Weather Records on 20 April 2017

734 weather records were set or tied worldwide on 20 April 2017. Highest significance: Ouyen (Post Office), AU.

Key Facts for 20 April 2017

On 20 April 2017, 734 weather records were set or tied at long-record stations worldwide.
223 were record highs and 216 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 12 monthly and 721 daily.
Ouyen (Post Office) set a monthly record daily precipitation of 69.8 mm (2.7 in) on 20 April 2017.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 460 records.

Record Map

734 stations

734 station records on 20 April 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ouyen (Post Office)	Australia	Record daily precipitation	69.8 mm (2.7 in)	83 of 100 (Exceptional)
Kondoolka	Australia	Record daily precipitation	29.0 mm (1.1 in)	80 of 100 (Exceptional)
Susendal	Norway	Record daily precipitation	25.3 mm (1.0 in)	80 of 100 (Exceptional)
Yorketown	Australia	Record daily precipitation	41.2 mm (1.6 in)	70 of 100 (Major)
Hilltown	Australia	Record daily precipitation	60.0 mm (2.4 in)	67 of 100 (Major)
Yardea	Australia	Record daily precipitation	27.2 mm (1.1 in)	64 of 100 (Major)
Laura	Australia	Record daily precipitation	34.4 mm (1.4 in)	60 of 100 (Major)
Minlaton	Australia	Record daily precipitation	25.6 mm (1.0 in)	60 of 100 (Major)
Cluj Napoca	Romania	Record daily precipitation	31.7 mm (1.2 in)	59 of 100 (Notable)
Iron Knob (Gilles Downs)	Australia	Record daily precipitation	50.2 mm (2.0 in)	57 of 100 (Notable)
Kisinev	Moldova	Record daily precipitation	39.9 mm (1.6 in)	56 of 100 (Notable)
Boigbeat	Australia	Record daily precipitation	52.0 mm (2.0 in)	55 of 100 (Notable)
Roberts	Cayman Islands [United Kingdom]	Record daily precipitation	83.1 mm (3.3 in)	55 of 100 (Notable)
Nullarbor	Australia	Record daily precipitation	31.8 mm (1.3 in)	54 of 100 (Notable)
Gladstone	Australia	Record daily precipitation	30.4 mm (1.2 in)	53 of 100 (Notable)
Leova	Moldova	Record daily precipitation	40.9 mm (1.6 in)	53 of 100 (Notable)
Wirrulla (Pimbena)	Australia	Record daily precipitation	27.0 mm (1.1 in)	50 of 100 (Notable)
Port Germein	Australia	Record daily precipitation	28.0 mm (1.1 in)	50 of 100 (Notable)
Komrat	Moldova	Record daily precipitation	48.0 mm (1.9 in)	50 of 100 (Notable)
Birchip Reservoir	Australia	Record daily precipitation	47.9 mm (1.9 in)	49 of 100 (Notable)
Budapest/Pestszentlorinc	Hungary	Record daily precipitation	28.2 mm (1.1 in)	49 of 100 (Notable)
Buffalo	United States	Record daily precipitation	49.5 mm (1.9 in)	49 of 100 (Notable)
Pecs Pogany	Hungary	Record low maximum temperature	2.9 C (37.2 F)	48 of 100 (Notable)
Warrenton 1 N	United States	Record high minimum temperature	20.6 C (69.1 F)	47 of 100 (Notable)
Molokai Kaunakakai Molokai AP	United States	Record daily precipitation	44.5 mm (1.8 in)	46 of 100 (Notable)
Jamestown	Australia	Record daily precipitation	27.0 mm (1.1 in)	45 of 100 (Notable)
Ceahlau Toaca	Romania	Record daily precipitation	32.8 mm (1.3 in)	45 of 100 (Notable)
Tulcea	Romania	Record daily precipitation	48.8 mm (1.9 in)	45 of 100 (Notable)
Chippewa Falls	United States	Record daily precipitation	33.8 mm (1.3 in)	45 of 100 (Notable)
Streator 2SE	United States	Record high minimum temperature	16.7 C (62.1 F)	44 of 100 (Notable)
Xichang	China	Record daily precipitation	26.9 mm (1.1 in)	43 of 100 (Notable)
Kremsmuenster	Austria	Record low maximum temperature	3.6 C (38.5 F)	42 of 100 (Notable)
Hatlestrand	Norway	Record daily precipitation	30.0 mm (1.2 in)	42 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high minimum temperature	16.4 C (61.5 F)	41 of 100 (Notable)
Wilmington	Australia	Record daily precipitation	32.8 mm (1.3 in)	41 of 100 (Notable)
Caltowie	Australia	Record daily precipitation	33.2 mm (1.3 in)	41 of 100 (Notable)
Lindenberg	Germany	Record low minimum temperature	-3.6 C (25.5 F)	41 of 100 (Notable)
Liepaja	Latvia	Record low minimum temperature	-3.9 C (25.0 F)	41 of 100 (Notable)
Lavik	Norway	Record daily precipitation	39.2 mm (1.5 in)	41 of 100 (Notable)
Osijek	Croatia	Record low maximum temperature	4.0 C (39.2 F)	40 of 100 (Notable)
Kon-Kolodez	Russia	Record low minimum temperature	-5.0 C (23.0 F)	40 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record low minimum temperature	-14.0 C (6.8 F)	40 of 100 (Notable)
Liberal	United States	Record high maximum temperature	32.8 C (91.0 F)	40 of 100 (Notable)
Napier Downs	Australia	Record daily precipitation	36.4 mm (1.4 in)	39 of 100 (Notable)
Ovstedal	Norway	Record daily precipitation	51.7 mm (2.0 in)	39 of 100 (Notable)
Rockville	United States	Record high minimum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Euston (Prungle)	Australia	Record daily precipitation	47.0 mm (1.9 in)	38 of 100 (Notable)
Buzau	Romania	Record daily precipitation	37.4 mm (1.5 in)	38 of 100 (Notable)
Dar Es Salaam Airpo	Tanzania	Record daily precipitation	444.5 mm (17.5 in)	37 of 100 (Notable)
Nonning	Australia	Record daily precipitation	27.0 mm (1.1 in)	36 of 100 (Notable)
Whyalla Aero	Australia	Record daily precipitation	36.0 mm (1.4 in)	35 of 100 (Notable)
Laura (Beetaloo Reservoir)	Australia	Record daily precipitation	33.6 mm (1.3 in)	35 of 100 (Notable)
Sarajevo	Bosnia and Herzegovina	Record low maximum temperature	1.4 C (34.5 F)	35 of 100 (Notable)
Haukedal	Norway	Record daily precipitation	37.4 mm (1.5 in)	35 of 100 (Notable)
Eresfjord	Norway	Record daily precipitation	26.4 mm (1.0 in)	35 of 100 (Notable)
Novyj Tor'jal	Russia	Record daily precipitation	31.0 mm (1.2 in)	35 of 100 (Notable)
Schierke	Germany	Record low minimum temperature	-7.7 C (18.1 F)	34 of 100 (Routine)
Szeged	Hungary	Record low maximum temperature	5.1 C (41.2 F)	34 of 100 (Routine)
Bogoroditskoye-Fenino	Russia	Record low minimum temperature	-6.4 C (20.5 F)	34 of 100 (Routine)
Gran Quivira Natl Mon	United States	Record high minimum temperature	12.8 C (55.0 F)	34 of 100 (Routine)

Counts by Type and Timescale

734 records

Records set or tied on 20 April 2017 by type: Highest daily maximum 70, Lowest daily maximum 47, Highest daily minimum 153, Lowest daily minimum 169, Heaviest daily rainfall 288, Heaviest daily snowfall 4, Deepest snow cover 3.

Records on 20 April 2017 by type
Record type	Records
Highest daily maximum	70
Lowest daily maximum	47
Highest daily minimum	153
Lowest daily minimum	169
Heaviest daily rainfall	288
Heaviest daily snowfall	4
Deepest snow cover	3

Records on 20 April 2017 by timescale: all-time 1, monthly 12, daily 721.

How Much Records Were Beaten By

638 broken records

Margins by which the 638 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 110.0. Ties are not counted.

Top 20 by Significance

20 April 2017

Top 20 records on 20 April 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 2017	Ouyen (Post Office), AU	monthly rain	69.8 mm (2.7 in)	24.8 mm (1.0 in)	91 years	83 of 100 (Exceptional)
20 April 2017	Kondoolka, AU	daily rain	29.0 mm (1.1 in)	19.9 mm (0.8 in)	108 years	80 of 100 (Exceptional)
20 April 2017	Susendal, NO	daily rain	25.3 mm (1.0 in)	14.2 mm (0.6 in)	116 years	80 of 100 (Exceptional)
20 April 2017	Yorketown, AU	daily rain	41.2 mm (1.6 in)	33.3 mm (1.3 in)	68 years	70 of 100 (Major)
20 April 2017	Hilltown, AU	daily rain	60.0 mm (2.4 in)	49.6 mm (2.0 in)	66 years	67 of 100 (Major)
20 April 2017	Yardea, AU	daily rain	27.2 mm (1.1 in)	12.5 mm (0.5 in)	122 years	64 of 100 (Major)
20 April 2017	Laura, AU	daily rain	34.4 mm (1.4 in)	15.9 mm (0.6 in)	108 years	60 of 100 (Major)
20 April 2017	Minlaton, AU	daily rain	25.6 mm (1.0 in)	12.4 mm (0.5 in)	121 years	60 of 100 (Major)
20 April 2017	Cluj Napoca, RO	daily rain	31.7 mm (1.2 in)	16.8 mm (0.7 in)	63 years	59 of 100 (Notable)
20 April 2017	Iron Knob (Gilles Downs), AU	daily rain	50.2 mm (2.0 in)	37.6 mm (1.5 in)	27 years	57 of 100 (Notable)
20 April 2017	Kisinev, MD	daily rain	39.9 mm (1.6 in)	15.5 mm (0.6 in)	64 years	56 of 100 (Notable)
20 April 2017	Boigbeat, AU	daily rain	52.0 mm (2.0 in)	34.0 mm (1.3 in)	19 years	55 of 100 (Notable)
20 April 2017	Roberts, KY	daily rain	83.1 mm (3.3 in)	77.3 mm (3.0 in)	35 years	55 of 100 (Notable)
20 April 2017	Nullarbor, AU	daily rain	31.8 mm (1.3 in)	13.5 mm (0.5 in)	87 years	54 of 100 (Notable)
20 April 2017	Gladstone, AU	daily rain	30.4 mm (1.2 in)	9.3 mm (0.37 in)	108 years	53 of 100 (Notable)
20 April 2017	Leova, MD	daily rain	40.9 mm (1.6 in)	28.0 mm (1.1 in)	28 years	53 of 100 (Notable)
20 April 2017	Wirrulla (Pimbena), AU	daily rain	27.0 mm (1.1 in)	17.8 mm (0.7 in)	24 years	50 of 100 (Notable)
20 April 2017	Port Germein, AU	daily rain	28.0 mm (1.1 in)	15.0 mm (0.6 in)	64 years	50 of 100 (Notable)
20 April 2017	Komrat, MD	monthly rain	48.0 mm (1.9 in)	11.7 mm (0.5 in)	38 years	50 of 100 (Notable)
20 April 2017	Birchip Reservoir, AU	daily rain	47.9 mm (1.9 in)	34.3 mm (1.4 in)	19 years	49 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

1807 to 2017

Records set or tied on this calendar date in each year from 1807 to 2017. 2017 had 734 records.

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

Records on 04-20 in each year
Year	Records
1807	3
1817	1
1838	1
1849	2
1851	1
1852	4
1854	1
1858	1
1860	1
1864	1
1865	3
1868	1
1869	1
1870	1
1872	1
1874	3
1875	4
1876	1
1878	2
1880	2
1881	2
1884	1
1885	1
1886	2
1889	1
1891	2
1892	1
1893	6
1894	8
1895	7
1896	3
1897	6
1898	1
1899	1
1901	8
1902	3
1903	14
1904	31
1905	9
1906	12
1907	18
1908	14
1909	22
1910	25
1911	18
1912	12
1913	19
1914	46
1915	45
1916	19
1917	33
1918	42
1919	17
1920	49
1921	27
1922	40
1923	157
1924	113
1925	169
1926	310
1927	442
1928	212
1929	182
1930	87
1931	255
1932	166
1933	279
1934	384
1935	384
1936	311
1937	427
1938	339
1939	158
1940	519
1941	558
1942	223
1943	670
1944	304
1945	391
1946	395
1947	308
1948	493
1949	477
1950	329
1951	690
1952	552
1953	1,071
1954	377
1955	623
1956	384
1957	730
1958	327
1959	563
1960	472
1961	1,078
1962	487
1963	595
1964	749
1965	724
1966	1,174
1967	864
1968	975
1969	382
1970	948
1971	765
1972	531
1973	982
1974	673
1975	344
1976	661
1977	693
1978	800
1979	495
1980	1,539
1981	706
1982	906
1983	1,844
1984	922
1985	1,140
1986	770
1987	1,447
1988	1,144
1989	1,187
1990	1,495
1991	1,075
1992	1,009
1993	772
1994	756
1995	1,351
1996	970
1997	833
1998	1,490
1999	674
2000	931
2001	752
2002	1,081
2003	758
2004	567
2005	707
2006	859
2007	582
2008	1,110
2009	845
2010	693
2011	1,477
2012	726
2013	1,520
2014	384
2015	702
2016	650
2017	734
2018	1,309
2019	1,019
2020	449
2021	1,215
2022	596
2023	828
2024	673
2025	836
2026	533

Download the Data

Data for records on 2017-04-20: 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 20	614
20 to 40	19
40 to 60	3
60 to 80	1
80 to 100	0
100 to 120	1