Weather Records on 17 April 1934

234 weather records were set or tied worldwide on 17 April 1934. Highest significance: Helmond, NL.

Key Facts for 17 April 1934

On 17 April 1934, 234 weather records were set or tied at long-record stations worldwide.
149 were record highs and 4 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 37 monthly and 197 daily.
Helmond set a monthly record daily precipitation of 32.5 mm (1.3 in) on 17 April 1934.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 454 records.

Record Map

234 stations

234 station records on 17 April 1934 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 1934: highest significance records shown on the map
Station	Country	Type	Value	Significance
Helmond	Netherlands	Record daily precipitation	32.5 mm (1.3 in)	48 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record high maximum temperature	27.6 C (81.7 F)	45 of 100 (Notable)
Jena Sternwarte	Germany	Record high minimum temperature	11.8 C (53.2 F)	41 of 100 (Notable)
Bologna	Italy	Record high minimum temperature	18.0 C (64.4 F)	41 of 100 (Notable)
Hypoluxo	United States	Record daily precipitation	82.8 mm (3.3 in)	41 of 100 (Notable)
Heerde	Netherlands	Record daily precipitation	29.5 mm (1.2 in)	39 of 100 (Notable)
Ponnani	India	Record daily precipitation	77.2 mm (3.0 in)	33 of 100 (Routine)
Armagh	United Kingdom	Record high minimum temperature	7.8 C (46.0 F)	33 of 100 (Routine)
Karlsruhe	Germany	Record high maximum temperature	27.6 C (81.7 F)	31 of 100 (Routine)
Hohenpeissenberg	Germany	Record high minimum temperature	13.4 C (56.1 F)	31 of 100 (Routine)
Altastenberg	Germany	Record high minimum temperature	13.8 C (56.8 F)	31 of 100 (Routine)
Arnsberg	Germany	Record high minimum temperature	12.7 C (54.9 F)	31 of 100 (Routine)
Saentis	Switzerland	Record high maximum temperature	11.6 C (52.9 F)	31 of 100 (Routine)
Praha-Klementinum	Czech Republic	Record high minimum temperature	13.5 C (56.3 F)	30 of 100 (Routine)
Jena Sternwarte	Germany	Record high maximum temperature	31.2 C (88.2 F)	29 of 100 (Routine)
Arnsberg	Germany	Record high maximum temperature	26.7 C (80.1 F)	29 of 100 (Routine)
Braunschweig (T.H.)	Germany	Record high maximum temperature	28.2 C (82.8 F)	29 of 100 (Routine)
Rayakottah	India	Record daily precipitation	92.2 mm (3.6 in)	29 of 100 (Routine)
Waukomis	United States	Record daily precipitation	42.4 mm (1.7 in)	29 of 100 (Routine)
Hohenpeissenberg	Germany	Record high maximum temperature	23.4 C (74.1 F)	27 of 100 (Routine)
Wien	Austria	Record high maximum temperature	25.2 C (77.4 F)	26 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record high maximum temperature	23.3 C (73.9 F)	26 of 100 (Routine)
Zugspitze	Germany	Record high maximum temperature	7.0 C (44.6 F)	26 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record high minimum temperature	12.0 C (53.6 F)	26 of 100 (Routine)
Weissenburg	Germany	Record high minimum temperature	11.4 C (52.5 F)	26 of 100 (Routine)
Vastervik	Sweden	Record high maximum temperature	18.0 C (64.4 F)	26 of 100 (Routine)
Geneve Observatoire	Switzerland	Record high maximum temperature	27.3 C (81.1 F)	26 of 100 (Routine)
Blackfoot Fire Dept	United States	Record high minimum temperature	10.0 C (50.0 F)	26 of 100 (Routine)
Karlsruhe	Germany	Record high minimum temperature	14.4 C (57.9 F)	25 of 100 (Routine)
Potsdam	Germany	Record high maximum temperature	27.0 C (80.6 F)	25 of 100 (Routine)
Magdeburg	Germany	Record high maximum temperature	29.0 C (84.2 F)	25 of 100 (Routine)
Brocken	Germany	Record high minimum temperature	10.7 C (51.3 F)	25 of 100 (Routine)
Kirchdorf/Poel	Germany	Record high maximum temperature	22.0 C (71.6 F)	25 of 100 (Routine)
Brocken	Germany	Record high maximum temperature	19.7 C (67.5 F)	24 of 100 (Routine)
Salzburg	Austria	Record high minimum temperature	13.0 C (55.4 F)	23 of 100 (Routine)
Tranebjerg	Denmark	Record high maximum temperature	18.2 C (64.8 F)	23 of 100 (Routine)
Muenster	Germany	Record high minimum temperature	13.8 C (56.8 F)	23 of 100 (Routine)
Stuttgart-Stadt	Germany	Record high maximum temperature	28.3 C (82.9 F)	23 of 100 (Routine)
Stuttgart-Stadt	Germany	Record high minimum temperature	13.9 C (57.0 F)	23 of 100 (Routine)
Gorlitz	Germany	Record high minimum temperature	14.2 C (57.6 F)	23 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record high maximum temperature	28.1 C (82.6 F)	23 of 100 (Routine)
Lugano	Switzerland	Record high maximum temperature	27.0 C (80.6 F)	23 of 100 (Routine)
Lowestoft	United Kingdom	Record high minimum temperature	8.9 C (48.0 F)	23 of 100 (Routine)
Bartow 1SE	United States	Record daily precipitation	81.0 mm (3.2 in)	23 of 100 (Routine)
Pointe Au Pere	Canada	Record high minimum temperature	2.2 C (36.0 F)	22 of 100 (Routine)
Le Bourget	France	Record high minimum temperature	12.8 C (55.0 F)	22 of 100 (Routine)
Halle	Germany	Record high maximum temperature	30.6 C (87.1 F)	22 of 100 (Routine)
Fichtelberg	Germany	Record high minimum temperature	11.4 C (52.5 F)	22 of 100 (Routine)
Altastenberg	Germany	Record high maximum temperature	21.8 C (71.2 F)	22 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record high maximum temperature	28.5 C (83.3 F)	22 of 100 (Routine)
Wrixum/Fohr	Germany	Record high maximum temperature	19.9 C (67.8 F)	22 of 100 (Routine)
Bagalkot	India	Record daily precipitation	42.2 mm (1.7 in)	22 of 100 (Routine)
Sheffield	United Kingdom	Record high minimum temperature	7.8 C (46.0 F)	22 of 100 (Routine)
Ft Smith	United States	Record daily precipitation	36.8 mm (1.4 in)	22 of 100 (Routine)
Salzburg	Austria	Record high maximum temperature	30.0 C (86.0 F)	21 of 100 (Routine)
Vestervig	Denmark	Record high maximum temperature	18.5 C (65.3 F)	21 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record high minimum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record high minimum temperature	12.4 C (54.3 F)	21 of 100 (Routine)
Cottbus	Germany	Record high maximum temperature	30.1 C (86.2 F)	21 of 100 (Routine)
Hvar	Croatia	Record high maximum temperature	24.1 C (75.4 F)	21 of 100 (Routine)

Counts by Type and Timescale

234 records

Records set or tied on 17 April 1934 by type: Highest daily maximum 75, Lowest daily maximum 1, Highest daily minimum 74, Lowest daily minimum 3, Heaviest daily rainfall 80, Heaviest daily snowfall 1.

Records on 17 April 1934 by type
Record type	Records
Highest daily maximum	75
Lowest daily maximum	1
Highest daily minimum	74
Lowest daily minimum	3
Heaviest daily rainfall	80
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 17 April 1934 by timescale: all-time 0, monthly 37, daily 197.

How Much Records Were Beaten By

211 broken records

Margins by which the 211 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 68.8. Ties are not counted.

Top 20 by Significance

17 April 1934

Top 20 records on 17 April 1934 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 1934	Helmond, NL	monthly rain	32.5 mm (1.3 in)	8.5 mm (0.33 in)	30 years	48 of 100 (Notable)
17 April 1934	Praha-Klementinum, CZ	daily high max	27.6 C (81.7 F)	2.8 C (5.0 F)	133 years	45 of 100 (Notable)
17 April 1934	Jena Sternwarte, DE	daily high min	11.8 C (53.2 F)	0.5 C (0.9 F)	105 years	41 of 100 (Notable)
17 April 1934	Bologna, IT	daily high min	18.0 C (64.4 F)	0.5 C (0.9 F)	108 years	41 of 100 (Notable)
17 April 1934	Hypoluxo, US	daily rain	82.8 mm (3.3 in)	68.8 mm (2.7 in)	8 years	41 of 100 (Notable)
17 April 1934	Heerde, NL	daily rain	29.5 mm (1.2 in)	10.3 mm (0.4 in)	36 years	39 of 100 (Notable)
17 April 1934	Ponnani, IN	daily rain	77.2 mm (3.0 in)	60.2 mm (2.4 in)	4 years	33 of 100 (Routine)
17 April 1934	Armagh, GB	daily high min	7.8 C (46.0 F)	0.1 C (0.2 F)	80 years	33 of 100 (Routine)
17 April 1934	Karlsruhe, DE	daily high max	27.6 C (81.7 F)	5.6 C (10.1 F)	48 years	31 of 100 (Routine)
17 April 1934	Hohenpeissenberg, DE	daily high min	13.4 C (56.1 F)	5.3 C (9.5 F)	43 years	31 of 100 (Routine)
17 April 1934	Altastenberg, DE	daily high min	13.8 C (56.8 F)	7.4 C (13.3 F)	29 years	31 of 100 (Routine)
17 April 1934	Arnsberg, DE	daily high min	12.7 C (54.9 F)	3.8 C (6.8 F)	53 years	31 of 100 (Routine)
17 April 1934	Saentis, CH	monthly high max	11.6 C (52.9 F)	1.1 C (2.0 F)	47 years	31 of 100 (Routine)
17 April 1934	Praha-Klementinum, CZ	daily high min	13.5 C (56.3 F)	1.5 C (2.7 F)	55 years	30 of 100 (Routine)
17 April 1934	Jena Sternwarte, DE	monthly high max	31.2 C (88.2 F)	2.0 C (3.6 F)	20 years	29 of 100 (Routine)
17 April 1934	Arnsberg, DE	daily high max	26.7 C (80.1 F)	6.6 C (11.9 F)	38 years	29 of 100 (Routine)
17 April 1934	Braunschweig (T.H.), DE	daily high max	28.2 C (82.8 F)	8.0 C (14.4 F)	28 years	29 of 100 (Routine)
17 April 1934	Rayakottah, IN	monthly rain	92.2 mm (3.6 in)	16.0 mm (0.6 in)	23 years	29 of 100 (Routine)
17 April 1934	Waukomis, US	daily rain	42.4 mm (1.7 in)	31.0 mm (1.2 in)	25 years	29 of 100 (Routine)
17 April 1934	Hohenpeissenberg, DE	daily high max	23.4 C (74.1 F)	4.6 C (8.3 F)	43 years	27 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 1934

Records set or tied on this calendar date in each year from 1799 to 1934. 1934 had 234 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 1934-04-17: 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 10	189
10 to 20	17
20 to 30	2
30 to 40	1
40 to 50	0
50 to 60	0
60 to 70	2