Weather Records on 21 February 1918

80 weather records were set or tied worldwide on 21 February 1918. Highest significance: Southampton, CA.

Key Facts for 21 February 1918

On 21 February 1918, 80 weather records were set or tied at long-record stations worldwide.
1 were record highs and 60 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 80 daily.
Southampton set a daily record low maximum temperature of -17.2 C (1.0 F) on 21 February 1918.
Across 164 earlier years (1795 to 2026) the same calendar date averaged 504 records.

Record Map

80 stations

80 station records on 21 February 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 February 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Southampton	Canada	Record low maximum temperature	-17.2 C (1.0 F)	29 of 100 (Routine)
Toronto	Canada	Record low maximum temperature	-14.4 C (6.1 F)	23 of 100 (Routine)
Owen Sound	Canada	Record low maximum temperature	-17.8 C (0.0 F)	22 of 100 (Routine)
Gunnedah Pool	Australia	Record low minimum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Port Stanley	Canada	Record low maximum temperature	-13.3 C (8.1 F)	21 of 100 (Routine)
Kristianstad	Sweden	Record daily precipitation	12.0 mm (0.5 in)	20 of 100 (Routine)
Oranjerivier (Sar)	South Africa	Record daily precipitation	27.9 mm (1.1 in)	20 of 100 (Routine)
Renfrew	Canada	Record low maximum temperature	-18.9 C (-2.0 F)	19 of 100 (Routine)
Buffalo	United States	Record low maximum temperature	-16.1 C (3.0 F)	19 of 100 (Routine)
Mathoura (Mathoura Station)	Australia	Record daily precipitation	25.9 mm (1.0 in)	18 of 100 (Routine)
Moose Factory	Canada	Record low maximum temperature	-20.6 C (-5.1 F)	17 of 100 (Routine)
Welland	Canada	Record low maximum temperature	-13.9 C (7.0 F)	17 of 100 (Routine)
Guelph Oac	Canada	Record low maximum temperature	-16.1 C (3.0 F)	17 of 100 (Routine)
Stratford	Canada	Record low maximum temperature	-13.9 C (7.0 F)	17 of 100 (Routine)
Richmond C/K (Tnk)	South Africa	Record daily precipitation	7.6 mm (0.30 in)	17 of 100 (Routine)
Warroo	Australia	Record daily precipitation	24.1 mm (0.9 in)	16 of 100 (Routine)
Peterborough	Canada	Record low maximum temperature	-17.8 C (0.0 F)	16 of 100 (Routine)
Visby_Flygplats	Sweden	Record low maximum temperature	-6.0 C (21.2 F)	16 of 100 (Routine)
Dubuque River	United States	Record low minimum temperature	-22.8 C (-9.0 F)	16 of 100 (Routine)
Hano_A	Sweden	Record daily precipitation	10.2 mm (0.4 in)	15 of 100 (Routine)
Carcoar	Australia	Record daily precipitation	6.1 mm (0.24 in)	14 of 100 (Routine)
Bad Muskau	Germany	Record daily precipitation	10.7 mm (0.4 in)	14 of 100 (Routine)
Halmstad	Sweden	Record low maximum temperature	-3.0 C (26.6 F)	14 of 100 (Routine)
Boras	Sweden	Record low maximum temperature	-5.5 C (22.1 F)	14 of 100 (Routine)
Milwaukee Wb City	United States	Record low maximum temperature	-11.7 C (10.9 F)	14 of 100 (Routine)
Ny City Cntrl Park	United States	Record low maximum temperature	-7.8 C (18.0 F)	14 of 100 (Routine)
Cudal Post Office	Australia	Record daily precipitation	1.5 mm (0.06 in)	13 of 100 (Routine)
Port Dover	Canada	Record low maximum temperature	-15.6 C (3.9 F)	13 of 100 (Routine)
Zametchino	Russia	Record daily precipitation	5.0 mm (0.20 in)	13 of 100 (Routine)
Alma	United States	Record low maximum temperature	-11.7 C (10.9 F)	13 of 100 (Routine)
World Trade Ctr	United States	Record low maximum temperature	-8.3 C (17.1 F)	13 of 100 (Routine)
Escanaba	United States	Record low maximum temperature	-17.8 C (0.0 F)	13 of 100 (Routine)
Green Bay	United States	Record low maximum temperature	-15.6 C (3.9 F)	13 of 100 (Routine)
Huron Rgnl AP	United States	Record low minimum temperature	-30.0 C (-22.0 F)	13 of 100 (Routine)
London South	Canada	Record low maximum temperature	-12.8 C (9.0 F)	12 of 100 (Routine)
Buffalo	United States	Record low minimum temperature	-20.0 C (-4.0 F)	12 of 100 (Routine)
Escanaba	United States	Record low minimum temperature	-26.7 C (-16.1 F)	12 of 100 (Routine)
Beatrice	Canada	Record low maximum temperature	-19.4 C (-2.9 F)	11 of 100 (Routine)
Lucknow	Canada	Record low maximum temperature	-16.7 C (1.9 F)	11 of 100 (Routine)
Woodstock	Canada	Record low maximum temperature	-16.7 C (1.9 F)	11 of 100 (Routine)
Green Bay	United States	Record low minimum temperature	-25.0 C (-13.0 F)	11 of 100 (Routine)
Dubuque River	United States	Record low maximum temperature	-11.1 C (12.0 F)	11 of 100 (Routine)
Campbelltown 1	Australia	Record daily precipitation	14.0 mm (0.6 in)	10 of 100 (Routine)
Stony Mountain	Canada	Record low maximum temperature	-22.8 C (-9.0 F)	10 of 100 (Routine)
Gravenhurst	Canada	Record low maximum temperature	-18.9 C (-2.0 F)	10 of 100 (Routine)
Alton	Canada	Record low maximum temperature	-16.7 C (1.9 F)	10 of 100 (Routine)
Lindsay	Canada	Record low maximum temperature	-18.3 C (-0.9 F)	10 of 100 (Routine)
Little Rock St Capitol	United States	Record low maximum temperature	-0.6 C (30.9 F)	10 of 100 (Routine)
Concordia ASOS	United States	Record low minimum temperature	-19.4 C (-2.9 F)	10 of 100 (Routine)
Inverell Comparison	Australia	Record low minimum temperature	9.4 C (48.9 F)	9 of 100 (Routine)
Stonecliffe	Canada	Record low maximum temperature	-20.0 C (-4.0 F)	9 of 100 (Routine)
Hamilton	Canada	Record low maximum temperature	-13.9 C (7.0 F)	9 of 100 (Routine)
Haliburton A	Canada	Record low maximum temperature	-17.8 C (0.0 F)	9 of 100 (Routine)
Harrisburg - Coop	United States	Record low maximum temperature	-7.2 C (19.0 F)	9 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record low minimum temperature	-22.8 C (-9.0 F)	9 of 100 (Routine)
Irkutsk	Russia	Record high minimum temperature	-10.2 C (13.6 F)	8 of 100 (Routine)
Blayney Post Office	Australia	Record daily precipitation	3.6 mm (0.14 in)	7 of 100 (Routine)
Coldwater	Canada	Record low maximum temperature	-18.9 C (-2.0 F)	7 of 100 (Routine)
Parry Sound	Canada	Record low maximum temperature	-17.8 C (0.0 F)	7 of 100 (Routine)
Lugansk	Ukraine	Record daily precipitation	2.6 mm (0.10 in)	7 of 100 (Routine)

Counts by Type and Timescale

80 records

Records set or tied on 21 February 1918 by type: Lowest daily maximum 47, Highest daily minimum 1, Lowest daily minimum 13, Heaviest daily rainfall 19.

Records on 21 February 1918 by type
Record type	Records
Highest daily maximum	0
Lowest daily maximum	47
Highest daily minimum	1
Lowest daily minimum	13
Heaviest daily rainfall	19
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 February 1918 by timescale: all-time 0, monthly 0, daily 80.

How Much Records Were Beaten By

71 broken records

Margins by which the 71 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 18.5. Ties are not counted.

Top 20 by Significance

21 February 1918

Top 20 records on 21 February 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 February 1918	Southampton, CA	daily low max	-17.2 C (1.0 F)	7.8 C (14.0 F)	42 years	29 of 100 (Routine)
21 February 1918	Toronto, CA	daily low max	-14.4 C (6.1 F)	1.6 C (2.9 F)	47 years	23 of 100 (Routine)
21 February 1918	Owen Sound, CA	daily low max	-17.8 C (0.0 F)	9.5 C (17.1 F)	11 years	22 of 100 (Routine)
21 February 1918	Gunnedah Pool, AU	daily low min	12.2 C (54.0 F)	2.2 C (4.0 F)	36 years	21 of 100 (Routine)
21 February 1918	Port Stanley, CA	daily low max	-13.3 C (8.1 F)	4.4 C (7.9 F)	32 years	21 of 100 (Routine)
21 February 1918	Kristianstad, SE	daily rain	12.0 mm (0.5 in)	3.2 mm (0.13 in)	38 years	20 of 100 (Routine)
21 February 1918	Oranjerivier (Sar), ZA	daily rain	27.9 mm (1.1 in)	8.8 mm (0.35 in)	23 years	20 of 100 (Routine)
21 February 1918	Renfrew, CA	daily low max	-18.9 C (-2.0 F)	5.0 C (9.0 F)	31 years	19 of 100 (Routine)
21 February 1918	Buffalo, US	daily low max	-16.1 C (3.0 F)	4.4 C (7.9 F)	32 years	19 of 100 (Routine)
21 February 1918	Mathoura (Mathoura Station), AU	daily rain	25.9 mm (1.0 in)	11.9 mm (0.5 in)	21 years	18 of 100 (Routine)
21 February 1918	Moose Factory, CA	daily low max	-20.6 C (-5.1 F)	2.3 C (4.1 F)	38 years	17 of 100 (Routine)
21 February 1918	Welland, CA	daily low max	-13.9 C (7.0 F)	2.8 C (5.0 F)	32 years	17 of 100 (Routine)
21 February 1918	Guelph Oac, CA	daily low max	-16.1 C (3.0 F)	7.2 C (13.0 F)	11 years	17 of 100 (Routine)
21 February 1918	Stratford, CA	daily low max	-13.9 C (7.0 F)	2.2 C (4.0 F)	32 years	17 of 100 (Routine)
21 February 1918	Richmond C/K (Tnk), ZA	daily rain	7.6 mm (0.30 in)	2.5 mm (0.10 in)	37 years	17 of 100 (Routine)
21 February 1918	Warroo, AU	daily rain	24.1 mm (0.9 in)	18.5 mm (0.7 in)	2 years	16 of 100 (Routine)
21 February 1918	Peterborough, CA	daily low max	-17.8 C (0.0 F)	5.6 C (10.1 F)	11 years	16 of 100 (Routine)
21 February 1918	Visby_Flygplats, SE	daily low max	-6.0 C (21.2 F)	1.5 C (2.7 F)	28 years	16 of 100 (Routine)
21 February 1918	Dubuque River, US	daily low min	-22.8 C (-9.0 F)	0.6 C (1.1 F)	42 years	16 of 100 (Routine)
21 February 1918	Hano_A, SE	daily rain	10.2 mm (0.4 in)	1.8 mm (0.07 in)	19 years	15 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

1795 to 1918

Records set or tied on this calendar date in each year from 1795 to 1918. 1918 had 80 records.

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

Records on 02-21 in each year
Year	Records
1795	1
1804	1
1810	3
1814	3
1838	1
1845	1
1846	2
1847	1
1849	2
1850	1
1851	1
1855	1
1856	1
1860	1
1861	1
1862	2
1870	2
1875	2
1876	1
1879	1
1880	2
1881	1
1882	1
1883	1
1884	1
1885	1
1886	3
1888	2
1889	4
1890	2
1891	1
1893	9
1894	2
1895	2
1896	1
1897	5
1898	14
1899	3
1900	1
1901	11
1902	8
1903	13
1904	12
1905	6
1906	51
1907	18
1908	12
1909	28
1910	26
1911	24
1912	26
1913	29
1914	25
1915	52
1916	82
1917	415
1918	80
1919	47
1920	23
1921	96
1922	157
1923	40
1924	84
1925	209
1926	101
1927	191
1928	81
1929	403
1930	1,334
1931	197
1932	159
1933	229
1934	423
1935	300
1936	617
1937	699
1938	181
1939	586
1940	159
1941	224
1942	552
1943	460
1944	313
1945	621
1946	149
1947	458
1948	511
1949	889
1950	492
1951	573
1952	356
1953	1,238
1954	958
1955	857
1956	460
1957	709
1958	993
1959	383
1960	493
1961	831
1962	590
1963	1,022
1964	357
1965	275
1966	574
1967	312
1968	1,177
1969	658
1970	545
1971	787
1972	717
1973	790
1974	634
1975	655
1976	845
1977	1,362
1978	1,382
1979	1,212
1980	837
1981	1,600
1982	1,074
1983	608
1984	518
1985	837
1986	1,341
1987	658
1988	633
1989	866
1990	1,971
1991	680
1992	418
1993	1,540
1994	980
1995	1,267
1996	1,742
1997	1,806
1998	1,100
1999	552
2000	812
2001	583
2002	934
2003	1,253
2004	629
2005	840
2006	801
2007	747
2008	1,131
2009	622
2010	1,156
2011	1,379
2012	540
2013	845
2014	881
2015	1,773
2016	1,151
2017	1,828
2018	2,891
2019	1,330
2020	547
2021	879
2022	734
2023	677
2024	648
2025	1,776
2026	552

Download the Data

Data for records on 1918-02-21: 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 2026-10-14 (14 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 3	38
3 to 5	23
5 to 8	5
8 to 10	3
10 to 13	1
13 to 15	0
15 to 18	0
18 to 20	1