Weather Records on 17 April 1931

216 weather records were set or tied worldwide on 17 April 1931. Highest significance: Ai-Petri, UA.

Key Facts for 17 April 1931

On 17 April 1931, 216 weather records were set or tied at long-record stations worldwide.
115 were record highs and 12 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 214 daily.
Ai-Petri set a daily record precipitation of 36.6 mm (1.4 in) on 17 April 1931.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 454 records.

Record Map

216 stations

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

Weather records on 17 April 1931: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ai-Petri	Ukraine	Record daily precipitation	36.6 mm (1.4 in)	48 of 100 (Notable)
Lady Grey (Pol)	South Africa	Record daily precipitation	45.0 mm (1.8 in)	45 of 100 (Notable)
Uthamapalayam	India	Record daily precipitation	59.7 mm (2.4 in)	38 of 100 (Notable)
Gospic	Croatia	Record daily precipitation	61.7 mm (2.4 in)	36 of 100 (Notable)
Vanur	India	Record daily precipitation	25.1 mm (1.0 in)	32 of 100 (Routine)
Socorro	United States	Record daily precipitation	29.7 mm (1.2 in)	31 of 100 (Routine)
Hvar	Croatia	Record daily precipitation	27.0 mm (1.1 in)	27 of 100 (Routine)
Ft Pierce	United States	Record daily precipitation	48.8 mm (1.9 in)	24 of 100 (Routine)
Taos	United States	Record high minimum temperature	5.6 C (42.1 F)	21 of 100 (Routine)
Deming	United States	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Ft Bayard 4W	United States	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Lowestoft	United Kingdom	Record daily precipitation	11.8 mm (0.5 in)	20 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record daily precipitation	14.3 mm (0.6 in)	20 of 100 (Routine)
Kerkwerve	Netherlands	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Bhimunipatnam	India	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Kamennaja-Step	Russia	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Bowie	United States	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Syfergat (Sar)	South Africa	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Biamble	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Durham	United Kingdom	Record daily precipitation	9.0 mm (0.35 in)	20 of 100 (Routine)
Roswell Muni AP	United States	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Spring Ridge	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Batemans Bay Post Office	Australia	Record daily precipitation	137.4 mm (5.4 in)	20 of 100 (Routine)
Brocken	Germany	Record snow depth	110.0 cm (43.3 in)	20 of 100 (Routine)
Nikolaev	Ukraine	Record daily precipitation	6.0 mm (0.24 in)	20 of 100 (Routine)
Denair 3 NNE	United States	Record high maximum temperature	33.9 C (93.0 F)	20 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record low minimum temperature	3.1 C (37.6 F)	19 of 100 (Routine)
Jamkhandi	India	Record daily precipitation	17.8 mm (0.7 in)	19 of 100 (Routine)
Ottawa	Canada	Record high maximum temperature	21.1 C (70.0 F)	18 of 100 (Routine)
Gronbaek-Allingskovgard	Denmark	Record daily precipitation	11.7 mm (0.5 in)	18 of 100 (Routine)
Rotenburg (Wumme)	Germany	Record daily precipitation	13.1 mm (0.5 in)	18 of 100 (Routine)
Lemon Cove	United States	Record high minimum temperature	15.6 C (60.1 F)	18 of 100 (Routine)
Oconto 4 W	United States	Record high minimum temperature	8.3 C (46.9 F)	18 of 100 (Routine)
Sacramento 5 ESE	United States	Record high maximum temperature	28.9 C (84.0 F)	18 of 100 (Routine)
Davangire	India	Record daily precipitation	17.0 mm (0.7 in)	17 of 100 (Routine)
Honnali	India	Record daily precipitation	22.6 mm (0.9 in)	17 of 100 (Routine)
Ram/Udayagiri	India	Record daily precipitation	35.6 mm (1.4 in)	17 of 100 (Routine)
Crescent City 3 NNW	United States	Record high maximum temperature	25.6 C (78.1 F)	17 of 100 (Routine)
Stockton 2	United States	Record high maximum temperature	32.2 C (90.0 F)	17 of 100 (Routine)
Harrisville	United States	Record high minimum temperature	6.1 C (43.0 F)	17 of 100 (Routine)
New London	United States	Record high maximum temperature	26.7 C (80.1 F)	17 of 100 (Routine)
Cambray	United States	Record daily precipitation	6.4 mm (0.25 in)	17 of 100 (Routine)
Las Vegas 2 NW	United States	Record daily precipitation	7.9 mm (0.31 in)	17 of 100 (Routine)
Badagara	India	Record daily precipitation	15.7 mm (0.6 in)	16 of 100 (Routine)
Devala	India	Record daily precipitation	22.9 mm (0.9 in)	16 of 100 (Routine)
Claremont Pomona Clg	United States	Record high maximum temperature	36.7 C (98.1 F)	16 of 100 (Routine)
Booneville	United States	Record high maximum temperature	31.1 C (88.0 F)	16 of 100 (Routine)
Wittstock-Rote Muhle	Germany	Record daily precipitation	13.5 mm (0.5 in)	15 of 100 (Routine)
Malakapuram	India	Record daily precipitation	5.6 mm (0.22 in)	15 of 100 (Routine)
Arni	India	Record daily precipitation	6.6 mm (0.26 in)	15 of 100 (Routine)
Omalur	India	Record daily precipitation	25.4 mm (1.0 in)	15 of 100 (Routine)
Ai-Petri	Ukraine	Record low maximum temperature	-2.5 C (27.5 F)	15 of 100 (Routine)
Camp Crook	United States	Record high maximum temperature	27.2 C (81.0 F)	15 of 100 (Routine)
Manitowoc	United States	Record high minimum temperature	10.0 C (50.0 F)	15 of 100 (Routine)
St Cloud State Clg	United States	Record high minimum temperature	12.8 C (55.0 F)	15 of 100 (Routine)
Williston Sloulin Fld	United States	Record high maximum temperature	27.8 C (82.0 F)	15 of 100 (Routine)
Branxton (Dalwood Vineyard)	Australia	Record daily precipitation	26.9 mm (1.1 in)	14 of 100 (Routine)
Pudukkottai	India	Record daily precipitation	55.1 mm (2.2 in)	14 of 100 (Routine)
Karambakkudi	India	Record daily precipitation	21.8 mm (0.9 in)	14 of 100 (Routine)
Iron Mtn-Kingsford Wwtp	United States	Record high minimum temperature	5.6 C (42.1 F)	14 of 100 (Routine)

Counts by Type and Timescale

216 records

Records set or tied on 17 April 1931 by type: Highest daily maximum 88, Lowest daily maximum 5, Highest daily minimum 27, Lowest daily minimum 7, Heaviest daily rainfall 88, Deepest snow cover 1.

Records on 17 April 1931 by type
Record type	Records
Highest daily maximum	88
Lowest daily maximum	5
Highest daily minimum	27
Lowest daily minimum	7
Heaviest daily rainfall	88
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 17 April 1931 by timescale: all-time 0, monthly 2, daily 214.

How Much Records Were Beaten By

167 broken records

Margins by which the 167 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 400.0. Ties are not counted.

Top 20 by Significance

17 April 1931

Top 20 records on 17 April 1931 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 1931	Ai-Petri, UA	daily rain	36.6 mm (1.4 in)	23.4 mm (0.9 in)	24 years	48 of 100 (Notable)
17 April 1931	Lady Grey (Pol), ZA	daily rain	45.0 mm (1.8 in)	25.4 mm (1.0 in)	40 years	45 of 100 (Notable)
17 April 1931	Uthamapalayam, IN	daily rain	59.7 mm (2.4 in)	36.8 mm (1.4 in)	8 years	38 of 100 (Notable)
17 April 1931	Gospic, HR	daily rain	61.7 mm (2.4 in)	28.0 mm (1.1 in)	33 years	36 of 100 (Notable)
17 April 1931	Vanur, IN	daily rain	25.1 mm (1.0 in)	22.6 mm (0.9 in)	25 years	32 of 100 (Routine)
17 April 1931	Socorro, US	daily rain	29.7 mm (1.2 in)	15.7 mm (0.6 in)	18 years	31 of 100 (Routine)
17 April 1931	Hvar, HR	daily rain	27.0 mm (1.1 in)	4.2 mm (0.17 in)	54 years	27 of 100 (Routine)
17 April 1931	Ft Pierce, US	daily rain	48.8 mm (1.9 in)	24.9 mm (1.0 in)	10 years	24 of 100 (Routine)
17 April 1931	Taos, US	daily high min	5.6 C (42.1 F)	3.9 C (7.0 F)	20 years	21 of 100 (Routine)
17 April 1931	Deming, US	daily rain	16.5 mm (0.6 in)	16.5 mm (0.6 in)	36 years	20 of 100 (Routine)
17 April 1931	Ft Bayard 4W, US	daily rain	14.0 mm (0.6 in)	14.0 mm (0.6 in)	32 years	20 of 100 (Routine)
17 April 1931	Lowestoft, GB	daily rain	11.8 mm (0.5 in)	8.3 mm (0.33 in)	4 years	20 of 100 (Routine)
17 April 1931	Bremen-Seefahrtschule, DE	daily rain	14.3 mm (0.6 in)	3.5 mm (0.14 in)	36 years	20 of 100 (Routine)
17 April 1931	Kerkwerve, NL	daily rain	14.0 mm (0.6 in)	4.5 mm (0.18 in)	33 years	20 of 100 (Routine)
17 April 1931	Bhimunipatnam, IN	daily rain	17.8 mm (0.7 in)	17.8 mm (0.7 in)	29 years	20 of 100 (Routine)
17 April 1931	Kamennaja-Step, RU	daily rain	8.1 mm (0.32 in)	6.4 mm (0.25 in)	2 years	20 of 100 (Routine)
17 April 1931	Bowie, US	daily rain	7.4 mm (0.29 in)	5.9 mm (0.23 in)	29 years	20 of 100 (Routine)
17 April 1931	Syfergat (Sar), ZA	daily rain	22.9 mm (0.9 in)	11.2 mm (0.4 in)	22 years	20 of 100 (Routine)
17 April 1931	Biamble, AU	daily rain	17.8 mm (0.7 in)	5.6 mm (0.22 in)	41 years	20 of 100 (Routine)
17 April 1931	Durham, GB	daily rain	9.0 mm (0.35 in)	2.9 mm (0.11 in)	25 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

1799 to 1931

Records set or tied on this calendar date in each year from 1799 to 1931. 1931 had 216 records.

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

Records on 04-17 in each year
Year	Records
1799	1
1807	1
1808	1
1815	1
1817	1
1818	1
1819	1
1823	1
1825	1
1830	1
1835	3
1837	1
1845	1
1847	2
1851	1
1852	3
1853	1
1854	1
1855	1
1857	1
1858	1
1862	1
1865	2
1868	1
1873	4
1874	1
1875	3
1877	4
1878	2
1880	2
1889	1
1890	2
1891	2
1892	4
1894	5
1895	1
1896	5
1897	6
1898	3
1899	1
1900	2
1901	4
1902	4
1903	5
1904	19
1905	11
1906	14
1907	16
1908	38
1909	7
1910	29
1911	33
1912	27
1913	20
1914	83
1915	30
1916	30
1917	32
1918	35
1919	39
1920	87
1921	148
1922	96
1923	71
1924	74
1925	103
1926	140
1927	256
1928	308
1929	145
1930	238
1931	216
1932	615
1933	261
1934	234
1935	374
1936	308
1937	439
1938	564
1939	618
1940	337
1941	460
1942	415
1943	285
1944	334
1945	475
1946	492
1947	461
1948	622
1949	439
1950	293
1951	441
1952	529
1953	818
1954	650
1955	394
1956	486
1957	277
1958	702
1959	434
1960	553
1961	667
1962	597
1963	702
1964	766
1965	411
1966	409
1967	935
1968	745
1969	728
1970	547
1971	924
1972	546
1973	589
1974	244
1975	666
1976	1,630
1977	906
1978	620
1979	810
1980	675
1981	621
1982	965
1983	1,365
1984	720
1985	917
1986	997
1987	960
1988	1,082
1989	638
1990	1,065
1991	614
1992	1,105
1993	847
1994	1,047
1995	1,211
1996	1,044
1997	889
1998	1,795
1999	1,730
2000	1,082
2001	1,013
2002	2,284
2003	1,037
2004	761
2005	572
2006	1,430
2007	863
2008	842
2009	779
2010	606
2011	982
2012	920
2013	1,796
2014	913
2015	813
2016	977
2017	469
2018	1,585
2019	458
2020	1,165
2021	701
2022	831
2023	628
2024	690
2025	1,058
2026	838

Download the Data

Data for records on 1931-04-17: 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 50	166
50 to 100	0
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1