Weather Records on 17 May 1929

168 weather records were set or tied worldwide on 17 May 1929. Highest significance: Simferopol, UA.

Key Facts for 17 May 1929

On 17 May 1929, 168 weather records were set or tied at long-record stations worldwide.
14 were record highs and 117 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 166 daily.
Simferopol set a daily record precipitation of 27.5 mm (1.1 in) on 17 May 1929.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 436 records.

Record Map

168 stations

168 station records on 17 May 1929 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 May 1929: highest significance records shown on the map
Station	Country	Type	Value	Significance
Simferopol	Ukraine	Record daily precipitation	27.5 mm (1.1 in)	32 of 100 (Routine)
Columbia	United States	Record daily precipitation	51.8 mm (2.0 in)	32 of 100 (Routine)
Arapaho	United States	Record daily precipitation	48.3 mm (1.9 in)	27 of 100 (Routine)
Waukomis	United States	Record daily precipitation	40.6 mm (1.6 in)	26 of 100 (Routine)
Worcester	United States	Record low minimum temperature	-0.6 C (30.9 F)	22 of 100 (Routine)
Kingstree	United States	Record daily precipitation	38.9 mm (1.5 in)	22 of 100 (Routine)
Alamogordo 1	United States	Record low maximum temperature	23.3 C (73.9 F)	21 of 100 (Routine)
Cowles	United States	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record daily precipitation	20.4 mm (0.8 in)	20 of 100 (Routine)
Ft Stanton	United States	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Kargopol	Russia	Record daily precipitation	15.9 mm (0.6 in)	20 of 100 (Routine)
Saskatoon Diefenbaker Int'l A	Canada	Record daily snowfall	11.4 cm (4.5 in)	20 of 100 (Routine)
Anticosti SW Point	Canada	Record low maximum temperature	3.3 C (37.9 F)	20 of 100 (Routine)
Wetumpka	United States	Record daily precipitation	40.6 mm (1.6 in)	20 of 100 (Routine)
Qu'appelle	Canada	Record low maximum temperature	5.6 C (42.1 F)	19 of 100 (Routine)
Qu'appelle	Canada	Record daily snowfall	1.0 cm (0.4 in)	19 of 100 (Routine)
Battleford	Canada	Record daily snowfall	2.5 cm (1.0 in)	19 of 100 (Routine)
Bederkesa	Germany	Record daily precipitation	18.9 mm (0.7 in)	19 of 100 (Routine)
Timovskoe	Russia	Record daily precipitation	14.3 mm (0.6 in)	19 of 100 (Routine)
Taos	United States	Record daily precipitation	9.7 mm (0.38 in)	19 of 100 (Routine)
Chicoutimi	Canada	Record low maximum temperature	3.9 C (39.0 F)	18 of 100 (Routine)
Lambertville River	United States	Record low minimum temperature	1.7 C (35.1 F)	18 of 100 (Routine)
Lancaster 2 NW	United States	Record low minimum temperature	0.6 C (33.1 F)	18 of 100 (Routine)
Macon 2 NE	United States	Record daily precipitation	23.9 mm (0.9 in)	17 of 100 (Routine)
Beaver City	United States	Record daily precipitation	17.5 mm (0.7 in)	17 of 100 (Routine)
Ft Bayard 4W	United States	Record daily precipitation	9.9 mm (0.39 in)	17 of 100 (Routine)
Wheeling (1)	United States	Record low minimum temperature	-0.6 C (30.9 F)	17 of 100 (Routine)
Indian Head Cda	Canada	Record low maximum temperature	3.3 C (37.9 F)	16 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high maximum temperature	12.3 C (54.1 F)	16 of 100 (Routine)
Goldberg	Germany	Record daily precipitation	11.3 mm (0.4 in)	16 of 100 (Routine)
Canon City	United States	Record high maximum temperature	33.3 C (91.9 F)	16 of 100 (Routine)
New London	United States	Record low minimum temperature	3.9 C (39.0 F)	16 of 100 (Routine)
Aurora Water	United States	Record low minimum temperature	1.1 C (34.0 F)	16 of 100 (Routine)
Emmitsburg	United States	Record low minimum temperature	2.8 C (37.0 F)	16 of 100 (Routine)
Summerville 4W	United States	Record daily precipitation	28.7 mm (1.1 in)	16 of 100 (Routine)
Glenville	United States	Record low minimum temperature	1.1 C (34.0 F)	16 of 100 (Routine)
Bad Muskau	Germany	Record daily precipitation	19.8 mm (0.8 in)	15 of 100 (Routine)
Sparta 1 W	United States	Record low minimum temperature	4.4 C (39.9 F)	15 of 100 (Routine)
Chinook	United States	Record low maximum temperature	8.9 C (48.0 F)	15 of 100 (Routine)
Philo 3 SW	United States	Record low minimum temperature	1.7 C (35.1 F)	15 of 100 (Routine)
Somerset Main Street	United States	Record low minimum temperature	-5.0 C (23.0 F)	15 of 100 (Routine)
Minnedosa	Canada	Record low maximum temperature	5.6 C (42.1 F)	14 of 100 (Routine)
Pointe Riche	Canada	Record daily precipitation	14.2 mm (0.6 in)	14 of 100 (Routine)
Schwerin	Germany	Record daily precipitation	12.8 mm (0.5 in)	14 of 100 (Routine)
Vastervik	Sweden	Record high minimum temperature	9.3 C (48.7 F)	14 of 100 (Routine)
Mt Vernon 3 NE	United States	Record low minimum temperature	3.9 C (39.0 F)	14 of 100 (Routine)
Delphi 2 N	United States	Record low minimum temperature	2.2 C (36.0 F)	14 of 100 (Routine)
Bethlehem	United States	Record low minimum temperature	-0.6 C (30.9 F)	14 of 100 (Routine)
Marietta Wtr Wks	United States	Record low minimum temperature	1.1 C (34.0 F)	14 of 100 (Routine)
Prescott	United States	Record daily precipitation	1.0 mm (0.04 in)	13 of 100 (Routine)
Bridgeport	United States	Record low minimum temperature	1.1 C (34.0 F)	13 of 100 (Routine)
Ottawa 4SW	United States	Record low minimum temperature	3.3 C (37.9 F)	13 of 100 (Routine)
Fayette	United States	Record daily precipitation	39.6 mm (1.6 in)	13 of 100 (Routine)
Flemington 5 NNW	United States	Record low minimum temperature	1.7 C (35.1 F)	13 of 100 (Routine)
Melville	United States	Record low maximum temperature	10.6 C (51.1 F)	13 of 100 (Routine)
Kingston	United States	Record low minimum temperature	1.7 C (35.1 F)	13 of 100 (Routine)
El Paso	United States	Record daily precipitation	0.5 mm (0.02 in)	13 of 100 (Routine)
Hambantota	Sri Lanka	Record high minimum temperature	26.5 C (79.7 F)	12 of 100 (Routine)
Tampa	United States	Record high minimum temperature	23.3 C (73.9 F)	12 of 100 (Routine)
Anna 4 N	United States	Record low minimum temperature	5.6 C (42.1 F)	12 of 100 (Routine)

Counts by Type and Timescale

168 records

Records set or tied on 17 May 1929 by type: Highest daily maximum 4, Lowest daily maximum 21, Highest daily minimum 10, Lowest daily minimum 96, Heaviest daily rainfall 34, Heaviest daily snowfall 3.

Records on 17 May 1929 by type
Record type	Records
Highest daily maximum	4
Lowest daily maximum	21
Highest daily minimum	10
Lowest daily minimum	96
Heaviest daily rainfall	34
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 17 May 1929 by timescale: all-time 0, monthly 2, daily 166.

How Much Records Were Beaten By

120 broken records

Margins by which the 120 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 36.4. Ties are not counted.

Top 20 by Significance

17 May 1929

Top 20 records on 17 May 1929 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 May 1929	Simferopol, UA	daily rain	27.5 mm (1.1 in)	14.1 mm (0.6 in)	15 years	32 of 100 (Routine)
17 May 1929	Columbia, US	daily rain	51.8 mm (2.0 in)	29.7 mm (1.2 in)	7 years	32 of 100 (Routine)
17 May 1929	Arapaho, US	daily rain	48.3 mm (1.9 in)	36.4 mm (1.4 in)	11 years	27 of 100 (Routine)
17 May 1929	Waukomis, US	daily rain	40.6 mm (1.6 in)	20.3 mm (0.8 in)	28 years	26 of 100 (Routine)
17 May 1929	Worcester, US	daily low min	-0.6 C (30.9 F)	3.9 C (7.0 F)	33 years	22 of 100 (Routine)
17 May 1929	Kingstree, US	daily rain	38.9 mm (1.5 in)	18.3 mm (0.7 in)	11 years	22 of 100 (Routine)
17 May 1929	Alamogordo 1, US	daily low max	23.3 C (73.9 F)	3.4 C (6.1 F)	35 years	21 of 100 (Routine)
17 May 1929	Cowles, US	daily rain	21.8 mm (0.9 in)	18.2 mm (0.7 in)	15 years	20 of 100 (Routine)
17 May 1929	Aleksandrovsk-Sahalinskij, RU	daily rain	20.4 mm (0.8 in)	7.8 mm (0.31 in)	14 years	20 of 100 (Routine)
17 May 1929	Ft Stanton, US	daily rain	7.6 mm (0.30 in)	7.3 mm (0.29 in)	28 years	20 of 100 (Routine)
17 May 1929	Kargopol, RU	daily rain	15.9 mm (0.6 in)	4.8 mm (0.19 in)	29 years	20 of 100 (Routine)
17 May 1929	Saskatoon Diefenbaker Int'l A, CA	monthly snowfall	11.4 cm (4.5 in)	2.5 cm (1.0 in)	8 years	20 of 100 (Routine)
17 May 1929	Anticosti SW Point, CA	daily low max	3.3 C (37.9 F)	1.1 C (2.0 F)	40 years	20 of 100 (Routine)
17 May 1929	Wetumpka, US	daily rain	40.6 mm (1.6 in)	15.2 mm (0.6 in)	24 years	20 of 100 (Routine)
17 May 1929	Qu'appelle, CA	daily low max	5.6 C (42.1 F)	3.8 C (6.8 F)	29 years	19 of 100 (Routine)
17 May 1929	Qu'appelle, CA	daily snowfall	1.0 cm (0.4 in)	1.0 cm (0.4 in)	44 years	19 of 100 (Routine)
17 May 1929	Battleford, CA	daily snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	37 years	19 of 100 (Routine)
17 May 1929	Bederkesa, DE	daily rain	18.9 mm (0.7 in)	6.0 mm (0.24 in)	23 years	19 of 100 (Routine)
17 May 1929	Timovskoe, RU	daily rain	14.3 mm (0.6 in)	5.1 mm (0.20 in)	10 years	19 of 100 (Routine)
17 May 1929	Taos, US	daily rain	9.7 mm (0.38 in)	6.7 mm (0.26 in)	15 years	19 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 1929

Records set or tied on this calendar date in each year from 1802 to 1929. 1929 had 168 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 1929-05-17: 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	98
5 to 10	8
10 to 15	5
15 to 20	4
20 to 25	1
25 to 30	3
30 to 35	0
35 to 40	1