Weather Records on 23 May 1939

415 weather records were set or tied worldwide on 23 May 1939. Highest significance: Arad, RO.

Key Facts for 23 May 1939

On 23 May 1939, 415 weather records were set or tied at long-record stations worldwide.
304 were record highs and 34 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 17 monthly and 398 daily.
Arad set a daily record precipitation of 35.2 mm (1.4 in) on 23 May 1939.
Across 158 earlier years (1793 to 2026) the same calendar date averaged 463 records.

Record Map

415 stations

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

Weather records on 23 May 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Arad	Romania	Record daily precipitation	35.2 mm (1.4 in)	53 of 100 (Notable)
Poltava	Ukraine	Record daily precipitation	29.9 mm (1.2 in)	45 of 100 (Notable)
Vaniyambadi	India	Record daily precipitation	90.7 mm (3.6 in)	44 of 100 (Notable)
Kremsmuenster	Austria	Record daily precipitation	39.2 mm (1.5 in)	43 of 100 (Notable)
Ambur	India	Record daily precipitation	71.1 mm (2.8 in)	43 of 100 (Notable)
Jamalpur	India	Record daily precipitation	39.4 mm (1.6 in)	38 of 100 (Notable)
Kennebec	United States	Record daily precipitation	46.7 mm (1.8 in)	37 of 100 (Notable)
Tuckerton 2 NE	United States	Record daily precipitation	32.5 mm (1.3 in)	34 of 100 (Routine)
Kollegal	India	Record daily precipitation	77.2 mm (3.0 in)	27 of 100 (Routine)
Hays 1 S	United States	Record high maximum temperature	41.1 C (106.0 F)	27 of 100 (Routine)
Coldwater	United States	Record high maximum temperature	39.4 C (102.9 F)	26 of 100 (Routine)
Croydon State School	Australia	Record daily precipitation	27.9 mm (1.1 in)	24 of 100 (Routine)
Ottawa Cda	Canada	Record daily precipitation	33.8 mm (1.3 in)	24 of 100 (Routine)
Oktjabrskij-Gorodok	Russia	Record high minimum temperature	18.5 C (65.3 F)	24 of 100 (Routine)
Mackay Post Office	Australia	Record high maximum temperature	28.7 C (83.7 F)	23 of 100 (Routine)
Ringwood 2	Australia	Record daily precipitation	30.5 mm (1.2 in)	22 of 100 (Routine)
Bogoroditskoye-Fenino	Russia	Record high maximum temperature	31.5 C (88.7 F)	22 of 100 (Routine)
Tarpon Spgs Sewage Plt	United States	Record low minimum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Greensburg	United States	Record high maximum temperature	39.4 C (102.9 F)	22 of 100 (Routine)
Hoxie	United States	Record high maximum temperature	37.8 C (100.0 F)	22 of 100 (Routine)
Ft Reno	United States	Record high maximum temperature	37.8 C (100.0 F)	22 of 100 (Routine)
Norman 3SSE	United States	Record high maximum temperature	37.2 C (99.0 F)	22 of 100 (Routine)
Clarendon	United States	Record high minimum temperature	23.3 C (73.9 F)	22 of 100 (Routine)
Ellsworth	United States	Record high maximum temperature	42.2 C (108.0 F)	21 of 100 (Routine)
McPherson	United States	Record high maximum temperature	41.1 C (106.0 F)	21 of 100 (Routine)
Medicine Lodge	United States	Record high maximum temperature	38.9 C (102.0 F)	21 of 100 (Routine)
Pratt 3NW	United States	Record high maximum temperature	39.4 C (102.9 F)	21 of 100 (Routine)
Salina	United States	Record high maximum temperature	41.1 C (106.0 F)	21 of 100 (Routine)
Mottinger	United States	Record low minimum temperature	1.7 C (35.1 F)	21 of 100 (Routine)
Laura	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Dillon U of Montana Western	United States	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Goolwa Council Depot	Australia	Record daily precipitation	6.4 mm (0.25 in)	20 of 100 (Routine)
Lodi	United States	Record daily precipitation	5.3 mm (0.21 in)	20 of 100 (Routine)
Norris Madison Pwr House	United States	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Arrah Obsy Sr	India	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Daudnagar(Haspur)	India	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Cut Bank AP	United States	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Parramatta	Australia	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Gidhour	India	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Nagamangala	India	Record daily precipitation	38.1 mm (1.5 in)	20 of 100 (Routine)
Krishnagiri	India	Record daily precipitation	81.8 mm (3.2 in)	20 of 100 (Routine)
Lares	Puerto Rico [United States]	Record low maximum temperature	27.2 C (81.0 F)	20 of 100 (Routine)
Bezeck	Russia	Record daily precipitation	8.5 mm (0.33 in)	20 of 100 (Routine)
De Sabla	United States	Record daily precipitation	30.2 mm (1.2 in)	20 of 100 (Routine)
Garden City	United States	Record high maximum temperature	36.7 C (98.1 F)	20 of 100 (Routine)
Ulysses 3NE	United States	Record high maximum temperature	37.2 C (99.0 F)	20 of 100 (Routine)
Chickasha	United States	Record high maximum temperature	37.8 C (100.0 F)	20 of 100 (Routine)
Philadelphia Shawmont	United States	Record daily precipitation	38.6 mm (1.5 in)	20 of 100 (Routine)
Marshall	United States	Record high minimum temperature	27.8 C (82.0 F)	20 of 100 (Routine)
Sydney Botanic Gardens	Australia	Record daily precipitation	6.9 mm (0.27 in)	19 of 100 (Routine)
Khol	India	Record daily precipitation	6.1 mm (0.24 in)	19 of 100 (Routine)
Valley Head	United States	Record high minimum temperature	20.6 C (69.1 F)	19 of 100 (Routine)
Hutchinson River	United States	Record high maximum temperature	38.9 C (102.0 F)	19 of 100 (Routine)
Norwich	United States	Record high maximum temperature	38.3 C (100.9 F)	19 of 100 (Routine)
McGill	United States	Record low maximum temperature	10.0 C (50.0 F)	19 of 100 (Routine)
Holdenville 2SSE	United States	Record high maximum temperature	35.0 C (95.0 F)	19 of 100 (Routine)
Stillwater 2 W	United States	Record high maximum temperature	37.2 C (99.0 F)	19 of 100 (Routine)
Eugene	United States	Record daily precipitation	7.4 mm (0.29 in)	19 of 100 (Routine)
Sherman	United States	Record high maximum temperature	36.1 C (97.0 F)	19 of 100 (Routine)
Mahespur	India	Record daily precipitation	27.9 mm (1.1 in)	18 of 100 (Routine)

Counts by Type and Timescale

415 records

Records set or tied on 23 May 1939 by type: Highest daily maximum 235, Lowest daily maximum 15, Highest daily minimum 69, Lowest daily minimum 19, Heaviest daily rainfall 77.

Records on 23 May 1939 by type
Record type	Records
Highest daily maximum	235
Lowest daily maximum	15
Highest daily minimum	69
Lowest daily minimum	19
Heaviest daily rainfall	77
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 23 May 1939 by timescale: all-time 0, monthly 17, daily 398.

How Much Records Were Beaten By

319 broken records

Margins by which the 319 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 66.8. Ties are not counted.

Top 20 by Significance

23 May 1939

Top 20 records on 23 May 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 May 1939	Arad, RO	daily rain	35.2 mm (1.4 in)	27.6 mm (1.1 in)	37 years	53 of 100 (Notable)
23 May 1939	Poltava, UA	daily rain	29.9 mm (1.2 in)	29.6 mm (1.2 in)	5 years	45 of 100 (Notable)
23 May 1939	Vaniyambadi, IN	daily rain	90.7 mm (3.6 in)	66.8 mm (2.6 in)	5 years	44 of 100 (Notable)
23 May 1939	Kremsmuenster, AT	daily rain	39.2 mm (1.5 in)	17.7 mm (0.7 in)	57 years	43 of 100 (Notable)
23 May 1939	Ambur, IN	daily rain	71.1 mm (2.8 in)	54.8 mm (2.2 in)	1 year	43 of 100 (Notable)
23 May 1939	Jamalpur, IN	daily rain	39.4 mm (1.6 in)	31.3 mm (1.2 in)	25 years	38 of 100 (Notable)
23 May 1939	Kennebec, US	daily rain	46.7 mm (1.8 in)	28.9 mm (1.1 in)	24 years	37 of 100 (Notable)
23 May 1939	Tuckerton 2 NE, US	daily rain	32.5 mm (1.3 in)	21.1 mm (0.8 in)	40 years	34 of 100 (Routine)
23 May 1939	Kollegal, IN	daily rain	77.2 mm (3.0 in)	33.5 mm (1.3 in)	4 years	27 of 100 (Routine)
23 May 1939	Hays 1 S, US	monthly high max	41.1 C (106.0 F)	1.1 C (2.0 F)	40 years	27 of 100 (Routine)
23 May 1939	Coldwater, US	monthly high max	39.4 C (102.9 F)	0.5 C (0.9 F)	42 years	26 of 100 (Routine)
23 May 1939	Croydon State School, AU	daily rain	27.9 mm (1.1 in)	8.1 mm (0.32 in)	28 years	24 of 100 (Routine)
23 May 1939	Ottawa Cda, CA	daily rain	33.8 mm (1.3 in)	15.0 mm (0.6 in)	0 years	24 of 100 (Routine)
23 May 1939	Oktjabrskij-Gorodok, RU	daily high min	18.5 C (65.3 F)	3.2 C (5.8 F)	40 years	24 of 100 (Routine)
23 May 1939	Mackay Post Office, AU	daily high max	28.7 C (83.7 F)	1.5 C (2.7 F)	34 years	23 of 100 (Routine)
23 May 1939	Ringwood 2, AU	daily rain	30.5 mm (1.2 in)	6.4 mm (0.25 in)	24 years	22 of 100 (Routine)
23 May 1939	Bogoroditskoye-Fenino, RU	daily high max	31.5 C (88.7 F)	1.8 C (3.2 F)	47 years	22 of 100 (Routine)
23 May 1939	Tarpon Spgs Sewage Plt, US	daily low min	13.9 C (57.0 F)	1.1 C (2.0 F)	46 years	22 of 100 (Routine)
23 May 1939	Greensburg, US	monthly high max	39.4 C (102.9 F)	1.1 C (2.0 F)	25 years	22 of 100 (Routine)
23 May 1939	Hoxie, US	daily high max	37.8 C (100.0 F)	5.6 C (10.1 F)	32 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 1939

Records set or tied on this calendar date in each year from 1793 to 1939. 1939 had 415 records.

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

Records on 05-23 in each year
Year	Records
1793	1
1794	1
1798	1
1817	1
1818	1
1837	3
1845	1
1847	2
1857	1
1863	1
1865	2
1866	5
1867	7
1870	2
1871	1
1875	1
1877	1
1878	1
1880	1
1884	2
1885	2
1886	4
1887	1
1889	2
1891	11
1893	3
1894	1
1895	3
1896	4
1897	3
1898	8
1899	3
1900	12
1901	3
1902	12
1903	6
1904	14
1905	10
1906	23
1907	11
1908	13
1909	23
1910	26
1911	39
1912	31
1913	29
1914	33
1915	13
1916	44
1917	58
1918	36
1919	120
1920	37
1921	92
1922	82
1923	99
1924	230
1925	325
1926	204
1927	243
1928	177
1929	221
1930	199
1931	719
1932	358
1933	443
1934	203
1935	369
1936	568
1937	156
1938	390
1939	415
1940	324
1941	676
1942	235
1943	342
1944	784
1945	241
1946	311
1947	285
1948	273
1949	612
1950	490
1951	400
1952	597
1953	777
1954	496
1955	650
1956	498
1957	653
1958	744
1959	486
1960	395
1961	412
1962	677
1963	1,153
1964	964
1965	477
1966	391
1967	1,055
1968	578
1969	437
1970	314
1971	659
1972	449
1973	371
1974	678
1975	855
1976	556
1977	596
1978	703
1979	730
1980	1,202
1981	862
1982	717
1983	1,123
1984	1,027
1985	608
1986	626
1987	745
1988	662
1989	1,106
1990	1,660
1991	1,244
1992	1,423
1993	845
1994	690
1995	1,106
1996	1,114
1997	983
1998	947
1999	705
2000	1,372
2001	1,441
2002	1,537
2003	954
2004	1,275
2005	908
2006	1,122
2007	1,170
2008	1,472
2009	805
2010	1,275
2011	1,001
2012	1,006
2013	929
2014	858
2015	667
2016	679
2017	602
2018	552
2019	1,044
2020	631
2021	837
2022	807
2023	316
2024	760
2025	865
2026	804

Download the Data

Data for records on 1939-05-23: 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	297
10 to 20	13
20 to 30	5
30 to 40	2
40 to 50	0
50 to 60	1
60 to 70	1