Weather Records on 17 May 1931

201 weather records were set or tied worldwide on 17 May 1931. Highest significance: Weeping Water, US.

Key Facts for 17 May 1931

On 17 May 1931, 201 weather records were set or tied at long-record stations worldwide.
127 were record highs and 19 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 197 daily.
Weeping Water set a daily record precipitation of 41.9 mm (1.6 in) on 17 May 1931.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 436 records.

Record Map

201 stations

201 station records on 17 May 1931 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 May 1931: highest significance records shown on the map
Station	Country	Type	Value	Significance
Weeping Water	United States	Record daily precipitation	41.9 mm (1.6 in)	41 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record daily precipitation	50.3 mm (2.0 in)	29 of 100 (Routine)
Watertown Wwtp	United States	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Wooster Exp STN	United States	Record daily precipitation	26.2 mm (1.0 in)	26 of 100 (Routine)
Setif	Algeria	Record high minimum temperature	16.0 C (60.8 F)	25 of 100 (Routine)
Yerevan	Armenia	Record low minimum temperature	1.8 C (35.2 F)	24 of 100 (Routine)
Fichtelberg	Germany	Record high minimum temperature	13.5 C (56.3 F)	23 of 100 (Routine)
Mohall	United States	Record high minimum temperature	16.1 C (61.0 F)	22 of 100 (Routine)
Briksdal	Norway	Record daily precipitation	31.3 mm (1.2 in)	21 of 100 (Routine)
Sotchi	Russia	Record low minimum temperature	8.2 C (46.8 F)	21 of 100 (Routine)
Kalmar_D	Sweden	Record daily precipitation	22.7 mm (0.9 in)	20 of 100 (Routine)
Maristova	Norway	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Halmstad	Sweden	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Geilo	Norway	Record daily precipitation	23.1 mm (0.9 in)	20 of 100 (Routine)
Olands Norra Udde	Sweden	Record daily precipitation	20.9 mm (0.8 in)	20 of 100 (Routine)
Sandvig	Denmark	Record daily precipitation	15.9 mm (0.6 in)	20 of 100 (Routine)
West Terschelling	Netherlands	Record daily precipitation	14.3 mm (0.6 in)	20 of 100 (Routine)
Ueckermunde	Germany	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Skjak	Norway	Record daily precipitation	6.5 mm (0.26 in)	20 of 100 (Routine)
Falsterbo	Sweden	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Hano_A	Sweden	Record daily precipitation	12.4 mm (0.5 in)	20 of 100 (Routine)
Nesbyen	Norway	Record daily precipitation	14.9 mm (0.6 in)	20 of 100 (Routine)
Sveg	Sweden	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Nikolaev	Ukraine	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Willcox	United States	Record daily precipitation	6.6 mm (0.26 in)	20 of 100 (Routine)
Ventspils	Latvia	Record daily precipitation	11.8 mm (0.5 in)	20 of 100 (Routine)
Kristianstad	Sweden	Record daily precipitation	12.3 mm (0.5 in)	20 of 100 (Routine)
Junsele	Sweden	Record daily precipitation	15.4 mm (0.6 in)	20 of 100 (Routine)
Kirchdorf/Poel	Germany	Record high minimum temperature	13.9 C (57.0 F)	20 of 100 (Routine)
Hoorn	Netherlands	Record daily precipitation	15.9 mm (0.6 in)	20 of 100 (Routine)
Blanco	United States	Record high maximum temperature	36.7 C (98.1 F)	20 of 100 (Routine)
Berlin-Dahlem	Germany	Record high maximum temperature	29.0 C (84.2 F)	19 of 100 (Routine)
Gorlitz	Germany	Record high maximum temperature	27.0 C (80.6 F)	19 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record high minimum temperature	8.2 C (46.8 F)	19 of 100 (Routine)
Schwerin	Germany	Record high minimum temperature	13.9 C (57.0 F)	18 of 100 (Routine)
Magdeburg	Germany	Record high minimum temperature	15.2 C (59.4 F)	18 of 100 (Routine)
Blair	United States	Record high minimum temperature	23.3 C (73.9 F)	18 of 100 (Routine)
Delaware	United States	Record daily precipitation	20.6 mm (0.8 in)	18 of 100 (Routine)
Quatsino	Canada	Record daily precipitation	23.9 mm (0.9 in)	17 of 100 (Routine)
Plauen	Germany	Record high maximum temperature	28.5 C (83.3 F)	17 of 100 (Routine)
Waren	Germany	Record high minimum temperature	12.5 C (54.5 F)	17 of 100 (Routine)
Sarna	Sweden	Record daily precipitation	11.7 mm (0.5 in)	17 of 100 (Routine)
San Diego Wbo	United States	Record high minimum temperature	16.7 C (62.1 F)	17 of 100 (Routine)
Norwich	United States	Record high minimum temperature	20.6 C (69.1 F)	17 of 100 (Routine)
Biskra	Algeria	Record high maximum temperature	38.0 C (100.4 F)	16 of 100 (Routine)
Potsdam	Germany	Record high minimum temperature	15.7 C (60.3 F)	16 of 100 (Routine)
Nord Odal	Norway	Record daily precipitation	18.0 mm (0.7 in)	16 of 100 (Routine)
Yalta	Ukraine	Record daily precipitation	10.2 mm (0.4 in)	16 of 100 (Routine)
Frankfort Downtown	United States	Record high maximum temperature	32.8 C (91.0 F)	16 of 100 (Routine)
Greensburg	United States	Record high minimum temperature	20.0 C (68.0 F)	16 of 100 (Routine)
Whitefish Pt	United States	Record high minimum temperature	7.8 C (46.0 F)	16 of 100 (Routine)
Parrsboro	Canada	Record low maximum temperature	8.9 C (48.0 F)	15 of 100 (Routine)
Potsdam	Germany	Record high maximum temperature	30.8 C (87.4 F)	15 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record high maximum temperature	28.4 C (83.1 F)	15 of 100 (Routine)
Leeuwarden_1	Netherlands	Record daily precipitation	11.7 mm (0.5 in)	15 of 100 (Routine)
Tunhovd	Norway	Record daily precipitation	13.5 mm (0.5 in)	15 of 100 (Routine)
Tunis	Tunisia	Record high maximum temperature	33.0 C (91.4 F)	15 of 100 (Routine)
Madison	United States	Record high maximum temperature	34.4 C (93.9 F)	15 of 100 (Routine)
Neosho	United States	Record high maximum temperature	32.8 C (91.0 F)	15 of 100 (Routine)
Franklin	United States	Record daily precipitation	40.6 mm (1.6 in)	15 of 100 (Routine)

Counts by Type and Timescale

201 records

Records set or tied on 17 May 1931 by type: Highest daily maximum 68, Lowest daily maximum 8, Highest daily minimum 59, Lowest daily minimum 11, Heaviest daily rainfall 55.

Records on 17 May 1931 by type
Record type	Records
Highest daily maximum	68
Lowest daily maximum	8
Highest daily minimum	59
Lowest daily minimum	11
Heaviest daily rainfall	55
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 May 1931 by timescale: all-time 0, monthly 4, daily 197.

How Much Records Were Beaten By

153 broken records

Margins by which the 153 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 35.3. Ties are not counted.

Top 20 by Significance

17 May 1931

Top 20 records on 17 May 1931 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 May 1931	Weeping Water, US	daily rain	41.9 mm (1.6 in)	35.3 mm (1.4 in)	34 years	41 of 100 (Notable)
17 May 1931	Isabela Substn, PR	daily rain	50.3 mm (2.0 in)	27.4 mm (1.1 in)	29 years	29 of 100 (Routine)
17 May 1931	Watertown Wwtp, US	daily rain	30.5 mm (1.2 in)	18.3 mm (0.7 in)	18 years	28 of 100 (Routine)
17 May 1931	Wooster Exp STN, US	daily rain	26.2 mm (1.0 in)	17.8 mm (0.7 in)	12 years	26 of 100 (Routine)
17 May 1931	Setif, DZ	daily high min	16.0 C (60.8 F)	1.9 C (3.4 F)	50 years	25 of 100 (Routine)
17 May 1931	Yerevan, AM	monthly low min	1.8 C (35.2 F)	0.9 C (1.6 F)	26 years	24 of 100 (Routine)
17 May 1931	Fichtelberg, DE	daily high min	13.5 C (56.3 F)	3.8 C (6.8 F)	36 years	23 of 100 (Routine)
17 May 1931	Mohall, US	daily high min	16.1 C (61.0 F)	6.1 C (11.0 F)	29 years	22 of 100 (Routine)
17 May 1931	Briksdal, NO	daily rain	31.3 mm (1.2 in)	8.7 mm (0.34 in)	16 years	21 of 100 (Routine)
17 May 1931	Sotchi, RU	daily low min	8.2 C (46.8 F)	1.6 C (2.9 F)	38 years	21 of 100 (Routine)
17 May 1931	Kalmar_D, SE	daily rain	22.7 mm (0.9 in)	16.2 mm (0.6 in)	43 years	20 of 100 (Routine)
17 May 1931	Maristova, NO	daily rain	15.5 mm (0.6 in)	12.5 mm (0.5 in)	32 years	20 of 100 (Routine)
17 May 1931	Halmstad, SE	daily rain	14.5 mm (0.6 in)	5.6 mm (0.22 in)	70 years	20 of 100 (Routine)
17 May 1931	Geilo, NO	daily rain	23.1 mm (0.9 in)	14.0 mm (0.6 in)	8 years	20 of 100 (Routine)
17 May 1931	Olands Norra Udde, SE	daily rain	20.9 mm (0.8 in)	10.4 mm (0.4 in)	4 years	20 of 100 (Routine)
17 May 1931	Sandvig, DK	daily rain	15.9 mm (0.6 in)	10.9 mm (0.4 in)	4 years	20 of 100 (Routine)
17 May 1931	West Terschelling, NL	daily rain	14.3 mm (0.6 in)	4.1 mm (0.16 in)	49 years	20 of 100 (Routine)
17 May 1931	Ueckermunde, DE	daily rain	13.5 mm (0.5 in)	6.4 mm (0.25 in)	32 years	20 of 100 (Routine)
17 May 1931	Skjak, NO	daily rain	6.5 mm (0.26 in)	4.3 mm (0.17 in)	26 years	20 of 100 (Routine)
17 May 1931	Falsterbo, SE	daily rain	10.2 mm (0.4 in)	3.3 mm (0.13 in)	39 years	20 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 1931

Records set or tied on this calendar date in each year from 1802 to 1931. 1931 had 201 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 1931-05-17: 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 5	132
5 to 10	12
10 to 15	4
15 to 20	3
20 to 25	0
25 to 30	1
30 to 35	0
35 to 40	1