Weather Records on 31 July 1937

297 weather records were set or tied worldwide on 31 July 1937. Highest significance: Morden, CA.

Key Facts for 31 July 1937

On 31 July 1937, 297 weather records were set or tied at long-record stations worldwide.
67 were record highs and 119 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 9 monthly and 287 daily.
Morden set a daily record precipitation of 64.0 mm (2.5 in) on 31 July 1937.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 472 records.

Record Map

297 stations

297 station records on 31 July 1937 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 1937: highest significance records shown on the map
Station	Country	Type	Value	Significance
Morden	Canada	Record daily precipitation	64.0 mm (2.5 in)	52 of 100 (Notable)
Bhavnathpur	India	Record daily precipitation	208.3 mm (8.2 in)	51 of 100 (Notable)
Bordeaux-Merignac	France	Record daily precipitation	36.4 mm (1.4 in)	49 of 100 (Notable)
Ageon	India	Record daily precipitation	183.9 mm (7.2 in)	48 of 100 (Notable)
Mtn View 91	United States	Record daily precipitation	158.0 mm (6.2 in)	48 of 100 (Notable)
Beaufort	United States	Record daily precipitation	149.9 mm (5.9 in)	46 of 100 (Notable)
Little Sioux	United States	Record daily precipitation	81.3 mm (3.2 in)	44 of 100 (Notable)
Ramnagar	India	Record daily precipitation	134.6 mm (5.3 in)	42 of 100 (Notable)
Montreal McGill	Canada	Record daily precipitation	50.5 mm (2.0 in)	40 of 100 (Notable)
Ambari	India	Record daily precipitation	158.8 mm (6.3 in)	40 of 100 (Notable)
Honokaa Mauka	United States	Record daily precipitation	71.4 mm (2.8 in)	40 of 100 (Notable)
Robertsganj	India	Record daily precipitation	269.7 mm (10.6 in)	39 of 100 (Notable)
Arrah Obsy Sr	India	Record daily precipitation	146.1 mm (5.8 in)	38 of 100 (Notable)
Tizi Ouzou	Algeria	Record high minimum temperature	30.0 C (86.0 F)	34 of 100 (Routine)
Manatu	India	Record daily precipitation	129.5 mm (5.1 in)	34 of 100 (Routine)
Joseph	United States	Record low maximum temperature	11.7 C (53.1 F)	34 of 100 (Routine)
Rajpur	India	Record daily precipitation	235.0 mm (9.3 in)	31 of 100 (Routine)
Kualapuu 534	United States	Record low maximum temperature	23.3 C (73.9 F)	31 of 100 (Routine)
Snoqualmie Falls	United States	Record daily precipitation	27.9 mm (1.1 in)	30 of 100 (Routine)
Bassawan	India	Record daily precipitation	121.9 mm (4.8 in)	29 of 100 (Routine)
Ghazipur	India	Record daily precipitation	122.2 mm (4.8 in)	29 of 100 (Routine)
Honokane 181.1	United States	Record daily precipitation	94.0 mm (3.7 in)	29 of 100 (Routine)
Tunis	Tunisia	Record high minimum temperature	27.0 C (80.6 F)	28 of 100 (Routine)
Galway	Ireland	Record high minimum temperature	16.7 C (62.1 F)	27 of 100 (Routine)
Redding Fire STN 2	United States	Record low maximum temperature	27.2 C (81.0 F)	27 of 100 (Routine)
Constantine	Algeria	Record high minimum temperature	27.0 C (80.6 F)	26 of 100 (Routine)
Yonna	United States	Record low maximum temperature	18.3 C (64.9 F)	26 of 100 (Routine)
Pahala 21	United States	Record daily precipitation	88.1 mm (3.5 in)	26 of 100 (Routine)
Chattarpur	India	Record daily precipitation	119.4 mm (4.7 in)	25 of 100 (Routine)
Milan	Italy	Record daily precipitation	26.5 mm (1.0 in)	25 of 100 (Routine)
Armagh	United Kingdom	Record high maximum temperature	25.6 C (78.1 F)	25 of 100 (Routine)
Honohina 137	United States	Record daily precipitation	61.0 mm (2.4 in)	25 of 100 (Routine)
Waimanalo 794	United States	Record low maximum temperature	25.6 C (78.1 F)	25 of 100 (Routine)
Kaiserganj	India	Record daily precipitation	79.8 mm (3.1 in)	24 of 100 (Routine)
Talladega	United States	Record daily precipitation	32.8 mm (1.3 in)	24 of 100 (Routine)
Bluff City	United States	Record daily precipitation	36.8 mm (1.4 in)	24 of 100 (Routine)
Aurangabad	India	Record daily precipitation	167.9 mm (6.6 in)	23 of 100 (Routine)
Bizerte Cap Blanc	Tunisia	Record high maximum temperature	37.0 C (98.6 F)	23 of 100 (Routine)
Arkadelphia 2 N	United States	Record daily precipitation	47.0 mm (1.9 in)	23 of 100 (Routine)
Priest Rvr Exp STN	United States	Record low maximum temperature	18.9 C (66.0 F)	23 of 100 (Routine)
Laurel 3 W	United States	Record daily precipitation	57.7 mm (2.3 in)	23 of 100 (Routine)
Ellensburg	United States	Record low maximum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Anticosti SW Point	Canada	Record high minimum temperature	17.2 C (63.0 F)	22 of 100 (Routine)
Margherita	India	Record daily precipitation	106.9 mm (4.2 in)	22 of 100 (Routine)
Sanehighat	India	Record daily precipitation	176.5 mm (6.9 in)	22 of 100 (Routine)
Syktyvkar	Russia	Record daily precipitation	34.1 mm (1.3 in)	22 of 100 (Routine)
Quincy	United States	Record low maximum temperature	24.4 C (75.9 F)	22 of 100 (Routine)
Nashua 2 NNW	United States	Record daily precipitation	36.8 mm (1.4 in)	22 of 100 (Routine)
Kennewick	United States	Record low maximum temperature	21.7 C (71.1 F)	22 of 100 (Routine)
Nawadah	India	Record daily precipitation	62.7 mm (2.5 in)	21 of 100 (Routine)
Akbarpur	India	Record daily precipitation	159.8 mm (6.3 in)	21 of 100 (Routine)
Karesuando	Sweden	Record high minimum temperature	13.0 C (55.4 F)	21 of 100 (Routine)
Paauilo 221	United States	Record daily precipitation	101.6 mm (4.0 in)	21 of 100 (Routine)
Spokane Intl AP	United States	Record low maximum temperature	19.4 C (66.9 F)	21 of 100 (Routine)
Kualapuu 534	United States	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Mantova	Italy	Record daily precipitation	19.0 mm (0.7 in)	20 of 100 (Routine)
Shenkursk	Russia	Record daily precipitation	23.7 mm (0.9 in)	20 of 100 (Routine)
St. Petersburg	Russia	Record daily precipitation	13.4 mm (0.5 in)	20 of 100 (Routine)
Minnedosa	Canada	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
St Albans	Canada	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)

Counts by Type and Timescale

297 records

Records set or tied on 31 July 1937 by type: Highest daily maximum 16, Lowest daily maximum 88, Highest daily minimum 51, Lowest daily minimum 31, Heaviest daily rainfall 111.

Records on 31 July 1937 by type
Record type	Records
Highest daily maximum	16
Lowest daily maximum	88
Highest daily minimum	51
Lowest daily minimum	31
Heaviest daily rainfall	111
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 1937 by timescale: all-time 1, monthly 9, daily 287.

How Much Records Were Beaten By

240 broken records

Margins by which the 240 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 101.3. Ties are not counted.

Top 20 by Significance

31 July 1937

Top 20 records on 31 July 1937 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1937	Morden, CA	daily rain	64.0 mm (2.5 in)	49.8 mm (2.0 in)	28 years	52 of 100 (Notable)
31 July 1937	Bhavnathpur, IN	monthly rain	208.3 mm (8.2 in)	66.1 mm (2.6 in)	31 years	51 of 100 (Notable)
31 July 1937	Bordeaux-Merignac, FR	daily rain	36.4 mm (1.4 in)	22.4 mm (0.9 in)	36 years	49 of 100 (Notable)
31 July 1937	Ageon, IN	daily rain	183.9 mm (7.2 in)	101.3 mm (4.0 in)	20 years	48 of 100 (Notable)
31 July 1937	Mtn View 91, US	daily rain	158.0 mm (6.2 in)	80.5 mm (3.2 in)	23 years	48 of 100 (Notable)
31 July 1937	Beaufort, US	daily rain	149.9 mm (5.9 in)	60.7 mm (2.4 in)	28 years	46 of 100 (Notable)
31 July 1937	Little Sioux, US	daily rain	81.3 mm (3.2 in)	57.9 mm (2.3 in)	4 years	44 of 100 (Notable)
31 July 1937	Ramnagar, IN	daily rain	134.6 mm (5.3 in)	85.8 mm (3.4 in)	28 years	42 of 100 (Notable)
31 July 1937	Montreal McGill, CA	daily rain	50.5 mm (2.0 in)	25.6 mm (1.0 in)	32 years	40 of 100 (Notable)
31 July 1937	Ambari, IN	daily rain	158.8 mm (6.3 in)	97.8 mm (3.9 in)	36 years	40 of 100 (Notable)
31 July 1937	Honokaa Mauka, US	daily rain	71.4 mm (2.8 in)	48.0 mm (1.9 in)	23 years	40 of 100 (Notable)
31 July 1937	Robertsganj, IN	all-time rain	269.7 mm (10.6 in)	36.8 mm (1.4 in)	0 years	39 of 100 (Notable)
31 July 1937	Arrah Obsy Sr, IN	daily rain	146.1 mm (5.8 in)	75.2 mm (3.0 in)	11 years	38 of 100 (Notable)
31 July 1937	Tizi Ouzou, DZ	monthly high min	30.0 C (86.0 F)	1.0 C (1.8 F)	50 years	34 of 100 (Routine)
31 July 1937	Manatu, IN	daily rain	129.5 mm (5.1 in)	66.0 mm (2.6 in)	16 years	34 of 100 (Routine)
31 July 1937	Joseph, US	daily low max	11.7 C (53.1 F)	9.4 C (16.9 F)	39 years	34 of 100 (Routine)
31 July 1937	Rajpur, IN	daily rain	235.0 mm (9.3 in)	82.6 mm (3.3 in)	36 years	31 of 100 (Routine)
31 July 1937	Kualapuu 534, US	daily low max	23.3 C (73.9 F)	3.4 C (6.1 F)	20 years	31 of 100 (Routine)
31 July 1937	Snoqualmie Falls, US	daily rain	27.9 mm (1.1 in)	18.0 mm (0.7 in)	2 years	30 of 100 (Routine)
31 July 1937	Bassawan, IN	daily rain	121.9 mm (4.8 in)	47.0 mm (1.9 in)	18 years	29 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 1937

Records set or tied on this calendar date in each year from 1804 to 1937. 1937 had 297 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 1937-07-31: 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	206
20 to 40	19
40 to 60	6
60 to 80	4
80 to 100	4
100 to 120	1