Weather Records on 15 May 1937

373 weather records were set or tied worldwide on 15 May 1937. Highest significance: Mohonk Lake, US.

Key Facts for 15 May 1937

On 15 May 1937, 373 weather records were set or tied at long-record stations worldwide.
102 were record highs and 69 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 365 daily.
Mohonk Lake set a monthly record daily precipitation of 106.7 mm (4.2 in) on 15 May 1937.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 431 records.

Record Map

373 stations

373 station records on 15 May 1937 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 1937: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mohonk Lake	United States	Record daily precipitation	106.7 mm (4.2 in)	55 of 100 (Notable)
Hoofddorp	Netherlands	Record daily precipitation	25.9 mm (1.0 in)	53 of 100 (Notable)
Old Noarlunga Post Office	Australia	Record daily precipitation	30.7 mm (1.2 in)	52 of 100 (Notable)
Thirthahalli	India	Record daily precipitation	71.1 mm (2.8 in)	50 of 100 (Notable)
Vernon	United States	Record daily precipitation	82.0 mm (3.2 in)	47 of 100 (Notable)
Chicoutimi	Canada	Record daily snowfall	21.8 cm (8.6 in)	46 of 100 (Notable)
Gabriels	United States	Record daily precipitation	55.9 mm (2.2 in)	46 of 100 (Notable)
Mundoora	Australia	Record daily precipitation	30.5 mm (1.2 in)	43 of 100 (Notable)
Spier Falls	United States	Record daily precipitation	58.4 mm (2.3 in)	41 of 100 (Notable)
Cream Hill	United States	Record daily precipitation	44.2 mm (1.7 in)	40 of 100 (Notable)
Tribes Hill	United States	Record daily precipitation	43.2 mm (1.7 in)	38 of 100 (Notable)
Glenelg Post Office	Australia	Record daily precipitation	29.7 mm (1.2 in)	35 of 100 (Notable)
Northfield	United States	Record daily precipitation	31.2 mm (1.2 in)	35 of 100 (Notable)
Glen Garrie	Australia	Record daily precipitation	41.9 mm (1.6 in)	34 of 100 (Routine)
Chicoutimi	Canada	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Farmington	United States	Record daily precipitation	44.7 mm (1.8 in)	34 of 100 (Routine)
Cape Borda Comparison	Australia	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)
Chelsea	United States	Record daily precipitation	42.7 mm (1.7 in)	33 of 100 (Routine)
Saint Johnsbury	United States	Record daily precipitation	29.7 mm (1.2 in)	33 of 100 (Routine)
North Bridgton	United States	Record daily precipitation	49.5 mm (1.9 in)	31 of 100 (Routine)
Matamoras	United States	Record daily precipitation	58.4 mm (2.3 in)	31 of 100 (Routine)
Franklin	United States	Record daily precipitation	36.8 mm (1.4 in)	30 of 100 (Routine)
Little Falls	United States	Record daily precipitation	58.4 mm (2.3 in)	30 of 100 (Routine)
Sussex 1 NW	United States	Record daily precipitation	40.6 mm (1.6 in)	29 of 100 (Routine)
Pithoragarh	India	Record daily precipitation	33.8 mm (1.3 in)	28 of 100 (Routine)
Cowes	Australia	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Waterville Wwtp	United States	Record daily precipitation	48.3 mm (1.9 in)	27 of 100 (Routine)
Layton 3 NW	United States	Record daily precipitation	29.7 mm (1.2 in)	27 of 100 (Routine)
Staunton Wtp	United States	Record daily precipitation	26.2 mm (1.0 in)	27 of 100 (Routine)
Brockville	Canada	Record low maximum temperature	8.9 C (48.0 F)	26 of 100 (Routine)
Dannemora	United States	Record daily precipitation	31.8 mm (1.3 in)	26 of 100 (Routine)
Cornwall	United States	Record low maximum temperature	6.7 C (44.1 F)	26 of 100 (Routine)
Bethlehem Lehigh UNIV	United States	Record daily precipitation	35.3 mm (1.4 in)	25 of 100 (Routine)
Cornwall	United States	Record daily precipitation	30.5 mm (1.2 in)	25 of 100 (Routine)
Charlotteburg Rsvr	United States	Record daily precipitation	35.6 mm (1.4 in)	24 of 100 (Routine)
Quebec	Canada	Record low maximum temperature	4.4 C (39.9 F)	23 of 100 (Routine)
El Paso	United States	Record high maximum temperature	36.7 C (98.1 F)	23 of 100 (Routine)
Red Hill South	Australia	Record daily precipitation	30.5 mm (1.2 in)	22 of 100 (Routine)
Atyrau	Kazakhstan	Record low minimum temperature	4.8 C (40.6 F)	22 of 100 (Routine)
Colchester 2 W	United States	Record daily precipitation	45.5 mm (1.8 in)	22 of 100 (Routine)
Lawrence	United States	Record daily precipitation	30.2 mm (1.2 in)	22 of 100 (Routine)
Alamogordo 1	United States	Record high maximum temperature	36.1 C (97.0 F)	22 of 100 (Routine)
Socorro	United States	Record high maximum temperature	37.2 C (99.0 F)	22 of 100 (Routine)
University Exp STN	United States	Record low minimum temperature	-7.2 C (19.0 F)	22 of 100 (Routine)
Sterling	United States	Record daily precipitation	36.3 mm (1.4 in)	21 of 100 (Routine)
Culvers Lake	United States	Record daily precipitation	35.6 mm (1.4 in)	21 of 100 (Routine)
Wappingers Falls	United States	Record daily precipitation	41.1 mm (1.6 in)	21 of 100 (Routine)
Bloomfield	United States	Record daily precipitation	32.5 mm (1.3 in)	21 of 100 (Routine)
Burlington	United States	Record daily precipitation	27.2 mm (1.1 in)	21 of 100 (Routine)
Cavendish	United States	Record daily precipitation	31.5 mm (1.2 in)	21 of 100 (Routine)
Hoorn	Netherlands	Record daily precipitation	21.2 mm (0.8 in)	20 of 100 (Routine)
St. Petersburg	Russia	Record daily precipitation	23.0 mm (0.9 in)	20 of 100 (Routine)
Hastings Post Office	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Aldinga Post Office	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Wallaroo	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Cape Schanck Lighthouse	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Grantville	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Adelaide West Terrace	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Clyde State School	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Chatham	Canada	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)

Counts by Type and Timescale

373 records

Records set or tied on 15 May 1937 by type: Highest daily maximum 68, Lowest daily maximum 36, Highest daily minimum 34, Lowest daily minimum 33, Heaviest daily rainfall 201, Heaviest daily snowfall 1.

Records on 15 May 1937 by type
Record type	Records
Highest daily maximum	68
Lowest daily maximum	36
Highest daily minimum	34
Lowest daily minimum	33
Heaviest daily rainfall	201
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 15 May 1937 by timescale: all-time 0, monthly 8, daily 365.

How Much Records Were Beaten By

310 broken records

Margins by which the 310 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 106.0. Ties are not counted.

Top 20 by Significance

15 May 1937

Top 20 records on 15 May 1937 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 1937	Mohonk Lake, US	monthly rain	106.7 mm (4.2 in)	37.4 mm (1.5 in)	28 years	55 of 100 (Notable)
15 May 1937	Hoofddorp, NL	daily rain	25.9 mm (1.0 in)	15.9 mm (0.6 in)	35 years	53 of 100 (Notable)
15 May 1937	Old Noarlunga Post Office, AU	daily rain	30.7 mm (1.2 in)	23.1 mm (0.9 in)	22 years	52 of 100 (Notable)
15 May 1937	Thirthahalli, IN	daily rain	71.1 mm (2.8 in)	55.6 mm (2.2 in)	34 years	50 of 100 (Notable)
15 May 1937	Vernon, US	monthly rain	82.0 mm (3.2 in)	27.6 mm (1.1 in)	16 years	47 of 100 (Notable)
15 May 1937	Chicoutimi, CA	monthly snowfall	21.8 cm (8.6 in)	10.6 cm (4.2 in)	30 years	46 of 100 (Notable)
15 May 1937	Gabriels, US	daily rain	55.9 mm (2.2 in)	34.6 mm (1.4 in)	12 years	46 of 100 (Notable)
15 May 1937	Mundoora, AU	daily rain	30.5 mm (1.2 in)	19.3 mm (0.8 in)	51 years	43 of 100 (Notable)
15 May 1937	Spier Falls, US	daily rain	58.4 mm (2.3 in)	32.2 mm (1.3 in)	7 years	41 of 100 (Notable)
15 May 1937	Cream Hill, US	daily rain	44.2 mm (1.7 in)	31.5 mm (1.2 in)	10 years	40 of 100 (Notable)
15 May 1937	Tribes Hill, US	daily rain	43.2 mm (1.7 in)	25.4 mm (1.0 in)	32 years	38 of 100 (Notable)
15 May 1937	Glenelg Post Office, AU	daily rain	29.7 mm (1.2 in)	19.0 mm (0.7 in)	4 years	35 of 100 (Notable)
15 May 1937	Northfield, US	daily rain	31.2 mm (1.2 in)	19.5 mm (0.8 in)	7 years	35 of 100 (Notable)
15 May 1937	Glen Garrie, AU	monthly rain	41.9 mm (1.6 in)	8.4 mm (0.33 in)	29 years	34 of 100 (Routine)
15 May 1937	Chicoutimi, CA	daily rain	26.4 mm (1.0 in)	7.3 mm (0.29 in)	57 years	34 of 100 (Routine)
15 May 1937	Farmington, US	daily rain	44.7 mm (1.8 in)	29.2 mm (1.1 in)	7 years	34 of 100 (Routine)
15 May 1937	Cape Borda Comparison, AU	daily rain	30.0 mm (1.2 in)	14.0 mm (0.6 in)	16 years	33 of 100 (Routine)
15 May 1937	Chelsea, US	daily rain	42.7 mm (1.7 in)	21.1 mm (0.8 in)	6 years	33 of 100 (Routine)
15 May 1937	Saint Johnsbury, US	daily rain	29.7 mm (1.2 in)	14.2 mm (0.6 in)	32 years	33 of 100 (Routine)
15 May 1937	North Bridgton, US	daily rain	49.5 mm (1.9 in)	30.2 mm (1.2 in)	8 years	31 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

1820 to 1937

Records set or tied on this calendar date in each year from 1820 to 1937. 1937 had 373 records.

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

Records on 05-15 in each year
Year	Records
1820	1
1825	1
1831	1
1832	1
1837	2
1845	1
1847	2
1848	1
1855	2
1857	2
1859	1
1862	1
1863	1
1865	1
1866	2
1867	1
1868	2
1870	1
1871	3
1874	2
1876	4
1878	1
1879	2
1881	1
1883	1
1885	1
1886	2
1888	3
1891	3
1893	5
1894	2
1895	4
1896	2
1897	4
1898	3
1899	9
1900	9
1901	2
1902	9
1903	4
1904	13
1905	16
1906	10
1907	27
1908	25
1909	89
1910	27
1911	27
1912	26
1913	60
1914	16
1915	236
1916	27
1917	80
1918	133
1919	25
1920	58
1921	92
1922	30
1923	125
1924	174
1925	100
1926	161
1927	191
1928	144
1929	161
1930	136
1931	459
1932	368
1933	439
1934	227
1935	288
1936	372
1937	373
1938	393
1939	351
1940	179
1941	454
1942	701
1943	568
1944	630
1945	588
1946	238
1947	334
1948	264
1949	363
1950	260
1951	736
1952	476
1953	426
1954	355
1955	538
1956	466
1957	521
1958	605
1959	764
1960	291
1961	508
1962	1,128
1963	782
1964	347
1965	320
1966	389
1967	609
1968	1,019
1969	790
1970	512
1971	351
1972	484
1973	818
1974	1,230
1975	372
1976	803
1977	1,186
1978	922
1979	404
1980	625
1981	586
1982	500
1983	1,215
1984	1,059
1985	649
1986	679
1987	1,073
1988	643
1989	552
1990	776
1991	1,179
1992	944
1993	784
1994	910
1995	1,750
1996	1,452
1997	1,175
1998	1,641
1999	810
2000	850
2001	1,280
2002	801
2003	1,023
2004	1,046
2005	767
2006	955
2007	949
2008	995
2009	675
2010	1,088
2011	1,298
2012	751
2013	1,081
2014	1,411
2015	717
2016	890
2017	435
2018	1,074
2019	627
2020	472
2021	412
2022	847
2023	566
2024	596
2025	801
2026	481

Download the Data

Data for records on 1937-05-15: 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 20	292
20 to 40	16
40 to 60	1
60 to 80	0
80 to 100	0
100 to 120	1