Weather Records on 20 May 1937

270 weather records were set or tied worldwide on 20 May 1937. Highest significance: Hata, IN.

Key Facts for 20 May 1937

On 20 May 1937, 270 weather records were set or tied at long-record stations worldwide.
95 were record highs and 51 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 262 daily.
Hata set a daily record precipitation of 62.0 mm (2.4 in) on 20 May 1937.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 457 records.

Record Map

270 stations

270 station records on 20 May 1937 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 1937: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hata	India	Record daily precipitation	62.0 mm (2.4 in)	39 of 100 (Notable)
Millinocket	United States	Record daily precipitation	41.1 mm (1.6 in)	39 of 100 (Notable)
Gorakhpur	India	Record daily precipitation	40.9 mm (1.6 in)	38 of 100 (Notable)
Samastipur	India	Record daily precipitation	39.4 mm (1.6 in)	37 of 100 (Notable)
Farmington	United States	Record daily precipitation	52.6 mm (2.1 in)	37 of 100 (Notable)
Tebessa	Algeria	Record high minimum temperature	24.0 C (75.2 F)	35 of 100 (Notable)
Bansgaon	India	Record daily precipitation	29.5 mm (1.2 in)	35 of 100 (Notable)
Partapganj	India	Record daily precipitation	52.1 mm (2.1 in)	33 of 100 (Routine)
Hallock	United States	Record daily precipitation	31.8 mm (1.3 in)	33 of 100 (Routine)
Ponce 4 E	Puerto Rico [United States]	Record daily precipitation	51.6 mm (2.0 in)	32 of 100 (Routine)
Langdon Exp Farm	United States	Record daily precipitation	29.2 mm (1.1 in)	32 of 100 (Routine)
St John's	Canada	Record high minimum temperature	12.2 C (54.0 F)	31 of 100 (Routine)
Darbhanga	India	Record daily precipitation	28.7 mm (1.1 in)	30 of 100 (Routine)
Rumford	United States	Record daily precipitation	39.6 mm (1.6 in)	30 of 100 (Routine)
Quesnel	Canada	Record daily precipitation	36.3 mm (1.4 in)	29 of 100 (Routine)
Motihari	India	Record daily precipitation	30.2 mm (1.2 in)	28 of 100 (Routine)
Ottapidaram	India	Record daily precipitation	29.2 mm (1.1 in)	27 of 100 (Routine)
Bloomfield	United States	Record daily precipitation	28.7 mm (1.1 in)	27 of 100 (Routine)
Kealakekua 2 28.7	United States	Record daily precipitation	57.7 mm (2.3 in)	27 of 100 (Routine)
Kohala 179.1	United States	Record daily precipitation	29.7 mm (1.2 in)	27 of 100 (Routine)
Loukahi	India	Record daily precipitation	31.8 mm (1.3 in)	26 of 100 (Routine)
Barharwa	India	Record daily precipitation	27.4 mm (1.1 in)	25 of 100 (Routine)
Deols Chateauroux Aerodrome de	France	Record daily precipitation	31.0 mm (1.2 in)	23 of 100 (Routine)
Kangra	India	Record daily precipitation	38.6 mm (1.5 in)	23 of 100 (Routine)
Kaanapali AP 453.1	United States	Record low maximum temperature	25.6 C (78.1 F)	23 of 100 (Routine)
Palacode	India	Record daily precipitation	50.8 mm (2.0 in)	22 of 100 (Routine)
Larned	United States	Record high minimum temperature	22.2 C (72.0 F)	22 of 100 (Routine)
Niulii 179	United States	Record daily precipitation	25.4 mm (1.0 in)	22 of 100 (Routine)
Boras	Sweden	Record high minimum temperature	12.0 C (53.6 F)	21 of 100 (Routine)
Carrabelle 1 NNW	United States	Record high maximum temperature	35.0 C (95.0 F)	21 of 100 (Routine)
St Georges	Canada	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Skegness	United Kingdom	Record daily precipitation	21.7 mm (0.9 in)	20 of 100 (Routine)
Hull	United Kingdom	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Lowestoft	United Kingdom	Record daily precipitation	21.9 mm (0.9 in)	20 of 100 (Routine)
Grafton	United States	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Cambridge Niab	United Kingdom	Record daily precipitation	18.1 mm (0.7 in)	20 of 100 (Routine)
Durham	United Kingdom	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Newton Rigg	United Kingdom	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Kilpuri	India	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Siwan	India	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Ghosi	India	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Berens River	Canada	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Bettiah	India	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Bansdih	India	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Khalilabad	India	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Auraiya	India	Record daily precipitation	4.6 mm (0.18 in)	20 of 100 (Routine)
Hawi 168	United States	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Haraiya	India	Record daily precipitation	13.0 mm (0.5 in)	20 of 100 (Routine)
Tanda	India	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Manatu	India	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Azamgarh	India	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Muhammadpur	India	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Nes Pa Hedmark	Norway	Record daily precipitation	11.0 mm (0.4 in)	20 of 100 (Routine)
Gardiner	United States	Record daily precipitation	37.8 mm (1.5 in)	20 of 100 (Routine)
Weston	United States	Record low minimum temperature	2.2 C (36.0 F)	20 of 100 (Routine)
Haleakala Rch 432	United States	Record daily precipitation	42.7 mm (1.7 in)	20 of 100 (Routine)
Tartu	Estonia	Record daily precipitation	21.8 mm (0.9 in)	19 of 100 (Routine)
Supaul	India	Record daily precipitation	31.5 mm (1.2 in)	19 of 100 (Routine)
Gopalganj Sr	India	Record daily precipitation	22.9 mm (0.9 in)	19 of 100 (Routine)
Jiwanpur Sagri	India	Record daily precipitation	7.1 mm (0.28 in)	19 of 100 (Routine)

Counts by Type and Timescale

270 records

Records set or tied on 20 May 1937 by type: Highest daily maximum 57, Lowest daily maximum 11, Highest daily minimum 38, Lowest daily minimum 40, Heaviest daily rainfall 124.

Records on 20 May 1937 by type
Record type	Records
Highest daily maximum	57
Lowest daily maximum	11
Highest daily minimum	38
Lowest daily minimum	40
Heaviest daily rainfall	124
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 May 1937 by timescale: all-time 0, monthly 8, daily 262.

How Much Records Were Beaten By

202 broken records

Margins by which the 202 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 44.7. Ties are not counted.

Top 20 by Significance

20 May 1937

Top 20 records on 20 May 1937 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 1937	Hata, IN	daily rain	62.0 mm (2.4 in)	44.7 mm (1.8 in)	19 years	39 of 100 (Notable)
20 May 1937	Millinocket, US	daily rain	41.1 mm (1.6 in)	28.4 mm (1.1 in)	7 years	39 of 100 (Notable)
20 May 1937	Gorakhpur, IN	daily rain	40.9 mm (1.6 in)	32.5 mm (1.3 in)	30 years	38 of 100 (Notable)
20 May 1937	Samastipur, IN	daily rain	39.4 mm (1.6 in)	39.4 mm (1.6 in)	36 years	37 of 100 (Notable)
20 May 1937	Farmington, US	daily rain	52.6 mm (2.1 in)	32.0 mm (1.3 in)	8 years	37 of 100 (Notable)
20 May 1937	Tebessa, DZ	daily high min	24.0 C (75.2 F)	6.0 C (10.8 F)	46 years	35 of 100 (Notable)
20 May 1937	Bansgaon, IN	daily rain	29.5 mm (1.2 in)	24.4 mm (1.0 in)	30 years	35 of 100 (Notable)
20 May 1937	Partapganj, IN	daily rain	52.1 mm (2.1 in)	31.3 mm (1.2 in)	30 years	33 of 100 (Routine)
20 May 1937	Hallock, US	daily rain	31.8 mm (1.3 in)	19.1 mm (0.8 in)	28 years	33 of 100 (Routine)
20 May 1937	Ponce 4 E, PR	daily rain	51.6 mm (2.0 in)	36.4 mm (1.4 in)	4 years	32 of 100 (Routine)
20 May 1937	Langdon Exp Farm, US	daily rain	29.2 mm (1.1 in)	13.7 mm (0.5 in)	28 years	32 of 100 (Routine)
20 May 1937	St John's, CA	daily high min	12.2 C (54.0 F)	3.3 C (5.9 F)	49 years	31 of 100 (Routine)
20 May 1937	Darbhanga, IN	daily rain	28.7 mm (1.1 in)	27.9 mm (1.1 in)	26 years	30 of 100 (Routine)
20 May 1937	Rumford, US	daily rain	39.6 mm (1.6 in)	24.6 mm (1.0 in)	8 years	30 of 100 (Routine)
20 May 1937	Quesnel, CA	monthly rain	36.3 mm (1.4 in)	5.8 mm (0.23 in)	0 years	29 of 100 (Routine)
20 May 1937	Motihari, IN	daily rain	30.2 mm (1.2 in)	28.4 mm (1.1 in)	26 years	28 of 100 (Routine)
20 May 1937	Ottapidaram, IN	daily rain	29.2 mm (1.1 in)	27.2 mm (1.1 in)	12 years	27 of 100 (Routine)
20 May 1937	Bloomfield, US	daily rain	28.7 mm (1.1 in)	14.7 mm (0.6 in)	8 years	27 of 100 (Routine)
20 May 1937	Kealakekua 2 28.7, US	daily rain	57.7 mm (2.3 in)	23.2 mm (0.9 in)	6 years	27 of 100 (Routine)
20 May 1937	Kohala 179.1, US	daily rain	29.7 mm (1.2 in)	19.3 mm (0.8 in)	8 years	27 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 1937

Records set or tied on this calendar date in each year from 1802 to 1937. 1937 had 270 records.

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

Records on 05-20 in each year
Year	Records
1802	1
1803	1
1804	1
1815	1
1825	1
1837	1
1844	1
1845	3
1847	1
1854	1
1858	3
1861	1
1862	1
1865	1
1867	1
1868	2
1870	3
1871	2
1876	2
1877	3
1879	1
1880	2
1884	2
1885	1
1887	2
1889	3
1890	3
1891	5
1892	3
1893	1
1894	6
1895	3
1896	3
1897	3
1898	4
1899	4
1900	1
1901	5
1902	11
1903	19
1904	4
1905	4
1906	22
1907	35
1908	23
1909	10
1910	20
1911	82
1912	20
1913	10
1914	16
1915	42
1916	29
1917	46
1918	92
1919	56
1920	44
1921	234
1922	40
1923	125
1924	189
1925	251
1926	128
1927	118
1928	138
1929	323
1930	129
1931	451
1932	689
1933	449
1934	582
1935	259
1936	207
1937	270
1938	331
1939	266
1940	337
1941	378
1942	337
1943	802
1944	315
1945	498
1946	339
1947	358
1948	514
1949	586
1950	327
1951	288
1952	615
1953	518
1954	822
1955	421
1956	565
1957	728
1958	378
1959	785
1960	612
1961	333
1962	773
1963	732
1964	517
1965	200
1966	416
1967	587
1968	743
1969	885
1970	310
1971	653
1972	612
1973	419
1974	893
1975	1,332
1976	837
1977	553
1978	534
1979	683
1980	751
1981	1,540
1982	554
1983	1,307
1984	867
1985	426
1986	790
1987	1,036
1988	805
1989	764
1990	722
1991	925
1992	1,200
1993	1,208
1994	778
1995	734
1996	1,749
1997	1,106
1998	1,124
1999	673
2000	991
2001	847
2002	2,299
2003	1,201
2004	746
2005	929
2006	1,006
2007	565
2008	999
2009	1,529
2010	1,011
2011	1,117
2012	604
2013	919
2014	629
2015	1,001
2016	692
2017	1,214
2018	460
2019	1,483
2020	784
2021	904
2022	1,643
2023	1,106
2024	478
2025	969
2026	696

Download the Data

Data for records on 1937-05-20: 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).

Histogram of margins by which records were beaten on 20 May 1937
Margin	Records
0 to 10	152
10 to 20	30
20 to 30	14
30 to 40	5
40 to 50	1