Weather Records on 12 March 1921

59 weather records were set or tied worldwide on 12 March 1921. Highest significance: Malvern, US.

Key Facts for 12 March 1921

On 12 March 1921, 59 weather records were set or tied at long-record stations worldwide.
40 were record highs and 5 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 59 daily.
Malvern set a daily record precipitation of 88.1 mm (3.5 in) on 12 March 1921.
Across 158 earlier years (1810 to 2026) the same calendar date averaged 498 records.

Record Map

59 stations

59 station records on 12 March 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 March 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Malvern	United States	Record daily precipitation	88.1 mm (3.5 in)	40 of 100 (Notable)
Pine Bluff	United States	Record daily precipitation	59.9 mm (2.4 in)	35 of 100 (Notable)
Halmstad	Sweden	Record high maximum temperature	11.0 C (51.8 F)	26 of 100 (Routine)
Mackay Post Office	Australia	Record low maximum temperature	24.3 C (75.7 F)	25 of 100 (Routine)
Vestervig	Denmark	Record high maximum temperature	12.0 C (53.6 F)	24 of 100 (Routine)
Skara 1	Sweden	Record high maximum temperature	12.0 C (53.6 F)	23 of 100 (Routine)
Tennant Creek Post Office	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Boras	Sweden	Record high maximum temperature	14.0 C (57.2 F)	20 of 100 (Routine)
Gavle	Sweden	Record high maximum temperature	10.0 C (50.0 F)	19 of 100 (Routine)
Alice Springs Post Office	Australia	Record daily precipitation	1.3 mm (0.05 in)	18 of 100 (Routine)
Jonkoping	Sweden	Record high maximum temperature	10.5 C (50.9 F)	18 of 100 (Routine)
Brinkley	United States	Record daily precipitation	72.6 mm (2.9 in)	18 of 100 (Routine)
Rockhampton Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	16 of 100 (Routine)
Visby_Flygplats	Sweden	Record high maximum temperature	9.1 C (48.4 F)	16 of 100 (Routine)
Vanersborg	Sweden	Record high maximum temperature	10.6 C (51.1 F)	16 of 100 (Routine)
St Lawrence Post Office	Australia	Record daily precipitation	26.4 mm (1.0 in)	15 of 100 (Routine)
Millaquin Sugar	Australia	Record daily precipitation	15.5 mm (0.6 in)	15 of 100 (Routine)
Calgary Int'l A	Canada	Record low minimum temperature	-35.0 C (-31.0 F)	15 of 100 (Routine)
Nordby (Fano)	Denmark	Record high maximum temperature	10.4 C (50.7 F)	15 of 100 (Routine)
Pitea	Sweden	Record high maximum temperature	7.0 C (44.6 F)	15 of 100 (Routine)
Camden 1	United States	Record daily precipitation	50.8 mm (2.0 in)	15 of 100 (Routine)
Adrian 2 NNE	United States	Record daily precipitation	22.9 mm (0.9 in)	15 of 100 (Routine)
Prince Albert	Canada	Record low minimum temperature	-36.7 C (-34.1 F)	14 of 100 (Routine)
Windsor Riverside	Canada	Record high maximum temperature	20.6 C (69.1 F)	14 of 100 (Routine)
Charlottetown	Canada	Record high maximum temperature	8.9 C (48.0 F)	14 of 100 (Routine)
Kazalinsk	Kazakhstan	Record daily precipitation	4.1 mm (0.16 in)	14 of 100 (Routine)
Harnosand	Sweden	Record high minimum temperature	0.0 C (32.0 F)	14 of 100 (Routine)
Cambridge Downs Station	Australia	Record daily precipitation	19.8 mm (0.8 in)	13 of 100 (Routine)
Fredericton Unb	Canada	Record high maximum temperature	12.2 C (54.0 F)	13 of 100 (Routine)
Banff	Canada	Record low minimum temperature	-33.3 C (-27.9 F)	12 of 100 (Routine)
Montreal McGill	Canada	Record high maximum temperature	8.9 C (48.0 F)	12 of 100 (Routine)
Halifax	Canada	Record high maximum temperature	13.3 C (55.9 F)	12 of 100 (Routine)
Wrixum/Fohr	Germany	Record high maximum temperature	12.2 C (54.0 F)	12 of 100 (Routine)
St. Petersburg	Russia	Record high maximum temperature	7.3 C (45.1 F)	12 of 100 (Routine)
Haparanda	Sweden	Record high maximum temperature	3.5 C (38.3 F)	12 of 100 (Routine)
Barrie	Canada	Record high minimum temperature	0.6 C (33.1 F)	11 of 100 (Routine)
Lindsay	Canada	Record high maximum temperature	10.6 C (51.1 F)	11 of 100 (Routine)
Renfrew	Canada	Record high maximum temperature	11.1 C (52.0 F)	10 of 100 (Routine)
Tranebjerg	Denmark	Record high maximum temperature	9.2 C (48.6 F)	10 of 100 (Routine)
Orebro	Sweden	Record high maximum temperature	9.2 C (48.6 F)	10 of 100 (Routine)
Jokkmokk	Sweden	Record high maximum temperature	5.2 C (41.4 F)	10 of 100 (Routine)
Ottawa Cda	Canada	Record high maximum temperature	7.2 C (45.0 F)	9 of 100 (Routine)
Stonecliffe	Canada	Record high maximum temperature	8.9 C (48.0 F)	9 of 100 (Routine)
Brome	Canada	Record high maximum temperature	11.1 C (52.0 F)	9 of 100 (Routine)
Karesuando	Sweden	Record high maximum temperature	4.0 C (39.2 F)	9 of 100 (Routine)
Emu Park Hill St	Australia	Record daily precipitation	36.6 mm (1.4 in)	8 of 100 (Routine)
Ottawa	Canada	Record high maximum temperature	8.9 C (48.0 F)	8 of 100 (Routine)
Jokkmokk	Sweden	Record high minimum temperature	-4.5 C (23.9 F)	8 of 100 (Routine)
St. Petersburg	Russia	Record high minimum temperature	1.0 C (33.8 F)	7 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record high minimum temperature	0.0 C (32.0 F)	6 of 100 (Routine)
Lake Cochituate	United States	Record daily precipitation	16.5 mm (0.6 in)	4 of 100 (Routine)
Muenster	Germany	Record high maximum temperature	17.7 C (63.9 F)	3 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record high maximum temperature	10.0 C (50.0 F)	3 of 100 (Routine)
Sveg	Sweden	Record high maximum temperature	6.5 C (43.7 F)	3 of 100 (Routine)
Calgary Int'l A	Canada	Record low maximum temperature	-20.0 C (-4.0 F)	2 of 100 (Routine)
Kingston Queens U	Canada	Record high maximum temperature	8.9 C (48.0 F)	2 of 100 (Routine)
Stockholm	Sweden	Record high maximum temperature	9.0 C (48.2 F)	2 of 100 (Routine)
Lexington Bluegrass AP	United States	Record high minimum temperature	11.7 C (53.1 F)	2 of 100 (Routine)
Gainesville UNIV of Fl	United States	Record high maximum temperature	28.9 C (84.0 F)	0 of 100 (Routine)

Counts by Type and Timescale

59 records

Records set or tied on 12 March 1921 by type: Highest daily maximum 34, Lowest daily maximum 2, Highest daily minimum 6, Lowest daily minimum 3, Heaviest daily rainfall 14.

Records on 12 March 1921 by type
Record type	Records
Highest daily maximum	34
Lowest daily maximum	2
Highest daily minimum	6
Lowest daily minimum	3
Heaviest daily rainfall	14
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 March 1921 by timescale: all-time 0, monthly 0, daily 59.

How Much Records Were Beaten By

52 broken records

Margins by which the 52 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 58.9. Ties are not counted.

Top 20 by Significance

12 March 1921

Top 20 records on 12 March 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 March 1921	Malvern, US	daily rain	88.1 mm (3.5 in)	58.9 mm (2.3 in)	0 years	40 of 100 (Notable)
12 March 1921	Pine Bluff, US	daily rain	59.9 mm (2.4 in)	44.4 mm (1.7 in)	19 years	35 of 100 (Notable)
12 March 1921	Halmstad, SE	daily high max	11.0 C (51.8 F)	4.0 C (7.2 F)	38 years	26 of 100 (Routine)
12 March 1921	Mackay Post Office, AU	daily low max	24.3 C (75.7 F)	2.9 C (5.2 F)	21 years	25 of 100 (Routine)
12 March 1921	Vestervig, DK	daily high max	12.0 C (53.6 F)	4.4 C (7.9 F)	21 years	24 of 100 (Routine)
12 March 1921	Skara 1, SE	daily high max	12.0 C (53.6 F)	3.6 C (6.5 F)	38 years	23 of 100 (Routine)
12 March 1921	Tennant Creek Post Office, AU	daily rain	10.2 mm (0.4 in)	10.2 mm (0.4 in)	40 years	20 of 100 (Routine)
12 March 1921	Boras, SE	daily high max	14.0 C (57.2 F)	5.0 C (9.0 F)	16 years	20 of 100 (Routine)
12 March 1921	Gavle, SE	daily high max	10.0 C (50.0 F)	2.0 C (3.6 F)	38 years	19 of 100 (Routine)
12 March 1921	Alice Springs Post Office, AU	daily rain	1.3 mm (0.05 in)	1.3 mm (0.05 in)	46 years	18 of 100 (Routine)
12 March 1921	Jonkoping, SE	daily high max	10.5 C (50.9 F)	1.5 C (2.7 F)	38 years	18 of 100 (Routine)
12 March 1921	Brinkley, US	daily rain	72.6 mm (2.9 in)	19.3 mm (0.8 in)	19 years	18 of 100 (Routine)
12 March 1921	Rockhampton Post Office, AU	daily rain	29.2 mm (1.1 in)	14.5 mm (0.6 in)	15 years	16 of 100 (Routine)
12 March 1921	Visby_Flygplats, SE	daily high max	9.1 C (48.4 F)	1.1 C (2.0 F)	30 years	16 of 100 (Routine)
12 March 1921	Vanersborg, SE	daily high max	10.6 C (51.1 F)	2.6 C (4.7 F)	21 years	16 of 100 (Routine)
12 March 1921	St Lawrence Post Office, AU	daily rain	26.4 mm (1.0 in)	13.7 mm (0.5 in)	20 years	15 of 100 (Routine)
12 March 1921	Millaquin Sugar, AU	daily rain	15.5 mm (0.6 in)	8.9 mm (0.35 in)	26 years	15 of 100 (Routine)
12 March 1921	Calgary Int'l A, CA	daily low min	-35.0 C (-31.0 F)	3.9 C (7.0 F)	23 years	15 of 100 (Routine)
12 March 1921	Nordby (Fano), DK	daily high max	10.4 C (50.7 F)	1.7 C (3.1 F)	21 years	15 of 100 (Routine)
12 March 1921	Pitea, SE	daily high max	7.0 C (44.6 F)	1.0 C (1.8 F)	34 years	15 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

1810 to 1921

Records set or tied on this calendar date in each year from 1810 to 1921. 1921 had 59 records.

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

Records on 03-12 in each year
Year	Records
1810	2
1822	2
1845	2
1847	2
1849	1
1854	1
1855	1
1857	1
1859	1
1860	2
1861	1
1862	1
1867	1
1878	1
1879	1
1881	2
1882	1
1883	3
1884	3
1885	1
1886	6
1887	1
1888	4
1890	5
1891	5
1892	1
1893	1
1894	2
1895	3
1896	2
1897	4
1899	2
1900	4
1901	3
1902	14
1903	8
1904	7
1905	12
1906	34
1907	9
1908	11
1909	26
1910	23
1911	15
1912	7
1913	19
1914	89
1915	17
1916	27
1917	54
1918	96
1919	50
1920	42
1921	59
1922	29
1923	165
1924	168
1925	127
1926	128
1927	399
1928	204
1929	324
1930	210
1931	159
1932	589
1933	290
1934	639
1935	330
1936	399
1937	189
1938	293
1939	525
1940	588
1941	215
1942	239
1943	194
1944	448
1945	241
1946	532
1947	727
1948	1,510
1949	544
1950	841
1951	475
1952	433
1953	298
1954	603
1955	613
1956	1,159
1957	371
1958	611
1959	513
1960	891
1961	432
1962	846
1963	669
1964	285
1965	422
1966	384
1967	1,135
1968	931
1969	1,254
1970	391
1971	481
1972	1,215
1973	890
1974	784
1975	540
1976	657
1977	1,834
1978	554
1979	606
1980	601
1981	1,112
1982	860
1983	1,057
1984	1,235
1985	886
1986	658
1987	728
1988	918
1989	1,402
1990	2,905
1991	607
1992	1,423
1993	931
1994	619
1995	1,067
1996	1,030
1997	990
1998	2,483
1999	636
2000	715
2001	1,392
2002	935
2003	703
2004	649
2005	1,020
2006	2,121
2007	1,652
2008	684
2009	1,148
2010	791
2011	494
2012	981
2013	874
2014	645
2015	793
2016	809
2017	702
2018	609
2019	865
2020	762
2021	659
2022	1,144
2023	877
2024	527
2025	615
2026	1,212

Download the Data

Data for records on 1921-03-12: 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).

Histogram of margins by which records were beaten on 12 March 1921
Margin	Records
0 to 10	45
10 to 20	5
20 to 30	0
30 to 40	0
40 to 50	1
50 to 60	1