Weather Records on 25 October 2021

1,081 weather records were set or tied worldwide on 25 October 2021. Highest significance: Hill City 1 W, US.

Key Facts for 25 October 2021

On 25 October 2021, 1,081 weather records were set or tied at long-record stations worldwide.
417 were record highs and 63 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 70 monthly and 1,004 daily.
Hill City 1 W set a monthly record daily precipitation of 66.3 mm (2.6 in) on 25 October 2021.
Across 163 earlier years (1800 to 2025) the same calendar date averaged 461 records.

Record Map

1,081 stations

1,081 station records on 25 October 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 October 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hill City 1 W	United States	Record daily precipitation	66.3 mm (2.6 in)	89 of 100 (Exceptional)
Portola	United States	Record daily precipitation	144.0 mm (5.7 in)	84 of 100 (Exceptional)
Maquoketa	United States	Record daily precipitation	70.9 mm (2.8 in)	80 of 100 (Exceptional)
Marshalltown	United States	Record daily precipitation	71.6 mm (2.8 in)	80 of 100 (Exceptional)
Ely AP	United States	Record daily precipitation	26.7 mm (1.1 in)	80 of 100 (Exceptional)
Belle Plaine	United States	Record daily precipitation	65.5 mm (2.6 in)	78 of 100 (Major)
Amasia	Armenia	Record daily precipitation	99.6 mm (3.9 in)	77 of 100 (Major)
Boca	United States	Record daily precipitation	119.9 mm (4.7 in)	77 of 100 (Major)
Piqua	United States	Record daily precipitation	69.9 mm (2.8 in)	74 of 100 (Major)
Newman	United States	Record daily precipitation	37.8 mm (1.5 in)	73 of 100 (Major)
Sutter Hill Cdf	United States	Record daily precipitation	137.2 mm (5.4 in)	73 of 100 (Major)
Carson City	United States	Record daily precipitation	71.4 mm (2.8 in)	73 of 100 (Major)
Topaz Lake	United States	Record daily precipitation	55.1 mm (2.2 in)	73 of 100 (Major)
Philo	United States	Record daily precipitation	47.5 mm (1.9 in)	72 of 100 (Major)
Peru	United States	Record daily precipitation	48.8 mm (1.9 in)	72 of 100 (Major)
Saint Ignatius	United States	Record daily precipitation	38.1 mm (1.5 in)	72 of 100 (Major)
Big Sur STN	United States	Record daily precipitation	116.8 mm (4.6 in)	71 of 100 (Major)
Monmouth	United States	Record daily precipitation	62.0 mm (2.4 in)	71 of 100 (Major)
Iowa City	United States	Record daily precipitation	63.0 mm (2.5 in)	70 of 100 (Major)
Paso Robles	United States	Record daily precipitation	42.7 mm (1.7 in)	69 of 100 (Major)
Yosemite Park HQ	United States	Record daily precipitation	137.9 mm (5.4 in)	69 of 100 (Major)
Greenville Wtp	United States	Record daily precipitation	68.6 mm (2.7 in)	69 of 100 (Major)
San Luis Obispo Poly	United States	Record daily precipitation	55.9 mm (2.2 in)	68 of 100 (Major)
Cooperstown	United States	Record daily precipitation	55.9 mm (2.2 in)	68 of 100 (Major)
Paso Robles Muni AP	United States	Record daily precipitation	39.1 mm (1.5 in)	67 of 100 (Major)
Paulding	United States	Record daily precipitation	63.8 mm (2.5 in)	65 of 100 (Major)
Mt Clemens Ang Base	United States	Record daily precipitation	35.1 mm (1.4 in)	65 of 100 (Major)
Boone	United States	Record daily precipitation	64.0 mm (2.5 in)	64 of 100 (Major)
Ann Arbor U of Mich	United States	Record daily precipitation	48.5 mm (1.9 in)	64 of 100 (Major)
Fiddletown Dexter Rch	United States	Record daily precipitation	163.8 mm (6.4 in)	63 of 100 (Major)
Tahoe City	United States	Record daily precipitation	154.9 mm (6.1 in)	63 of 100 (Major)
Lovelock	United States	Record daily precipitation	42.7 mm (1.7 in)	63 of 100 (Major)
Middletown	United States	Record daily precipitation	163.1 mm (6.4 in)	62 of 100 (Major)
Willows 6 W	United States	Record daily precipitation	64.3 mm (2.5 in)	62 of 100 (Major)
Champaign 3S	United States	Record daily precipitation	63.2 mm (2.5 in)	62 of 100 (Major)
Decatur 1 N	United States	Record daily precipitation	54.9 mm (2.2 in)	62 of 100 (Major)
Sigourney	United States	Record daily precipitation	45.7 mm (1.8 in)	62 of 100 (Major)
Defiance	United States	Record daily precipitation	55.1 mm (2.2 in)	62 of 100 (Major)
Mt Diablo Junction	United States	Record daily precipitation	153.4 mm (6.0 in)	61 of 100 (Major)
Santa Margarita Boost	United States	Record daily precipitation	106.7 mm (4.2 in)	61 of 100 (Major)
W Pt	United States	Record daily precipitation	133.4 mm (5.3 in)	61 of 100 (Major)
Dagget Pass	United States	Record daily precipitation	103.1 mm (4.1 in)	61 of 100 (Major)
Santa Maria Public AP	United States	Record daily precipitation	32.5 mm (1.3 in)	61 of 100 (Major)
Launceston (Kings Meadows)	Australia	Record daily precipitation	41.2 mm (1.6 in)	60 of 100 (Major)
Camp Pardee	United States	Record daily precipitation	56.4 mm (2.2 in)	60 of 100 (Major)
Mt Hamilton	United States	Record daily precipitation	139.7 mm (5.5 in)	60 of 100 (Major)
Hoopeston	United States	Record daily precipitation	70.4 mm (2.8 in)	60 of 100 (Major)
Streator 2SE	United States	Record daily precipitation	80.0 mm (3.1 in)	60 of 100 (Major)
Susanville 2SW	United States	Record daily precipitation	68.1 mm (2.7 in)	59 of 100 (Notable)
Galena	United States	Record daily precipitation	46.0 mm (1.8 in)	59 of 100 (Notable)
Mt Carroll	United States	Record daily precipitation	56.1 mm (2.2 in)	59 of 100 (Notable)
Paw Paw 2S	United States	Record daily precipitation	54.9 mm (2.2 in)	59 of 100 (Notable)
Perry	United States	Record daily precipitation	65.0 mm (2.6 in)	59 of 100 (Notable)
Storm Lake	United States	Record daily precipitation	34.8 mm (1.4 in)	59 of 100 (Notable)
Markley Cove	United States	Record daily precipitation	127.0 mm (5.0 in)	58 of 100 (Notable)
Lakeview	United States	Record daily precipitation	59.9 mm (2.4 in)	58 of 100 (Notable)
Pleasant Hill	United States	Record daily precipitation	53.8 mm (2.1 in)	58 of 100 (Notable)
N Fk Rs	United States	Record daily precipitation	103.4 mm (4.1 in)	57 of 100 (Notable)
Pacific House	United States	Record daily precipitation	204.5 mm (8.1 in)	57 of 100 (Notable)
Glenns Ferry	United States	Record daily precipitation	33.0 mm (1.3 in)	57 of 100 (Notable)

Counts by Type and Timescale

1,081 records

Records set or tied on 25 October 2021 by type: Highest daily maximum 160, Lowest daily maximum 49, Highest daily minimum 257, Lowest daily minimum 14, Heaviest daily rainfall 588, Heaviest daily snowfall 7, Deepest snow cover 6.

Records on 25 October 2021 by type
Record type	Records
Highest daily maximum	160
Lowest daily maximum	49
Highest daily minimum	257
Lowest daily minimum	14
Heaviest daily rainfall	588
Heaviest daily snowfall	7
Deepest snow cover	6

Records on 25 October 2021 by timescale: all-time 7, monthly 70, daily 1,004.

How Much Records Were Beaten By

916 broken records

Margins by which the 916 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 165.0. Ties are not counted.

Top 20 by Significance

25 October 2021

Top 20 records on 25 October 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 October 2021	Hill City 1 W, US	monthly rain	66.3 mm (2.6 in)	36.6 mm (1.4 in)	96 years	89 of 100 (Exceptional)
25 October 2021	Portola, US	all-time rain	144.0 mm (5.7 in)	37.8 mm (1.5 in)	65 years	84 of 100 (Exceptional)
25 October 2021	Maquoketa, US	daily rain	70.9 mm (2.8 in)	52.1 mm (2.1 in)	122 years	80 of 100 (Exceptional)
25 October 2021	Marshalltown, US	daily rain	71.6 mm (2.8 in)	47.0 mm (1.9 in)	104 years	80 of 100 (Exceptional)
25 October 2021	Ely AP, US	daily rain	26.7 mm (1.1 in)	20.3 mm (0.8 in)	124 years	80 of 100 (Exceptional)
25 October 2021	Belle Plaine, US	daily rain	65.5 mm (2.6 in)	40.1 mm (1.6 in)	122 years	78 of 100 (Major)
25 October 2021	Amasia, AM	monthly rain	99.6 mm (3.9 in)	62.0 mm (2.4 in)	65 years	77 of 100 (Major)
25 October 2021	Boca, US	monthly rain	119.9 mm (4.7 in)	49.5 mm (1.9 in)	59 years	77 of 100 (Major)
25 October 2021	Piqua, US	daily rain	69.9 mm (2.8 in)	42.7 mm (1.7 in)	80 years	74 of 100 (Major)
25 October 2021	Newman, US	daily rain	37.8 mm (1.5 in)	27.9 mm (1.1 in)	80 years	73 of 100 (Major)
25 October 2021	Sutter Hill Cdf, US	monthly rain	137.2 mm (5.4 in)	58.2 mm (2.3 in)	59 years	73 of 100 (Major)
25 October 2021	Carson City, US	monthly rain	71.4 mm (2.8 in)	23.1 mm (0.9 in)	59 years	73 of 100 (Major)
25 October 2021	Topaz Lake, US	monthly rain	55.1 mm (2.2 in)	27.2 mm (1.1 in)	59 years	73 of 100 (Major)
25 October 2021	Philo, US	daily rain	47.5 mm (1.9 in)	35.8 mm (1.4 in)	126 years	72 of 100 (Major)
25 October 2021	Peru, US	daily rain	48.8 mm (1.9 in)	36.9 mm (1.5 in)	122 years	72 of 100 (Major)
25 October 2021	Saint Ignatius, US	daily rain	38.1 mm (1.5 in)	24.4 mm (1.0 in)	76 years	72 of 100 (Major)
25 October 2021	Big Sur STN, US	daily rain	116.8 mm (4.6 in)	75.1 mm (3.0 in)	70 years	71 of 100 (Major)
25 October 2021	Monmouth, US	daily rain	62.0 mm (2.4 in)	37.1 mm (1.5 in)	122 years	71 of 100 (Major)
25 October 2021	Iowa City, US	daily rain	63.0 mm (2.5 in)	34.3 mm (1.4 in)	104 years	70 of 100 (Major)
25 October 2021	Paso Robles, US	daily rain	42.7 mm (1.7 in)	36.3 mm (1.4 in)	70 years	69 of 100 (Major)

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

1800 to 2021

Records set or tied on this calendar date in each year from 1800 to 2021. 2021 had 1,081 records.

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

Records on 10-25 in each year
Year	Records
1800	1
1802	1
1831	1
1834	1
1840	1
1841	1
1845	1
1850	1
1853	1
1856	1
1857	1
1859	1
1861	2
1864	1
1866	2
1869	1
1870	1
1871	1
1874	3
1875	2
1876	1
1877	1
1879	2
1881	1
1883	2
1885	1
1887	3
1888	4
1890	11
1891	4
1892	3
1893	2
1894	6
1895	2
1896	1
1897	1
1898	1
1899	8
1900	3
1901	3
1902	13
1903	4
1904	10
1905	20
1906	18
1907	14
1908	32
1909	19
1910	15
1911	28
1912	18
1913	51
1914	33
1915	50
1916	19
1917	29
1918	36
1919	73
1920	158
1921	47
1922	210
1923	117
1924	122
1925	297
1926	391
1927	358
1928	104
1929	262
1930	260
1931	317
1932	380
1933	433
1934	983
1935	302
1936	205
1937	328
1938	461
1939	934
1940	491
1941	323
1942	383
1943	321
1944	273
1945	437
1946	460
1947	668
1948	169
1949	761
1950	408
1951	493
1952	331
1953	278
1954	687
1955	573
1956	501
1957	907
1958	285
1959	904
1960	439
1961	237
1962	937
1963	1,115
1964	245
1965	529
1966	347
1967	493
1968	376
1969	462
1970	693
1971	996
1972	409
1973	339
1974	470
1975	1,326
1976	832
1977	824
1978	460
1979	720
1980	967
1981	1,200
1982	1,107
1983	484
1984	1,135
1985	595
1986	665
1987	572
1988	594
1989	1,543
1990	554
1991	1,413
1992	1,208
1993	569
1994	610
1995	667
1996	1,016
1997	2,375
1998	903
1999	1,110
2000	1,469
2001	1,338
2002	1,779
2003	1,215
2004	1,107
2005	1,695
2006	1,165
2007	1,289
2008	722
2009	576
2010	1,240
2011	748
2012	1,267
2013	656
2014	945
2015	499
2016	569
2017	737
2018	402
2019	1,000
2020	3,067
2021	1,081
2022	778
2023	1,254
2024	724
2025	505

Download the Data

Data for records on 2021-10-25: 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	775
25 to 50	109
50 to 75	23
75 to 100	6
100 to 125	1
125 to 150	1
150 to 175	1