Weather Records on 17 May 1915

53 weather records were set or tied worldwide on 17 May 1915. Highest significance: Melbourne Regional Office, AU.

Key Facts for 17 May 1915

On 17 May 1915, 53 weather records were set or tied at long-record stations worldwide.
4 were record highs and 29 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 52 daily.
Melbourne Regional Office set a daily record low maximum temperature of 10.2 C (50.4 F) on 17 May 1915.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 437 records.

Record Map

53 stations

53 station records on 17 May 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 May 1915: highest significance records shown on the map
Station	Country	Type	Value	Significance
Melbourne Regional Office	Australia	Record low maximum temperature	10.2 C (50.4 F)	25 of 100 (Routine)
Lorne Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	22 of 100 (Routine)
Przhevalsk	Kyrgyzstan	Record daily precipitation	26.9 mm (1.1 in)	22 of 100 (Routine)
Woods Point	Australia	Record daily precipitation	72.4 mm (2.9 in)	21 of 100 (Routine)
Fraserburg	South Africa	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	9.6 C (49.3 F)	20 of 100 (Routine)
Worcester	South Africa	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Clanwilliam (Pol)	South Africa	Record daily precipitation	11.7 mm (0.5 in)	18 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low maximum temperature	13.3 C (55.9 F)	17 of 100 (Routine)
Toledo Blade	United States	Record low maximum temperature	11.1 C (52.0 F)	17 of 100 (Routine)
Wagga Wagga (Kooringal)	Australia	Record low maximum temperature	11.9 C (53.4 F)	16 of 100 (Routine)
Hawkesdale (Post Office)	Australia	Record daily precipitation	14.0 mm (0.6 in)	16 of 100 (Routine)
St John's	Canada	Record daily precipitation	26.2 mm (1.0 in)	16 of 100 (Routine)
Dubuque River	United States	Record low minimum temperature	3.3 C (37.9 F)	16 of 100 (Routine)
Hamilton	Australia	Record daily precipitation	23.1 mm (0.9 in)	15 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record daily precipitation	20.8 mm (0.8 in)	14 of 100 (Routine)
Berlin-Dahlem	Germany	Record low minimum temperature	1.6 C (34.9 F)	14 of 100 (Routine)
Kerkwerve	Netherlands	Record daily precipitation	10.6 mm (0.4 in)	14 of 100 (Routine)
Burlington	United States	Record low maximum temperature	8.9 C (48.0 F)	14 of 100 (Routine)
Warburton	Australia	Record daily precipitation	39.4 mm (1.6 in)	13 of 100 (Routine)
Huron Rgnl AP	United States	Record low minimum temperature	-0.6 C (30.9 F)	13 of 100 (Routine)
Bathurst Gaol	Australia	Record low maximum temperature	10.6 C (51.1 F)	12 of 100 (Routine)
Qu'appelle	Canada	Record low minimum temperature	-2.2 C (28.0 F)	12 of 100 (Routine)
Milwaukee Wb City	United States	Record low minimum temperature	0.6 C (33.1 F)	12 of 100 (Routine)
Escanaba	United States	Record low minimum temperature	-1.1 C (30.0 F)	12 of 100 (Routine)
Stonecliffe	Canada	Record low maximum temperature	9.4 C (48.9 F)	11 of 100 (Routine)
Winnemucca AP	United States	Record daily precipitation	4.6 mm (0.18 in)	11 of 100 (Routine)
Concordia ASOS	United States	Record low minimum temperature	3.3 C (37.9 F)	10 of 100 (Routine)
Mount Bute	Australia	Record daily precipitation	14.0 mm (0.6 in)	9 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record low maximum temperature	8.9 C (48.0 F)	9 of 100 (Routine)
Port Arthur	Canada	Record low maximum temperature	7.8 C (46.0 F)	9 of 100 (Routine)
Ottawa	Canada	Record low maximum temperature	9.4 C (48.9 F)	8 of 100 (Routine)
Escanaba	United States	Record low maximum temperature	6.1 C (43.0 F)	8 of 100 (Routine)
Echunga Golf Course	Australia	Record daily precipitation	25.4 mm (1.0 in)	7 of 100 (Routine)
Peterborough	Canada	Record low maximum temperature	10.6 C (51.1 F)	7 of 100 (Routine)
Stellenbosch (Tnk)	South Africa	Record daily precipitation	22.9 mm (0.9 in)	7 of 100 (Routine)
Concord	United States	Record low maximum temperature	7.8 C (46.0 F)	7 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record daily snowfall	0.5 cm (0.2 in)	6 of 100 (Routine)
Macarthur (Glenhuntly)	Australia	Record daily precipitation	19.1 mm (0.8 in)	5 of 100 (Routine)
Milwaukee Wb City	United States	Record low maximum temperature	7.2 C (45.0 F)	4 of 100 (Routine)
Minnedosa	Canada	Record low maximum temperature	8.9 C (48.0 F)	3 of 100 (Routine)
Ny City Cntrl Park	United States	Record low maximum temperature	11.1 C (52.0 F)	3 of 100 (Routine)
Balmoral (Post Office)	Australia	Record daily precipitation	21.1 mm (0.8 in)	2 of 100 (Routine)
Santa Fe	United States	Record high minimum temperature	11.1 C (52.0 F)	2 of 100 (Routine)
Wilmington Wb City	United States	Record high maximum temperature	32.8 C (91.0 F)	2 of 100 (Routine)
Wilmington Wb City	United States	Record high minimum temperature	21.7 C (71.1 F)	2 of 100 (Routine)
La Crosse Wb City	United States	Record low minimum temperature	1.1 C (34.0 F)	2 of 100 (Routine)
Lexington Bluegrass AP	United States	Record low maximum temperature	14.4 C (57.9 F)	2 of 100 (Routine)
Barrie	Canada	Record low maximum temperature	10.6 C (51.1 F)	1 of 100 (Routine)
Southampton	Canada	Record low maximum temperature	6.7 C (44.1 F)	1 of 100 (Routine)
Hambantota	Sri Lanka	Record high minimum temperature	26.4 C (79.5 F)	1 of 100 (Routine)
World Trade Ctr	United States	Record low maximum temperature	12.2 C (54.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

53 records

Records set or tied on 17 May 1915 by type: Highest daily maximum 1, Lowest daily maximum 21, Highest daily minimum 3, Lowest daily minimum 8, Heaviest daily rainfall 19, Heaviest daily snowfall 1.

Records on 17 May 1915 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	21
Highest daily minimum	3
Lowest daily minimum	8
Heaviest daily rainfall	19
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 17 May 1915 by timescale: all-time 0, monthly 1, daily 52.

How Much Records Were Beaten By

41 broken records

Margins by which the 41 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 11.7. Ties are not counted.

Top 20 by Significance

17 May 1915

Top 20 records on 17 May 1915 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 May 1915	Melbourne Regional Office, AU	daily low max	10.2 C (50.4 F)	2.4 C (4.3 F)	36 years	25 of 100 (Routine)
17 May 1915	Lorne Post Office, AU	daily rain	26.7 mm (1.1 in)	11.5 mm (0.5 in)	16 years	22 of 100 (Routine)
17 May 1915	Przhevalsk, KG	daily rain	26.9 mm (1.1 in)	11.7 mm (0.5 in)	8 years	22 of 100 (Routine)
17 May 1915	Woods Point, AU	monthly rain	72.4 mm (2.9 in)	3.1 mm (0.12 in)	21 years	21 of 100 (Routine)
17 May 1915	Fraserburg, ZA	daily rain	10.2 mm (0.4 in)	8.2 mm (0.32 in)	27 years	20 of 100 (Routine)
17 May 1915	Dublin Phoenix Park, IE	daily rain	16.5 mm (0.6 in)	8.2 mm (0.32 in)	15 years	20 of 100 (Routine)
17 May 1915	Cape Otway Lighthouse, AU	daily low max	9.6 C (49.3 F)	3.2 C (5.8 F)	15 years	20 of 100 (Routine)
17 May 1915	Worcester, ZA	daily rain	13.2 mm (0.5 in)	5.8 mm (0.23 in)	32 years	20 of 100 (Routine)
17 May 1915	Clanwilliam (Pol), ZA	daily rain	11.7 mm (0.5 in)	3.3 mm (0.13 in)	32 years	18 of 100 (Routine)
17 May 1915	Forbes (Camp Street), AU	daily low max	13.3 C (55.9 F)	0.6 C (1.1 F)	40 years	17 of 100 (Routine)
17 May 1915	Toledo Blade, US	daily low max	11.1 C (52.0 F)	3.9 C (7.0 F)	24 years	17 of 100 (Routine)
17 May 1915	Wagga Wagga (Kooringal), AU	daily low max	11.9 C (53.4 F)	0.3 C (0.5 F)	42 years	16 of 100 (Routine)
17 May 1915	Hawkesdale (Post Office), AU	daily rain	14.0 mm (0.6 in)	3.3 mm (0.13 in)	24 years	16 of 100 (Routine)
17 May 1915	St John's, CA	daily rain	26.2 mm (1.0 in)	7.1 mm (0.28 in)	15 years	16 of 100 (Routine)
17 May 1915	Dubuque River, US	daily low min	3.3 C (37.9 F)	0.6 C (1.1 F)	36 years	16 of 100 (Routine)
17 May 1915	Hamilton, AU	daily rain	23.1 mm (0.9 in)	4.0 mm (0.16 in)	17 years	15 of 100 (Routine)
17 May 1915	Cape Otway Lighthouse, AU	daily rain	20.8 mm (0.8 in)	3.0 mm (0.12 in)	17 years	14 of 100 (Routine)
17 May 1915	Berlin-Dahlem, DE	daily low min	1.6 C (34.9 F)	0.4 C (0.7 F)	32 years	14 of 100 (Routine)
17 May 1915	Kerkwerve, NL	daily rain	10.6 mm (0.4 in)	4.8 mm (0.19 in)	4 years	14 of 100 (Routine)
17 May 1915	Burlington, US	daily low max	8.9 C (48.0 F)	1.1 C (2.0 F)	30 years	14 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

1802 to 1915

Records set or tied on this calendar date in each year from 1802 to 1915. 1915 had 53 records.

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

Records on 05-17 in each year
Year	Records
1802	2
1803	1
1808	1
1816	1
1834	1
1837	1
1839	1
1847	2
1848	1
1851	1
1853	1
1855	1
1858	1
1859	1
1861	2
1862	2
1863	2
1864	1
1871	2
1872	2
1873	2
1874	4
1877	1
1878	1
1879	2
1880	1
1881	1
1882	2
1883	3
1885	1
1887	1
1888	2
1889	3
1891	8
1892	4
1893	3
1895	8
1896	2
1897	3
1898	6
1899	7
1900	12
1901	2
1902	3
1903	9
1904	12
1905	10
1906	22
1907	10
1908	5
1909	33
1910	16
1911	30
1912	16
1913	24
1914	24
1915	53
1916	49
1917	18
1918	56
1919	35
1920	46
1921	50
1922	30
1923	95
1924	80
1925	326
1926	133
1927	264
1928	127
1929	168
1930	421
1931	201
1932	288
1933	365
1934	373
1935	341
1936	270
1937	183
1938	340
1939	285
1940	338
1941	408
1942	589
1943	855
1944	521
1945	799
1946	586
1947	249
1948	412
1949	544
1950	371
1951	373
1952	777
1953	441
1954	298
1955	570
1956	1,166
1957	469
1958	331
1959	488
1960	402
1961	291
1962	1,325
1963	368
1964	417
1965	462
1966	489
1967	644
1968	564
1969	638
1970	711
1971	723
1972	610
1973	1,016
1974	1,302
1975	365
1976	426
1977	1,078
1978	872
1979	459
1980	768
1981	940
1982	476
1983	1,326
1984	925
1985	561
1986	921
1987	1,054
1988	1,096
1989	1,307
1990	1,135
1991	1,237
1992	1,025
1993	495
1994	858
1995	1,734
1996	1,706
1997	1,619
1998	1,080
1999	795
2000	825
2001	960
2002	964
2003	1,127
2004	769
2005	784
2006	1,522
2007	742
2008	1,309
2009	1,050
2010	880
2011	1,483
2012	711
2013	739
2014	1,062
2015	824
2016	741
2017	1,302
2018	726
2019	686
2020	496
2021	443
2022	479
2023	385
2024	566
2025	928
2026	745

Download the Data

Data for records on 1915-05-17: 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 2	21
2 to 4	10
4 to 6	4
6 to 8	2
8 to 10	2
10 to 12	2