Weather Records on 25 May 1940

259 weather records were set or tied worldwide on 25 May 1940. Highest significance: Palacode, IN.

Key Facts for 25 May 1940

On 25 May 1940, 259 weather records were set or tied at long-record stations worldwide.
46 were record highs and 125 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 259 daily.
Palacode set a daily record precipitation of 90.7 mm (3.6 in) on 25 May 1940.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 444 records.

Record Map

259 stations

259 station records on 25 May 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 May 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Palacode	India	Record daily precipitation	90.7 mm (3.6 in)	51 of 100 (Notable)
Shujalpur	India	Record daily precipitation	30.5 mm (1.2 in)	48 of 100 (Notable)
Harur	India	Record daily precipitation	65.8 mm (2.6 in)	44 of 100 (Notable)
Ogdensburg 4 NE	United States	Record daily precipitation	32.5 mm (1.3 in)	43 of 100 (Notable)
Lebanon 3 W	United States	Record daily precipitation	59.2 mm (2.3 in)	42 of 100 (Notable)
Kamuthi	India	Record daily precipitation	55.4 mm (2.2 in)	40 of 100 (Notable)
Union 3 SSE	United States	Record daily precipitation	52.1 mm (2.1 in)	37 of 100 (Notable)
Belleville	Canada	Record daily precipitation	32.3 mm (1.3 in)	36 of 100 (Notable)
Hinton 1	United States	Record daily precipitation	49.8 mm (2.0 in)	34 of 100 (Routine)
Pembroke Eddy Match	Canada	Record daily precipitation	27.2 mm (1.1 in)	29 of 100 (Routine)
Parnu	Estonia	Record daily precipitation	25.2 mm (1.0 in)	29 of 100 (Routine)
Louisburg	United States	Record daily precipitation	43.4 mm (1.7 in)	28 of 100 (Routine)
Ottawa Cda	Canada	Record daily precipitation	34.0 mm (1.3 in)	27 of 100 (Routine)
Rugby	United States	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Velikie Luki	Russia	Record low minimum temperature	-3.3 C (26.1 F)	26 of 100 (Routine)
Rockingham	United States	Record daily precipitation	32.3 mm (1.3 in)	26 of 100 (Routine)
Buchanan	United States	Record daily precipitation	30.2 mm (1.2 in)	26 of 100 (Routine)
Chamarajnagar	India	Record daily precipitation	39.4 mm (1.6 in)	25 of 100 (Routine)
Coldwater	Canada	Record daily precipitation	30.7 mm (1.2 in)	24 of 100 (Routine)
Ashland	United States	Record daily precipitation	33.0 mm (1.3 in)	24 of 100 (Routine)
Blacksburg	United States	Record daily precipitation	37.6 mm (1.5 in)	24 of 100 (Routine)
Srirangpatnam	India	Record daily precipitation	57.7 mm (2.3 in)	23 of 100 (Routine)
Golaghat	India	Record daily precipitation	71.1 mm (2.8 in)	22 of 100 (Routine)
Kudligi	India	Record daily precipitation	38.4 mm (1.5 in)	22 of 100 (Routine)
Zametchino	Russia	Record low minimum temperature	-3.1 C (26.4 F)	22 of 100 (Routine)
Bridgeport	United States	Record low minimum temperature	-0.6 C (30.9 F)	22 of 100 (Routine)
Fairmont	United States	Record daily precipitation	29.5 mm (1.2 in)	22 of 100 (Routine)
Pitea	Sweden	Record low maximum temperature	6.5 C (43.7 F)	21 of 100 (Routine)
Black Rock	United States	Record daily precipitation	9.4 mm (0.37 in)	20 of 100 (Routine)
Roros	Norway	Record daily precipitation	9.4 mm (0.37 in)	20 of 100 (Routine)
Butte Bert Mooney AP	United States	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Tranqubar	India	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Bucyrus	United States	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Altoona Horseshoe Curv	United States	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Brockville	Canada	Record high minimum temperature	18.3 C (64.9 F)	20 of 100 (Routine)
Lakefield	Canada	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Atyrau	Kazakhstan	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Kjahta	Russia	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Clinton Forestry HQ	United States	Record low maximum temperature	21.7 C (71.1 F)	20 of 100 (Routine)
Trenton 2	United States	Record low maximum temperature	15.0 C (59.0 F)	20 of 100 (Routine)
Chapel Hill 2 W	United States	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Winnemucca AP	United States	Record high minimum temperature	12.8 C (55.0 F)	20 of 100 (Routine)
Lacombe Cda	Canada	Record high minimum temperature	16.1 C (61.0 F)	19 of 100 (Routine)
Kharsawan	India	Record daily precipitation	36.8 mm (1.4 in)	19 of 100 (Routine)
Sankari	India	Record daily precipitation	37.3 mm (1.5 in)	19 of 100 (Routine)
Nagappattinam	India	Record daily precipitation	17.5 mm (0.7 in)	19 of 100 (Routine)
Scottsboro	United States	Record low minimum temperature	5.6 C (42.1 F)	19 of 100 (Routine)
Wray	United States	Record low minimum temperature	1.1 C (34.0 F)	19 of 100 (Routine)
Saint Maries	United States	Record high minimum temperature	12.2 C (54.0 F)	19 of 100 (Routine)
Colby	United States	Record low minimum temperature	2.8 C (37.0 F)	19 of 100 (Routine)
Dresden	United States	Record low minimum temperature	3.3 C (37.9 F)	19 of 100 (Routine)
Camden 3 W	United States	Record daily precipitation	15.7 mm (0.6 in)	19 of 100 (Routine)
Spearfish	United States	Record low minimum temperature	1.1 C (34.0 F)	19 of 100 (Routine)
Marlinton	United States	Record daily precipitation	34.3 mm (1.4 in)	19 of 100 (Routine)
Masset Airport	Canada	Record high minimum temperature	9.4 C (48.9 F)	18 of 100 (Routine)
Big Creek	Canada	Record daily precipitation	10.7 mm (0.4 in)	18 of 100 (Routine)
Golden A	Canada	Record daily precipitation	7.9 mm (0.31 in)	18 of 100 (Routine)
Madurai	India	Record daily precipitation	17.5 mm (0.7 in)	18 of 100 (Routine)
Kilanilai	India	Record daily precipitation	7.6 mm (0.30 in)	18 of 100 (Routine)
Harnosand	Sweden	Record low maximum temperature	5.9 C (42.6 F)	18 of 100 (Routine)

Counts by Type and Timescale

259 records

Records set or tied on 25 May 1940 by type: Highest daily maximum 9, Lowest daily maximum 56, Highest daily minimum 37, Lowest daily minimum 69, Heaviest daily rainfall 88.

Records on 25 May 1940 by type
Record type	Records
Highest daily maximum	9
Lowest daily maximum	56
Highest daily minimum	37
Lowest daily minimum	69
Heaviest daily rainfall	88
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 25 May 1940 by timescale: all-time 0, monthly 0, daily 259.

How Much Records Were Beaten By

197 broken records

Margins by which the 197 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.1. Ties are not counted.

Top 20 by Significance

25 May 1940

Top 20 records on 25 May 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 May 1940	Palacode, IN	daily rain	90.7 mm (3.6 in)	67.1 mm (2.6 in)	29 years	51 of 100 (Notable)
25 May 1940	Shujalpur, IN	daily rain	30.5 mm (1.2 in)	30.5 mm (1.2 in)	39 years	48 of 100 (Notable)
25 May 1940	Harur, IN	daily rain	65.8 mm (2.6 in)	52.1 mm (2.1 in)	29 years	44 of 100 (Notable)
25 May 1940	Ogdensburg 4 NE, US	daily rain	32.5 mm (1.3 in)	22.8 mm (0.9 in)	42 years	43 of 100 (Notable)
25 May 1940	Lebanon 3 W, US	daily rain	59.2 mm (2.3 in)	32.5 mm (1.3 in)	24 years	42 of 100 (Notable)
25 May 1940	Kamuthi, IN	daily rain	55.4 mm (2.2 in)	39.4 mm (1.6 in)	17 years	40 of 100 (Notable)
25 May 1940	Union 3 SSE, US	daily rain	52.1 mm (2.1 in)	26.7 mm (1.1 in)	19 years	37 of 100 (Notable)
25 May 1940	Belleville, CA	daily rain	32.3 mm (1.3 in)	19.9 mm (0.8 in)	19 years	36 of 100 (Notable)
25 May 1940	Hinton 1, US	daily rain	49.8 mm (2.0 in)	21.9 mm (0.9 in)	20 years	34 of 100 (Routine)
25 May 1940	Pembroke Eddy Match, CA	daily rain	27.2 mm (1.1 in)	17.3 mm (0.7 in)	19 years	29 of 100 (Routine)
25 May 1940	Parnu, EE	daily rain	25.2 mm (1.0 in)	8.9 mm (0.35 in)	17 years	29 of 100 (Routine)
25 May 1940	Louisburg, US	daily rain	43.4 mm (1.7 in)	19.3 mm (0.8 in)	30 years	28 of 100 (Routine)
25 May 1940	Ottawa Cda, CA	daily rain	34.0 mm (1.3 in)	15.2 mm (0.6 in)	12 years	27 of 100 (Routine)
25 May 1940	Rugby, US	daily rain	25.4 mm (1.0 in)	9.7 mm (0.38 in)	49 years	27 of 100 (Routine)
25 May 1940	Velikie Luki, RU	daily low min	-3.3 C (26.1 F)	4.5 C (8.1 F)	36 years	26 of 100 (Routine)
25 May 1940	Rockingham, US	daily rain	32.3 mm (1.3 in)	15.8 mm (0.6 in)	39 years	26 of 100 (Routine)
25 May 1940	Buchanan, US	daily rain	30.2 mm (1.2 in)	15.5 mm (0.6 in)	33 years	26 of 100 (Routine)
25 May 1940	Chamarajnagar, IN	daily rain	39.4 mm (1.6 in)	14.8 mm (0.6 in)	39 years	25 of 100 (Routine)
25 May 1940	Coldwater, CA	daily rain	30.7 mm (1.2 in)	4.5 mm (0.18 in)	49 years	24 of 100 (Routine)
25 May 1940	Ashland, US	daily rain	33.0 mm (1.3 in)	7.6 mm (0.30 in)	43 years	24 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 1940

Records set or tied on this calendar date in each year from 1793 to 1940. 1940 had 259 records.

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

Records on 05-25 in each year
Year	Records
1793	1
1795	1
1797	1
1824	1
1830	1
1837	2
1839	1
1841	1
1846	2
1847	3
1848	1
1852	1
1864	1
1865	1
1866	2
1867	2
1868	3
1869	1
1870	1
1875	1
1879	2
1880	3
1881	1
1883	1
1886	1
1887	2
1889	3
1890	12
1891	1
1892	1
1893	1
1894	1
1895	3
1897	1
1898	5
1899	2
1900	5
1901	10
1902	2
1903	7
1904	14
1905	9
1906	41
1907	18
1908	25
1909	20
1910	35
1911	15
1912	21
1913	46
1914	33
1915	20
1916	33
1917	53
1918	22
1919	36
1920	59
1921	208
1922	118
1923	113
1924	277
1925	675
1926	221
1927	240
1928	301
1929	122
1930	156
1931	262
1932	358
1933	400
1934	219
1935	301
1936	407
1937	176
1938	456
1939	322
1940	259
1941	297
1942	534
1943	567
1944	392
1945	225
1946	371
1947	588
1948	317
1949	371
1950	644
1951	542
1952	436
1953	1,024
1954	284
1955	1,068
1956	940
1957	463
1958	439
1959	316
1960	493
1961	254
1962	567
1963	352
1964	716
1965	662
1966	295
1967	946
1968	394
1969	367
1970	385
1971	700
1972	477
1973	595
1974	820
1975	922
1976	412
1977	946
1978	581
1979	1,432
1980	1,160
1981	1,072
1982	714
1983	1,147
1984	677
1985	519
1986	500
1987	703
1988	635
1989	1,190
1990	656
1991	1,768
1992	1,682
1993	824
1994	773
1995	1,546
1996	1,304
1997	1,513
1998	882
1999	708
2000	1,417
2001	1,201
2002	1,001
2003	918
2004	903
2005	909
2006	801
2007	1,420
2008	840
2009	1,088
2010	1,512
2011	1,180
2012	1,616
2013	912
2014	761
2015	407
2016	429
2017	829
2018	800
2019	641
2020	564
2021	505
2022	752
2023	305
2024	688
2025	527
2026	913

Download the Data

Data for records on 1940-05-25: 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	172
10 to 20	14
20 to 30	6
30 to 40	3
40 to 50	0
50 to 60	1
60 to 70	1