Weather Records on 31 July 1940

415 weather records were set or tied worldwide on 31 July 1940. Highest significance: Pearston (Pol), ZA.

Key Facts for 31 July 1940

On 31 July 1940, 415 weather records were set or tied at long-record stations worldwide.
166 were record highs and 38 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 405 daily.
Pearston (Pol) set a daily record precipitation of 35.8 mm (1.4 in) on 31 July 1940.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 471 records.

Record Map

415 stations

415 station records on 31 July 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pearston (Pol)	South Africa	Record daily precipitation	35.8 mm (1.4 in)	57 of 100 (Notable)
Kaanapali AP 453.1	United States	Record daily precipitation	84.3 mm (3.3 in)	57 of 100 (Notable)
Walsingham 1	South Africa	Record daily precipitation	42.9 mm (1.7 in)	54 of 100 (Notable)
Pisangan	India	Record daily precipitation	118.6 mm (4.7 in)	53 of 100 (Notable)
Borzja	Russia	Record daily precipitation	44.7 mm (1.8 in)	53 of 100 (Notable)
Aberdeen Rd (Sar)	South Africa	Record daily precipitation	27.9 mm (1.1 in)	53 of 100 (Notable)
Cookhouse (Sar)	South Africa	Record daily precipitation	28.7 mm (1.1 in)	52 of 100 (Notable)
Cheviot Fells	South Africa	Record daily precipitation	25.9 mm (1.0 in)	52 of 100 (Notable)
Somerset East	South Africa	Record daily precipitation	38.9 mm (1.5 in)	51 of 100 (Notable)
Middelwater	South Africa	Record daily precipitation	34.3 mm (1.4 in)	50 of 100 (Notable)
Jalgaon	India	Record daily precipitation	96.0 mm (3.8 in)	46 of 100 (Notable)
Richmond C/K (Tnk)	South Africa	Record daily precipitation	26.4 mm (1.0 in)	44 of 100 (Notable)
Rogersville 1 NE	United States	Record daily precipitation	49.5 mm (1.9 in)	43 of 100 (Notable)
Lexington	United States	Record daily precipitation	92.2 mm (3.6 in)	42 of 100 (Notable)
Klipfontein	South Africa	Record daily precipitation	26.7 mm (1.1 in)	39 of 100 (Notable)
Forman 5 SSE	United States	Record daily precipitation	81.0 mm (3.2 in)	37 of 100 (Notable)
Albia 3 NNE	United States	Record daily precipitation	56.4 mm (2.2 in)	36 of 100 (Notable)
Langdon Exp Farm	United States	Record daily precipitation	30.0 mm (1.2 in)	36 of 100 (Notable)
Hajipur	India	Record daily precipitation	158.8 mm (6.3 in)	35 of 100 (Notable)
Nandura	India	Record daily precipitation	78.7 mm (3.1 in)	35 of 100 (Notable)
Gunnedah Pool	Australia	Record high maximum temperature	26.7 C (80.1 F)	34 of 100 (Routine)
Rajahmundry	India	Record daily precipitation	76.7 mm (3.0 in)	34 of 100 (Routine)
Kotputli	India	Record daily precipitation	90.9 mm (3.6 in)	34 of 100 (Routine)
Crescent City 3 NNW	United States	Record high minimum temperature	16.7 C (62.1 F)	34 of 100 (Routine)
Creston 2 SW	United States	Record daily precipitation	40.4 mm (1.6 in)	33 of 100 (Routine)
Medha	India	Record daily precipitation	144.8 mm (5.7 in)	32 of 100 (Routine)
Malpura	India	Record daily precipitation	116.8 mm (4.6 in)	32 of 100 (Routine)
Bilari	India	Record daily precipitation	107.4 mm (4.2 in)	32 of 100 (Routine)
Crawley	South Africa	Record daily precipitation	31.8 mm (1.3 in)	32 of 100 (Routine)
Khamgaon	India	Record daily precipitation	97.0 mm (3.8 in)	30 of 100 (Routine)
Sirmuthra	India	Record daily precipitation	65.3 mm (2.6 in)	30 of 100 (Routine)
Jeoli Jansath	India	Record daily precipitation	85.6 mm (3.4 in)	30 of 100 (Routine)
Chindwara	India	Record daily precipitation	76.5 mm (3.0 in)	29 of 100 (Routine)
Srimadhopur	India	Record daily precipitation	64.8 mm (2.6 in)	29 of 100 (Routine)
Sambhal	India	Record daily precipitation	86.9 mm (3.4 in)	29 of 100 (Routine)
Afton	United States	Record daily precipitation	52.6 mm (2.1 in)	29 of 100 (Routine)
New Orleans Audubon	United States	Record daily precipitation	58.4 mm (2.3 in)	29 of 100 (Routine)
Gavle	Sweden	Record low minimum temperature	2.5 C (36.5 F)	28 of 100 (Routine)
Radford	United States	Record daily precipitation	38.9 mm (1.5 in)	28 of 100 (Routine)
Jasol	India	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Nawa	India	Record daily precipitation	57.2 mm (2.3 in)	27 of 100 (Routine)
Mawana	India	Record daily precipitation	96.5 mm (3.8 in)	27 of 100 (Routine)
Seymour (Mag)	South Africa	Record daily precipitation	29.0 mm (1.1 in)	27 of 100 (Routine)
Lake Arthur 7 SW	United States	Record high minimum temperature	27.8 C (82.0 F)	26 of 100 (Routine)
Lebanon 2W	United States	Record daily precipitation	33.5 mm (1.3 in)	26 of 100 (Routine)
Barpukhuri	India	Record daily precipitation	68.8 mm (2.7 in)	25 of 100 (Routine)
Cambridge Water Trmt P	United States	Record high minimum temperature	26.1 C (79.0 F)	25 of 100 (Routine)
Pearlington	United States	Record daily precipitation	66.0 mm (2.6 in)	25 of 100 (Routine)
Beaufort	United States	Record high maximum temperature	34.4 C (93.9 F)	25 of 100 (Routine)
Karanjia	India	Record daily precipitation	82.8 mm (3.3 in)	24 of 100 (Routine)
Jefferson	United States	Record daily precipitation	59.4 mm (2.3 in)	24 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record low minimum temperature	7.5 C (45.5 F)	23 of 100 (Routine)
Bee Branch	United States	Record high minimum temperature	26.7 C (80.1 F)	23 of 100 (Routine)
Concordia ASOS	United States	Record high minimum temperature	26.7 C (80.1 F)	23 of 100 (Routine)
Murtajapur	India	Record daily precipitation	82.6 mm (3.3 in)	22 of 100 (Routine)
Bisauli	India	Record daily precipitation	100.1 mm (3.9 in)	22 of 100 (Routine)
Wentworth 2.5 WNW	United States	Record high minimum temperature	21.1 C (70.0 F)	22 of 100 (Routine)
Ajmer	India	Record daily precipitation	40.6 mm (1.6 in)	21 of 100 (Routine)
Arni	India	Record daily precipitation	37.3 mm (1.5 in)	21 of 100 (Routine)
Flandreau	United States	Record high minimum temperature	20.6 C (69.1 F)	21 of 100 (Routine)

Counts by Type and Timescale

415 records

Records set or tied on 31 July 1940 by type: Highest daily maximum 53, Lowest daily maximum 11, Highest daily minimum 113, Lowest daily minimum 27, Heaviest daily rainfall 211.

Records on 31 July 1940 by type
Record type	Records
Highest daily maximum	53
Lowest daily maximum	11
Highest daily minimum	113
Lowest daily minimum	27
Heaviest daily rainfall	211
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 1940 by timescale: all-time 0, monthly 10, daily 405.

How Much Records Were Beaten By

316 broken records

Margins by which the 316 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 93.2. Ties are not counted.

Top 20 by Significance

31 July 1940

Top 20 records on 31 July 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1940	Pearston (Pol), ZA	daily rain	35.8 mm (1.4 in)	33.0 mm (1.3 in)	41 years	57 of 100 (Notable)
31 July 1940	Kaanapali AP 453.1, US	monthly rain	84.3 mm (3.3 in)	48.2 mm (1.9 in)	16 years	57 of 100 (Notable)
31 July 1940	Walsingham 1, ZA	daily rain	42.9 mm (1.7 in)	37.3 mm (1.5 in)	41 years	54 of 100 (Notable)
31 July 1940	Pisangan, IN	daily rain	118.6 mm (4.7 in)	93.2 mm (3.7 in)	32 years	53 of 100 (Notable)
31 July 1940	Borzja, RU	daily rain	44.7 mm (1.8 in)	35.5 mm (1.4 in)	33 years	53 of 100 (Notable)
31 July 1940	Aberdeen Rd (Sar), ZA	daily rain	27.9 mm (1.1 in)	27.9 mm (1.1 in)	54 years	53 of 100 (Notable)
31 July 1940	Cookhouse (Sar), ZA	daily rain	28.7 mm (1.1 in)	25.7 mm (1.0 in)	30 years	52 of 100 (Notable)
31 July 1940	Cheviot Fells, ZA	daily rain	25.9 mm (1.0 in)	22.1 mm (0.9 in)	37 years	52 of 100 (Notable)
31 July 1940	Somerset East, ZA	daily rain	38.9 mm (1.5 in)	31.3 mm (1.2 in)	30 years	51 of 100 (Notable)
31 July 1940	Middelwater, ZA	daily rain	34.3 mm (1.4 in)	30.5 mm (1.2 in)	30 years	50 of 100 (Notable)
31 July 1940	Jalgaon, IN	daily rain	96.0 mm (3.8 in)	53.3 mm (2.1 in)	31 years	46 of 100 (Notable)
31 July 1940	Richmond C/K (Tnk), ZA	daily rain	26.4 mm (1.0 in)	14.5 mm (0.6 in)	60 years	44 of 100 (Notable)
31 July 1940	Rogersville 1 NE, US	daily rain	49.5 mm (1.9 in)	31.0 mm (1.2 in)	44 years	43 of 100 (Notable)
31 July 1940	Lexington, US	daily rain	92.2 mm (3.6 in)	47.7 mm (1.9 in)	10 years	42 of 100 (Notable)
31 July 1940	Klipfontein, ZA	daily rain	26.7 mm (1.1 in)	20.3 mm (0.8 in)	23 years	39 of 100 (Notable)
31 July 1940	Forman 5 SSE, US	monthly rain	81.0 mm (3.2 in)	14.7 mm (0.6 in)	37 years	37 of 100 (Notable)
31 July 1940	Albia 3 NNE, US	daily rain	56.4 mm (2.2 in)	34.8 mm (1.4 in)	25 years	36 of 100 (Notable)
31 July 1940	Langdon Exp Farm, US	daily rain	30.0 mm (1.2 in)	21.6 mm (0.9 in)	36 years	36 of 100 (Notable)
31 July 1940	Hajipur, IN	monthly rain	158.8 mm (6.3 in)	23.2 mm (0.9 in)	36 years	35 of 100 (Notable)
31 July 1940	Nandura, IN	daily rain	78.7 mm (3.1 in)	44.7 mm (1.8 in)	25 years	35 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

1804 to 1940

Records set or tied on this calendar date in each year from 1804 to 1940. 1940 had 415 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 1940-07-31: 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	266
20 to 40	36
40 to 60	12
60 to 80	1
80 to 100	1