Weather Records on 25 May 1964

716 weather records were set or tied worldwide on 25 May 1964. Highest significance: Tobolsk, RU.

Key Facts for 25 May 1964

On 25 May 1964, 716 weather records were set or tied at long-record stations worldwide.
471 were record highs and 125 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 15 monthly and 701 daily.
Tobolsk set a daily record precipitation of 32.4 mm (1.3 in) on 25 May 1964.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 441 records.

Record Map

716 stations

716 station records on 25 May 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 May 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tobolsk	Russia	Record daily precipitation	32.4 mm (1.3 in)	61 of 100 (Major)
Belle Isle	Canada	Record daily precipitation	56.6 mm (2.2 in)	59 of 100 (Notable)
Hakalau 142	United States	Record daily precipitation	160.5 mm (6.3 in)	58 of 100 (Notable)
Honohina 137	United States	Record daily precipitation	157.2 mm (6.2 in)	58 of 100 (Notable)
Kohala Mis 175.1	United States	Record daily precipitation	58.9 mm (2.3 in)	58 of 100 (Notable)
Papaikou 144.1	United States	Record daily precipitation	126.5 mm (5.0 in)	58 of 100 (Notable)
Pte de Chassiron	France	Record daily precipitation	36.3 mm (1.4 in)	50 of 100 (Notable)
Honomu Mauka 138	United States	Record daily precipitation	225.3 mm (8.9 in)	49 of 100 (Notable)
Pointe Au Pere	Canada	Record daily precipitation	43.2 mm (1.7 in)	45 of 100 (Notable)
Kaiserslautern	Germany	Record daily precipitation	25.5 mm (1.0 in)	42 of 100 (Notable)
Chengam	India	Record daily precipitation	73.0 mm (2.9 in)	41 of 100 (Notable)
Cape May 2 NW	United States	Record high maximum temperature	30.6 C (87.1 F)	41 of 100 (Notable)
Mtn View 91	United States	Record daily precipitation	111.8 mm (4.4 in)	40 of 100 (Notable)
Bernalillo	United States	Record high minimum temperature	17.2 C (63.0 F)	38 of 100 (Notable)
Stillwater Rsvr	United States	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Warren	United States	Record daily precipitation	35.6 mm (1.4 in)	37 of 100 (Notable)
St Andrews	Canada	Record high minimum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
Evanston 1 E	United States	Record high minimum temperature	12.2 C (54.0 F)	36 of 100 (Notable)
Haina 214	United States	Record daily precipitation	36.8 mm (1.4 in)	36 of 100 (Notable)
Valdez WSO	United States	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Paterson	United States	Record high minimum temperature	21.1 C (70.0 F)	35 of 100 (Notable)
Setauket Strong	United States	Record high minimum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Hot Springs	United States	Record high minimum temperature	17.8 C (64.0 F)	34 of 100 (Routine)
Pilgrims Rest (Pol)	South Africa	Record daily precipitation	29.5 mm (1.2 in)	33 of 100 (Routine)
Ft Morgan	United States	Record high minimum temperature	15.6 C (60.1 F)	33 of 100 (Routine)
Price	Canada	Record daily precipitation	35.3 mm (1.4 in)	32 of 100 (Routine)
Framingham	United States	Record high minimum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Missoula 6 NW WFO	United States	Record low minimum temperature	-1.7 C (28.9 F)	31 of 100 (Routine)
Storrs	United States	Record high minimum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Easton	United States	Record high minimum temperature	22.2 C (72.0 F)	30 of 100 (Routine)
Bridgeport	United States	Record high minimum temperature	15.6 C (60.1 F)	30 of 100 (Routine)
Haina 214	United States	Record low maximum temperature	20.6 C (69.1 F)	30 of 100 (Routine)
Canton 4 SE	United States	Record high maximum temperature	28.9 C (84.0 F)	30 of 100 (Routine)
Celaya (Smn)	Mexico	Record low maximum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
San Bernardino F S 226	United States	Record high minimum temperature	15.0 C (59.0 F)	29 of 100 (Routine)
Boulder	United States	Record high minimum temperature	18.9 C (66.0 F)	29 of 100 (Routine)
Fitchburg 4 SE	United States	Record high minimum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
Hightstown 2 W	United States	Record high minimum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
Foxholm 7 N	United States	Record high minimum temperature	16.1 C (61.0 F)	29 of 100 (Routine)
W Chester 2 NW	United States	Record high maximum temperature	34.4 C (93.9 F)	29 of 100 (Routine)
Heber	United States	Record high minimum temperature	11.7 C (53.1 F)	29 of 100 (Routine)
Kohala Mis 175.1	United States	Record low maximum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Spokane Intl AP	United States	Record low minimum temperature	-0.6 C (30.9 F)	29 of 100 (Routine)
Springview 2NW	United States	Record high maximum temperature	31.1 C (88.0 F)	28 of 100 (Routine)
Jornada Exp Range	United States	Record high minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Liberty 1 NE	United States	Record high maximum temperature	29.4 C (84.9 F)	28 of 100 (Routine)
Fredericksburg Np	United States	Record high maximum temperature	34.4 C (93.9 F)	28 of 100 (Routine)
Wyloo	Australia	Record daily precipitation	38.1 mm (1.5 in)	27 of 100 (Routine)
Valente	Brazil	Record daily precipitation	40.4 mm (1.6 in)	27 of 100 (Routine)
College Park	United States	Record high maximum temperature	33.3 C (91.9 F)	27 of 100 (Routine)
Easton	United States	Record high maximum temperature	31.7 C (89.1 F)	27 of 100 (Routine)
Weston	United States	Record high minimum temperature	18.3 C (64.9 F)	27 of 100 (Routine)
Imperial	United States	Record high minimum temperature	16.1 C (61.0 F)	27 of 100 (Routine)
Watertown	United States	Record high maximum temperature	29.4 C (84.9 F)	27 of 100 (Routine)
Pilot Rock 1 SE	United States	Record low minimum temperature	-2.8 C (27.0 F)	27 of 100 (Routine)
Georgetown Post Office	Australia	Record high minimum temperature	23.3 C (73.9 F)	26 of 100 (Routine)
Pasadena	United States	Record high minimum temperature	17.2 C (63.0 F)	26 of 100 (Routine)
Cambridge Water Trmt P	United States	Record high minimum temperature	21.1 C (70.0 F)	26 of 100 (Routine)
Millington 1 SE	United States	Record high minimum temperature	21.1 C (70.0 F)	26 of 100 (Routine)
Ft Wingate	United States	Record high minimum temperature	13.9 C (57.0 F)	26 of 100 (Routine)

Counts by Type and Timescale

716 records

Records set or tied on 25 May 1964 by type: Highest daily maximum 228, Lowest daily maximum 23, Highest daily minimum 243, Lowest daily minimum 102, Heaviest daily rainfall 117, Heaviest daily snowfall 2, Deepest snow cover 1.

Records on 25 May 1964 by type
Record type	Records
Highest daily maximum	228
Lowest daily maximum	23
Highest daily minimum	243
Lowest daily minimum	102
Heaviest daily rainfall	117
Heaviest daily snowfall	2
Deepest snow cover	1

Records on 25 May 1964 by timescale: all-time 0, monthly 15, daily 701.

How Much Records Were Beaten By

526 broken records

Margins by which the 526 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 182.1. Ties are not counted.

Top 20 by Significance

25 May 1964

Top 20 records on 25 May 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 May 1964	Tobolsk, RU	daily rain	32.4 mm (1.3 in)	23.1 mm (0.9 in)	44 years	61 of 100 (Major)
25 May 1964	Belle Isle, CA	daily rain	56.6 mm (2.2 in)	37.5 mm (1.5 in)	40 years	59 of 100 (Notable)
25 May 1964	Hakalau 142, US	daily rain	160.5 mm (6.3 in)	67.0 mm (2.6 in)	41 years	58 of 100 (Notable)
25 May 1964	Honohina 137, US	daily rain	157.2 mm (6.2 in)	109.7 mm (4.3 in)	41 years	58 of 100 (Notable)
25 May 1964	Kohala Mis 175.1, US	daily rain	58.9 mm (2.3 in)	43.7 mm (1.7 in)	41 years	58 of 100 (Notable)
25 May 1964	Papaikou 144.1, US	daily rain	126.5 mm (5.0 in)	72.4 mm (2.9 in)	41 years	58 of 100 (Notable)
25 May 1964	Pte de Chassiron, FR	daily rain	36.3 mm (1.4 in)	11.3 mm (0.4 in)	74 years	50 of 100 (Notable)
25 May 1964	Honomu Mauka 138, US	daily rain	225.3 mm (8.9 in)	182.1 mm (7.2 in)	16 years	49 of 100 (Notable)
25 May 1964	Pointe Au Pere, CA	monthly rain	43.2 mm (1.7 in)	2.6 mm (0.10 in)	76 years	45 of 100 (Notable)
25 May 1964	Kaiserslautern, DE	daily rain	25.5 mm (1.0 in)	13.2 mm (0.5 in)	31 years	42 of 100 (Notable)
25 May 1964	Chengam, IN	daily rain	73.0 mm (2.9 in)	51.7 mm (2.0 in)	19 years	41 of 100 (Notable)
25 May 1964	Cape May 2 NW, US	daily high max	30.6 C (87.1 F)	3.4 C (6.1 F)	83 years	41 of 100 (Notable)
25 May 1964	Mtn View 91, US	daily rain	111.8 mm (4.4 in)	38.1 mm (1.5 in)	42 years	40 of 100 (Notable)
25 May 1964	Bernalillo, US	monthly high min	17.2 C (63.0 F)	0.5 C (0.9 F)	66 years	38 of 100 (Notable)
25 May 1964	Stillwater Rsvr, US	daily rain	31.0 mm (1.2 in)	17.3 mm (0.7 in)	34 years	38 of 100 (Notable)
25 May 1964	Warren, US	daily rain	35.6 mm (1.4 in)	16.0 mm (0.6 in)	42 years	37 of 100 (Notable)
25 May 1964	St Andrews, CA	daily high min	10.0 C (50.0 F)	1.1 C (2.0 F)	83 years	36 of 100 (Notable)
25 May 1964	Evanston 1 E, US	daily high min	12.2 C (54.0 F)	5.0 C (9.0 F)	51 years	36 of 100 (Notable)
25 May 1964	Haina 214, US	daily rain	36.8 mm (1.4 in)	26.9 mm (1.1 in)	41 years	36 of 100 (Notable)
25 May 1964	Valdez WSO, US	daily rain	35.6 mm (1.4 in)	21.6 mm (0.9 in)	6 years	36 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 1964

Records set or tied on this calendar date in each year from 1793 to 1964. 1964 had 716 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 1964-05-25: 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 25	514
25 to 50	7
50 to 75	3
75 to 100	0
100 to 125	1
125 to 150	0
150 to 175	0
175 to 200	1