Weather Records on 31 July 1921

112 weather records were set or tied worldwide on 31 July 1921. Highest significance: Narre Warren North (Narre Warr, AU.

Key Facts for 31 July 1921

On 31 July 1921, 112 weather records were set or tied at long-record stations worldwide.
15 were record highs and 13 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 111 daily.
Narre Warren North (Narre Warr set a daily record precipitation of 29.0 mm (1.1 in) on 31 July 1921.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 473 records.

Record Map

112 stations

112 station records on 31 July 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Narre Warren North (Narre Warr	Australia	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Pointe Au Pere	Canada	Record high maximum temperature	28.9 C (84.0 F)	26 of 100 (Routine)
Yellowin	Australia	Record daily precipitation	40.6 mm (1.6 in)	25 of 100 (Routine)
Uman	Ukraine	Record high minimum temperature	21.2 C (70.2 F)	22 of 100 (Routine)
Gainesville UNIV of Fl	United States	Record daily precipitation	48.3 mm (1.9 in)	21 of 100 (Routine)
Coranderrk Badger Weir	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Yarram	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Mintaro	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Warooka	Australia	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Cooke Plains	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Hoyleton	Australia	Record daily precipitation	11.9 mm (0.5 in)	20 of 100 (Routine)
Jamestown	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Clare Post Office	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Meningie	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Port Victoria	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Georgetown	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Maitland (Woodburlie)	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Auburn	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Whyte Yarcowie	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Woodside	Australia	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Mornington	Australia	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Koolunga	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Marrabel	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Blyth	Australia	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Port Pirie Nyrstar Comparison	Australia	Record daily precipitation	9.1 mm (0.36 in)	20 of 100 (Routine)
Foster (Post Office)	Australia	Record daily precipitation	32.5 mm (1.3 in)	20 of 100 (Routine)
Hawkesdale (Post Office)	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Sydney	Canada	Record low maximum temperature	14.4 C (57.9 F)	20 of 100 (Routine)
Balaklava	Australia	Record daily precipitation	9.1 mm (0.36 in)	19 of 100 (Routine)
Wallaroo	Australia	Record daily precipitation	13.2 mm (0.5 in)	19 of 100 (Routine)
Bathurst Gaol	Australia	Record low maximum temperature	5.6 C (42.1 F)	19 of 100 (Routine)
Sfax El-Maou	Tunisia	Record high maximum temperature	40.0 C (104.0 F)	19 of 100 (Routine)
Hallett (Old Canowie)	Australia	Record daily precipitation	17.8 mm (0.7 in)	18 of 100 (Routine)
Corny Point	Australia	Record daily precipitation	11.7 mm (0.5 in)	18 of 100 (Routine)
Tarlee	Australia	Record daily precipitation	7.6 mm (0.30 in)	18 of 100 (Routine)
Fairlight Station	Australia	Record daily precipitation	38.1 mm (1.5 in)	18 of 100 (Routine)
Swan Hill (Murray Downs)	Australia	Record daily precipitation	4.8 mm (0.19 in)	18 of 100 (Routine)
Burra (Kooringa)	Australia	Record daily precipitation	16.3 mm (0.6 in)	17 of 100 (Routine)
Clare (Hill River)	Australia	Record daily precipitation	17.3 mm (0.7 in)	17 of 100 (Routine)
Watervale	Australia	Record daily precipitation	14.0 mm (0.6 in)	17 of 100 (Routine)
Minlaton	Australia	Record daily precipitation	9.1 mm (0.36 in)	17 of 100 (Routine)
Port Albert	Australia	Record daily precipitation	17.8 mm (0.7 in)	17 of 100 (Routine)
Wandin (Yallock)	Australia	Record daily precipitation	24.9 mm (1.0 in)	17 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	9.4 C (48.9 F)	17 of 100 (Routine)
Maitland	Australia	Record daily precipitation	15.0 mm (0.6 in)	16 of 100 (Routine)
Wantiool (Caithness)	Australia	Record daily precipitation	21.1 mm (0.8 in)	16 of 100 (Routine)
Ballarat Botanical Gardens	Australia	Record daily precipitation	12.7 mm (0.5 in)	16 of 100 (Routine)
White River	Canada	Record low maximum temperature	13.3 C (55.9 F)	16 of 100 (Routine)
Wirrabara	Australia	Record daily precipitation	15.7 mm (0.6 in)	15 of 100 (Routine)
Gladstone	Australia	Record daily precipitation	8.1 mm (0.32 in)	15 of 100 (Routine)
Paskeville	Australia	Record daily precipitation	9.4 mm (0.37 in)	15 of 100 (Routine)
Ashbourne	Australia	Record daily precipitation	27.9 mm (1.1 in)	15 of 100 (Routine)
Rosedale	Australia	Record daily precipitation	15.2 mm (0.6 in)	15 of 100 (Routine)
Lilydale	Australia	Record daily precipitation	12.7 mm (0.5 in)	15 of 100 (Routine)
Sable Island East End	Canada	Record daily precipitation	38.1 mm (1.5 in)	15 of 100 (Routine)
Narridy Post Office	Australia	Record daily precipitation	7.6 mm (0.30 in)	14 of 100 (Routine)
Ardrossan	Australia	Record daily precipitation	13.7 mm (0.5 in)	14 of 100 (Routine)
Ardrossan (Winulta)	Australia	Record daily precipitation	12.4 mm (0.5 in)	14 of 100 (Routine)
Yorketown	Australia	Record daily precipitation	10.2 mm (0.4 in)	14 of 100 (Routine)
Riverton	Australia	Record daily precipitation	10.2 mm (0.4 in)	14 of 100 (Routine)

Counts by Type and Timescale

112 records

Records set or tied on 31 July 1921 by type: Highest daily maximum 7, Lowest daily maximum 7, Highest daily minimum 8, Lowest daily minimum 6, Heaviest daily rainfall 84.

Records on 31 July 1921 by type
Record type	Records
Highest daily maximum	7
Lowest daily maximum	7
Highest daily minimum	8
Lowest daily minimum	6
Heaviest daily rainfall	84
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 1921 by timescale: all-time 0, monthly 1, daily 111.

How Much Records Were Beaten By

101 broken records

Margins by which the 101 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 17.6. Ties are not counted.

Top 20 by Significance

31 July 1921

Top 20 records on 31 July 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1921	Narre Warren North (Narre Warr, AU	daily rain	29.0 mm (1.1 in)	14.8 mm (0.6 in)	33 years	41 of 100 (Notable)
31 July 1921	Pointe Au Pere, CA	daily high max	28.9 C (84.0 F)	3.9 C (7.0 F)	36 years	26 of 100 (Routine)
31 July 1921	Yellowin, AU	daily rain	40.6 mm (1.6 in)	14.2 mm (0.6 in)	30 years	25 of 100 (Routine)
31 July 1921	Uman, UA	monthly high min	21.2 C (70.2 F)	0.7 C (1.3 F)	25 years	22 of 100 (Routine)
31 July 1921	Gainesville UNIV of Fl, US	daily rain	48.3 mm (1.9 in)	17.6 mm (0.7 in)	20 years	21 of 100 (Routine)
31 July 1921	Coranderrk Badger Weir, AU	daily rain	24.6 mm (1.0 in)	15.2 mm (0.6 in)	20 years	20 of 100 (Routine)
31 July 1921	Yarram, AU	daily rain	22.4 mm (0.9 in)	11.0 mm (0.4 in)	30 years	20 of 100 (Routine)
31 July 1921	Mintaro, AU	daily rain	18.5 mm (0.7 in)	12.9 mm (0.5 in)	18 years	20 of 100 (Routine)
31 July 1921	Warooka, AU	daily rain	15.0 mm (0.6 in)	7.4 mm (0.29 in)	26 years	20 of 100 (Routine)
31 July 1921	Cooke Plains, AU	daily rain	20.8 mm (0.8 in)	6.8 mm (0.27 in)	26 years	20 of 100 (Routine)
31 July 1921	Hoyleton, AU	daily rain	11.9 mm (0.5 in)	5.5 mm (0.22 in)	33 years	20 of 100 (Routine)
31 July 1921	Jamestown, AU	daily rain	14.7 mm (0.6 in)	7.6 mm (0.30 in)	34 years	20 of 100 (Routine)
31 July 1921	Clare Post Office, AU	daily rain	18.5 mm (0.7 in)	7.1 mm (0.28 in)	33 years	20 of 100 (Routine)
31 July 1921	Meningie, AU	daily rain	14.0 mm (0.6 in)	5.6 mm (0.22 in)	30 years	20 of 100 (Routine)
31 July 1921	Port Victoria, AU	daily rain	17.3 mm (0.7 in)	9.7 mm (0.38 in)	2 years	20 of 100 (Routine)
31 July 1921	Georgetown, AU	daily rain	14.7 mm (0.6 in)	7.1 mm (0.28 in)	26 years	20 of 100 (Routine)
31 July 1921	Maitland (Woodburlie), AU	daily rain	17.8 mm (0.7 in)	5.9 mm (0.23 in)	26 years	20 of 100 (Routine)
31 July 1921	Auburn, AU	daily rain	19.1 mm (0.8 in)	5.4 mm (0.21 in)	30 years	20 of 100 (Routine)
31 July 1921	Whyte Yarcowie, AU	daily rain	15.7 mm (0.6 in)	5.0 mm (0.20 in)	26 years	20 of 100 (Routine)
31 July 1921	Woodside, AU	daily rain	15.0 mm (0.6 in)	9.2 mm (0.36 in)	4 years	20 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 1921

Records set or tied on this calendar date in each year from 1804 to 1921. 1921 had 112 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 1921-07-31: 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 3	48
3 to 5	26
5 to 8	15
8 to 10	4
10 to 13	2
13 to 15	4
15 to 18	1
18 to 20	1