Weather Records on 9 May 1924

262 weather records were set or tied worldwide on 9 May 1924. Highest significance: Harpers Ferry River, US.

Key Facts for 9 May 1924

On 9 May 1924, 262 weather records were set or tied at long-record stations worldwide.
22 were record highs and 175 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 23 monthly and 239 daily.
Harpers Ferry River set a daily record precipitation of 87.4 mm (3.4 in) on 9 May 1924.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 433 records.

Record Map

262 stations

262 station records on 9 May 1924 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 1924: highest significance records shown on the map
Station	Country	Type	Value	Significance
Harpers Ferry River	United States	Record daily precipitation	87.4 mm (3.4 in)	50 of 100 (Notable)
Parkers Landing	United States	Record daily precipitation	60.5 mm (2.4 in)	49 of 100 (Notable)
Westminster	Canada	Record daily precipitation	48.3 mm (1.9 in)	42 of 100 (Notable)
Newark Liberty Intl AP	United States	Record daily precipitation	65.8 mm (2.6 in)	42 of 100 (Notable)
Zagreb-Gric	Croatia	Record daily precipitation	29.7 mm (1.2 in)	41 of 100 (Notable)
Haliburton A	Canada	Record daily precipitation	30.5 mm (1.2 in)	38 of 100 (Notable)
Harrisville	United States	Record daily precipitation	43.2 mm (1.7 in)	38 of 100 (Notable)
Stratford	Canada	Record daily precipitation	32.3 mm (1.3 in)	36 of 100 (Notable)
Paterson	United States	Record daily precipitation	58.9 mm (2.3 in)	33 of 100 (Routine)
Plainfield	United States	Record daily precipitation	39.1 mm (1.5 in)	32 of 100 (Routine)
Paris	Canada	Record daily precipitation	57.2 mm (2.3 in)	31 of 100 (Routine)
Dover	United States	Record daily precipitation	41.7 mm (1.6 in)	31 of 100 (Routine)
Somerville 4 NW	United States	Record daily precipitation	36.6 mm (1.4 in)	29 of 100 (Routine)
Rowlesburg 1	United States	Record daily precipitation	36.1 mm (1.4 in)	29 of 100 (Routine)
Great Falls	United States	Record daily precipitation	35.6 mm (1.4 in)	28 of 100 (Routine)
Guelph Oac	Canada	Record daily precipitation	28.4 mm (1.1 in)	26 of 100 (Routine)
Lexington 3E	United States	Record low maximum temperature	8.9 C (48.0 F)	25 of 100 (Routine)
Toronto	Canada	Record daily precipitation	25.9 mm (1.0 in)	23 of 100 (Routine)
Sedan	United States	Record low maximum temperature	10.0 C (50.0 F)	23 of 100 (Routine)
Winterset 4N	United States	Record low maximum temperature	6.7 C (44.1 F)	22 of 100 (Routine)
Independence	United States	Record low maximum temperature	11.1 C (52.0 F)	22 of 100 (Routine)
Hartington	United States	Record low maximum temperature	5.0 C (41.0 F)	22 of 100 (Routine)
Milbank 4 NW	United States	Record low maximum temperature	4.4 C (39.9 F)	22 of 100 (Routine)
Oswego 1 N	United States	Record low maximum temperature	11.1 C (52.0 F)	21 of 100 (Routine)
Lynd #2	United States	Record low maximum temperature	1.7 C (35.1 F)	21 of 100 (Routine)
Lamar 7N	United States	Record low maximum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Genoa 2 W	United States	Record low maximum temperature	6.7 C (44.1 F)	21 of 100 (Routine)
Kansas City	United States	Record low maximum temperature	7.2 C (45.0 F)	21 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record daily precipitation	22.0 mm (0.9 in)	20 of 100 (Routine)
Brantford	Canada	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Peterborough	Canada	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Escanaba	United States	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record low minimum temperature	-0.2 C (31.6 F)	20 of 100 (Routine)
Storrs	United States	Record low maximum temperature	7.2 C (45.0 F)	20 of 100 (Routine)
Afton	United States	Record low maximum temperature	6.7 C (44.1 F)	20 of 100 (Routine)
Atlantic 1 NE	United States	Record low maximum temperature	5.6 C (42.1 F)	20 of 100 (Routine)
Bonaparte 5 NE	United States	Record low maximum temperature	7.8 C (46.0 F)	20 of 100 (Routine)
Millerton	United States	Record low maximum temperature	7.2 C (45.0 F)	20 of 100 (Routine)
Grenola 1 N	United States	Record low maximum temperature	11.7 C (53.1 F)	20 of 100 (Routine)
Bethany	United States	Record low maximum temperature	6.1 C (43.0 F)	20 of 100 (Routine)
Brunswick	United States	Record low maximum temperature	7.2 C (45.0 F)	20 of 100 (Routine)
Oregon	United States	Record low maximum temperature	7.2 C (45.0 F)	20 of 100 (Routine)
Hebron	United States	Record low maximum temperature	4.4 C (39.9 F)	20 of 100 (Routine)
Norfolk	United States	Record low maximum temperature	4.4 C (39.9 F)	20 of 100 (Routine)
Ravenna	United States	Record low maximum temperature	5.6 C (42.1 F)	20 of 100 (Routine)
Schenley Lock 5	United States	Record daily precipitation	39.6 mm (1.6 in)	20 of 100 (Routine)
Colchester 2 W	United States	Record daily precipitation	34.0 mm (1.3 in)	19 of 100 (Routine)
Indianola 1SW	United States	Record low maximum temperature	6.7 C (44.1 F)	19 of 100 (Routine)
Burlington	United States	Record low maximum temperature	11.7 C (53.1 F)	19 of 100 (Routine)
Lebo	United States	Record low maximum temperature	8.9 C (48.0 F)	19 of 100 (Routine)
Worthington	United States	Record low maximum temperature	2.8 C (37.0 F)	19 of 100 (Routine)
Yazoo City	United States	Record low maximum temperature	17.2 C (63.0 F)	19 of 100 (Routine)
Harrisonville	United States	Record low maximum temperature	7.8 C (46.0 F)	19 of 100 (Routine)
Eau Claire	United States	Record low maximum temperature	6.1 C (43.0 F)	19 of 100 (Routine)
Marshall	United States	Record low maximum temperature	8.9 C (48.0 F)	19 of 100 (Routine)
Corning	United States	Record low maximum temperature	5.6 C (42.1 F)	18 of 100 (Routine)
Yates Ctr	United States	Record low maximum temperature	7.8 C (46.0 F)	18 of 100 (Routine)
Taunton	United States	Record low maximum temperature	6.1 C (43.0 F)	18 of 100 (Routine)
Old Mission	United States	Record daily precipitation	38.9 mm (1.5 in)	18 of 100 (Routine)
Louisville	United States	Record low maximum temperature	16.7 C (62.1 F)	18 of 100 (Routine)

Counts by Type and Timescale

262 records

Records set or tied on 9 May 1924 by type: Highest daily maximum 13, Lowest daily maximum 158, Highest daily minimum 9, Lowest daily minimum 17, Heaviest daily rainfall 64, Heaviest daily snowfall 1.

Records on 9 May 1924 by type
Record type	Records
Highest daily maximum	13
Lowest daily maximum	158
Highest daily minimum	9
Lowest daily minimum	17
Heaviest daily rainfall	64
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 9 May 1924 by timescale: all-time 0, monthly 23, daily 239.

How Much Records Were Beaten By

219 broken records

Margins by which the 219 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.3. Ties are not counted.

Top 20 by Significance

9 May 1924

Top 20 records on 9 May 1924 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 1924	Harpers Ferry River, US	daily rain	87.4 mm (3.4 in)	67.3 mm (2.6 in)	24 years	50 of 100 (Notable)
9 May 1924	Parkers Landing, US	daily rain	60.5 mm (2.4 in)	42.7 mm (1.7 in)	23 years	49 of 100 (Notable)
9 May 1924	Westminster, CA	daily rain	48.3 mm (1.9 in)	37.1 mm (1.5 in)	18 years	42 of 100 (Notable)
9 May 1924	Newark Liberty Intl AP, US	daily rain	65.8 mm (2.6 in)	14.7 mm (0.6 in)	77 years	42 of 100 (Notable)
9 May 1924	Zagreb-Gric, HR	daily rain	29.7 mm (1.2 in)	16.6 mm (0.7 in)	52 years	41 of 100 (Notable)
9 May 1924	Haliburton A, CA	daily rain	30.5 mm (1.2 in)	19.1 mm (0.8 in)	38 years	38 of 100 (Notable)
9 May 1924	Harrisville, US	daily rain	43.2 mm (1.7 in)	28.0 mm (1.1 in)	15 years	38 of 100 (Notable)
9 May 1924	Stratford, CA	daily rain	32.3 mm (1.3 in)	21.9 mm (0.9 in)	18 years	36 of 100 (Notable)
9 May 1924	Paterson, US	daily rain	58.9 mm (2.3 in)	29.2 mm (1.1 in)	23 years	33 of 100 (Routine)
9 May 1924	Plainfield, US	daily rain	39.1 mm (1.5 in)	30.2 mm (1.2 in)	18 years	32 of 100 (Routine)
9 May 1924	Paris, CA	daily rain	57.2 mm (2.3 in)	24.2 mm (1.0 in)	7 years	31 of 100 (Routine)
9 May 1924	Dover, US	daily rain	41.7 mm (1.6 in)	31.3 mm (1.2 in)	14 years	31 of 100 (Routine)
9 May 1924	Somerville 4 NW, US	daily rain	36.6 mm (1.4 in)	25.7 mm (1.0 in)	18 years	29 of 100 (Routine)
9 May 1924	Rowlesburg 1, US	daily rain	36.1 mm (1.4 in)	17.3 mm (0.7 in)	17 years	29 of 100 (Routine)
9 May 1924	Great Falls, US	daily rain	35.6 mm (1.4 in)	19.1 mm (0.8 in)	24 years	28 of 100 (Routine)
9 May 1924	Guelph Oac, CA	daily rain	28.4 mm (1.1 in)	17.7 mm (0.7 in)	1 year	26 of 100 (Routine)
9 May 1924	Lexington 3E, US	daily low max	8.9 C (48.0 F)	9.4 C (16.9 F)	18 years	25 of 100 (Routine)
9 May 1924	Toronto, CA	daily rain	25.9 mm (1.0 in)	1.3 mm (0.05 in)	48 years	23 of 100 (Routine)
9 May 1924	Sedan, US	daily low max	10.0 C (50.0 F)	7.8 C (14.0 F)	15 years	23 of 100 (Routine)
9 May 1924	Winterset 4N, US	daily low max	6.7 C (44.1 F)	7.7 C (13.9 F)	19 years	22 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

1793 to 1924

Records set or tied on this calendar date in each year from 1793 to 1924. 1924 had 262 records.

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

Records on 05-09 in each year
Year	Records
1793	1
1795	1
1806	1
1810	1
1823	1
1834	1
1838	1
1843	1
1845	2
1846	1
1848	1
1850	2
1855	2
1857	1
1858	1
1861	1
1862	1
1864	2
1865	2
1867	2
1872	1
1873	2
1874	1
1875	2
1879	4
1880	3
1882	1
1883	2
1884	3
1885	3
1889	3
1890	3
1891	3
1892	1
1893	1
1895	2
1896	4
1897	3
1898	3
1899	2
1900	2
1901	9
1902	8
1903	9
1904	14
1905	34
1906	41
1907	11
1908	16
1909	34
1910	45
1911	23
1912	23
1913	15
1914	43
1915	27
1916	26
1917	50
1918	49
1919	47
1920	56
1921	102
1922	45
1923	461
1924	262
1925	123
1926	196
1927	343
1928	302
1929	166
1930	526
1931	411
1932	132
1933	482
1934	750
1935	111
1936	622
1937	128
1938	171
1939	345
1940	237
1941	335
1942	180
1943	524
1944	412
1945	538
1946	278
1947	1,145
1948	379
1949	417
1950	660
1951	188
1952	348
1953	507
1954	489
1955	288
1956	722
1957	505
1958	355
1959	252
1960	748
1961	516
1962	435
1963	1,103
1964	503
1965	730
1966	994
1967	681
1968	545
1969	653
1970	372
1971	338
1972	587
1973	386
1974	699
1975	465
1976	714
1977	931
1978	649
1979	1,605
1980	1,030
1981	639
1982	523
1983	872
1984	892
1985	829
1986	1,253
1987	1,481
1988	594
1989	1,347
1990	850
1991	759
1992	1,476
1993	967
1994	573
1995	960
1996	1,260
1997	1,088
1998	1,182
1999	970
2000	1,114
2001	969
2002	1,489
2003	1,802
2004	926
2005	851
2006	738
2007	765
2008	693
2009	816
2010	764
2011	1,104
2012	686
2013	684
2014	754
2015	689
2016	917
2017	539
2018	879
2019	1,043
2020	1,673
2021	501
2022	1,308
2023	474
2024	792
2025	622
2026	309

Download the Data

Data for records on 1924-05-09: 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	193
10 to 20	16
20 to 30	5
30 to 40	3
40 to 50	1
50 to 60	0
60 to 70	1