Weather Records on 14 May 1940

324 weather records were set or tied worldwide on 14 May 1940. Highest significance: Kukuiula 935, US.

Key Facts for 14 May 1940

On 14 May 1940, 324 weather records were set or tied at long-record stations worldwide.
175 were record highs and 36 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 321 daily.
Kukuiula 935 set a daily record precipitation of 67.1 mm (2.6 in) on 14 May 1940.
Across 165 earlier years (1813 to 2026) the same calendar date averaged 416 records.

Record Map

324 stations

324 station records on 14 May 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 14 May 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kukuiula 935	United States	Record daily precipitation	67.1 mm (2.6 in)	51 of 100 (Notable)
Maunawili Rch	United States	Record daily precipitation	85.9 mm (3.4 in)	51 of 100 (Notable)
Long Lake Dam	United States	Record daily precipitation	36.6 mm (1.4 in)	43 of 100 (Notable)
Kilauea 1134	United States	Record daily precipitation	90.2 mm (3.6 in)	41 of 100 (Notable)
Greenough	Australia	Record daily precipitation	41.7 mm (1.6 in)	40 of 100 (Notable)
Two Harbors	United States	Record daily precipitation	50.8 mm (2.0 in)	38 of 100 (Notable)
Fergus Falls	United States	Record daily precipitation	37.6 mm (1.5 in)	35 of 100 (Notable)
Grantsburg	United States	Record daily precipitation	44.5 mm (1.8 in)	35 of 100 (Notable)
Coloso	Puerto Rico [United States]	Record daily precipitation	87.1 mm (3.4 in)	31 of 100 (Routine)
Forman 5 SSE	United States	Record daily precipitation	38.6 mm (1.5 in)	31 of 100 (Routine)
Big St Germain Dam	United States	Record daily precipitation	31.8 mm (1.3 in)	31 of 100 (Routine)
Jeanerette 5 NW	United States	Record daily precipitation	40.9 mm (1.6 in)	30 of 100 (Routine)
Geraldton Town	Australia	Record daily precipitation	31.8 mm (1.3 in)	29 of 100 (Routine)
Mingenew	Australia	Record daily precipitation	26.2 mm (1.0 in)	28 of 100 (Routine)
Malvern	United Kingdom	Record daily precipitation	26.9 mm (1.1 in)	28 of 100 (Routine)
Morgantown 1	United States	Record high minimum temperature	20.0 C (68.0 F)	28 of 100 (Routine)
Maryvale Station	Australia	Record daily precipitation	30.0 mm (1.2 in)	27 of 100 (Routine)
Port Arthur	Canada	Record daily snowfall	6.9 cm (2.7 in)	27 of 100 (Routine)
Wahpeton 3 N	United States	Record daily precipitation	51.3 mm (2.0 in)	27 of 100 (Routine)
Campbell	United States	Record daily precipitation	30.2 mm (1.2 in)	26 of 100 (Routine)
Palani	India	Record daily precipitation	50.8 mm (2.0 in)	25 of 100 (Routine)
St Peter	United States	Record daily precipitation	36.1 mm (1.4 in)	25 of 100 (Routine)
Cape Leeuwin	Australia	Record daily precipitation	38.1 mm (1.5 in)	24 of 100 (Routine)
Superior	United States	Record daily precipitation	27.9 mm (1.1 in)	24 of 100 (Routine)
Yuna	Australia	Record daily precipitation	32.0 mm (1.3 in)	23 of 100 (Routine)
Aurora	United States	Record daily precipitation	32.5 mm (1.3 in)	22 of 100 (Routine)
Berhampore	India	Record daily precipitation	37.8 mm (1.5 in)	21 of 100 (Routine)
Pontiac Wwtp	United States	Record high maximum temperature	28.9 C (84.0 F)	21 of 100 (Routine)
Maple Plain	United States	Record daily precipitation	36.1 mm (1.4 in)	21 of 100 (Routine)
Mora	United States	Record daily precipitation	35.1 mm (1.4 in)	21 of 100 (Routine)
Pine Rvr Dam	United States	Record daily precipitation	25.9 mm (1.0 in)	21 of 100 (Routine)
Minden	United States	Record daily precipitation	35.6 mm (1.4 in)	21 of 100 (Routine)
Trenton 2	United States	Record high maximum temperature	31.7 C (89.1 F)	21 of 100 (Routine)
Centre Hall	United States	Record high maximum temperature	32.8 C (91.0 F)	21 of 100 (Routine)
Harrisburg - Coop	United States	Record high maximum temperature	33.9 C (93.0 F)	21 of 100 (Routine)
Hayward Rs	United States	Record daily precipitation	26.2 mm (1.0 in)	21 of 100 (Routine)
Washington	United States	Record high maximum temperature	33.3 C (91.9 F)	21 of 100 (Routine)
University Exp STN	United States	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
White River	Canada	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Amenia	United States	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Revelstoke	Canada	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Ada	United States	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Manarra	Australia	Record daily precipitation	23.1 mm (0.9 in)	20 of 100 (Routine)
Schreiber	Canada	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Hillgrove Station	Australia	Record daily precipitation	6.4 mm (0.25 in)	20 of 100 (Routine)
Atherton Post Office	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Herberton White St	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record daily precipitation	8.2 mm (0.32 in)	20 of 100 (Routine)
Yarragadee	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Phelps	United States	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Lucan	Canada	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Brainerd	United States	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Sandy Lake Dam Libby	United States	Record daily snowfall	2.0 cm (0.8 in)	20 of 100 (Routine)
Urella	Australia	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Carnamah	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Irvinebank	Australia	Record daily precipitation	4.1 mm (0.16 in)	20 of 100 (Routine)
Bajramaly	Turkmenistan	Record low minimum temperature	8.5 C (47.3 F)	20 of 100 (Routine)
Wayne	United States	Record high maximum temperature	33.3 C (91.9 F)	20 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high maximum temperature	29.4 C (84.9 F)	20 of 100 (Routine)
Carlisle	United States	Record high maximum temperature	33.9 C (93.0 F)	20 of 100 (Routine)

Counts by Type and Timescale

324 records

Records set or tied on 14 May 1940 by type: Highest daily maximum 97, Lowest daily maximum 17, Highest daily minimum 78, Lowest daily minimum 19, Heaviest daily rainfall 111, Heaviest daily snowfall 2.

Records on 14 May 1940 by type
Record type	Records
Highest daily maximum	97
Lowest daily maximum	17
Highest daily minimum	78
Lowest daily minimum	19
Heaviest daily rainfall	111
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 14 May 1940 by timescale: all-time 0, monthly 3, daily 321.

How Much Records Were Beaten By

251 broken records

Margins by which the 251 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.0. Ties are not counted.

Top 20 by Significance

14 May 1940

Top 20 records on 14 May 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
14 May 1940	Kukuiula 935, US	daily rain	67.1 mm (2.6 in)	60.0 mm (2.4 in)	29 years	51 of 100 (Notable)
14 May 1940	Maunawili Rch, US	daily rain	85.9 mm (3.4 in)	58.0 mm (2.3 in)	27 years	51 of 100 (Notable)
14 May 1940	Long Lake Dam, US	daily rain	36.6 mm (1.4 in)	28.2 mm (1.1 in)	24 years	43 of 100 (Notable)
14 May 1940	Kilauea 1134, US	daily rain	90.2 mm (3.6 in)	42.4 mm (1.7 in)	13 years	41 of 100 (Notable)
14 May 1940	Greenough, AU	daily rain	41.7 mm (1.6 in)	25.4 mm (1.0 in)	27 years	40 of 100 (Notable)
14 May 1940	Two Harbors, US	monthly rain	50.8 mm (2.0 in)	9.9 mm (0.39 in)	40 years	38 of 100 (Notable)
14 May 1940	Fergus Falls, US	daily rain	37.6 mm (1.5 in)	21.9 mm (0.9 in)	27 years	35 of 100 (Notable)
14 May 1940	Grantsburg, US	daily rain	44.5 mm (1.8 in)	28.0 mm (1.1 in)	24 years	35 of 100 (Notable)
14 May 1940	Coloso, PR	daily rain	87.1 mm (3.4 in)	47.7 mm (1.9 in)	4 years	31 of 100 (Routine)
14 May 1940	Forman 5 SSE, US	daily rain	38.6 mm (1.5 in)	22.1 mm (0.9 in)	24 years	31 of 100 (Routine)
14 May 1940	Big St Germain Dam, US	daily rain	31.8 mm (1.3 in)	18.8 mm (0.7 in)	24 years	31 of 100 (Routine)
14 May 1940	Jeanerette 5 NW, US	daily rain	40.9 mm (1.6 in)	30.2 mm (1.2 in)	46 years	30 of 100 (Routine)
14 May 1940	Geraldton Town, AU	daily rain	31.8 mm (1.3 in)	20.6 mm (0.8 in)	13 years	29 of 100 (Routine)
14 May 1940	Mingenew, AU	daily rain	26.2 mm (1.0 in)	14.3 mm (0.6 in)	19 years	28 of 100 (Routine)
14 May 1940	Malvern, GB	daily rain	26.9 mm (1.1 in)	8.4 mm (0.33 in)	38 years	28 of 100 (Routine)
14 May 1940	Morgantown 1, US	daily high min	20.0 C (68.0 F)	2.8 C (5.0 F)	58 years	28 of 100 (Routine)
14 May 1940	Maryvale Station, AU	daily rain	30.0 mm (1.2 in)	19.1 mm (0.8 in)	14 years	27 of 100 (Routine)
14 May 1940	Port Arthur, CA	daily snowfall	6.9 cm (2.7 in)	3.1 cm (1.2 in)	51 years	27 of 100 (Routine)
14 May 1940	Wahpeton 3 N, US	monthly rain	51.3 mm (2.0 in)	0.2 mm (0.01 in)	43 years	27 of 100 (Routine)
14 May 1940	Campbell, US	daily rain	30.2 mm (1.2 in)	16.2 mm (0.6 in)	17 years	26 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

1813 to 1940

Records set or tied on this calendar date in each year from 1813 to 1940. 1940 had 324 records.

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

Records on 05-14 in each year
Year	Records
1813	1
1814	1
1815	1
1816	1
1820	1
1833	1
1837	1
1844	1
1846	1
1848	2
1849	1
1854	1
1855	2
1861	1
1862	1
1864	1
1866	1
1870	1
1873	1
1874	1
1875	2
1876	1
1878	2
1879	4
1881	1
1882	1
1883	3
1884	1
1885	4
1886	1
1890	3
1891	1
1892	1
1893	1
1895	3
1896	4
1897	6
1898	3
1899	2
1900	13
1901	4
1902	7
1903	7
1904	11
1905	4
1906	15
1907	17
1908	39
1909	44
1910	22
1911	15
1912	19
1913	125
1914	24
1915	196
1916	50
1917	79
1918	42
1919	29
1920	52
1921	61
1922	67
1923	94
1924	117
1925	59
1926	73
1927	173
1928	189
1929	176
1930	166
1931	733
1932	367
1933	653
1934	175
1935	255
1936	342
1937	432
1938	310
1939	323
1940	324
1941	569
1942	398
1943	543
1944	368
1945	665
1946	308
1947	282
1948	326
1949	302
1950	170
1951	444
1952	302
1953	730
1954	416
1955	600
1956	683
1957	580
1958	534
1959	501
1960	617
1961	627
1962	948
1963	422
1964	468
1965	313
1966	348
1967	715
1968	1,052
1969	638
1970	553
1971	562
1972	546
1973	802
1974	915
1975	386
1976	593
1977	1,109
1978	926
1979	481
1980	496
1981	494
1982	668
1983	1,176
1984	1,084
1985	915
1986	776
1987	1,145
1988	540
1989	521
1990	594
1991	1,181
1992	740
1993	989
1994	830
1995	2,263
1996	1,869
1997	887
1998	1,375
1999	817
2000	872
2001	1,197
2002	963
2003	959
2004	1,501
2005	748
2006	707
2007	957
2008	778
2009	693
2010	1,092
2011	888
2012	819
2013	1,218
2014	1,038
2015	559
2016	635
2017	393
2018	1,113
2019	483
2020	514
2021	404
2022	924
2023	591
2024	558
2025	785
2026	525

Download the Data

Data for records on 1940-05-14: 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	210
10 to 20	27
20 to 30	8
30 to 40	2
40 to 50	2
50 to 60	2