Weather Records on 1 September 1915

46 weather records were set or tied worldwide on 1 September 1915. Highest significance: Tallinn, EE.

Key Facts for 1 September 1915

On 1 September 1915, 46 weather records were set or tied at long-record stations worldwide.
6 were record highs and 26 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 45 daily.
Tallinn set a daily record precipitation of 40.6 mm (1.6 in) on 1 September 1915.
Across 161 earlier years (1797 to 2026) the same calendar date averaged 444 records.

Record Map

46 stations

46 station records on 1 September 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 September 1915: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tallinn	Estonia	Record daily precipitation	40.6 mm (1.6 in)	46 of 100 (Notable)
Hoorn	Netherlands	Record daily precipitation	32.5 mm (1.3 in)	45 of 100 (Notable)
Hoofddorp	Netherlands	Record daily precipitation	33.5 mm (1.3 in)	43 of 100 (Notable)
Scheveningen	Netherlands	Record daily precipitation	27.2 mm (1.1 in)	36 of 100 (Notable)
Oran-Hopital Militaire	Algeria	Record high maximum temperature	34.0 C (93.2 F)	30 of 100 (Routine)
Sveg	Sweden	Record daily precipitation	26.4 mm (1.0 in)	30 of 100 (Routine)
Junsele	Sweden	Record daily precipitation	28.8 mm (1.1 in)	29 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record daily precipitation	34.2 mm (1.3 in)	28 of 100 (Routine)
Bjuraker	Sweden	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Dartmoor	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Port Arthur	Canada	Record high maximum temperature	28.9 C (84.0 F)	19 of 100 (Routine)
Wilmington Wb City	United States	Record low maximum temperature	22.2 C (72.0 F)	19 of 100 (Routine)
Innsbruck	Austria	Record low minimum temperature	5.0 C (41.0 F)	18 of 100 (Routine)
Halmstad	Sweden	Record daily precipitation	18.9 mm (0.7 in)	18 of 100 (Routine)
Houston Wb City	United States	Record low minimum temperature	17.2 C (63.0 F)	17 of 100 (Routine)
Inverell Comparison	Australia	Record high maximum temperature	24.4 C (75.9 F)	16 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record high maximum temperature	23.4 C (74.1 F)	16 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record low minimum temperature	8.0 C (46.4 F)	16 of 100 (Routine)
Harnosand	Sweden	Record daily precipitation	36.0 mm (1.4 in)	14 of 100 (Routine)
Calgary Int'l A	Canada	Record high minimum temperature	10.0 C (50.0 F)	11 of 100 (Routine)
Philadelphia City	United States	Record low maximum temperature	20.0 C (68.0 F)	11 of 100 (Routine)
Hambantota	Sri Lanka	Record high minimum temperature	25.4 C (77.7 F)	10 of 100 (Routine)
Zagreb-Gric	Croatia	Record low minimum temperature	10.0 C (50.0 F)	10 of 100 (Routine)
Hvar	Croatia	Record low maximum temperature	23.3 C (73.9 F)	10 of 100 (Routine)
Middletown 4 W	United States	Record low minimum temperature	7.2 C (45.0 F)	10 of 100 (Routine)
Kargopol	Russia	Record daily precipitation	10.7 mm (0.4 in)	9 of 100 (Routine)
Anticosti SW Point	Canada	Record low minimum temperature	0.0 C (32.0 F)	8 of 100 (Routine)
Velikie Luki	Russia	Record low maximum temperature	12.6 C (54.7 F)	8 of 100 (Routine)
Little Rock St Capitol	United States	Record low minimum temperature	13.9 C (57.0 F)	8 of 100 (Routine)
Vineland	United States	Record low maximum temperature	19.4 C (66.9 F)	8 of 100 (Routine)
Olympia Priest Pt Park	United States	Record daily precipitation	10.7 mm (0.4 in)	8 of 100 (Routine)
Freiburg	Germany	Record low minimum temperature	5.3 C (41.5 F)	7 of 100 (Routine)
Cet Central England	United Kingdom	Record low maximum temperature	13.7 C (56.7 F)	7 of 100 (Routine)
Little Rock St Capitol	United States	Record low maximum temperature	25.0 C (77.0 F)	7 of 100 (Routine)
Cape May 2 NW	United States	Record low minimum temperature	12.2 C (54.0 F)	7 of 100 (Routine)
Sveg	Sweden	Record low maximum temperature	7.5 C (45.5 F)	5 of 100 (Routine)
Paarl (Tnk)	South Africa	Record daily precipitation	18.3 mm (0.7 in)	4 of 100 (Routine)
Baltimore Customs House	United States	Record low minimum temperature	13.3 C (55.9 F)	3 of 100 (Routine)
Stockholm	Sweden	Record low maximum temperature	11.0 C (51.8 F)	2 of 100 (Routine)
Durham	United Kingdom	Record low maximum temperature	12.2 C (54.0 F)	2 of 100 (Routine)
Kiev	Ukraine	Record low minimum temperature	7.0 C (44.6 F)	2 of 100 (Routine)
Middletown 4 W	United States	Record low maximum temperature	20.0 C (68.0 F)	2 of 100 (Routine)
Blue Hill Coop	United States	Record low maximum temperature	15.0 C (59.0 F)	2 of 100 (Routine)
Blue Hill Coop	United States	Record low minimum temperature	9.4 C (48.9 F)	2 of 100 (Routine)
Lexington Bluegrass AP	United States	Record low minimum temperature	11.1 C (52.0 F)	2 of 100 (Routine)
Cape May 2 NW	United States	Record low maximum temperature	21.1 C (70.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

46 records

Records set or tied on 1 September 1915 by type: Highest daily maximum 4, Lowest daily maximum 13, Highest daily minimum 2, Lowest daily minimum 13, Heaviest daily rainfall 14.

Records on 1 September 1915 by type
Record type	Records
Highest daily maximum	4
Lowest daily maximum	13
Highest daily minimum	2
Lowest daily minimum	13
Heaviest daily rainfall	14
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 September 1915 by timescale: all-time 0, monthly 1, daily 45.

How Much Records Were Beaten By

37 broken records

Margins by which the 37 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 23.1. Ties are not counted.

Top 20 by Significance

1 September 1915

Top 20 records on 1 September 1915 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 September 1915	Tallinn, EE	daily rain	40.6 mm (1.6 in)	23.1 mm (0.9 in)	8 years	46 of 100 (Notable)
1 September 1915	Hoorn, NL	daily rain	32.5 mm (1.3 in)	23.0 mm (0.9 in)	6 years	45 of 100 (Notable)
1 September 1915	Hoofddorp, NL	daily rain	33.5 mm (1.3 in)	18.0 mm (0.7 in)	27 years	43 of 100 (Notable)
1 September 1915	Scheveningen, NL	daily rain	27.2 mm (1.1 in)	16.9 mm (0.7 in)	21 years	36 of 100 (Notable)
1 September 1915	Oran-Hopital Militaire, DZ	daily high max	34.0 C (93.2 F)	1.5 C (2.7 F)	61 years	30 of 100 (Routine)
1 September 1915	Sveg, SE	daily rain	26.4 mm (1.0 in)	8.0 mm (0.31 in)	38 years	30 of 100 (Routine)
1 September 1915	Junsele, SE	monthly rain	28.8 mm (1.1 in)	3.8 mm (0.15 in)	29 years	29 of 100 (Routine)
1 September 1915	Oestersund-Froesoen, SE	daily rain	34.2 mm (1.3 in)	9.6 mm (0.38 in)	15 years	28 of 100 (Routine)
1 September 1915	Bjuraker, SE	daily rain	19.1 mm (0.8 in)	7.1 mm (0.28 in)	30 years	20 of 100 (Routine)
1 September 1915	Dartmoor, AU	daily rain	13.2 mm (0.5 in)	7.9 mm (0.31 in)	13 years	20 of 100 (Routine)
1 September 1915	Port Arthur, CA	daily high max	28.9 C (84.0 F)	3.3 C (5.9 F)	31 years	19 of 100 (Routine)
1 September 1915	Wilmington Wb City, US	daily low max	22.2 C (72.0 F)	2.8 C (5.0 F)	24 years	19 of 100 (Routine)
1 September 1915	Innsbruck, AT	daily low min	5.0 C (41.0 F)	2.0 C (3.6 F)	32 years	18 of 100 (Routine)
1 September 1915	Halmstad, SE	daily rain	18.9 mm (0.7 in)	2.5 mm (0.10 in)	30 years	18 of 100 (Routine)
1 September 1915	Houston Wb City, US	daily low min	17.2 C (63.0 F)	1.7 C (3.1 F)	30 years	17 of 100 (Routine)
1 September 1915	Inverell Comparison, AU	daily high max	24.4 C (75.9 F)	0.5 C (0.9 F)	39 years	16 of 100 (Routine)
1 September 1915	Nuwara Eliya, LK	daily high max	23.4 C (74.1 F)	0.9 C (1.6 F)	29 years	16 of 100 (Routine)
1 September 1915	Nuwara Eliya, LK	daily low min	8.0 C (46.4 F)	0.3 C (0.5 F)	39 years	16 of 100 (Routine)
1 September 1915	Harnosand, SE	daily rain	36.0 mm (1.4 in)	3.3 mm (0.13 in)	22 years	14 of 100 (Routine)
1 September 1915	Calgary Int'l A, CA	daily high min	10.0 C (50.0 F)	1.1 C (2.0 F)	20 years	11 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 1915

Records set or tied on this calendar date in each year from 1797 to 1915. 1915 had 46 records.

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

Records on 09-01 in each year
Year	Records
1797	1
1806	1
1819	1
1827	1
1831	1
1838	1
1851	1
1853	1
1854	1
1857	1
1858	1
1859	1
1860	2
1861	1
1865	1
1866	1
1867	2
1869	3
1871	1
1873	1
1876	2
1877	2
1878	3
1879	2
1881	5
1883	1
1886	3
1887	3
1888	2
1890	2
1892	2
1894	3
1897	4
1898	10
1899	3
1900	2
1901	14
1902	5
1903	16
1904	9
1905	6
1906	26
1907	14
1908	26
1909	34
1910	22
1911	16
1912	47
1913	32
1914	23
1915	46
1916	16
1917	24
1918	31
1919	19
1920	31
1921	46
1922	67
1923	75
1924	210
1925	127
1926	182
1927	136
1928	166
1929	324
1930	264
1931	233
1932	550
1933	622
1934	654
1935	584
1936	385
1937	502
1938	373
1939	303
1940	333
1941	497
1942	532
1943	578
1944	377
1945	497
1946	642
1947	555
1948	460
1949	1,102
1950	849
1951	668
1952	644
1953	937
1954	407
1955	413
1956	504
1957	320
1958	427
1959	519
1960	408
1961	531
1962	368
1963	416
1964	621
1965	657
1966	596
1967	1,263
1968	604
1969	493
1970	502
1971	464
1972	518
1973	874
1974	895
1975	939
1976	627
1977	500
1978	809
1979	459
1980	671
1981	649
1982	642
1983	1,167
1984	619
1985	901
1986	964
1987	909
1988	651
1989	823
1990	749
1991	687
1992	1,010
1993	1,122
1994	1,291
1995	1,165
1996	823
1997	1,161
1998	1,159
1999	925
2000	1,613
2001	904
2002	778
2003	1,254
2004	827
2005	901
2006	1,157
2007	976
2008	1,204
2009	1,003
2010	1,313
2011	1,071
2012	874
2013	775
2014	515
2015	661
2016	522
2017	686
2018	399
2019	800
2020	689
2021	751
2022	1,016
2023	720
2024	938
2025	359
2026	521

Download the Data

Data for records on 1915-09-01: 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	29
5 to 10	4
10 to 15	0
15 to 20	2
20 to 25	2