Weather Records on 20 March 1918

40 weather records were set or tied worldwide on 20 March 1918. Highest significance: Stratford, CA.

Key Facts for 20 March 1918

On 20 March 1918, 40 weather records were set or tied at long-record stations worldwide.
33 were record highs and 2 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 40 daily.
Stratford set a daily record high maximum temperature of 19.4 C (66.9 F) on 20 March 1918.
Across 166 earlier years (1808 to 2026) the same calendar date averaged 458 records.

Record Map

40 stations

40 station records on 20 March 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 March 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Stratford	Canada	Record high maximum temperature	19.4 C (66.9 F)	29 of 100 (Routine)
Armagh	United Kingdom	Record high maximum temperature	14.7 C (58.5 F)	24 of 100 (Routine)
Alicedale	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Galway	Ireland	Record high maximum temperature	17.2 C (63.0 F)	20 of 100 (Routine)
La Crosse Wb City	United States	Record high minimum temperature	7.2 C (45.0 F)	20 of 100 (Routine)
Alice Springs Post Office	Australia	Record low minimum temperature	7.8 C (46.0 F)	18 of 100 (Routine)
Madison Wb City	United States	Record high maximum temperature	22.2 C (72.0 F)	18 of 100 (Routine)
Moose Factory	Canada	Record high maximum temperature	7.8 C (46.0 F)	16 of 100 (Routine)
Stratford	Canada	Record high minimum temperature	5.0 C (41.0 F)	15 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record high maximum temperature	14.4 C (57.9 F)	15 of 100 (Routine)
Milwaukee Wb City	United States	Record high maximum temperature	20.6 C (69.1 F)	15 of 100 (Routine)
Toledo Blade	United States	Record high minimum temperature	10.0 C (50.0 F)	14 of 100 (Routine)
Milwaukee Wb City	United States	Record high minimum temperature	8.9 C (48.0 F)	14 of 100 (Routine)
Dubuque River	United States	Record high maximum temperature	23.3 C (73.9 F)	14 of 100 (Routine)
Darwin Post Office	Australia	Record low minimum temperature	21.4 C (70.5 F)	13 of 100 (Routine)
Harnosand	Sweden	Record high minimum temperature	1.0 C (33.8 F)	13 of 100 (Routine)
Green Bay	United States	Record high maximum temperature	18.3 C (64.9 F)	13 of 100 (Routine)
La Crosse Wb City	United States	Record high maximum temperature	21.7 C (71.1 F)	12 of 100 (Routine)
Madison Wb City	United States	Record high minimum temperature	8.3 C (46.9 F)	12 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high minimum temperature	1.7 C (35.1 F)	11 of 100 (Routine)
Toledo Blade	United States	Record high maximum temperature	23.3 C (73.9 F)	11 of 100 (Routine)
Port Arthur	Canada	Record high minimum temperature	1.1 C (34.0 F)	10 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record high minimum temperature	4.6 C (40.3 F)	10 of 100 (Routine)
Sheffield	United Kingdom	Record high maximum temperature	17.2 C (63.0 F)	10 of 100 (Routine)
Harrisburg - Coop	United States	Record high maximum temperature	21.1 C (70.0 F)	10 of 100 (Routine)
Port Stanley	Canada	Record high maximum temperature	12.8 C (55.0 F)	9 of 100 (Routine)
Alma	United States	Record high maximum temperature	20.0 C (68.0 F)	9 of 100 (Routine)
Oudtshoorn	South Africa	Record daily precipitation	13.5 mm (0.5 in)	8 of 100 (Routine)
Hogsback (Bos)	South Africa	Record daily precipitation	42.4 mm (1.7 in)	8 of 100 (Routine)
Escanaba	United States	Record high maximum temperature	12.2 C (54.0 F)	8 of 100 (Routine)
London South	Canada	Record high maximum temperature	21.7 C (71.1 F)	7 of 100 (Routine)
Dubuque River	United States	Record high minimum temperature	6.7 C (44.1 F)	7 of 100 (Routine)
Huron Rgnl AP	United States	Record high minimum temperature	4.4 C (39.9 F)	5 of 100 (Routine)
Barkerville	Canada	Record daily precipitation	7.6 mm (0.30 in)	2 of 100 (Routine)
Barkerville	Canada	Record daily snowfall	7.6 cm (3.0 in)	2 of 100 (Routine)
Toronto	Canada	Record high maximum temperature	19.4 C (66.9 F)	2 of 100 (Routine)
Magdeburg	Germany	Record high minimum temperature	6.8 C (44.2 F)	2 of 100 (Routine)
Stornoway Airport	United Kingdom	Record high maximum temperature	12.2 C (54.0 F)	1 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	17.8 C (64.0 F)	1 of 100 (Routine)
Escanaba	United States	Record high minimum temperature	1.1 C (34.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

40 records

Records set or tied on 20 March 1918 by type: Highest daily maximum 20, Highest daily minimum 13, Lowest daily minimum 2, Heaviest daily rainfall 4, Heaviest daily snowfall 1.

Records on 20 March 1918 by type
Record type	Records
Highest daily maximum	20
Lowest daily maximum	0
Highest daily minimum	13
Lowest daily minimum	2
Heaviest daily rainfall	4
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 20 March 1918 by timescale: all-time 0, monthly 0, daily 40.

How Much Records Were Beaten By

33 broken records

Margins by which the 33 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 9.2. Ties are not counted.

Top 20 by Significance

20 March 1918

Top 20 records on 20 March 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 March 1918	Stratford, CA	daily high max	19.4 C (66.9 F)	5.5 C (9.9 F)	52 years	29 of 100 (Routine)
20 March 1918	Armagh, GB	daily high max	14.7 C (58.5 F)	0.1 C (0.2 F)	59 years	24 of 100 (Routine)
20 March 1918	Alicedale, ZA	daily rain	19.1 mm (0.8 in)	9.2 mm (0.36 in)	27 years	20 of 100 (Routine)
20 March 1918	Galway, IE	daily high max	17.2 C (63.0 F)	1.1 C (2.0 F)	37 years	20 of 100 (Routine)
20 March 1918	La Crosse Wb City, US	daily high min	7.2 C (45.0 F)	4.4 C (7.9 F)	35 years	20 of 100 (Routine)
20 March 1918	Alice Springs Post Office, AU	daily low min	7.8 C (46.0 F)	1.6 C (2.9 F)	33 years	18 of 100 (Routine)
20 March 1918	Madison Wb City, US	daily high max	22.2 C (72.0 F)	7.2 C (13.0 F)	7 years	18 of 100 (Routine)
20 March 1918	Moose Factory, CA	daily high max	7.8 C (46.0 F)	3.9 C (7.0 F)	24 years	16 of 100 (Routine)
20 March 1918	Stratford, CA	daily high min	5.0 C (41.0 F)	3.3 C (5.9 F)	20 years	15 of 100 (Routine)
20 March 1918	Dublin Phoenix Park, IE	daily high max	14.4 C (57.9 F)	0.4 C (0.7 F)	31 years	15 of 100 (Routine)
20 March 1918	Milwaukee Wb City, US	daily high max	20.6 C (69.1 F)	5.6 C (10.1 F)	7 years	15 of 100 (Routine)
20 March 1918	Toledo Blade, US	daily high min	10.0 C (50.0 F)	3.3 C (5.9 F)	15 years	14 of 100 (Routine)
20 March 1918	Milwaukee Wb City, US	daily high min	8.9 C (48.0 F)	4.5 C (8.1 F)	7 years	14 of 100 (Routine)
20 March 1918	Dubuque River, US	daily high max	23.3 C (73.9 F)	6.1 C (11.0 F)	7 years	14 of 100 (Routine)
20 March 1918	Darwin Post Office, AU	daily low min	21.4 C (70.5 F)	0.8 C (1.4 F)	15 years	13 of 100 (Routine)
20 March 1918	Harnosand, SE	daily high min	1.0 C (33.8 F)	1.5 C (2.7 F)	27 years	13 of 100 (Routine)
20 March 1918	Green Bay, US	daily high max	18.3 C (64.9 F)	5.0 C (9.0 F)	7 years	13 of 100 (Routine)
20 March 1918	La Crosse Wb City, US	daily high max	21.7 C (71.1 F)	4.5 C (8.1 F)	7 years	12 of 100 (Routine)
20 March 1918	Madison Wb City, US	daily high min	8.3 C (46.9 F)	3.3 C (5.9 F)	7 years	12 of 100 (Routine)
20 March 1918	Morris W Cntrl Rsch & Outreach, US	daily high min	1.7 C (35.1 F)	1.1 C (2.0 F)	23 years	11 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

1808 to 1918

Records set or tied on this calendar date in each year from 1808 to 1918. 1918 had 40 records.

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

Records on 03-20 in each year
Year	Records
1808	3
1818	1
1822	2
1830	1
1834	1
1838	1
1845	1
1849	3
1850	1
1852	1
1853	1
1858	1
1862	1
1865	11
1866	1
1870	1
1872	2
1873	1
1874	2
1875	2
1876	2
1879	2
1881	2
1882	2
1883	1
1884	2
1885	3
1886	2
1887	3
1888	5
1889	5
1890	1
1892	1
1893	2
1894	5
1895	2
1896	5
1897	2
1898	5
1899	9
1900	8
1901	6
1902	13
1903	34
1904	12
1905	6
1906	16
1907	17
1908	4
1909	6
1910	20
1911	35
1912	12
1913	42
1914	51
1915	22
1916	46
1917	49
1918	40
1919	31
1920	52
1921	93
1922	49
1923	275
1924	76
1925	121
1926	103
1927	298
1928	258
1929	56
1930	86
1931	492
1932	117
1933	354
1934	243
1935	408
1936	245
1937	220
1938	394
1939	240
1940	486
1941	390
1942	325
1943	378
1944	611
1945	636
1946	435
1947	299
1948	697
1949	352
1950	367
1951	788
1952	589
1953	350
1954	303
1955	719
1956	527
1957	516
1958	467
1959	293
1960	594
1961	332
1962	363
1963	447
1964	525
1965	2,020
1966	367
1967	784
1968	819
1969	374
1970	912
1971	377
1972	635
1973	422
1974	755
1975	932
1976	989
1977	352
1978	863
1979	712
1980	458
1981	712
1982	1,189
1983	1,179
1984	775
1985	636
1986	666
1987	867
1988	1,044
1989	793
1990	1,496
1991	1,205
1992	654
1993	1,014
1994	1,040
1995	857
1996	1,147
1997	1,801
1998	963
1999	793
2000	894
2001	1,048
2002	1,698
2003	1,166
2004	1,701
2005	602
2006	1,353
2007	1,053
2008	993
2009	445
2010	1,264
2011	1,003
2012	3,051
2013	762
2014	800
2015	521
2016	450
2017	1,331
2018	587
2019	530
2020	1,006
2021	487
2022	667
2023	975
2024	520
2025	848
2026	3,126

Download the Data

Data for records on 1918-03-20: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 2	17
2 to 4	6
4 to 6	7
6 to 8	2
8 to 10	1