Weather Records on 18 July 1910

33 weather records were set or tied worldwide on 18 July 1910. Highest significance: Wollongong Post Office, AU.

Key Facts for 18 July 1910

On 18 July 1910, 33 weather records were set or tied at long-record stations worldwide.
1 were record highs and 10 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 32 daily.
Wollongong Post Office set a daily record precipitation of 121.4 mm (4.8 in) on 18 July 1910.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 465 records.

Record Map

33 stations

33 station records on 18 July 1910 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 1910: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wollongong Post Office	Australia	Record daily precipitation	121.4 mm (4.8 in)	54 of 100 (Notable)
Gosford (Gertrude Place)	Australia	Record daily precipitation	111.8 mm (4.4 in)	48 of 100 (Notable)
Picton Council Depot	Australia	Record daily precipitation	75.7 mm (3.0 in)	47 of 100 (Notable)
Putbus	Germany	Record daily precipitation	64.1 mm (2.5 in)	47 of 100 (Notable)
Kurrajong Heights (Bells Line	Australia	Record daily precipitation	58.7 mm (2.3 in)	45 of 100 (Notable)
Arnsberg	Germany	Record daily precipitation	47.5 mm (1.9 in)	42 of 100 (Notable)
Botany No.1 Dam	Australia	Record daily precipitation	74.4 mm (2.9 in)	40 of 100 (Notable)
Scheveningen	Netherlands	Record daily precipitation	30.9 mm (1.2 in)	33 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record daily precipitation	70.9 mm (2.8 in)	30 of 100 (Routine)
Bringelly (Maryland)	Australia	Record daily precipitation	57.2 mm (2.3 in)	29 of 100 (Routine)
Uccle	Belgium	Record daily precipitation	26.5 mm (1.0 in)	27 of 100 (Routine)
Moss Vale (Hoskins Street)	Australia	Record daily precipitation	37.8 mm (1.5 in)	25 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record daily precipitation	32.2 mm (1.3 in)	24 of 100 (Routine)
San Diego Wbo	United States	Record high maximum temperature	27.2 C (81.0 F)	22 of 100 (Routine)
Den Helder-1	Netherlands	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Umea	Sweden	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
San Diego Wbo	United States	Record daily precipitation	0.3 mm (0.01 in)	20 of 100 (Routine)
Eden (Caravan Park)	Australia	Record daily precipitation	38.1 mm (1.5 in)	20 of 100 (Routine)
Tulbagh (Pol)	South Africa	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Washington	United States	Record low maximum temperature	22.2 C (72.0 F)	20 of 100 (Routine)
Montgomery Wb City	United States	Record low minimum temperature	19.4 C (66.9 F)	17 of 100 (Routine)
Lichtentanne	Germany	Record daily precipitation	22.1 mm (0.9 in)	15 of 100 (Routine)
Paarl (Tnk)	South Africa	Record daily precipitation	27.9 mm (1.1 in)	15 of 100 (Routine)
Wilmington Wb City	United States	Record daily precipitation	33.3 mm (1.3 in)	13 of 100 (Routine)
Beatrice	Canada	Record low minimum temperature	7.2 C (45.0 F)	12 of 100 (Routine)
Gravenhurst	Canada	Record low minimum temperature	6.7 C (44.1 F)	12 of 100 (Routine)
Malmesbury	South Africa	Record daily precipitation	14.0 mm (0.6 in)	12 of 100 (Routine)
Baltimore Customs House	United States	Record low maximum temperature	22.2 C (72.0 F)	12 of 100 (Routine)
Alice Springs Post Office	Australia	Record low maximum temperature	12.5 C (54.5 F)	11 of 100 (Routine)
Olympia Priest Pt Park	United States	Record low minimum temperature	5.0 C (41.0 F)	10 of 100 (Routine)
Atlantic City Marina	United States	Record low maximum temperature	21.1 C (70.0 F)	10 of 100 (Routine)
Ny City Cntrl Park	United States	Record low maximum temperature	21.1 C (70.0 F)	7 of 100 (Routine)
Philadelphia City	United States	Record low maximum temperature	22.2 C (72.0 F)	6 of 100 (Routine)

Counts by Type and Timescale

33 records

Records set or tied on 18 July 1910 by type: Highest daily maximum 1, Lowest daily maximum 6, Lowest daily minimum 4, Heaviest daily rainfall 22.

Records on 18 July 1910 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	6
Highest daily minimum	0
Lowest daily minimum	4
Heaviest daily rainfall	22
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 1910 by timescale: all-time 0, monthly 1, daily 32.

How Much Records Were Beaten By

33 broken records

Margins by which the 33 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 92.2. Ties are not counted.

Top 20 by Significance

18 July 1910

Top 20 records on 18 July 1910 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 1910	Wollongong Post Office, AU	daily rain	121.4 mm (4.8 in)	92.2 mm (3.6 in)	33 years	54 of 100 (Notable)
18 July 1910	Gosford (Gertrude Place), AU	daily rain	111.8 mm (4.4 in)	91.5 mm (3.6 in)	16 years	48 of 100 (Notable)
18 July 1910	Picton Council Depot, AU	daily rain	75.7 mm (3.0 in)	65.8 mm (2.6 in)	19 years	47 of 100 (Notable)
18 July 1910	Putbus, DE	monthly rain	64.1 mm (2.5 in)	19.0 mm (0.7 in)	4 years	47 of 100 (Notable)
18 July 1910	Kurrajong Heights (Bells Line, AU	daily rain	58.7 mm (2.3 in)	47.8 mm (1.9 in)	33 years	45 of 100 (Notable)
18 July 1910	Arnsberg, DE	daily rain	47.5 mm (1.9 in)	26.1 mm (1.0 in)	21 years	42 of 100 (Notable)
18 July 1910	Botany No.1 Dam, AU	daily rain	74.4 mm (2.9 in)	51.5 mm (2.0 in)	19 years	40 of 100 (Notable)
18 July 1910	Scheveningen, NL	daily rain	30.9 mm (1.2 in)	16.3 mm (0.6 in)	18 years	33 of 100 (Routine)
18 July 1910	Sydney (Observatory Hill), AU	daily rain	70.9 mm (2.8 in)	33.3 mm (1.3 in)	19 years	30 of 100 (Routine)
18 July 1910	Bringelly (Maryland), AU	daily rain	57.2 mm (2.3 in)	21.6 mm (0.9 in)	40 years	29 of 100 (Routine)
18 July 1910	Uccle, BE	daily rain	26.5 mm (1.0 in)	12.5 mm (0.5 in)	18 years	27 of 100 (Routine)
18 July 1910	Moss Vale (Hoskins Street), AU	daily rain	37.8 mm (1.5 in)	21.5 mm (0.8 in)	33 years	25 of 100 (Routine)
18 July 1910	Leipzig-Holzhausen, DE	daily rain	32.2 mm (1.3 in)	13.1 mm (0.5 in)	16 years	24 of 100 (Routine)
18 July 1910	San Diego Wbo, US	daily high max	27.2 C (81.0 F)	2.8 C (5.0 F)	18 years	22 of 100 (Routine)
18 July 1910	Den Helder-1, NL	daily rain	15.5 mm (0.6 in)	4.9 mm (0.19 in)	38 years	20 of 100 (Routine)
18 July 1910	Umea, SE	daily rain	14.5 mm (0.6 in)	6.3 mm (0.25 in)	27 years	20 of 100 (Routine)
18 July 1910	San Diego Wbo, US	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	58 years	20 of 100 (Routine)
18 July 1910	Eden (Caravan Park), AU	daily rain	38.1 mm (1.5 in)	12.7 mm (0.5 in)	16 years	20 of 100 (Routine)
18 July 1910	Tulbagh (Pol), ZA	daily rain	21.6 mm (0.9 in)	8.4 mm (0.33 in)	26 years	20 of 100 (Routine)
18 July 1910	Washington, US	daily low max	22.2 C (72.0 F)	3.4 C (6.1 F)	18 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

1793 to 1910

Records set or tied on this calendar date in each year from 1793 to 1910. 1910 had 33 records.

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

Records on 07-18 in each year
Year	Records
1793	2
1801	1
1845	1
1847	1
1851	1
1858	1
1862	1
1863	2
1865	1
1866	2
1871	2
1872	1
1874	1
1877	1
1878	4
1880	1
1881	2
1883	2
1886	2
1887	2
1888	1
1889	2
1890	4
1891	1
1892	2
1895	1
1896	2
1897	6
1898	2
1899	3
1900	8
1901	5
1902	3
1903	14
1904	7
1905	22
1906	13
1907	12
1908	39
1909	11
1910	33
1911	42
1912	28
1913	21
1914	47
1915	95
1916	235
1917	265
1918	58
1919	38
1920	59
1921	67
1922	138
1923	126
1924	306
1925	217
1926	191
1927	85
1928	108
1929	123
1930	462
1931	382
1932	343
1933	228
1934	502
1935	212
1936	665
1937	334
1938	306
1939	424
1940	352
1941	349
1942	661
1943	277
1944	333
1945	350
1946	334
1947	385
1948	289
1949	521
1950	632
1951	307
1952	597
1953	493
1954	501
1955	423
1956	466
1957	325
1958	475
1959	548
1960	669
1961	280
1962	516
1963	269
1964	523
1965	707
1966	545
1967	735
1968	998
1969	590
1970	530
1971	625
1972	701
1973	976
1974	729
1975	643
1976	1,047
1977	839
1978	881
1979	821
1980	747
1981	624
1982	749
1983	1,071
1984	1,000
1985	582
1986	908
1987	1,845
1988	1,001
1989	1,233
1990	1,053
1991	589
1992	1,135
1993	1,013
1994	720
1995	904
1996	1,157
1997	785
1998	1,169
1999	900
2000	1,214
2001	909
2002	840
2003	1,159
2004	985
2005	1,210
2006	1,285
2007	1,267
2008	593
2009	1,757
2010	878
2011	1,148
2012	1,070
2013	921
2014	1,348
2015	745
2016	609
2017	426
2018	699
2019	548
2020	361
2021	676
2022	1,071
2023	867
2024	581
2025	779
2026	806

Download the Data

Data for records on 1910-07-18: 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	24
20 to 40	4
40 to 60	2
60 to 80	1
80 to 100	2