Weather Records on 18 May 1915

55 weather records were set or tied worldwide on 18 May 1915. Highest significance: Gorlitz, DE.

Key Facts for 18 May 1915

On 18 May 1915, 55 weather records were set or tied at long-record stations worldwide.
6 were record highs and 39 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 55 daily.
Gorlitz set a daily record precipitation of 36.0 mm (1.4 in) on 18 May 1915.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 445 records.

Record Map

55 stations

55 station records on 18 May 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1915: highest significance records shown on the map
Station	Country	Type	Value	Significance
Gorlitz	Germany	Record daily precipitation	36.0 mm (1.4 in)	53 of 100 (Notable)
Genoa	Italy	Record daily precipitation	53.6 mm (2.1 in)	33 of 100 (Routine)
Escanaba	United States	Record low minimum temperature	-2.2 C (28.0 F)	21 of 100 (Routine)
Oxford	United Kingdom	Record daily precipitation	17.6 mm (0.7 in)	20 of 100 (Routine)
Mundoora	Australia	Record daily precipitation	22.1 mm (0.9 in)	19 of 100 (Routine)
Barrie	Canada	Record low minimum temperature	-1.1 C (30.0 F)	19 of 100 (Routine)
Windsor Riverside	Canada	Record low maximum temperature	10.6 C (51.1 F)	19 of 100 (Routine)
Concordia ASOS	United States	Record low maximum temperature	11.1 C (52.0 F)	19 of 100 (Routine)
Huron Rgnl AP	United States	Record low minimum temperature	-2.8 C (27.0 F)	19 of 100 (Routine)
Port Stanley	Canada	Record low minimum temperature	-1.1 C (30.0 F)	18 of 100 (Routine)
Lawrence	United States	Record daily precipitation	38.9 mm (1.5 in)	18 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record low minimum temperature	-4.4 C (24.1 F)	17 of 100 (Routine)
Port Stanley	Canada	Record low maximum temperature	10.0 C (50.0 F)	17 of 100 (Routine)
Buffalo	United States	Record low maximum temperature	7.2 C (45.0 F)	17 of 100 (Routine)
La Crosse Wb City	United States	Record low minimum temperature	1.7 C (35.1 F)	17 of 100 (Routine)
Dubuque River	United States	Record low minimum temperature	2.8 C (37.0 F)	17 of 100 (Routine)
St Albans	Canada	Record low minimum temperature	-6.1 C (21.0 F)	16 of 100 (Routine)
Southampton	Canada	Record low maximum temperature	6.7 C (44.1 F)	16 of 100 (Routine)
Koebenhavn: Landbohojskolen-1	Denmark	Record low minimum temperature	0.4 C (32.7 F)	16 of 100 (Routine)
Hvar	Croatia	Record high minimum temperature	19.5 C (67.1 F)	16 of 100 (Routine)
Morgantown 1	United States	Record low maximum temperature	12.8 C (55.0 F)	16 of 100 (Routine)
Welland	Canada	Record low minimum temperature	-0.6 C (30.9 F)	15 of 100 (Routine)
London South	Canada	Record low minimum temperature	0.0 C (32.0 F)	15 of 100 (Routine)
Tranebjerg	Denmark	Record low minimum temperature	1.3 C (34.3 F)	15 of 100 (Routine)
Mahackala	Russia	Record high minimum temperature	17.3 C (63.1 F)	15 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record low maximum temperature	10.0 C (50.0 F)	15 of 100 (Routine)
Concordia ASOS	United States	Record low minimum temperature	3.3 C (37.9 F)	15 of 100 (Routine)
Woodstock	Canada	Record low maximum temperature	9.4 C (48.9 F)	14 of 100 (Routine)
Warragul (Carbethon)	Australia	Record daily precipitation	15.5 mm (0.6 in)	13 of 100 (Routine)
Peterborough	Canada	Record low maximum temperature	9.4 C (48.9 F)	13 of 100 (Routine)
Willowmore	South Africa	Record daily precipitation	7.9 mm (0.31 in)	13 of 100 (Routine)
Gravenhurst	Canada	Record low maximum temperature	7.8 C (46.0 F)	12 of 100 (Routine)
Buffalo	United States	Record low minimum temperature	2.2 C (36.0 F)	12 of 100 (Routine)
Port Germein	Australia	Record daily precipitation	16.8 mm (0.7 in)	11 of 100 (Routine)
Minnedosa	Canada	Record low minimum temperature	-4.4 C (24.1 F)	11 of 100 (Routine)
Barrie	Canada	Record low maximum temperature	8.9 C (48.0 F)	11 of 100 (Routine)
Lexington Bluegrass AP	United States	Record low minimum temperature	5.0 C (41.0 F)	11 of 100 (Routine)
Vineland	United States	Record low minimum temperature	5.6 C (42.1 F)	10 of 100 (Routine)
Bathurst Gaol	Australia	Record low maximum temperature	9.7 C (49.5 F)	9 of 100 (Routine)
Milan	Italy	Record daily precipitation	18.6 mm (0.7 in)	9 of 100 (Routine)
Anticosti SW Point	Canada	Record high maximum temperature	16.1 C (61.0 F)	8 of 100 (Routine)
Toledo Blade	United States	Record low maximum temperature	10.0 C (50.0 F)	8 of 100 (Routine)
London South	Canada	Record low maximum temperature	10.6 C (51.1 F)	7 of 100 (Routine)
Halmstad	Sweden	Record low minimum temperature	0.0 C (32.0 F)	7 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low maximum temperature	11.1 C (52.0 F)	6 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high minimum temperature	2.2 C (36.0 F)	6 of 100 (Routine)
Stony Mountain	Canada	Record low minimum temperature	-3.3 C (26.1 F)	5 of 100 (Routine)
Concordia ASOS	United States	Record daily precipitation	28.4 mm (1.1 in)	5 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record low maximum temperature	12.2 C (54.0 F)	4 of 100 (Routine)
Melbourne Regional Office	Australia	Record low maximum temperature	12.1 C (53.8 F)	4 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low minimum temperature	5.0 C (41.0 F)	4 of 100 (Routine)
Arnsberg	Germany	Record high minimum temperature	13.5 C (56.3 F)	3 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	12.2 C (54.0 F)	2 of 100 (Routine)
Kingston Queens U	Canada	Record low maximum temperature	11.1 C (52.0 F)	1 of 100 (Routine)
Nemours (Ghazaouet)	Algeria	Record high minimum temperature	18.0 C (64.4 F)	0 of 100 (Routine)

Counts by Type and Timescale

55 records

Records set or tied on 18 May 1915 by type: Highest daily maximum 1, Lowest daily maximum 19, Highest daily minimum 5, Lowest daily minimum 20, Heaviest daily rainfall 10.

Records on 18 May 1915 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	19
Highest daily minimum	5
Lowest daily minimum	20
Heaviest daily rainfall	10
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 May 1915 by timescale: all-time 0, monthly 0, daily 55.

How Much Records Were Beaten By

48 broken records

Margins by which the 48 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 27.4. Ties are not counted.

Top 20 by Significance

18 May 1915

Top 20 records on 18 May 1915 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1915	Gorlitz, DE	daily rain	36.0 mm (1.4 in)	27.4 mm (1.1 in)	34 years	53 of 100 (Notable)
18 May 1915	Genoa, IT	daily rain	53.6 mm (2.1 in)	22.9 mm (0.9 in)	13 years	33 of 100 (Routine)
18 May 1915	Escanaba, US	daily low min	-2.2 C (28.0 F)	2.2 C (4.0 F)	40 years	21 of 100 (Routine)
18 May 1915	Oxford, GB	daily rain	17.6 mm (0.7 in)	0.6 mm (0.02 in)	66 years	20 of 100 (Routine)
18 May 1915	Mundoora, AU	daily rain	22.1 mm (0.9 in)	9.4 mm (0.37 in)	20 years	19 of 100 (Routine)
18 May 1915	Barrie, CA	daily low min	-1.1 C (30.0 F)	0.5 C (0.9 F)	43 years	19 of 100 (Routine)
18 May 1915	Windsor Riverside, CA	daily low max	10.6 C (51.1 F)	1.1 C (2.0 F)	45 years	19 of 100 (Routine)
18 May 1915	Concordia ASOS, US	daily low max	11.1 C (52.0 F)	5.0 C (9.0 F)	26 years	19 of 100 (Routine)
18 May 1915	Huron Rgnl AP, US	daily low min	-2.8 C (27.0 F)	3.9 C (7.0 F)	26 years	19 of 100 (Routine)
18 May 1915	Port Stanley, CA	daily low min	-1.1 C (30.0 F)	1.7 C (3.1 F)	39 years	18 of 100 (Routine)
18 May 1915	Lawrence, US	daily rain	38.9 mm (1.5 in)	2.1 mm (0.08 in)	41 years	18 of 100 (Routine)
18 May 1915	Winnipeg St Johns Coll, CA	daily low min	-4.4 C (24.1 F)	3.3 C (5.9 F)	24 years	17 of 100 (Routine)
18 May 1915	Port Stanley, CA	daily low max	10.0 C (50.0 F)	2.2 C (4.0 F)	26 years	17 of 100 (Routine)
18 May 1915	Buffalo, US	daily low max	7.2 C (45.0 F)	0.6 C (1.1 F)	40 years	17 of 100 (Routine)
18 May 1915	La Crosse Wb City, US	daily low min	1.7 C (35.1 F)	2.7 C (4.9 F)	27 years	17 of 100 (Routine)
18 May 1915	Dubuque River, US	daily low min	2.8 C (37.0 F)	2.8 C (5.0 F)	28 years	17 of 100 (Routine)
18 May 1915	St Albans, CA	daily low min	-6.1 C (21.0 F)	5.0 C (9.0 F)	15 years	16 of 100 (Routine)
18 May 1915	Southampton, CA	daily low max	6.7 C (44.1 F)	0.5 C (0.9 F)	40 years	16 of 100 (Routine)
18 May 1915	Koebenhavn: Landbohojskolen-1, DK	daily low min	0.4 C (32.7 F)	0.4 C (0.7 F)	39 years	16 of 100 (Routine)
18 May 1915	Hvar, HR	daily high min	19.5 C (67.1 F)	0.3 C (0.5 F)	36 years	16 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

1796 to 1915

Records set or tied on this calendar date in each year from 1796 to 1915. 1915 had 55 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 1915-05-18: 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 5	43
5 to 10	3
10 to 15	0
15 to 20	0
20 to 25	1
25 to 30	1