Weather Records on 15 March 2021

916 weather records were set or tied worldwide on 15 March 2021. Highest significance: O'Neill, US.

Key Facts for 15 March 2021

On 15 March 2021, 916 weather records were set or tied at long-record stations worldwide.
156 were record highs and 219 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 21 monthly and 892 daily.
O'Neill set a daily record precipitation of 48.8 mm (1.9 in) on 15 March 2021.
Across 161 earlier years (1810 to 2026) the same calendar date averaged 483 records.

Record Map

916 stations

916 station records on 15 March 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 March 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
O'Neill	United States	Record daily precipitation	48.8 mm (1.9 in)	74 of 100 (Major)
W Pt	United States	Record daily precipitation	59.4 mm (2.3 in)	72 of 100 (Major)
Cottonwood 2 E	United States	Record daily snowfall	20.3 cm (8.0 in)	71 of 100 (Major)
Castle Rock	United States	Record daily precipitation	38.6 mm (1.5 in)	68 of 100 (Major)
Casper-Natrona Co AP	United States	Record snow depth	46.0 cm (18.1 in)	68 of 100 (Major)
Grafton Research STN	Australia	Record daily precipitation	64.0 mm (2.5 in)	67 of 100 (Major)
Longmont 2 ESE	United States	Record snow depth	50.8 cm (20.0 in)	67 of 100 (Major)
Hebron	United States	Record daily precipitation	46.0 mm (1.8 in)	66 of 100 (Major)
Springview 2NW	United States	Record daily snowfall	27.9 cm (11.0 in)	66 of 100 (Major)
Tekamah	United States	Record daily precipitation	55.9 mm (2.2 in)	66 of 100 (Major)
Interior 3 NE	United States	Record daily snowfall	25.4 cm (10.0 in)	65 of 100 (Major)
South West Rocks (Smoky Cape L	Australia	Record daily precipitation	133.0 mm (5.2 in)	64 of 100 (Major)
Sybille Rsch Unit	United States	Record daily snowfall	71.1 cm (28.0 in)	63 of 100 (Major)
Harrisburg 12WNW	United States	Record daily precipitation	50.0 mm (2.0 in)	62 of 100 (Major)
Kassler	United States	Record snow depth	35.6 cm (14.0 in)	61 of 100 (Major)
Neligh	United States	Record daily precipitation	55.4 mm (2.2 in)	61 of 100 (Major)
Bowraville Recreation Club	Australia	Record daily precipitation	106.0 mm (4.2 in)	60 of 100 (Major)
Kassler	United States	Record daily snowfall	36.3 cm (14.3 in)	59 of 100 (Notable)
Howells	United States	Record daily precipitation	61.7 mm (2.4 in)	59 of 100 (Notable)
Wallace 2W	United States	Record daily precipitation	25.4 mm (1.0 in)	59 of 100 (Notable)
Longmont 2 ESE	United States	Record daily snowfall	25.7 cm (10.1 in)	58 of 100 (Notable)
Oakdale	United States	Record daily precipitation	47.2 mm (1.9 in)	58 of 100 (Notable)
Leonard Creek Rch - Denio 33S	United States	Record daily precipitation	25.4 mm (1.0 in)	58 of 100 (Notable)
Oelrichs	United States	Record daily snowfall	35.6 cm (14.0 in)	58 of 100 (Notable)
Ruby Plains	Australia	Record daily precipitation	62.0 mm (2.4 in)	57 of 100 (Notable)
Willow Tree (Yarrabah)	Australia	Record daily precipitation	58.2 mm (2.3 in)	57 of 100 (Notable)
Lake Margaret Dam	Australia	Record daily precipitation	89.8 mm (3.5 in)	57 of 100 (Notable)
Lakewood	United States	Record daily snowfall	33.0 cm (13.0 in)	56 of 100 (Notable)
Shenandoah	United States	Record daily precipitation	46.2 mm (1.8 in)	56 of 100 (Notable)
Greeley	United States	Record daily precipitation	56.1 mm (2.2 in)	56 of 100 (Notable)
Elderslie	Australia	Record daily precipitation	68.0 mm (2.7 in)	55 of 100 (Notable)
Akron 4 E	United States	Record daily precipitation	29.2 mm (1.1 in)	55 of 100 (Notable)
Joes	United States	Record daily precipitation	27.9 mm (1.1 in)	54 of 100 (Notable)
Lakewood	United States	Record snow depth	40.6 cm (16.0 in)	54 of 100 (Notable)
Canton	United States	Record daily snowfall	15.2 cm (6.0 in)	54 of 100 (Notable)
Milford	United States	Record snow depth	30.5 cm (12.0 in)	54 of 100 (Notable)
Primghar	United States	Record daily precipitation	37.3 mm (1.5 in)	53 of 100 (Notable)
Montrose	United States	Record daily snowfall	16.5 cm (6.5 in)	53 of 100 (Notable)
Waterdale	United States	Record snow depth	40.6 cm (16.0 in)	52 of 100 (Notable)
Ericson 8 WNW	United States	Record daily precipitation	52.6 mm (2.1 in)	52 of 100 (Notable)
Lyons	United States	Record daily precipitation	49.0 mm (1.9 in)	52 of 100 (Notable)
Oakland	United States	Record daily precipitation	46.0 mm (1.8 in)	51 of 100 (Notable)
Broken Bow 2 W	United States	Record daily precipitation	29.0 mm (1.1 in)	51 of 100 (Notable)
Custer	United States	Record snow depth	33.0 cm (13.0 in)	51 of 100 (Notable)
Winner	United States	Record daily precipitation	33.0 mm (1.3 in)	51 of 100 (Notable)
Nicholson	Australia	Record daily precipitation	132.0 mm (5.2 in)	50 of 100 (Notable)
Sanborn	United States	Record daily precipitation	38.6 mm (1.5 in)	50 of 100 (Notable)
Hill City	United States	Record daily snowfall	22.4 cm (8.8 in)	50 of 100 (Notable)
Oswego 1 N	United States	Record daily precipitation	82.6 mm (3.3 in)	49 of 100 (Notable)
Osceola	United States	Record daily precipitation	51.1 mm (2.0 in)	49 of 100 (Notable)
Gresford Post Office	Australia	Record daily precipitation	72.0 mm (2.8 in)	47 of 100 (Notable)
Ekimchan	Russia	Record high maximum temperature	10.1 C (50.2 F)	47 of 100 (Notable)
Carrollton	United States	Record daily precipitation	42.4 mm (1.7 in)	47 of 100 (Notable)
Saint Paul	United States	Record daily precipitation	33.8 mm (1.3 in)	47 of 100 (Notable)
Faulkton	United States	Record daily snowfall	12.7 cm (5.0 in)	47 of 100 (Notable)
Cuba City	United States	Record daily snowfall	7.6 cm (3.0 in)	47 of 100 (Notable)
Lichinga	Mozambique	Record low minimum temperature	10.5 C (50.9 F)	46 of 100 (Notable)
Ft Morgan	United States	Record snow depth	15.2 cm (6.0 in)	46 of 100 (Notable)
Loveland 2N	United States	Record daily precipitation	45.5 mm (1.8 in)	46 of 100 (Notable)
Hubbell	United States	Record daily precipitation	40.9 mm (1.6 in)	46 of 100 (Notable)

Counts by Type and Timescale

916 records

Records set or tied on 15 March 2021 by type: Highest daily maximum 99, Lowest daily maximum 134, Highest daily minimum 57, Lowest daily minimum 85, Heaviest daily rainfall 380, Heaviest daily snowfall 112, Deepest snow cover 49.

Records on 15 March 2021 by type
Record type	Records
Highest daily maximum	99
Lowest daily maximum	134
Highest daily minimum	57
Lowest daily minimum	85
Heaviest daily rainfall	380
Heaviest daily snowfall	112
Deepest snow cover	49

Records on 15 March 2021 by timescale: all-time 3, monthly 21, daily 892.

How Much Records Were Beaten By

822 broken records

Margins by which the 822 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 432.0. Ties are not counted.

Top 20 by Significance

15 March 2021

Top 20 records on 15 March 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 March 2021	O'Neill, US	daily rain	48.8 mm (1.9 in)	34.3 mm (1.4 in)	83 years	74 of 100 (Major)
15 March 2021	W Pt, US	daily rain	59.4 mm (2.3 in)	36.5 mm (1.4 in)	76 years	72 of 100 (Major)
15 March 2021	Cottonwood 2 E, US	daily snowfall	20.3 cm (8.0 in)	15.2 cm (6.0 in)	104 years	71 of 100 (Major)
15 March 2021	Castle Rock, US	daily rain	38.6 mm (1.5 in)	24.9 mm (1.0 in)	92 years	68 of 100 (Major)
15 March 2021	Casper-Natrona Co AP, US	monthly snow depth	46.0 cm (18.1 in)	15.5 cm (6.1 in)	66 years	68 of 100 (Major)
15 March 2021	Grafton Research STN, AU	daily rain	64.0 mm (2.5 in)	38.9 mm (1.5 in)	100 years	67 of 100 (Major)
15 March 2021	Longmont 2 ESE, US	monthly snow depth	50.8 cm (20.0 in)	10.2 cm (4.0 in)	109 years	67 of 100 (Major)
15 March 2021	Hebron, US	daily rain	46.0 mm (1.8 in)	23.1 mm (0.9 in)	98 years	66 of 100 (Major)
15 March 2021	Springview 2NW, US	daily snowfall	27.9 cm (11.0 in)	22.8 cm (9.0 in)	60 years	66 of 100 (Major)
15 March 2021	Tekamah, US	daily rain	55.9 mm (2.2 in)	29.2 mm (1.1 in)	76 years	66 of 100 (Major)
15 March 2021	Interior 3 NE, US	daily snowfall	25.4 cm (10.0 in)	22.9 cm (9.0 in)	60 years	65 of 100 (Major)
15 March 2021	South West Rocks (Smoky Cape L, AU	daily rain	133.0 mm (5.2 in)	73.1 mm (2.9 in)	74 years	64 of 100 (Major)
15 March 2021	Sybille Rsch Unit, US	monthly snowfall	71.1 cm (28.0 in)	25.4 cm (10.0 in)	31 years	63 of 100 (Major)
15 March 2021	Harrisburg 12WNW, US	monthly rain	50.0 mm (2.0 in)	8.1 mm (0.32 in)	93 years	62 of 100 (Major)
15 March 2021	Kassler, US	daily snow depth	35.6 cm (14.0 in)	15.3 cm (6.0 in)	96 years	61 of 100 (Major)
15 March 2021	Neligh, US	daily rain	55.4 mm (2.2 in)	39.4 mm (1.6 in)	38 years	61 of 100 (Major)
15 March 2021	Bowraville Recreation Club, AU	daily rain	106.0 mm (4.2 in)	44.5 mm (1.8 in)	126 years	60 of 100 (Major)
15 March 2021	Kassler, US	daily snowfall	36.3 cm (14.3 in)	23.6 cm (9.3 in)	60 years	59 of 100 (Notable)
15 March 2021	Howells, US	daily rain	61.7 mm (2.4 in)	38.8 mm (1.5 in)	38 years	59 of 100 (Notable)
15 March 2021	Wallace 2W, US	daily rain	25.4 mm (1.0 in)	19.3 mm (0.8 in)	68 years	59 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

1810 to 2021

Records set or tied on this calendar date in each year from 1810 to 2021. 2021 had 916 records.

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

Records on 03-15 in each year
Year	Records
1810	1
1813	1
1825	1
1826	1
1828	1
1835	1
1836	2
1839	1
1840	1
1845	3
1846	1
1850	1
1852	2
1854	1
1859	3
1863	1
1867	1
1869	1
1878	1
1882	3
1883	1
1884	3
1886	1
1887	1
1888	3
1889	3
1890	3
1891	5
1892	6
1893	5
1894	1
1895	4
1896	5
1898	3
1899	5
1900	12
1901	11
1902	14
1903	9
1904	6
1905	14
1906	36
1907	16
1908	43
1909	13
1910	23
1911	27
1912	51
1913	79
1914	32
1915	11
1916	34
1917	36
1918	81
1919	40
1920	43
1921	140
1922	39
1923	134
1924	145
1925	72
1926	169
1927	332
1928	193
1929	267
1930	240
1931	122
1932	610
1933	167
1934	298
1935	617
1936	298
1937	711
1938	505
1939	336
1940	340
1941	259
1942	399
1943	639
1944	622
1945	895
1946	915
1947	374
1948	198
1949	409
1950	249
1951	334
1952	358
1953	298
1954	340
1955	419
1956	534
1957	485
1958	431
1959	348
1960	972
1961	430
1962	585
1963	297
1964	411
1965	174
1966	893
1967	831
1968	545
1969	933
1970	541
1971	772
1972	814
1973	1,074
1974	439
1975	713
1976	220
1977	787
1978	566
1979	997
1980	503
1981	799
1982	997
1983	844
1984	638
1985	519
1986	771
1987	687
1988	1,599
1989	1,221
1990	2,255
1991	852
1992	1,131
1993	3,353
1994	1,405
1995	1,372
1996	706
1997	1,500
1998	847
1999	1,269
2000	458
2001	930
2002	1,317
2003	1,157
2004	1,046
2005	1,099
2006	688
2007	1,420
2008	903
2009	744
2010	675
2011	730
2012	2,297
2013	1,486
2014	397
2015	1,573
2016	948
2017	1,497
2018	538
2019	861
2020	1,128
2021	916
2022	491
2023	768
2024	1,401
2025	1,162
2026	877

Download the Data

Data for records on 2021-03-15: 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).

Histogram of margins by which records were beaten on 15 March 2021
Margin	Records
0 to 100	772
100 to 200	32
200 to 300	12
300 to 400	5
400 to 500	1