Weather Records on 17 March 1943

500 weather records were set or tied worldwide on 17 March 1943. Highest significance: Epping, US.

Key Facts for 17 March 1943

On 17 March 1943, 500 weather records were set or tied at long-record stations worldwide.
56 were record highs and 287 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 5 monthly and 494 daily.
Epping set a monthly record daily precipitation of 33.0 mm (1.3 in) on 17 March 1943.
Across 161 earlier years (1825 to 2026) the same calendar date averaged 475 records.

Record Map

500 stations

500 station records on 17 March 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 March 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Epping	United States	Record daily precipitation	33.0 mm (1.3 in)	53 of 100 (Notable)
Montevideo 1SW	United States	Record daily precipitation	32.3 mm (1.3 in)	50 of 100 (Notable)
Highland Home	United States	Record daily precipitation	120.9 mm (4.8 in)	47 of 100 (Notable)
Columbus Dardc	United States	Record daily precipitation	103.6 mm (4.1 in)	45 of 100 (Notable)
Dickinson Exp STN	United States	Record snow depth	20.3 cm (8.0 in)	41 of 100 (Notable)
Franklin 3 NW	United States	Record daily precipitation	64.0 mm (2.5 in)	39 of 100 (Notable)
Fortine 1 N	United States	Record low minimum temperature	-28.9 C (-20.0 F)	37 of 100 (Notable)
Livermore	United States	Record daily precipitation	26.7 mm (1.1 in)	34 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record high maximum temperature	34.7 C (94.5 F)	33 of 100 (Routine)
Union Springs 9 S	United States	Record daily precipitation	180.3 mm (7.1 in)	33 of 100 (Routine)
Lima Wwtp	United States	Record daily precipitation	37.6 mm (1.5 in)	33 of 100 (Routine)
Kaslo	Canada	Record low minimum temperature	-15.6 C (3.9 F)	32 of 100 (Routine)
Salmon Arm	Canada	Record low minimum temperature	-17.8 C (0.0 F)	32 of 100 (Routine)
Britton	United States	Record snow depth	45.7 cm (18.0 in)	32 of 100 (Routine)
Columbia	United States	Record daily precipitation	74.4 mm (2.9 in)	31 of 100 (Routine)
Jamestown State Hosp	United States	Record daily snowfall	11.4 cm (4.5 in)	31 of 100 (Routine)
Georgetown 2 E	United States	Record high minimum temperature	20.6 C (69.1 F)	31 of 100 (Routine)
Experiment	United States	Record daily precipitation	56.9 mm (2.2 in)	30 of 100 (Routine)
Franklinton	United States	Record daily precipitation	68.3 mm (2.7 in)	30 of 100 (Routine)
Tarnaby	Sweden	Record snow depth	185.0 cm (72.8 in)	29 of 100 (Routine)
Butler	United States	Record daily precipitation	65.8 mm (2.6 in)	29 of 100 (Routine)
Amite	United States	Record daily precipitation	72.9 mm (2.9 in)	29 of 100 (Routine)
Big Timber	United States	Record low minimum temperature	-25.0 C (-13.0 F)	29 of 100 (Routine)
Glacier	Canada	Record low minimum temperature	-22.2 C (-8.0 F)	28 of 100 (Routine)
Vestervig	Denmark	Record high maximum temperature	11.8 C (53.2 F)	28 of 100 (Routine)
Dunderlandsdalen	Norway	Record snow depth	231.0 cm (90.9 in)	28 of 100 (Routine)
Billings Wtp	United States	Record low minimum temperature	-28.3 C (-18.9 F)	28 of 100 (Routine)
Crow Agency	United States	Record low minimum temperature	-32.2 C (-26.0 F)	28 of 100 (Routine)
Rossland City Yard	Canada	Record low minimum temperature	-13.9 C (7.0 F)	27 of 100 (Routine)
Armstrong	Canada	Record low minimum temperature	-19.4 C (-2.9 F)	27 of 100 (Routine)
Portage la Prairie	Canada	Record low minimum temperature	-17.2 C (1.0 F)	27 of 100 (Routine)
Huntley Exp STN	United States	Record low minimum temperature	-31.1 C (-24.0 F)	27 of 100 (Routine)
Steveston	Canada	Record low minimum temperature	-5.0 C (23.0 F)	26 of 100 (Routine)
Portage la Prairie	Canada	Record low maximum temperature	-11.1 C (12.0 F)	26 of 100 (Routine)
Baton Rouge	United States	Record daily precipitation	82.3 mm (3.2 in)	26 of 100 (Routine)
Hattiesburg 5SW	United States	Record daily precipitation	63.8 mm (2.5 in)	26 of 100 (Routine)
Busby	United States	Record low minimum temperature	-31.7 C (-25.1 F)	26 of 100 (Routine)
Choteau	United States	Record low minimum temperature	-27.8 C (-18.0 F)	26 of 100 (Routine)
Towner 2 NE	United States	Record low maximum temperature	-16.1 C (3.0 F)	26 of 100 (Routine)
Piqua	United States	Record daily precipitation	39.4 mm (1.6 in)	26 of 100 (Routine)
Emerson	Canada	Record low maximum temperature	-12.2 C (10.0 F)	25 of 100 (Routine)
Skjomen	Norway	Record snow depth	75.0 cm (29.5 in)	25 of 100 (Routine)
Goat Rock	United States	Record daily precipitation	57.2 mm (2.3 in)	25 of 100 (Routine)
Coeur D'Alene	United States	Record low minimum temperature	-14.4 C (6.1 F)	25 of 100 (Routine)
Butte Bert Mooney AP	United States	Record low minimum temperature	-27.8 C (-18.0 F)	25 of 100 (Routine)
Tappen	Canada	Record low minimum temperature	-14.4 C (6.1 F)	24 of 100 (Routine)
Tranquille	Canada	Record low minimum temperature	-12.2 C (10.0 F)	24 of 100 (Routine)
Vavenby	Canada	Record low minimum temperature	-22.2 C (-8.0 F)	24 of 100 (Routine)
Edmonton	Canada	Record low minimum temperature	-26.1 C (-15.0 F)	24 of 100 (Routine)
Jokkmokk	Sweden	Record high maximum temperature	7.0 C (44.6 F)	24 of 100 (Routine)
Oneonta	United States	Record daily precipitation	55.1 mm (2.2 in)	24 of 100 (Routine)
Crested Butte	United States	Record daily precipitation	35.3 mm (1.4 in)	24 of 100 (Routine)
Augusta	United States	Record low maximum temperature	-10.0 C (14.0 F)	24 of 100 (Routine)
Busby	United States	Record low maximum temperature	-10.6 C (12.9 F)	24 of 100 (Routine)
Goldbutte 7 N	United States	Record low minimum temperature	-30.6 C (-23.1 F)	24 of 100 (Routine)
Haugan 1 W	United States	Record low minimum temperature	-21.7 C (-7.1 F)	24 of 100 (Routine)
Heron 2 NW	United States	Record low minimum temperature	-21.1 C (-6.0 F)	24 of 100 (Routine)
Ovando	United States	Record low maximum temperature	-6.7 C (19.9 F)	24 of 100 (Routine)
Cullowhee	United States	Record daily precipitation	41.9 mm (1.6 in)	24 of 100 (Routine)
Arlington	United States	Record low minimum temperature	-6.7 C (19.9 F)	24 of 100 (Routine)

Counts by Type and Timescale

500 records

Records set or tied on 17 March 1943 by type: Highest daily maximum 29, Lowest daily maximum 174, Highest daily minimum 27, Lowest daily minimum 113, Heaviest daily rainfall 118, Heaviest daily snowfall 20, Deepest snow cover 19.

Records on 17 March 1943 by type
Record type	Records
Highest daily maximum	29
Lowest daily maximum	174
Highest daily minimum	27
Lowest daily minimum	113
Heaviest daily rainfall	118
Heaviest daily snowfall	20
Deepest snow cover	19

Records on 17 March 1943 by timescale: all-time 1, monthly 5, daily 494.

How Much Records Were Beaten By

433 broken records

Margins by which the 433 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 500.0. Ties are not counted.

Top 20 by Significance

17 March 1943

Top 20 records on 17 March 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 March 1943	Epping, US	monthly rain	33.0 mm (1.3 in)	14.2 mm (0.6 in)	18 years	53 of 100 (Notable)
17 March 1943	Montevideo 1SW, US	daily rain	32.3 mm (1.3 in)	27.0 mm (1.1 in)	40 years	50 of 100 (Notable)
17 March 1943	Highland Home, US	daily rain	120.9 mm (4.8 in)	80.5 mm (3.2 in)	24 years	47 of 100 (Notable)
17 March 1943	Columbus Dardc, US	daily rain	103.6 mm (4.1 in)	76.2 mm (3.0 in)	20 years	45 of 100 (Notable)
17 March 1943	Dickinson Exp STN, US	daily snow depth	20.3 cm (8.0 in)	15.2 cm (6.0 in)	38 years	41 of 100 (Notable)
17 March 1943	Franklin 3 NW, US	daily rain	64.0 mm (2.5 in)	42.9 mm (1.7 in)	48 years	39 of 100 (Notable)
17 March 1943	Fortine 1 N, US	daily low min	-28.9 C (-20.0 F)	13.3 C (23.9 F)	36 years	37 of 100 (Notable)
17 March 1943	Livermore, US	daily rain	26.7 mm (1.1 in)	15.3 mm (0.6 in)	36 years	34 of 100 (Routine)
17 March 1943	Sydney (Observatory Hill), AU	daily high max	34.7 C (94.5 F)	3.6 C (6.5 F)	45 years	33 of 100 (Routine)
17 March 1943	Union Springs 9 S, US	monthly rain	180.3 mm (7.1 in)	37.8 mm (1.5 in)	9 years	33 of 100 (Routine)
17 March 1943	Lima Wwtp, US	daily rain	37.6 mm (1.5 in)	23.6 mm (0.9 in)	24 years	33 of 100 (Routine)
17 March 1943	Kaslo, CA	daily low min	-15.6 C (3.9 F)	7.3 C (13.1 F)	25 years	32 of 100 (Routine)
17 March 1943	Salmon Arm, CA	daily low min	-17.8 C (0.0 F)	8.9 C (16.0 F)	29 years	32 of 100 (Routine)
17 March 1943	Britton, US	daily snow depth	45.7 cm (18.0 in)	40.6 cm (16.0 in)	5 years	32 of 100 (Routine)
17 March 1943	Columbia, US	daily rain	74.4 mm (2.9 in)	41.1 mm (1.6 in)	24 years	31 of 100 (Routine)
17 March 1943	Jamestown State Hosp, US	daily snowfall	11.4 cm (4.5 in)	8.4 cm (3.3 in)	20 years	31 of 100 (Routine)
17 March 1943	Georgetown 2 E, US	monthly high min	20.6 C (69.1 F)	1.2 C (2.2 F)	48 years	31 of 100 (Routine)
17 March 1943	Experiment, US	daily rain	56.9 mm (2.2 in)	46.5 mm (1.8 in)	10 years	30 of 100 (Routine)
17 March 1943	Franklinton, US	daily rain	68.3 mm (2.7 in)	44.2 mm (1.7 in)	24 years	30 of 100 (Routine)
17 March 1943	Tarnaby, SE	daily snow depth	185.0 cm (72.8 in)	35.0 cm (13.8 in)	36 years	29 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

1825 to 1943

Records set or tied on this calendar date in each year from 1825 to 1943. 1943 had 500 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 1943-03-17: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 100	422
100 to 200	7
200 to 300	1
300 to 400	1
400 to 500	2