Weather Records on 17 June 1917

68 weather records were set or tied worldwide on 17 June 1917. Highest significance: Portland, US.

Key Facts for 17 June 1917

On 17 June 1917, 68 weather records were set or tied at long-record stations worldwide.
35 were record highs and 29 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 64 daily.
Portland set a monthly record daily precipitation of 105.2 mm (4.1 in) on 17 June 1917.
Across 162 earlier years (1807 to 2026) the same calendar date averaged 433 records.

Record Map

68 stations

68 station records on 17 June 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 June 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Portland	United States	Record daily precipitation	105.2 mm (4.1 in)	48 of 100 (Notable)
Uccle	Belgium	Record high maximum temperature	31.2 C (88.2 F)	32 of 100 (Routine)
Uppsala_Aut	Sweden	Record high minimum temperature	18.2 C (64.8 F)	28 of 100 (Routine)
St John's	Canada	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Sandvig	Denmark	Record high maximum temperature	28.3 C (82.9 F)	20 of 100 (Routine)
Yarmouth	Canada	Record high minimum temperature	13.3 C (55.9 F)	19 of 100 (Routine)
Sandvig	Denmark	Record high minimum temperature	17.3 C (63.1 F)	19 of 100 (Routine)
Sheffield	United Kingdom	Record high minimum temperature	17.2 C (63.0 F)	18 of 100 (Routine)
Welland	Canada	Record low minimum temperature	5.0 C (41.0 F)	17 of 100 (Routine)
Wilmington Wb City	United States	Record low minimum temperature	14.4 C (57.9 F)	17 of 100 (Routine)
Arnsberg	Germany	Record high maximum temperature	30.8 C (87.4 F)	16 of 100 (Routine)
Visby_Flygplats	Sweden	Record high minimum temperature	17.2 C (63.0 F)	16 of 100 (Routine)
Greenville Dwtn AP	United States	Record low minimum temperature	10.0 C (50.0 F)	16 of 100 (Routine)
Jonkoping	Sweden	Record high minimum temperature	17.0 C (62.6 F)	15 of 100 (Routine)
Bjuraker	Sweden	Record high minimum temperature	15.0 C (59.0 F)	15 of 100 (Routine)
Chatham	Canada	Record high minimum temperature	17.2 C (63.0 F)	14 of 100 (Routine)
Koebenhavn: Landbohojskolen-1	Denmark	Record high maximum temperature	29.5 C (85.1 F)	14 of 100 (Routine)
Kristianstad	Sweden	Record high maximum temperature	31.0 C (87.8 F)	14 of 100 (Routine)
Skara 1	Sweden	Record high minimum temperature	15.5 C (59.9 F)	14 of 100 (Routine)
Sacramento 5 ESE	United States	Record high maximum temperature	38.3 C (100.9 F)	14 of 100 (Routine)
Vastervik	Sweden	Record high maximum temperature	30.0 C (86.0 F)	13 of 100 (Routine)
Gavle	Sweden	Record high minimum temperature	13.0 C (55.4 F)	13 of 100 (Routine)
Burlington	United States	Record low maximum temperature	15.0 C (59.0 F)	13 of 100 (Routine)
Vastervik	Sweden	Record high minimum temperature	17.0 C (62.6 F)	12 of 100 (Routine)
Orebro	Sweden	Record high minimum temperature	17.0 C (62.6 F)	12 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	34.4 C (93.9 F)	12 of 100 (Routine)
Philadelphia City	United States	Record low minimum temperature	12.2 C (54.0 F)	12 of 100 (Routine)
Bonang	Australia	Record daily precipitation	21.6 mm (0.9 in)	11 of 100 (Routine)
Wrixum/Fohr	Germany	Record high maximum temperature	30.0 C (86.0 F)	11 of 100 (Routine)
Stornoway Airport	United Kingdom	Record high minimum temperature	11.1 C (52.0 F)	11 of 100 (Routine)
Little Rock St Capitol	United States	Record low minimum temperature	12.8 C (55.0 F)	11 of 100 (Routine)
Wrixum/Fohr	Germany	Record high minimum temperature	17.3 C (63.1 F)	10 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record high minimum temperature	18.0 C (64.4 F)	10 of 100 (Routine)
Anticosti West Point	Canada	Record daily precipitation	12.2 mm (0.5 in)	9 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record low minimum temperature	1.7 C (35.1 F)	9 of 100 (Routine)
Visby_Flygplats	Sweden	Record high maximum temperature	27.4 C (81.3 F)	9 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record low minimum temperature	7.2 C (45.0 F)	8 of 100 (Routine)
Northfield	United States	Record low maximum temperature	15.6 C (60.1 F)	8 of 100 (Routine)
Fredericton Unb	Canada	Record daily precipitation	20.1 mm (0.8 in)	6 of 100 (Routine)
Innsbruck	Austria	Record high maximum temperature	30.5 C (86.9 F)	5 of 100 (Routine)
St Albans	Canada	Record high maximum temperature	36.1 C (97.0 F)	5 of 100 (Routine)
Stockholm	Sweden	Record high minimum temperature	19.0 C (66.2 F)	5 of 100 (Routine)
Morgantown 1	United States	Record low minimum temperature	4.4 C (39.9 F)	5 of 100 (Routine)
Cobar Post Office	Australia	Record low maximum temperature	10.6 C (51.1 F)	4 of 100 (Routine)
Guelph Oac	Canada	Record low minimum temperature	2.8 C (37.0 F)	4 of 100 (Routine)
Lindsay	Canada	Record low minimum temperature	2.2 C (36.0 F)	4 of 100 (Routine)
Chattanooga Wb City	United States	Record low minimum temperature	12.8 C (55.0 F)	4 of 100 (Routine)
Kingston Queens U	Canada	Record low minimum temperature	6.1 C (43.0 F)	3 of 100 (Routine)
Port Dover	Canada	Record low minimum temperature	5.6 C (42.1 F)	3 of 100 (Routine)
Guelph Oac	Canada	Record low maximum temperature	19.4 C (66.9 F)	3 of 100 (Routine)
Lakefield	Canada	Record low minimum temperature	6.1 C (43.0 F)	3 of 100 (Routine)
Sydney	Canada	Record high minimum temperature	14.4 C (57.9 F)	3 of 100 (Routine)
Charlottetown	Canada	Record high minimum temperature	15.0 C (59.0 F)	3 of 100 (Routine)
Montgomery Wb City	United States	Record low minimum temperature	17.2 C (63.0 F)	3 of 100 (Routine)
Buffalo	United States	Record low maximum temperature	14.4 C (57.9 F)	3 of 100 (Routine)
Sacramento 5 ESE	United States	Record high minimum temperature	16.7 C (62.1 F)	3 of 100 (Routine)
Nordby (Fano)	Denmark	Record high maximum temperature	27.0 C (80.6 F)	2 of 100 (Routine)
Jonkoping	Sweden	Record high maximum temperature	29.5 C (85.1 F)	2 of 100 (Routine)
Baltimore Customs House	United States	Record low minimum temperature	12.8 C (55.0 F)	2 of 100 (Routine)
Washington	United States	Record low minimum temperature	11.1 C (52.0 F)	2 of 100 (Routine)

Counts by Type and Timescale

68 records

Records set or tied on 17 June 1917 by type: Highest daily maximum 15, Lowest daily maximum 7, Highest daily minimum 20, Lowest daily minimum 22, Heaviest daily rainfall 4.

Records on 17 June 1917 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	7
Highest daily minimum	20
Lowest daily minimum	22
Heaviest daily rainfall	4
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 June 1917 by timescale: all-time 0, monthly 4, daily 64.

How Much Records Were Beaten By

46 broken records

Margins by which the 46 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 32.0. Ties are not counted.

Top 20 by Significance

17 June 1917

Top 20 records on 17 June 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 June 1917	Portland, US	monthly rain	105.2 mm (4.1 in)	32.0 mm (1.3 in)	11 years	48 of 100 (Notable)
17 June 1917	Uccle, BE	daily high max	31.2 C (88.2 F)	0.5 C (0.9 F)	77 years	32 of 100 (Routine)
17 June 1917	Uppsala_Aut, SE	monthly high min	18.2 C (64.8 F)	1.8 C (3.2 F)	20 years	28 of 100 (Routine)
17 June 1917	St John's, CA	daily high min	16.7 C (62.1 F)	3.4 C (6.1 F)	34 years	23 of 100 (Routine)
17 June 1917	Sandvig, DK	daily high max	28.3 C (82.9 F)	3.3 C (5.9 F)	20 years	20 of 100 (Routine)
17 June 1917	Yarmouth, CA	daily high min	13.3 C (55.9 F)	1.6 C (2.9 F)	30 years	19 of 100 (Routine)
17 June 1917	Sandvig, DK	daily high min	17.3 C (63.1 F)	2.1 C (3.8 F)	20 years	19 of 100 (Routine)
17 June 1917	Sheffield, GB	monthly high min	17.2 C (63.0 F)	0.4 C (0.7 F)	13 years	18 of 100 (Routine)
17 June 1917	Welland, CA	daily low min	5.0 C (41.0 F)	1.7 C (3.1 F)	31 years	17 of 100 (Routine)
17 June 1917	Wilmington Wb City, US	daily low min	14.4 C (57.9 F)	0.6 C (1.1 F)	36 years	17 of 100 (Routine)
17 June 1917	Arnsberg, DE	daily high max	30.8 C (87.4 F)	2.8 C (5.0 F)	23 years	16 of 100 (Routine)
17 June 1917	Visby_Flygplats, SE	daily high min	17.2 C (63.0 F)	2.2 C (4.0 F)	20 years	16 of 100 (Routine)
17 June 1917	Greenville Dwtn AP, US	daily low min	10.0 C (50.0 F)	2.8 C (5.0 F)	14 years	16 of 100 (Routine)
17 June 1917	Jonkoping, SE	daily high min	17.0 C (62.6 F)	2.0 C (3.6 F)	20 years	15 of 100 (Routine)
17 June 1917	Bjuraker, SE	daily high min	15.0 C (59.0 F)	3.0 C (5.4 F)	12 years	15 of 100 (Routine)
17 June 1917	Chatham, CA	daily high min	17.2 C (63.0 F)	0.5 C (0.9 F)	30 years	14 of 100 (Routine)
17 June 1917	Koebenhavn: Landbohojskolen-1, DK	daily high max	29.5 C (85.1 F)	1.6 C (2.9 F)	20 years	14 of 100 (Routine)
17 June 1917	Kristianstad, SE	daily high max	31.0 C (87.8 F)	2.0 C (3.6 F)	20 years	14 of 100 (Routine)
17 June 1917	Skara 1, SE	daily high min	15.5 C (59.9 F)	1.5 C (2.7 F)	23 years	14 of 100 (Routine)
17 June 1917	Sacramento 5 ESE, US	daily high max	38.3 C (100.9 F)	2.7 C (4.9 F)	17 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

1807 to 1917

Records set or tied on this calendar date in each year from 1807 to 1917. 1917 had 68 records.

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

Records on 06-17 in each year
Year	Records
1807	2
1810	1
1811	1
1830	1
1837	1
1839	1
1840	1
1845	1
1846	1
1848	1
1855	1
1866	2
1867	1
1869	2
1872	1
1873	1
1874	1
1875	1
1878	1
1879	1
1882	3
1883	1
1884	1
1885	3
1886	3
1887	2
1888	2
1889	1
1890	1
1892	3
1894	1
1895	7
1896	3
1897	2
1898	1
1899	2
1900	6
1901	9
1902	4
1903	8
1904	4
1905	12
1906	22
1907	20
1908	26
1909	13
1910	9
1911	22
1912	47
1913	45
1914	101
1915	20
1916	103
1917	68
1918	36
1919	58
1920	79
1921	52
1922	59
1923	110
1924	80
1925	136
1926	193
1927	357
1928	137
1929	238
1930	354
1931	194
1932	257
1933	413
1934	310
1935	338
1936	484
1937	284
1938	245
1939	1,206
1940	454
1941	250
1942	286
1943	289
1944	623
1945	614
1946	419
1947	336
1948	452
1949	571
1950	506
1951	208
1952	752
1953	455
1954	488
1955	570
1956	375
1957	761
1958	597
1959	507
1960	511
1961	1,319
1962	323
1963	383
1964	794
1965	763
1966	464
1967	402
1968	403
1969	700
1970	435
1971	407
1972	437
1973	701
1974	932
1975	453
1976	430
1977	410
1978	589
1979	646
1980	754
1981	1,201
1982	642
1983	728
1984	644
1985	693
1986	912
1987	1,078
1988	712
1989	870
1990	932
1991	1,094
1992	795
1993	684
1994	1,186
1995	1,350
1996	750
1997	1,056
1998	1,661
1999	1,260
2000	1,460
2001	678
2002	1,148
2003	647
2004	839
2005	914
2006	724
2007	839
2008	656
2009	739
2010	1,104
2011	922
2012	792
2013	610
2014	685
2015	1,113
2016	874
2017	692
2018	1,050
2019	551
2020	914
2021	1,980
2022	1,209
2023	617
2024	839
2025	593
2026	743

Download the Data

Data for records on 1917-06-17: 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 5	44
5 to 10	1
10 to 15	0
15 to 20	0
20 to 25	0
25 to 30	0
30 to 35	1