Weather Records on 30 August 1911

41 weather records were set or tied worldwide on 30 August 1911. Highest significance: Philadelphia City, US.

Key Facts for 30 August 1911

On 30 August 1911, 41 weather records were set or tied at long-record stations worldwide.
12 were record highs and 21 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 38 daily.
Philadelphia City set a daily record precipitation of 58.9 mm (2.3 in) on 30 August 1911.
Across 169 earlier years (1806 to 2026) the same calendar date averaged 425 records.

Record Map

41 stations

41 station records on 30 August 1911 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 August 1911: highest significance records shown on the map
Station	Country	Type	Value	Significance
Philadelphia City	United States	Record daily precipitation	58.9 mm (2.3 in)	36 of 100 (Notable)
Vineland	United States	Record daily precipitation	53.3 mm (2.1 in)	31 of 100 (Routine)
Gravenhurst	Canada	Record low minimum temperature	-0.6 C (30.9 F)	26 of 100 (Routine)
Baltimore Customs House	United States	Record daily precipitation	43.9 mm (1.7 in)	25 of 100 (Routine)
World Trade Ctr	United States	Record low minimum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Trenton 2	United States	Record daily precipitation	38.4 mm (1.5 in)	18 of 100 (Routine)
Windsor Riverside	Canada	Record low maximum temperature	18.9 C (66.0 F)	17 of 100 (Routine)
Ny City Cntrl Park	United States	Record low maximum temperature	16.7 C (62.1 F)	17 of 100 (Routine)
St John's	Canada	Record high minimum temperature	16.7 C (62.1 F)	15 of 100 (Routine)
Regensburg	Germany	Record high minimum temperature	16.6 C (61.9 F)	15 of 100 (Routine)
Atlantic City Marina	United States	Record daily precipitation	34.0 mm (1.3 in)	15 of 100 (Routine)
Karlsruhe	Germany	Record high minimum temperature	17.1 C (62.8 F)	14 of 100 (Routine)
Moorestown 4 E	United States	Record daily precipitation	36.6 mm (1.4 in)	14 of 100 (Routine)
Chattanooga Wb City	United States	Record low maximum temperature	22.8 C (73.0 F)	14 of 100 (Routine)
Washington	United States	Record low maximum temperature	16.7 C (62.1 F)	14 of 100 (Routine)
Bamberg	Germany	Record high minimum temperature	16.8 C (62.2 F)	13 of 100 (Routine)
Gorlitz	Germany	Record high minimum temperature	16.6 C (61.9 F)	13 of 100 (Routine)
Stratford	Canada	Record low minimum temperature	3.3 C (37.9 F)	12 of 100 (Routine)
Philadelphia City	United States	Record low maximum temperature	17.2 C (63.0 F)	11 of 100 (Routine)
Sandvig	Denmark	Record high minimum temperature	16.2 C (61.2 F)	10 of 100 (Routine)
Toledo Blade	United States	Record low maximum temperature	18.3 C (64.9 F)	10 of 100 (Routine)
Little Rock St Capitol	United States	Record low maximum temperature	25.6 C (78.1 F)	9 of 100 (Routine)
Baltimore Customs House	United States	Record low maximum temperature	17.2 C (63.0 F)	9 of 100 (Routine)
Reading Wb City	United States	Record daily precipitation	19.8 mm (0.8 in)	9 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record high minimum temperature	17.1 C (62.8 F)	8 of 100 (Routine)
Nurnberg	Germany	Record high minimum temperature	16.5 C (61.7 F)	8 of 100 (Routine)
Velikie Luki	Russia	Record high minimum temperature	15.6 C (60.1 F)	8 of 100 (Routine)
World Trade Ctr	United States	Record low maximum temperature	17.2 C (63.0 F)	7 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record high minimum temperature	13.9 C (57.0 F)	6 of 100 (Routine)
Hamilton	Canada	Record low maximum temperature	17.2 C (63.0 F)	6 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record high minimum temperature	15.3 C (59.5 F)	6 of 100 (Routine)
Kremsmuenster	Austria	Record high minimum temperature	17.6 C (63.7 F)	5 of 100 (Routine)
Beatrice	Canada	Record low minimum temperature	-0.6 C (30.9 F)	5 of 100 (Routine)
Washington	United States	Record daily precipitation	29.0 mm (1.1 in)	3 of 100 (Routine)
Toledo Blade	United States	Record low minimum temperature	9.4 C (48.9 F)	2 of 100 (Routine)
Montreal McGill	Canada	Record low minimum temperature	8.3 C (46.9 F)	1 of 100 (Routine)
Madison Wb City	United States	Record low minimum temperature	9.4 C (48.9 F)	1 of 100 (Routine)
Atlantic City Marina	United States	Record low maximum temperature	19.4 C (66.9 F)	1 of 100 (Routine)
Escanaba	United States	Record low maximum temperature	16.1 C (61.0 F)	1 of 100 (Routine)
Southampton	Canada	Record low minimum temperature	4.4 C (39.9 F)	0 of 100 (Routine)
Lakefield	Canada	Record low minimum temperature	5.6 C (42.1 F)	0 of 100 (Routine)

Counts by Type and Timescale

41 records

Records set or tied on 30 August 1911 by type: Lowest daily maximum 12, Highest daily minimum 12, Lowest daily minimum 9, Heaviest daily rainfall 8.

Records on 30 August 1911 by type
Record type	Records
Highest daily maximum	0
Lowest daily maximum	12
Highest daily minimum	12
Lowest daily minimum	9
Heaviest daily rainfall	8
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 August 1911 by timescale: all-time 0, monthly 3, daily 38.

How Much Records Were Beaten By

32 broken records

Margins by which the 32 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 37.8. Ties are not counted.

Top 20 by Significance

30 August 1911

Top 20 records on 30 August 1911 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 August 1911	Philadelphia City, US	daily rain	58.9 mm (2.3 in)	37.8 mm (1.5 in)	38 years	36 of 100 (Notable)
30 August 1911	Vineland, US	daily rain	53.3 mm (2.1 in)	34.0 mm (1.3 in)	24 years	31 of 100 (Routine)
30 August 1911	Gravenhurst, CA	monthly low min	-0.6 C (30.9 F)	1.2 C (2.2 F)	36 years	26 of 100 (Routine)
30 August 1911	Baltimore Customs House, US	daily rain	43.9 mm (1.7 in)	18.8 mm (0.7 in)	24 years	25 of 100 (Routine)
30 August 1911	World Trade Ctr, US	daily low min	12.2 C (54.0 F)	1.7 C (3.1 F)	36 years	21 of 100 (Routine)
30 August 1911	Trenton 2, US	daily rain	38.4 mm (1.5 in)	18.1 mm (0.7 in)	19 years	18 of 100 (Routine)
30 August 1911	Windsor Riverside, CA	daily low max	18.9 C (66.0 F)	0.5 C (0.9 F)	41 years	17 of 100 (Routine)
30 August 1911	Ny City Cntrl Park, US	monthly low max	16.7 C (62.1 F)	0.5 C (0.9 F)	8 years	17 of 100 (Routine)
30 August 1911	St John's, CA	daily high min	16.7 C (62.1 F)	2.3 C (4.1 F)	17 years	15 of 100 (Routine)
30 August 1911	Regensburg, DE	daily high min	16.6 C (61.9 F)	1.4 C (2.5 F)	27 years	15 of 100 (Routine)
30 August 1911	Atlantic City Marina, US	daily rain	34.0 mm (1.3 in)	9.9 mm (0.39 in)	25 years	15 of 100 (Routine)
30 August 1911	Karlsruhe, DE	daily high min	17.1 C (62.8 F)	0.7 C (1.3 F)	32 years	14 of 100 (Routine)
30 August 1911	Moorestown 4 E, US	daily rain	36.6 mm (1.4 in)	10.2 mm (0.4 in)	19 years	14 of 100 (Routine)
30 August 1911	Chattanooga Wb City, US	daily low max	22.8 C (73.0 F)	1.1 C (2.0 F)	28 years	14 of 100 (Routine)
30 August 1911	Washington, US	daily low max	16.7 C (62.1 F)	2.2 C (4.0 F)	8 years	14 of 100 (Routine)
30 August 1911	Bamberg, DE	daily high min	16.8 C (62.2 F)	0.8 C (1.4 F)	27 years	13 of 100 (Routine)
30 August 1911	Gorlitz, DE	daily high min	16.6 C (61.9 F)	1.4 C (2.5 F)	18 years	13 of 100 (Routine)
30 August 1911	Stratford, CA	daily low min	3.3 C (37.9 F)	1.1 C (2.0 F)	22 years	12 of 100 (Routine)
30 August 1911	Philadelphia City, US	daily low max	17.2 C (63.0 F)	1.1 C (2.0 F)	19 years	11 of 100 (Routine)
30 August 1911	Sandvig, DK	daily high min	16.2 C (61.2 F)	0.1 C (0.2 F)	23 years	10 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

1806 to 1911

Records set or tied on this calendar date in each year from 1806 to 1911. 1911 had 41 records.

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

Records on 08-30 in each year
Year	Records
1806	1
1807	4
1813	1
1814	2
1827	1
1829	1
1835	1
1838	1
1839	1
1845	4
1850	1
1851	2
1855	1
1857	1
1859	1
1864	2
1867	1
1869	1
1870	2
1874	1
1875	2
1876	1
1877	2
1878	1
1880	4
1881	2
1882	1
1884	1
1885	5
1886	7
1887	1
1888	1
1889	2
1890	5
1891	1
1892	3
1893	3
1894	2
1895	1
1896	1
1897	3
1898	3
1899	2
1900	6
1901	8
1902	12
1903	19
1904	13
1905	23
1906	29
1907	8
1908	10
1909	37
1910	15
1911	41
1912	60
1913	22
1914	23
1915	47
1916	17
1917	50
1918	45
1919	17
1920	78
1921	100
1922	65
1923	61
1924	283
1925	167
1926	173
1927	109
1928	327
1929	208
1930	245
1931	192
1932	1,102
1933	274
1934	519
1935	476
1936	191
1937	418
1938	233
1939	401
1940	346
1941	422
1942	385
1943	487
1944	491
1945	455
1946	545
1947	599
1948	519
1949	240
1950	481
1951	1,091
1952	316
1953	1,124
1954	516
1955	417
1956	479
1957	321
1958	363
1959	546
1960	356
1961	573
1962	387
1963	442
1964	422
1965	1,118
1966	500
1967	536
1968	729
1969	522
1970	423
1971	443
1972	579
1973	646
1974	838
1975	664
1976	679
1977	665
1978	825
1979	517
1980	572
1981	684
1982	770
1983	696
1984	1,127
1985	629
1986	1,768
1987	638
1988	881
1989	791
1990	983
1991	938
1992	1,697
1993	1,200
1994	601
1995	940
1996	1,385
1997	960
1998	1,278
1999	864
2000	1,189
2001	750
2002	801
2003	1,226
2004	1,087
2005	1,500
2006	989
2007	1,300
2008	678
2009	1,251
2010	1,552
2011	994
2012	1,087
2013	644
2014	558
2015	1,074
2016	552
2017	924
2018	616
2019	755
2020	671
2021	429
2022	1,077
2023	651
2024	912
2025	324
2026	733

Download the Data

Data for records on 1911-08-30: 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	26
5 to 10	1
10 to 15	1
15 to 20	2
20 to 25	0
25 to 30	0
30 to 35	1
35 to 40	1