Weather Records on 21 February 1917

415 weather records were set or tied worldwide on 21 February 1917. Highest significance: Maitland, AU.

Key Facts for 21 February 1917

On 21 February 1917, 415 weather records were set or tied at long-record stations worldwide.
5 were record highs and 3 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 9 monthly and 405 daily.
Maitland set a monthly record daily precipitation of 44.5 mm (1.8 in) on 21 February 1917.
Across 164 earlier years (1795 to 2026) the same calendar date averaged 502 records.

Record Map

415 stations

415 station records on 21 February 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 February 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Maitland	Australia	Record daily precipitation	44.5 mm (1.8 in)	62 of 100 (Major)
Poolamacca	Australia	Record daily precipitation	64.8 mm (2.6 in)	59 of 100 (Notable)
Moonta	Australia	Record daily precipitation	43.9 mm (1.7 in)	58 of 100 (Notable)
Overland Corner	Australia	Record daily precipitation	44.7 mm (1.8 in)	55 of 100 (Notable)
Menindee (Weinteriga)	Australia	Record daily precipitation	63.5 mm (2.5 in)	55 of 100 (Notable)
Oudtshoorn	South Africa	Record daily precipitation	58.4 mm (2.3 in)	55 of 100 (Notable)
White Cliffs (Tongo)	Australia	Record daily precipitation	42.7 mm (1.7 in)	54 of 100 (Notable)
Minlaton	Australia	Record daily precipitation	35.6 mm (1.4 in)	53 of 100 (Notable)
Palermo	Italy	Record daily precipitation	40.0 mm (1.6 in)	52 of 100 (Notable)
Curramulka	Australia	Record daily precipitation	41.9 mm (1.6 in)	51 of 100 (Notable)
Maitland (Woodburlie)	Australia	Record daily precipitation	28.7 mm (1.1 in)	51 of 100 (Notable)
Warooka	Australia	Record daily precipitation	35.1 mm (1.4 in)	51 of 100 (Notable)
Tareena	Australia	Record daily precipitation	45.7 mm (1.8 in)	51 of 100 (Notable)
Goulburn River @ Shepparton	Australia	Record daily precipitation	39.1 mm (1.5 in)	51 of 100 (Notable)
Cowell	Australia	Record daily precipitation	28.2 mm (1.1 in)	50 of 100 (Notable)
Neds Corner Homestead	Australia	Record daily precipitation	43.9 mm (1.7 in)	50 of 100 (Notable)
Stansbury	Australia	Record daily precipitation	42.4 mm (1.7 in)	49 of 100 (Notable)
Yorketown	Australia	Record daily precipitation	29.2 mm (1.1 in)	49 of 100 (Notable)
Corny Point Lighthouse	Australia	Record daily precipitation	45.2 mm (1.8 in)	49 of 100 (Notable)
Quambatook South	Australia	Record daily precipitation	36.6 mm (1.4 in)	46 of 100 (Notable)
Euston Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	45 of 100 (Notable)
Maldon (Derby Hill)	Australia	Record daily precipitation	51.1 mm (2.0 in)	45 of 100 (Notable)
Tullaroop Reservoir	Australia	Record daily precipitation	38.1 mm (1.5 in)	45 of 100 (Notable)
Wentworth Post Office	Australia	Record daily precipitation	48.3 mm (1.9 in)	44 of 100 (Notable)
Gammon Ranges (Wooltana)	Australia	Record daily precipitation	35.1 mm (1.4 in)	43 of 100 (Notable)
Old Baratta Homestead	Australia	Record daily precipitation	54.1 mm (2.1 in)	43 of 100 (Notable)
Swan Hill (Murray Downs)	Australia	Record daily precipitation	28.2 mm (1.1 in)	43 of 100 (Notable)
Benjeroop (Davey)	Australia	Record daily precipitation	28.4 mm (1.1 in)	43 of 100 (Notable)
Numurkah Post Office	Australia	Record daily precipitation	31.2 mm (1.2 in)	43 of 100 (Notable)
Outalpa	Australia	Record daily precipitation	28.7 mm (1.1 in)	42 of 100 (Notable)
Benalla (Shadforth Street)	Australia	Record daily precipitation	33.5 mm (1.3 in)	42 of 100 (Notable)
Willunga	Australia	Record daily precipitation	26.2 mm (1.0 in)	41 of 100 (Notable)
Lake Victoria (Cal-Lal)	Australia	Record daily precipitation	61.5 mm (2.4 in)	41 of 100 (Notable)
Tyntynder Station	Australia	Record daily precipitation	34.8 mm (1.4 in)	41 of 100 (Notable)
Halls Gap	Australia	Record daily precipitation	30.5 mm (1.2 in)	41 of 100 (Notable)
Dunolly	Australia	Record daily precipitation	32.3 mm (1.3 in)	41 of 100 (Notable)
Daylesford	Australia	Record daily precipitation	42.7 mm (1.7 in)	41 of 100 (Notable)
Swan Hill Post Office	Australia	Record daily precipitation	25.9 mm (1.0 in)	40 of 100 (Notable)
Wallaloo	Australia	Record daily precipitation	25.4 mm (1.0 in)	40 of 100 (Notable)
Second Valley (Poolamacca)	Australia	Record daily precipitation	32.3 mm (1.3 in)	39 of 100 (Notable)
Towaninnie	Australia	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Kaarimba	Australia	Record daily precipitation	36.6 mm (1.4 in)	39 of 100 (Notable)
Dookie Agricultural College	Australia	Record daily precipitation	36.6 mm (1.4 in)	39 of 100 (Notable)
Maryborough	Australia	Record daily precipitation	29.2 mm (1.1 in)	39 of 100 (Notable)
Hammond	Australia	Record daily precipitation	57.7 mm (2.3 in)	38 of 100 (Notable)
Charlton Post Office	Australia	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Strathbogie North	Australia	Record daily precipitation	50.3 mm (2.0 in)	37 of 100 (Notable)
Cornalla	Australia	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Kerang (Meran Downs)	Australia	Record daily precipitation	36.8 mm (1.4 in)	36 of 100 (Notable)
Inglewood (Post Office)	Australia	Record daily precipitation	35.1 mm (1.4 in)	36 of 100 (Notable)
Peterborough (Dawson)	Australia	Record daily precipitation	50.0 mm (2.0 in)	34 of 100 (Routine)
Echuca Aerodrome	Australia	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Curnomona (Curnamona)	Australia	Record daily precipitation	29.7 mm (1.2 in)	33 of 100 (Routine)
Dingee	Australia	Record daily precipitation	34.8 mm (1.4 in)	33 of 100 (Routine)
Wickliffe	Australia	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Johnburgh Post Office	Australia	Record daily precipitation	25.9 mm (1.0 in)	31 of 100 (Routine)
Wentworth (Avoca)	Australia	Record daily precipitation	38.4 mm (1.5 in)	31 of 100 (Routine)
Canary Island	Australia	Record daily precipitation	36.1 mm (1.4 in)	31 of 100 (Routine)
Clunes	Australia	Record daily precipitation	32.3 mm (1.3 in)	31 of 100 (Routine)
Hawker	Australia	Record daily precipitation	36.3 mm (1.4 in)	30 of 100 (Routine)

Counts by Type and Timescale

415 records

Records set or tied on 21 February 1917 by type: Highest daily maximum 2, Highest daily minimum 3, Lowest daily minimum 3, Heaviest daily rainfall 400, Heaviest daily snowfall 6, Deepest snow cover 1.

Records on 21 February 1917 by type
Record type	Records
Highest daily maximum	2
Lowest daily maximum	0
Highest daily minimum	3
Lowest daily minimum	3
Heaviest daily rainfall	400
Heaviest daily snowfall	6
Deepest snow cover	1

Records on 21 February 1917 by timescale: all-time 1, monthly 9, daily 405.

How Much Records Were Beaten By

403 broken records

Margins by which the 403 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 70.3. Ties are not counted.

Top 20 by Significance

21 February 1917

Top 20 records on 21 February 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 February 1917	Maitland, AU	monthly rain	44.5 mm (1.8 in)	19.9 mm (0.8 in)	31 years	62 of 100 (Major)
21 February 1917	Poolamacca, AU	monthly rain	64.8 mm (2.6 in)	36.9 mm (1.5 in)	21 years	59 of 100 (Notable)
21 February 1917	Moonta, AU	monthly rain	43.9 mm (1.7 in)	19.0 mm (0.7 in)	14 years	58 of 100 (Notable)
21 February 1917	Overland Corner, AU	daily rain	44.7 mm (1.8 in)	44.7 mm (1.8 in)	37 years	55 of 100 (Notable)
21 February 1917	Menindee (Weinteriga), AU	daily rain	63.5 mm (2.5 in)	63.5 mm (2.5 in)	39 years	55 of 100 (Notable)
21 February 1917	Oudtshoorn, ZA	daily rain	58.4 mm (2.3 in)	58.4 mm (2.3 in)	38 years	55 of 100 (Notable)
21 February 1917	White Cliffs (Tongo), AU	daily rain	42.7 mm (1.7 in)	41.9 mm (1.6 in)	35 years	54 of 100 (Notable)
21 February 1917	Minlaton, AU	daily rain	35.6 mm (1.4 in)	35.6 mm (1.4 in)	34 years	53 of 100 (Notable)
21 February 1917	Palermo, IT	daily rain	40.0 mm (1.6 in)	25.5 mm (1.0 in)	41 years	52 of 100 (Notable)
21 February 1917	Curramulka, AU	daily rain	41.9 mm (1.6 in)	41.9 mm (1.6 in)	29 years	51 of 100 (Notable)
21 February 1917	Maitland (Woodburlie), AU	daily rain	28.7 mm (1.1 in)	26.4 mm (1.0 in)	27 years	51 of 100 (Notable)
21 February 1917	Warooka, AU	daily rain	35.1 mm (1.4 in)	30.5 mm (1.2 in)	20 years	51 of 100 (Notable)
21 February 1917	Tareena, AU	monthly rain	45.7 mm (1.8 in)	21.1 mm (0.8 in)	4 years	51 of 100 (Notable)
21 February 1917	Goulburn River @ Shepparton, AU	daily rain	39.1 mm (1.5 in)	37.8 mm (1.5 in)	24 years	51 of 100 (Notable)
21 February 1917	Cowell, AU	daily rain	28.2 mm (1.1 in)	23.6 mm (0.9 in)	24 years	50 of 100 (Notable)
21 February 1917	Neds Corner Homestead, AU	daily rain	43.9 mm (1.7 in)	43.1 mm (1.7 in)	24 years	50 of 100 (Notable)
21 February 1917	Stansbury, AU	daily rain	42.4 mm (1.7 in)	41.9 mm (1.6 in)	20 years	49 of 100 (Notable)
21 February 1917	Yorketown, AU	daily rain	29.2 mm (1.1 in)	28.9 mm (1.1 in)	22 years	49 of 100 (Notable)
21 February 1917	Corny Point Lighthouse, AU	daily rain	45.2 mm (1.8 in)	42.4 mm (1.7 in)	20 years	49 of 100 (Notable)
21 February 1917	Quambatook South, AU	daily rain	36.6 mm (1.4 in)	36.6 mm (1.4 in)	28 years	46 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

1795 to 1917

Records set or tied on this calendar date in each year from 1795 to 1917. 1917 had 415 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 1917-02-21: 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 10	200
10 to 20	116
20 to 30	49
30 to 40	24
40 to 50	10
50 to 60	2
60 to 70	1
70 to 80	1