Weather Records on 4 March 1940

242 weather records were set or tied worldwide on 4 March 1940. Highest significance: Dawson, US.

Key Facts for 4 March 1940

On 4 March 1940, 242 weather records were set or tied at long-record stations worldwide.
71 were record highs and 11 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 238 daily.
Dawson set a daily record snowfall of 35.6 cm (14.0 in) on 4 March 1940.
Across 167 earlier years (1801 to 2026) the same calendar date averaged 495 records.

Record Map

242 stations

242 station records on 4 March 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 March 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dawson	United States	Record daily snowfall	35.6 cm (14.0 in)	51 of 100 (Notable)
Pastura 6 SSE	United States	Record daily precipitation	38.1 mm (1.5 in)	49 of 100 (Notable)
Wilmington City Hall	United States	Record daily precipitation	44.5 mm (1.8 in)	41 of 100 (Notable)
Moorestown 4 E	United States	Record daily precipitation	51.1 mm (2.0 in)	40 of 100 (Notable)
Las Vegas 2 NW	United States	Record daily snowfall	30.5 cm (12.0 in)	40 of 100 (Notable)
Gloversville	United States	Record daily precipitation	47.0 mm (1.9 in)	40 of 100 (Notable)
Setauket Strong	United States	Record daily precipitation	58.2 mm (2.3 in)	37 of 100 (Notable)
Klipplaatdrift (Skl)	South Africa	Record daily precipitation	52.8 mm (2.1 in)	36 of 100 (Notable)
Cream Hill	United States	Record daily precipitation	37.1 mm (1.5 in)	36 of 100 (Notable)
Somerville 4 NW	United States	Record daily precipitation	45.5 mm (1.8 in)	35 of 100 (Notable)
Vaughn	United States	Record daily snowfall	30.5 cm (12.0 in)	35 of 100 (Notable)
Bateman Rch	United States	Record daily precipitation	27.9 mm (1.1 in)	34 of 100 (Routine)
Bateman Rch	United States	Record daily snowfall	27.9 cm (11.0 in)	33 of 100 (Routine)
Las Vegas 2 NW	United States	Record daily precipitation	25.9 mm (1.0 in)	33 of 100 (Routine)
Mistassini Post	Canada	Record daily snowfall	15.2 cm (6.0 in)	32 of 100 (Routine)
Storrs	United States	Record daily precipitation	43.4 mm (1.7 in)	32 of 100 (Routine)
Belvidere	United States	Record daily precipitation	39.1 mm (1.5 in)	32 of 100 (Routine)
Aurora	United States	Record daily snowfall	29.5 cm (11.6 in)	32 of 100 (Routine)
Springer	United States	Record daily snowfall	14.0 cm (5.5 in)	32 of 100 (Routine)
Culvers Lake	United States	Record daily precipitation	29.7 mm (1.2 in)	31 of 100 (Routine)
Bainbridge 2 E	United States	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Clayoquot	Canada	Record daily precipitation	75.2 mm (3.0 in)	30 of 100 (Routine)
Charlotteburg Rsvr	United States	Record daily precipitation	32.3 mm (1.3 in)	30 of 100 (Routine)
Pleasantville 1 N	United States	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Cimarron 4 SW	United States	Record daily snowfall	20.3 cm (8.0 in)	30 of 100 (Routine)
Roy	United States	Record daily snowfall	10.2 cm (4.0 in)	30 of 100 (Routine)
Wappingers Falls	United States	Record daily precipitation	38.9 mm (1.5 in)	30 of 100 (Routine)
Quakertown	United States	Record daily precipitation	51.6 mm (2.0 in)	30 of 100 (Routine)
Poronajsk	Russia	Record high maximum temperature	8.0 C (46.4 F)	29 of 100 (Routine)
Winchendon	United States	Record daily precipitation	29.5 mm (1.2 in)	28 of 100 (Routine)
Boonton 1 SE	United States	Record daily precipitation	25.7 mm (1.0 in)	28 of 100 (Routine)
Cimarron 4 SW	United States	Record snow depth	15.2 cm (6.0 in)	28 of 100 (Routine)
World Trade Ctr	United States	Record daily precipitation	31.0 mm (1.2 in)	27 of 100 (Routine)
Spier Falls	United States	Record daily precipitation	28.2 mm (1.1 in)	27 of 100 (Routine)
Cumberland Station	Australia	Record daily precipitation	60.2 mm (2.4 in)	26 of 100 (Routine)
Sion	Canada	Record daily snowfall	7.6 cm (3.0 in)	26 of 100 (Routine)
Bedford Hills	United States	Record daily precipitation	44.5 mm (1.8 in)	26 of 100 (Routine)
Doylestown	United States	Record daily precipitation	46.7 mm (1.8 in)	26 of 100 (Routine)
Altentreptow	Germany	Record snow depth	22.0 cm (8.7 in)	25 of 100 (Routine)
Delaware Cy Reedy Poin	United States	Record daily precipitation	43.2 mm (1.7 in)	25 of 100 (Routine)
Pottsville	United States	Record daily precipitation	29.7 mm (1.2 in)	25 of 100 (Routine)
Freehold-Marlboro	United States	Record daily precipitation	30.5 mm (1.2 in)	24 of 100 (Routine)
Woodhouse	Australia	Record daily precipitation	38.1 mm (1.5 in)	23 of 100 (Routine)
Anticosti SW Point	Canada	Record high maximum temperature	4.4 C (39.9 F)	23 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record high minimum temperature	-5.0 C (23.0 F)	23 of 100 (Routine)
Darlington	United States	Record daily precipitation	47.8 mm (1.9 in)	23 of 100 (Routine)
Groton	United States	Record daily precipitation	27.4 mm (1.1 in)	23 of 100 (Routine)
Flemington 5 NNW	United States	Record daily precipitation	30.7 mm (1.2 in)	23 of 100 (Routine)
Phillipsburg	United States	Record daily precipitation	34.8 mm (1.4 in)	23 of 100 (Routine)
Broome Post Office	Australia	Record low minimum temperature	21.1 C (70.0 F)	22 of 100 (Routine)
Marble Bar Comparison	Australia	Record low minimum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Mohonk Lake	United States	Record daily precipitation	40.4 mm (1.6 in)	22 of 100 (Routine)
Hillsdown	Canada	Record daily snowfall	7.6 cm (3.0 in)	21 of 100 (Routine)
Tuckerton 2 NE	United States	Record daily precipitation	43.7 mm (1.7 in)	21 of 100 (Routine)
Olympia Priest Pt Park	United States	Record high minimum temperature	6.7 C (44.1 F)	21 of 100 (Routine)
Roy	United States	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Springer	United States	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Sveg	Sweden	Record daily precipitation	14.1 mm (0.6 in)	20 of 100 (Routine)
Vaughn	United States	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Visby_Flygplats	Sweden	Record daily precipitation	11.3 mm (0.4 in)	20 of 100 (Routine)

Counts by Type and Timescale

242 records

Records set or tied on 4 March 1940 by type: Highest daily maximum 22, Lowest daily maximum 3, Highest daily minimum 49, Lowest daily minimum 8, Heaviest daily rainfall 130, Heaviest daily snowfall 21, Deepest snow cover 9.

Records on 4 March 1940 by type
Record type	Records
Highest daily maximum	22
Lowest daily maximum	3
Highest daily minimum	49
Lowest daily minimum	8
Heaviest daily rainfall	130
Heaviest daily snowfall	21
Deepest snow cover	9

Records on 4 March 1940 by timescale: all-time 0, monthly 4, daily 238.

How Much Records Were Beaten By

209 broken records

Margins by which the 209 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 331.0. Ties are not counted.

Top 20 by Significance

4 March 1940

Top 20 records on 4 March 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 March 1940	Dawson, US	daily snowfall	35.6 cm (14.0 in)	33.1 cm (13.0 in)	28 years	51 of 100 (Notable)
4 March 1940	Pastura 6 SSE, US	monthly rain	38.1 mm (1.5 in)	14.2 mm (0.6 in)	20 years	49 of 100 (Notable)
4 March 1940	Wilmington City Hall, US	daily rain	44.5 mm (1.8 in)	30.5 mm (1.2 in)	31 years	41 of 100 (Notable)
4 March 1940	Moorestown 4 E, US	daily rain	51.1 mm (2.0 in)	26.0 mm (1.0 in)	23 years	40 of 100 (Notable)
4 March 1940	Las Vegas 2 NW, US	daily snowfall	30.5 cm (12.0 in)	20.3 cm (8.0 in)	17 years	40 of 100 (Notable)
4 March 1940	Gloversville, US	daily rain	47.0 mm (1.9 in)	22.1 mm (0.9 in)	34 years	40 of 100 (Notable)
4 March 1940	Setauket Strong, US	daily rain	58.2 mm (2.3 in)	32.0 mm (1.3 in)	23 years	37 of 100 (Notable)
4 March 1940	Klipplaatdrift (Skl), ZA	daily rain	52.8 mm (2.1 in)	26.4 mm (1.0 in)	24 years	36 of 100 (Notable)
4 March 1940	Cream Hill, US	daily rain	37.1 mm (1.5 in)	21.9 mm (0.9 in)	23 years	36 of 100 (Notable)
4 March 1940	Somerville 4 NW, US	daily rain	45.5 mm (1.8 in)	16.3 mm (0.6 in)	40 years	35 of 100 (Notable)
4 March 1940	Vaughn, US	monthly snowfall	30.5 cm (12.0 in)	10.2 cm (4.0 in)	8 years	35 of 100 (Notable)
4 March 1940	Bateman Rch, US	daily rain	27.9 mm (1.1 in)	17.7 mm (0.7 in)	28 years	34 of 100 (Routine)
4 March 1940	Bateman Rch, US	daily snowfall	27.9 cm (11.0 in)	17.7 cm (7.0 in)	5 years	33 of 100 (Routine)
4 March 1940	Las Vegas 2 NW, US	daily rain	25.9 mm (1.0 in)	16.0 mm (0.6 in)	17 years	33 of 100 (Routine)
4 March 1940	Mistassini Post, CA	daily snowfall	15.2 cm (6.0 in)	8.8 cm (3.5 in)	21 years	32 of 100 (Routine)
4 March 1940	Storrs, US	daily rain	43.4 mm (1.7 in)	32.2 mm (1.3 in)	11 years	32 of 100 (Routine)
4 March 1940	Belvidere, US	daily rain	39.1 mm (1.5 in)	16.2 mm (0.6 in)	40 years	32 of 100 (Routine)
4 March 1940	Aurora, US	daily snowfall	29.5 cm (11.6 in)	18.1 cm (7.1 in)	28 years	32 of 100 (Routine)
4 March 1940	Springer, US	daily snowfall	14.0 cm (5.5 in)	11.5 cm (4.5 in)	25 years	32 of 100 (Routine)
4 March 1940	Culvers Lake, US	daily rain	29.7 mm (1.2 in)	17.0 mm (0.7 in)	31 years	31 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

1801 to 1940

Records set or tied on this calendar date in each year from 1801 to 1940. 1940 had 242 records.

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

Records on 03-04 in each year
Year	Records
1801	1
1804	1
1810	1
1814	1
1816	1
1817	1
1837	1
1842	1
1843	1
1845	5
1846	1
1851	1
1852	2
1853	1
1857	1
1859	2
1862	1
1863	1
1868	1
1871	1
1872	1
1873	2
1874	1
1875	2
1876	1
1878	1
1880	6
1881	5
1882	2
1884	1
1886	3
1888	4
1889	3
1890	7
1891	3
1892	1
1893	2
1894	1
1895	2
1896	11
1897	2
1900	1
1901	3
1902	5
1903	18
1904	8
1905	8
1906	14
1907	13
1908	15
1909	23
1910	7
1911	6
1912	46
1913	23
1914	27
1915	27
1916	37
1917	51
1918	79
1919	162
1920	76
1921	99
1922	59
1923	206
1924	139
1925	272
1926	144
1927	132
1928	100
1929	252
1930	148
1931	295
1932	341
1933	357
1934	402
1935	528
1936	171
1937	336
1938	628
1939	278
1940	242
1941	278
1942	266
1943	1,123
1944	564
1945	465
1946	679
1947	407
1948	698
1949	299
1950	638
1951	740
1952	747
1953	540
1954	528
1955	1,317
1956	504
1957	294
1958	414
1959	743
1960	2,289
1961	773
1962	536
1963	502
1964	677
1965	855
1966	1,050
1967	359
1968	1,100
1969	252
1970	332
1971	1,217
1972	632
1973	569
1974	1,456
1975	514
1976	1,696
1977	1,240
1978	1,905
1979	1,100
1980	742
1981	742
1982	758
1983	2,210
1984	671
1985	1,118
1986	1,113
1987	1,577
1988	924
1989	1,369
1990	738
1991	1,343
1992	1,283
1993	749
1994	959
1995	1,062
1996	727
1997	1,013
1998	1,720
1999	990
2000	878
2001	762
2002	2,015
2003	861
2004	1,092
2005	782
2006	711
2007	779
2008	919
2009	1,460
2010	517
2011	682
2012	755
2013	708
2014	1,792
2015	577
2016	748
2017	571
2018	645
2019	2,178
2020	873
2021	492
2022	516
2023	807
2024	1,328
2025	695
2026	747

Download the Data

Data for records on 1940-03-04: 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).

Margin	Records
0 to 50	190
50 to 100	9
100 to 150	4
150 to 200	4
200 to 250	1
250 to 300	0
300 to 350	1