Weather Records on 13 August 1918

68 weather records were set or tied worldwide on 13 August 1918. Highest significance: Port Dover, CA.

Key Facts for 13 August 1918

On 13 August 1918, 68 weather records were set or tied at long-record stations worldwide.
59 were record highs and 4 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 6 monthly and 61 daily.
Port Dover set an all-time record high maximum temperature of 35.0 C (95.0 F) on 13 August 1918.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 477 records.

Record Map

68 stations

68 station records on 13 August 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 13 August 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Dover	Canada	Record high maximum temperature	35.0 C (95.0 F)	37 of 100 (Notable)
Cleveland 2717 Euclid	United States	Record high maximum temperature	35.0 C (95.0 F)	32 of 100 (Routine)
Galway	Ireland	Record low minimum temperature	4.4 C (39.9 F)	29 of 100 (Routine)
Beatrice	Canada	Record high maximum temperature	33.3 C (91.9 F)	28 of 100 (Routine)
Stratford	Canada	Record high maximum temperature	37.2 C (99.0 F)	28 of 100 (Routine)
Milwaukee Wb City	United States	Record high maximum temperature	36.1 C (97.0 F)	28 of 100 (Routine)
Coldwater	Canada	Record high maximum temperature	35.0 C (95.0 F)	27 of 100 (Routine)
Lakefield	Canada	Record high minimum temperature	21.7 C (71.1 F)	27 of 100 (Routine)
Lindsay	Canada	Record high maximum temperature	36.1 C (97.0 F)	27 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high minimum temperature	26.7 C (80.1 F)	27 of 100 (Routine)
Toledo Blade	United States	Record high minimum temperature	25.0 C (77.0 F)	27 of 100 (Routine)
Gravenhurst	Canada	Record high maximum temperature	35.6 C (96.1 F)	26 of 100 (Routine)
Lucknow	Canada	Record high minimum temperature	21.1 C (70.0 F)	26 of 100 (Routine)
Brantford	Canada	Record high maximum temperature	37.2 C (99.0 F)	26 of 100 (Routine)
Guelph Oac	Canada	Record high maximum temperature	35.6 C (96.1 F)	26 of 100 (Routine)
Parry Sound	Canada	Record high maximum temperature	34.4 C (93.9 F)	24 of 100 (Routine)
Buffalo	United States	Record high minimum temperature	23.9 C (75.0 F)	24 of 100 (Routine)
Toledo Blade	United States	Record high maximum temperature	35.6 C (96.1 F)	24 of 100 (Routine)
Ekaterinburg	Russia	Record low minimum temperature	3.2 C (37.8 F)	23 of 100 (Routine)
Lakefield	Canada	Record daily precipitation	28.4 mm (1.1 in)	22 of 100 (Routine)
Peterborough	Canada	Record high maximum temperature	36.7 C (98.1 F)	22 of 100 (Routine)
Lucknow	Canada	Record high maximum temperature	37.2 C (99.0 F)	20 of 100 (Routine)
Southampton	Canada	Record high maximum temperature	32.8 C (91.0 F)	20 of 100 (Routine)
Southampton	Canada	Record high minimum temperature	20.0 C (68.0 F)	20 of 100 (Routine)
London South	Canada	Record high maximum temperature	37.2 C (99.0 F)	20 of 100 (Routine)
Woodstock	Canada	Record high maximum temperature	34.4 C (93.9 F)	20 of 100 (Routine)
Stratford	Canada	Record high minimum temperature	20.0 C (68.0 F)	19 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	20.6 C (69.1 F)	19 of 100 (Routine)
Port Stanley	Canada	Record high minimum temperature	22.2 C (72.0 F)	18 of 100 (Routine)
Toronto	Canada	Record high maximum temperature	38.9 C (102.0 F)	18 of 100 (Routine)
Haliburton A	Canada	Record high maximum temperature	35.0 C (95.0 F)	18 of 100 (Routine)
Gravenhurst	Canada	Record high minimum temperature	18.9 C (66.0 F)	17 of 100 (Routine)
Welland	Canada	Record high maximum temperature	32.2 C (90.0 F)	17 of 100 (Routine)
Alma	United States	Record high maximum temperature	36.7 C (98.1 F)	16 of 100 (Routine)
Belle Isle	Canada	Record low minimum temperature	2.8 C (37.0 F)	15 of 100 (Routine)
Sotchi	Russia	Record daily precipitation	30.3 mm (1.2 in)	14 of 100 (Routine)
Wilmington Wb City	United States	Record high maximum temperature	36.7 C (98.1 F)	13 of 100 (Routine)
Madison Wb City	United States	Record high maximum temperature	33.9 C (93.0 F)	13 of 100 (Routine)
Coldwater	Canada	Record high minimum temperature	21.7 C (71.1 F)	12 of 100 (Routine)
Vasteras-Hasslo	Sweden	Record high minimum temperature	17.0 C (62.6 F)	12 of 100 (Routine)
Harrisburg - Coop	United States	Record high maximum temperature	34.4 C (93.9 F)	12 of 100 (Routine)
London South	Canada	Record high minimum temperature	21.1 C (70.0 F)	11 of 100 (Routine)
State College	United States	Record high maximum temperature	32.2 C (90.0 F)	11 of 100 (Routine)
Rowlesburg 1	United States	Record daily precipitation	23.4 mm (0.9 in)	11 of 100 (Routine)
Guelph Oac	Canada	Record high minimum temperature	20.6 C (69.1 F)	9 of 100 (Routine)
Owen Sound	Canada	Record high minimum temperature	19.4 C (66.9 F)	8 of 100 (Routine)
Alton	Canada	Record high maximum temperature	31.7 C (89.1 F)	8 of 100 (Routine)
Blue Hill Coop	United States	Record high maximum temperature	31.1 C (88.0 F)	8 of 100 (Routine)
Welland	Canada	Record high minimum temperature	20.6 C (69.1 F)	7 of 100 (Routine)
Brantford	Canada	Record high minimum temperature	21.1 C (70.0 F)	7 of 100 (Routine)
Alton	Canada	Record high minimum temperature	18.3 C (64.9 F)	7 of 100 (Routine)
Hamilton	Canada	Record high maximum temperature	37.2 C (99.0 F)	7 of 100 (Routine)
Kiev	Ukraine	Record low maximum temperature	17.4 C (63.3 F)	7 of 100 (Routine)
Northfield	United States	Record high maximum temperature	31.1 C (88.0 F)	7 of 100 (Routine)
Owen Sound	Canada	Record high maximum temperature	36.1 C (97.0 F)	6 of 100 (Routine)
Lindsay	Canada	Record high minimum temperature	18.3 C (64.9 F)	6 of 100 (Routine)
Gavle	Sweden	Record high minimum temperature	14.5 C (58.1 F)	6 of 100 (Routine)
Milwaukee Wb City	United States	Record daily precipitation	8.4 mm (0.33 in)	6 of 100 (Routine)
Sveg	Sweden	Record daily precipitation	17.9 mm (0.7 in)	5 of 100 (Routine)
Alma	United States	Record high minimum temperature	22.8 C (73.0 F)	5 of 100 (Routine)

Counts by Type and Timescale

68 records

Records set or tied on 13 August 1918 by type: Highest daily maximum 35, Lowest daily maximum 1, Highest daily minimum 24, Lowest daily minimum 3, Heaviest daily rainfall 5.

Records on 13 August 1918 by type
Record type	Records
Highest daily maximum	35
Lowest daily maximum	1
Highest daily minimum	24
Lowest daily minimum	3
Heaviest daily rainfall	5
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 13 August 1918 by timescale: all-time 1, monthly 6, daily 61.

How Much Records Were Beaten By

57 broken records

Margins by which the 57 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 15.2. Ties are not counted.

Top 20 by Significance

13 August 1918

Top 20 records on 13 August 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 August 1918	Port Dover, CA	all-time high max	35.0 C (95.0 F)	0.6 C (1.1 F)	40 years	37 of 100 (Notable)
13 August 1918	Cleveland 2717 Euclid, US	daily high max	35.0 C (95.0 F)	5.6 C (10.1 F)	45 years	32 of 100 (Routine)
13 August 1918	Galway, IE	daily low min	4.4 C (39.9 F)	2.8 C (5.0 F)	48 years	29 of 100 (Routine)
13 August 1918	Beatrice, CA	daily high max	33.3 C (91.9 F)	5.5 C (9.9 F)	33 years	28 of 100 (Routine)
13 August 1918	Stratford, CA	daily high max	37.2 C (99.0 F)	5.5 C (9.9 F)	31 years	28 of 100 (Routine)
13 August 1918	Milwaukee Wb City, US	daily high max	36.1 C (97.0 F)	5.5 C (9.9 F)	37 years	28 of 100 (Routine)
13 August 1918	Coldwater, CA	daily high max	35.0 C (95.0 F)	6.7 C (12.1 F)	31 years	27 of 100 (Routine)
13 August 1918	Lakefield, CA	daily high min	21.7 C (71.1 F)	4.5 C (8.1 F)	38 years	27 of 100 (Routine)
13 August 1918	Lindsay, CA	daily high max	36.1 C (97.0 F)	6.1 C (11.0 F)	33 years	27 of 100 (Routine)
13 August 1918	Cleveland 2717 Euclid, US	daily high min	26.7 C (80.1 F)	3.4 C (6.1 F)	45 years	27 of 100 (Routine)
13 August 1918	Toledo Blade, US	daily high min	25.0 C (77.0 F)	3.9 C (7.0 F)	41 years	27 of 100 (Routine)
13 August 1918	Gravenhurst, CA	monthly high max	35.6 C (96.1 F)	0.6 C (1.1 F)	36 years	26 of 100 (Routine)
13 August 1918	Lucknow, CA	daily high min	21.1 C (70.0 F)	6.1 C (11.0 F)	31 years	26 of 100 (Routine)
13 August 1918	Brantford, CA	daily high max	37.2 C (99.0 F)	4.4 C (7.9 F)	36 years	26 of 100 (Routine)
13 August 1918	Guelph Oac, CA	daily high max	35.6 C (96.1 F)	5.6 C (10.1 F)	31 years	26 of 100 (Routine)
13 August 1918	Parry Sound, CA	daily high max	34.4 C (93.9 F)	3.3 C (5.9 F)	41 years	24 of 100 (Routine)
13 August 1918	Buffalo, US	daily high min	23.9 C (75.0 F)	2.8 C (5.0 F)	41 years	24 of 100 (Routine)
13 August 1918	Toledo Blade, US	daily high max	35.6 C (96.1 F)	5.0 C (9.0 F)	23 years	24 of 100 (Routine)
13 August 1918	Ekaterinburg, RU	daily low min	3.2 C (37.8 F)	4.2 C (7.6 F)	27 years	23 of 100 (Routine)
13 August 1918	Lakefield, CA	daily rain	28.4 mm (1.1 in)	15.2 mm (0.6 in)	22 years	22 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 1918

Records set or tied on this calendar date in each year from 1793 to 1918. 1918 had 68 records.

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

Records on 08-13 in each year
Year	Records
1793	1
1796	1
1807	1
1843	2
1849	1
1855	1
1856	1
1857	1
1861	3
1864	3
1867	3
1868	2
1871	1
1872	1
1874	1
1876	3
1878	1
1879	1
1881	1
1885	3
1886	1
1887	5
1889	3
1890	2
1891	1
1892	1
1893	3
1894	4
1895	6
1896	4
1897	9
1898	2
1899	4
1900	3
1901	3
1902	23
1903	12
1904	11
1905	11
1906	8
1907	3
1908	36
1909	33
1910	9
1911	41
1912	53
1913	20
1914	19
1915	32
1916	64
1917	62
1918	68
1919	38
1920	56
1921	34
1922	39
1923	84
1924	168
1925	145
1926	168
1927	113
1928	215
1929	184
1930	490
1931	596
1932	369
1933	291
1934	427
1935	400
1936	705
1937	370
1938	442
1939	276
1940	631
1941	516
1942	388
1943	611
1944	761
1945	355
1946	599
1947	685
1948	346
1949	420
1950	436
1951	373
1952	985
1953	238
1954	781
1955	732
1956	355
1957	432
1958	352
1959	363
1960	460
1961	503
1962	550
1963	583
1964	1,526
1965	734
1966	565
1967	1,091
1968	828
1969	663
1970	390
1971	431
1972	485
1973	452
1974	572
1975	462
1976	693
1977	678
1978	761
1979	1,198
1980	502
1981	534
1982	653
1983	647
1984	597
1985	829
1986	609
1987	1,106
1988	1,363
1989	637
1990	770
1991	845
1992	1,666
1993	993
1994	944
1995	1,910
1996	1,276
1997	1,009
1998	917
1999	1,363
2000	719
2001	861
2002	1,475
2003	1,993
2004	2,040
2005	1,418
2006	1,023
2007	1,243
2008	842
2009	806
2010	1,783
2011	736
2012	969
2013	430
2014	701
2015	653
2016	1,064
2017	523
2018	462
2019	653
2020	753
2021	928
2022	799
2023	763
2024	1,061
2025	714
2026	1,097

Download the Data

Data for records on 1918-08-13: 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 2026-10-16 (16 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 2	30
2 to 4	9
4 to 6	13
6 to 8	4
8 to 10	0
10 to 12	0
12 to 14	0
14 to 16	1