Weather Records on 21 March 2017

1,117 weather records were set or tied worldwide on 21 March 2017. Highest significance: Cangai (Smelter Creek), AU.

Key Facts for 21 March 2017

On 21 March 2017, 1,117 weather records were set or tied at long-record stations worldwide.
830 were record highs and 14 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 58 monthly and 1,059 daily.
Cangai (Smelter Creek) set a daily record precipitation of 108.2 mm (4.3 in) on 21 March 2017.
Across 157 earlier years (1797 to 2026) the same calendar date averaged 479 records.

Record Map

1,117 stations

1,117 station records on 21 March 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 March 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cangai (Smelter Creek)	Australia	Record daily precipitation	108.2 mm (4.3 in)	76 of 100 (Major)
Cowra Ag Research Station	Australia	Record daily precipitation	68.4 mm (2.7 in)	56 of 100 (Notable)
Englesberg Village	Australia	Record daily precipitation	66.8 mm (2.6 in)	55 of 100 (Notable)
Numinbah State Farm	Australia	Record daily precipitation	112.0 mm (4.4 in)	55 of 100 (Notable)
Maroon Dam	Australia	Record daily precipitation	80.4 mm (3.2 in)	53 of 100 (Notable)
Frances	Australia	Record daily precipitation	46.4 mm (1.8 in)	52 of 100 (Notable)
Maroon	Australia	Record daily precipitation	63.8 mm (2.5 in)	52 of 100 (Notable)
Lucindale Post Office	Australia	Record daily precipitation	98.8 mm (3.9 in)	51 of 100 (Notable)
Hechi	China	Record daily precipitation	33.8 mm (1.3 in)	51 of 100 (Notable)
Urana (Nowranie)	Australia	Record daily precipitation	55.0 mm (2.2 in)	50 of 100 (Notable)
Levan	United States	Record high minimum temperature	9.4 C (48.9 F)	48 of 100 (Notable)
Scipio	United States	Record high minimum temperature	10.0 C (50.0 F)	48 of 100 (Notable)
Warren (Mumblebone)	Australia	Record daily precipitation	37.6 mm (1.5 in)	47 of 100 (Notable)
Wasco	United States	Record high minimum temperature	13.9 C (57.0 F)	46 of 100 (Notable)
Pleasant Hill	United States	Record daily precipitation	51.3 mm (2.0 in)	46 of 100 (Notable)
Mt Alford	Australia	Record daily precipitation	67.4 mm (2.7 in)	45 of 100 (Notable)
Boothulla	Australia	Record daily precipitation	60.0 mm (2.4 in)	45 of 100 (Notable)
Walli (Kentucky)	Australia	Record daily precipitation	58.0 mm (2.3 in)	45 of 100 (Notable)
Tombong (Hillcrest)	Australia	Record daily precipitation	29.0 mm (1.1 in)	45 of 100 (Notable)
M'Puoya	Congo (Brazzaville)	Record low minimum temperature	16.5 C (61.7 F)	45 of 100 (Notable)
Plainview	United States	Record high maximum temperature	33.3 C (91.9 F)	45 of 100 (Notable)
Oak City	United States	Record high minimum temperature	16.1 C (61.0 F)	45 of 100 (Notable)
Waterville	United States	Record snow depth	20.3 cm (8.0 in)	45 of 100 (Notable)
Clarendon	United States	Record high maximum temperature	35.6 C (96.1 F)	45 of 100 (Notable)
Urana Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Ebor (Wongwibinda)	Australia	Record daily precipitation	39.0 mm (1.5 in)	43 of 100 (Notable)
Cooma Visitors Centre	Australia	Record daily precipitation	70.0 mm (2.8 in)	43 of 100 (Notable)
Yokkaichi	Japan	Record daily precipitation	52.1 mm (2.1 in)	43 of 100 (Notable)
Glenbrook	United States	Record high minimum temperature	5.6 C (42.1 F)	43 of 100 (Notable)
Watonga	United States	Record high maximum temperature	35.0 C (95.0 F)	43 of 100 (Notable)
Black Rock	United States	Record high minimum temperature	7.2 C (45.0 F)	43 of 100 (Notable)
Monticello Muni AP	United States	Record high maximum temperature	31.1 C (88.0 F)	43 of 100 (Notable)
Rowena (Bungara)	Australia	Record daily precipitation	64.0 mm (2.5 in)	42 of 100 (Notable)
Tingha (Crystal Hill)	Australia	Record daily precipitation	55.2 mm (2.2 in)	42 of 100 (Notable)
Coleraine (Melville Forest)	Australia	Record daily precipitation	50.6 mm (2.0 in)	42 of 100 (Notable)
Mammoth Spring	United States	Record high maximum temperature	33.3 C (91.9 F)	42 of 100 (Notable)
Eagle Mtn	United States	Record high minimum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Tucumcari 4 NE	United States	Record high maximum temperature	31.7 C (89.1 F)	42 of 100 (Notable)
Mt Pleasant	United States	Record high maximum temperature	32.8 C (91.0 F)	42 of 100 (Notable)
Maclean Bridge	Australia	Record daily precipitation	77.6 mm (3.1 in)	41 of 100 (Notable)
Roosevelt 1 S	United States	Record high maximum temperature	32.2 C (90.0 F)	41 of 100 (Notable)
Hardy	United States	Record high maximum temperature	31.7 C (89.1 F)	41 of 100 (Notable)
Hot Springs 1 NNE	United States	Record high minimum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Marshall	United States	Record high maximum temperature	30.6 C (87.1 F)	41 of 100 (Notable)
Emmett 2 E	United States	Record high minimum temperature	8.3 C (46.9 F)	41 of 100 (Notable)
Mtn Park	United States	Record high minimum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Albany	United States	Record high minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Logan Utah St UNIV	United States	Record high minimum temperature	7.8 C (46.0 F)	41 of 100 (Notable)
Evanston 1 E	United States	Record high minimum temperature	2.8 C (37.0 F)	41 of 100 (Notable)
Gympie	Australia	Record daily precipitation	42.0 mm (1.7 in)	40 of 100 (Notable)
Rosewood Walloon Rd	Australia	Record daily precipitation	60.0 mm (2.4 in)	40 of 100 (Notable)
Cheyenne Wells 2NE	United States	Record high maximum temperature	28.9 C (84.0 F)	40 of 100 (Notable)
Artesia 6S	United States	Record high maximum temperature	32.8 C (91.0 F)	40 of 100 (Notable)
Mutual	United States	Record high maximum temperature	31.7 C (89.1 F)	40 of 100 (Notable)
Midland 4 ENE	United States	Record high maximum temperature	35.0 C (95.0 F)	40 of 100 (Notable)
Cottonwood Weir	United States	Record high minimum temperature	16.1 C (61.0 F)	40 of 100 (Notable)
Ely AP	United States	Record high minimum temperature	7.8 C (46.0 F)	40 of 100 (Notable)
Wilsons Peak	Australia	Record daily precipitation	77.2 mm (3.0 in)	39 of 100 (Notable)
Aibonito 1 S	Puerto Rico [United States]	Record daily precipitation	57.2 mm (2.3 in)	39 of 100 (Notable)
Winters	United States	Record daily precipitation	49.5 mm (1.9 in)	39 of 100 (Notable)

Counts by Type and Timescale

1,117 records

Records set or tied on 21 March 2017 by type: Highest daily maximum 399, Lowest daily maximum 7, Highest daily minimum 431, Lowest daily minimum 7, Heaviest daily rainfall 262, Heaviest daily snowfall 2, Deepest snow cover 9.

Records on 21 March 2017 by type
Record type	Records
Highest daily maximum	399
Lowest daily maximum	7
Highest daily minimum	431
Lowest daily minimum	7
Heaviest daily rainfall	262
Heaviest daily snowfall	2
Deepest snow cover	9

Records on 21 March 2017 by timescale: all-time 0, monthly 58, daily 1,059.

How Much Records Were Beaten By

887 broken records

Margins by which the 887 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 153.0. Ties are not counted.

Top 20 by Significance

21 March 2017

Top 20 records on 21 March 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 March 2017	Cangai (Smelter Creek), AU	daily rain	108.2 mm (4.3 in)	62.5 mm (2.5 in)	103 years	76 of 100 (Major)
21 March 2017	Cowra Ag Research Station, AU	daily rain	68.4 mm (2.7 in)	26.2 mm (1.0 in)	86 years	56 of 100 (Notable)
21 March 2017	Englesberg Village, AU	daily rain	66.8 mm (2.6 in)	35.3 mm (1.4 in)	79 years	55 of 100 (Notable)
21 March 2017	Numinbah State Farm, AU	daily rain	112.0 mm (4.4 in)	79.7 mm (3.1 in)	68 years	55 of 100 (Notable)
21 March 2017	Maroon Dam, AU	daily rain	80.4 mm (3.2 in)	70.4 mm (2.8 in)	30 years	53 of 100 (Notable)
21 March 2017	Frances, AU	daily rain	46.4 mm (1.8 in)	14.1 mm (0.6 in)	82 years	52 of 100 (Notable)
21 March 2017	Maroon, AU	daily rain	63.8 mm (2.5 in)	36.9 mm (1.5 in)	48 years	52 of 100 (Notable)
21 March 2017	Lucindale Post Office, AU	daily rain	98.8 mm (3.9 in)	58.2 mm (2.3 in)	6 years	51 of 100 (Notable)
21 March 2017	Hechi, CN	daily rain	33.8 mm (1.3 in)	24.8 mm (1.0 in)	28 years	51 of 100 (Notable)
21 March 2017	Urana (Nowranie), AU	daily rain	55.0 mm (2.2 in)	16.1 mm (0.6 in)	91 years	50 of 100 (Notable)
21 March 2017	Levan, US	daily high min	9.4 C (48.9 F)	3.8 C (6.8 F)	107 years	48 of 100 (Notable)
21 March 2017	Scipio, US	daily high min	10.0 C (50.0 F)	3.9 C (7.0 F)	110 years	48 of 100 (Notable)
21 March 2017	Warren (Mumblebone), AU	daily rain	37.6 mm (1.5 in)	9.7 mm (0.38 in)	116 years	47 of 100 (Notable)
21 March 2017	Wasco, US	daily high min	13.9 C (57.0 F)	2.2 C (4.0 F)	115 years	46 of 100 (Notable)
21 March 2017	Pleasant Hill, US	daily rain	51.3 mm (2.0 in)	22.1 mm (0.9 in)	36 years	46 of 100 (Notable)
21 March 2017	Mt Alford, AU	daily rain	67.4 mm (2.7 in)	22.9 mm (0.9 in)	79 years	45 of 100 (Notable)
21 March 2017	Boothulla, AU	daily rain	60.0 mm (2.4 in)	23.2 mm (0.9 in)	64 years	45 of 100 (Notable)
21 March 2017	Walli (Kentucky), AU	daily rain	58.0 mm (2.3 in)	33.9 mm (1.3 in)	47 years	45 of 100 (Notable)
21 March 2017	Tombong (Hillcrest), AU	daily rain	29.0 mm (1.1 in)	11.7 mm (0.5 in)	79 years	45 of 100 (Notable)
21 March 2017	M'Puoya, CG	daily low min	16.5 C (61.7 F)	2.5 C (4.5 F)	64 years	45 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

1797 to 2017

Records set or tied on this calendar date in each year from 1797 to 2017. 2017 had 1,117 records.

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

Records on 03-21 in each year
Year	Records
1797	2
1805	1
1806	1
1822	1
1830	1
1836	1
1837	1
1845	1
1846	1
1850	1
1852	2
1857	1
1865	7
1874	1
1877	1
1880	1
1881	1
1883	2
1884	1
1885	5
1886	2
1888	1
1890	3
1892	1
1893	1
1894	1
1895	1
1896	2
1897	2
1898	3
1899	4
1900	4
1901	9
1902	18
1903	23
1904	17
1905	6
1906	3
1907	14
1908	3
1909	11
1910	10
1911	10
1912	36
1913	97
1914	71
1915	27
1916	44
1917	43
1918	43
1919	29
1920	90
1921	96
1922	50
1923	72
1924	96
1925	141
1926	282
1927	179
1928	293
1929	104
1930	99
1931	638
1932	305
1933	235
1934	114
1935	675
1936	225
1937	172
1938	783
1939	280
1940	366
1941	311
1942	330
1943	217
1944	556
1945	294
1946	570
1947	192
1948	948
1949	330
1950	398
1951	779
1952	689
1953	342
1954	211
1955	1,124
1956	686
1957	373
1958	619
1959	230
1960	892
1961	268
1962	548
1963	298
1964	333
1965	1,961
1966	464
1967	487
1968	798
1969	219
1970	612
1971	358
1972	519
1973	385
1974	1,097
1975	751
1976	710
1977	376
1978	838
1979	656
1980	775
1981	676
1982	850
1983	1,673
1984	835
1985	503
1986	1,170
1987	948
1988	1,155
1989	1,396
1990	1,380
1991	1,446
1992	877
1993	687
1994	684
1995	1,141
1996	1,119
1997	1,670
1998	935
1999	1,044
2000	802
2001	1,342
2002	1,593
2003	1,073
2004	1,511
2005	649
2006	1,417
2007	1,220
2008	734
2009	558
2010	1,134
2011	1,451
2012	2,854
2013	727
2014	639
2015	568
2016	553
2017	1,117
2018	809
2019	649
2020	445
2021	489
2022	615
2023	815
2024	432
2025	845
2026	2,615

Download the Data

Data for records on 2017-03-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).

Margin	Records
0 to 20	845
20 to 40	31
40 to 60	4
60 to 80	3
80 to 100	0
100 to 120	1
120 to 140	1
140 to 160	2