Weather Records on 17 April 1966

409 weather records were set or tied worldwide on 17 April 1966. Highest significance: Talkeetna AP, US.

Key Facts for 17 April 1966

On 17 April 1966, 409 weather records were set or tied at long-record stations worldwide.
80 were record highs and 218 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 7 monthly and 402 daily.
Talkeetna AP set a monthly record daily precipitation of 63.5 mm (2.5 in) on 17 April 1966.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 453 records.

Record Map

409 stations

409 station records on 17 April 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Talkeetna AP	United States	Record daily precipitation	63.5 mm (2.5 in)	65 of 100 (Major)
Danger Point - Vrt.	South Africa	Record daily precipitation	34.0 mm (1.3 in)	50 of 100 (Notable)
Tranebjerg	Denmark	Record low maximum temperature	0.5 C (32.9 F)	47 of 100 (Notable)
Uppsala_Aut	Sweden	Record low maximum temperature	-2.5 C (27.5 F)	47 of 100 (Notable)
Stockholm	Sweden	Record low minimum temperature	-10.0 C (14.0 F)	41 of 100 (Notable)
Vasteras-Hasslo	Sweden	Record low minimum temperature	-10.3 C (13.5 F)	40 of 100 (Notable)
Orebro	Sweden	Record low minimum temperature	-10.2 C (13.6 F)	38 of 100 (Notable)
Gavle	Sweden	Record low maximum temperature	-3.9 C (25.0 F)	38 of 100 (Notable)
Sveg	Sweden	Record snow depth	94.0 cm (37.0 in)	38 of 100 (Notable)
Jokkmokk	Sweden	Record low maximum temperature	-5.6 C (21.9 F)	38 of 100 (Notable)
Orebro	Sweden	Record low maximum temperature	-1.5 C (29.3 F)	37 of 100 (Notable)
Uppsala_Aut	Sweden	Record low minimum temperature	-10.7 C (12.7 F)	37 of 100 (Notable)
Umea	Sweden	Record low maximum temperature	-4.1 C (24.6 F)	37 of 100 (Notable)
Arhangelsk	Russia	Record low minimum temperature	-21.9 C (-7.4 F)	36 of 100 (Notable)
Haparanda	Sweden	Record low maximum temperature	-5.5 C (22.1 F)	36 of 100 (Notable)
Kristianstad	Sweden	Record low maximum temperature	-0.6 C (30.9 F)	36 of 100 (Notable)
Karlshamn	Sweden	Record low maximum temperature	-1.0 C (30.2 F)	36 of 100 (Notable)
Oksoey Fyr	Norway	Record low minimum temperature	-4.5 C (23.9 F)	35 of 100 (Notable)
Trondheim - Voll	Norway	Record low minimum temperature	-10.1 C (13.8 F)	35 of 100 (Notable)
Visby_Flygplats	Sweden	Record low minimum temperature	-6.0 C (21.2 F)	35 of 100 (Notable)
Karlstad	Sweden	Record low minimum temperature	-8.0 C (17.6 F)	35 of 100 (Notable)
Pitea	Sweden	Record low maximum temperature	-6.2 C (20.8 F)	35 of 100 (Notable)
Barrinha	Brazil	Record daily precipitation	70.2 mm (2.8 in)	34 of 100 (Routine)
Itaporanga Dajuda	Brazil	Record daily precipitation	72.8 mm (2.9 in)	34 of 100 (Routine)
Boras	Sweden	Record low maximum temperature	-1.0 C (30.2 F)	34 of 100 (Routine)
Jonkoping	Sweden	Record low maximum temperature	-1.9 C (28.6 F)	34 of 100 (Routine)
Vanersborg	Sweden	Record low maximum temperature	-2.0 C (28.4 F)	34 of 100 (Routine)
Vasteras-Hasslo	Sweden	Record low maximum temperature	-1.0 C (30.2 F)	34 of 100 (Routine)
Visby_Flygplats	Sweden	Record low maximum temperature	-1.5 C (29.3 F)	33 of 100 (Routine)
Hawthorne AP	United States	Record high maximum temperature	29.4 C (84.9 F)	33 of 100 (Routine)
Tartu	Estonia	Record low minimum temperature	-6.6 C (20.1 F)	32 of 100 (Routine)
Paisley	United Kingdom	Record low maximum temperature	3.9 C (39.0 F)	32 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record low maximum temperature	5.3 C (41.5 F)	31 of 100 (Routine)
Seleng	India	Record daily precipitation	83.6 mm (3.3 in)	31 of 100 (Routine)
Malung	Sweden	Record low minimum temperature	-21.1 C (-6.0 F)	31 of 100 (Routine)
Stornoway Airport	United Kingdom	Record low minimum temperature	-2.3 C (27.9 F)	31 of 100 (Routine)
Hyannis	United States	Record low minimum temperature	-5.0 C (23.0 F)	31 of 100 (Routine)
Stromsfoss Sluse	Norway	Record snow depth	32.0 cm (12.6 in)	30 of 100 (Routine)
Holmogadd A	Sweden	Record low maximum temperature	-6.7 C (19.9 F)	30 of 100 (Routine)
Tower 2S	United States	Record daily snowfall	5.1 cm (2.0 in)	30 of 100 (Routine)
Fantan	Armenia	Record daily precipitation	40.3 mm (1.6 in)	29 of 100 (Routine)
Carpina (Floresta Dos Leoes)	Brazil	Record daily precipitation	48.7 mm (1.9 in)	29 of 100 (Routine)
Wrixum/Fohr	Germany	Record low maximum temperature	1.5 C (34.7 F)	29 of 100 (Routine)
Faerder Fyr	Norway	Record low minimum temperature	-3.0 C (26.6 F)	29 of 100 (Routine)
Harnosand	Sweden	Record low maximum temperature	-2.0 C (28.4 F)	29 of 100 (Routine)
Umea	Sweden	Record low minimum temperature	-14.1 C (6.6 F)	29 of 100 (Routine)
Narva	Estonia	Record low minimum temperature	-12.8 C (9.0 F)	28 of 100 (Routine)
Gogland	Russia	Record low minimum temperature	-13.6 C (7.5 F)	28 of 100 (Routine)
Nordby (Fano)	Denmark	Record low maximum temperature	2.0 C (35.6 F)	27 of 100 (Routine)
De Bilt	Netherlands	Record low maximum temperature	5.1 C (41.2 F)	27 of 100 (Routine)
Utsira Fyr	Norway	Record low minimum temperature	-2.0 C (28.4 F)	27 of 100 (Routine)
Johnstown	United States	Record low minimum temperature	-6.1 C (21.0 F)	27 of 100 (Routine)
Nes Pa Hedmark	Norway	Record snow depth	77.0 cm (30.3 in)	26 of 100 (Routine)
Holmogadd A	Sweden	Record low minimum temperature	-13.6 C (7.5 F)	26 of 100 (Routine)
Landsort	Sweden	Record low minimum temperature	-7.0 C (19.4 F)	26 of 100 (Routine)
Sheffield	United Kingdom	Record low maximum temperature	3.3 C (37.9 F)	26 of 100 (Routine)
Crockett	United States	Record high maximum temperature	30.6 C (87.1 F)	26 of 100 (Routine)
Salinas AP	United States	Record high minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Fort Qu'appelle	Canada	Record low maximum temperature	-6.1 C (21.0 F)	25 of 100 (Routine)
Aguiar da Beira	Portugal	Record daily precipitation	34.0 mm (1.3 in)	25 of 100 (Routine)

Counts by Type and Timescale

409 records

Records set or tied on 17 April 1966 by type: Highest daily maximum 30, Lowest daily maximum 142, Highest daily minimum 50, Lowest daily minimum 76, Heaviest daily rainfall 83, Heaviest daily snowfall 10, Deepest snow cover 18.

Records on 17 April 1966 by type
Record type	Records
Highest daily maximum	30
Lowest daily maximum	142
Highest daily minimum	50
Lowest daily minimum	76
Heaviest daily rainfall	83
Heaviest daily snowfall	10
Deepest snow cover	18

Records on 17 April 1966 by timescale: all-time 0, monthly 7, daily 402.

How Much Records Were Beaten By

343 broken records

Margins by which the 343 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 320.0. Ties are not counted.

Top 20 by Significance

17 April 1966

Top 20 records on 17 April 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 1966	Talkeetna AP, US	monthly rain	63.5 mm (2.5 in)	30.5 mm (1.2 in)	37 years	65 of 100 (Major)
17 April 1966	Danger Point - Vrt., ZA	daily rain	34.0 mm (1.3 in)	27.2 mm (1.1 in)	16 years	50 of 100 (Notable)
17 April 1966	Tranebjerg, DK	daily low max	0.5 C (32.9 F)	4.5 C (8.1 F)	86 years	47 of 100 (Notable)
17 April 1966	Uppsala_Aut, SE	daily low max	-2.5 C (27.5 F)	3.5 C (6.3 F)	113 years	47 of 100 (Notable)
17 April 1966	Stockholm, SE	daily low min	-10.0 C (14.0 F)	3.0 C (5.4 F)	81 years	41 of 100 (Notable)
17 April 1966	Vasteras-Hasslo, SE	daily low min	-10.3 C (13.5 F)	2.8 C (5.0 F)	81 years	40 of 100 (Notable)
17 April 1966	Orebro, SE	daily low min	-10.2 C (13.6 F)	2.2 C (4.0 F)	81 years	38 of 100 (Notable)
17 April 1966	Gavle, SE	daily low max	-3.9 C (25.0 F)	2.9 C (5.2 F)	81 years	38 of 100 (Notable)
17 April 1966	Sveg, SE	daily snow depth	94.0 cm (37.0 in)	32.0 cm (12.6 in)	49 years	38 of 100 (Notable)
17 April 1966	Jokkmokk, SE	daily low max	-5.6 C (21.9 F)	3.6 C (6.5 F)	75 years	38 of 100 (Notable)
17 April 1966	Orebro, SE	daily low max	-1.5 C (29.3 F)	2.5 C (4.5 F)	81 years	37 of 100 (Notable)
17 April 1966	Uppsala_Aut, SE	daily low min	-10.7 C (12.7 F)	1.1 C (2.0 F)	81 years	37 of 100 (Notable)
17 April 1966	Umea, SE	daily low max	-4.1 C (24.6 F)	2.6 C (4.7 F)	76 years	37 of 100 (Notable)
17 April 1966	Arhangelsk, RU	daily low min	-21.9 C (-7.4 F)	2.9 C (5.2 F)	81 years	36 of 100 (Notable)
17 April 1966	Haparanda, SE	daily low max	-5.5 C (22.1 F)	2.7 C (4.9 F)	70 years	36 of 100 (Notable)
17 April 1966	Kristianstad, SE	daily low max	-0.6 C (30.9 F)	1.6 C (2.9 F)	81 years	36 of 100 (Notable)
17 April 1966	Karlshamn, SE	daily low max	-1.0 C (30.2 F)	1.5 C (2.7 F)	81 years	36 of 100 (Notable)
17 April 1966	Oksoey Fyr, NO	daily low min	-4.5 C (23.9 F)	3.1 C (5.6 F)	56 years	35 of 100 (Notable)
17 April 1966	Trondheim - Voll, NO	daily low min	-10.1 C (13.8 F)	6.4 C (11.5 F)	43 years	35 of 100 (Notable)
17 April 1966	Visby_Flygplats, SE	daily low min	-6.0 C (21.2 F)	1.0 C (1.8 F)	81 years	35 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

1799 to 1966

Records set or tied on this calendar date in each year from 1799 to 1966. 1966 had 409 records.

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

Records on 04-17 in each year
Year	Records
1799	1
1807	1
1808	1
1815	1
1817	1
1818	1
1819	1
1823	1
1825	1
1830	1
1835	3
1837	1
1845	1
1847	2
1851	1
1852	3
1853	1
1854	1
1855	1
1857	1
1858	1
1862	1
1865	2
1868	1
1873	4
1874	1
1875	3
1877	4
1878	2
1880	2
1889	1
1890	2
1891	2
1892	4
1894	5
1895	1
1896	5
1897	6
1898	3
1899	1
1900	2
1901	4
1902	4
1903	5
1904	19
1905	11
1906	14
1907	16
1908	38
1909	7
1910	29
1911	33
1912	27
1913	20
1914	83
1915	30
1916	30
1917	32
1918	35
1919	39
1920	87
1921	148
1922	96
1923	71
1924	74
1925	103
1926	140
1927	256
1928	308
1929	145
1930	238
1931	216
1932	615
1933	261
1934	234
1935	374
1936	308
1937	439
1938	564
1939	618
1940	337
1941	460
1942	415
1943	285
1944	334
1945	475
1946	492
1947	461
1948	622
1949	439
1950	293
1951	441
1952	529
1953	818
1954	650
1955	394
1956	486
1957	277
1958	702
1959	434
1960	553
1961	667
1962	597
1963	702
1964	766
1965	411
1966	409
1967	935
1968	745
1969	728
1970	547
1971	924
1972	546
1973	589
1974	244
1975	666
1976	1,630
1977	906
1978	620
1979	810
1980	675
1981	621
1982	965
1983	1,365
1984	720
1985	917
1986	997
1987	960
1988	1,082
1989	638
1990	1,065
1991	614
1992	1,105
1993	847
1994	1,047
1995	1,211
1996	1,044
1997	889
1998	1,795
1999	1,730
2000	1,082
2001	1,013
2002	2,284
2003	1,037
2004	761
2005	572
2006	1,430
2007	863
2008	842
2009	779
2010	606
2011	982
2012	920
2013	1,796
2014	913
2015	813
2016	977
2017	469
2018	1,585
2019	458
2020	1,165
2021	701
2022	831
2023	628
2024	690
2025	1,058
2026	838

Download the Data

Data for records on 1966-04-17: 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	333
50 to 100	4
100 to 150	3
150 to 200	1
200 to 250	0
250 to 300	1
300 to 350	1