Weather Records on 20 April 1970

948 weather records were set or tied worldwide on 20 April 1970. Highest significance: Schierke, DE.

Key Facts for 20 April 1970

On 20 April 1970, 948 weather records were set or tied at long-record stations worldwide.
61 were record highs and 272 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 21 monthly and 925 daily.
Schierke set a daily record snow depth of 75.0 cm (29.5 in) on 20 April 1970.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 459 records.

Record Map

948 stations

948 station records on 20 April 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Schierke	Germany	Record snow depth	75.0 cm (29.5 in)	67 of 100 (Major)
Hinckley	United States	Record daily snowfall	15.2 cm (6.0 in)	63 of 100 (Major)
Sidney	United States	Record snow depth	15.2 cm (6.0 in)	63 of 100 (Major)
Hettinger	United States	Record snow depth	17.8 cm (7.0 in)	62 of 100 (Major)
Grassmere	Australia	Record daily precipitation	50.3 mm (2.0 in)	58 of 100 (Notable)
Mandan Exp STN	United States	Record snow depth	17.8 cm (7.0 in)	53 of 100 (Notable)
Danbury	United States	Record daily precipitation	48.0 mm (1.9 in)	53 of 100 (Notable)
Bowman	United States	Record snow depth	22.9 cm (9.0 in)	52 of 100 (Notable)
Stanley Wwtp	United States	Record daily snowfall	12.7 cm (5.0 in)	52 of 100 (Notable)
Glen Warren	Australia	Record daily precipitation	47.2 mm (1.9 in)	51 of 100 (Notable)
Tower 2S	United States	Record daily snowfall	12.7 cm (5.0 in)	51 of 100 (Notable)
Morgan	United States	Record daily snowfall	15.2 cm (6.0 in)	50 of 100 (Notable)
Jarrahdale	Australia	Record daily precipitation	61.7 mm (2.4 in)	49 of 100 (Notable)
Vladikavkaz	Russia	Record daily precipitation	34.0 mm (1.3 in)	48 of 100 (Notable)
Canning River Weir	Australia	Record daily precipitation	56.9 mm (2.2 in)	46 of 100 (Notable)
Kewaunee	United States	Record daily precipitation	43.2 mm (1.7 in)	46 of 100 (Notable)
Hayward Rs	United States	Record daily snowfall	10.2 cm (4.0 in)	45 of 100 (Notable)
Nazareth House Farm	South Africa	Record daily precipitation	53.0 mm (2.1 in)	44 of 100 (Notable)
Pineview Dam	United States	Record daily snowfall	14.0 cm (5.5 in)	44 of 100 (Notable)
Solon Springs	United States	Record daily snowfall	10.2 cm (4.0 in)	43 of 100 (Notable)
Moyhu	Australia	Record daily precipitation	47.0 mm (1.9 in)	42 of 100 (Notable)
Fichtelberg	Germany	Record snow depth	250.0 cm (98.4 in)	42 of 100 (Notable)
Brocken	Germany	Record snow depth	320.0 cm (126.0 in)	42 of 100 (Notable)
Mundaring Weir	Australia	Record daily precipitation	47.5 mm (1.9 in)	41 of 100 (Notable)
Baudette	United States	Record snow depth	20.3 cm (8.0 in)	41 of 100 (Notable)
Petawawa Nat Forestry	Canada	Record daily snowfall	10.9 cm (4.3 in)	40 of 100 (Notable)
Mayville	United States	Record daily snowfall	5.1 cm (2.0 in)	40 of 100 (Notable)
Dupree	United States	Record snow depth	30.5 cm (12.0 in)	40 of 100 (Notable)
Melbourne Regional Office	Australia	Record high minimum temperature	17.0 C (62.6 F)	39 of 100 (Notable)
Glenwood Spgs #2	United States	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Meadowlands 9 S	United States	Record daily snowfall	15.2 cm (6.0 in)	39 of 100 (Notable)
Willow City	United States	Record daily snowfall	12.7 cm (5.0 in)	39 of 100 (Notable)
Ashland Exp Farm	United States	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Eclipse Island	Australia	Record daily precipitation	61.0 mm (2.4 in)	38 of 100 (Notable)
Iron Mtn-Kingsford Wwtp	United States	Record daily precipitation	34.5 mm (1.4 in)	38 of 100 (Notable)
Shamakhy	Azerbaijan	Record daily precipitation	54.2 mm (2.1 in)	37 of 100 (Notable)
Atikokan Cli	Canada	Record daily snowfall	10.2 cm (4.0 in)	37 of 100 (Notable)
Steuben	United States	Record daily precipitation	40.6 mm (1.6 in)	37 of 100 (Notable)
Roseau	United States	Record daily snowfall	17.8 cm (7.0 in)	37 of 100 (Notable)
Weyerhaeuser 1N	United States	Record daily snowfall	7.6 cm (3.0 in)	37 of 100 (Notable)
Akron Washington Co AP	United States	Record daily snowfall	7.6 cm (3.0 in)	37 of 100 (Notable)
E Tawas	United States	Record daily precipitation	29.0 mm (1.1 in)	36 of 100 (Notable)
Edmore 4NW	United States	Record daily snowfall	5.1 cm (2.0 in)	36 of 100 (Notable)
Lead	United States	Record daily snowfall	19.1 cm (7.5 in)	36 of 100 (Notable)
Hillman	Australia	Record daily precipitation	26.7 mm (1.1 in)	35 of 100 (Notable)
Maranguape	Brazil	Record daily precipitation	103.1 mm (4.1 in)	35 of 100 (Notable)
Stillwater 1 SE	United States	Record daily precipitation	31.8 mm (1.3 in)	35 of 100 (Notable)
Thief River Falls	United States	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Goldfield	United States	Record daily snowfall	5.1 cm (2.0 in)	35 of 100 (Notable)
Winter	United States	Record daily snowfall	8.9 cm (3.5 in)	35 of 100 (Notable)
Skjak	Norway	Record snow depth	19.0 cm (7.5 in)	34 of 100 (Routine)
Ica	Russia	Record daily precipitation	27.5 mm (1.1 in)	34 of 100 (Routine)
Bladgrond	South Africa	Record daily precipitation	56.9 mm (2.2 in)	34 of 100 (Routine)
Saint Bernard	United States	Record daily precipitation	54.9 mm (2.2 in)	34 of 100 (Routine)
Crested Butte	United States	Record daily snowfall	15.2 cm (6.0 in)	34 of 100 (Routine)
Fulton 3 W	United States	Record daily precipitation	51.1 mm (2.0 in)	34 of 100 (Routine)
Ellendale	United States	Record low maximum temperature	1.1 C (34.0 F)	34 of 100 (Routine)
Flambeau Rsvr	United States	Record daily snowfall	12.7 cm (5.0 in)	34 of 100 (Routine)
Ladysmith 3W	United States	Record daily snowfall	7.6 cm (3.0 in)	34 of 100 (Routine)
Pine Bluffs	United States	Record daily snowfall	10.2 cm (4.0 in)	34 of 100 (Routine)

Counts by Type and Timescale

948 records

Records set or tied on 20 April 1970 by type: Highest daily maximum 24, Lowest daily maximum 188, Highest daily minimum 37, Lowest daily minimum 84, Heaviest daily rainfall 448, Heaviest daily snowfall 118, Deepest snow cover 49.

Records on 20 April 1970 by type
Record type	Records
Highest daily maximum	24
Lowest daily maximum	188
Highest daily minimum	37
Lowest daily minimum	84
Heaviest daily rainfall	448
Heaviest daily snowfall	118
Deepest snow cover	49

Records on 20 April 1970 by timescale: all-time 2, monthly 21, daily 925.

How Much Records Were Beaten By

839 broken records

Margins by which the 839 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 1750.0. Ties are not counted.

Top 20 by Significance

20 April 1970

Top 20 records on 20 April 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1970	Schierke, DE	daily snow depth	75.0 cm (29.5 in)	59.0 cm (23.2 in)	67 years	67 of 100 (Major)
20 April 1970	Hinckley, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	64 years	63 of 100 (Major)
20 April 1970	Sidney, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	59 years	63 of 100 (Major)
20 April 1970	Hettinger, US	daily snow depth	17.8 cm (7.0 in)	17.8 cm (7.0 in)	53 years	62 of 100 (Major)
20 April 1970	Grassmere, AU	daily rain	50.3 mm (2.0 in)	35.1 mm (1.4 in)	41 years	58 of 100 (Notable)
20 April 1970	Mandan Exp STN, US	daily snow depth	17.8 cm (7.0 in)	17.8 cm (7.0 in)	56 years	53 of 100 (Notable)
20 April 1970	Danbury, US	daily rain	48.0 mm (1.9 in)	32.3 mm (1.3 in)	32 years	53 of 100 (Notable)
20 April 1970	Bowman, US	daily snow depth	22.9 cm (9.0 in)	22.9 cm (9.0 in)	55 years	52 of 100 (Notable)
20 April 1970	Stanley Wwtp, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	65 years	52 of 100 (Notable)
20 April 1970	Glen Warren, AU	daily rain	47.2 mm (1.9 in)	23.6 mm (0.9 in)	44 years	51 of 100 (Notable)
20 April 1970	Tower 2S, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	73 years	51 of 100 (Notable)
20 April 1970	Morgan, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	64 years	50 of 100 (Notable)
20 April 1970	Jarrahdale, AU	daily rain	61.7 mm (2.4 in)	31.2 mm (1.2 in)	44 years	49 of 100 (Notable)
20 April 1970	Vladikavkaz, RU	daily rain	34.0 mm (1.3 in)	11.4 mm (0.4 in)	80 years	48 of 100 (Notable)
20 April 1970	Canning River Weir, AU	daily rain	56.9 mm (2.2 in)	29.7 mm (1.2 in)	44 years	46 of 100 (Notable)
20 April 1970	Kewaunee, US	daily rain	43.2 mm (1.7 in)	23.9 mm (0.9 in)	49 years	46 of 100 (Notable)
20 April 1970	Hayward Rs, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	76 years	45 of 100 (Notable)
20 April 1970	Nazareth House Farm, ZA	daily rain	53.0 mm (2.1 in)	33.9 mm (1.3 in)	28 years	44 of 100 (Notable)
20 April 1970	Pineview Dam, US	daily snowfall	14.0 cm (5.5 in)	14.0 cm (5.5 in)	35 years	44 of 100 (Notable)
20 April 1970	Solon Springs, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	63 years	43 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 1970

Records set or tied on this calendar date in each year from 1807 to 1970. 1970 had 948 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 1970-04-20: 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 250	833
250 to 500	3
500 to 750	1
750 to 1000	1
1000 to 1250	0
1250 to 1500	0
1500 to 1750	1