Weather Records on 10 July 1921

81 weather records were set or tied worldwide on 10 July 1921. Highest significance: Guelph Oac, CA.

Key Facts for 10 July 1921

On 10 July 1921, 81 weather records were set or tied at long-record stations worldwide.
40 were record highs and 8 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 1 monthly and 78 daily.
Guelph Oac set an all-time record daily precipitation of 83.6 mm (3.3 in) on 10 July 1921.
Across 173 earlier years (1793 to 2026) the same calendar date averaged 414 records.

Record Map

81 stations

81 station records on 10 July 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 July 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Guelph Oac	Canada	Record daily precipitation	83.6 mm (3.3 in)	50 of 100 (Notable)
Armagh	United Kingdom	Record high maximum temperature	29.4 C (84.9 F)	46 of 100 (Notable)
Uccle	Belgium	Record high maximum temperature	34.5 C (94.1 F)	37 of 100 (Notable)
London South	Canada	Record daily precipitation	80.0 mm (3.1 in)	36 of 100 (Notable)
Watford	Canada	Record daily precipitation	101.6 mm (4.0 in)	30 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record high maximum temperature	27.2 C (81.0 F)	27 of 100 (Routine)
Lake Cochituate	United States	Record daily precipitation	48.5 mm (1.9 in)	27 of 100 (Routine)
Toronto	Canada	Record high minimum temperature	22.2 C (72.0 F)	25 of 100 (Routine)
Port Douglas - Warner St	Australia	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Mackay Post Office	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Wychitella South	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Tunis	Tunisia	Record daily precipitation	9.0 mm (0.35 in)	20 of 100 (Routine)
Oxford	United Kingdom	Record high maximum temperature	31.4 C (88.5 F)	20 of 100 (Routine)
Gardiner	United States	Record daily precipitation	43.7 mm (1.7 in)	20 of 100 (Routine)
Port Stanley	Canada	Record daily precipitation	18.0 mm (0.7 in)	19 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record daily precipitation	8.0 mm (0.31 in)	19 of 100 (Routine)
Somerville 4 NW	United States	Record high minimum temperature	24.4 C (75.9 F)	19 of 100 (Routine)
Bowen Post Office	Australia	Record daily precipitation	2.8 mm (0.11 in)	18 of 100 (Routine)
Charleville Post Office	Australia	Record high minimum temperature	14.4 C (57.9 F)	18 of 100 (Routine)
White River	Canada	Record high maximum temperature	33.3 C (91.9 F)	18 of 100 (Routine)
Altastenberg	Germany	Record high maximum temperature	28.8 C (83.8 F)	18 of 100 (Routine)
Bathurst Gaol	Australia	Record high minimum temperature	5.6 C (42.1 F)	17 of 100 (Routine)
Cornalla	Australia	Record daily precipitation	12.2 mm (0.5 in)	17 of 100 (Routine)
Lake Marmal	Australia	Record daily precipitation	8.6 mm (0.34 in)	17 of 100 (Routine)
Kirchdorf/Poel	Germany	Record high maximum temperature	29.5 C (85.1 F)	17 of 100 (Routine)
Stornoway Airport	United Kingdom	Record high minimum temperature	14.4 C (57.9 F)	17 of 100 (Routine)
Walgett Council Depot	Australia	Record high minimum temperature	11.1 C (52.0 F)	16 of 100 (Routine)
Olympia Priest Pt Park	United States	Record low minimum temperature	4.4 C (39.9 F)	16 of 100 (Routine)
Tashkent	Uzbekistan	Record low minimum temperature	10.4 C (50.7 F)	16 of 100 (Routine)
Kingston Queens U	Canada	Record high maximum temperature	31.7 C (89.1 F)	15 of 100 (Routine)
Kingston Queens U	Canada	Record high minimum temperature	23.9 C (75.0 F)	15 of 100 (Routine)
Welland	Canada	Record daily precipitation	12.7 mm (0.5 in)	15 of 100 (Routine)
Carrieton (Eurelia)	Australia	Record daily precipitation	6.4 mm (0.25 in)	14 of 100 (Routine)
Brisbane Regional Office	Australia	Record high minimum temperature	13.6 C (56.5 F)	14 of 100 (Routine)
Burdekin Shire Council	Australia	Record daily precipitation	0.5 mm (0.02 in)	13 of 100 (Routine)
Enoggera Reservoir	Australia	Record daily precipitation	3.8 mm (0.15 in)	13 of 100 (Routine)
Narrewilock	Australia	Record daily precipitation	7.6 mm (0.30 in)	13 of 100 (Routine)
Banff	Canada	Record low minimum temperature	0.6 C (33.1 F)	13 of 100 (Routine)
Tranebjerg	Denmark	Record high maximum temperature	27.0 C (80.6 F)	13 of 100 (Routine)
Manna Hill	Australia	Record daily precipitation	3.8 mm (0.15 in)	12 of 100 (Routine)
Yunta (Winnininnie)	Australia	Record daily precipitation	5.1 mm (0.20 in)	12 of 100 (Routine)
Adelaide West Terrace	Australia	Record high minimum temperature	12.1 C (53.8 F)	12 of 100 (Routine)
Violet Town	Australia	Record daily precipitation	19.8 mm (0.8 in)	12 of 100 (Routine)
Port Arthur	Canada	Record high maximum temperature	33.3 C (91.9 F)	12 of 100 (Routine)
Green Bay	United States	Record high maximum temperature	33.3 C (91.9 F)	12 of 100 (Routine)
Boulia Airport	Australia	Record high minimum temperature	17.4 C (63.3 F)	11 of 100 (Routine)
Goondiwindi Post Office	Australia	Record high minimum temperature	10.1 C (50.2 F)	11 of 100 (Routine)
Sheffield	United Kingdom	Record high minimum temperature	16.7 C (62.1 F)	11 of 100 (Routine)
Wilmington Wb City	United States	Record daily precipitation	36.3 mm (1.4 in)	11 of 100 (Routine)
Lubeck-Werft	Germany	Record high maximum temperature	28.5 C (83.3 F)	10 of 100 (Routine)
Minneapolis Wb Dwtn	United States	Record high maximum temperature	36.7 C (98.1 F)	9 of 100 (Routine)
Cairns Post Office	Australia	Record daily precipitation	5.3 mm (0.21 in)	8 of 100 (Routine)
Cooktown Post Office	Australia	Record daily precipitation	4.8 mm (0.19 in)	8 of 100 (Routine)
Beulah	Australia	Record daily precipitation	8.1 mm (0.32 in)	8 of 100 (Routine)
Nhill (Woorak)	Australia	Record daily precipitation	7.1 mm (0.28 in)	8 of 100 (Routine)
Narraport	Australia	Record daily precipitation	7.4 mm (0.29 in)	7 of 100 (Routine)
Niznij Novgorod	Russia	Record daily precipitation	12.6 mm (0.5 in)	7 of 100 (Routine)
Koonamore	Australia	Record daily precipitation	4.3 mm (0.17 in)	6 of 100 (Routine)
Minneapolis Wb Dwtn	United States	Record high minimum temperature	22.8 C (73.0 F)	6 of 100 (Routine)
Plymouth	United States	Record high minimum temperature	20.6 C (69.1 F)	6 of 100 (Routine)

Counts by Type and Timescale

81 records

Records set or tied on 10 July 1921 by type: Highest daily maximum 18, Lowest daily maximum 1, Highest daily minimum 22, Lowest daily minimum 7, Heaviest daily rainfall 33.

Records on 10 July 1921 by type
Record type	Records
Highest daily maximum	18
Lowest daily maximum	1
Highest daily minimum	22
Lowest daily minimum	7
Heaviest daily rainfall	33
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 10 July 1921 by timescale: all-time 2, monthly 1, daily 78.

How Much Records Were Beaten By

63 broken records

Margins by which the 63 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 27.9. Ties are not counted.

Top 20 by Significance

10 July 1921

Top 20 records on 10 July 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 July 1921	Guelph Oac, CA	all-time rain	83.6 mm (3.3 in)	23.4 mm (0.9 in)	14 years	50 of 100 (Notable)
10 July 1921	Armagh, GB	all-time high max	29.4 C (84.9 F)	0.3 C (0.5 F)	61 years	46 of 100 (Notable)
10 July 1921	Uccle, BE	daily high max	34.5 C (94.1 F)	3.4 C (6.1 F)	68 years	37 of 100 (Notable)
10 July 1921	London South, CA	monthly rain	80.0 mm (3.1 in)	15.2 mm (0.6 in)	32 years	36 of 100 (Notable)
10 July 1921	Watford, CA	daily rain	101.6 mm (4.0 in)	27.9 mm (1.1 in)	18 years	30 of 100 (Routine)
10 July 1921	Dublin Phoenix Park, IE	daily high max	27.2 C (81.0 F)	1.8 C (3.2 F)	53 years	27 of 100 (Routine)
10 July 1921	Lake Cochituate, US	daily rain	48.5 mm (1.9 in)	27.4 mm (1.1 in)	8 years	27 of 100 (Routine)
10 July 1921	Toronto, CA	daily high min	22.2 C (72.0 F)	1.1 C (2.0 F)	49 years	25 of 100 (Routine)
10 July 1921	Port Douglas - Warner St, AU	daily rain	8.9 mm (0.35 in)	8.9 mm (0.35 in)	33 years	20 of 100 (Routine)
10 July 1921	Mackay Post Office, AU	daily rain	13.7 mm (0.5 in)	12.9 mm (0.5 in)	25 years	20 of 100 (Routine)
10 July 1921	Wychitella South, AU	daily rain	11.4 mm (0.4 in)	5.0 mm (0.20 in)	35 years	20 of 100 (Routine)
10 July 1921	Tunis, TN	daily rain	9.0 mm (0.35 in)	9.0 mm (0.35 in)	34 years	20 of 100 (Routine)
10 July 1921	Oxford, GB	daily high max	31.4 C (88.5 F)	1.6 C (2.9 F)	20 years	20 of 100 (Routine)
10 July 1921	Gardiner, US	daily rain	43.7 mm (1.7 in)	16.0 mm (0.6 in)	19 years	20 of 100 (Routine)
10 July 1921	Port Stanley, CA	daily rain	18.0 mm (0.7 in)	1.5 mm (0.06 in)	45 years	19 of 100 (Routine)
10 July 1921	Ilulissat (Jakobshavn), GL	daily rain	8.0 mm (0.31 in)	3.6 mm (0.14 in)	26 years	19 of 100 (Routine)
10 July 1921	Somerville 4 NW, US	daily high min	24.4 C (75.9 F)	2.2 C (4.0 F)	35 years	19 of 100 (Routine)
10 July 1921	Bowen Post Office, AU	daily rain	2.8 mm (0.11 in)	2.8 mm (0.11 in)	39 years	18 of 100 (Routine)
10 July 1921	Charleville Post Office, AU	daily high min	14.4 C (57.9 F)	3.3 C (5.9 F)	29 years	18 of 100 (Routine)
10 July 1921	White River, CA	daily high max	33.3 C (91.9 F)	3.3 C (5.9 F)	24 years	18 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

1793 to 1921

Records set or tied on this calendar date in each year from 1793 to 1921. 1921 had 81 records.

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

Records on 07-10 in each year
Year	Records
1793	2
1805	1
1815	2
1826	1
1829	1
1835	1
1837	1
1839	1
1843	3
1845	1
1847	2
1849	1
1850	1
1851	1
1853	1
1856	1
1857	1
1859	1
1861	1
1864	1
1865	1
1866	1
1870	2
1871	2
1872	1
1874	4
1875	2
1876	3
1877	1
1878	1
1879	2
1880	2
1882	2
1884	1
1886	5
1887	1
1888	3
1889	2
1890	3
1891	4
1893	1
1894	3
1895	1
1896	5
1897	6
1898	4
1899	10
1900	4
1901	6
1902	12
1903	16
1904	25
1905	40
1906	4
1907	5
1908	7
1909	15
1910	25
1911	58
1912	29
1913	38
1914	48
1915	20
1916	56
1917	51
1918	36
1919	23
1920	29
1921	81
1922	67
1923	113
1924	66
1925	257
1926	321
1927	95
1928	102
1929	175
1930	540
1931	292
1932	355
1933	570
1934	327
1935	306
1936	1,338
1937	304
1938	151
1939	327
1940	398
1941	432
1942	628
1943	283
1944	478
1945	729
1946	467
1947	537
1948	367
1949	392
1950	680
1951	551
1952	814
1953	529
1954	684
1955	497
1956	434
1957	514
1958	402
1959	512
1960	451
1961	688
1962	456
1963	950
1964	368
1965	357
1966	512
1967	341
1968	598
1969	518
1970	464
1971	568
1972	447
1973	528
1974	871
1975	712
1976	724
1977	486
1978	1,076
1979	686
1980	1,113
1981	811
1982	602
1983	1,184
1984	962
1985	657
1986	686
1987	862
1988	1,024
1989	869
1990	820
1991	890
1992	864
1993	1,088
1994	864
1995	1,096
1996	1,604
1997	846
1998	1,259
1999	964
2000	889
2001	992
2002	1,336
2003	981
2004	621
2005	1,077
2006	920
2007	954
2008	874
2009	951
2010	1,509
2011	1,102
2012	1,015
2013	545
2014	660
2015	1,025
2016	859
2017	547
2018	554
2019	529
2020	775
2021	1,081
2022	691
2023	837
2024	1,576
2025	704
2026	472

Download the Data

Data for records on 1921-07-10: 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	52
5 to 10	5
10 to 15	1
15 to 20	2
20 to 25	1
25 to 30	2