Weather Records on 20 July 1931

362 weather records were set or tied worldwide on 20 July 1931. Highest significance: Peterborough, CA.

Key Facts for 20 July 1931

On 20 July 1931, 362 weather records were set or tied at long-record stations worldwide.
169 were record highs and 16 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 4 monthly and 354 daily.
Peterborough set a daily record precipitation of 50.3 mm (2.0 in) on 20 July 1931.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 460 records.

Record Map

362 stations

362 station records on 20 July 1931 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1931: highest significance records shown on the map
Station	Country	Type	Value	Significance
Peterborough	Canada	Record daily precipitation	50.3 mm (2.0 in)	61 of 100 (Major)
Den Helder-1	Netherlands	Record daily precipitation	39.8 mm (1.6 in)	59 of 100 (Notable)
Jacksonville 2E	United States	Record daily precipitation	67.3 mm (2.6 in)	52 of 100 (Notable)
Columbus	United States	Record daily precipitation	113.5 mm (4.5 in)	51 of 100 (Notable)
Sheboygan	United States	Record daily precipitation	64.5 mm (2.5 in)	47 of 100 (Notable)
Winnemucca AP	United States	Record high maximum temperature	42.2 C (108.0 F)	47 of 100 (Notable)
Pawhuska	United States	Record daily precipitation	155.4 mm (6.1 in)	45 of 100 (Notable)
White Cliffs (Bootra)	Australia	Record daily precipitation	31.2 mm (1.2 in)	44 of 100 (Notable)
Tibooburra Post Office	Australia	Record daily precipitation	51.8 mm (2.0 in)	44 of 100 (Notable)
Springfield Abraham Lincoln Ca	United States	Record daily precipitation	46.7 mm (1.8 in)	44 of 100 (Notable)
North Lake	United States	Record daily precipitation	41.7 mm (1.6 in)	40 of 100 (Notable)
Watertown	United States	Record daily precipitation	32.8 mm (1.3 in)	37 of 100 (Notable)
Karambakkudi	India	Record daily precipitation	45.7 mm (1.8 in)	36 of 100 (Notable)
Fairmont	United States	Record daily precipitation	55.9 mm (2.2 in)	34 of 100 (Routine)
Barharwa	India	Record daily precipitation	156.2 mm (6.1 in)	32 of 100 (Routine)
Minonk	United States	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Carlisle	United States	Record daily precipitation	53.8 mm (2.1 in)	32 of 100 (Routine)
White Cliffs (Yancannia)	Australia	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Gragin	Australia	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Monticello	United States	Record daily precipitation	53.1 mm (2.1 in)	31 of 100 (Routine)
Havana	United States	Record daily precipitation	55.9 mm (2.2 in)	30 of 100 (Routine)
Elmira	United States	Record daily precipitation	35.6 mm (1.4 in)	30 of 100 (Routine)
San Diego Wbo	United States	Record high minimum temperature	21.1 C (70.0 F)	29 of 100 (Routine)
Paris	Canada	Record high minimum temperature	25.0 C (77.0 F)	27 of 100 (Routine)
Bloomington Normal	United States	Record daily precipitation	36.1 mm (1.4 in)	27 of 100 (Routine)
Griggsville	United States	Record daily precipitation	37.1 mm (1.5 in)	27 of 100 (Routine)
Raquette Lake	United States	Record daily precipitation	64.8 mm (2.6 in)	27 of 100 (Routine)
Lakefield	Canada	Record daily precipitation	50.0 mm (2.0 in)	26 of 100 (Routine)
Pocahontas 1	United States	Record daily precipitation	66.0 mm (2.6 in)	26 of 100 (Routine)
Olathe 3E	United States	Record daily precipitation	31.8 mm (1.3 in)	25 of 100 (Routine)
S Haven	United States	Record daily precipitation	34.5 mm (1.4 in)	25 of 100 (Routine)
Garden City	United States	Record daily precipitation	46.7 mm (1.8 in)	24 of 100 (Routine)
Gorin	United States	Record daily precipitation	44.5 mm (1.8 in)	24 of 100 (Routine)
Nevada Wtp	United States	Record daily precipitation	58.9 mm (2.3 in)	24 of 100 (Routine)
Anklam	Germany	Record daily precipitation	28.8 mm (1.1 in)	23 of 100 (Routine)
Waverly	United States	Record daily precipitation	35.1 mm (1.4 in)	23 of 100 (Routine)
Jefferson 3SE	United States	Record daily precipitation	36.8 mm (1.4 in)	23 of 100 (Routine)
Sheohar	India	Record daily precipitation	79.0 mm (3.1 in)	22 of 100 (Routine)
Lake City 2 E	United States	Record daily precipitation	50.8 mm (2.0 in)	22 of 100 (Routine)
Waukomis	United States	Record daily precipitation	47.5 mm (1.9 in)	22 of 100 (Routine)
Lakeview 2 NNW	United States	Record high maximum temperature	41.1 C (106.0 F)	22 of 100 (Routine)
Szombathely	Hungary	Record daily precipitation	35.5 mm (1.4 in)	21 of 100 (Routine)
Araria	India	Record daily precipitation	127.0 mm (5.0 in)	21 of 100 (Routine)
Netley	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Silistria	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Mulculca	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Gnalta	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Broken Hill (Topar)	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Wicannia (the Peak Tank)	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Tolarno	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Forest Vale	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Milparinka Hotel	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
White Cliffs (Tongo)	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Lowestoft	United Kingdom	Record daily precipitation	22.8 mm (0.9 in)	20 of 100 (Routine)
Bindara (Netley)	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Silverton Post Office	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Silverton (Mundi Mundi)	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Broken Hill (Patton Street)	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Broken Hill (Kars)	Australia	Record daily precipitation	9.1 mm (0.36 in)	20 of 100 (Routine)
Bimerah	Australia	Record daily precipitation	6.4 mm (0.25 in)	20 of 100 (Routine)

Counts by Type and Timescale

362 records

Records set or tied on 20 July 1931 by type: Highest daily maximum 60, Lowest daily maximum 12, Highest daily minimum 109, Lowest daily minimum 4, Heaviest daily rainfall 177.

Records on 20 July 1931 by type
Record type	Records
Highest daily maximum	60
Lowest daily maximum	12
Highest daily minimum	109
Lowest daily minimum	4
Heaviest daily rainfall	177
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1931 by timescale: all-time 4, monthly 4, daily 354.

How Much Records Were Beaten By

287 broken records

Margins by which the 287 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 79.0. Ties are not counted.

Top 20 by Significance

20 July 1931

Top 20 records on 20 July 1931 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1931	Peterborough, CA	daily rain	50.3 mm (2.0 in)	36.3 mm (1.4 in)	60 years	61 of 100 (Major)
20 July 1931	Den Helder-1, NL	daily rain	39.8 mm (1.6 in)	20.2 mm (0.8 in)	65 years	59 of 100 (Notable)
20 July 1931	Jacksonville 2E, US	daily rain	67.3 mm (2.6 in)	60.2 mm (2.4 in)	30 years	52 of 100 (Notable)
20 July 1931	Columbus, US	daily rain	113.5 mm (4.5 in)	79.0 mm (3.1 in)	24 years	51 of 100 (Notable)
20 July 1931	Sheboygan, US	daily rain	64.5 mm (2.5 in)	38.3 mm (1.5 in)	18 years	47 of 100 (Notable)
20 July 1931	Winnemucca AP, US	all-time high max	42.2 C (108.0 F)	2.2 C (4.0 F)	53 years	47 of 100 (Notable)
20 July 1931	Pawhuska, US	monthly rain	155.4 mm (6.1 in)	46.9 mm (1.8 in)	32 years	45 of 100 (Notable)
20 July 1931	White Cliffs (Bootra), AU	daily rain	31.2 mm (1.2 in)	24.3 mm (1.0 in)	2 years	44 of 100 (Notable)
20 July 1931	Tibooburra Post Office, AU	daily rain	51.8 mm (2.0 in)	50.3 mm (2.0 in)	2 years	44 of 100 (Notable)
20 July 1931	Springfield Abraham Lincoln Ca, US	daily rain	46.7 mm (1.8 in)	44.2 mm (1.7 in)	22 years	44 of 100 (Notable)
20 July 1931	North Lake, US	daily rain	41.7 mm (1.6 in)	32.8 mm (1.3 in)	30 years	40 of 100 (Notable)
20 July 1931	Watertown, US	daily rain	32.8 mm (1.3 in)	26.2 mm (1.0 in)	28 years	37 of 100 (Notable)
20 July 1931	Karambakkudi, IN	daily rain	45.7 mm (1.8 in)	43.9 mm (1.7 in)	22 years	36 of 100 (Notable)
20 July 1931	Fairmont, US	daily rain	55.9 mm (2.2 in)	35.6 mm (1.4 in)	33 years	34 of 100 (Routine)
20 July 1931	Barharwa, IN	daily rain	156.2 mm (6.1 in)	67.3 mm (2.6 in)	9 years	32 of 100 (Routine)
20 July 1931	Minonk, US	daily rain	35.6 mm (1.4 in)	24.2 mm (1.0 in)	33 years	32 of 100 (Routine)
20 July 1931	Carlisle, US	daily rain	53.8 mm (2.1 in)	9.3 mm (0.37 in)	60 years	32 of 100 (Routine)
20 July 1931	White Cliffs (Yancannia), AU	daily rain	25.4 mm (1.0 in)	16.5 mm (0.6 in)	8 years	31 of 100 (Routine)
20 July 1931	Gragin, AU	daily rain	30.5 mm (1.2 in)	23.6 mm (0.9 in)	22 years	31 of 100 (Routine)
20 July 1931	Monticello, US	daily rain	53.1 mm (2.1 in)	27.7 mm (1.1 in)	25 years	31 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

1809 to 1931

Records set or tied on this calendar date in each year from 1809 to 1931. 1931 had 362 records.

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

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 1931-07-20: 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	211
10 to 20	39
20 to 30	22
30 to 40	5
40 to 50	6
50 to 60	1
60 to 70	2
70 to 80	1