Weather Records on 31 July 1939

357 weather records were set or tied worldwide on 31 July 1939. Highest significance: Menindee (Weinteriga), AU.

Key Facts for 31 July 1939

On 31 July 1939, 357 weather records were set or tied at long-record stations worldwide.
93 were record highs and 25 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 355 daily.
Menindee (Weinteriga) set a daily record precipitation of 34.0 mm (1.3 in) on 31 July 1939.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 472 records.

Record Map

357 stations

357 station records on 31 July 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Menindee (Weinteriga)	Australia	Record daily precipitation	34.0 mm (1.3 in)	57 of 100 (Notable)
Potkabari	India	Record daily precipitation	140.0 mm (5.5 in)	53 of 100 (Notable)
Banka	India	Record daily precipitation	129.5 mm (5.1 in)	50 of 100 (Notable)
Bahragora	India	Record daily precipitation	125.7 mm (4.9 in)	50 of 100 (Notable)
Goodland	United States	Record daily precipitation	55.1 mm (2.2 in)	46 of 100 (Notable)
Sonamarg &	India	Record daily precipitation	51.3 mm (2.0 in)	45 of 100 (Notable)
Raipur	India	Record daily precipitation	133.1 mm (5.2 in)	44 of 100 (Notable)
Gongolgon Post Office	Australia	Record daily precipitation	28.2 mm (1.1 in)	43 of 100 (Notable)
Handia	India	Record daily precipitation	158.0 mm (6.2 in)	41 of 100 (Notable)
Weilmoringle	Australia	Record daily precipitation	29.5 mm (1.2 in)	40 of 100 (Notable)
Lila Lower	Australia	Record daily precipitation	27.4 mm (1.1 in)	37 of 100 (Notable)
Willamurra	Australia	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
Karchana	India	Record daily precipitation	120.9 mm (4.8 in)	37 of 100 (Notable)
Griffin	United States	Record daily precipitation	73.9 mm (2.9 in)	37 of 100 (Notable)
Azimganj	India	Record daily precipitation	102.1 mm (4.0 in)	36 of 100 (Notable)
Fort Bourke	Australia	Record daily precipitation	27.4 mm (1.1 in)	34 of 100 (Routine)
Ivanhoe (Wokabity)	Australia	Record daily precipitation	26.2 mm (1.0 in)	34 of 100 (Routine)
Louth (Bloxham Street)	Australia	Record daily precipitation	33.0 mm (1.3 in)	33 of 100 (Routine)
Arambagh	India	Record daily precipitation	92.7 mm (3.6 in)	32 of 100 (Routine)
Gorlitz	Germany	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Quebec	Canada	Record daily precipitation	29.5 mm (1.2 in)	29 of 100 (Routine)
Axel	Netherlands	Record daily precipitation	27.5 mm (1.1 in)	29 of 100 (Routine)
Pitea	Sweden	Record daily precipitation	26.4 mm (1.0 in)	29 of 100 (Routine)
Charlton	Australia	Record daily precipitation	28.4 mm (1.1 in)	27 of 100 (Routine)
Bangate	Australia	Record daily precipitation	27.9 mm (1.1 in)	26 of 100 (Routine)
Forbesganj	India	Record daily precipitation	102.6 mm (4.0 in)	26 of 100 (Routine)
Sherkawan	India	Record daily precipitation	90.9 mm (3.6 in)	26 of 100 (Routine)
Byrock Post Office	Australia	Record daily precipitation	35.6 mm (1.4 in)	25 of 100 (Routine)
Jamui	India	Record daily precipitation	51.3 mm (2.0 in)	25 of 100 (Routine)
Bic	Canada	Record daily precipitation	49.5 mm (1.9 in)	24 of 100 (Routine)
Uluberia	India	Record daily precipitation	95.8 mm (3.8 in)	24 of 100 (Routine)
Las Vegas 2 NW	United States	Record high minimum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Battleford	Canada	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Demagiri	India	Record daily precipitation	127.0 mm (5.0 in)	23 of 100 (Routine)
Ghatal	India	Record daily precipitation	92.7 mm (3.6 in)	23 of 100 (Routine)
Visby_Flygplats	Sweden	Record high minimum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Vastervik	Sweden	Record high minimum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Hernando	United States	Record low minimum temperature	16.1 C (61.0 F)	23 of 100 (Routine)
Tranebjerg	Denmark	Record high maximum temperature	29.2 C (84.6 F)	22 of 100 (Routine)
Kalyanganj	India	Record daily precipitation	95.3 mm (3.8 in)	22 of 100 (Routine)
Diamond Harbour	India	Record daily precipitation	102.9 mm (4.1 in)	22 of 100 (Routine)
Purdum	United States	Record daily precipitation	58.9 mm (2.3 in)	22 of 100 (Routine)
Boulia Airport	Australia	Record low maximum temperature	16.6 C (61.9 F)	21 of 100 (Routine)
Kristianstad	Sweden	Record high maximum temperature	28.0 C (82.4 F)	21 of 100 (Routine)
Vastervik	Sweden	Record high maximum temperature	31.9 C (89.4 F)	21 of 100 (Routine)
Boras	Sweden	Record high minimum temperature	16.5 C (61.7 F)	21 of 100 (Routine)
Wentworth (Cuthero)	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Tennant Creek Post Office	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Hillston (Hunthawang)	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Youhl Plain Tank	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Conargo Post Office	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Powell Creek	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Merrowie North	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Verhojansk	Russia	Record daily precipitation	14.1 mm (0.6 in)	20 of 100 (Routine)
East Toorale (Toorale Station)	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Hay (Eurolie)	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Hillston (Willanthry)	Australia	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Mooroopna	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Listowel Downs	Australia	Record daily precipitation	9.1 mm (0.36 in)	20 of 100 (Routine)
Bourke Post Office	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)

Counts by Type and Timescale

357 records

Records set or tied on 31 July 1939 by type: Highest daily maximum 25, Lowest daily maximum 12, Highest daily minimum 68, Lowest daily minimum 13, Heaviest daily rainfall 239.

Records on 31 July 1939 by type
Record type	Records
Highest daily maximum	25
Lowest daily maximum	12
Highest daily minimum	68
Lowest daily minimum	13
Heaviest daily rainfall	239
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 1939 by timescale: all-time 0, monthly 2, daily 355.

How Much Records Were Beaten By

307 broken records

Margins by which the 307 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 101.9. Ties are not counted.

Top 20 by Significance

31 July 1939

Top 20 records on 31 July 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1939	Menindee (Weinteriga), AU	daily rain	34.0 mm (1.3 in)	25.4 mm (1.0 in)	38 years	57 of 100 (Notable)
31 July 1939	Potkabari, IN	daily rain	140.0 mm (5.5 in)	101.9 mm (4.0 in)	33 years	53 of 100 (Notable)
31 July 1939	Banka, IN	daily rain	129.5 mm (5.1 in)	92.2 mm (3.6 in)	24 years	50 of 100 (Notable)
31 July 1939	Bahragora, IN	daily rain	125.7 mm (4.9 in)	89.6 mm (3.5 in)	29 years	50 of 100 (Notable)
31 July 1939	Goodland, US	daily rain	55.1 mm (2.2 in)	45.4 mm (1.8 in)	12 years	46 of 100 (Notable)
31 July 1939	Sonamarg &, IN	daily rain	51.3 mm (2.0 in)	37.1 mm (1.5 in)	6 years	45 of 100 (Notable)
31 July 1939	Raipur, IN	daily rain	133.1 mm (5.2 in)	73.4 mm (2.9 in)	21 years	44 of 100 (Notable)
31 July 1939	Gongolgon Post Office, AU	daily rain	28.2 mm (1.1 in)	18.5 mm (0.7 in)	48 years	43 of 100 (Notable)
31 July 1939	Handia, IN	daily rain	158.0 mm (6.2 in)	95.8 mm (3.8 in)	2 years	41 of 100 (Notable)
31 July 1939	Weilmoringle, AU	daily rain	29.5 mm (1.2 in)	19.3 mm (0.8 in)	39 years	40 of 100 (Notable)
31 July 1939	Lila Lower, AU	daily rain	27.4 mm (1.1 in)	16.7 mm (0.7 in)	38 years	37 of 100 (Notable)
31 July 1939	Willamurra, AU	daily rain	27.9 mm (1.1 in)	18.2 mm (0.7 in)	29 years	37 of 100 (Notable)
31 July 1939	Karchana, IN	daily rain	120.9 mm (4.8 in)	71.1 mm (2.8 in)	6 years	37 of 100 (Notable)
31 July 1939	Griffin, US	daily rain	73.9 mm (2.9 in)	51.5 mm (2.0 in)	8 years	37 of 100 (Notable)
31 July 1939	Azimganj, IN	daily rain	102.1 mm (4.0 in)	51.0 mm (2.0 in)	29 years	36 of 100 (Notable)
31 July 1939	Fort Bourke, AU	daily rain	27.4 mm (1.1 in)	17.2 mm (0.7 in)	18 years	34 of 100 (Routine)
31 July 1939	Ivanhoe (Wokabity), AU	daily rain	26.2 mm (1.0 in)	5.6 mm (0.22 in)	60 years	34 of 100 (Routine)
31 July 1939	Louth (Bloxham Street), AU	daily rain	33.0 mm (1.3 in)	13.2 mm (0.5 in)	38 years	33 of 100 (Routine)
31 July 1939	Arambagh, IN	daily rain	92.7 mm (3.6 in)	55.9 mm (2.2 in)	21 years	32 of 100 (Routine)
31 July 1939	Gorlitz, DE	daily high min	20.0 C (68.0 F)	1.9 C (3.4 F)	57 years	30 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

1804 to 1939

Records set or tied on this calendar date in each year from 1804 to 1939. 1939 had 357 records.

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

Records on 07-31 in each year
Year	Records
1804	1
1815	1
1816	1
1828	1
1834	1
1839	1
1840	1
1841	2
1851	1
1858	2
1860	4
1863	1
1866	1
1873	2
1876	1
1879	1
1884	1
1885	1
1886	1
1887	5
1889	2
1890	2
1891	1
1892	1
1893	3
1894	2
1896	2
1897	2
1898	5
1900	1
1901	3
1902	4
1903	16
1904	12
1905	10
1906	14
1907	17
1908	22
1909	15
1910	21
1911	29
1912	14
1913	31
1914	28
1915	71
1916	63
1917	126
1918	39
1919	27
1920	168
1921	112
1922	24
1923	236
1924	97
1925	349
1926	226
1927	161
1928	145
1929	134
1930	143
1931	441
1932	314
1933	504
1934	449
1935	418
1936	548
1937	297
1938	417
1939	357
1940	415
1941	323
1942	342
1943	342
1944	312
1945	499
1946	426
1947	341
1948	341
1949	406
1950	511
1951	364
1952	472
1953	414
1954	459
1955	813
1956	574
1957	268
1958	374
1959	424
1960	622
1961	504
1962	348
1963	294
1964	637
1965	858
1966	606
1967	326
1968	637
1969	440
1970	576
1971	1,850
1972	667
1973	583
1974	363
1975	1,386
1976	530
1977	543
1978	754
1979	501
1980	1,047
1981	672
1982	767
1983	901
1984	777
1985	1,065
1986	1,021
1987	934
1988	940
1989	1,753
1990	911
1991	647
1992	1,169
1993	1,031
1994	1,207
1995	1,223
1996	1,084
1997	984
1998	1,195
1999	1,643
2000	1,001
2001	1,414
2002	1,080
2003	1,157
2004	779
2005	742
2006	1,405
2007	1,023
2008	911
2009	1,156
2010	1,485
2011	1,040
2012	712
2013	469
2014	1,000
2015	948
2016	501
2017	485
2018	1,135
2019	551
2020	1,034
2021	1,020
2022	861
2023	671
2024	748
2025	836
2026	754

Download the Data

Data for records on 1939-07-31: 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	282
20 to 40	12
40 to 60	7
60 to 80	2
80 to 100	3
100 to 120	1