Weather Records on 17 May 1927

264 weather records were set or tied worldwide on 17 May 1927. Highest significance: Skara 1, SE.

Key Facts for 17 May 1927

On 17 May 1927, 264 weather records were set or tied at long-record stations worldwide.
75 were record highs and 95 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 7 monthly and 257 daily.
Skara 1 set a daily record precipitation of 31.2 mm (1.2 in) on 17 May 1927.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 435 records.

Record Map

264 stations

264 station records on 17 May 1927 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 May 1927: highest significance records shown on the map
Station	Country	Type	Value	Significance
Skara 1	Sweden	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Geilo	Norway	Record snow depth	130.0 cm (51.2 in)	43 of 100 (Notable)
Mount Barker	Australia	Record daily precipitation	44.7 mm (1.8 in)	39 of 100 (Notable)
Beachport	Australia	Record daily precipitation	34.8 mm (1.4 in)	38 of 100 (Notable)
Bjornholt	Norway	Record daily precipitation	35.1 mm (1.4 in)	34 of 100 (Routine)
Stockport	Australia	Record daily precipitation	26.2 mm (1.0 in)	30 of 100 (Routine)
Postmyr I Drangedal	Norway	Record daily precipitation	34.0 mm (1.3 in)	30 of 100 (Routine)
Saddleworth	Australia	Record daily precipitation	30.0 mm (1.2 in)	29 of 100 (Routine)
Steveston	Canada	Record daily precipitation	36.8 mm (1.4 in)	28 of 100 (Routine)
Tarlee	Australia	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Boras	Sweden	Record daily precipitation	26.0 mm (1.0 in)	27 of 100 (Routine)
Port Washington	United States	Record daily precipitation	30.0 mm (1.2 in)	25 of 100 (Routine)
Port Lincoln (Big Swamp)	Australia	Record daily precipitation	29.5 mm (1.2 in)	24 of 100 (Routine)
Macclesfield	Australia	Record daily precipitation	37.6 mm (1.5 in)	24 of 100 (Routine)
Blackfoot Fire Dept	United States	Record high minimum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Algiers-Ville/Universite	Algeria	Record high maximum temperature	30.0 C (86.0 F)	23 of 100 (Routine)
Beetaloo Reservoir Old Site	Australia	Record daily precipitation	28.4 mm (1.1 in)	23 of 100 (Routine)
Bridgewater	Australia	Record daily precipitation	45.2 mm (1.8 in)	23 of 100 (Routine)
Lifjell	Norway	Record daily precipitation	27.4 mm (1.1 in)	23 of 100 (Routine)
Gjerstad I Aust-Agder	Norway	Record daily precipitation	32.2 mm (1.3 in)	23 of 100 (Routine)
Castle Rock	United States	Record high maximum temperature	32.8 C (91.0 F)	23 of 100 (Routine)
Colby	United States	Record high maximum temperature	38.9 C (102.0 F)	23 of 100 (Routine)
Lakin	United States	Record high maximum temperature	40.6 C (105.1 F)	23 of 100 (Routine)
Harrogate	Australia	Record daily precipitation	25.4 mm (1.0 in)	22 of 100 (Routine)
Stirling	Australia	Record daily precipitation	30.7 mm (1.2 in)	22 of 100 (Routine)
Garden City	United States	Record high maximum temperature	39.4 C (102.9 F)	22 of 100 (Routine)
Middlesboro Fire Dept	United States	Record low minimum temperature	-0.6 C (30.9 F)	21 of 100 (Routine)
Imperial	United States	Record high maximum temperature	37.8 C (100.0 F)	21 of 100 (Routine)
Santa Fe	United States	Record high maximum temperature	26.7 C (80.1 F)	21 of 100 (Routine)
Marion	United States	Record low maximum temperature	8.3 C (46.9 F)	21 of 100 (Routine)
Beaufort Wwtp	United States	Record low minimum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Elko Rgnl AP	United States	Record high minimum temperature	11.7 C (53.1 F)	21 of 100 (Routine)
Kamloops	Canada	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Cape Willoughby	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Kapunda	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Eudunda	Australia	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Kapunda Water Works	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Yorketown	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Landsort	Sweden	Record daily precipitation	21.2 mm (0.8 in)	20 of 100 (Routine)
Robe Comparison	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Pakri	Estonia	Record daily precipitation	13.4 mm (0.5 in)	20 of 100 (Routine)
Tumby Bay (Warratta Vale)	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Hoyleton	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Laura	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Terowie	Australia	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Parnu	Estonia	Record daily precipitation	12.6 mm (0.5 in)	20 of 100 (Routine)
Roseworthy Agric College	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Biri	Norway	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Rjukan	Norway	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Varberg	Sweden	Record daily precipitation	12.1 mm (0.5 in)	20 of 100 (Routine)
Ardrossan (Winulta)	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Hedal I Valdres	Norway	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Cleve	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Farrell Flat	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Port Clinton (Yararoo)	Australia	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Swift Current	Canada	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Hoburg	Sweden	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Lake Moraine	United States	Record high maximum temperature	21.1 C (70.0 F)	20 of 100 (Routine)
Auburn	Australia	Record daily precipitation	24.4 mm (1.0 in)	19 of 100 (Routine)
Roseworthy	Australia	Record daily precipitation	17.3 mm (0.7 in)	19 of 100 (Routine)

Counts by Type and Timescale

264 records

Records set or tied on 17 May 1927 by type: Highest daily maximum 56, Lowest daily maximum 22, Highest daily minimum 19, Lowest daily minimum 73, Heaviest daily rainfall 91, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 17 May 1927 by type
Record type	Records
Highest daily maximum	56
Lowest daily maximum	22
Highest daily minimum	19
Lowest daily minimum	73
Heaviest daily rainfall	91
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 17 May 1927 by timescale: all-time 0, monthly 7, daily 257.

How Much Records Were Beaten By

229 broken records

Margins by which the 229 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 1020.0. Ties are not counted.

Top 20 by Significance

17 May 1927

Top 20 records on 17 May 1927 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 May 1927	Skara 1, SE	daily rain	31.2 mm (1.2 in)	18.4 mm (0.7 in)	16 years	45 of 100 (Notable)
17 May 1927	Geilo, NO	daily snow depth	130.0 cm (51.2 in)	102.0 cm (40.2 in)	0 years	43 of 100 (Notable)
17 May 1927	Mount Barker, AU	daily rain	44.7 mm (1.8 in)	23.6 mm (0.9 in)	26 years	39 of 100 (Notable)
17 May 1927	Beachport, AU	daily rain	34.8 mm (1.4 in)	16.3 mm (0.6 in)	35 years	38 of 100 (Notable)
17 May 1927	Bjornholt, NO	daily rain	35.1 mm (1.4 in)	15.6 mm (0.6 in)	35 years	34 of 100 (Routine)
17 May 1927	Stockport, AU	daily rain	26.2 mm (1.0 in)	12.0 mm (0.5 in)	17 years	30 of 100 (Routine)
17 May 1927	Postmyr I Drangedal, NO	daily rain	34.0 mm (1.3 in)	18.0 mm (0.7 in)	17 years	30 of 100 (Routine)
17 May 1927	Saddleworth, AU	daily rain	30.0 mm (1.2 in)	9.2 mm (0.36 in)	38 years	29 of 100 (Routine)
17 May 1927	Steveston, CA	monthly rain	36.8 mm (1.4 in)	6.3 mm (0.25 in)	14 years	28 of 100 (Routine)
17 May 1927	Tarlee, AU	daily rain	25.4 mm (1.0 in)	6.9 mm (0.27 in)	38 years	27 of 100 (Routine)
17 May 1927	Boras, SE	daily rain	26.0 mm (1.0 in)	9.5 mm (0.37 in)	22 years	27 of 100 (Routine)
17 May 1927	Port Washington, US	daily rain	30.0 mm (1.2 in)	14.8 mm (0.6 in)	28 years	25 of 100 (Routine)
17 May 1927	Port Lincoln (Big Swamp), AU	daily rain	29.5 mm (1.2 in)	8.4 mm (0.33 in)	27 years	24 of 100 (Routine)
17 May 1927	Macclesfield, AU	daily rain	37.6 mm (1.5 in)	7.6 mm (0.30 in)	38 years	24 of 100 (Routine)
17 May 1927	Blackfoot Fire Dept, US	daily high min	15.6 C (60.1 F)	5.6 C (10.1 F)	25 years	24 of 100 (Routine)
17 May 1927	Algiers-Ville/Universite, DZ	daily high max	30.0 C (86.0 F)	3.0 C (5.4 F)	33 years	23 of 100 (Routine)
17 May 1927	Beetaloo Reservoir Old Site, AU	daily rain	28.4 mm (1.1 in)	10.6 mm (0.4 in)	16 years	23 of 100 (Routine)
17 May 1927	Bridgewater, AU	daily rain	45.2 mm (1.8 in)	13.2 mm (0.5 in)	28 years	23 of 100 (Routine)
17 May 1927	Lifjell, NO	daily rain	27.4 mm (1.1 in)	14.4 mm (0.6 in)	4 years	23 of 100 (Routine)
17 May 1927	Gjerstad I Aust-Agder, NO	daily rain	32.2 mm (1.3 in)	16.7 mm (0.7 in)	6 years	23 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 1927

Records set or tied on this calendar date in each year from 1802 to 1927. 1927 had 264 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 1927-05-17: 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 200	228
200 to 400	0
400 to 600	0
600 to 800	0
800 to 1000	0
1000 to 1200	1