Weather Records on 27 April 1975

820 weather records were set or tied worldwide on 27 April 1975. Highest significance: Farmington 3NW, US.

Key Facts for 27 April 1975

On 27 April 1975, 820 weather records were set or tied at long-record stations worldwide.
388 were record highs and 151 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 54 monthly and 766 daily.
Farmington 3NW set a daily record precipitation of 57.2 mm (2.3 in) on 27 April 1975.
Across 158 earlier years (1795 to 2026) the same calendar date averaged 473 records.

Record Map

820 stations

820 station records on 27 April 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 April 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Farmington 3NW	United States	Record daily precipitation	57.2 mm (2.3 in)	68 of 100 (Major)
Amery	United States	Record daily precipitation	81.3 mm (3.2 in)	67 of 100 (Major)
Indian Head Cda	Canada	Record daily precipitation	35.8 mm (1.4 in)	63 of 100 (Major)
Bottineau	United States	Record daily precipitation	71.1 mm (2.8 in)	58 of 100 (Notable)
Ellsworth 1E	United States	Record daily precipitation	104.9 mm (4.1 in)	58 of 100 (Notable)
Hastings Dam 2	United States	Record daily precipitation	34.8 mm (1.4 in)	54 of 100 (Notable)
Bucuresti Filaret	Romania	Record daily precipitation	31.0 mm (1.2 in)	53 of 100 (Notable)
Chadron 3SW	United States	Record daily precipitation	36.6 mm (1.4 in)	51 of 100 (Notable)
Columbus 3 NE	United States	Record daily precipitation	51.8 mm (2.0 in)	51 of 100 (Notable)
Hansboro 4 NNE	United States	Record daily precipitation	26.4 mm (1.0 in)	51 of 100 (Notable)
Aurora Water	United States	Record daily precipitation	57.2 mm (2.3 in)	48 of 100 (Notable)
Minnedosa	Canada	Record daily precipitation	35.8 mm (1.4 in)	47 of 100 (Notable)
Clarkson	United States	Record daily precipitation	49.5 mm (1.9 in)	47 of 100 (Notable)
Blair	United States	Record daily precipitation	45.7 mm (1.8 in)	47 of 100 (Notable)
Akron Washington Co AP	United States	Record daily snowfall	11.2 cm (4.4 in)	47 of 100 (Notable)
Presque Isle	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
River Falls	United States	Record daily precipitation	57.4 mm (2.3 in)	46 of 100 (Notable)
Minneapolis-St Paul Intl AP	United States	Record daily precipitation	56.4 mm (2.2 in)	46 of 100 (Notable)
Ft Fairfield 5 NE	United States	Record daily snowfall	8.9 cm (3.5 in)	45 of 100 (Notable)
Liberal	United States	Record high minimum temperature	18.9 C (66.0 F)	44 of 100 (Notable)
Grenfell	Canada	Record daily precipitation	33.0 mm (1.3 in)	43 of 100 (Notable)
Springview 2NW	United States	Record high minimum temperature	17.2 C (63.0 F)	43 of 100 (Notable)
Kennebec	United States	Record high minimum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Virden	Canada	Record daily precipitation	33.3 mm (1.3 in)	41 of 100 (Notable)
Turnu Magurele	Romania	Record daily precipitation	29.4 mm (1.2 in)	41 of 100 (Notable)
Cambridge	United States	Record daily precipitation	95.5 mm (3.8 in)	41 of 100 (Notable)
Hettinger	United States	Record daily precipitation	48.3 mm (1.9 in)	41 of 100 (Notable)
Mondovi	United States	Record daily precipitation	69.1 mm (2.7 in)	41 of 100 (Notable)
Stillwater 1 SE	United States	Record daily precipitation	41.1 mm (1.6 in)	40 of 100 (Notable)
Piranhas	Brazil	Record daily precipitation	49.8 mm (2.0 in)	39 of 100 (Notable)
Brandon Cda	Canada	Record daily precipitation	34.5 mm (1.4 in)	39 of 100 (Notable)
Cap Madeleine	Canada	Record daily snowfall	22.9 cm (9.0 in)	39 of 100 (Notable)
Pierson	Canada	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Mt Carroll	United States	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Tribune 1W	United States	Record high minimum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
Culbertson	United States	Record high minimum temperature	16.1 C (61.0 F)	38 of 100 (Notable)
Rushville	United States	Record daily precipitation	48.0 mm (1.9 in)	38 of 100 (Notable)
Betanga	Australia	Record daily precipitation	47.0 mm (1.9 in)	37 of 100 (Notable)
Onawa 3NW	United States	Record daily precipitation	53.8 mm (2.1 in)	37 of 100 (Notable)
Stephan 2 NW	United States	Record high minimum temperature	14.4 C (57.9 F)	37 of 100 (Notable)
Barrage Lac Morin	Canada	Record daily snowfall	15.7 cm (6.2 in)	36 of 100 (Notable)
Pratt 3NW	United States	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Natoma	United States	Record daily precipitation	37.3 mm (1.5 in)	35 of 100 (Notable)
Faribault	United States	Record daily precipitation	27.2 mm (1.1 in)	35 of 100 (Notable)
Rochester Intl AP	United States	Record daily precipitation	33.8 mm (1.3 in)	35 of 100 (Notable)
Craig	United States	Record daily snowfall	10.2 cm (4.0 in)	34 of 100 (Routine)
Minneapolis	United States	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Yates Ctr	United States	Record high minimum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
Butte	United States	Record high minimum temperature	18.9 C (66.0 F)	34 of 100 (Routine)
Willow City	United States	Record daily precipitation	34.8 mm (1.4 in)	34 of 100 (Routine)
Midland	United States	Record high minimum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Stanley Wwtp	United States	Record daily precipitation	51.3 mm (2.0 in)	34 of 100 (Routine)
Isla Perez	Mexico	Record high minimum temperature	27.8 C (82.0 F)	33 of 100 (Routine)
Marengo	United States	Record daily precipitation	43.2 mm (1.7 in)	33 of 100 (Routine)
Healy	United States	Record high minimum temperature	15.6 C (60.1 F)	33 of 100 (Routine)
Winnebago	United States	Record daily precipitation	25.9 mm (1.0 in)	33 of 100 (Routine)
Appleton City	United States	Record high minimum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Lima	United States	Record snow depth	15.2 cm (6.0 in)	33 of 100 (Routine)
Broken Bow 2 W	United States	Record high minimum temperature	16.7 C (62.1 F)	33 of 100 (Routine)
Curtis	United States	Record high minimum temperature	15.0 C (59.0 F)	33 of 100 (Routine)

Counts by Type and Timescale

820 records

Records set or tied on 27 April 1975 by type: Highest daily maximum 65, Lowest daily maximum 89, Highest daily minimum 323, Lowest daily minimum 62, Heaviest daily rainfall 207, Heaviest daily snowfall 60, Deepest snow cover 14.

Records on 27 April 1975 by type
Record type	Records
Highest daily maximum	65
Lowest daily maximum	89
Highest daily minimum	323
Lowest daily minimum	62
Heaviest daily rainfall	207
Heaviest daily snowfall	60
Deepest snow cover	14

Records on 27 April 1975 by timescale: all-time 0, monthly 54, daily 766.

How Much Records Were Beaten By

601 broken records

Margins by which the 601 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

27 April 1975

Top 20 records on 27 April 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 April 1975	Farmington 3NW, US	daily rain	57.2 mm (2.3 in)	39.9 mm (1.6 in)	68 years	68 of 100 (Major)
27 April 1975	Amery, US	monthly rain	81.3 mm (3.2 in)	36.8 mm (1.4 in)	41 years	67 of 100 (Major)
27 April 1975	Indian Head Cda, CA	daily rain	35.8 mm (1.4 in)	16.7 mm (0.7 in)	76 years	63 of 100 (Major)
27 April 1975	Bottineau, US	monthly rain	71.1 mm (2.8 in)	34.3 mm (1.4 in)	0 years	58 of 100 (Notable)
27 April 1975	Ellsworth 1E, US	monthly rain	104.9 mm (4.1 in)	54.1 mm (2.1 in)	8 years	58 of 100 (Notable)
27 April 1975	Hastings Dam 2, US	daily rain	34.8 mm (1.4 in)	27.7 mm (1.1 in)	20 years	54 of 100 (Notable)
27 April 1975	Bucuresti Filaret, RO	daily rain	31.0 mm (1.2 in)	14.9 mm (0.6 in)	72 years	53 of 100 (Notable)
27 April 1975	Chadron 3SW, US	daily rain	36.6 mm (1.4 in)	23.1 mm (0.9 in)	56 years	51 of 100 (Notable)
27 April 1975	Columbus 3 NE, US	daily rain	51.8 mm (2.0 in)	25.1 mm (1.0 in)	57 years	51 of 100 (Notable)
27 April 1975	Hansboro 4 NNE, US	daily rain	26.4 mm (1.0 in)	17.3 mm (0.7 in)	66 years	51 of 100 (Notable)
27 April 1975	Aurora Water, US	daily rain	57.2 mm (2.3 in)	30.5 mm (1.2 in)	32 years	48 of 100 (Notable)
27 April 1975	Minnedosa, CA	daily rain	35.8 mm (1.4 in)	20.6 mm (0.8 in)	8 years	47 of 100 (Notable)
27 April 1975	Clarkson, US	daily rain	49.5 mm (1.9 in)	34.5 mm (1.4 in)	24 years	47 of 100 (Notable)
27 April 1975	Blair, US	daily rain	45.7 mm (1.8 in)	30.0 mm (1.2 in)	20 years	47 of 100 (Notable)
27 April 1975	Akron Washington Co AP, US	daily snowfall	11.2 cm (4.4 in)	11.2 cm (4.4 in)	37 years	47 of 100 (Notable)
27 April 1975	Presque Isle, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	64 years	46 of 100 (Notable)
27 April 1975	River Falls, US	daily rain	57.4 mm (2.3 in)	41.9 mm (1.6 in)	5 years	46 of 100 (Notable)
27 April 1975	Minneapolis-St Paul Intl AP, US	monthly rain	56.4 mm (2.2 in)	17.5 mm (0.7 in)	20 years	46 of 100 (Notable)
27 April 1975	Ft Fairfield 5 NE, US	daily snowfall	8.9 cm (3.5 in)	8.9 cm (3.5 in)	78 years	45 of 100 (Notable)
27 April 1975	Liberal, US	monthly high min	18.9 C (66.0 F)	1.1 C (2.0 F)	82 years	44 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

1795 to 1975

Records set or tied on this calendar date in each year from 1795 to 1975. 1975 had 820 records.

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

Records on 04-27 in each year
Year	Records
1795	1
1801	1
1802	2
1812	1
1814	1
1817	3
1828	1
1838	1
1841	1
1843	1
1852	1
1853	1
1855	1
1856	1
1857	1
1862	2
1873	2
1874	4
1879	1
1882	2
1884	2
1885	5
1887	1
1888	4
1890	3
1891	1
1892	3
1893	3
1894	7
1895	2
1896	3
1897	4
1899	5
1900	4
1901	3
1903	5
1904	11
1905	16
1906	13
1907	31
1908	27
1909	51
1910	8
1911	37
1912	5
1913	73
1914	19
1915	77
1916	36
1917	47
1918	55
1919	69
1920	44
1921	71
1922	151
1923	110
1924	103
1925	113
1926	287
1927	114
1928	404
1929	71
1930	80
1931	454
1932	331
1933	328
1934	275
1935	227
1936	97
1937	377
1938	467
1939	212
1940	268
1941	361
1942	569
1943	374
1944	214
1945	476
1946	512
1947	373
1948	535
1949	516
1950	617
1951	409
1952	722
1953	651
1954	875
1955	937
1956	685
1957	552
1958	461
1959	470
1960	684
1961	313
1962	741
1963	768
1964	711
1965	568
1966	1,282
1967	733
1968	372
1969	543
1970	1,142
1971	758
1972	645
1973	1,188
1974	926
1975	820
1976	810
1977	801
1978	694
1979	758
1980	706
1981	1,148
1982	685
1983	921
1984	1,754
1985	1,141
1986	1,225
1987	1,482
1988	893
1989	1,320
1990	1,321
1991	1,028
1992	2,163
1993	1,285
1994	1,614
1995	806
1996	1,034
1997	1,588
1998	872
1999	544
2000	1,171
2001	1,138
2002	1,024
2003	840
2004	937
2005	675
2006	705
2007	1,055
2008	1,032
2009	1,299
2010	751
2011	1,291
2012	1,015
2013	568
2014	656
2015	608
2016	755
2017	918
2018	407
2019	626
2020	497
2021	450
2022	567
2023	536
2024	574
2025	659
2026	450

Download the Data

Data for records on 1975-04-27: 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	594
100 to 200	5
200 to 300	1
300 to 400	0
400 to 500	0
500 to 600	1