Weather Records on 18 August 1913

43 weather records were set or tied worldwide on 18 August 1913. Highest significance: Uppsala_Aut, SE.

Key Facts for 18 August 1913

On 18 August 1913, 43 weather records were set or tied at long-record stations worldwide.
30 were record highs and 6 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 43 daily.
Uppsala_Aut set a daily record precipitation of 33.4 mm (1.3 in) on 18 August 1913.
Across 171 earlier years (1797 to 2026) the same calendar date averaged 443 records.

Record Map

43 stations

43 station records on 18 August 1913 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 August 1913: highest significance records shown on the map
Station	Country	Type	Value	Significance
Uppsala_Aut	Sweden	Record daily precipitation	33.4 mm (1.3 in)	32 of 100 (Routine)
Gysinge	Sweden	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Newark Liberty Intl AP	United States	Record high maximum temperature	36.7 C (98.1 F)	24 of 100 (Routine)
Concord	United States	Record high maximum temperature	36.1 C (97.0 F)	23 of 100 (Routine)
Gospic	Croatia	Record daily precipitation	39.2 mm (1.5 in)	22 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high minimum temperature	23.9 C (75.0 F)	22 of 100 (Routine)
Vasteras-Hasslo	Sweden	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Orskar_A	Sweden	Record daily precipitation	21.2 mm (0.8 in)	20 of 100 (Routine)
Ny City Cntrl Park	United States	Record high maximum temperature	34.4 C (93.9 F)	20 of 100 (Routine)
Kingston Queens U	Canada	Record high maximum temperature	31.1 C (88.0 F)	19 of 100 (Routine)
Hoburg	Sweden	Record daily precipitation	22.9 mm (0.9 in)	19 of 100 (Routine)
Middletown 4 W	United States	Record high maximum temperature	35.0 C (95.0 F)	18 of 100 (Routine)
Buffalo	United States	Record high maximum temperature	32.2 C (90.0 F)	18 of 100 (Routine)
Olands Norra Udde	Sweden	Record daily precipitation	10.2 mm (0.4 in)	17 of 100 (Routine)
Middletown 4 W	United States	Record high minimum temperature	20.6 C (69.1 F)	16 of 100 (Routine)
Barrie	Canada	Record high minimum temperature	18.9 C (66.0 F)	15 of 100 (Routine)
Toledo Blade	United States	Record high minimum temperature	22.2 C (72.0 F)	15 of 100 (Routine)
Buffalo	United States	Record high minimum temperature	22.2 C (72.0 F)	13 of 100 (Routine)
World Trade Ctr	United States	Record high maximum temperature	32.8 C (91.0 F)	13 of 100 (Routine)
Philadelphia City	United States	Record high maximum temperature	33.3 C (91.9 F)	13 of 100 (Routine)
Beatrice	Canada	Record high minimum temperature	17.2 C (63.0 F)	12 of 100 (Routine)
Peterborough	Canada	Record high minimum temperature	19.4 C (66.9 F)	12 of 100 (Routine)
Riva	Italy	Record low minimum temperature	13.6 C (56.5 F)	12 of 100 (Routine)
Atlantic City Marina	United States	Record high minimum temperature	23.3 C (73.9 F)	12 of 100 (Routine)
Toronto	Canada	Record high minimum temperature	20.0 C (68.0 F)	10 of 100 (Routine)
Chemnitz	Germany	Record low maximum temperature	14.6 C (58.3 F)	9 of 100 (Routine)
Port Stanley	Canada	Record high minimum temperature	20.0 C (68.0 F)	5 of 100 (Routine)
Lakefield	Canada	Record high maximum temperature	32.8 C (91.0 F)	5 of 100 (Routine)
Freiburg	Germany	Record low minimum temperature	7.3 C (45.1 F)	5 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record low maximum temperature	15.6 C (60.1 F)	4 of 100 (Routine)
Welland	Canada	Record high minimum temperature	20.0 C (68.0 F)	3 of 100 (Routine)
Ny City Cntrl Park	United States	Record high minimum temperature	23.3 C (73.9 F)	3 of 100 (Routine)
Barrie	Canada	Record high maximum temperature	31.7 C (89.1 F)	2 of 100 (Routine)
Lakefield	Canada	Record high minimum temperature	21.1 C (70.0 F)	2 of 100 (Routine)
Dalhousie	Canada	Record high minimum temperature	13.9 C (57.0 F)	2 of 100 (Routine)
Plauen	Germany	Record low maximum temperature	15.4 C (59.7 F)	2 of 100 (Routine)
Mahackala	Russia	Record high minimum temperature	23.3 C (73.9 F)	2 of 100 (Routine)
World Trade Ctr	United States	Record high minimum temperature	22.2 C (72.0 F)	2 of 100 (Routine)
Windsor Riverside	Canada	Record high minimum temperature	21.7 C (71.1 F)	1 of 100 (Routine)
Halmstad	Sweden	Record high minimum temperature	15.0 C (59.0 F)	1 of 100 (Routine)
Vastervik	Sweden	Record low minimum temperature	7.5 C (45.5 F)	1 of 100 (Routine)
Baltimore Customs House	United States	Record high maximum temperature	33.3 C (91.9 F)	1 of 100 (Routine)
Huron Rgnl AP	United States	Record high minimum temperature	20.0 C (68.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

43 records

Records set or tied on 18 August 1913 by type: Highest daily maximum 11, Lowest daily maximum 3, Highest daily minimum 19, Lowest daily minimum 3, Heaviest daily rainfall 7.

Records on 18 August 1913 by type
Record type	Records
Highest daily maximum	11
Lowest daily maximum	3
Highest daily minimum	19
Lowest daily minimum	3
Heaviest daily rainfall	7
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 August 1913 by timescale: all-time 0, monthly 0, daily 43.

How Much Records Were Beaten By

29 broken records

Margins by which the 29 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 18.1. Ties are not counted.

Top 20 by Significance

18 August 1913

Top 20 records on 18 August 1913 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 August 1913	Uppsala_Aut, SE	daily rain	33.4 mm (1.3 in)	3.3 mm (0.13 in)	68 years	32 of 100 (Routine)
18 August 1913	Gysinge, SE	daily rain	33.0 mm (1.3 in)	18.0 mm (0.7 in)	3 years	30 of 100 (Routine)
18 August 1913	Newark Liberty Intl AP, US	daily high max	36.7 C (98.1 F)	5.6 C (10.1 F)	6 years	24 of 100 (Routine)
18 August 1913	Concord, US	daily high max	36.1 C (97.0 F)	2.8 C (5.0 F)	42 years	23 of 100 (Routine)
18 August 1913	Gospic, HR	daily rain	39.2 mm (1.5 in)	18.1 mm (0.7 in)	25 years	22 of 100 (Routine)
18 August 1913	Cleveland 2717 Euclid, US	daily high min	23.9 C (75.0 F)	2.2 C (4.0 F)	40 years	22 of 100 (Routine)
18 August 1913	Vasteras-Hasslo, SE	daily rain	22.4 mm (0.9 in)	5.9 mm (0.23 in)	47 years	20 of 100 (Routine)
18 August 1913	Orskar_A, SE	daily rain	21.2 mm (0.8 in)	9.3 mm (0.37 in)	18 years	20 of 100 (Routine)
18 August 1913	Ny City Cntrl Park, US	daily high max	34.4 C (93.9 F)	1.6 C (2.9 F)	40 years	20 of 100 (Routine)
18 August 1913	Kingston Queens U, CA	daily high max	31.1 C (88.0 F)	2.2 C (4.0 F)	28 years	19 of 100 (Routine)
18 August 1913	Hoburg, SE	daily rain	22.9 mm (0.9 in)	4.6 mm (0.18 in)	27 years	19 of 100 (Routine)
18 August 1913	Middletown 4 W, US	daily high max	35.0 C (95.0 F)	3.3 C (5.9 F)	20 years	18 of 100 (Routine)
18 August 1913	Buffalo, US	daily high max	32.2 C (90.0 F)	2.2 C (4.0 F)	28 years	18 of 100 (Routine)
18 August 1913	Olands Norra Udde, SE	daily rain	10.2 mm (0.4 in)	3.7 mm (0.15 in)	27 years	17 of 100 (Routine)
18 August 1913	Middletown 4 W, US	daily high min	20.6 C (69.1 F)	0.9 C (1.6 F)	37 years	16 of 100 (Routine)
18 August 1913	Barrie, CA	daily high min	18.9 C (66.0 F)	1.1 C (2.0 F)	29 years	15 of 100 (Routine)
18 August 1913	Toledo Blade, US	daily high min	22.2 C (72.0 F)	1.1 C (2.0 F)	29 years	15 of 100 (Routine)
18 August 1913	Buffalo, US	daily high min	22.2 C (72.0 F)	0.5 C (0.9 F)	28 years	13 of 100 (Routine)
18 August 1913	World Trade Ctr, US	daily high max	32.8 C (91.0 F)	1.1 C (2.0 F)	20 years	13 of 100 (Routine)
18 August 1913	Philadelphia City, US	daily high max	33.3 C (91.9 F)	1.1 C (2.0 F)	20 years	13 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

1797 to 1913

Records set or tied on this calendar date in each year from 1797 to 1913. 1913 had 43 records.

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

Records on 08-18 in each year
Year	Records
1797	2
1805	1
1816	1
1827	1
1829	1
1830	1
1833	1
1841	1
1844	1
1845	3
1846	1
1847	1
1849	1
1851	1
1852	1
1853	1
1854	2
1855	1
1856	1
1861	1
1864	2
1866	1
1868	2
1869	1
1870	2
1872	1
1873	1
1875	3
1876	1
1878	1
1879	2
1883	3
1885	3
1886	3
1887	3
1888	2
1889	1
1890	1
1891	2
1892	6
1893	4
1894	4
1895	1
1898	4
1899	6
1900	2
1901	10
1902	8
1903	6
1904	8
1905	10
1906	40
1907	7
1908	21
1909	24
1910	16
1911	11
1912	21
1913	43
1914	37
1915	60
1916	71
1917	70
1918	53
1919	34
1920	51
1921	39
1922	129
1923	90
1924	225
1925	300
1926	168
1927	269
1928	141
1929	181
1930	150
1931	241
1932	382
1933	431
1934	638
1935	424
1936	766
1937	308
1938	243
1939	381
1940	434
1941	467
1942	333
1943	738
1944	325
1945	400
1946	416
1947	958
1948	315
1949	393
1950	683
1951	355
1952	405
1953	323
1954	622
1955	795
1956	580
1957	380
1958	580
1959	537
1960	599
1961	415
1962	428
1963	760
1964	443
1965	525
1966	573
1967	623
1968	795
1969	530
1970	597
1971	381
1972	493
1973	734
1974	639
1975	844
1976	917
1977	1,112
1978	854
1979	1,309
1980	771
1981	1,386
1982	563
1983	1,420
1984	600
1985	765
1986	861
1987	1,609
1988	1,351
1989	952
1990	920
1991	533
1992	1,497
1993	706
1994	1,027
1995	1,882
1996	760
1997	1,191
1998	923
1999	888
2000	1,183
2001	1,036
2002	1,306
2003	860
2004	1,050
2005	865
2006	842
2007	1,116
2008	1,265
2009	839
2010	1,167
2011	1,239
2012	1,247
2013	752
2014	751
2015	880
2016	704
2017	565
2018	462
2019	615
2020	1,541
2021	1,118
2022	1,237
2023	1,094
2024	696
2025	455
2026	545

Download the Data

Data for records on 1913-08-18: 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 3	19
3 to 5	5
5 to 8	2
8 to 10	1
10 to 13	0
13 to 15	0
15 to 18	0
18 to 20	2