Weather Records on 17 April 2015

813 weather records were set or tied worldwide on 17 April 2015. Highest significance: Quorn, AU.

Key Facts for 17 April 2015

On 17 April 2015, 813 weather records were set or tied at long-record stations worldwide.
188 were record highs and 118 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 39 monthly and 773 daily.
Quorn set a monthly record daily precipitation of 112.4 mm (4.4 in) on 17 April 2015.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 450 records.

Record Map

813 stations

813 station records on 17 April 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Quorn	Australia	Record daily precipitation	112.4 mm (4.4 in)	90 of 100 (Exceptional)
Sharon Springs	United States	Record daily precipitation	100.3 mm (3.9 in)	83 of 100 (Exceptional)
Morchard (the Rocks)	Australia	Record daily precipitation	67.6 mm (2.7 in)	81 of 100 (Exceptional)
Hawker (Wilson)	Australia	Record daily precipitation	69.2 mm (2.7 in)	80 of 100 (Exceptional)
Hawker (Holowilena)	Australia	Record daily precipitation	47.6 mm (1.9 in)	79 of 100 (Major)
Orroroo	Australia	Record daily precipitation	92.0 mm (3.6 in)	78 of 100 (Major)
Woolgangi	Australia	Record daily precipitation	54.2 mm (2.1 in)	77 of 100 (Major)
Burra (Poonunda)	Australia	Record daily precipitation	35.0 mm (1.4 in)	76 of 100 (Major)
Quorn (Depot Flat)	Australia	Record daily precipitation	85.0 mm (3.3 in)	74 of 100 (Major)
Tumby Bay	Australia	Record daily precipitation	38.8 mm (1.5 in)	73 of 100 (Major)
Cummins	Australia	Record daily precipitation	31.4 mm (1.2 in)	71 of 100 (Major)
Sturt Vale	Australia	Record daily precipitation	100.0 mm (3.9 in)	71 of 100 (Major)
Bruce	Australia	Record daily precipitation	91.8 mm (3.6 in)	70 of 100 (Major)
Wallace	United States	Record daily precipitation	40.6 mm (1.6 in)	69 of 100 (Major)
Orroroo (Black Rock)	Australia	Record daily precipitation	100.4 mm (4.0 in)	67 of 100 (Major)
Braemar	Australia	Record daily precipitation	72.4 mm (2.9 in)	67 of 100 (Major)
Hudson	United States	Record daily precipitation	85.1 mm (3.4 in)	67 of 100 (Major)
Ceduna AMO	Australia	Record daily precipitation	34.4 mm (1.4 in)	66 of 100 (Major)
Butler Tanks (North Parnda)	Australia	Record daily precipitation	34.0 mm (1.3 in)	66 of 100 (Major)
Coldwater	United States	Record daily precipitation	59.7 mm (2.4 in)	66 of 100 (Major)
Baytown	United States	Record daily precipitation	148.6 mm (5.9 in)	66 of 100 (Major)
Dawson (Anda-Vale)	Australia	Record daily precipitation	75.0 mm (3.0 in)	65 of 100 (Major)
Beaumont Rsch Ctr	United States	Record daily precipitation	150.9 mm (5.9 in)	65 of 100 (Major)
Oodla Wirra	Australia	Record daily precipitation	73.3 mm (2.9 in)	64 of 100 (Major)
Swan Reach	Australia	Record daily precipitation	27.0 mm (1.1 in)	64 of 100 (Major)
Whyte Yarcowie	Australia	Record daily precipitation	47.8 mm (1.9 in)	63 of 100 (Major)
Overland Corner	Australia	Record daily precipitation	26.0 mm (1.0 in)	63 of 100 (Major)
Yeelanna	Australia	Record daily precipitation	29.4 mm (1.2 in)	61 of 100 (Major)
Carrieton (Glenroy Estate)	Australia	Record daily precipitation	64.0 mm (2.5 in)	61 of 100 (Major)
Hawker	Australia	Record daily precipitation	55.6 mm (2.2 in)	60 of 100 (Major)
Manna Hill	Australia	Record daily precipitation	38.0 mm (1.5 in)	60 of 100 (Major)
Buena Vista 2S	United States	Record daily snowfall	30.0 cm (11.8 in)	60 of 100 (Major)
Gammon Ranges (Wooltana)	Australia	Record daily precipitation	26.0 mm (1.0 in)	59 of 100 (Notable)
Wharminda	Australia	Record daily precipitation	31.6 mm (1.2 in)	59 of 100 (Notable)
Carrieton	Australia	Record daily precipitation	48.0 mm (1.9 in)	59 of 100 (Notable)
Koonamore	Australia	Record daily precipitation	28.8 mm (1.1 in)	59 of 100 (Notable)
Ceduna (Goode)	Australia	Record daily precipitation	37.0 mm (1.5 in)	58 of 100 (Notable)
Ceduna (Maltee)	Australia	Record daily precipitation	37.0 mm (1.5 in)	58 of 100 (Notable)
Wirrulla	Australia	Record daily precipitation	32.0 mm (1.3 in)	58 of 100 (Notable)
Mount Hope (Fairview)	Australia	Record daily precipitation	35.6 mm (1.4 in)	58 of 100 (Notable)
Tumby Bay (Yadnarie)	Australia	Record daily precipitation	47.0 mm (1.9 in)	57 of 100 (Notable)
Tarcowie	Australia	Record daily precipitation	51.0 mm (2.0 in)	57 of 100 (Notable)
Trousdale 1 NE	United States	Record daily precipitation	78.7 mm (3.1 in)	57 of 100 (Notable)
Minatare Dam (Usbr)	United States	Record daily precipitation	32.3 mm (1.3 in)	57 of 100 (Notable)
Cleve	Australia	Record daily precipitation	28.8 mm (1.1 in)	55 of 100 (Notable)
Booleroo Centre (Willowie)	Australia	Record daily precipitation	63.0 mm (2.5 in)	55 of 100 (Notable)
Greensburg	United States	Record daily precipitation	55.6 mm (2.2 in)	55 of 100 (Notable)
Oodla Wirra (McCoys Well)	Australia	Record daily precipitation	62.2 mm (2.4 in)	54 of 100 (Notable)
Lyrup	Australia	Record daily precipitation	28.4 mm (1.1 in)	54 of 100 (Notable)
Salida	United States	Record snow depth	25.4 cm (10.0 in)	54 of 100 (Notable)
Ungarra	Australia	Record daily precipitation	29.0 mm (1.1 in)	53 of 100 (Notable)
Carrieton (Eurelia)	Australia	Record daily precipitation	51.0 mm (2.0 in)	53 of 100 (Notable)
Tikanlik	China	Record daily precipitation	26.7 mm (1.1 in)	53 of 100 (Notable)
Salida	United States	Record daily snowfall	43.2 cm (17.0 in)	53 of 100 (Notable)
Karcultaby	Australia	Record daily precipitation	25.0 mm (1.0 in)	52 of 100 (Notable)
Tumby Bay (Warratta Vale)	Australia	Record daily precipitation	51.0 mm (2.0 in)	51 of 100 (Notable)
Melrose (Para Gums)	Australia	Record daily precipitation	40.0 mm (1.6 in)	51 of 100 (Notable)
Moorook	Australia	Record daily precipitation	25.0 mm (1.0 in)	51 of 100 (Notable)
Taylor Park	United States	Record daily snowfall	33.5 cm (13.2 in)	51 of 100 (Notable)
Butte	United States	Record daily precipitation	25.4 mm (1.0 in)	51 of 100 (Notable)

Counts by Type and Timescale

813 records

Records set or tied on 17 April 2015 by type: Highest daily maximum 59, Lowest daily maximum 71, Highest daily minimum 129, Lowest daily minimum 47, Heaviest daily rainfall 453, Heaviest daily snowfall 34, Deepest snow cover 20.

Records on 17 April 2015 by type
Record type	Records
Highest daily maximum	59
Lowest daily maximum	71
Highest daily minimum	129
Lowest daily minimum	47
Heaviest daily rainfall	453
Heaviest daily snowfall	34
Deepest snow cover	20

Records on 17 April 2015 by timescale: all-time 1, monthly 39, daily 773.

How Much Records Were Beaten By

729 broken records

Margins by which the 729 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 429.0. Ties are not counted.

Top 20 by Significance

17 April 2015

Top 20 records on 17 April 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 2015	Quorn, AU	monthly rain	112.4 mm (4.4 in)	47.1 mm (1.9 in)	126 years	90 of 100 (Exceptional)
17 April 2015	Sharon Springs, US	monthly rain	100.3 mm (3.9 in)	47.0 mm (1.9 in)	76 years	83 of 100 (Exceptional)
17 April 2015	Morchard (the Rocks), AU	monthly rain	67.6 mm (2.7 in)	30.0 mm (1.2 in)	72 years	81 of 100 (Exceptional)
17 April 2015	Hawker (Wilson), AU	daily rain	69.2 mm (2.7 in)	47.1 mm (1.9 in)	125 years	80 of 100 (Exceptional)
17 April 2015	Hawker (Holowilena), AU	daily rain	47.6 mm (1.9 in)	42.8 mm (1.7 in)	116 years	79 of 100 (Major)
17 April 2015	Orroroo, AU	monthly rain	92.0 mm (3.6 in)	46.0 mm (1.8 in)	62 years	78 of 100 (Major)
17 April 2015	Woolgangi, AU	monthly rain	54.2 mm (2.1 in)	21.2 mm (0.8 in)	61 years	77 of 100 (Major)
17 April 2015	Burra (Poonunda), AU	daily rain	35.0 mm (1.4 in)	22.3 mm (0.9 in)	125 years	76 of 100 (Major)
17 April 2015	Quorn (Depot Flat), AU	monthly rain	85.0 mm (3.3 in)	24.0 mm (0.9 in)	126 years	74 of 100 (Major)
17 April 2015	Tumby Bay, AU	daily rain	38.8 mm (1.5 in)	30.9 mm (1.2 in)	76 years	73 of 100 (Major)
17 April 2015	Cummins, AU	daily rain	31.4 mm (1.2 in)	17.2 mm (0.7 in)	76 years	71 of 100 (Major)
17 April 2015	Sturt Vale, AU	all-time rain	100.0 mm (3.9 in)	26.0 mm (1.0 in)	7 years	71 of 100 (Major)
17 April 2015	Bruce, AU	monthly rain	91.8 mm (3.6 in)	28.0 mm (1.1 in)	44 years	70 of 100 (Major)
17 April 2015	Wallace, US	daily rain	40.6 mm (1.6 in)	26.9 mm (1.1 in)	92 years	69 of 100 (Major)
17 April 2015	Orroroo (Black Rock), AU	monthly rain	100.4 mm (4.0 in)	25.4 mm (1.0 in)	40 years	67 of 100 (Major)
17 April 2015	Braemar, AU	monthly rain	72.4 mm (2.9 in)	36.9 mm (1.5 in)	41 years	67 of 100 (Major)
17 April 2015	Hudson, US	daily rain	85.1 mm (3.4 in)	42.7 mm (1.7 in)	74 years	67 of 100 (Major)
17 April 2015	Ceduna AMO, AU	daily rain	34.4 mm (1.4 in)	21.2 mm (0.8 in)	64 years	66 of 100 (Major)
17 April 2015	Butler Tanks (North Parnda), AU	daily rain	34.0 mm (1.3 in)	22.3 mm (0.9 in)	76 years	66 of 100 (Major)
17 April 2015	Coldwater, US	daily rain	59.7 mm (2.4 in)	29.2 mm (1.1 in)	118 years	66 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

1799 to 2015

Records set or tied on this calendar date in each year from 1799 to 2015. 2015 had 813 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	1,584
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 2015-04-17: 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 100	717
100 to 200	7
200 to 300	4
300 to 400	0
400 to 500	1