Weather Records on 18 May 1928

160 weather records were set or tied worldwide on 18 May 1928. Highest significance: Frankfort Downtown, US.

Key Facts for 18 May 1928

On 18 May 1928, 160 weather records were set or tied at long-record stations worldwide.
49 were record highs and 24 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 3 monthly and 156 daily.
Frankfort Downtown set a daily record precipitation of 45.7 mm (1.8 in) on 18 May 1928.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 444 records.

Record Map

160 stations

160 station records on 18 May 1928 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1928: highest significance records shown on the map
Station	Country	Type	Value	Significance
Frankfort Downtown	United States	Record daily precipitation	45.7 mm (1.8 in)	44 of 100 (Notable)
Mt Sterling	United States	Record daily precipitation	57.2 mm (2.3 in)	43 of 100 (Notable)
Kvikkjokk-Arrenjarka	Sweden	Record daily precipitation	25.9 mm (1.0 in)	38 of 100 (Notable)
Mt Vernon	United States	Record daily precipitation	54.1 mm (2.1 in)	35 of 100 (Notable)
Sigourney	United States	Record daily precipitation	43.2 mm (1.7 in)	32 of 100 (Routine)
Franklin	United States	Record daily precipitation	76.2 mm (3.0 in)	30 of 100 (Routine)
Bardstown	United States	Record daily precipitation	39.9 mm (1.6 in)	29 of 100 (Routine)
Toledo 3N	United States	Record daily precipitation	54.4 mm (2.1 in)	27 of 100 (Routine)
Owensboro 3ENE	United States	Record daily precipitation	41.7 mm (1.6 in)	27 of 100 (Routine)
Wakefield 3NW	United States	Record daily precipitation	38.1 mm (1.5 in)	27 of 100 (Routine)
Evansville Ft Court STN	United States	Record daily precipitation	34.5 mm (1.4 in)	25 of 100 (Routine)
Somerville 4 NW	United States	Record daily precipitation	30.2 mm (1.2 in)	25 of 100 (Routine)
Perth Regional Office	Australia	Record high maximum temperature	29.4 C (84.9 F)	24 of 100 (Routine)
Geryville (El-Bayadh)	Algeria	Record low maximum temperature	13.0 C (55.4 F)	23 of 100 (Routine)
Harrisburg	United States	Record daily precipitation	26.4 mm (1.0 in)	23 of 100 (Routine)
Ventspils	Latvia	Record daily precipitation	34.1 mm (1.3 in)	22 of 100 (Routine)
Leitchfield 2 N	United States	Record daily precipitation	36.6 mm (1.4 in)	21 of 100 (Routine)
Grand Coteau	United States	Record high minimum temperature	23.9 C (75.0 F)	21 of 100 (Routine)
Perryville	United States	Record daily precipitation	37.1 mm (1.5 in)	21 of 100 (Routine)
Junsele	Sweden	Record daily precipitation	13.3 mm (0.5 in)	20 of 100 (Routine)
Hoburg	Sweden	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Gysinge	Sweden	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Gavle	Sweden	Record daily precipitation	18.2 mm (0.7 in)	20 of 100 (Routine)
Uppsala_Aut	Sweden	Record daily precipitation	21.5 mm (0.8 in)	20 of 100 (Routine)
Kei Road (Pol)	South Africa	Record daily precipitation	11.7 mm (0.5 in)	19 of 100 (Routine)
Holmogadd A	Sweden	Record daily precipitation	14.2 mm (0.6 in)	19 of 100 (Routine)
Innsbruck	Austria	Record low minimum temperature	1.8 C (35.2 F)	18 of 100 (Routine)
Bjuroklubb	Sweden	Record daily precipitation	11.1 mm (0.4 in)	18 of 100 (Routine)
San Diego Wbo	United States	Record high minimum temperature	16.1 C (61.0 F)	18 of 100 (Routine)
Newport 1 NW	United States	Record daily precipitation	28.4 mm (1.1 in)	18 of 100 (Routine)
Georgetown Post Office	Australia	Record low minimum temperature	5.0 C (41.0 F)	17 of 100 (Routine)
Morden	Canada	Record daily precipitation	26.7 mm (1.1 in)	17 of 100 (Routine)
Belle Plaine	United States	Record daily precipitation	37.1 mm (1.5 in)	17 of 100 (Routine)
Grinnell 3 SW	United States	Record daily precipitation	33.0 mm (1.3 in)	17 of 100 (Routine)
Steffenville	United States	Record daily precipitation	53.3 mm (2.1 in)	17 of 100 (Routine)
Weeping Water	United States	Record daily precipitation	25.4 mm (1.0 in)	17 of 100 (Routine)
Towanda 1 S	United States	Record daily precipitation	21.1 mm (0.8 in)	17 of 100 (Routine)
Stroud Post Office	Australia	Record daily precipitation	12.7 mm (0.5 in)	16 of 100 (Routine)
Independence	United States	Record daily precipitation	0.8 mm (0.03 in)	16 of 100 (Routine)
Millsboro	United States	Record daily precipitation	29.7 mm (1.2 in)	16 of 100 (Routine)
Phillipsburg 1 SSE	United States	Record daily precipitation	17.3 mm (0.7 in)	16 of 100 (Routine)
La Crosse Wb City	United States	Record daily precipitation	38.1 mm (1.5 in)	16 of 100 (Routine)
Mildura Post Office	Australia	Record low minimum temperature	1.1 C (34.0 F)	15 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	12.1 C (53.8 F)	15 of 100 (Routine)
Kologha (Bos)	South Africa	Record daily precipitation	2.5 mm (0.10 in)	15 of 100 (Routine)
E Tawas	United States	Record daily precipitation	19.3 mm (0.8 in)	15 of 100 (Routine)
Hartington	United States	Record daily precipitation	39.4 mm (1.6 in)	15 of 100 (Routine)
Stratton	United States	Record daily precipitation	57.4 mm (2.3 in)	15 of 100 (Routine)
Wahpeton 3 N	United States	Record daily precipitation	10.7 mm (0.4 in)	15 of 100 (Routine)
Clinton	United States	Record daily precipitation	18.0 mm (0.7 in)	15 of 100 (Routine)
Salem AP (McNary Field)	United States	Record high maximum temperature	28.9 C (84.0 F)	15 of 100 (Routine)
Broome Post Office	Australia	Record low minimum temperature	12.9 C (55.2 F)	14 of 100 (Routine)
St Albans	Canada	Record daily precipitation	17.8 mm (0.7 in)	14 of 100 (Routine)
Olney 2S	United States	Record daily precipitation	20.8 mm (0.8 in)	14 of 100 (Routine)
Wappingers Falls	United States	Record daily precipitation	29.5 mm (1.2 in)	14 of 100 (Routine)
Cambridge St Hospital	United States	Record high minimum temperature	17.2 C (63.0 F)	14 of 100 (Routine)
Willapa Harbor	United States	Record high maximum temperature	23.3 C (73.9 F)	14 of 100 (Routine)
Lost Creek Near	United States	Record high minimum temperature	15.6 C (60.1 F)	14 of 100 (Routine)
Darwin Post Office	Australia	Record low minimum temperature	16.7 C (62.1 F)	13 of 100 (Routine)
Tewantin Post Office	Australia	Record low maximum temperature	20.8 C (69.4 F)	13 of 100 (Routine)

Counts by Type and Timescale

160 records

Records set or tied on 18 May 1928 by type: Highest daily maximum 15, Lowest daily maximum 12, Highest daily minimum 34, Lowest daily minimum 12, Heaviest daily rainfall 87.

Records on 18 May 1928 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	12
Highest daily minimum	34
Lowest daily minimum	12
Heaviest daily rainfall	87
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 May 1928 by timescale: all-time 1, monthly 3, daily 156.

How Much Records Were Beaten By

129 broken records

Margins by which the 129 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 39.2. Ties are not counted.

Top 20 by Significance

18 May 1928

Top 20 records on 18 May 1928 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1928	Frankfort Downtown, US	daily rain	45.7 mm (1.8 in)	31.7 mm (1.2 in)	18 years	44 of 100 (Notable)
18 May 1928	Mt Sterling, US	daily rain	57.2 mm (2.3 in)	39.2 mm (1.5 in)	18 years	43 of 100 (Notable)
18 May 1928	Kvikkjokk-Arrenjarka, SE	monthly rain	25.9 mm (1.0 in)	5.3 mm (0.21 in)	40 years	38 of 100 (Notable)
18 May 1928	Mt Vernon, US	daily rain	54.1 mm (2.1 in)	33.8 mm (1.3 in)	8 years	35 of 100 (Notable)
18 May 1928	Sigourney, US	daily rain	43.2 mm (1.7 in)	29.5 mm (1.2 in)	2 years	32 of 100 (Routine)
18 May 1928	Franklin, US	all-time rain	76.2 mm (3.0 in)	4.6 mm (0.18 in)	8 years	30 of 100 (Routine)
18 May 1928	Bardstown, US	daily rain	39.9 mm (1.6 in)	22.4 mm (0.9 in)	18 years	29 of 100 (Routine)
18 May 1928	Toledo 3N, US	daily rain	54.4 mm (2.1 in)	28.0 mm (1.1 in)	1 year	27 of 100 (Routine)
18 May 1928	Owensboro 3ENE, US	daily rain	41.7 mm (1.6 in)	19.6 mm (0.8 in)	28 years	27 of 100 (Routine)
18 May 1928	Wakefield 3NW, US	daily rain	38.1 mm (1.5 in)	24.1 mm (0.9 in)	7 years	27 of 100 (Routine)
18 May 1928	Evansville Ft Court STN, US	daily rain	34.5 mm (1.4 in)	22.6 mm (0.9 in)	8 years	25 of 100 (Routine)
18 May 1928	Somerville 4 NW, US	daily rain	30.2 mm (1.2 in)	17.2 mm (0.7 in)	22 years	25 of 100 (Routine)
18 May 1928	Perth Regional Office, AU	daily high max	29.4 C (84.9 F)	5.1 C (9.2 F)	15 years	24 of 100 (Routine)
18 May 1928	Geryville (El-Bayadh), DZ	daily low max	13.0 C (55.4 F)	6.0 C (10.8 F)	22 years	23 of 100 (Routine)
18 May 1928	Harrisburg, US	daily rain	26.4 mm (1.0 in)	17.8 mm (0.7 in)	28 years	23 of 100 (Routine)
18 May 1928	Ventspils, LV	monthly rain	34.1 mm (1.3 in)	2.2 mm (0.09 in)	13 years	22 of 100 (Routine)
18 May 1928	Leitchfield 2 N, US	daily rain	36.6 mm (1.4 in)	20.6 mm (0.8 in)	8 years	21 of 100 (Routine)
18 May 1928	Grand Coteau, US	daily high min	23.9 C (75.0 F)	2.8 C (5.0 F)	33 years	21 of 100 (Routine)
18 May 1928	Perryville, US	daily rain	37.1 mm (1.5 in)	14.2 mm (0.6 in)	28 years	21 of 100 (Routine)
18 May 1928	Junsele, SE	daily rain	13.3 mm (0.5 in)	8.2 mm (0.32 in)	40 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

1796 to 1928

Records set or tied on this calendar date in each year from 1796 to 1928. 1928 had 160 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 1928-05-18: 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	81
5 to 10	29
10 to 15	4
15 to 20	5
20 to 25	5
25 to 30	2
30 to 35	2
35 to 40	1