Weather Records on 17 October 1946

437 weather records were set or tied worldwide on 17 October 1946. Highest significance: Hannibal, US.

Key Facts for 17 October 1946

On 17 October 1946, 437 weather records were set or tied at long-record stations worldwide.
36 were record highs and 195 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 428 daily.
Hannibal set a monthly record daily precipitation of 101.6 mm (4.0 in) on 17 October 1946.
Across 162 earlier years (1793 to 2025) the same calendar date averaged 439 records.

Record Map

437 stations

437 station records on 17 October 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 October 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hannibal	United States	Record daily precipitation	101.6 mm (4.0 in)	61 of 100 (Major)
Neosho Rapids	United States	Record daily precipitation	73.7 mm (2.9 in)	50 of 100 (Notable)
Surada	India	Record daily precipitation	157.5 mm (6.2 in)	49 of 100 (Notable)
Marshall	United States	Record daily precipitation	74.4 mm (2.9 in)	49 of 100 (Notable)
Steffenville	United States	Record daily precipitation	59.9 mm (2.4 in)	47 of 100 (Notable)
Lebo	United States	Record daily precipitation	78.7 mm (3.1 in)	46 of 100 (Notable)
Palmyra	United States	Record daily precipitation	102.6 mm (4.0 in)	46 of 100 (Notable)
Tiffin	United States	Record daily precipitation	45.5 mm (1.8 in)	46 of 100 (Notable)
Ottawa	United States	Record daily precipitation	74.7 mm (2.9 in)	45 of 100 (Notable)
Chugwater	United States	Record daily snowfall	12.7 cm (5.0 in)	45 of 100 (Notable)
Ft Wayne Maumee	United States	Record daily precipitation	43.9 mm (1.7 in)	44 of 100 (Notable)
Golden	United States	Record daily precipitation	82.6 mm (3.3 in)	42 of 100 (Notable)
Quincy	United States	Record daily precipitation	88.1 mm (3.5 in)	42 of 100 (Notable)
Chippewa Lake	United States	Record daily precipitation	48.3 mm (1.9 in)	40 of 100 (Notable)
Tuscola	United States	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Paola	United States	Record daily precipitation	64.0 mm (2.5 in)	38 of 100 (Notable)
Columbia Wb City	United States	Record daily precipitation	69.1 mm (2.7 in)	38 of 100 (Notable)
Leavenworth	United States	Record daily precipitation	42.7 mm (1.7 in)	36 of 100 (Notable)
Greenville Wtp	United States	Record daily precipitation	33.3 mm (1.3 in)	36 of 100 (Notable)
Havana	United States	Record daily precipitation	53.3 mm (2.1 in)	35 of 100 (Notable)
Sydney (Observatory Hill)	Australia	Record low minimum temperature	8.3 C (46.9 F)	34 of 100 (Routine)
Esperance Post Office	Australia	Record high minimum temperature	19.8 C (67.6 F)	32 of 100 (Routine)
Burketown Post Office	Australia	Record low minimum temperature	11.2 C (52.2 F)	32 of 100 (Routine)
Bellefontaine	United States	Record daily precipitation	48.8 mm (1.9 in)	32 of 100 (Routine)
Greenville	United States	Record daily precipitation	56.9 mm (2.2 in)	31 of 100 (Routine)
Rockville	United States	Record daily precipitation	47.5 mm (1.9 in)	31 of 100 (Routine)
Shelbina	United States	Record daily precipitation	80.3 mm (3.2 in)	31 of 100 (Routine)
Government Creek	United States	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Rushville	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Streator 2SE	United States	Record daily precipitation	31.5 mm (1.2 in)	30 of 100 (Routine)
Kirksville	United States	Record daily precipitation	53.8 mm (2.1 in)	30 of 100 (Routine)
Bathurst Gaol	Australia	Record low minimum temperature	-1.1 C (30.0 F)	29 of 100 (Routine)
Minonk	United States	Record daily precipitation	50.3 mm (2.0 in)	29 of 100 (Routine)
White Hall 1 E	United States	Record daily precipitation	49.3 mm (1.9 in)	29 of 100 (Routine)
Horton	United States	Record daily precipitation	33.0 mm (1.3 in)	29 of 100 (Routine)
Fayette	United States	Record daily precipitation	63.5 mm (2.5 in)	29 of 100 (Routine)
Albion	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
Cheyenne	United States	Record daily snowfall	8.6 cm (3.4 in)	29 of 100 (Routine)
Wallaceburg	Canada	Record daily precipitation	30.7 mm (1.2 in)	28 of 100 (Routine)
Tot-Ma	Russia	Record low minimum temperature	-17.5 C (0.5 F)	28 of 100 (Routine)
Atchison	United States	Record daily precipitation	43.9 mm (1.7 in)	28 of 100 (Routine)
Delaware	United States	Record daily precipitation	57.2 mm (2.3 in)	28 of 100 (Routine)
Springfield Abraham Lincoln Ca	United States	Record daily precipitation	53.3 mm (2.1 in)	28 of 100 (Routine)
Porthill	United States	Record low minimum temperature	-7.8 C (18.0 F)	27 of 100 (Routine)
Brisbane Regional Office	Australia	Record low minimum temperature	9.3 C (48.7 F)	26 of 100 (Routine)
Holton	United States	Record daily precipitation	39.6 mm (1.6 in)	26 of 100 (Routine)
St Joseph Wbo	United States	Record daily precipitation	38.9 mm (1.5 in)	26 of 100 (Routine)
Keremeos	Canada	Record low minimum temperature	-2.8 C (27.0 F)	25 of 100 (Routine)
Mayaguez City	Puerto Rico [United States]	Record low maximum temperature	29.4 C (84.9 F)	25 of 100 (Routine)
Shoshone	United States	Record daily precipitation	27.4 mm (1.1 in)	25 of 100 (Routine)
Danville	United States	Record daily precipitation	33.0 mm (1.3 in)	25 of 100 (Routine)
Griggsville	United States	Record daily precipitation	47.2 mm (1.9 in)	25 of 100 (Routine)
Indiana	United States	Record high minimum temperature	18.3 C (64.9 F)	25 of 100 (Routine)
Jamui	India	Record daily precipitation	48.8 mm (1.9 in)	24 of 100 (Routine)
Yuma	United States	Record daily snowfall	5.1 cm (2.0 in)	24 of 100 (Routine)
Columbus 3 NE	United States	Record low maximum temperature	5.6 C (42.1 F)	24 of 100 (Routine)
Oshkosh	United States	Record daily snowfall	6.4 cm (2.5 in)	24 of 100 (Routine)
Ravenna	United States	Record low maximum temperature	3.3 C (37.9 F)	24 of 100 (Routine)
St Catharines	Canada	Record daily precipitation	25.4 mm (1.0 in)	23 of 100 (Routine)
Potkabari	India	Record daily precipitation	44.5 mm (1.8 in)	23 of 100 (Routine)

Counts by Type and Timescale

437 records

Records set or tied on 17 October 1946 by type: Highest daily maximum 4, Lowest daily maximum 106, Highest daily minimum 32, Lowest daily minimum 89, Heaviest daily rainfall 183, Heaviest daily snowfall 22, Deepest snow cover 1.

Records on 17 October 1946 by type
Record type	Records
Highest daily maximum	4
Lowest daily maximum	106
Highest daily minimum	32
Lowest daily minimum	89
Heaviest daily rainfall	183
Heaviest daily snowfall	22
Deepest snow cover	1

Records on 17 October 1946 by timescale: all-time 0, monthly 9, daily 428.

How Much Records Were Beaten By

380 broken records

Margins by which the 380 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

17 October 1946

Top 20 records on 17 October 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 October 1946	Hannibal, US	monthly rain	101.6 mm (4.0 in)	37.3 mm (1.5 in)	36 years	61 of 100 (Major)
17 October 1946	Neosho Rapids, US	daily rain	73.7 mm (2.9 in)	59.0 mm (2.3 in)	20 years	50 of 100 (Notable)
17 October 1946	Surada, IN	daily rain	157.5 mm (6.2 in)	110.3 mm (4.3 in)	16 years	49 of 100 (Notable)
17 October 1946	Marshall, US	daily rain	74.4 mm (2.9 in)	42.4 mm (1.7 in)	47 years	49 of 100 (Notable)
17 October 1946	Steffenville, US	daily rain	59.9 mm (2.4 in)	32.2 mm (1.3 in)	47 years	47 of 100 (Notable)
17 October 1946	Lebo, US	daily rain	78.7 mm (3.1 in)	41.1 mm (1.6 in)	47 years	46 of 100 (Notable)
17 October 1946	Palmyra, US	monthly rain	102.6 mm (4.0 in)	28.2 mm (1.1 in)	10 years	46 of 100 (Notable)
17 October 1946	Tiffin, US	daily rain	45.5 mm (1.8 in)	31.5 mm (1.2 in)	35 years	46 of 100 (Notable)
17 October 1946	Ottawa, US	daily rain	74.7 mm (2.9 in)	35.3 mm (1.4 in)	47 years	45 of 100 (Notable)
17 October 1946	Chugwater, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	43 years	45 of 100 (Notable)
17 October 1946	Ft Wayne Maumee, US	daily rain	43.9 mm (1.7 in)	33.7 mm (1.3 in)	20 years	44 of 100 (Notable)
17 October 1946	Golden, US	monthly rain	82.6 mm (3.3 in)	21.6 mm (0.9 in)	27 years	42 of 100 (Notable)
17 October 1946	Quincy, US	monthly rain	88.1 mm (3.5 in)	25.9 mm (1.0 in)	14 years	42 of 100 (Notable)
17 October 1946	Chippewa Lake, US	daily rain	48.3 mm (1.9 in)	20.6 mm (0.8 in)	35 years	40 of 100 (Notable)
17 October 1946	Tuscola, US	daily rain	50.8 mm (2.0 in)	30.5 mm (1.2 in)	32 years	39 of 100 (Notable)
17 October 1946	Paola, US	daily rain	64.0 mm (2.5 in)	46.5 mm (1.8 in)	12 years	38 of 100 (Notable)
17 October 1946	Columbia Wb City, US	daily rain	69.1 mm (2.7 in)	25.4 mm (1.0 in)	40 years	38 of 100 (Notable)
17 October 1946	Leavenworth, US	daily rain	42.7 mm (1.7 in)	30.3 mm (1.2 in)	20 years	36 of 100 (Notable)
17 October 1946	Greenville Wtp, US	daily rain	33.3 mm (1.3 in)	18.1 mm (0.7 in)	46 years	36 of 100 (Notable)
17 October 1946	Havana, US	daily rain	53.3 mm (2.1 in)	23.8 mm (0.9 in)	23 years	35 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

1793 to 1946

Records set or tied on this calendar date in each year from 1793 to 1946. 1946 had 437 records.

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

Records on 10-17 in each year
Year	Records
1793	1
1796	2
1808	2
1810	1
1811	1
1817	1
1820	1
1830	1
1836	1
1844	1
1845	1
1868	1
1869	2
1870	1
1872	1
1874	1
1875	1
1876	3
1877	1
1878	1
1879	7
1881	1
1882	1
1883	1
1884	2
1885	2
1886	1
1889	1
1890	3
1891	2
1892	6
1893	5
1894	2
1895	1
1897	3
1898	6
1899	3
1900	3
1901	3
1902	4
1903	9
1904	17
1905	12
1906	3
1907	16
1908	46
1909	18
1910	13
1911	24
1912	12
1913	26
1914	72
1915	7
1916	81
1917	29
1918	20
1919	34
1920	82
1921	64
1922	60
1923	149
1924	81
1925	324
1926	153
1927	163
1928	530
1929	119
1930	441
1931	431
1932	345
1933	190
1934	262
1935	337
1936	338
1937	865
1938	710
1939	424
1940	580
1941	194
1942	349
1943	1,173
1944	415
1945	289
1946	437
1947	744
1948	724
1949	442
1950	809
1951	274
1952	474
1953	463
1954	579
1955	562
1956	353
1957	245
1958	415
1959	403
1960	432
1961	525
1962	350
1963	513
1964	492
1965	920
1966	551
1967	576
1968	929
1969	714
1970	815
1971	1,053
1972	866
1973	542
1974	1,055
1975	605
1976	1,381
1977	1,060
1978	583
1979	468
1980	1,366
1981	555
1982	575
1983	526
1984	1,551
1985	585
1986	354
1987	828
1988	827
1989	1,163
1990	1,109
1991	1,352
1992	1,384
1993	1,001
1994	1,306
1995	1,076
1996	987
1997	1,114
1998	1,455
1999	815
2000	461
2001	878
2002	992
2003	764
2004	935
2005	643
2006	1,506
2007	690
2008	467
2009	1,606
2010	625
2011	734
2012	550
2013	516
2014	530
2015	843
2016	1,559
2017	743
2018	1,163
2019	504
2020	889
2021	294
2022	964
2023	544
2024	994
2025	363

Download the Data

Data for records on 1946-10-17: 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 20	337
20 to 40	30
40 to 60	9
60 to 80	2
80 to 100	0
100 to 120	1
120 to 140	1