Weather Records on 12 April 1951

1,102 weather records were set or tied worldwide on 12 April 1951. Highest significance: Toronto, CA.

Key Facts for 12 April 1951

On 12 April 1951, 1,102 weather records were set or tied at long-record stations worldwide.
104 were record highs and 271 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 25 monthly and 1,077 daily.
Toronto set a daily record precipitation of 46.7 mm (1.8 in) on 12 April 1951.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 498 records.

Record Map

1,102 stations

1,102 station records on 12 April 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 April 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Toronto	Canada	Record daily precipitation	46.7 mm (1.8 in)	77 of 100 (Major)
Collingwood	Canada	Record daily precipitation	36.3 mm (1.4 in)	64 of 100 (Major)
Fremantle	Australia	Record daily precipitation	60.5 mm (2.4 in)	61 of 100 (Major)
Greenough	Australia	Record daily precipitation	37.8 mm (1.5 in)	58 of 100 (Notable)
Barrie	Canada	Record daily precipitation	43.9 mm (1.7 in)	58 of 100 (Notable)
Covelong	India	Record daily precipitation	56.1 mm (2.2 in)	58 of 100 (Notable)
Mundaring	Australia	Record daily precipitation	37.1 mm (1.5 in)	56 of 100 (Notable)
Marradong	Australia	Record daily precipitation	42.9 mm (1.7 in)	56 of 100 (Notable)
Kenilworth Tu	Australia	Record daily precipitation	47.0 mm (1.9 in)	55 of 100 (Notable)
The Oaks	Australia	Record daily precipitation	44.7 mm (1.8 in)	55 of 100 (Notable)
Aldervale	Australia	Record daily precipitation	47.0 mm (1.9 in)	54 of 100 (Notable)
Scotsburn (Mount Boninyong)	Australia	Record daily precipitation	35.6 mm (1.4 in)	51 of 100 (Notable)
Mortlake	Australia	Record daily precipitation	27.7 mm (1.1 in)	51 of 100 (Notable)
Oakland	Australia	Record daily precipitation	35.6 mm (1.4 in)	50 of 100 (Notable)
Harrietville	Australia	Record daily precipitation	64.5 mm (2.5 in)	50 of 100 (Notable)
Cobden (Post Office)	Australia	Record daily precipitation	33.0 mm (1.3 in)	50 of 100 (Notable)
Southampton	Canada	Record daily precipitation	28.2 mm (1.1 in)	50 of 100 (Notable)
Wungong Dam	Australia	Record daily precipitation	67.1 mm (2.6 in)	49 of 100 (Notable)
Perillup	Australia	Record daily precipitation	64.8 mm (2.6 in)	49 of 100 (Notable)
Bunkin	Australia	Record daily precipitation	33.3 mm (1.3 in)	49 of 100 (Notable)
Alpena Co Rgnl AP	United States	Record daily precipitation	32.3 mm (1.3 in)	49 of 100 (Notable)
Athabasca	Canada	Record daily snowfall	27.9 cm (11.0 in)	46 of 100 (Notable)
Alton	Canada	Record daily precipitation	43.2 mm (1.7 in)	46 of 100 (Notable)
Raipur	India	Record daily precipitation	30.5 mm (1.2 in)	44 of 100 (Notable)
Bangalup	Australia	Record daily precipitation	43.7 mm (1.7 in)	43 of 100 (Notable)
Boddington Shire	Australia	Record daily precipitation	28.4 mm (1.1 in)	43 of 100 (Notable)
Tobermory	Canada	Record daily precipitation	43.2 mm (1.7 in)	43 of 100 (Notable)
Orangeville	Canada	Record daily precipitation	32.3 mm (1.3 in)	43 of 100 (Notable)
Serpentine	Australia	Record daily precipitation	48.3 mm (1.9 in)	42 of 100 (Notable)
Dumbleyung	Australia	Record daily precipitation	27.7 mm (1.1 in)	42 of 100 (Notable)
Blackbutt Post Office	Australia	Record daily precipitation	47.0 mm (1.9 in)	42 of 100 (Notable)
Mykland	Norway	Record snow depth	176.0 cm (69.3 in)	42 of 100 (Notable)
Bakke	Norway	Record daily precipitation	49.9 mm (2.0 in)	42 of 100 (Notable)
Nelamangala	India	Record daily precipitation	59.7 mm (2.4 in)	41 of 100 (Notable)
Molteno (Mun)	South Africa	Record daily precipitation	33.0 mm (1.3 in)	41 of 100 (Notable)
Madras/Minambakkam	India	Record daily precipitation	65.0 mm (2.6 in)	40 of 100 (Notable)
Aseral	Norway	Record daily precipitation	43.1 mm (1.7 in)	40 of 100 (Notable)
Avon Park 2 W	United States	Record daily precipitation	66.0 mm (2.6 in)	40 of 100 (Notable)
Coniston	Canada	Record daily precipitation	30.5 mm (1.2 in)	39 of 100 (Notable)
Guelph Oac	Canada	Record daily precipitation	26.4 mm (1.0 in)	39 of 100 (Notable)
Bidar	India	Record daily precipitation	34.3 mm (1.4 in)	39 of 100 (Notable)
Strawberry North	Australia	Record daily precipitation	28.7 mm (1.1 in)	38 of 100 (Notable)
Cuballing	Australia	Record daily precipitation	41.4 mm (1.6 in)	38 of 100 (Notable)
Wandering Comparison	Australia	Record daily precipitation	28.7 mm (1.1 in)	38 of 100 (Notable)
Nairibin	Australia	Record daily precipitation	44.5 mm (1.8 in)	38 of 100 (Notable)
Gellibrand River West	Australia	Record daily precipitation	35.1 mm (1.4 in)	38 of 100 (Notable)
Hamilton	Australia	Record daily precipitation	26.2 mm (1.0 in)	38 of 100 (Notable)
Tiruvallur	India	Record daily precipitation	53.3 mm (2.1 in)	38 of 100 (Notable)
Kuringup	Australia	Record daily precipitation	29.0 mm (1.1 in)	37 of 100 (Notable)
Cloughton	Australia	Record daily precipitation	26.2 mm (1.0 in)	37 of 100 (Notable)
Weeaproinah	Australia	Record daily precipitation	56.4 mm (2.2 in)	37 of 100 (Notable)
Turbine	Canada	Record daily precipitation	29.5 mm (1.2 in)	37 of 100 (Notable)
Tiruttani	India	Record daily precipitation	46.0 mm (1.8 in)	37 of 100 (Notable)
Rottnest Island Lighthouse	Australia	Record daily precipitation	27.2 mm (1.1 in)	36 of 100 (Notable)
Point Lowly Lighthouse	Australia	Record daily precipitation	26.7 mm (1.1 in)	36 of 100 (Notable)
Tarikere	India	Record daily precipitation	55.6 mm (2.2 in)	36 of 100 (Notable)
Pesaro	Italy	Record daily precipitation	27.8 mm (1.1 in)	36 of 100 (Notable)
Alton	United States	Record daily snowfall	7.6 cm (3.0 in)	36 of 100 (Notable)
Lindsay	Canada	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Menno	United States	Record daily snowfall	5.1 cm (2.0 in)	35 of 100 (Notable)

Counts by Type and Timescale

1,102 records

Records set or tied on 12 April 1951 by type: Highest daily maximum 58, Lowest daily maximum 185, Highest daily minimum 46, Lowest daily minimum 86, Heaviest daily rainfall 603, Heaviest daily snowfall 90, Deepest snow cover 34.

Records on 12 April 1951 by type
Record type	Records
Highest daily maximum	58
Lowest daily maximum	185
Highest daily minimum	46
Lowest daily minimum	86
Heaviest daily rainfall	603
Heaviest daily snowfall	90
Deepest snow cover	34

Records on 12 April 1951 by timescale: all-time 0, monthly 25, daily 1,077.

How Much Records Were Beaten By

987 broken records

Margins by which the 987 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 720.0. Ties are not counted.

Top 20 by Significance

12 April 1951

Top 20 records on 12 April 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 April 1951	Toronto, CA	daily rain	46.7 mm (1.8 in)	30.7 mm (1.2 in)	92 years	77 of 100 (Major)
12 April 1951	Collingwood, CA	daily rain	36.3 mm (1.4 in)	32.2 mm (1.3 in)	54 years	64 of 100 (Major)
12 April 1951	Fremantle, AU	daily rain	60.5 mm (2.4 in)	52.1 mm (2.1 in)	37 years	61 of 100 (Major)
12 April 1951	Greenough, AU	daily rain	37.8 mm (1.5 in)	32.2 mm (1.3 in)	37 years	58 of 100 (Notable)
12 April 1951	Barrie, CA	monthly rain	43.9 mm (1.7 in)	10.6 mm (0.4 in)	79 years	58 of 100 (Notable)
12 April 1951	Covelong, IN	daily rain	56.1 mm (2.2 in)	53.1 mm (2.1 in)	44 years	58 of 100 (Notable)
12 April 1951	Mundaring, AU	daily rain	37.1 mm (1.5 in)	34.6 mm (1.4 in)	37 years	56 of 100 (Notable)
12 April 1951	Marradong, AU	daily rain	42.9 mm (1.7 in)	33.8 mm (1.3 in)	37 years	56 of 100 (Notable)
12 April 1951	Kenilworth Tu, AU	daily rain	47.0 mm (1.9 in)	43.4 mm (1.7 in)	37 years	55 of 100 (Notable)
12 April 1951	The Oaks, AU	daily rain	44.7 mm (1.8 in)	42.7 mm (1.7 in)	37 years	55 of 100 (Notable)
12 April 1951	Aldervale, AU	daily rain	47.0 mm (1.9 in)	36.8 mm (1.4 in)	37 years	54 of 100 (Notable)
12 April 1951	Scotsburn (Mount Boninyong), AU	daily rain	35.6 mm (1.4 in)	21.4 mm (0.8 in)	58 years	51 of 100 (Notable)
12 April 1951	Mortlake, AU	daily rain	27.7 mm (1.1 in)	16.3 mm (0.6 in)	54 years	51 of 100 (Notable)
12 April 1951	Oakland, AU	daily rain	35.6 mm (1.4 in)	28.2 mm (1.1 in)	20 years	50 of 100 (Notable)
12 April 1951	Harrietville, AU	daily rain	64.5 mm (2.5 in)	42.1 mm (1.7 in)	36 years	50 of 100 (Notable)
12 April 1951	Cobden (Post Office), AU	daily rain	33.0 mm (1.3 in)	24.1 mm (0.9 in)	17 years	50 of 100 (Notable)
12 April 1951	Southampton, CA	daily rain	28.2 mm (1.1 in)	13.7 mm (0.5 in)	64 years	50 of 100 (Notable)
12 April 1951	Wungong Dam, AU	daily rain	67.1 mm (2.6 in)	49.3 mm (1.9 in)	20 years	49 of 100 (Notable)
12 April 1951	Perillup, AU	daily rain	64.8 mm (2.6 in)	57.2 mm (2.3 in)	20 years	49 of 100 (Notable)
12 April 1951	Bunkin, AU	daily rain	33.3 mm (1.3 in)	33.3 mm (1.3 in)	44 years	49 of 100 (Notable)

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 1951

Records set or tied on this calendar date in each year from 1793 to 1951. 1951 had 1,102 records.

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

Records on 04-12 in each year
Year	Records
1793	1
1805	1
1810	1
1812	2
1817	2
1826	1
1831	1
1845	1
1850	1
1854	1
1865	2
1866	2
1868	4
1869	5
1871	1
1873	1
1874	5
1876	2
1877	1
1878	1
1879	4
1881	1
1882	1
1885	2
1889	4
1890	10
1891	3
1892	2
1893	4
1894	1
1895	1
1896	1
1897	4
1898	4
1899	5
1900	6
1901	5
1902	3
1903	10
1904	11
1905	19
1906	24
1907	5
1908	10
1909	16
1910	15
1911	26
1912	48
1913	88
1914	41
1915	125
1916	37
1917	33
1918	40
1919	39
1920	148
1921	34
1922	48
1923	134
1924	69
1925	178
1926	347
1927	179
1928	145
1929	141
1930	638
1931	267
1932	253
1933	551
1934	531
1935	171
1936	277
1937	236
1938	175
1939	1,174
1940	1,407
1941	869
1942	191
1943	614
1944	423
1945	884
1946	347
1947	733
1948	1,496
1949	358
1950	638
1951	1,102
1952	455
1953	707
1954	424
1955	611
1956	382
1957	910
1958	542
1959	513
1960	314
1961	551
1962	510
1963	518
1964	363
1965	659
1966	520
1967	682
1968	717
1969	352
1970	568
1971	587
1972	1,316
1973	903
1974	822
1975	704
1976	1,076
1977	1,069
1978	533
1979	1,096
1980	611
1981	1,068
1982	852
1983	877
1984	671
1985	734
1986	1,350
1987	606
1988	1,369
1989	1,838
1990	946
1991	1,484
1992	1,000
1993	586
1994	1,375
1995	1,173
1996	994
1997	3,094
1998	1,409
1999	873
2000	784
2001	1,369
2002	600
2003	1,079
2004	964
2005	536
2006	796
2007	1,144
2008	1,015
2009	811
2010	935
2011	1,026
2012	666
2013	1,039
2014	597
2015	504
2016	595
2017	519
2018	868
2019	685
2020	1,150
2021	710
2022	1,862
2023	1,262
2024	1,086
2025	1,281
2026	622

Download the Data

Data for records on 1951-04-12: 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).

Margin	Records
0 to 100	975
100 to 200	3
200 to 300	6
300 to 400	1
400 to 500	0
500 to 600	1
600 to 700	0
700 to 800	1