Weather Records on 10 April 1973

2,070 weather records were set or tied worldwide on 10 April 1973. Highest significance: Unionville, US.

Key Facts for 10 April 1973

On 10 April 1973, 2,070 weather records were set or tied at long-record stations worldwide.
87 were record highs and 1,079 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 119 monthly and 1,950 daily.
Unionville set a daily record snowfall of 38.1 cm (15.0 in) on 10 April 1973.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 456 records.

Record Map

2,000 stations, highest significance shown

2,000 station records on 10 April 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 April 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Unionville	United States	Record daily snowfall	38.1 cm (15.0 in)	71 of 100 (Major)
Rothenburg Ob der Tauber	Germany	Record daily precipitation	40.9 mm (1.6 in)	70 of 100 (Major)
Majors Creek (the Old School)	Australia	Record daily precipitation	77.5 mm (3.1 in)	69 of 100 (Major)
Albia 3 NNE	United States	Record daily snowfall	20.3 cm (8.0 in)	69 of 100 (Major)
Pella 1S	United States	Record daily snowfall	25.4 cm (10.0 in)	69 of 100 (Major)
Lansing	United States	Record daily snowfall	15.2 cm (6.0 in)	68 of 100 (Major)
Sigourney	United States	Record daily snowfall	19.1 cm (7.5 in)	68 of 100 (Major)
New Hampton	United States	Record snow depth	38.1 cm (15.0 in)	67 of 100 (Major)
Delaware 3 WSW	United States	Record daily snowfall	16.5 cm (6.5 in)	64 of 100 (Major)
Marshalltown	United States	Record snow depth	33.0 cm (13.0 in)	64 of 100 (Major)
Independence #1	United States	Record daily precipitation	34.3 mm (1.4 in)	63 of 100 (Major)
New Hampton	United States	Record daily snowfall	15.2 cm (6.0 in)	63 of 100 (Major)
Ludington 4 SE	United States	Record snow depth	12.7 cm (5.0 in)	63 of 100 (Major)
Brodhead Wwtp	United States	Record daily snowfall	22.9 cm (9.0 in)	63 of 100 (Major)
Lancaster 4 WSW	United States	Record daily snowfall	20.3 cm (8.0 in)	63 of 100 (Major)
Cresco 1 NE	United States	Record daily snowfall	12.7 cm (5.0 in)	62 of 100 (Major)
West Bend	United States	Record snow depth	27.9 cm (11.0 in)	62 of 100 (Major)
Muskegon Co AP	United States	Record snow depth	15.2 cm (6.0 in)	62 of 100 (Major)
Kaisersbach-Cronhutte	Germany	Record daily precipitation	32.5 mm (1.3 in)	61 of 100 (Major)
Freeport	United States	Record snow depth	17.8 cm (7.0 in)	61 of 100 (Major)
Tipton	United States	Record daily snowfall	17.8 cm (7.0 in)	61 of 100 (Major)
Williamsburg 1E	United States	Record daily snowfall	15.2 cm (6.0 in)	61 of 100 (Major)
Alma	United States	Record daily snowfall	17.8 cm (7.0 in)	61 of 100 (Major)
Osceola	United States	Record daily snowfall	15.2 cm (6.0 in)	60 of 100 (Major)
Fortaleza (Escola Regional)	Brazil	Record daily precipitation	133.5 mm (5.3 in)	58 of 100 (Notable)
Dodgeville Wwtp	United States	Record daily snowfall	17.8 cm (7.0 in)	57 of 100 (Notable)
Shawinigan	Canada	Record daily snowfall	27.9 cm (11.0 in)	56 of 100 (Notable)
Rockwell City	United States	Record daily snowfall	11.4 cm (4.5 in)	56 of 100 (Notable)
New London	United States	Record daily snowfall	20.3 cm (8.0 in)	56 of 100 (Notable)
Dawson	Canada	Record daily snowfall	11.2 cm (4.4 in)	55 of 100 (Notable)
Chicoutimi	Canada	Record daily snowfall	18.8 cm (7.4 in)	55 of 100 (Notable)
Gollhofen	Germany	Record daily precipitation	45.0 mm (1.8 in)	55 of 100 (Notable)
Guthrie Ctr	United States	Record daily snowfall	12.7 cm (5.0 in)	55 of 100 (Notable)
Iowa City	United States	Record snow depth	10.2 cm (4.0 in)	55 of 100 (Notable)
E Tawas	United States	Record daily snowfall	12.7 cm (5.0 in)	55 of 100 (Notable)
Scottville 1 NE	United States	Record daily snowfall	11.4 cm (4.5 in)	55 of 100 (Notable)
Marvel Loch	Australia	Record daily precipitation	38.6 mm (1.5 in)	54 of 100 (Notable)
Milan	United States	Record daily snowfall	17.8 cm (7.0 in)	54 of 100 (Notable)
Red Rvr	United States	Record snow depth	116.8 cm (46.0 in)	54 of 100 (Notable)
Bloomfield	Canada	Record daily snowfall	10.2 cm (4.0 in)	53 of 100 (Notable)
Cedar Rapids #1	United States	Record daily snowfall	7.6 cm (3.0 in)	53 of 100 (Notable)
Van Wert 1 S	United States	Record daily snowfall	10.2 cm (4.0 in)	53 of 100 (Notable)
Portage Wwtp	United States	Record daily snowfall	10.2 cm (4.0 in)	53 of 100 (Notable)
Watertown Wwtp	United States	Record daily snowfall	17.8 cm (7.0 in)	53 of 100 (Notable)
Bonnie Rock	Australia	Record daily precipitation	36.1 mm (1.4 in)	52 of 100 (Notable)
Usina Rio Dos Campos	Brazil	Record daily precipitation	165.4 mm (6.5 in)	52 of 100 (Notable)
Fayette	United States	Record daily snowfall	12.7 cm (5.0 in)	52 of 100 (Notable)
Vanderbilt 11ENE	United States	Record daily snowfall	27.9 cm (11.0 in)	52 of 100 (Notable)
Chamingup	Australia	Record daily precipitation	49.5 mm (1.9 in)	51 of 100 (Notable)
Bell Falls	Canada	Record daily snowfall	14.2 cm (5.6 in)	51 of 100 (Notable)
Boone	United States	Record daily snowfall	8.9 cm (3.5 in)	51 of 100 (Notable)
Rockwell City	United States	Record snow depth	20.3 cm (8.0 in)	51 of 100 (Notable)
Toledo 3N	United States	Record daily snowfall	10.2 cm (4.0 in)	51 of 100 (Notable)
Vinton	United States	Record daily snowfall	10.2 cm (4.0 in)	51 of 100 (Notable)
Holland Wtp	United States	Record snow depth	15.2 cm (6.0 in)	51 of 100 (Notable)
Shelbyville	United States	Record daily snowfall	17.8 cm (7.0 in)	51 of 100 (Notable)
Iguape	Brazil	Record daily precipitation	125.0 mm (4.9 in)	50 of 100 (Notable)
Ellwangen-Rindelbach	Germany	Record daily precipitation	27.4 mm (1.1 in)	50 of 100 (Notable)
Heidenheim/Brenz	Germany	Record daily precipitation	27.4 mm (1.1 in)	50 of 100 (Notable)
Rems-Murr-Kreis Winterbach	Germany	Record daily precipitation	29.2 mm (1.1 in)	50 of 100 (Notable)

Counts by Type and Timescale

2,070 records

Records set or tied on 10 April 1973 by type: Highest daily maximum 39, Lowest daily maximum 557, Highest daily minimum 48, Lowest daily minimum 522, Heaviest daily rainfall 414, Heaviest daily snowfall 370, Deepest snow cover 120.

Records on 10 April 1973 by type
Record type	Records
Highest daily maximum	39
Lowest daily maximum	557
Highest daily minimum	48
Lowest daily minimum	522
Heaviest daily rainfall	414
Heaviest daily snowfall	370
Deepest snow cover	120

Records on 10 April 1973 by timescale: all-time 1, monthly 119, daily 1,950.

How Much Records Were Beaten By

1,783 broken records

Margins by which the 1,783 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 762.0. Ties are not counted.

Top 20 by Significance

10 April 1973

Top 20 records on 10 April 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 April 1973	Unionville, US	daily snowfall	38.1 cm (15.0 in)	38.1 cm (15.0 in)	79 years	71 of 100 (Major)
10 April 1973	Rothenburg Ob der Tauber, DE	daily rain	40.9 mm (1.6 in)	27.5 mm (1.1 in)	73 years	70 of 100 (Major)
10 April 1973	Majors Creek (the Old School), AU	daily rain	77.5 mm (3.1 in)	56.9 mm (2.2 in)	73 years	69 of 100 (Major)
10 April 1973	Albia 3 NNE, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	72 years	69 of 100 (Major)
10 April 1973	Pella 1S, US	daily snowfall	25.4 cm (10.0 in)	25.4 cm (10.0 in)	73 years	69 of 100 (Major)
10 April 1973	Lansing, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	72 years	68 of 100 (Major)
10 April 1973	Sigourney, US	daily snowfall	19.1 cm (7.5 in)	19.1 cm (7.5 in)	72 years	68 of 100 (Major)
10 April 1973	New Hampton, US	daily snow depth	38.1 cm (15.0 in)	38.1 cm (15.0 in)	75 years	67 of 100 (Major)
10 April 1973	Delaware 3 WSW, US	daily snowfall	16.5 cm (6.5 in)	16.5 cm (6.5 in)	79 years	64 of 100 (Major)
10 April 1973	Marshalltown, US	daily snow depth	33.0 cm (13.0 in)	33.0 cm (13.0 in)	79 years	64 of 100 (Major)
10 April 1973	Independence #1, US	daily rain	34.3 mm (1.4 in)	28.2 mm (1.1 in)	81 years	63 of 100 (Major)
10 April 1973	New Hampton, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	75 years	63 of 100 (Major)
10 April 1973	Ludington 4 SE, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	74 years	63 of 100 (Major)
10 April 1973	Brodhead Wwtp, US	daily snowfall	22.9 cm (9.0 in)	22.9 cm (9.0 in)	72 years	63 of 100 (Major)
10 April 1973	Lancaster 4 WSW, US	daily snowfall	20.3 cm (8.0 in)	19.0 cm (7.5 in)	59 years	63 of 100 (Major)
10 April 1973	Cresco 1 NE, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	79 years	62 of 100 (Major)
10 April 1973	West Bend, US	daily snow depth	27.9 cm (11.0 in)	27.9 cm (11.0 in)	50 years	62 of 100 (Major)
10 April 1973	Muskegon Co AP, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	73 years	62 of 100 (Major)
10 April 1973	Kaisersbach-Cronhutte, DE	daily rain	32.5 mm (1.3 in)	18.4 mm (0.7 in)	76 years	61 of 100 (Major)
10 April 1973	Freeport, US	daily snow depth	17.8 cm (7.0 in)	17.8 cm (7.0 in)	64 years	61 of 100 (Major)

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 1973

Records set or tied on this calendar date in each year from 1793 to 1973. 1973 had 2,070 records.

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

Records on 04-10 in each year
Year	Records
1793	1
1798	1
1805	1
1809	2
1812	3
1842	2
1844	1
1846	1
1847	1
1854	1
1863	2
1864	2
1865	2
1869	1
1872	1
1873	2
1875	2
1876	3
1877	2
1878	2
1879	1
1880	2
1882	1
1885	1
1886	1
1887	6
1888	1
1889	1
1890	4
1891	1
1892	4
1893	3
1894	5
1895	5
1896	4
1897	3
1898	6
1899	4
1900	8
1901	4
1902	4
1903	10
1904	12
1905	21
1906	24
1907	13
1908	8
1909	37
1910	15
1911	17
1912	55
1913	27
1914	25
1915	61
1916	94
1917	64
1918	43
1919	39
1920	66
1921	44
1922	178
1923	71
1924	119
1925	143
1926	86
1927	205
1928	245
1929	290
1930	646
1931	107
1932	290
1933	392
1934	237
1935	253
1936	186
1937	254
1938	401
1939	363
1940	252
1941	402
1942	548
1943	577
1944	718
1945	1,031
1946	287
1947	355
1948	335
1949	294
1950	599
1951	394
1952	793
1953	601
1954	243
1955	650
1956	377
1957	411
1958	326
1959	527
1960	683
1961	734
1962	258
1963	446
1964	239
1965	770
1966	537
1967	549
1968	498
1969	545
1970	521
1971	569
1972	639
1973	2,070
1974	935
1975	850
1976	431
1977	1,430
1978	1,233
1979	875
1980	654
1981	701
1982	1,138
1983	1,170
1984	548
1985	1,391
1986	562
1987	403
1988	764
1989	1,835
1990	1,135
1991	1,101
1992	929
1993	583
1994	844
1995	1,811
1996	1,475
1997	2,935
1998	899
1999	1,738
2000	651
2001	1,792
2002	589
2003	1,431
2004	548
2005	886
2006	650
2007	848
2008	1,141
2009	1,031
2010	574
2011	1,880
2012	846
2013	1,703
2014	615
2015	667
2016	921
2017	846
2018	861
2019	636
2020	712
2021	749
2022	783
2023	835
2024	713
2025	796
2026	840

Download the Data

Data for records on 1973-04-10: 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	1,662
100 to 200	99
200 to 300	18
300 to 400	3
400 to 500	0
500 to 600	0
600 to 700	0
700 to 800	1