Weather Records on 23 October 1939

717 weather records were set or tied worldwide on 23 October 1939. Highest significance: Waianae 798, US.

Key Facts for 23 October 1939

On 23 October 1939, 717 weather records were set or tied at long-record stations worldwide.
365 were record highs and 22 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 21 monthly and 693 daily.
Waianae 798 set an all-time record daily precipitation of 246.9 mm (9.7 in) on 23 October 1939.
Across 160 earlier years (1795 to 2025) the same calendar date averaged 461 records.

Record Map

717 stations

717 station records on 23 October 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 October 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Waianae 798	United States	Record daily precipitation	246.9 mm (9.7 in)	69 of 100 (Major)
Box Creek Tank	Australia	Record daily precipitation	74.9 mm (2.9 in)	68 of 100 (Major)
Moanalua 770	United States	Record daily precipitation	205.2 mm (8.1 in)	67 of 100 (Major)
Maunawili Rch	United States	Record daily precipitation	242.8 mm (9.6 in)	59 of 100 (Notable)
Minto Surrey Street	Australia	Record daily precipitation	92.7 mm (3.6 in)	55 of 100 (Notable)
High River	Canada	Record daily snowfall	20.3 cm (8.0 in)	54 of 100 (Notable)
Aiea Fld 764A	United States	Record daily precipitation	152.1 mm (6.0 in)	53 of 100 (Notable)
Bogantungan Post Office	Australia	Record daily precipitation	55.4 mm (2.2 in)	51 of 100 (Notable)
Tungamah	Australia	Record daily precipitation	52.3 mm (2.1 in)	51 of 100 (Notable)
Waimanalo 794	United States	Record daily precipitation	294.4 mm (11.6 in)	49 of 100 (Notable)
Kealia 1112	United States	Record daily precipitation	117.3 mm (4.6 in)	48 of 100 (Notable)
Lihue 1020	United States	Record daily precipitation	84.1 mm (3.3 in)	46 of 100 (Notable)
Manoa 712.1	United States	Record daily precipitation	150.6 mm (5.9 in)	46 of 100 (Notable)
Luakaha Lower 782	United States	Record daily precipitation	116.8 mm (4.6 in)	45 of 100 (Notable)
Manoharpur	India	Record daily precipitation	78.2 mm (3.1 in)	44 of 100 (Notable)
Chakradhanpur	India	Record daily precipitation	79.8 mm (3.1 in)	43 of 100 (Notable)
Campbelltown 1	Australia	Record daily precipitation	58.9 mm (2.3 in)	42 of 100 (Notable)
Wani	India	Record daily precipitation	68.6 mm (2.7 in)	41 of 100 (Notable)
Boetsap (Pol)	South Africa	Record daily precipitation	27.4 mm (1.1 in)	41 of 100 (Notable)
Edmonton	Canada	Record daily snowfall	21.3 cm (8.4 in)	38 of 100 (Notable)
Asifabad(Rev)	India	Record daily precipitation	60.2 mm (2.4 in)	38 of 100 (Notable)
The Rock (Bullenbong)	Australia	Record daily precipitation	34.8 mm (1.4 in)	37 of 100 (Notable)
Nelson	Canada	Record daily precipitation	26.9 mm (1.1 in)	37 of 100 (Notable)
Elandsfontein	South Africa	Record daily precipitation	40.1 mm (1.6 in)	37 of 100 (Notable)
Banff	Canada	Record daily snowfall	25.4 cm (10.0 in)	36 of 100 (Notable)
Sion	Canada	Record daily precipitation	25.4 mm (1.0 in)	35 of 100 (Notable)
Wetaskiwin	Canada	Record daily snowfall	27.9 cm (11.0 in)	35 of 100 (Notable)
Chas	India	Record daily precipitation	79.2 mm (3.1 in)	35 of 100 (Notable)
Gumla	India	Record daily precipitation	58.4 mm (2.3 in)	35 of 100 (Notable)
Kaslo	Canada	Record daily precipitation	34.3 mm (1.4 in)	34 of 100 (Routine)
Makaweli 965	United States	Record daily precipitation	81.0 mm (3.2 in)	34 of 100 (Routine)
Gerringong (Mayflower Village)	Australia	Record daily precipitation	45.5 mm (1.8 in)	33 of 100 (Routine)
Chandur Bazar	India	Record daily precipitation	75.4 mm (3.0 in)	33 of 100 (Routine)
Finley Post Office	Australia	Record daily precipitation	41.4 mm (1.6 in)	32 of 100 (Routine)
Moulamein Post Office	Australia	Record daily precipitation	48.8 mm (1.9 in)	32 of 100 (Routine)
Calgary Int'l A	Canada	Record daily snowfall	15.2 cm (6.0 in)	32 of 100 (Routine)
Nizamabad	India	Record daily precipitation	146.1 mm (5.8 in)	32 of 100 (Routine)
Lacombe Cda	Canada	Record daily snowfall	17.8 cm (7.0 in)	31 of 100 (Routine)
Hohenpeissenberg	Germany	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Bidar	India	Record daily precipitation	50.3 mm (2.0 in)	31 of 100 (Routine)
Bemetara	India	Record daily precipitation	39.6 mm (1.6 in)	31 of 100 (Routine)
Manbazar	India	Record daily precipitation	58.9 mm (2.3 in)	31 of 100 (Routine)
Wanganella (Zara)	Australia	Record daily precipitation	29.0 mm (1.1 in)	30 of 100 (Routine)
Gandai	India	Record daily precipitation	49.3 mm (1.9 in)	30 of 100 (Routine)
San Jacinto	United States	Record high minimum temperature	17.8 C (64.0 F)	29 of 100 (Routine)
Hillsdown	Canada	Record daily snowfall	12.7 cm (5.0 in)	28 of 100 (Routine)
Corowa Airport	Australia	Record daily precipitation	57.9 mm (2.3 in)	27 of 100 (Routine)
Narrandera Post Office	Australia	Record daily precipitation	30.0 mm (1.2 in)	27 of 100 (Routine)
Kremsmuenster	Austria	Record daily precipitation	29.0 mm (1.1 in)	27 of 100 (Routine)
Pekisko	Canada	Record daily snowfall	26.7 cm (10.5 in)	27 of 100 (Routine)
Kanas	India	Record daily precipitation	96.5 mm (3.8 in)	27 of 100 (Routine)
Kaanapali AP 453.1	United States	Record daily precipitation	43.2 mm (1.7 in)	27 of 100 (Routine)
Sion	Canada	Record daily snowfall	25.4 cm (10.0 in)	26 of 100 (Routine)
Alix	Canada	Record daily snowfall	14.0 cm (5.5 in)	26 of 100 (Routine)
Pekisko	Canada	Record daily precipitation	26.7 mm (1.1 in)	26 of 100 (Routine)
Nandikottur	India	Record daily precipitation	46.0 mm (1.8 in)	26 of 100 (Routine)
Purnea	India	Record daily precipitation	65.0 mm (2.6 in)	26 of 100 (Routine)
Nandoura	Australia	Record daily precipitation	31.8 mm (1.3 in)	25 of 100 (Routine)
Jagnathpur	India	Record daily precipitation	31.5 mm (1.2 in)	25 of 100 (Routine)
Sampagaon-Bailh	India	Record daily precipitation	55.4 mm (2.2 in)	25 of 100 (Routine)

Counts by Type and Timescale

717 records

Records set or tied on 23 October 1939 by type: Highest daily maximum 313, Lowest daily maximum 16, Highest daily minimum 52, Lowest daily minimum 6, Heaviest daily rainfall 309, Heaviest daily snowfall 21.

Records on 23 October 1939 by type
Record type	Records
Highest daily maximum	313
Lowest daily maximum	16
Highest daily minimum	52
Lowest daily minimum	6
Heaviest daily rainfall	309
Heaviest daily snowfall	21
Deepest snow cover	0

Records on 23 October 1939 by timescale: all-time 3, monthly 21, daily 693.

How Much Records Were Beaten By

612 broken records

Margins by which the 612 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 229.0. Ties are not counted.

Top 20 by Significance

23 October 1939

Top 20 records on 23 October 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 October 1939	Waianae 798, US	all-time rain	246.9 mm (9.7 in)	60.0 mm (2.4 in)	20 years	69 of 100 (Major)
23 October 1939	Box Creek Tank, AU	monthly rain	74.9 mm (2.9 in)	32.5 mm (1.3 in)	45 years	68 of 100 (Major)
23 October 1939	Moanalua 770, US	all-time rain	205.2 mm (8.1 in)	44.7 mm (1.8 in)	22 years	67 of 100 (Major)
23 October 1939	Maunawili Rch, US	monthly rain	242.8 mm (9.6 in)	83.0 mm (3.3 in)	20 years	59 of 100 (Notable)
23 October 1939	Minto Surrey Street, AU	daily rain	92.7 mm (3.6 in)	55.9 mm (2.2 in)	33 years	55 of 100 (Notable)
23 October 1939	High River, CA	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	36 years	54 of 100 (Notable)
23 October 1939	Aiea Fld 764A, US	monthly rain	152.1 mm (6.0 in)	56.3 mm (2.2 in)	2 years	53 of 100 (Notable)
23 October 1939	Bogantungan Post Office, AU	daily rain	55.4 mm (2.2 in)	46.3 mm (1.8 in)	39 years	51 of 100 (Notable)
23 October 1939	Tungamah, AU	daily rain	52.3 mm (2.1 in)	29.4 mm (1.2 in)	22 years	51 of 100 (Notable)
23 October 1939	Waimanalo 794, US	all-time rain	294.4 mm (11.6 in)	33.0 mm (1.3 in)	15 years	49 of 100 (Notable)
23 October 1939	Kealia 1112, US	daily rain	117.3 mm (4.6 in)	84.8 mm (3.3 in)	16 years	48 of 100 (Notable)
23 October 1939	Lihue 1020, US	daily rain	84.1 mm (3.3 in)	60.5 mm (2.4 in)	12 years	46 of 100 (Notable)
23 October 1939	Manoa 712.1, US	monthly rain	150.6 mm (5.9 in)	42.4 mm (1.7 in)	2 years	46 of 100 (Notable)
23 October 1939	Luakaha Lower 782, US	daily rain	116.8 mm (4.6 in)	60.4 mm (2.4 in)	16 years	45 of 100 (Notable)
23 October 1939	Manoharpur, IN	daily rain	78.2 mm (3.1 in)	69.1 mm (2.7 in)	6 years	44 of 100 (Notable)
23 October 1939	Chakradhanpur, IN	daily rain	79.8 mm (3.1 in)	63.0 mm (2.5 in)	2 years	43 of 100 (Notable)
23 October 1939	Campbelltown 1, AU	daily rain	58.9 mm (2.3 in)	26.6 mm (1.0 in)	33 years	42 of 100 (Notable)
23 October 1939	Wani, IN	daily rain	68.6 mm (2.7 in)	61.0 mm (2.4 in)	22 years	41 of 100 (Notable)
23 October 1939	Boetsap (Pol), ZA	daily rain	27.4 mm (1.1 in)	20.8 mm (0.8 in)	20 years	41 of 100 (Notable)
23 October 1939	Edmonton, CA	daily snowfall	21.3 cm (8.4 in)	17.0 cm (6.7 in)	5 years	38 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

1795 to 1939

Records set or tied on this calendar date in each year from 1795 to 1939. 1939 had 717 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 1939-10-23: 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 50	585
50 to 100	19
100 to 150	4
150 to 200	2
200 to 250	2