Weather Records on 18 March 1921

66 weather records were set or tied worldwide on 18 March 1921. Highest significance: Daly Waters, AU.

Key Facts for 18 March 1921

On 18 March 1921, 66 weather records were set or tied at long-record stations worldwide.
48 were record highs and 3 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 64 daily.
Daly Waters set a daily record precipitation of 77.0 mm (3.0 in) on 18 March 1921.
Across 160 earlier years (1806 to 2026) the same calendar date averaged 480 records.

Record Map

66 stations

66 station records on 18 March 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 March 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Daly Waters	Australia	Record daily precipitation	77.0 mm (3.0 in)	36 of 100 (Notable)
Newport	United States	Record daily precipitation	46.7 mm (1.8 in)	27 of 100 (Routine)
Vanersborg	Sweden	Record high maximum temperature	12.5 C (54.5 F)	25 of 100 (Routine)
Pine Creek	Australia	Record daily precipitation	51.8 mm (2.0 in)	24 of 100 (Routine)
Cooktown Post Office	Australia	Record daily precipitation	209.8 mm (8.3 in)	24 of 100 (Routine)
Vestervig	Denmark	Record high maximum temperature	11.6 C (52.9 F)	21 of 100 (Routine)
Jimbour State School	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Katherine Council	Australia	Record daily precipitation	118.1 mm (4.6 in)	20 of 100 (Routine)
Visby_Flygplats	Sweden	Record high maximum temperature	11.5 C (52.7 F)	20 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record high maximum temperature	25.9 C (78.6 F)	19 of 100 (Routine)
Kirchdorf/Poel	Germany	Record high maximum temperature	17.6 C (63.7 F)	18 of 100 (Routine)
Haparanda	Sweden	Record high maximum temperature	6.5 C (43.7 F)	18 of 100 (Routine)
Boras	Sweden	Record high maximum temperature	15.0 C (59.0 F)	18 of 100 (Routine)
Santa Fe	United States	Record high minimum temperature	7.8 C (46.0 F)	18 of 100 (Routine)
Port Douglas - Warner St	Australia	Record daily precipitation	89.9 mm (3.5 in)	17 of 100 (Routine)
Lubeck-Werft	Germany	Record high maximum temperature	17.8 C (64.0 F)	17 of 100 (Routine)
Halmstad	Sweden	Record high maximum temperature	15.0 C (59.0 F)	17 of 100 (Routine)
Tbilisi	Georgia	Record low minimum temperature	-6.6 C (20.1 F)	16 of 100 (Routine)
Visby_Flygplats	Sweden	Record high minimum temperature	2.5 C (36.5 F)	16 of 100 (Routine)
Nordby (Fano)	Denmark	Record high minimum temperature	6.4 C (43.5 F)	15 of 100 (Routine)
Calitzdorp Pol	South Africa	Record daily precipitation	1.5 mm (0.06 in)	15 of 100 (Routine)
Concordia ASOS	United States	Record high maximum temperature	30.6 C (87.1 F)	15 of 100 (Routine)
Jacksonville Wb City	United States	Record high minimum temperature	19.4 C (66.9 F)	15 of 100 (Routine)
Sandvig	Denmark	Record high maximum temperature	13.8 C (56.8 F)	14 of 100 (Routine)
Schwerin	Germany	Record high maximum temperature	18.4 C (65.1 F)	14 of 100 (Routine)
Arhangelsk	Russia	Record high minimum temperature	1.1 C (34.0 F)	14 of 100 (Routine)
Kargopol	Russia	Record high minimum temperature	1.1 C (34.0 F)	14 of 100 (Routine)
Edmonton	Canada	Record daily precipitation	5.6 mm (0.22 in)	13 of 100 (Routine)
Edmonton	Canada	Record daily snowfall	5.6 cm (2.2 in)	13 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high minimum temperature	4.4 C (39.9 F)	13 of 100 (Routine)
Chattanooga Wb City	United States	Record high minimum temperature	19.4 C (66.9 F)	13 of 100 (Routine)
Sydney	Canada	Record daily snowfall	17.8 cm (7.0 in)	12 of 100 (Routine)
Tranebjerg	Denmark	Record high minimum temperature	4.5 C (40.1 F)	12 of 100 (Routine)
Cottbus	Germany	Record high maximum temperature	18.9 C (66.0 F)	12 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record high minimum temperature	4.6 C (40.3 F)	12 of 100 (Routine)
Franklin	United States	Record high maximum temperature	31.7 C (89.1 F)	12 of 100 (Routine)
Huron Rgnl AP	United States	Record high maximum temperature	28.9 C (84.0 F)	12 of 100 (Routine)
Sable Island	Canada	Record daily precipitation	19.1 mm (0.8 in)	11 of 100 (Routine)
Braunschweig (T.H.)	Germany	Record high maximum temperature	17.6 C (63.7 F)	11 of 100 (Routine)
Pine Bluff	United States	Record high minimum temperature	16.7 C (62.1 F)	11 of 100 (Routine)
Minneapolis Wb Dwtn	United States	Record high maximum temperature	21.7 C (71.1 F)	11 of 100 (Routine)
Concordia ASOS	United States	Record high minimum temperature	11.1 C (52.0 F)	11 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	25.6 C (78.1 F)	10 of 100 (Routine)
Franklin	United States	Record high minimum temperature	6.1 C (43.0 F)	10 of 100 (Routine)
Columbia Wb City	United States	Record high maximum temperature	27.2 C (81.0 F)	10 of 100 (Routine)
Tambo Post Office	Australia	Record daily precipitation	4.1 mm (0.16 in)	9 of 100 (Routine)
Pitea	Sweden	Record high maximum temperature	7.0 C (44.6 F)	9 of 100 (Routine)
Horton	United States	Record high maximum temperature	30.6 C (87.1 F)	9 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record high maximum temperature	15.3 C (59.5 F)	8 of 100 (Routine)
Pitea	Sweden	Record high minimum temperature	0.5 C (32.9 F)	8 of 100 (Routine)
Huron Rgnl AP	United States	Record high minimum temperature	3.3 C (37.9 F)	8 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record high maximum temperature	30.6 C (87.1 F)	7 of 100 (Routine)
Tartu	Estonia	Record high minimum temperature	1.8 C (35.2 F)	6 of 100 (Routine)
Umea	Sweden	Record high maximum temperature	7.6 C (45.7 F)	6 of 100 (Routine)
Cottbus	Germany	Record low minimum temperature	-2.9 C (26.8 F)	4 of 100 (Routine)
Halmstad	Sweden	Record high minimum temperature	6.0 C (42.8 F)	3 of 100 (Routine)
Jonkoping	Sweden	Record high maximum temperature	12.0 C (53.6 F)	3 of 100 (Routine)
Karesuando	Sweden	Record high minimum temperature	-1.5 C (29.3 F)	3 of 100 (Routine)
Crookston NW Exp STN	United States	Record high minimum temperature	2.2 C (36.0 F)	3 of 100 (Routine)
Astoria	United States	Record daily precipitation	21.8 mm (0.9 in)	3 of 100 (Routine)

Counts by Type and Timescale

66 records

Records set or tied on 18 March 1921 by type: Highest daily maximum 27, Lowest daily maximum 1, Highest daily minimum 21, Lowest daily minimum 2, Heaviest daily rainfall 13, Heaviest daily snowfall 2.

Records on 18 March 1921 by type
Record type	Records
Highest daily maximum	27
Lowest daily maximum	1
Highest daily minimum	21
Lowest daily minimum	2
Heaviest daily rainfall	13
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 18 March 1921 by timescale: all-time 0, monthly 2, daily 64.

How Much Records Were Beaten By

57 broken records

Margins by which the 57 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 40.2. Ties are not counted.

Top 20 by Significance

18 March 1921

Top 20 records on 18 March 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 March 1921	Daly Waters, AU	daily rain	77.0 mm (3.0 in)	40.2 mm (1.6 in)	34 years	36 of 100 (Notable)
18 March 1921	Newport, US	daily rain	46.7 mm (1.8 in)	23.6 mm (0.9 in)	21 years	27 of 100 (Routine)
18 March 1921	Vanersborg, SE	daily high max	12.5 C (54.5 F)	4.5 C (8.1 F)	36 years	25 of 100 (Routine)
18 March 1921	Pine Creek, AU	daily rain	51.8 mm (2.0 in)	28.9 mm (1.1 in)	16 years	24 of 100 (Routine)
18 March 1921	Cooktown Post Office, AU	monthly rain	209.8 mm (8.3 in)	11.4 mm (0.4 in)	22 years	24 of 100 (Routine)
18 March 1921	Vestervig, DK	daily high max	11.6 C (52.9 F)	1.9 C (3.4 F)	36 years	21 of 100 (Routine)
18 March 1921	Jimbour State School, AU	daily rain	18.5 mm (0.7 in)	18.5 mm (0.7 in)	38 years	20 of 100 (Routine)
18 March 1921	Katherine Council, AU	daily rain	118.1 mm (4.6 in)	22.8 mm (0.9 in)	20 years	20 of 100 (Routine)
18 March 1921	Visby_Flygplats, SE	daily high max	11.5 C (52.7 F)	2.0 C (3.6 F)	36 years	20 of 100 (Routine)
18 March 1921	Nuwara Eliya, LK	daily high max	25.9 C (78.6 F)	0.9 C (1.6 F)	30 years	19 of 100 (Routine)
18 March 1921	Kirchdorf/Poel, DE	daily high max	17.6 C (63.7 F)	3.6 C (6.5 F)	24 years	18 of 100 (Routine)
18 March 1921	Haparanda, SE	daily high max	6.5 C (43.7 F)	2.5 C (4.5 F)	34 years	18 of 100 (Routine)
18 March 1921	Boras, SE	daily high max	15.0 C (59.0 F)	3.0 C (5.4 F)	28 years	18 of 100 (Routine)
18 March 1921	Santa Fe, US	daily high min	7.8 C (46.0 F)	2.2 C (4.0 F)	30 years	18 of 100 (Routine)
18 March 1921	Port Douglas - Warner St, AU	daily rain	89.9 mm (3.5 in)	26.4 mm (1.0 in)	29 years	17 of 100 (Routine)
18 March 1921	Lubeck-Werft, DE	daily high max	17.8 C (64.0 F)	3.2 C (5.8 F)	24 years	17 of 100 (Routine)
18 March 1921	Halmstad, SE	daily high max	15.0 C (59.0 F)	1.0 C (1.8 F)	36 years	17 of 100 (Routine)
18 March 1921	Tbilisi, GE	daily low min	-6.6 C (20.1 F)	2.6 C (4.7 F)	19 years	16 of 100 (Routine)
18 March 1921	Visby_Flygplats, SE	daily high min	2.5 C (36.5 F)	0.5 C (0.9 F)	36 years	16 of 100 (Routine)
18 March 1921	Nordby (Fano), DK	daily high min	6.4 C (43.5 F)	1.7 C (3.1 F)	22 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

1806 to 1921

Records set or tied on this calendar date in each year from 1806 to 1921. 1921 had 66 records.

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

Records on 03-18 in each year
Year	Records
1806	1
1807	1
1808	1
1810	1
1814	1
1831	1
1836	1
1839	1
1845	1
1849	1
1850	5
1853	2
1859	1
1863	1
1865	2
1867	1
1868	3
1876	1
1881	1
1882	3
1884	3
1885	1
1887	1
1888	4
1890	3
1891	3
1892	2
1893	1
1894	1
1895	2
1896	10
1897	14
1898	5
1899	8
1900	14
1901	2
1902	9
1903	22
1904	9
1905	19
1906	13
1907	11
1908	8
1909	9
1910	12
1911	17
1912	16
1913	24
1914	32
1915	30
1916	73
1917	45
1918	32
1919	25
1920	39
1921	66
1922	39
1923	262
1924	96
1925	145
1926	251
1927	376
1928	301
1929	106
1930	261
1931	167
1932	212
1933	244
1934	375
1935	87
1936	699
1937	296
1938	304
1939	750
1940	444
1941	954
1942	382
1943	603
1944	321
1945	751
1946	492
1947	328
1948	296
1949	292
1950	1,042
1951	582
1952	474
1953	218
1954	355
1955	469
1956	363
1957	374
1958	347
1959	392
1960	585
1961	579
1962	284
1963	665
1964	348
1965	1,584
1966	540
1967	1,396
1968	915
1969	601
1970	533
1971	405
1972	1,028
1973	716
1974	694
1975	614
1976	538
1977	684
1978	1,003
1979	894
1980	588
1981	570
1982	1,284
1983	1,225
1984	446
1985	731
1986	626
1987	933
1988	1,001
1989	1,147
1990	1,478
1991	706
1992	789
1993	1,683
1994	960
1995	833
1996	518
1997	1,024
1998	1,144
1999	1,051
2000	524
2001	841
2002	1,562
2003	1,425
2004	1,232
2005	1,178
2006	551
2007	1,330
2008	1,066
2009	776
2010	678
2011	993
2012	3,348
2013	783
2014	701
2015	943
2016	675
2017	1,183
2018	921
2019	666
2020	672
2021	562
2022	476
2023	890
2024	843
2025	728
2026	2,870

Download the Data

Data for records on 1921-03-18: 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).

Histogram of margins by which records were beaten on 18 March 1921
Margin	Records
0 to 10	49
10 to 20	2
20 to 30	5
30 to 40	0
40 to 50	1