Weather Records on 17 October 1930

441 weather records were set or tied worldwide on 17 October 1930. Highest significance: Battleford, CA.

Key Facts for 17 October 1930

On 17 October 1930, 441 weather records were set or tied at long-record stations worldwide.
68 were record highs and 321 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 7 monthly and 434 daily.
Battleford set a daily record snowfall of 12.7 cm (5.0 in) on 17 October 1930.
Across 162 earlier years (1793 to 2025) the same calendar date averaged 439 records.

Record Map

441 stations

441 station records on 17 October 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 October 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Battleford	Canada	Record daily snowfall	12.7 cm (5.0 in)	53 of 100 (Notable)
Anacortes	United States	Record daily precipitation	27.4 mm (1.1 in)	38 of 100 (Notable)
Edmonton	Canada	Record low maximum temperature	-10.6 C (12.9 F)	30 of 100 (Routine)
Calgary Int'l A	Canada	Record low maximum temperature	-7.2 C (19.0 F)	30 of 100 (Routine)
Victoria Gonzales Hts	Canada	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Kelowna	Canada	Record low maximum temperature	2.2 C (36.0 F)	26 of 100 (Routine)
Husum	Germany	Record high maximum temperature	20.6 C (69.1 F)	26 of 100 (Routine)
Bella Coola	Canada	Record daily snowfall	6.4 cm (2.5 in)	25 of 100 (Routine)
Fort Macleod	Canada	Record low maximum temperature	-6.7 C (19.9 F)	25 of 100 (Routine)
London South	Canada	Record daily precipitation	38.9 mm (1.5 in)	25 of 100 (Routine)
Olga 2 SE	United States	Record daily precipitation	39.4 mm (1.6 in)	25 of 100 (Routine)
Beaver Lake	Canada	Record daily precipitation	48.8 mm (1.9 in)	24 of 100 (Routine)
Barkerville	Canada	Record low maximum temperature	-3.9 C (25.0 F)	24 of 100 (Routine)
Sioux Ctr 2 SE	United States	Record low maximum temperature	-1.7 C (28.9 F)	24 of 100 (Routine)
Battleford	Canada	Record low maximum temperature	-7.2 C (19.0 F)	23 of 100 (Routine)
Northwood	United States	Record low maximum temperature	0.6 C (33.1 F)	23 of 100 (Routine)
St Peter	United States	Record low maximum temperature	0.0 C (32.0 F)	23 of 100 (Routine)
Lewistown AP	United States	Record low maximum temperature	-8.3 C (17.1 F)	23 of 100 (Routine)
Bella Coola	Canada	Record low maximum temperature	-1.1 C (30.0 F)	22 of 100 (Routine)
Fort St James	Canada	Record daily snowfall	7.4 cm (2.9 in)	22 of 100 (Routine)
Regina Int'l A	Canada	Record daily snowfall	7.6 cm (3.0 in)	22 of 100 (Routine)
Sedro-Woolley	United States	Record daily precipitation	40.6 mm (1.6 in)	22 of 100 (Routine)
Madison Wb City	United States	Record low minimum temperature	-2.8 C (27.0 F)	22 of 100 (Routine)
Milwaukee Wb City	United States	Record low minimum temperature	-1.1 C (30.0 F)	22 of 100 (Routine)
Uccle	Belgium	Record high minimum temperature	13.2 C (55.8 F)	21 of 100 (Routine)
Moose Jaw Chab	Canada	Record low maximum temperature	-7.8 C (18.0 F)	21 of 100 (Routine)
Ft Dodge 5NNW	United States	Record low maximum temperature	2.2 C (36.0 F)	21 of 100 (Routine)
Farmington 3NW	United States	Record low maximum temperature	-1.1 C (30.0 F)	21 of 100 (Routine)
Chinook	United States	Record low maximum temperature	-5.0 C (23.0 F)	21 of 100 (Routine)
Chinook	United States	Record low minimum temperature	-12.8 C (9.0 F)	21 of 100 (Routine)
Great Falls 16St	United States	Record low maximum temperature	-6.1 C (21.0 F)	21 of 100 (Routine)
Colfax	United States	Record low maximum temperature	6.1 C (43.0 F)	21 of 100 (Routine)
St Cloud State Clg	United States	Record low maximum temperature	-1.7 C (28.9 F)	21 of 100 (Routine)
Port Townsend	United States	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Mudgee (George Street)	Australia	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Kargopol	Russia	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Chilliwack	Canada	Record daily snowfall	1.3 cm (0.5 in)	20 of 100 (Routine)
Kamloops	Canada	Record daily snowfall	1.3 cm (0.5 in)	20 of 100 (Routine)
Colville	United States	Record snow depth	7.6 cm (3.0 in)	20 of 100 (Routine)
Banff	Canada	Record low minimum temperature	-16.7 C (1.9 F)	20 of 100 (Routine)
Chaplin	Canada	Record low maximum temperature	-12.2 C (10.0 F)	20 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record high maximum temperature	21.3 C (70.3 F)	20 of 100 (Routine)
Barkestad	Norway	Record daily precipitation	18.9 mm (0.7 in)	20 of 100 (Routine)
Orebro	Sweden	Record high maximum temperature	15.0 C (59.0 F)	20 of 100 (Routine)
Albert Lea 3SE	United States	Record low maximum temperature	0.0 C (32.0 F)	20 of 100 (Routine)
Maple Plain	United States	Record low maximum temperature	0.0 C (32.0 F)	20 of 100 (Routine)
Glendive	United States	Record low maximum temperature	-2.8 C (27.0 F)	20 of 100 (Routine)
Alexandria	United States	Record low maximum temperature	2.2 C (36.0 F)	20 of 100 (Routine)
Dubuque River	United States	Record low minimum temperature	-1.7 C (28.9 F)	20 of 100 (Routine)
Havre Wb City	United States	Record low maximum temperature	-6.1 C (21.0 F)	20 of 100 (Routine)
Masset Airport	Canada	Record low maximum temperature	4.4 C (39.9 F)	19 of 100 (Routine)
Steveston	Canada	Record daily precipitation	29.2 mm (1.1 in)	19 of 100 (Routine)
Medicine Hat A	Canada	Record low minimum temperature	-11.7 C (10.9 F)	19 of 100 (Routine)
Pincher Creek Town	Canada	Record low maximum temperature	-6.7 C (19.9 F)	19 of 100 (Routine)
Regina Int'l A	Canada	Record low maximum temperature	-7.2 C (19.0 F)	19 of 100 (Routine)
Ottawa	Canada	Record daily precipitation	28.4 mm (1.1 in)	19 of 100 (Routine)
Wiarton	Canada	Record daily snowfall	5.1 cm (2.0 in)	19 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record high maximum temperature	21.4 C (70.5 F)	19 of 100 (Routine)
Brocken	Germany	Record high minimum temperature	10.1 C (50.2 F)	19 of 100 (Routine)
Shenkursk	Russia	Record daily precipitation	8.2 mm (0.32 in)	19 of 100 (Routine)

Counts by Type and Timescale

441 records

Records set or tied on 17 October 1930 by type: Highest daily maximum 47, Lowest daily maximum 221, Highest daily minimum 21, Lowest daily minimum 100, Heaviest daily rainfall 34, Heaviest daily snowfall 16, Deepest snow cover 2.

Records on 17 October 1930 by type
Record type	Records
Highest daily maximum	47
Lowest daily maximum	221
Highest daily minimum	21
Lowest daily minimum	100
Heaviest daily rainfall	34
Heaviest daily snowfall	16
Deepest snow cover	2

Records on 17 October 1930 by timescale: all-time 0, monthly 7, daily 434.

How Much Records Were Beaten By

360 broken records

Margins by which the 360 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.0. Ties are not counted.

Top 20 by Significance

17 October 1930

Top 20 records on 17 October 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 October 1930	Battleford, CA	daily snowfall	12.7 cm (5.0 in)	10.2 cm (4.0 in)	30 years	53 of 100 (Notable)
17 October 1930	Anacortes, US	daily rain	27.4 mm (1.1 in)	18.0 mm (0.7 in)	20 years	38 of 100 (Notable)
17 October 1930	Edmonton, CA	daily low max	-10.6 C (12.9 F)	7.8 C (14.0 F)	48 years	30 of 100 (Routine)
17 October 1930	Calgary Int'l A, CA	daily low max	-7.2 C (19.0 F)	8.3 C (14.9 F)	43 years	30 of 100 (Routine)
17 October 1930	Victoria Gonzales Hts, CA	monthly rain	50.8 mm (2.0 in)	4.3 mm (0.17 in)	23 years	27 of 100 (Routine)
17 October 1930	Kelowna, CA	daily low max	2.2 C (36.0 F)	6.7 C (12.1 F)	16 years	26 of 100 (Routine)
17 October 1930	Husum, DE	daily high max	20.6 C (69.1 F)	4.4 C (7.9 F)	32 years	26 of 100 (Routine)
17 October 1930	Bella Coola, CA	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	34 years	25 of 100 (Routine)
17 October 1930	Fort Macleod, CA	daily low max	-6.7 C (19.9 F)	9.5 C (17.1 F)	20 years	25 of 100 (Routine)
17 October 1930	London South, CA	daily rain	38.9 mm (1.5 in)	13.5 mm (0.5 in)	19 years	25 of 100 (Routine)
17 October 1930	Olga 2 SE, US	monthly rain	39.4 mm (1.6 in)	1.6 mm (0.06 in)	32 years	25 of 100 (Routine)
17 October 1930	Beaver Lake, CA	monthly rain	48.8 mm (1.9 in)	3.1 mm (0.12 in)	23 years	24 of 100 (Routine)
17 October 1930	Barkerville, CA	daily low max	-3.9 C (25.0 F)	3.9 C (7.0 F)	41 years	24 of 100 (Routine)
17 October 1930	Sioux Ctr 2 SE, US	daily low max	-1.7 C (28.9 F)	10.0 C (18.0 F)	24 years	24 of 100 (Routine)
17 October 1930	Battleford, CA	daily low max	-7.2 C (19.0 F)	6.1 C (11.0 F)	30 years	23 of 100 (Routine)
17 October 1930	Northwood, US	daily low max	0.6 C (33.1 F)	7.7 C (13.9 F)	31 years	23 of 100 (Routine)
17 October 1930	St Peter, US	daily low max	0.0 C (32.0 F)	6.7 C (12.1 F)	33 years	23 of 100 (Routine)
17 October 1930	Lewistown AP, US	daily low max	-8.3 C (17.1 F)	10.0 C (18.0 F)	24 years	23 of 100 (Routine)
17 October 1930	Bella Coola, CA	daily low max	-1.1 C (30.0 F)	6.1 C (11.0 F)	9 years	22 of 100 (Routine)
17 October 1930	Fort St James, CA	daily snowfall	7.4 cm (2.9 in)	4.9 cm (1.9 in)	30 years	22 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

1793 to 1930

Records set or tied on this calendar date in each year from 1793 to 1930. 1930 had 441 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 1930-10-17: 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	352
20 to 40	3
40 to 60	3
60 to 80	1
80 to 100	0
100 to 120	1