Weather Records on 11 December 1970

617 weather records were set or tied worldwide on 11 December 1970. Highest significance: West Bend, US.

Key Facts for 11 December 1970

On 11 December 1970, 617 weather records were set or tied at long-record stations worldwide.
122 were record highs and 19 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 36 monthly and 574 daily.
West Bend set an all-time record daily snowfall of 38.1 cm (15.0 in) on 11 December 1970.
Across 154 earlier years (1796 to 2025) the same calendar date averaged 472 records.

Record Map

617 stations

617 station records on 11 December 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 December 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
West Bend	United States	Record daily snowfall	38.1 cm (15.0 in)	68 of 100 (Major)
Mather 3 NW	United States	Record daily snowfall	23.4 cm (9.2 in)	63 of 100 (Major)
Rock Rapids	United States	Record daily snowfall	22.9 cm (9.0 in)	62 of 100 (Major)
Watertown Wwtp	United States	Record daily precipitation	42.2 mm (1.7 in)	59 of 100 (Notable)
Keosauqua	United States	Record daily precipitation	41.9 mm (1.6 in)	57 of 100 (Notable)
Yale 1 NNW	United States	Record daily snowfall	31.8 cm (12.5 in)	56 of 100 (Notable)
Fayette	United States	Record daily snowfall	15.2 cm (6.0 in)	55 of 100 (Notable)
Prairie du Chien	United States	Record daily snowfall	25.4 cm (10.0 in)	53 of 100 (Notable)
Watertown Wwtp	United States	Record daily snowfall	34.3 cm (13.5 in)	52 of 100 (Notable)
Kellevie	Australia	Record daily precipitation	128.0 mm (5.0 in)	51 of 100 (Notable)
Dumont	United States	Record daily snowfall	20.3 cm (8.0 in)	51 of 100 (Notable)
Wapello	United States	Record daily precipitation	43.7 mm (1.7 in)	51 of 100 (Notable)
Blair	United States	Record daily snowfall	22.9 cm (9.0 in)	51 of 100 (Notable)
Chilton	United States	Record daily snowfall	25.4 cm (10.0 in)	51 of 100 (Notable)
Balliang East (Chesney)	Australia	Record daily precipitation	56.6 mm (2.2 in)	50 of 100 (Notable)
Keithsburg	United States	Record daily precipitation	41.1 mm (1.6 in)	50 of 100 (Notable)
Newaygo Hardy Dam	United States	Record daily snowfall	27.9 cm (11.0 in)	50 of 100 (Notable)
Johanna Glen	Australia	Record daily precipitation	46.0 mm (1.8 in)	49 of 100 (Notable)
Buckland (Brockley)	Australia	Record daily precipitation	97.3 mm (3.8 in)	49 of 100 (Notable)
Cranbrook (Cranbrook House)	Australia	Record daily precipitation	95.5 mm (3.8 in)	49 of 100 (Notable)
Whitemark	Australia	Record daily precipitation	50.3 mm (2.0 in)	49 of 100 (Notable)
Algona	United States	Record daily snowfall	20.3 cm (8.0 in)	49 of 100 (Notable)
Bloomfield	United States	Record daily precipitation	50.8 mm (2.0 in)	49 of 100 (Notable)
Lansing	United States	Record daily snowfall	30.5 cm (12.0 in)	49 of 100 (Notable)
Grand Meadow	United States	Record daily snowfall	22.9 cm (9.0 in)	49 of 100 (Notable)
Flandreau	United States	Record daily snowfall	12.7 cm (5.0 in)	49 of 100 (Notable)
Parkes (Macarthur Street)	Australia	Record daily precipitation	39.6 mm (1.6 in)	48 of 100 (Notable)
St Marys (Clive Street)	Australia	Record daily precipitation	116.6 mm (4.6 in)	48 of 100 (Notable)
Gladstone L/D 18	United States	Record daily precipitation	40.4 mm (1.6 in)	48 of 100 (Notable)
Muscatine 2	United States	Record daily precipitation	35.1 mm (1.4 in)	48 of 100 (Notable)
St Peter	United States	Record daily snowfall	22.9 cm (9.0 in)	48 of 100 (Notable)
Brillion	United States	Record daily snowfall	17.3 cm (6.8 in)	48 of 100 (Notable)
Quorn (Olive Grove)	Australia	Record daily precipitation	45.2 mm (1.8 in)	47 of 100 (Notable)
German Town	Australia	Record daily precipitation	162.6 mm (6.4 in)	47 of 100 (Notable)
Orford South	Australia	Record daily precipitation	94.7 mm (3.7 in)	47 of 100 (Notable)
Northwood	United States	Record daily snowfall	27.9 cm (11.0 in)	47 of 100 (Notable)
Harrison 1 NNW	United States	Record daily precipitation	26.2 mm (1.0 in)	47 of 100 (Notable)
Stoughton Wwtp	United States	Record daily snowfall	29.5 cm (11.6 in)	47 of 100 (Notable)
Agnes River	Australia	Record daily precipitation	37.1 mm (1.5 in)	46 of 100 (Notable)
Upper Scamander	Australia	Record daily precipitation	128.0 mm (5.0 in)	46 of 100 (Notable)
Pella 1S	United States	Record daily precipitation	25.9 mm (1.0 in)	46 of 100 (Notable)
Maryville 2E	United States	Record daily precipitation	37.8 mm (1.5 in)	46 of 100 (Notable)
Mathinna (Fingal Road)	Australia	Record daily precipitation	75.4 mm (3.0 in)	45 of 100 (Notable)
Lockport 2SE	United States	Record daily snowfall	20.3 cm (8.0 in)	45 of 100 (Notable)
Portage Wwtp	United States	Record daily snowfall	25.4 cm (10.0 in)	45 of 100 (Notable)
Estherville 4E	United States	Record daily snowfall	14.0 cm (5.5 in)	44 of 100 (Notable)
Ft Madison	United States	Record daily precipitation	34.3 mm (1.4 in)	44 of 100 (Notable)
Caro Wwtp	United States	Record daily snowfall	21.6 cm (8.5 in)	44 of 100 (Notable)
Aledo	United States	Record daily precipitation	27.9 mm (1.1 in)	43 of 100 (Notable)
Prairie du Chien	United States	Record daily precipitation	31.2 mm (1.2 in)	43 of 100 (Notable)
New Boston Dam 17	United States	Record daily precipitation	37.3 mm (1.5 in)	42 of 100 (Notable)
Mt Clemens Ang Base	United States	Record daily snowfall	19.8 cm (7.8 in)	42 of 100 (Notable)
Currie Post Office	Australia	Record daily precipitation	30.2 mm (1.2 in)	41 of 100 (Notable)
Thule	Australia	Record daily precipitation	46.2 mm (1.8 in)	41 of 100 (Notable)
Toledo 3N	United States	Record daily precipitation	28.4 mm (1.1 in)	41 of 100 (Notable)
Alma	United States	Record daily snowfall	19.1 cm (7.5 in)	41 of 100 (Notable)
Lowell	United States	Record daily snowfall	39.6 cm (15.6 in)	41 of 100 (Notable)
Augusta	United States	Record daily precipitation	38.6 mm (1.5 in)	40 of 100 (Notable)
Winnebago	United States	Record daily snowfall	20.3 cm (8.0 in)	40 of 100 (Notable)
Sparta	United States	Record daily snowfall	20.3 cm (8.0 in)	40 of 100 (Notable)

Counts by Type and Timescale

617 records

Records set or tied on 11 December 1970 by type: Highest daily maximum 82, Lowest daily maximum 6, Highest daily minimum 40, Lowest daily minimum 13, Heaviest daily rainfall 326, Heaviest daily snowfall 121, Deepest snow cover 29.

Records on 11 December 1970 by type
Record type	Records
Highest daily maximum	82
Lowest daily maximum	6
Highest daily minimum	40
Lowest daily minimum	13
Heaviest daily rainfall	326
Heaviest daily snowfall	121
Deepest snow cover	29

Records on 11 December 1970 by timescale: all-time 7, monthly 36, daily 574.

How Much Records Were Beaten By

536 broken records

Margins by which the 536 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

11 December 1970

Top 20 records on 11 December 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 December 1970	West Bend, US	all-time snowfall	38.1 cm (15.0 in)	7.6 cm (3.0 in)	74 years	68 of 100 (Major)
11 December 1970	Mather 3 NW, US	daily snowfall	23.4 cm (9.2 in)	20.1 cm (7.9 in)	65 years	63 of 100 (Major)
11 December 1970	Rock Rapids, US	daily snowfall	22.9 cm (9.0 in)	17.8 cm (7.0 in)	65 years	62 of 100 (Major)
11 December 1970	Watertown Wwtp, US	daily rain	42.2 mm (1.7 in)	17.6 mm (0.7 in)	70 years	59 of 100 (Notable)
11 December 1970	Keosauqua, US	daily rain	41.9 mm (1.6 in)	22.8 mm (0.9 in)	70 years	57 of 100 (Notable)
11 December 1970	Yale 1 NNW, US	monthly snowfall	31.8 cm (12.5 in)	11.5 cm (4.5 in)	40 years	56 of 100 (Notable)
11 December 1970	Fayette, US	daily snowfall	15.2 cm (6.0 in)	11.4 cm (4.5 in)	76 years	55 of 100 (Notable)
11 December 1970	Prairie du Chien, US	daily snowfall	25.4 cm (10.0 in)	12.7 cm (5.0 in)	65 years	53 of 100 (Notable)
11 December 1970	Watertown Wwtp, US	monthly snowfall	34.3 cm (13.5 in)	10.9 cm (4.3 in)	20 years	52 of 100 (Notable)
11 December 1970	Kellevie, AU	daily rain	128.0 mm (5.0 in)	65.8 mm (2.6 in)	12 years	51 of 100 (Notable)
11 December 1970	Dumont, US	daily snowfall	20.3 cm (8.0 in)	17.8 cm (7.0 in)	28 years	51 of 100 (Notable)
11 December 1970	Wapello, US	daily rain	43.7 mm (1.7 in)	17.8 mm (0.7 in)	70 years	51 of 100 (Notable)
11 December 1970	Blair, US	daily snowfall	22.9 cm (9.0 in)	20.4 cm (8.0 in)	37 years	51 of 100 (Notable)
11 December 1970	Chilton, US	daily snowfall	25.4 cm (10.0 in)	14.0 cm (5.5 in)	67 years	51 of 100 (Notable)
11 December 1970	Balliang East (Chesney), AU	daily rain	56.6 mm (2.2 in)	40.3 mm (1.6 in)	17 years	50 of 100 (Notable)
11 December 1970	Keithsburg, US	daily rain	41.1 mm (1.6 in)	34.0 mm (1.3 in)	11 years	50 of 100 (Notable)
11 December 1970	Newaygo Hardy Dam, US	all-time snowfall	27.9 cm (11.0 in)	2.5 cm (1.0 in)	56 years	50 of 100 (Notable)
11 December 1970	Johanna Glen, AU	daily rain	46.0 mm (1.8 in)	29.7 mm (1.2 in)	8 years	49 of 100 (Notable)
11 December 1970	Buckland (Brockley), AU	daily rain	97.3 mm (3.8 in)	69.6 mm (2.7 in)	12 years	49 of 100 (Notable)
11 December 1970	Cranbrook (Cranbrook House), AU	daily rain	95.5 mm (3.8 in)	59.7 mm (2.4 in)	12 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

1796 to 1970

Records set or tied on this calendar date in each year from 1796 to 1970. 1970 had 617 records.

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

Records on 12-11 in each year
Year	Records
1796	2
1808	2
1815	2
1825	2
1841	1
1852	1
1855	2
1862	1
1868	1
1869	3
1871	4
1872	1
1876	2
1877	1
1878	2
1879	4
1880	2
1882	3
1886	1
1887	1
1889	1
1891	3
1892	2
1893	3
1894	1
1895	4
1897	2
1898	14
1899	5
1900	4
1901	5
1902	6
1903	2
1904	28
1905	15
1906	12
1907	30
1908	18
1909	7
1910	31
1911	49
1912	36
1913	8
1914	13
1915	93
1916	55
1917	103
1918	32
1919	40
1920	58
1921	49
1922	143
1923	88
1924	84
1925	81
1926	77
1927	232
1928	111
1929	345
1930	72
1931	762
1932	696
1933	260
1934	480
1935	290
1936	357
1937	839
1938	231
1939	626
1940	302
1941	353
1942	263
1943	196
1944	407
1945	234
1946	717
1947	342
1948	153
1949	1,201
1950	463
1951	261
1952	923
1953	157
1954	492
1955	312
1956	300
1957	517
1958	985
1959	322
1960	746
1961	1,300
1962	723
1963	604
1964	542
1965	1,216
1966	525
1967	945
1968	543
1969	587
1970	617
1971	900
1972	1,514
1973	334
1974	313
1975	454
1976	380
1977	1,182
1978	678
1979	847
1980	522
1981	949
1982	657
1983	971
1984	1,013
1985	1,471
1986	561
1987	639
1988	850
1989	584
1990	747
1991	1,102
1992	1,357
1993	749
1994	1,243
1995	1,837
1996	1,307
1997	1,203
1998	1,012
1999	769
2000	1,584
2001	626
2002	1,139
2003	646
2004	1,166
2005	816
2006	858
2007	1,613
2008	1,312
2009	1,091
2010	1,284
2011	416
2012	618
2013	737
2014	893
2015	1,183
2016	489
2017	670
2018	353
2019	442
2020	517
2021	1,175
2022	679
2023	814
2024	539
2025	1,691

Download the Data

Data for records on 1970-12-11: 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 50	462
50 to 100	43
100 to 150	23
150 to 200	5
200 to 250	3