 C (28.0 F)	13 of 100 (Routine)
Madison Sewage Plt	United States	Record low minimum temperature	-1.1 C (30.0 F)	13 of 100 (Routine)
Aberdeen	United States	Record high minimum temperature	14.4 C (57.9 F)	13 of 100 (Routine)
Chatham 2	Canada	Record low maximum temperature	4.4 C (39.9 F)	12 of 100 (Routine)
Chatillon-Sur-Seine	France	Record daily precipitation	13.7 mm (0.5 in)	12 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record daily precipitation	10.5 mm (0.4 in)	12 of 100 (Routine)
Mena	United States	Record low minimum temperature	-1.1 C (30.0 F)	12 of 100 (Routine)
Santa Cruz	United States	Record high maximum temperature	31.7 C (89.1 F)	12 of 100 (Routine)
Carlinville	United States	Record low minimum temperature	-3.9 C (25.0 F)	12 of 100 (Routine)
Ann Arbor U of Mich	United States	Record low maximum temperature	3.9 C (39.0 F)	12 of 100 (Routine)
Uniontown 1 NE	United States	Record low maximum temperature	8.3 C (46.9 F)	12 of 100 (Routine)

Counts by Type and Timescale

150 records

Records set or tied on 21 October 1925 by type: Highest daily maximum 12, Lowest daily maximum 38, Highest daily minimum 10, Lowest daily minimum 37, Heaviest daily rainfall 33, Heaviest daily snowfall 12, Deepest snow cover 8.

Records on 21 October 1925 by type
Record type	Records
Highest daily maximum	12
Lowest daily maximum	38
Highest daily minimum	10
Lowest daily minimum	37
Heaviest daily rainfall	33
Heaviest daily snowfall	12
Deepest snow cover	8

Records on 21 October 1925 by timescale: all-time 0, monthly 3, daily 147.

How Much Records Were Beaten By

110 broken records

Margins by which the 110 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 410.0. Ties are not counted.

Top 20 by Significance

21 October 1925

Top 20 records on 21 October 1925 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1925	Dunderlandsdalen, NO	daily snow depth	45.0 cm (17.7 in)	33.0 cm (13.0 in)	28 years	51 of 100 (Notable)
21 October 1925	Sulitjelma, NO	daily snow depth	46.0 cm (18.1 in)	41.0 cm (16.1 in)	20 years	49 of 100 (Notable)
21 October 1925	Norddal, NO	daily snow depth	35.0 cm (13.8 in)	20.0 cm (7.9 in)	8 years	32 of 100 (Routine)
21 October 1925	Tustervatnet, NO	daily snow depth	41.0 cm (16.1 in)	17.0 cm (6.7 in)	28 years	28 of 100 (Routine)
21 October 1925	Paarl (Tnk), ZA	daily rain	33.5 mm (1.3 in)	19.3 mm (0.8 in)	12 years	25 of 100 (Routine)
21 October 1925	Feodosiia, UA	daily low max	5.5 C (41.9 F)	4.1 C (7.4 F)	42 years	24 of 100 (Routine)
21 October 1925	Susendal, NO	daily snow depth	34.0 cm (13.4 in)	15.0 cm (5.9 in)	4 years	23 of 100 (Routine)
21 October 1925	Sheffield, GB	daily high min	13.3 C (55.9 F)	3.1 C (5.6 F)	26 years	21 of 100 (Routine)
21 October 1925	Yerevan, AM	daily rain	23.7 mm (0.9 in)	18.7 mm (0.7 in)	14 years	20 of 100 (Routine)
21 October 1925	Putbus, DE	daily rain	22.5 mm (0.9 in)	8.5 mm (0.33 in)	50 years	20 of 100 (Routine)
21 October 1925	Chicoutimi, CA	daily snowfall	3.8 cm (1.5 in)	3.8 cm (1.5 in)	53 years	20 of 100 (Routine)
21 October 1925	Ueckermunde, DE	daily rain	12.8 mm (0.5 in)	9.8 mm (0.39 in)	33 years	20 of 100 (Routine)
21 October 1925	Altentreptow, DE	daily rain	11.0 mm (0.4 in)	7.3 mm (0.29 in)	33 years	20 of 100 (Routine)
21 October 1925	Wittstock-Rote Muhle, DE	daily rain	13.5 mm (0.5 in)	8.6 mm (0.34 in)	28 years	20 of 100 (Routine)
21 October 1925	Waren, DE	daily rain	13.5 mm (0.5 in)	7.5 mm (0.30 in)	33 years	20 of 100 (Routine)
21 October 1925	Eersterivier (Bos), ZA	daily rain	14.7 mm (0.6 in)	12.7 mm (0.5 in)	4 years	20 of 100 (Routine)
21 October 1925	Piketberg (Pol), ZA	daily rain	22.1 mm (0.9 in)	9.9 mm (0.39 in)	19 years	20 of 100 (Routine)
21 October 1925	Syktyvkar, RU	daily rain	6.7 mm (0.26 in)	2.2 mm (0.09 in)	33 years	20 of 100 (Routine)
21 October 1925	Clontarf, CA	daily snowfall	1.3 cm (0.5 in)	1.3 cm (0.5 in)	42 years	19 of 100 (Routine)
21 October 1925	Schwerin, DE	daily rain	9.7 mm (0.38 in)	2.7 mm (0.11 in)	33 years	19 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 1925

Records set or tied on this calendar date in each year from 1795 to 1925. 1925 had 150 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 1925-10-21: 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 2026-10-13 (13 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).

Margin	Records
0 to 100	105
100 to 200	2
200 to 300	1
300 to 400	1
400 to 500	1