Weather Records on 17 March 1945

1,345 weather records were set or tied worldwide on 17 March 1945. Highest significance: Brockville, CA.

Key Facts for 17 March 1945

On 17 March 1945, 1,345 weather records were set or tied at long-record stations worldwide.
1,143 were record highs and 69 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 83 monthly and 1,262 daily.
Brockville set a daily record high maximum temperature of 20.0 C (68.0 F) on 17 March 1945.
Across 161 earlier years (1825 to 2026) the same calendar date averaged 470 records.

Record Map

1,345 stations

1,345 station records on 17 March 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 March 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brockville	Canada	Record high maximum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Toronto	Canada	Record high maximum temperature	17.8 C (64.0 F)	42 of 100 (Notable)
Goderich	Canada	Record high maximum temperature	20.0 C (68.0 F)	40 of 100 (Notable)
Paratinga	Brazil	Record daily precipitation	60.5 mm (2.4 in)	39 of 100 (Notable)
Kumargram	India	Record daily precipitation	32.0 mm (1.3 in)	38 of 100 (Notable)
Drain	United States	Record daily precipitation	68.1 mm (2.7 in)	36 of 100 (Notable)
Laurens	United States	Record high minimum temperature	24.4 C (75.9 F)	36 of 100 (Notable)
Simcoe	Canada	Record high minimum temperature	6.1 C (43.0 F)	34 of 100 (Routine)
Trenton 2	United States	Record high minimum temperature	10.6 C (51.1 F)	34 of 100 (Routine)
Newark Liberty Intl AP	United States	Record high maximum temperature	26.7 C (80.1 F)	34 of 100 (Routine)
Hamilton	Canada	Record high maximum temperature	20.6 C (69.1 F)	33 of 100 (Routine)
Casa Nova	Brazil	Record daily precipitation	54.5 mm (2.1 in)	32 of 100 (Routine)
Pembroke Eddy Match	Canada	Record high minimum temperature	2.2 C (36.0 F)	32 of 100 (Routine)
Alma	United States	Record high maximum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
Mackinaw City 2	United States	Record high maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Morgantown 1	United States	Record high minimum temperature	15.0 C (59.0 F)	32 of 100 (Routine)
Brantford	Canada	Record high minimum temperature	5.6 C (42.1 F)	31 of 100 (Routine)
Atlantic City Marina	United States	Record high maximum temperature	25.0 C (77.0 F)	31 of 100 (Routine)
Lucknow	Canada	Record high maximum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
Simcoe	Canada	Record high maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Avalon Pleasure Pier	United States	Record daily precipitation	31.5 mm (1.2 in)	30 of 100 (Routine)
Meeker	United States	Record daily snowfall	13.2 cm (5.2 in)	30 of 100 (Routine)
Jacksonville Wb City	United States	Record high maximum temperature	31.1 C (88.0 F)	30 of 100 (Routine)
Botanic Gardens - Pmb	South Africa	Record daily precipitation	73.7 mm (2.9 in)	29 of 100 (Routine)
Scottsburg	United States	Record high minimum temperature	15.0 C (59.0 F)	29 of 100 (Routine)
E Tawas	United States	Record high maximum temperature	23.3 C (73.9 F)	29 of 100 (Routine)
Bridgeton 1 NE	United States	Record high maximum temperature	31.7 C (89.1 F)	29 of 100 (Routine)
Sussex 1 NW	United States	Record high maximum temperature	32.2 C (90.0 F)	29 of 100 (Routine)
Trenton 2	United States	Record high maximum temperature	30.6 C (87.1 F)	29 of 100 (Routine)
Raleigh State UNIV	United States	Record high minimum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
State College	United States	Record high minimum temperature	11.7 C (53.1 F)	29 of 100 (Routine)
Coldwater	Canada	Record high maximum temperature	17.8 C (64.0 F)	28 of 100 (Routine)
Watseka Public Works	United States	Record high minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Russellville	United States	Record daily precipitation	39.1 mm (1.5 in)	28 of 100 (Routine)
Laurel 3 W	United States	Record high minimum temperature	13.3 C (55.9 F)	28 of 100 (Routine)
Frankfort 2NE	United States	Record high maximum temperature	18.3 C (64.9 F)	28 of 100 (Routine)
Charlotteburg Rsvr	United States	Record high maximum temperature	29.4 C (84.9 F)	28 of 100 (Routine)
Morganton	United States	Record high maximum temperature	32.8 C (91.0 F)	28 of 100 (Routine)
Salisbury	United States	Record high minimum temperature	18.9 C (66.0 F)	28 of 100 (Routine)
Wilmington Wb City	United States	Record high maximum temperature	29.4 C (84.9 F)	28 of 100 (Routine)
Georgetown 2 E	United States	Record high maximum temperature	32.2 C (90.0 F)	28 of 100 (Routine)
N Bend SW Oregon Rgnl AP	United States	Record daily precipitation	43.7 mm (1.7 in)	28 of 100 (Routine)
Collingwood	Canada	Record high maximum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Brantford	Canada	Record high maximum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Bizana (Bos)	South Africa	Record daily precipitation	45.5 mm (1.8 in)	27 of 100 (Routine)
Greenville	United States	Record high minimum temperature	15.6 C (60.1 F)	27 of 100 (Routine)
Mascoutah	United States	Record high minimum temperature	16.1 C (61.0 F)	27 of 100 (Routine)
Plymouth Pwr Substn	United States	Record high minimum temperature	13.3 C (55.9 F)	27 of 100 (Routine)
Kalamazoo State Hospital	United States	Record high minimum temperature	10.0 C (50.0 F)	27 of 100 (Routine)
Duck Hill	United States	Record high minimum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Hightstown 2 W	United States	Record high maximum temperature	30.6 C (87.1 F)	27 of 100 (Routine)
Staunton Wtp	United States	Record high maximum temperature	29.4 C (84.9 F)	27 of 100 (Routine)
Stevens Pt	United States	Record high minimum temperature	7.2 C (45.0 F)	27 of 100 (Routine)
White River	Canada	Record high maximum temperature	11.7 C (53.1 F)	26 of 100 (Routine)
Oneonta	United States	Record high maximum temperature	29.4 C (84.9 F)	26 of 100 (Routine)
Pocahontas 1	United States	Record daily precipitation	29.2 mm (1.1 in)	26 of 100 (Routine)
Millsboro	United States	Record high maximum temperature	31.7 C (89.1 F)	26 of 100 (Routine)
Dahlonega 4WSW	United States	Record high maximum temperature	28.3 C (82.9 F)	26 of 100 (Routine)
Champaign 3S	United States	Record high minimum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
Easton	United States	Record high maximum temperature	30.6 C (87.1 F)	26 of 100 (Routine)

Counts by Type and Timescale

1,345 records

Records set or tied on 17 March 1945 by type: Highest daily maximum 554, Lowest daily maximum 58, Highest daily minimum 589, Lowest daily minimum 11, Heaviest daily rainfall 118, Heaviest daily snowfall 14, Deepest snow cover 1.

Records on 17 March 1945 by type
Record type	Records
Highest daily maximum	554
Lowest daily maximum	58
Highest daily minimum	589
Lowest daily minimum	11
Heaviest daily rainfall	118
Heaviest daily snowfall	14
Deepest snow cover	1

Records on 17 March 1945 by timescale: all-time 0, monthly 83, daily 1,262.

How Much Records Were Beaten By

1,129 broken records

Margins by which the 1,129 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

17 March 1945

Top 20 records on 17 March 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 March 1945	Brockville, CA	daily high max	20.0 C (68.0 F)	8.9 C (16.0 F)	66 years	42 of 100 (Notable)
17 March 1945	Toronto, CA	daily high max	17.8 C (64.0 F)	1.1 C (2.0 F)	102 years	42 of 100 (Notable)
17 March 1945	Goderich, CA	daily high max	20.0 C (68.0 F)	5.0 C (9.0 F)	76 years	40 of 100 (Notable)
17 March 1945	Paratinga, BR	daily rain	60.5 mm (2.4 in)	45.3 mm (1.8 in)	20 years	39 of 100 (Notable)
17 March 1945	Kumargram, IN	daily rain	32.0 mm (1.3 in)	32.0 mm (1.3 in)	38 years	38 of 100 (Notable)
17 March 1945	Drain, US	monthly rain	68.1 mm (2.7 in)	10.9 mm (0.4 in)	33 years	36 of 100 (Notable)
17 March 1945	Laurens, US	monthly high min	24.4 C (75.9 F)	6.1 C (11.0 F)	36 years	36 of 100 (Notable)
17 March 1945	Simcoe, CA	daily high min	6.1 C (43.0 F)	1.7 C (3.1 F)	76 years	34 of 100 (Routine)
17 March 1945	Trenton 2, US	daily high min	10.6 C (51.1 F)	1.7 C (3.1 F)	76 years	34 of 100 (Routine)
17 March 1945	Newark Liberty Intl AP, US	daily high max	26.7 C (80.1 F)	6.1 C (11.0 F)	46 years	34 of 100 (Routine)
17 March 1945	Hamilton, CA	daily high max	20.6 C (69.1 F)	1.2 C (2.2 F)	76 years	33 of 100 (Routine)
17 March 1945	Casa Nova, BR	daily rain	54.5 mm (2.1 in)	49.1 mm (1.9 in)	19 years	32 of 100 (Routine)
17 March 1945	Pembroke Eddy Match, CA	daily high min	2.2 C (36.0 F)	1.1 C (2.0 F)	76 years	32 of 100 (Routine)
17 March 1945	Alma, US	daily high max	22.2 C (72.0 F)	7.2 C (13.0 F)	55 years	32 of 100 (Routine)
17 March 1945	Mackinaw City 2, US	daily high max	20.6 C (69.1 F)	10.6 C (19.1 F)	27 years	32 of 100 (Routine)
17 March 1945	Morgantown 1, US	daily high min	15.0 C (59.0 F)	3.9 C (7.0 F)	63 years	32 of 100 (Routine)
17 March 1945	Brantford, CA	daily high min	5.6 C (42.1 F)	2.8 C (5.0 F)	66 years	31 of 100 (Routine)
17 March 1945	Atlantic City Marina, US	daily high max	25.0 C (77.0 F)	5.0 C (9.0 F)	46 years	31 of 100 (Routine)
17 March 1945	Lucknow, CA	daily high max	21.1 C (70.0 F)	6.7 C (12.1 F)	46 years	30 of 100 (Routine)
17 March 1945	Simcoe, CA	daily high max	19.4 C (66.9 F)	0.5 C (0.9 F)	73 years	30 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 1945

Records set or tied on this calendar date in each year from 1825 to 1945. 1945 had 1,345 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 1945-03-17: 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 25	1,110
25 to 50	13
50 to 75	3
75 to 100	0
100 to 125	2
125 to 150	0
150 to 175	0
175 to 200	1