Weather Records on 17 April 1974

244 weather records were set or tied worldwide on 17 April 1974. Highest significance: Cook, AU.

Key Facts for 17 April 1974

On 17 April 1974, 244 weather records were set or tied at long-record stations worldwide.
31 were record highs and 60 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 7 monthly and 236 daily.
Cook set a daily record precipitation of 45.6 mm (1.8 in) on 17 April 1974.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 454 records.

Record Map

244 stations

244 station records on 17 April 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cook	Australia	Record daily precipitation	45.6 mm (1.8 in)	54 of 100 (Notable)
Bodocongo	Brazil	Record daily precipitation	63.4 mm (2.5 in)	49 of 100 (Notable)
Serra Caiada	Brazil	Record daily precipitation	67.8 mm (2.7 in)	47 of 100 (Notable)
Pedro Escobedo	Mexico	Record daily precipitation	110.0 mm (4.3 in)	47 of 100 (Notable)
Mulyungarie	Australia	Record daily precipitation	26.6 mm (1.0 in)	42 of 100 (Notable)
Itumirim	Brazil	Record daily precipitation	42.0 mm (1.7 in)	41 of 100 (Notable)
Nuwara Eliya	Sri Lanka	Record low maximum temperature	19.2 C (66.6 F)	41 of 100 (Notable)
Kirrama Station	Australia	Record daily precipitation	40.8 mm (1.6 in)	40 of 100 (Notable)
Sao Tome	Brazil	Record daily precipitation	75.0 mm (3.0 in)	37 of 100 (Notable)
Marruas	Brazil	Record daily precipitation	70.2 mm (2.8 in)	36 of 100 (Notable)
Sao Miguel Dos Campos	Brazil	Record daily precipitation	65.6 mm (2.6 in)	36 of 100 (Notable)
Mirandela	Brazil	Record daily precipitation	54.2 mm (2.1 in)	36 of 100 (Notable)
Hvar	Croatia	Record daily precipitation	66.6 mm (2.6 in)	36 of 100 (Notable)
Velikie Luki	Russia	Record low minimum temperature	-5.8 C (21.6 F)	35 of 100 (Notable)
Hawkestone, Howick	South Africa	Record daily precipitation	43.2 mm (1.7 in)	35 of 100 (Notable)
Coruripe	Brazil	Record daily precipitation	106.0 mm (4.2 in)	34 of 100 (Routine)
Japaratuba	Brazil	Record daily precipitation	85.0 mm (3.3 in)	34 of 100 (Routine)
Tapera	Brazil	Record daily precipitation	84.1 mm (3.3 in)	33 of 100 (Routine)
Pao de Acucar	Brazil	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Fazenda Monte Alegre	Brazil	Record daily precipitation	34.2 mm (1.3 in)	31 of 100 (Routine)
Sao Luiz Do Quitunde	Brazil	Record daily precipitation	83.0 mm (3.3 in)	31 of 100 (Routine)
Porto da Folha	Brazil	Record daily precipitation	41.4 mm (1.6 in)	31 of 100 (Routine)
Mombaca	Brazil	Record daily precipitation	65.0 mm (2.6 in)	30 of 100 (Routine)
Sao Joao Do Sabugi	Brazil	Record daily precipitation	70.0 mm (2.8 in)	30 of 100 (Routine)
Brejo Santo	Brazil	Record daily precipitation	136.6 mm (5.4 in)	29 of 100 (Routine)
Nossa Senhora da Gloria	Brazil	Record daily precipitation	77.0 mm (3.0 in)	29 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record low minimum temperature	-4.2 C (24.4 F)	29 of 100 (Routine)
Ft Stanton	United States	Record low minimum temperature	-6.7 C (19.9 F)	29 of 100 (Routine)
Chakola (Umeralla)	Australia	Record daily precipitation	26.6 mm (1.0 in)	28 of 100 (Routine)
Barra Do Jua	Brazil	Record daily precipitation	90.8 mm (3.6 in)	28 of 100 (Routine)
Missao Velha	Brazil	Record daily precipitation	84.8 mm (3.3 in)	28 of 100 (Routine)
Drobeta Turnu Severin	Romania	Record low maximum temperature	5.3 C (41.5 F)	28 of 100 (Routine)
Suassurana	Brazil	Record daily precipitation	66.2 mm (2.6 in)	27 of 100 (Routine)
Cajazeiras	Brazil	Record daily precipitation	72.3 mm (2.8 in)	27 of 100 (Routine)
Pedra Lavrada	Brazil	Record daily precipitation	38.1 mm (1.5 in)	27 of 100 (Routine)
Salgadinho	Brazil	Record daily precipitation	54.1 mm (2.1 in)	27 of 100 (Routine)
Brejo da Madre de Deus	Brazil	Record daily precipitation	60.0 mm (2.4 in)	27 of 100 (Routine)
Ribeira Do Pombal (Pombal)	Brazil	Record daily precipitation	45.0 mm (1.8 in)	27 of 100 (Routine)
Lagoa Grande (Mmv)	Brazil	Record daily precipitation	46.2 mm (1.8 in)	26 of 100 (Routine)
Tonala (Smn)	Mexico	Record high maximum temperature	40.0 C (104.0 F)	26 of 100 (Routine)
Oorschot	South Africa	Record daily precipitation	38.0 mm (1.5 in)	26 of 100 (Routine)
Tuba City	United States	Record low minimum temperature	-6.7 C (19.9 F)	26 of 100 (Routine)
Assuncao	Brazil	Record daily precipitation	64.0 mm (2.5 in)	25 of 100 (Routine)
Sao Jose de Piranhas	Brazil	Record daily precipitation	53.4 mm (2.1 in)	25 of 100 (Routine)
Desterro	Brazil	Record daily precipitation	50.0 mm (2.0 in)	25 of 100 (Routine)
Delmiro Gouveia (Pedra)	Brazil	Record daily precipitation	35.0 mm (1.4 in)	24 of 100 (Routine)
Itaporanga (Misericordia)	Brazil	Record daily precipitation	137.5 mm (5.4 in)	24 of 100 (Routine)
Kayenta	United States	Record low minimum temperature	-9.4 C (15.1 F)	24 of 100 (Routine)
Piranhas	Brazil	Record daily precipitation	34.2 mm (1.3 in)	23 of 100 (Routine)
Castelo Do Piaui (Marvao)	Brazil	Record daily precipitation	88.7 mm (3.5 in)	23 of 100 (Routine)
Catarina	Brazil	Record daily precipitation	58.3 mm (2.3 in)	23 of 100 (Routine)
Martins	Brazil	Record daily precipitation	129.0 mm (5.1 in)	23 of 100 (Routine)
Pombal	Brazil	Record daily precipitation	109.4 mm (4.3 in)	23 of 100 (Routine)
Uaua	Brazil	Record daily precipitation	30.6 mm (1.2 in)	23 of 100 (Routine)
Chemult	United States	Record snow depth	71.1 cm (28.0 in)	23 of 100 (Routine)
Pio IX (Patrocinio)	Brazil	Record daily precipitation	105.6 mm (4.2 in)	22 of 100 (Routine)
Centralia	United States	Record daily precipitation	31.0 mm (1.2 in)	22 of 100 (Routine)
Dulce	United States	Record low minimum temperature	-12.2 C (10.0 F)	22 of 100 (Routine)
Kendall	United States	Record high minimum temperature	4.4 C (39.9 F)	22 of 100 (Routine)
Princesa Isabel	Brazil	Record daily precipitation	60.0 mm (2.4 in)	21 of 100 (Routine)

Counts by Type and Timescale

244 records

Records set or tied on 17 April 1974 by type: Highest daily maximum 9, Lowest daily maximum 15, Highest daily minimum 22, Lowest daily minimum 45, Heaviest daily rainfall 150, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 17 April 1974 by type
Record type	Records
Highest daily maximum	9
Lowest daily maximum	15
Highest daily minimum	22
Lowest daily minimum	45
Heaviest daily rainfall	150
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 17 April 1974 by timescale: all-time 1, monthly 7, daily 236.

How Much Records Were Beaten By

214 broken records

Margins by which the 214 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

17 April 1974

Top 20 records on 17 April 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 1974	Cook, AU	daily rain	45.6 mm (1.8 in)	33.4 mm (1.3 in)	31 years	54 of 100 (Notable)
17 April 1974	Bodocongo, BR	daily rain	63.4 mm (2.5 in)	45.4 mm (1.8 in)	39 years	49 of 100 (Notable)
17 April 1974	Serra Caiada, BR	daily rain	67.8 mm (2.7 in)	41.3 mm (1.6 in)	49 years	47 of 100 (Notable)
17 April 1974	Pedro Escobedo, MX	daily rain	110.0 mm (4.3 in)	100.1 mm (3.9 in)	15 years	47 of 100 (Notable)
17 April 1974	Mulyungarie, AU	daily rain	26.6 mm (1.0 in)	19.5 mm (0.8 in)	23 years	42 of 100 (Notable)
17 April 1974	Itumirim, BR	daily rain	42.0 mm (1.7 in)	31.6 mm (1.2 in)	29 years	41 of 100 (Notable)
17 April 1974	Nuwara Eliya, LK	daily low max	19.2 C (66.6 F)	0.8 C (1.4 F)	88 years	41 of 100 (Notable)
17 April 1974	Kirrama Station, AU	daily rain	40.8 mm (1.6 in)	21.7 mm (0.9 in)	55 years	40 of 100 (Notable)
17 April 1974	Sao Tome, BR	daily rain	75.0 mm (3.0 in)	43.0 mm (1.7 in)	16 years	37 of 100 (Notable)
17 April 1974	Marruas, BR	daily rain	70.2 mm (2.8 in)	32.7 mm (1.3 in)	20 years	36 of 100 (Notable)
17 April 1974	Sao Miguel Dos Campos, BR	daily rain	65.6 mm (2.6 in)	33.4 mm (1.3 in)	32 years	36 of 100 (Notable)
17 April 1974	Mirandela, BR	daily rain	54.2 mm (2.1 in)	35.2 mm (1.4 in)	0 years	36 of 100 (Notable)
17 April 1974	Hvar, HR	daily rain	66.6 mm (2.6 in)	19.0 mm (0.7 in)	15 years	36 of 100 (Notable)
17 April 1974	Velikie Luki, RU	daily low min	-5.8 C (21.6 F)	0.4 C (0.7 F)	89 years	35 of 100 (Notable)
17 April 1974	Hawkestone, Howick, ZA	daily rain	43.2 mm (1.7 in)	22.4 mm (0.9 in)	32 years	35 of 100 (Notable)
17 April 1974	Coruripe, BR	daily rain	106.0 mm (4.2 in)	57.0 mm (2.2 in)	16 years	34 of 100 (Routine)
17 April 1974	Japaratuba, BR	daily rain	85.0 mm (3.3 in)	20.8 mm (0.8 in)	53 years	34 of 100 (Routine)
17 April 1974	Tapera, BR	daily rain	84.1 mm (3.3 in)	42.9 mm (1.7 in)	12 years	33 of 100 (Routine)
17 April 1974	Pao de Acucar, BR	daily rain	36.8 mm (1.4 in)	26.8 mm (1.1 in)	0 years	31 of 100 (Routine)
17 April 1974	Fazenda Monte Alegre, BR	daily rain	34.2 mm (1.3 in)	24.6 mm (1.0 in)	17 years	31 of 100 (Routine)

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 1974

Records set or tied on this calendar date in each year from 1799 to 1974. 1974 had 244 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 1974-04-17: 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	209
50 to 100	3
100 to 150	1
150 to 200	0
200 to 250	0
250 to 300	1