Weather Records on 17 October 1923

149 weather records were set or tied worldwide on 17 October 1923. Highest significance: Helena, US.

Key Facts for 17 October 1923

On 17 October 1923, 149 weather records were set or tied at long-record stations worldwide.
91 were record highs and 3 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 148 daily.
Helena set a monthly record daily precipitation of 113.8 mm (4.5 in) on 17 October 1923.
Across 162 earlier years (1793 to 2025) the same calendar date averaged 441 records.

Record Map

149 stations

149 station records on 17 October 1923 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 October 1923: highest significance records shown on the map
Station	Country	Type	Value	Significance
Helena	United States	Record daily precipitation	113.8 mm (4.5 in)	41 of 100 (Notable)
Brinkley	United States	Record daily precipitation	63.5 mm (2.5 in)	29 of 100 (Routine)
Arkansas City	United States	Record daily precipitation	45.7 mm (1.8 in)	27 of 100 (Routine)
Southport Ridgeway Ave	Australia	Record daily precipitation	37.1 mm (1.5 in)	22 of 100 (Routine)
Newport	United States	Record daily precipitation	53.3 mm (2.1 in)	22 of 100 (Routine)
Bloomington Normal	United States	Record daily precipitation	32.3 mm (1.3 in)	22 of 100 (Routine)
Yazoo City	United States	Record daily precipitation	38.9 mm (1.5 in)	21 of 100 (Routine)
Feodosiia	Ukraine	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Tot-Ma	Russia	Record daily precipitation	18.2 mm (0.7 in)	20 of 100 (Routine)
Wandearah North	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Port Pirie (Valencia)	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Cape York Post Office	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Dromana	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Portarlington	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Lake	United States	Record daily precipitation	31.8 mm (1.3 in)	20 of 100 (Routine)
Port Germein	Australia	Record daily precipitation	15.5 mm (0.6 in)	19 of 100 (Routine)
Port Germein (Telowie)	Australia	Record daily precipitation	14.0 mm (0.6 in)	19 of 100 (Routine)
Koolunga	Australia	Record daily precipitation	14.0 mm (0.6 in)	19 of 100 (Routine)
Yacka	Australia	Record daily precipitation	16.0 mm (0.6 in)	17 of 100 (Routine)
Syktyvkar	Russia	Record high minimum temperature	9.8 C (49.6 F)	17 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record high minimum temperature	20.0 C (68.0 F)	16 of 100 (Routine)
Happy Valley Reservoir	Australia	Record daily precipitation	12.2 mm (0.5 in)	16 of 100 (Routine)
Farmland 5 NNW	United States	Record high minimum temperature	18.9 C (66.0 F)	16 of 100 (Routine)
Fort National	Algeria	Record high maximum temperature	30.0 C (86.0 F)	15 of 100 (Routine)
Crystal Brook	Australia	Record daily precipitation	16.3 mm (0.6 in)	15 of 100 (Routine)
Port Broughton	Australia	Record daily precipitation	8.9 mm (0.35 in)	15 of 100 (Routine)
Mahackala	Russia	Record high minimum temperature	16.9 C (62.4 F)	15 of 100 (Routine)
Tunis	Tunisia	Record high minimum temperature	22.0 C (71.6 F)	15 of 100 (Routine)
Cambridge City 3 N	United States	Record high minimum temperature	15.6 C (60.1 F)	15 of 100 (Routine)
Tempe Downs	Australia	Record daily precipitation	0.8 mm (0.03 in)	14 of 100 (Routine)
Willunga	Australia	Record daily precipitation	6.1 mm (0.24 in)	14 of 100 (Routine)
Ekaterinburg	Russia	Record high minimum temperature	7.0 C (44.6 F)	14 of 100 (Routine)
Highland Home	United States	Record daily precipitation	30.5 mm (1.2 in)	14 of 100 (Routine)
Pine Bluff	United States	Record daily precipitation	29.2 mm (1.1 in)	14 of 100 (Routine)
Griggsville	United States	Record daily precipitation	30.5 mm (1.2 in)	14 of 100 (Routine)
Mt Sterling	United States	Record high minimum temperature	16.7 C (62.1 F)	14 of 100 (Routine)
Shelbyville 1 E	United States	Record high minimum temperature	17.8 C (64.0 F)	14 of 100 (Routine)
Canton 4N	United States	Record daily precipitation	29.7 mm (1.2 in)	14 of 100 (Routine)
Grantsburg	United States	Record high minimum temperature	15.6 C (60.1 F)	14 of 100 (Routine)
Hermannsburg	Australia	Record daily precipitation	2.0 mm (0.08 in)	13 of 100 (Routine)
Adelaide (Morphett Vale)	Australia	Record daily precipitation	8.1 mm (0.32 in)	13 of 100 (Routine)
Jakutsk	Russia	Record low minimum temperature	-29.2 C (-20.6 F)	13 of 100 (Routine)
Jeffersonville	United States	Record high minimum temperature	17.8 C (64.0 F)	13 of 100 (Routine)
Louisville	United States	Record daily precipitation	24.1 mm (0.9 in)	13 of 100 (Routine)
Brindley Park 2	Australia	Record daily precipitation	10.7 mm (0.4 in)	12 of 100 (Routine)
Port Arthur	Canada	Record high minimum temperature	11.1 C (52.0 F)	12 of 100 (Routine)
Lucknow	Canada	Record high minimum temperature	12.8 C (55.0 F)	12 of 100 (Routine)
Jackson	United States	Record daily precipitation	40.6 mm (1.6 in)	12 of 100 (Routine)
Dayton Mcd	United States	Record high minimum temperature	16.1 C (61.0 F)	12 of 100 (Routine)
Manitowoc	United States	Record high minimum temperature	12.8 C (55.0 F)	12 of 100 (Routine)
Snowtown	Australia	Record daily precipitation	5.8 mm (0.23 in)	11 of 100 (Routine)
Old Noarlunga Post Office	Australia	Record daily precipitation	7.4 mm (0.29 in)	11 of 100 (Routine)
Charleville Post Office	Australia	Record high minimum temperature	20.6 C (69.1 F)	11 of 100 (Routine)
Troicko-Pecherskoe	Russia	Record high minimum temperature	6.7 C (44.1 F)	11 of 100 (Routine)
Perm	Russia	Record high minimum temperature	8.8 C (47.8 F)	11 of 100 (Routine)
Lugansk	Ukraine	Record daily precipitation	14.7 mm (0.6 in)	11 of 100 (Routine)
Butlerville 2 WNW	United States	Record high minimum temperature	16.7 C (62.1 F)	11 of 100 (Routine)
Connersville	United States	Record daily precipitation	23.4 mm (0.9 in)	11 of 100 (Routine)
Iowa City	United States	Record high minimum temperature	15.0 C (59.0 F)	11 of 100 (Routine)
Earlington	United States	Record high minimum temperature	17.2 C (63.0 F)	11 of 100 (Routine)

Counts by Type and Timescale

149 records

Records set or tied on 17 October 1923 by type: Highest daily maximum 7, Highest daily minimum 84, Lowest daily minimum 3, Heaviest daily rainfall 55.

Records on 17 October 1923 by type
Record type	Records
Highest daily maximum	7
Lowest daily maximum	0
Highest daily minimum	84
Lowest daily minimum	3
Heaviest daily rainfall	55
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 October 1923 by timescale: all-time 0, monthly 1, daily 148.

How Much Records Were Beaten By

121 broken records

Margins by which the 121 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 39.4. Ties are not counted.

Top 20 by Significance

17 October 1923

Top 20 records on 17 October 1923 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 October 1923	Helena, US	monthly rain	113.8 mm (4.5 in)	35.6 mm (1.4 in)	13 years	41 of 100 (Notable)
17 October 1923	Brinkley, US	daily rain	63.5 mm (2.5 in)	39.4 mm (1.6 in)	13 years	29 of 100 (Routine)
17 October 1923	Arkansas City, US	daily rain	45.7 mm (1.8 in)	30.2 mm (1.2 in)	6 years	27 of 100 (Routine)
17 October 1923	Southport Ridgeway Ave, AU	daily rain	37.1 mm (1.5 in)	21.9 mm (0.9 in)	8 years	22 of 100 (Routine)
17 October 1923	Newport, US	daily rain	53.3 mm (2.1 in)	21.5 mm (0.8 in)	23 years	22 of 100 (Routine)
17 October 1923	Bloomington Normal, US	daily rain	32.3 mm (1.3 in)	12.7 mm (0.5 in)	13 years	22 of 100 (Routine)
17 October 1923	Yazoo City, US	daily rain	38.9 mm (1.5 in)	21.1 mm (0.8 in)	24 years	21 of 100 (Routine)
17 October 1923	Feodosiia, UA	daily rain	14.7 mm (0.6 in)	11.6 mm (0.5 in)	23 years	20 of 100 (Routine)
17 October 1923	Tot-Ma, RU	daily rain	18.2 mm (0.7 in)	4.2 mm (0.17 in)	27 years	20 of 100 (Routine)
17 October 1923	Wandearah North, AU	daily rain	15.2 mm (0.6 in)	9.6 mm (0.38 in)	17 years	20 of 100 (Routine)
17 October 1923	Port Pirie (Valencia), AU	daily rain	12.7 mm (0.5 in)	8.4 mm (0.33 in)	17 years	20 of 100 (Routine)
17 October 1923	Cape York Post Office, AU	daily rain	11.4 mm (0.4 in)	7.6 mm (0.30 in)	27 years	20 of 100 (Routine)
17 October 1923	Dromana, AU	daily rain	17.3 mm (0.7 in)	4.3 mm (0.17 in)	30 years	20 of 100 (Routine)
17 October 1923	Portarlington, AU	daily rain	17.8 mm (0.7 in)	4.1 mm (0.16 in)	30 years	20 of 100 (Routine)
17 October 1923	Lake, US	daily rain	31.8 mm (1.3 in)	16.6 mm (0.7 in)	24 years	20 of 100 (Routine)
17 October 1923	Port Germein, AU	daily rain	15.5 mm (0.6 in)	7.1 mm (0.28 in)	17 years	19 of 100 (Routine)
17 October 1923	Port Germein (Telowie), AU	daily rain	14.0 mm (0.6 in)	4.9 mm (0.19 in)	28 years	19 of 100 (Routine)
17 October 1923	Koolunga, AU	daily rain	14.0 mm (0.6 in)	4.3 mm (0.17 in)	28 years	19 of 100 (Routine)
17 October 1923	Yacka, AU	daily rain	16.0 mm (0.6 in)	6.1 mm (0.24 in)	14 years	17 of 100 (Routine)
17 October 1923	Syktyvkar, RU	daily high min	9.8 C (49.6 F)	5.8 C (10.4 F)	16 years	17 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 1923

Records set or tied on this calendar date in each year from 1793 to 1923. 1923 had 149 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 1923-10-17: 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 5	98
5 to 10	14
10 to 15	2
15 to 20	1
20 to 25	3
25 to 30	0
30 to 35	1
35 to 40	2