Weather Records on 20 April 1967

864 weather records were set or tied worldwide on 20 April 1967. Highest significance: Williston Sloulin Fld, US.

Key Facts for 20 April 1967

On 20 April 1967, 864 weather records were set or tied at long-record stations worldwide.
141 were record highs and 318 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 31 monthly and 830 daily.
Williston Sloulin Fld set a monthly record daily precipitation of 48.3 mm (1.9 in) on 20 April 1967.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 459 records.

Record Map

864 stations

864 station records on 20 April 1967 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1967: highest significance records shown on the map
Station	Country	Type	Value	Significance
Williston Sloulin Fld	United States	Record daily precipitation	48.3 mm (1.9 in)	65 of 100 (Major)
Lovell	United States	Record daily snowfall	12.7 cm (5.0 in)	63 of 100 (Major)
Medicine Lake 3 SE	United States	Record snow depth	25.4 cm (10.0 in)	62 of 100 (Major)
Medicine Lake 3 SE	United States	Record daily snowfall	25.4 cm (10.0 in)	61 of 100 (Major)
Warroad	United States	Record daily precipitation	35.6 mm (1.4 in)	56 of 100 (Notable)
Chinook	United States	Record daily precipitation	29.0 mm (1.1 in)	56 of 100 (Notable)
Sao Jose Do Egito	Brazil	Record daily precipitation	94.4 mm (3.7 in)	55 of 100 (Notable)
Virden	Canada	Record daily snowfall	20.3 cm (8.0 in)	55 of 100 (Notable)
Brady Aznoe	United States	Record snow depth	22.9 cm (9.0 in)	55 of 100 (Notable)
Morris	Canada	Record daily precipitation	33.0 mm (1.3 in)	54 of 100 (Notable)
Crosby	United States	Record daily snowfall	10.2 cm (4.0 in)	54 of 100 (Notable)
Hannah 2 N	United States	Record daily precipitation	44.5 mm (1.8 in)	54 of 100 (Notable)
Savage	United States	Record daily precipitation	47.0 mm (1.9 in)	53 of 100 (Notable)
Larimore 4SW	United States	Record daily precipitation	33.3 mm (1.3 in)	53 of 100 (Notable)
Yellow Grass	Canada	Record daily snowfall	22.9 cm (9.0 in)	51 of 100 (Notable)
Cardston	Canada	Record daily snowfall	20.3 cm (8.0 in)	49 of 100 (Notable)
Dunkirk 19NNE	United States	Record daily snowfall	10.2 cm (4.0 in)	48 of 100 (Notable)
Joplin	United States	Record daily snowfall	12.7 cm (5.0 in)	48 of 100 (Notable)
Vida 6 NE	United States	Record daily snowfall	25.4 cm (10.0 in)	48 of 100 (Notable)
Anucino	Russia	Record daily precipitation	27.0 mm (1.1 in)	47 of 100 (Notable)
Park River	United States	Record daily precipitation	62.7 mm (2.5 in)	47 of 100 (Notable)
Sta. Cruz de Tenerife	Spain	Record daily precipitation	26.8 mm (1.1 in)	46 of 100 (Notable)
Malta	United States	Record daily snowfall	12.7 cm (5.0 in)	46 of 100 (Notable)
Cascade 5 S	United States	Record snow depth	15.2 cm (6.0 in)	45 of 100 (Notable)
Morden	Canada	Record daily precipitation	37.3 mm (1.5 in)	44 of 100 (Notable)
Morden Cda	Canada	Record daily precipitation	33.3 mm (1.3 in)	43 of 100 (Notable)
Groenfontein "Montagu"	South Africa	Record daily precipitation	39.5 mm (1.6 in)	43 of 100 (Notable)
Epping	United States	Record daily precipitation	36.1 mm (1.4 in)	42 of 100 (Notable)
Fort Macleod	Canada	Record daily snowfall	14.0 cm (5.5 in)	41 of 100 (Notable)
Ceylon	Canada	Record daily precipitation	30.5 mm (1.2 in)	41 of 100 (Notable)
Ceylon	Canada	Record daily snowfall	30.5 cm (12.0 in)	41 of 100 (Notable)
Ft Benton	United States	Record daily snowfall	7.6 cm (3.0 in)	40 of 100 (Notable)
Harlem	United States	Record daily snowfall	22.9 cm (9.0 in)	40 of 100 (Notable)
Lustre 4 NNW	United States	Record daily snowfall	17.8 cm (7.0 in)	40 of 100 (Notable)
Simpson 6 N - Wildhorse	United States	Record daily snowfall	20.3 cm (8.0 in)	40 of 100 (Notable)
Henrietta	United States	Record daily precipitation	65.3 mm (2.6 in)	40 of 100 (Notable)
Hopetoun	Australia	Record daily precipitation	27.9 mm (1.1 in)	39 of 100 (Notable)
Jaicos	Brazil	Record daily precipitation	62.5 mm (2.5 in)	39 of 100 (Notable)
Palmas de Monte Alto	Brazil	Record daily precipitation	41.2 mm (1.6 in)	39 of 100 (Notable)
Nossa Senhora Das Dores	Brazil	Record daily precipitation	51.7 mm (2.0 in)	39 of 100 (Notable)
Brandon Cda	Canada	Record daily snowfall	18.0 cm (7.1 in)	39 of 100 (Notable)
Manyberries Cda	Canada	Record daily precipitation	41.9 mm (1.6 in)	38 of 100 (Notable)
Russell	Canada	Record daily snowfall	7.6 cm (3.0 in)	38 of 100 (Notable)
Karikode	India	Record daily precipitation	88.9 mm (3.5 in)	37 of 100 (Notable)
Williston Sloulin Fld	United States	Record daily snowfall	6.1 cm (2.4 in)	36 of 100 (Notable)
Cloudskraal	South Africa	Record daily precipitation	61.5 mm (2.4 in)	35 of 100 (Notable)
Tahoe City	United States	Record low minimum temperature	-12.8 C (9.0 F)	35 of 100 (Notable)
Fairfield	United States	Record daily snowfall	12.7 cm (5.0 in)	35 of 100 (Notable)
Porteiras	Brazil	Record daily precipitation	55.1 mm (2.2 in)	34 of 100 (Routine)
Morro Do Chapeu	Brazil	Record daily precipitation	73.0 mm (2.9 in)	33 of 100 (Routine)
De Sabla	United States	Record daily snowfall	10.2 cm (4.0 in)	33 of 100 (Routine)
Choteau	United States	Record snow depth	15.2 cm (6.0 in)	33 of 100 (Routine)
Arcoverde (Rio Branco)	Brazil	Record daily precipitation	44.0 mm (1.7 in)	32 of 100 (Routine)
Foremost	Canada	Record daily snowfall	18.8 cm (7.4 in)	32 of 100 (Routine)
Dunkirk 19NNE	United States	Record snow depth	22.9 cm (9.0 in)	32 of 100 (Routine)
Ft Assiniboine	United States	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Cooperstown	United States	Record daily precipitation	25.4 mm (1.0 in)	32 of 100 (Routine)
Courtenay 1 NW	United States	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Roscoe	United States	Record daily precipitation	41.9 mm (1.6 in)	32 of 100 (Routine)
Anatone	United States	Record daily snowfall	7.6 cm (3.0 in)	32 of 100 (Routine)

Counts by Type and Timescale

864 records

Records set or tied on 20 April 1967 by type: Highest daily maximum 76, Lowest daily maximum 219, Highest daily minimum 65, Lowest daily minimum 99, Heaviest daily rainfall 288, Heaviest daily snowfall 93, Deepest snow cover 24.

Records on 20 April 1967 by type
Record type	Records
Highest daily maximum	76
Lowest daily maximum	219
Highest daily minimum	65
Lowest daily minimum	99
Heaviest daily rainfall	288
Heaviest daily snowfall	93
Deepest snow cover	24

Records on 20 April 1967 by timescale: all-time 3, monthly 31, daily 830.

How Much Records Were Beaten By

702 broken records

Margins by which the 702 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 584.0. Ties are not counted.

Top 20 by Significance

20 April 1967

Top 20 records on 20 April 1967 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1967	Williston Sloulin Fld, US	monthly rain	48.3 mm (1.9 in)	15.3 mm (0.6 in)	72 years	65 of 100 (Major)
20 April 1967	Lovell, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	68 years	63 of 100 (Major)
20 April 1967	Medicine Lake 3 SE, US	monthly snow depth	25.4 cm (10.0 in)	10.2 cm (4.0 in)	56 years	62 of 100 (Major)
20 April 1967	Medicine Lake 3 SE, US	daily snowfall	25.4 cm (10.0 in)	25.4 cm (10.0 in)	56 years	61 of 100 (Major)
20 April 1967	Warroad, US	daily rain	35.6 mm (1.4 in)	28.2 mm (1.1 in)	36 years	56 of 100 (Notable)
20 April 1967	Chinook, US	daily rain	29.0 mm (1.1 in)	19.3 mm (0.8 in)	46 years	56 of 100 (Notable)
20 April 1967	Sao Jose Do Egito, BR	daily rain	94.4 mm (3.7 in)	63.6 mm (2.5 in)	48 years	55 of 100 (Notable)
20 April 1967	Virden, CA	daily snowfall	20.3 cm (8.0 in)	17.8 cm (7.0 in)	46 years	55 of 100 (Notable)
20 April 1967	Brady Aznoe, US	daily snow depth	22.9 cm (9.0 in)	22.9 cm (9.0 in)	54 years	55 of 100 (Notable)
20 April 1967	Morris, CA	daily rain	33.0 mm (1.3 in)	16.5 mm (0.6 in)	76 years	54 of 100 (Notable)
20 April 1967	Crosby, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	57 years	54 of 100 (Notable)
20 April 1967	Hannah 2 N, US	daily rain	44.5 mm (1.8 in)	29.8 mm (1.2 in)	29 years	54 of 100 (Notable)
20 April 1967	Savage, US	monthly rain	47.0 mm (1.9 in)	15.5 mm (0.6 in)	26 years	53 of 100 (Notable)
20 April 1967	Larimore 4SW, US	daily rain	33.3 mm (1.3 in)	19.3 mm (0.8 in)	71 years	53 of 100 (Notable)
20 April 1967	Yellow Grass, CA	monthly snowfall	22.9 cm (9.0 in)	7.7 cm (3.0 in)	52 years	51 of 100 (Notable)
20 April 1967	Cardston, CA	daily snowfall	20.3 cm (8.0 in)	15.2 cm (6.0 in)	16 years	49 of 100 (Notable)
20 April 1967	Dunkirk 19NNE, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	53 years	48 of 100 (Notable)
20 April 1967	Joplin, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	34 years	48 of 100 (Notable)
20 April 1967	Vida 6 NE, US	daily snowfall	25.4 cm (10.0 in)	22.9 cm (9.0 in)	25 years	48 of 100 (Notable)
20 April 1967	Anucino, RU	daily rain	27.0 mm (1.1 in)	20.3 mm (0.8 in)	13 years	47 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

1807 to 1967

Records set or tied on this calendar date in each year from 1807 to 1967. 1967 had 864 records.

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

Records on 04-20 in each year
Year	Records
1807	3
1817	1
1838	1
1849	2
1851	1
1852	4
1854	1
1858	1
1860	1
1864	1
1865	3
1868	1
1869	1
1870	1
1872	1
1874	3
1875	4
1876	1
1878	2
1880	2
1881	2
1884	1
1885	1
1886	2
1889	1
1891	2
1892	1
1893	6
1894	8
1895	7
1896	3
1897	6
1898	1
1899	1
1901	8
1902	3
1903	14
1904	31
1905	9
1906	12
1907	18
1908	14
1909	22
1910	25
1911	18
1912	12
1913	19
1914	46
1915	45
1916	19
1917	33
1918	42
1919	17
1920	49
1921	27
1922	40
1923	157
1924	113
1925	169
1926	310
1927	442
1928	212
1929	182
1930	87
1931	255
1932	166
1933	279
1934	384
1935	384
1936	311
1937	427
1938	339
1939	158
1940	519
1941	558
1942	223
1943	670
1944	304
1945	391
1946	395
1947	308
1948	493
1949	477
1950	329
1951	690
1952	552
1953	1,071
1954	377
1955	623
1956	384
1957	730
1958	327
1959	563
1960	472
1961	1,078
1962	487
1963	595
1964	749
1965	724
1966	1,174
1967	864
1968	975
1969	382
1970	948
1971	765
1972	531
1973	982
1974	673
1975	344
1976	661
1977	693
1978	800
1979	495
1980	1,539
1981	706
1982	906
1983	1,844
1984	922
1985	1,140
1986	770
1987	1,447
1988	1,144
1989	1,187
1990	1,495
1991	1,075
1992	1,009
1993	772
1994	756
1995	1,351
1996	970
1997	833
1998	1,490
1999	674
2000	931
2001	752
2002	1,081
2003	758
2004	567
2005	707
2006	859
2007	582
2008	1,110
2009	845
2010	693
2011	1,477
2012	726
2013	1,520
2014	384
2015	702
2016	650
2017	734
2018	1,309
2019	1,019
2020	449
2021	1,215
2022	596
2023	828
2024	673
2025	836
2026	533

Download the Data

Data for records on 1967-04-20: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 100	673
100 to 200	21
200 to 300	5
300 to 400	2
400 to 500	0
500 to 600	1