Weather Records on 23 October 1917

62 weather records were set or tied worldwide on 23 October 1917. Highest significance: Casino Airport, AU.

Key Facts for 23 October 1917

On 23 October 1917, 62 weather records were set or tied at long-record stations worldwide.
4 were record highs and 25 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 61 daily.
Casino Airport set a daily record precipitation of 59.2 mm (2.3 in) on 23 October 1917.
Across 160 earlier years (1795 to 2025) the same calendar date averaged 465 records.

Record Map

62 stations

62 station records on 23 October 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 October 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Casino Airport	Australia	Record daily precipitation	59.2 mm (2.3 in)	45 of 100 (Notable)
Varberg	Sweden	Record daily precipitation	25.5 mm (1.0 in)	39 of 100 (Notable)
Palermo	Italy	Record daily precipitation	29.8 mm (1.2 in)	31 of 100 (Routine)
Boras	Sweden	Record daily precipitation	29.5 mm (1.2 in)	30 of 100 (Routine)
Minnedosa	Canada	Record low minimum temperature	-22.2 C (-8.0 F)	25 of 100 (Routine)
Penshurst (Gresford)	Australia	Record daily precipitation	38.4 mm (1.5 in)	22 of 100 (Routine)
Lucknow	Canada	Record daily snowfall	5.6 cm (2.2 in)	21 of 100 (Routine)
Halmstad	Sweden	Record daily precipitation	23.5 mm (0.9 in)	20 of 100 (Routine)
Koebenhavn - Meteorologisk Ins	Denmark	Record daily precipitation	19.5 mm (0.8 in)	20 of 100 (Routine)
Koebenhavn: Landbohojskolen-1	Denmark	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Nidingen A	Sweden	Record daily precipitation	14.3 mm (0.6 in)	20 of 100 (Routine)
Uccle	Belgium	Record daily precipitation	14.8 mm (0.6 in)	20 of 100 (Routine)
Tenterfield (Federation Park)	Australia	Record daily precipitation	23.1 mm (0.9 in)	20 of 100 (Routine)
Putten (Gld)	Netherlands	Record daily precipitation	18.4 mm (0.7 in)	20 of 100 (Routine)
Freiburg	Germany	Record daily precipitation	16.2 mm (0.6 in)	19 of 100 (Routine)
Lexington Bluegrass AP	United States	Record low minimum temperature	-3.3 C (26.1 F)	19 of 100 (Routine)
Umea	Sweden	Record high minimum temperature	7.0 C (44.6 F)	18 of 100 (Routine)
Cudgewa North	Australia	Record daily precipitation	55.9 mm (2.2 in)	17 of 100 (Routine)
Warrnambool Shire Office	Australia	Record daily precipitation	8.6 mm (0.34 in)	17 of 100 (Routine)
St Albans	Canada	Record low minimum temperature	-16.1 C (3.0 F)	17 of 100 (Routine)
Stony Mountain	Canada	Record low maximum temperature	-3.9 C (25.0 F)	17 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record low minimum temperature	-11.1 C (12.0 F)	17 of 100 (Routine)
Moose Factory	Canada	Record low minimum temperature	-11.7 C (10.9 F)	16 of 100 (Routine)
Port Stanley	Canada	Record low maximum temperature	4.4 C (39.9 F)	16 of 100 (Routine)
Winterswijk	Netherlands	Record daily precipitation	12.9 mm (0.5 in)	16 of 100 (Routine)
Dubuque River	United States	Record daily snowfall	1.8 cm (0.7 in)	16 of 100 (Routine)
London South	Canada	Record low maximum temperature	3.9 C (39.0 F)	15 of 100 (Routine)
Alton	Canada	Record daily snowfall	2.0 cm (0.8 in)	15 of 100 (Routine)
Milwaukee Wb City	United States	Record daily snowfall	1.3 cm (0.5 in)	15 of 100 (Routine)
Huron Rgnl AP	United States	Record low minimum temperature	-14.4 C (6.1 F)	15 of 100 (Routine)
Madison Wb City	United States	Record daily snowfall	3.8 cm (1.5 in)	14 of 100 (Routine)
Cap Madeleine	Canada	Record daily precipitation	14.5 mm (0.6 in)	13 of 100 (Routine)
Arnsberg	Germany	Record daily precipitation	13.5 mm (0.5 in)	13 of 100 (Routine)
Wangerooge	Germany	Record daily precipitation	12.2 mm (0.5 in)	13 of 100 (Routine)
Ljungby	Sweden	Record daily precipitation	10.9 mm (0.4 in)	13 of 100 (Routine)
Dubuque River	United States	Record low maximum temperature	4.4 C (39.9 F)	13 of 100 (Routine)
Little Rock St Capitol	United States	Record low minimum temperature	2.2 C (36.0 F)	11 of 100 (Routine)
Middletown 4 W	United States	Record low minimum temperature	-2.8 C (27.0 F)	11 of 100 (Routine)
Concordia ASOS	United States	Record low minimum temperature	-6.1 C (21.0 F)	11 of 100 (Routine)
Green Bay	United States	Record low maximum temperature	2.8 C (37.0 F)	11 of 100 (Routine)
Cottam	Canada	Record daily precipitation	21.6 mm (0.9 in)	10 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record low minimum temperature	-14.1 C (6.6 F)	10 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record low minimum temperature	-5.0 C (23.0 F)	10 of 100 (Routine)
Helmond	Netherlands	Record daily precipitation	13.2 mm (0.5 in)	9 of 100 (Routine)
Vinga	Sweden	Record daily precipitation	12.6 mm (0.5 in)	9 of 100 (Routine)
Bjuraker	Sweden	Record high minimum temperature	6.5 C (43.7 F)	9 of 100 (Routine)
Sedan (Sandleton)	Australia	Record daily precipitation	3.8 mm (0.15 in)	8 of 100 (Routine)
Glenfield (Macquarie)	Australia	Record daily precipitation	6.4 mm (0.25 in)	7 of 100 (Routine)
Orebro	Sweden	Record daily precipitation	14.5 mm (0.6 in)	7 of 100 (Routine)
Chattanooga Wb City	United States	Record low maximum temperature	10.0 C (50.0 F)	7 of 100 (Routine)
Wentworth (Cuthero)	Australia	Record daily precipitation	15.5 mm (0.6 in)	6 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record low maximum temperature	2.2 C (36.0 F)	6 of 100 (Routine)
Alice Springs Post Office	Australia	Record high minimum temperature	22.2 C (72.0 F)	5 of 100 (Routine)
Holmogadd A	Sweden	Record daily precipitation	8.2 mm (0.32 in)	5 of 100 (Routine)
Houston Wb City	United States	Record low maximum temperature	18.3 C (64.9 F)	5 of 100 (Routine)
Montgomery Wb City	United States	Record low maximum temperature	16.7 C (62.1 F)	3 of 100 (Routine)
Lakefield	Canada	Record low maximum temperature	3.3 C (37.9 F)	2 of 100 (Routine)
Algiers-Ville/Universite	Algeria	Record low minimum temperature	13.0 C (55.4 F)	1 of 100 (Routine)
Hamilton	Canada	Record low maximum temperature	5.6 C (42.1 F)	1 of 100 (Routine)
Cape May 2 NW	United States	Record low minimum temperature	5.0 C (41.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

62 records

Records set or tied on 23 October 1917 by type: Highest daily maximum 1, Lowest daily maximum 12, Highest daily minimum 3, Lowest daily minimum 13, Heaviest daily rainfall 28, Heaviest daily snowfall 5.

Records on 23 October 1917 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	12
Highest daily minimum	3
Lowest daily minimum	13
Heaviest daily rainfall	28
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 23 October 1917 by timescale: all-time 0, monthly 1, daily 61.

How Much Records Were Beaten By

55 broken records

Margins by which the 55 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 56.0. Ties are not counted.

Top 20 by Significance

23 October 1917

Top 20 records on 23 October 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 October 1917	Casino Airport, AU	daily rain	59.2 mm (2.3 in)	46.2 mm (1.8 in)	16 years	45 of 100 (Notable)
23 October 1917	Varberg, SE	daily rain	25.5 mm (1.0 in)	16.0 mm (0.6 in)	16 years	39 of 100 (Notable)
23 October 1917	Palermo, IT	daily rain	29.8 mm (1.2 in)	9.3 mm (0.37 in)	44 years	31 of 100 (Routine)
23 October 1917	Boras, SE	daily rain	29.5 mm (1.2 in)	17.4 mm (0.7 in)	6 years	30 of 100 (Routine)
23 October 1917	Minnedosa, CA	daily low min	-22.2 C (-8.0 F)	7.2 C (13.0 F)	29 years	25 of 100 (Routine)
23 October 1917	Penshurst (Gresford), AU	daily rain	38.4 mm (1.5 in)	19.9 mm (0.8 in)	4 years	22 of 100 (Routine)
23 October 1917	Lucknow, CA	daily snowfall	5.6 cm (2.2 in)	5.6 cm (2.2 in)	31 years	21 of 100 (Routine)
23 October 1917	Halmstad, SE	daily rain	23.5 mm (0.9 in)	11.9 mm (0.5 in)	52 years	20 of 100 (Routine)
23 October 1917	Koebenhavn - Meteorologisk Ins, DK	daily rain	19.5 mm (0.8 in)	11.2 mm (0.4 in)	29 years	20 of 100 (Routine)
23 October 1917	Koebenhavn: Landbohojskolen-1, DK	daily rain	21.6 mm (0.9 in)	11.1 mm (0.4 in)	29 years	20 of 100 (Routine)
23 October 1917	Nidingen A, SE	daily rain	14.3 mm (0.6 in)	7.8 mm (0.31 in)	34 years	20 of 100 (Routine)
23 October 1917	Uccle, BE	daily rain	14.8 mm (0.6 in)	7.0 mm (0.28 in)	31 years	20 of 100 (Routine)
23 October 1917	Tenterfield (Federation Park), AU	daily rain	23.1 mm (0.9 in)	9.1 mm (0.36 in)	31 years	20 of 100 (Routine)
23 October 1917	Putten (Gld), NL	daily rain	18.4 mm (0.7 in)	3.0 mm (0.12 in)	39 years	20 of 100 (Routine)
23 October 1917	Freiburg, DE	daily rain	16.2 mm (0.6 in)	7.1 mm (0.28 in)	22 years	19 of 100 (Routine)
23 October 1917	Lexington Bluegrass AP, US	daily low min	-3.3 C (26.1 F)	4.4 C (7.9 F)	25 years	19 of 100 (Routine)
23 October 1917	Umea, SE	daily high min	7.0 C (44.6 F)	5.0 C (9.0 F)	18 years	18 of 100 (Routine)
23 October 1917	Cudgewa North, AU	daily rain	55.9 mm (2.2 in)	13.5 mm (0.5 in)	2 years	17 of 100 (Routine)
23 October 1917	Warrnambool Shire Office, AU	daily rain	8.6 mm (0.34 in)	2.8 mm (0.11 in)	26 years	17 of 100 (Routine)
23 October 1917	St Albans, CA	daily low min	-16.1 C (3.0 F)	4.4 C (7.9 F)	21 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

1795 to 1917

Records set or tied on this calendar date in each year from 1795 to 1917. 1917 had 62 records.

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

Records on 10-23 in each year
Year	Records
1795	1
1802	2
1843	1
1845	1
1850	1
1851	2
1855	1
1859	2
1861	1
1863	1
1865	2
1866	1
1869	3
1871	2
1872	1
1873	2
1876	2
1878	1
1880	7
1881	2
1882	1
1883	1
1885	2
1888	1
1889	2
1890	2
1891	8
1892	3
1893	3
1894	5
1895	4
1896	2
1897	3
1898	5
1899	4
1900	8
1901	7
1902	7
1903	10
1904	7
1905	15
1906	17
1907	5
1908	19
1909	12
1910	6
1911	40
1912	50
1913	38
1914	9
1915	167
1916	290
1917	62
1918	12
1919	42
1920	262
1921	58
1922	38
1923	165
1924	160
1925	191
1926	131
1927	266
1928	120
1929	352
1930	310
1931	353
1932	310
1933	241
1934	333
1935	519
1936	490
1937	816
1938	403
1939	717
1940	304
1941	499
1942	306
1943	446
1944	283
1945	533
1946	258
1947	631
1948	251
1949	432
1950	507
1951	626
1952	432
1953	373
1954	317
1955	266
1956	587
1957	1,266
1958	255
1959	682
1960	341
1961	329
1962	141
1963	1,297
1964	264
1965	330
1966	625
1967	297
1968	175
1969	1,200
1970	617
1971	705
1972	601
1973	712
1974	653
1975	1,028
1976	879
1977	578
1978	570
1979	1,094
1980	584
1981	1,502
1982	1,071
1983	853
1984	1,261
1985	846
1986	968
1987	694
1988	619
1989	1,363
1990	954
1991	1,232
1992	1,176
1993	670
1994	558
1995	1,471
1996	1,396
1997	1,172
1998	1,221
1999	1,011
2000	1,275
2001	1,091
2002	1,868
2003	1,952
2004	1,224
2005	679
2006	1,976
2007	1,673
2008	993
2009	838
2010	683
2011	701
2012	1,017
2013	754
2014	755
2015	760
2016	460
2017	603
2018	322
2019	459
2020	1,777
2021	298
2022	1,342
2023	544
2024	674
2025	343

Download the Data

Data for records on 1917-10-23: 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 10	43
10 to 20	9
20 to 30	1
30 to 40	0
40 to 50	1
50 to 60	1