Weather Records on 17 April 1979

810 weather records were set or tied worldwide on 17 April 1979. Highest significance: Wanganella (Bundyulumblah), AU.

Key Facts for 17 April 1979

On 17 April 1979, 810 weather records were set or tied at long-record stations worldwide.
286 were record highs and 151 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 10 monthly and 799 daily.
Wanganella (Bundyulumblah) set a daily record precipitation of 47.0 mm (1.9 in) on 17 April 1979.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 450 records.

Record Map

810 stations

810 station records on 17 April 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wanganella (Bundyulumblah)	Australia	Record daily precipitation	47.0 mm (1.9 in)	71 of 100 (Major)
Coulta	Australia	Record daily precipitation	27.6 mm (1.1 in)	68 of 100 (Major)
Carrarang	Australia	Record daily precipitation	58.0 mm (2.3 in)	66 of 100 (Major)
Balranald (Rsl)	Australia	Record daily precipitation	31.0 mm (1.2 in)	59 of 100 (Notable)
Banff	Canada	Record daily snowfall	18.9 cm (7.4 in)	59 of 100 (Notable)
Nqamakwe (Tnk)	South Africa	Record daily precipitation	51.5 mm (2.0 in)	59 of 100 (Notable)
Fort Vermilion Cda	Canada	Record daily snowfall	22.9 cm (9.0 in)	56 of 100 (Notable)
Cumbalum (Fairview)	Australia	Record daily precipitation	90.2 mm (3.6 in)	51 of 100 (Notable)
Philipstown (Tnk)	South Africa	Record daily precipitation	50.0 mm (2.0 in)	50 of 100 (Notable)
Gaudan-In-Turkmen	Turkmenistan	Record daily precipitation	43.3 mm (1.7 in)	50 of 100 (Notable)
Samarkand	Uzbekistan	Record daily precipitation	35.2 mm (1.4 in)	50 of 100 (Notable)
Tamala	Australia	Record daily precipitation	57.0 mm (2.2 in)	49 of 100 (Notable)
Fessenden	United States	Record snow depth	30.5 cm (12.0 in)	49 of 100 (Notable)
Willunga	Australia	Record daily precipitation	32.2 mm (1.3 in)	46 of 100 (Notable)
Pooncarie (Mulurulu Station)	Australia	Record daily precipitation	25.0 mm (1.0 in)	46 of 100 (Notable)
Ballina (Crowley Village)	Australia	Record daily precipitation	101.0 mm (4.0 in)	46 of 100 (Notable)
Hebbronville	United States	Record daily precipitation	63.5 mm (2.5 in)	46 of 100 (Notable)
Ixtepec	Mexico	Record daily precipitation	45.5 mm (1.8 in)	45 of 100 (Notable)
Encinal	United States	Record daily precipitation	68.6 mm (2.7 in)	45 of 100 (Notable)
Beaverlodge Cda	Canada	Record daily snowfall	31.0 cm (12.2 in)	44 of 100 (Notable)
Northampton	Australia	Record daily precipitation	32.4 mm (1.3 in)	43 of 100 (Notable)
Cape Moreton Lighthouse	Australia	Record daily precipitation	53.8 mm (2.1 in)	43 of 100 (Notable)
Willow City	United States	Record snow depth	25.4 cm (10.0 in)	43 of 100 (Notable)
Morton	United States	Record daily precipitation	50.8 mm (2.0 in)	43 of 100 (Notable)
Petford	Australia	Record daily precipitation	35.0 mm (1.4 in)	42 of 100 (Notable)
Gracemere Russell St	Australia	Record daily precipitation	48.0 mm (1.9 in)	42 of 100 (Notable)
Kaka	Turkmenistan	Record daily precipitation	32.0 mm (1.3 in)	42 of 100 (Notable)
Double Island Point Lighthouse	Australia	Record daily precipitation	86.0 mm (3.4 in)	41 of 100 (Notable)
Irene Mtn Wauconda	United States	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Maude Post Office	Australia	Record daily precipitation	39.0 mm (1.5 in)	40 of 100 (Notable)
Second Valley (Spring Grove)	Australia	Record daily precipitation	36.0 mm (1.4 in)	39 of 100 (Notable)
Euston (Sunnyside)	Australia	Record daily precipitation	26.6 mm (1.0 in)	39 of 100 (Notable)
Carrizo Springs 3S	United States	Record daily precipitation	42.7 mm (1.7 in)	39 of 100 (Notable)
Presidio	United States	Record daily precipitation	83.8 mm (3.3 in)	38 of 100 (Notable)
Yallunda Flat (Meetigilly)	Australia	Record daily precipitation	27.2 mm (1.1 in)	37 of 100 (Notable)
Beaverlodge Cda	Canada	Record daily precipitation	28.0 mm (1.1 in)	37 of 100 (Notable)
Wray	United States	Record high minimum temperature	11.1 C (52.0 F)	37 of 100 (Notable)
Rolla 1NE	United States	Record snow depth	81.3 cm (32.0 in)	37 of 100 (Notable)
Midland Odessa	United States	Record daily precipitation	41.1 mm (1.6 in)	37 of 100 (Notable)
Toombul Bowls Club	Australia	Record daily precipitation	28.2 mm (1.1 in)	36 of 100 (Notable)
Estancia	Brazil	Record daily precipitation	50.0 mm (2.0 in)	36 of 100 (Notable)
Blanca 4 NW	United States	Record high minimum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Sharon Springs	United States	Record high minimum temperature	16.7 C (62.1 F)	36 of 100 (Notable)
Corinne	United States	Record high minimum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
Minlaton	Australia	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Como	Australia	Record daily precipitation	74.3 mm (2.9 in)	35 of 100 (Notable)
Riverside	Australia	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Russell Island	Australia	Record daily precipitation	56.4 mm (2.2 in)	34 of 100 (Routine)
Berriwillock	Australia	Record daily precipitation	29.4 mm (1.2 in)	34 of 100 (Routine)
Kinuso Rs	Canada	Record daily snowfall	10.5 cm (4.1 in)	34 of 100 (Routine)
Hays 1 S	United States	Record high minimum temperature	14.4 C (57.9 F)	34 of 100 (Routine)
Yellowstone Park Mammoth	United States	Record high minimum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Woodburn Post Office	Australia	Record daily precipitation	77.0 mm (3.0 in)	33 of 100 (Routine)
Nova Trento	Brazil	Record daily precipitation	52.4 mm (2.1 in)	33 of 100 (Routine)
Castle Rock	United States	Record high minimum temperature	8.9 C (48.0 F)	33 of 100 (Routine)
Alliance 1WNW	United States	Record high minimum temperature	10.6 C (51.1 F)	33 of 100 (Routine)
Mullumbimby (Fairview Farm)	Australia	Record daily precipitation	63.6 mm (2.5 in)	32 of 100 (Routine)
Vajda-Guba	Russia	Record low minimum temperature	-16.2 C (2.8 F)	32 of 100 (Routine)
Queenstown	South Africa	Record daily precipitation	27.6 mm (1.1 in)	32 of 100 (Routine)
Scott City	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

810 records

Records set or tied on 17 April 1979 by type: Highest daily maximum 78, Lowest daily maximum 102, Highest daily minimum 208, Lowest daily minimum 49, Heaviest daily rainfall 332, Heaviest daily snowfall 14, Deepest snow cover 27.

Records on 17 April 1979 by type
Record type	Records
Highest daily maximum	78
Lowest daily maximum	102
Highest daily minimum	208
Lowest daily minimum	49
Heaviest daily rainfall	332
Heaviest daily snowfall	14
Deepest snow cover	27

Records on 17 April 1979 by timescale: all-time 1, monthly 10, daily 799.

How Much Records Were Beaten By

695 broken records

Margins by which the 695 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 1067.0. Ties are not counted.

Top 20 by Significance

17 April 1979

Top 20 records on 17 April 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 1979	Wanganella (Bundyulumblah), AU	daily rain	47.0 mm (1.9 in)	47.0 mm (1.9 in)	76 years	71 of 100 (Major)
17 April 1979	Coulta, AU	daily rain	27.6 mm (1.1 in)	18.5 mm (0.7 in)	89 years	68 of 100 (Major)
17 April 1979	Carrarang, AU	daily rain	58.0 mm (2.3 in)	54.4 mm (2.1 in)	60 years	66 of 100 (Major)
17 April 1979	Balranald (Rsl), AU	daily rain	31.0 mm (1.2 in)	20.6 mm (0.8 in)	84 years	59 of 100 (Notable)
17 April 1979	Banff, CA	daily snowfall	18.9 cm (7.4 in)	10.5 cm (4.1 in)	86 years	59 of 100 (Notable)
17 April 1979	Nqamakwe (Tnk), ZA	daily rain	51.5 mm (2.0 in)	33.5 mm (1.3 in)	68 years	59 of 100 (Notable)
17 April 1979	Fort Vermilion Cda, CA	daily snowfall	22.9 cm (9.0 in)	20.4 cm (8.0 in)	30 years	56 of 100 (Notable)
17 April 1979	Cumbalum (Fairview), AU	daily rain	90.2 mm (3.6 in)	52.4 mm (2.1 in)	56 years	51 of 100 (Notable)
17 April 1979	Philipstown (Tnk), ZA	daily rain	50.0 mm (2.0 in)	29.5 mm (1.2 in)	22 years	50 of 100 (Notable)
17 April 1979	Gaudan-In-Turkmen, TM	daily rain	43.3 mm (1.7 in)	23.9 mm (0.9 in)	37 years	50 of 100 (Notable)
17 April 1979	Samarkand, UZ	daily rain	35.2 mm (1.4 in)	23.6 mm (0.9 in)	40 years	50 of 100 (Notable)
17 April 1979	Tamala, AU	daily rain	57.0 mm (2.2 in)	26.0 mm (1.0 in)	56 years	49 of 100 (Notable)
17 April 1979	Fessenden, US	daily snow depth	30.5 cm (12.0 in)	20.3 cm (8.0 in)	54 years	49 of 100 (Notable)
17 April 1979	Willunga, AU	daily rain	32.2 mm (1.3 in)	7.6 mm (0.30 in)	89 years	46 of 100 (Notable)
17 April 1979	Pooncarie (Mulurulu Station), AU	daily rain	25.0 mm (1.0 in)	21.7 mm (0.9 in)	46 years	46 of 100 (Notable)
17 April 1979	Ballina (Crowley Village), AU	daily rain	101.0 mm (4.0 in)	48.9 mm (1.9 in)	53 years	46 of 100 (Notable)
17 April 1979	Hebbronville, US	daily rain	63.5 mm (2.5 in)	46.2 mm (1.8 in)	40 years	46 of 100 (Notable)
17 April 1979	Ixtepec, MX	daily rain	45.5 mm (1.8 in)	42.7 mm (1.7 in)	9 years	45 of 100 (Notable)
17 April 1979	Encinal, US	daily rain	68.6 mm (2.7 in)	61.0 mm (2.4 in)	5 years	45 of 100 (Notable)
17 April 1979	Beaverlodge Cda, CA	monthly snowfall	31.0 cm (12.2 in)	5.6 cm (2.2 in)	51 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

1799 to 1979

Records set or tied on this calendar date in each year from 1799 to 1979. 1979 had 810 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 1979-04-17: 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 200	688
200 to 400	5
400 to 600	1
600 to 800	0
800 to 1000	0
1000 to 1200	1