Weather Records on 18 April 1920

64 weather records were set or tied worldwide on 18 April 1920. Highest significance: Sydney, CA.

Key Facts for 18 April 1920

On 18 April 1920, 64 weather records were set or tied at long-record stations worldwide.
45 were record highs and 8 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 60 daily.
Sydney set a daily record snowfall of 30.5 cm (12.0 in) on 18 April 1920.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 470 records.

Record Map

64 stations

64 station records on 18 April 1920 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1920: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sydney	Canada	Record daily snowfall	30.5 cm (12.0 in)	43 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record high minimum temperature	13.6 C (56.5 F)	41 of 100 (Notable)
Sydney (Observatory Hill)	Australia	Record low minimum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record low maximum temperature	17.2 C (63.0 F)	24 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record high minimum temperature	12.0 C (53.6 F)	24 of 100 (Routine)
Salzburg	Austria	Record high minimum temperature	14.8 C (58.6 F)	22 of 100 (Routine)
Olands Norra Udde	Sweden	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Tranebjerg	Denmark	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Visby_Flygplats	Sweden	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Wien	Austria	Record high maximum temperature	24.8 C (76.6 F)	20 of 100 (Routine)
Halifax	Canada	Record daily snowfall	7.6 cm (3.0 in)	20 of 100 (Routine)
Zagreb-Gric	Croatia	Record high maximum temperature	28.0 C (82.4 F)	20 of 100 (Routine)
Bourke Post Office	Australia	Record low maximum temperature	21.7 C (71.1 F)	19 of 100 (Routine)
Sonnblick	Austria	Record high minimum temperature	-1.6 C (29.1 F)	18 of 100 (Routine)
Chicoutimi	Canada	Record high minimum temperature	7.8 C (46.0 F)	18 of 100 (Routine)
Magdeburg	Germany	Record high minimum temperature	11.9 C (53.4 F)	17 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record daily precipitation	23.9 mm (0.9 in)	17 of 100 (Routine)
Wien	Austria	Record high minimum temperature	11.9 C (53.4 F)	16 of 100 (Routine)
Cottbus	Germany	Record high minimum temperature	12.3 C (54.1 F)	16 of 100 (Routine)
Kirchdorf/Poel	Germany	Record high minimum temperature	9.0 C (48.2 F)	16 of 100 (Routine)
Vasteras-Hasslo	Sweden	Record high minimum temperature	6.0 C (42.8 F)	16 of 100 (Routine)
Little Rock St Capitol	United States	Record high minimum temperature	21.7 C (71.1 F)	16 of 100 (Routine)
Sydney	Canada	Record daily precipitation	30.5 mm (1.2 in)	15 of 100 (Routine)
Berlin-Dahlem	Germany	Record high minimum temperature	13.0 C (55.4 F)	15 of 100 (Routine)
Tobolsk	Russia	Record high minimum temperature	8.9 C (48.0 F)	15 of 100 (Routine)
Waren	Germany	Record high minimum temperature	9.8 C (49.6 F)	14 of 100 (Routine)
Pine Bluff	United States	Record high minimum temperature	21.1 C (70.0 F)	14 of 100 (Routine)
Cairns Post Office	Australia	Record low minimum temperature	17.8 C (64.0 F)	13 of 100 (Routine)
Kremsmuenster	Austria	Record high minimum temperature	11.7 C (53.1 F)	13 of 100 (Routine)
Hohenpeissenberg	Germany	Record high minimum temperature	9.9 C (49.8 F)	13 of 100 (Routine)
Kirov	Russia	Record high minimum temperature	7.4 C (45.3 F)	13 of 100 (Routine)
Kiev	Ukraine	Record high maximum temperature	25.1 C (77.2 F)	13 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record high minimum temperature	10.8 C (51.4 F)	12 of 100 (Routine)
Tuttlingen	Germany	Record daily precipitation	17.2 mm (0.7 in)	12 of 100 (Routine)
Zagreb-Gric	Croatia	Record high minimum temperature	13.5 C (56.3 F)	12 of 100 (Routine)
Kvikkjokk-Arrenjarka	Sweden	Record high minimum temperature	3.0 C (37.4 F)	12 of 100 (Routine)
Gospic	Croatia	Record daily precipitation	36.1 mm (1.4 in)	11 of 100 (Routine)
St. Petersburg	Russia	Record high minimum temperature	6.7 C (44.1 F)	11 of 100 (Routine)
Nidingen A	Sweden	Record daily precipitation	10.1 mm (0.4 in)	11 of 100 (Routine)
Astoria	United States	Record low minimum temperature	2.8 C (37.0 F)	11 of 100 (Routine)
Salzburg	Austria	Record high maximum temperature	24.0 C (75.2 F)	10 of 100 (Routine)
Lubeck-Werft	Germany	Record high minimum temperature	8.9 C (48.0 F)	10 of 100 (Routine)
Ekaterinburg	Russia	Record high maximum temperature	20.0 C (68.0 F)	10 of 100 (Routine)
Karlsruhe	Germany	Record high minimum temperature	11.6 C (52.9 F)	9 of 100 (Routine)
Troicko-Pecherskoe	Russia	Record high minimum temperature	5.9 C (42.6 F)	9 of 100 (Routine)
Oktjabrskij-Gorodok	Russia	Record high minimum temperature	8.5 C (47.3 F)	9 of 100 (Routine)
Kremsmuenster	Austria	Record high maximum temperature	23.6 C (74.5 F)	8 of 100 (Routine)
Sonnblick	Austria	Record high maximum temperature	2.0 C (35.6 F)	8 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record high minimum temperature	10.2 C (50.4 F)	8 of 100 (Routine)
Ekaterinburg	Russia	Record high minimum temperature	5.1 C (41.2 F)	8 of 100 (Routine)
Parnu	Estonia	Record high minimum temperature	5.0 C (41.0 F)	7 of 100 (Routine)
Marseille Obs. Palais-Lonchamp	France	Record daily precipitation	25.4 mm (1.0 in)	7 of 100 (Routine)
Plauen	Germany	Record high minimum temperature	10.7 C (51.3 F)	7 of 100 (Routine)
Orebro	Sweden	Record high minimum temperature	4.7 C (40.5 F)	6 of 100 (Routine)
Montgomery Wb City	United States	Record high minimum temperature	21.7 C (71.1 F)	6 of 100 (Routine)
Cottbus	Germany	Record high maximum temperature	24.3 C (75.7 F)	5 of 100 (Routine)
Perm	Russia	Record high minimum temperature	7.2 C (45.0 F)	5 of 100 (Routine)
Santa Fe	United States	Record low maximum temperature	1.1 C (34.0 F)	4 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low minimum temperature	3.3 C (37.9 F)	3 of 100 (Routine)
Bourke Post Office	Australia	Record low minimum temperature	5.0 C (41.0 F)	2 of 100 (Routine)

Counts by Type and Timescale

64 records

Records set or tied on 18 April 1920 by type: Highest daily maximum 9, Lowest daily maximum 3, Highest daily minimum 36, Lowest daily minimum 5, Heaviest daily rainfall 9, Heaviest daily snowfall 2.

Records on 18 April 1920 by type
Record type	Records
Highest daily maximum	9
Lowest daily maximum	3
Highest daily minimum	36
Lowest daily minimum	5
Heaviest daily rainfall	9
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 18 April 1920 by timescale: all-time 0, monthly 4, daily 60.

How Much Records Were Beaten By

56 broken records

Margins by which the 56 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 170.0. Ties are not counted.

Top 20 by Significance

18 April 1920

Top 20 records on 18 April 1920 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1920	Sydney, CA	daily snowfall	30.5 cm (12.0 in)	17.0 cm (6.7 in)	39 years	43 of 100 (Notable)
18 April 1920	Praha-Klementinum, CZ	daily high min	13.6 C (56.5 F)	0.6 C (1.1 F)	119 years	41 of 100 (Notable)
18 April 1920	Sydney (Observatory Hill), AU	daily low min	8.9 C (48.0 F)	1.2 C (2.2 F)	58 years	27 of 100 (Routine)
18 April 1920	Deniliquin (Wilkinson St), AU	daily low max	17.2 C (63.0 F)	0.7 C (1.3 F)	58 years	24 of 100 (Routine)
18 April 1920	Munchen-Nymphenburg, DE	daily high min	12.0 C (53.6 F)	3.1 C (5.6 F)	39 years	24 of 100 (Routine)
18 April 1920	Salzburg, AT	daily high min	14.8 C (58.6 F)	3.6 C (6.5 F)	29 years	22 of 100 (Routine)
18 April 1920	Olands Norra Udde, SE	monthly rain	22.6 mm (0.9 in)	4.2 mm (0.17 in)	31 years	20 of 100 (Routine)
18 April 1920	Tranebjerg, DK	daily rain	16.0 mm (0.6 in)	3.7 mm (0.15 in)	43 years	20 of 100 (Routine)
18 April 1920	Visby_Flygplats, SE	daily rain	22.4 mm (0.9 in)	7.0 mm (0.28 in)	12 years	20 of 100 (Routine)
18 April 1920	Wien, AT	daily high max	24.8 C (76.6 F)	1.6 C (2.9 F)	39 years	20 of 100 (Routine)
18 April 1920	Halifax, CA	daily snowfall	7.6 cm (3.0 in)	1.0 cm (0.4 in)	45 years	20 of 100 (Routine)
18 April 1920	Zagreb-Gric, HR	monthly high max	28.0 C (82.4 F)	2.2 C (4.0 F)	6 years	20 of 100 (Routine)
18 April 1920	Bourke Post Office, AU	daily low max	21.7 C (71.1 F)	0.5 C (0.9 F)	43 years	19 of 100 (Routine)
18 April 1920	Sonnblick, AT	monthly high min	-1.6 C (29.1 F)	0.6 C (1.1 F)	16 years	18 of 100 (Routine)
18 April 1920	Chicoutimi, CA	daily high min	7.8 C (46.0 F)	5.0 C (9.0 F)	19 years	18 of 100 (Routine)
18 April 1920	Magdeburg, DE	daily high min	11.9 C (53.4 F)	3.1 C (5.6 F)	16 years	17 of 100 (Routine)
18 April 1920	Lincoln UNIV Pwr Plt, US	daily rain	23.9 mm (0.9 in)	7.6 mm (0.30 in)	21 years	17 of 100 (Routine)
18 April 1920	Wien, AT	daily high min	11.9 C (53.4 F)	1.0 C (1.8 F)	25 years	16 of 100 (Routine)
18 April 1920	Cottbus, DE	daily high min	12.3 C (54.1 F)	1.8 C (3.2 F)	29 years	16 of 100 (Routine)
18 April 1920	Kirchdorf/Poel, DE	daily high min	9.0 C (48.2 F)	1.8 C (3.2 F)	25 years	16 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

1793 to 1920

Records set or tied on this calendar date in each year from 1793 to 1920. 1920 had 64 records.

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

Records on 04-18 in each year
Year	Records
1793	1
1807	2
1815	1
1838	1
1847	1
1849	1
1851	1
1852	3
1854	3
1855	1
1865	4
1867	1
1870	1
1871	1
1875	4
1877	2
1878	1
1879	3
1880	2
1884	2
1886	2
1887	3
1888	1
1889	1
1890	2
1891	1
1892	3
1893	5
1894	7
1895	2
1896	3
1897	5
1898	8
1899	2
1900	2
1901	6
1902	5
1903	11
1904	9
1905	12
1906	18
1907	17
1908	37
1909	19
1910	19
1911	25
1912	21
1913	26
1914	38
1915	31
1916	22
1917	40
1918	76
1919	16
1920	64
1921	58
1922	85
1923	107
1924	101
1925	154
1926	322
1927	391
1928	323
1929	126
1930	113
1931	173
1932	326
1933	211
1934	391
1935	264
1936	483
1937	477
1938	711
1939	525
1940	322
1941	496
1942	287
1943	298
1944	259
1945	371
1946	357
1947	444
1948	932
1949	345
1950	244
1951	658
1952	536
1953	1,322
1954	442
1955	817
1956	467
1957	629
1958	370
1959	468
1960	320
1961	520
1962	484
1963	662
1964	449
1965	363
1966	776
1967	882
1968	867
1969	795
1970	771
1971	1,106
1972	470
1973	953
1974	326
1975	751
1976	1,309
1977	717
1978	803
1979	841
1980	842
1981	708
1982	616
1983	2,082
1984	625
1985	1,119
1986	622
1987	1,068
1988	936
1989	625
1990	1,368
1991	780
1992	702
1993	730
1994	1,218
1995	1,601
1996	826
1997	1,256
1998	1,011
1999	1,428
2000	912
2001	1,487
2002	2,084
2003	969
2004	846
2005	622
2006	1,262
2007	675
2008	913
2009	624
2010	478
2011	1,122
2012	744
2013	2,509
2014	534
2015	519
2016	973
2017	588
2018	1,202
2019	601
2020	770
2021	592
2022	1,013
2023	739
2024	641
2025	997
2026	498

Download the Data

Data for records on 1920-04-18: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 25	55
25 to 50	0
50 to 75	0
75 to 100	0
100 to 125	0
125 to 150	0
150 to 175	1