Weather Records on 17 March 2021

502 weather records were set or tied worldwide on 17 March 2021. Highest significance: Yaamba, AU.

Key Facts for 17 March 2021

On 17 March 2021, 502 weather records were set or tied at long-record stations worldwide.
122 were record highs and 121 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 493 daily.
Yaamba set a daily record precipitation of 160.0 mm (6.3 in) on 17 March 2021.
Across 161 earlier years (1825 to 2026) the same calendar date averaged 475 records.

Record Map

502 stations

502 station records on 17 March 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 March 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Yaamba	Australia	Record daily precipitation	160.0 mm (6.3 in)	74 of 100 (Major)
Sapphire Post Office	Australia	Record daily precipitation	98.0 mm (3.9 in)	68 of 100 (Major)
Sisian	Armenia	Record daily precipitation	99.1 mm (3.9 in)	66 of 100 (Major)
Scottsbluff W B Heilig Fld AP	United States	Record snow depth	23.0 cm (9.1 in)	62 of 100 (Major)
Muscle Shoals AP	United States	Record daily precipitation	120.4 mm (4.7 in)	59 of 100 (Notable)
Wansey Downs	Australia	Record daily precipitation	75.4 mm (3.0 in)	58 of 100 (Notable)
Cecil Plains Homestead	Australia	Record daily precipitation	45.4 mm (1.8 in)	57 of 100 (Notable)
Aramac Post Office	Australia	Record daily precipitation	77.0 mm (3.0 in)	56 of 100 (Notable)
Gue	Australia	Record daily precipitation	48.6 mm (1.9 in)	56 of 100 (Notable)
Sybille Rsch Unit	United States	Record snow depth	55.9 cm (22.0 in)	56 of 100 (Notable)
Mitchell Post Office	Australia	Record daily precipitation	72.8 mm (2.9 in)	54 of 100 (Notable)
Yuleba Garden St	Australia	Record daily precipitation	78.5 mm (3.1 in)	54 of 100 (Notable)
Milford	United States	Record snow depth	20.3 cm (8.0 in)	54 of 100 (Notable)
Nive Downs	Australia	Record daily precipitation	116.0 mm (4.6 in)	53 of 100 (Notable)
Bucuresti-Baneasa	Romania	Record daily precipitation	26.4 mm (1.0 in)	53 of 100 (Notable)
Perola Park	Australia	Record daily precipitation	87.0 mm (3.4 in)	52 of 100 (Notable)
Wharton Creek Station	Australia	Record daily precipitation	70.0 mm (2.8 in)	50 of 100 (Notable)
Ottawa	United States	Record daily precipitation	39.9 mm (1.6 in)	49 of 100 (Notable)
Batesburg	United States	Record daily precipitation	62.2 mm (2.4 in)	49 of 100 (Notable)
Anakie Richardson St	Australia	Record daily precipitation	118.0 mm (4.6 in)	48 of 100 (Notable)
Spring Creek Station	Australia	Record daily precipitation	45.0 mm (1.8 in)	48 of 100 (Notable)
Calarasi	Romania	Record daily precipitation	32.1 mm (1.3 in)	48 of 100 (Notable)
Coreena	Australia	Record daily precipitation	49.0 mm (1.9 in)	47 of 100 (Notable)
Willows Gemfields	Australia	Record daily precipitation	59.0 mm (2.3 in)	46 of 100 (Notable)
Barcaldine Post Office	Australia	Record daily precipitation	50.3 mm (2.0 in)	46 of 100 (Notable)
Gilgandra (Chelmsford Ave)	Australia	Record daily precipitation	57.0 mm (2.2 in)	46 of 100 (Notable)
Loveland 2N	United States	Record snow depth	40.6 cm (16.0 in)	46 of 100 (Notable)
Ojai	United States	Record low minimum temperature	-2.2 C (28.0 F)	45 of 100 (Notable)
Oelrichs	United States	Record snow depth	35.6 cm (14.0 in)	45 of 100 (Notable)
Ambo Station	Australia	Record daily precipitation	71.4 mm (2.8 in)	44 of 100 (Notable)
Cleveland Fltr Plt	United States	Record daily precipitation	58.7 mm (2.3 in)	44 of 100 (Notable)
Normandy	Australia	Record daily precipitation	45.2 mm (1.8 in)	43 of 100 (Notable)
Buzau	Romania	Record daily precipitation	43.6 mm (1.7 in)	43 of 100 (Notable)
Mt Vernon 3 NE	United States	Record daily precipitation	39.9 mm (1.6 in)	43 of 100 (Notable)
Gracemere Russell St	Australia	Record daily precipitation	46.4 mm (1.8 in)	42 of 100 (Notable)
Athens	United States	Record daily precipitation	73.7 mm (2.9 in)	42 of 100 (Notable)
Livermore	United States	Record low minimum temperature	-1.1 C (30.0 F)	42 of 100 (Notable)
Ft Collins 4 E	United States	Record snow depth	27.9 cm (11.0 in)	42 of 100 (Notable)
Gustavus	United States	Record daily snowfall	16.0 cm (6.3 in)	42 of 100 (Notable)
Belah Park	Australia	Record daily precipitation	48.6 mm (1.9 in)	41 of 100 (Notable)
Woodlands	Australia	Record daily precipitation	37.4 mm (1.5 in)	41 of 100 (Notable)
Northglenn	United States	Record snow depth	33.0 cm (13.0 in)	41 of 100 (Notable)
Agate 3 E	United States	Record daily snowfall	20.3 cm (8.0 in)	41 of 100 (Notable)
Waikapu 390	United States	Record daily precipitation	31.2 mm (1.2 in)	41 of 100 (Notable)
Cheyenne	United States	Record snow depth	30.0 cm (11.8 in)	41 of 100 (Notable)
Casper-Natrona Co AP	United States	Record snow depth	38.0 cm (15.0 in)	41 of 100 (Notable)
Rockhampton Aero	Australia	Record daily precipitation	43.2 mm (1.7 in)	40 of 100 (Notable)
Jackson Community Postal Agen	Australia	Record daily precipitation	55.0 mm (2.2 in)	40 of 100 (Notable)
Saluda	United States	Record daily precipitation	35.1 mm (1.4 in)	40 of 100 (Notable)
Bravo	United States	Record daily snowfall	6.4 cm (2.5 in)	40 of 100 (Notable)
Peakvale Station	Australia	Record daily precipitation	47.0 mm (1.9 in)	39 of 100 (Notable)
Beaconsfield	Australia	Record daily precipitation	81.0 mm (3.2 in)	39 of 100 (Notable)
Hesston	United States	Record daily precipitation	29.2 mm (1.1 in)	39 of 100 (Notable)
Harrison	United States	Record snow depth	63.5 cm (25.0 in)	39 of 100 (Notable)
Belmont	Australia	Record daily precipitation	33.4 mm (1.3 in)	37 of 100 (Notable)
Havelock	Australia	Record daily precipitation	102.0 mm (4.0 in)	37 of 100 (Notable)
Dalatangi	Iceland	Record high maximum temperature	18.1 C (64.6 F)	37 of 100 (Notable)
Ellsworth 2W	United States	Record snow depth	25.4 cm (10.0 in)	37 of 100 (Notable)
Columbia Rgnl AP	United States	Record daily precipitation	61.0 mm (2.4 in)	37 of 100 (Notable)
El Centro Naf	United States	Record low minimum temperature	3.9 C (39.0 F)	37 of 100 (Notable)

Counts by Type and Timescale

502 records

Records set or tied on 17 March 2021 by type: Highest daily maximum 66, Lowest daily maximum 53, Highest daily minimum 56, Lowest daily minimum 68, Heaviest daily rainfall 203, Heaviest daily snowfall 14, Deepest snow cover 42.

Records on 17 March 2021 by type
Record type	Records
Highest daily maximum	66
Lowest daily maximum	53
Highest daily minimum	56
Lowest daily minimum	68
Heaviest daily rainfall	203
Heaviest daily snowfall	14
Deepest snow cover	42

Records on 17 March 2021 by timescale: all-time 0, monthly 9, daily 493.

How Much Records Were Beaten By

428 broken records

Margins by which the 428 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 381.0. Ties are not counted.

Top 20 by Significance

17 March 2021

Top 20 records on 17 March 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 March 2021	Yaamba, AU	daily rain	160.0 mm (6.3 in)	123.2 mm (4.9 in)	82 years	74 of 100 (Major)
17 March 2021	Sapphire Post Office, AU	daily rain	98.0 mm (3.9 in)	71.6 mm (2.8 in)	64 years	68 of 100 (Major)
17 March 2021	Sisian, AM	daily rain	99.1 mm (3.9 in)	90.4 mm (3.6 in)	62 years	66 of 100 (Major)
17 March 2021	Scottsbluff W B Heilig Fld AP, US	daily snow depth	23.0 cm (9.1 in)	12.8 cm (5.0 in)	121 years	62 of 100 (Major)
17 March 2021	Muscle Shoals AP, US	daily rain	120.4 mm (4.7 in)	85.9 mm (3.4 in)	36 years	59 of 100 (Notable)
17 March 2021	Wansey Downs, AU	daily rain	75.4 mm (3.0 in)	63.6 mm (2.5 in)	46 years	58 of 100 (Notable)
17 March 2021	Cecil Plains Homestead, AU	daily rain	45.4 mm (1.8 in)	29.4 mm (1.2 in)	120 years	57 of 100 (Notable)
17 March 2021	Aramac Post Office, AU	daily rain	77.0 mm (3.0 in)	58.5 mm (2.3 in)	52 years	56 of 100 (Notable)
17 March 2021	Gue, AU	daily rain	48.6 mm (1.9 in)	48.6 mm (1.9 in)	83 years	56 of 100 (Notable)
17 March 2021	Sybille Rsch Unit, US	daily snow depth	55.9 cm (22.0 in)	38.1 cm (15.0 in)	38 years	56 of 100 (Notable)
17 March 2021	Mitchell Post Office, AU	daily rain	72.8 mm (2.9 in)	28.3 mm (1.1 in)	95 years	54 of 100 (Notable)
17 March 2021	Yuleba Garden St, AU	daily rain	78.5 mm (3.1 in)	46.7 mm (1.8 in)	68 years	54 of 100 (Notable)
17 March 2021	Milford, US	daily snow depth	20.3 cm (8.0 in)	15.2 cm (6.0 in)	76 years	54 of 100 (Notable)
17 March 2021	Nive Downs, AU	monthly rain	116.0 mm (4.6 in)	25.8 mm (1.0 in)	57 years	53 of 100 (Notable)
17 March 2021	Bucuresti-Baneasa, RO	daily rain	26.4 mm (1.0 in)	18.0 mm (0.7 in)	59 years	53 of 100 (Notable)
17 March 2021	Perola Park, AU	daily rain	87.0 mm (3.4 in)	33.2 mm (1.3 in)	84 years	52 of 100 (Notable)
17 March 2021	Wharton Creek Station, AU	daily rain	70.0 mm (2.8 in)	48.4 mm (1.9 in)	52 years	50 of 100 (Notable)
17 March 2021	Ottawa, US	daily rain	39.9 mm (1.6 in)	9.7 mm (0.38 in)	116 years	49 of 100 (Notable)
17 March 2021	Batesburg, US	daily rain	62.2 mm (2.4 in)	13.2 mm (0.5 in)	100 years	49 of 100 (Notable)
17 March 2021	Anakie Richardson St, AU	monthly rain	118.0 mm (4.6 in)	13.9 mm (0.5 in)	71 years	48 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

1825 to 2021

Records set or tied on this calendar date in each year from 1825 to 2021. 2021 had 502 records.

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

Records on 03-17 in each year
Year	Records
1825	2
1839	1
1845	1
1850	2
1852	1
1853	1
1856	1
1857	1
1863	1
1866	2
1867	1
1869	1
1870	1
1872	1
1874	3
1876	1
1877	2
1878	3
1879	1
1881	1
1882	4
1883	1
1884	3
1885	3
1886	1
1887	3
1888	2
1889	3
1890	2
1892	1
1895	5
1896	2
1897	9
1898	14
1899	5
1900	5
1901	4
1902	16
1903	10
1904	11
1905	10
1906	15
1907	14
1908	20
1909	20
1910	17
1911	7
1912	7
1913	31
1914	28
1915	22
1916	40
1917	52
1918	26
1919	86
1920	50
1921	96
1922	49
1923	130
1924	78
1925	143
1926	185
1927	369
1928	230
1929	85
1930	306
1931	124
1932	484
1933	198
1934	368
1935	259
1936	601
1937	455
1938	394
1939	583
1940	250
1941	689
1942	783
1943	500
1944	288
1945	1,345
1946	810
1947	332
1948	340
1949	178
1950	1,105
1951	489
1952	527
1953	236
1954	365
1955	385
1956	573
1957	327
1958	535
1959	471
1960	814
1961	679
1962	321
1963	738
1964	241
1965	1,115
1966	970
1967	856
1968	849
1969	651
1970	768
1971	361
1972	1,013
1973	943
1974	837
1975	475
1976	534
1977	479
1978	787
1979	507
1980	658
1981	679
1982	1,315
1983	912
1984	599
1985	662
1986	551
1987	1,362
1988	1,325
1989	1,082
1990	1,916
1991	756
1992	740
1993	1,608
1994	822
1995	989
1996	689
1997	895
1998	972
1999	688
2000	792
2001	1,349
2002	1,210
2003	1,244
2004	1,406
2005	1,475
2006	579
2007	1,470
2008	955
2009	717
2010	584
2011	926
2012	2,715
2013	723
2014	1,039
2015	1,145
2016	545
2017	847
2018	891
2019	738
2020	454
2021	502
2022	452
2023	875
2024	668
2025	722
2026	2,522

Download the Data

Data for records on 2021-03-17: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	383
50 to 100	28
100 to 150	10
150 to 200	2
200 to 250	0
250 to 300	2
300 to 350	1
350 to 400	2