Weather Records on 31 July 1920

168 weather records were set or tied worldwide on 31 July 1920. Highest significance: Tambo Post Office, AU.

Key Facts for 31 July 1920

On 31 July 1920, 168 weather records were set or tied at long-record stations worldwide.
6 were record highs and 6 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 165 daily.
Tambo Post Office set a daily record precipitation of 39.1 mm (1.5 in) on 31 July 1920.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 473 records.

Record Map

168 stations

168 station records on 31 July 1920 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 1920: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tambo Post Office	Australia	Record daily precipitation	39.1 mm (1.5 in)	45 of 100 (Notable)
Surat	Australia	Record daily precipitation	50.3 mm (2.0 in)	44 of 100 (Notable)
McKinlay Roadhouse	Australia	Record daily precipitation	29.2 mm (1.1 in)	38 of 100 (Notable)
Inverell Comparison	Australia	Record daily precipitation	46.2 mm (1.8 in)	38 of 100 (Notable)
Mitchell Post Office	Australia	Record daily precipitation	35.3 mm (1.4 in)	36 of 100 (Notable)
Yallaroi	Australia	Record daily precipitation	45.7 mm (1.8 in)	33 of 100 (Routine)
Glen Innes Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	33 of 100 (Routine)
Morven Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	32 of 100 (Routine)
Bannockburn	Australia	Record daily precipitation	33.0 mm (1.3 in)	32 of 100 (Routine)
Augathella Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Charleville Post Office	Australia	Record daily precipitation	31.2 mm (1.2 in)	30 of 100 (Routine)
Gragin	Australia	Record daily precipitation	34.8 mm (1.4 in)	30 of 100 (Routine)
Murringo (Windermere)	Australia	Record daily precipitation	40.4 mm (1.6 in)	30 of 100 (Routine)
Merrywinbone (Oreel)	Australia	Record daily precipitation	25.7 mm (1.0 in)	28 of 100 (Routine)
Aramac Post Office	Australia	Record daily precipitation	36.6 mm (1.4 in)	27 of 100 (Routine)
Yetman (Warialda Street)	Australia	Record daily precipitation	31.0 mm (1.2 in)	27 of 100 (Routine)
Guyra Post Office	Australia	Record daily precipitation	25.7 mm (1.0 in)	26 of 100 (Routine)
Parnu	Estonia	Record daily precipitation	32.2 mm (1.3 in)	26 of 100 (Routine)
Warialda Post Office	Australia	Record daily precipitation	32.3 mm (1.3 in)	24 of 100 (Routine)
Ooma	Australia	Record daily precipitation	40.4 mm (1.6 in)	24 of 100 (Routine)
Alpha Post Office	Australia	Record daily precipitation	34.3 mm (1.4 in)	23 of 100 (Routine)
Inglewood Post Office	Australia	Record daily precipitation	28.4 mm (1.1 in)	23 of 100 (Routine)
Tulloona (Coolanga)	Australia	Record daily precipitation	35.1 mm (1.4 in)	22 of 100 (Routine)
Stonehenge	Australia	Record daily precipitation	26.7 mm (1.1 in)	21 of 100 (Routine)
Majura 2	Australia	Record daily precipitation	28.2 mm (1.1 in)	21 of 100 (Routine)
St George Post Office	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Fort Bourke	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Mungindi Post Office	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Blackville Post Office	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Wallangarra Post Office	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Ulamambri Post Office	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Windorah Post Office	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Roma Post Office	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Premer Post Office	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Ellerslie 2	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Wantabadgery	Australia	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Woolerina	Australia	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Yandilla	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Mogil Mogil (Benimora)	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Mullaley (Bando)	Australia	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Berthong	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Isisford Post Office	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Winton Post Office	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Franklyn Vale	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Gamalally	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Condobolin (Borambil Park)	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Garah (Welbon)	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Abbotslea	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Cavan	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Maragle Station	Australia	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Bogantungan Post Office	Australia	Record daily precipitation	15.2 mm (0.6 in)	19 of 100 (Routine)
Langmorn	Australia	Record daily precipitation	34.5 mm (1.4 in)	19 of 100 (Routine)
Coonamble (Nardoo)	Australia	Record daily precipitation	23.1 mm (0.9 in)	19 of 100 (Routine)
Baradine Post Office	Australia	Record daily precipitation	27.9 mm (1.1 in)	19 of 100 (Routine)
Goorianawah	Australia	Record daily precipitation	26.4 mm (1.0 in)	19 of 100 (Routine)
Blackville (Welton Dale)	Australia	Record daily precipitation	23.4 mm (0.9 in)	19 of 100 (Routine)
Cootamundra Post Office	Australia	Record daily precipitation	17.8 mm (0.7 in)	19 of 100 (Routine)
Hillston (Cowl Cowl)	Australia	Record daily precipitation	13.7 mm (0.5 in)	19 of 100 (Routine)
Columbia Wb City	United States	Record daily precipitation	38.1 mm (1.5 in)	19 of 100 (Routine)
Herbert Vale	Australia	Record daily precipitation	7.9 mm (0.31 in)	18 of 100 (Routine)

Counts by Type and Timescale

168 records

Records set or tied on 31 July 1920 by type: Lowest daily maximum 4, Highest daily minimum 6, Lowest daily minimum 2, Heaviest daily rainfall 156.

Records on 31 July 1920 by type
Record type	Records
Highest daily maximum	0
Lowest daily maximum	4
Highest daily minimum	6
Lowest daily minimum	2
Heaviest daily rainfall	156
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 1920 by timescale: all-time 0, monthly 3, daily 165.

How Much Records Were Beaten By

159 broken records

Margins by which the 159 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 36.1. Ties are not counted.

Top 20 by Significance

31 July 1920

Top 20 records on 31 July 1920 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1920	Tambo Post Office, AU	daily rain	39.1 mm (1.5 in)	31.2 mm (1.2 in)	28 years	45 of 100 (Notable)
31 July 1920	Surat, AU	daily rain	50.3 mm (2.0 in)	36.1 mm (1.4 in)	27 years	44 of 100 (Notable)
31 July 1920	McKinlay Roadhouse, AU	daily rain	29.2 mm (1.1 in)	26.7 mm (1.1 in)	29 years	38 of 100 (Notable)
31 July 1920	Inverell Comparison, AU	daily rain	46.2 mm (1.8 in)	26.4 mm (1.0 in)	27 years	38 of 100 (Notable)
31 July 1920	Mitchell Post Office, AU	daily rain	35.3 mm (1.4 in)	26.9 mm (1.1 in)	20 years	36 of 100 (Notable)
31 July 1920	Yallaroi, AU	daily rain	45.7 mm (1.8 in)	32.2 mm (1.3 in)	3 years	33 of 100 (Routine)
31 July 1920	Glen Innes Post Office, AU	daily rain	29.2 mm (1.1 in)	22.1 mm (0.9 in)	14 years	33 of 100 (Routine)
31 July 1920	Morven Post Office, AU	daily rain	33.0 mm (1.3 in)	24.4 mm (1.0 in)	29 years	32 of 100 (Routine)
31 July 1920	Bannockburn, AU	daily rain	33.0 mm (1.3 in)	23.1 mm (0.9 in)	14 years	32 of 100 (Routine)
31 July 1920	Augathella Post Office, AU	daily rain	33.0 mm (1.3 in)	26.6 mm (1.0 in)	14 years	30 of 100 (Routine)
31 July 1920	Charleville Post Office, AU	daily rain	31.2 mm (1.2 in)	19.3 mm (0.8 in)	28 years	30 of 100 (Routine)
31 July 1920	Gragin, AU	daily rain	34.8 mm (1.4 in)	20.8 mm (0.8 in)	14 years	30 of 100 (Routine)
31 July 1920	Murringo (Windermere), AU	daily rain	40.4 mm (1.6 in)	15.0 mm (0.6 in)	25 years	30 of 100 (Routine)
31 July 1920	Merrywinbone (Oreel), AU	daily rain	25.7 mm (1.0 in)	16.0 mm (0.6 in)	29 years	28 of 100 (Routine)
31 July 1920	Aramac Post Office, AU	daily rain	36.6 mm (1.4 in)	20.9 mm (0.8 in)	29 years	27 of 100 (Routine)
31 July 1920	Yetman (Warialda Street), AU	daily rain	31.0 mm (1.2 in)	22.1 mm (0.9 in)	14 years	27 of 100 (Routine)
31 July 1920	Guyra Post Office, AU	daily rain	25.7 mm (1.0 in)	12.5 mm (0.5 in)	20 years	26 of 100 (Routine)
31 July 1920	Parnu, EE	daily rain	32.2 mm (1.3 in)	7.7 mm (0.30 in)	39 years	26 of 100 (Routine)
31 July 1920	Warialda Post Office, AU	daily rain	32.3 mm (1.3 in)	15.8 mm (0.6 in)	14 years	24 of 100 (Routine)
31 July 1920	Ooma, AU	monthly rain	40.4 mm (1.6 in)	4.8 mm (0.19 in)	16 years	24 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 1920

Records set or tied on this calendar date in each year from 1804 to 1920. 1920 had 168 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 1920-07-31: 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 5	71
5 to 10	33
10 to 15	24
15 to 20	14
20 to 25	8
25 to 30	6
30 to 35	2
35 to 40	1