Weather Records on 25 May 1991

1,768 weather records were set or tied worldwide on 25 May 1991. Highest significance: Sandusky, US.

Key Facts for 25 May 1991

On 25 May 1991, 1,768 weather records were set or tied at long-record stations worldwide.
1,101 were record highs and 417 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 107 monthly and 1,659 daily.
Sandusky set a daily record precipitation of 71.1 mm (2.8 in) on 25 May 1991.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 434 records.

Record Map

1,768 stations

1,768 station records on 25 May 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 May 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sandusky	United States	Record daily precipitation	71.1 mm (2.8 in)	61 of 100 (Major)
Boxian	China	Record daily precipitation	172.7 mm (6.8 in)	56 of 100 (Notable)
Ignacio Lopez Rayon	Mexico	Record low minimum temperature	15.0 C (59.0 F)	50 of 100 (Notable)
Defiance	United States	Record high minimum temperature	21.7 C (71.1 F)	48 of 100 (Notable)
Chicago Midway AP 3SW	United States	Record daily precipitation	67.3 mm (2.6 in)	46 of 100 (Notable)
Jesus del Monte	Mexico	Record daily precipitation	27.9 mm (1.1 in)	45 of 100 (Notable)
Zhumadian	China	Record daily precipitation	69.2 mm (2.7 in)	44 of 100 (Notable)
Ganyu	China	Record daily precipitation	135.9 mm (5.4 in)	44 of 100 (Notable)
San Luis San Pedro	Mexico	Record high maximum temperature	40.6 C (105.1 F)	44 of 100 (Notable)
Corinth 5 WSW	United States	Record daily precipitation	102.9 mm (4.1 in)	44 of 100 (Notable)
Stilwell 5 NNW	United States	Record daily precipitation	88.9 mm (3.5 in)	44 of 100 (Notable)
Baltimore Customs House	United States	Record high maximum temperature	34.4 C (93.9 F)	44 of 100 (Notable)
Xuzhou	China	Record daily precipitation	77.4 mm (3.0 in)	43 of 100 (Notable)
Quincy Dam 21	United States	Record daily precipitation	60.5 mm (2.4 in)	42 of 100 (Notable)
Osawatomie	United States	Record daily precipitation	85.1 mm (3.4 in)	42 of 100 (Notable)
Indian Lake 2SW	United States	Record high minimum temperature	18.9 C (66.0 F)	42 of 100 (Notable)
Carthage	United States	Record daily precipitation	71.4 mm (2.8 in)	42 of 100 (Notable)
Kenosha Wwtp	United States	Record daily precipitation	45.2 mm (1.8 in)	42 of 100 (Notable)
Hvar	Croatia	Record low maximum temperature	18.7 C (65.7 F)	41 of 100 (Notable)
Buzau	Romania	Record low maximum temperature	10.4 C (50.7 F)	41 of 100 (Notable)
Hot Springs 1 NNE	United States	Record daily precipitation	53.8 mm (2.1 in)	41 of 100 (Notable)
Middletown 2 NW	United States	Record high minimum temperature	21.1 C (70.0 F)	41 of 100 (Notable)
Bucyrus	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Newark Liberty Intl AP	United States	Record high minimum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Hanford 1 S	United States	Record high minimum temperature	18.9 C (66.0 F)	40 of 100 (Notable)
Batesville	United States	Record high minimum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Kenton	United States	Record high minimum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Halmstad	Sweden	Record low minimum temperature	2.4 C (36.3 F)	39 of 100 (Notable)
Columbus	United States	Record high minimum temperature	21.1 C (70.0 F)	39 of 100 (Notable)
Delphi 2 N	United States	Record high minimum temperature	20.6 C (69.1 F)	39 of 100 (Notable)
Yale 1 NNW	United States	Record daily precipitation	46.0 mm (1.8 in)	39 of 100 (Notable)
Moorestown 4 E	United States	Record high maximum temperature	35.0 C (95.0 F)	39 of 100 (Notable)
Auburn	United States	Record high minimum temperature	17.8 C (64.0 F)	39 of 100 (Notable)
Hemlock	United States	Record high minimum temperature	20.0 C (68.0 F)	39 of 100 (Notable)
Mohonk Lake	United States	Record high maximum temperature	30.6 C (87.1 F)	39 of 100 (Notable)
Saint Johnsbury	United States	Record high minimum temperature	18.9 C (66.0 F)	39 of 100 (Notable)
Bjelasnica	Bosnia and Herzegovina	Record low maximum temperature	-4.5 C (23.9 F)	38 of 100 (Notable)
Shijiazhuang	China	Record daily precipitation	37.4 mm (1.5 in)	38 of 100 (Notable)
Huimin	China	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Zagreb-Gric	Croatia	Record low minimum temperature	5.6 C (42.1 F)	38 of 100 (Notable)
Tihosuco	Mexico	Record daily precipitation	73.2 mm (2.9 in)	38 of 100 (Notable)
Bloomington Indiana UNIV	United States	Record high minimum temperature	21.7 C (71.1 F)	38 of 100 (Notable)
Hagerstown 1E	United States	Record high maximum temperature	32.8 C (91.0 F)	38 of 100 (Notable)
Towson	United States	Record high maximum temperature	33.3 C (91.9 F)	38 of 100 (Notable)
Woodstock	United States	Record high maximum temperature	34.4 C (93.9 F)	38 of 100 (Notable)
Hastings	United States	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Owosso Wwtp	United States	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Carter Twr	United States	Record daily precipitation	88.9 mm (3.5 in)	38 of 100 (Notable)
Martinsburg E W Virginia Rgnl	United States	Record high minimum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Tillabery	Niger	Record daily precipitation	46.0 mm (1.8 in)	37 of 100 (Notable)
Ljubljana Bezigrad	Slovenia	Record low minimum temperature	2.2 C (36.0 F)	37 of 100 (Notable)
Dover	United States	Record high maximum temperature	34.4 C (93.9 F)	37 of 100 (Notable)
Champaign 3S	United States	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Frederick Police Brks	United States	Record high maximum temperature	34.4 C (93.9 F)	37 of 100 (Notable)
Amherst	United States	Record high minimum temperature	18.9 C (66.0 F)	37 of 100 (Notable)
Louisville	United States	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Selinsgrove 2 S	United States	Record high minimum temperature	18.9 C (66.0 F)	37 of 100 (Notable)
Franklin Sewage Plt	United States	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Warsaw 2 NW	United States	Record high maximum temperature	33.9 C (93.0 F)	37 of 100 (Notable)
Ft Myers Page Fld AP	United States	Record high minimum temperature	23.9 C (75.0 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,768 records

Records set or tied on 25 May 1991 by type: Highest daily maximum 340, Lowest daily maximum 209, Highest daily minimum 761, Lowest daily minimum 208, Heaviest daily rainfall 249, Heaviest daily snowfall 1.

Records on 25 May 1991 by type
Record type	Records
Highest daily maximum	340
Lowest daily maximum	209
Highest daily minimum	761
Lowest daily minimum	208
Heaviest daily rainfall	249
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 25 May 1991 by timescale: all-time 2, monthly 107, daily 1,659.

How Much Records Were Beaten By

1,370 broken records

Margins by which the 1,370 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 61.7. Ties are not counted.

Top 20 by Significance

25 May 1991

Top 20 records on 25 May 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 May 1991	Sandusky, US	daily rain	71.1 mm (2.8 in)	29.2 mm (1.1 in)	72 years	61 of 100 (Major)
25 May 1991	Boxian, CN	monthly rain	172.7 mm (6.8 in)	58.4 mm (2.3 in)	17 years	56 of 100 (Notable)
25 May 1991	Ignacio Lopez Rayon, MX	daily low min	15.0 C (59.0 F)	5.6 C (10.1 F)	24 years	50 of 100 (Notable)
25 May 1991	Defiance, US	monthly high min	21.7 C (71.1 F)	0.6 C (1.1 F)	95 years	48 of 100 (Notable)
25 May 1991	Chicago Midway AP 3SW, US	daily rain	67.3 mm (2.6 in)	47.7 mm (1.9 in)	0 years	46 of 100 (Notable)
25 May 1991	Jesus del Monte, MX	daily rain	27.9 mm (1.1 in)	19.5 mm (0.8 in)	24 years	45 of 100 (Notable)
25 May 1991	Zhumadian, CN	daily rain	69.2 mm (2.7 in)	57.1 mm (2.2 in)	4 years	44 of 100 (Notable)
25 May 1991	Ganyu, CN	monthly rain	135.9 mm (5.4 in)	37.0 mm (1.5 in)	6 years	44 of 100 (Notable)
25 May 1991	San Luis San Pedro, MX	daily high max	40.6 C (105.1 F)	5.0 C (9.0 F)	28 years	44 of 100 (Notable)
25 May 1991	Corinth 5 WSW, US	daily rain	102.9 mm (4.1 in)	53.9 mm (2.1 in)	4 years	44 of 100 (Notable)
25 May 1991	Stilwell 5 NNW, US	daily rain	88.9 mm (3.5 in)	52.8 mm (2.1 in)	33 years	44 of 100 (Notable)
25 May 1991	Baltimore Customs House, US	daily high max	34.4 C (93.9 F)	2.2 C (4.0 F)	110 years	44 of 100 (Notable)
25 May 1991	Xuzhou, CN	daily rain	77.4 mm (3.0 in)	61.7 mm (2.4 in)	10 years	43 of 100 (Notable)
25 May 1991	Quincy Dam 21, US	daily rain	60.5 mm (2.4 in)	31.8 mm (1.3 in)	38 years	42 of 100 (Notable)
25 May 1991	Osawatomie, US	daily rain	85.1 mm (3.4 in)	38.6 mm (1.5 in)	38 years	42 of 100 (Notable)
25 May 1991	Indian Lake 2SW, US	monthly high min	18.9 C (66.0 F)	1.1 C (2.0 F)	70 years	42 of 100 (Notable)
25 May 1991	Carthage, US	daily rain	71.4 mm (2.8 in)	43.2 mm (1.7 in)	36 years	42 of 100 (Notable)
25 May 1991	Kenosha Wwtp, US	daily rain	45.2 mm (1.8 in)	23.6 mm (0.9 in)	44 years	42 of 100 (Notable)
25 May 1991	Hvar, HR	daily low max	18.7 C (65.7 F)	0.3 C (0.5 F)	103 years	41 of 100 (Notable)
25 May 1991	Buzau, RO	daily low max	10.4 C (50.7 F)	3.1 C (5.6 F)	88 years	41 of 100 (Notable)

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 1991

Records set or tied on this calendar date in each year from 1793 to 1991. 1991 had 1,768 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 1991-05-25: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 10	1,270
10 to 20	51
20 to 30	22
30 to 40	17
40 to 50	2
50 to 60	7
60 to 70	1