Weather Records on 31 October 2020

542 weather records were set or tied worldwide on 31 October 2020. Highest significance: Penza, RU.

Key Facts for 31 October 2020

On 31 October 2020, 542 weather records were set or tied at long-record stations worldwide.
269 were record highs and 149 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 74 monthly and 467 daily.
Penza set a monthly record daily precipitation of 54.1 mm (2.1 in) on 31 October 2020.
Across 163 earlier years (1805 to 2025) the same calendar date averaged 471 records.

Record Map

542 stations

542 station records on 31 October 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 October 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Penza	Russia	Record daily precipitation	54.1 mm (2.1 in)	74 of 100 (Major)
Howatharra	Australia	Record daily precipitation	30.5 mm (1.2 in)	68 of 100 (Major)
Tallangatta (Bullioh)	Australia	Record daily precipitation	43.6 mm (1.7 in)	59 of 100 (Notable)
Ashburnham	United States	Record daily snowfall	8.6 cm (3.4 in)	57 of 100 (Notable)
Lysa Hora	Czech Republic	Record daily precipitation	50.3 mm (2.0 in)	56 of 100 (Notable)
Southbridge 3 SW	United States	Record daily snowfall	10.2 cm (4.0 in)	56 of 100 (Notable)
Booligal (Ulonga)	Australia	Record daily precipitation	26.5 mm (1.0 in)	54 of 100 (Notable)
Cobargo Post Office	Australia	Record daily precipitation	52.4 mm (2.1 in)	53 of 100 (Notable)
Lowell	United States	Record low minimum temperature	-7.2 C (19.0 F)	51 of 100 (Notable)
Liberty 1 NE	United States	Record daily snowfall	5.1 cm (2.0 in)	50 of 100 (Notable)
Middleton	United States	Record daily snowfall	6.4 cm (2.5 in)	48 of 100 (Notable)
Annex Creek	United States	Record daily precipitation	72.4 mm (2.9 in)	48 of 100 (Notable)
Belchertown	United States	Record daily snowfall	8.9 cm (3.5 in)	47 of 100 (Notable)
Narrogin	Australia	Record high minimum temperature	21.3 C (70.3 F)	46 of 100 (Notable)
Bakersville	United States	Record daily snowfall	9.1 cm (3.6 in)	46 of 100 (Notable)
Blue Hill Coop	United States	Record daily snowfall	16.0 cm (6.3 in)	46 of 100 (Notable)
Lawrence	United States	Record low maximum temperature	0.6 C (33.1 F)	46 of 100 (Notable)
Middleton	United States	Record low maximum temperature	-2.2 C (28.0 F)	46 of 100 (Notable)
Amherst	United States	Record low maximum temperature	2.8 C (37.0 F)	45 of 100 (Notable)
Keene	United States	Record low maximum temperature	1.7 C (35.1 F)	45 of 100 (Notable)
Barre Falls Dam	United States	Record daily snowfall	10.2 cm (4.0 in)	44 of 100 (Notable)
Middleboro	United States	Record daily snowfall	7.6 cm (3.0 in)	44 of 100 (Notable)
Barkhamsted	United States	Record daily snowfall	5.1 cm (2.0 in)	43 of 100 (Notable)
Burlington	United States	Record daily snowfall	5.1 cm (2.0 in)	43 of 100 (Notable)
Woonsocket	United States	Record daily snowfall	10.2 cm (4.0 in)	43 of 100 (Notable)
Norfolk 2 SW	United States	Record daily snowfall	9.4 cm (3.7 in)	42 of 100 (Notable)
Gardiner	United States	Record low maximum temperature	2.2 C (36.0 F)	42 of 100 (Notable)
Madison	United States	Record low maximum temperature	2.2 C (36.0 F)	41 of 100 (Notable)
Cheboygan	United States	Record low maximum temperature	1.1 C (34.0 F)	41 of 100 (Notable)
Chilton	United States	Record low maximum temperature	2.2 C (36.0 F)	41 of 100 (Notable)
Charlevoix	United States	Record low maximum temperature	2.8 C (37.0 F)	40 of 100 (Notable)
Juneau AP	United States	Record daily precipitation	41.4 mm (1.6 in)	40 of 100 (Notable)
Buffumville Lake	United States	Record daily snowfall	7.6 cm (3.0 in)	39 of 100 (Notable)
Shuttle Meadow Rsvr	United States	Record daily snowfall	5.1 cm (2.0 in)	38 of 100 (Notable)
Middleton	United States	Record low minimum temperature	-9.4 C (15.1 F)	38 of 100 (Notable)
Mt Carmel	United States	Record low maximum temperature	2.8 C (37.0 F)	37 of 100 (Notable)
Sodus 1W	United States	Record low maximum temperature	3.9 C (39.0 F)	37 of 100 (Notable)
Aerop.Internacional	Mexico	Record daily precipitation	62.5 mm (2.5 in)	36 of 100 (Notable)
Storrs	United States	Record low maximum temperature	0.0 C (32.0 F)	36 of 100 (Notable)
Montague 4 NW	United States	Record low minimum temperature	-10.0 C (14.0 F)	36 of 100 (Notable)
Pittsburgh Allegheny Co AP	United States	Record low minimum temperature	-2.1 C (28.2 F)	35 of 100 (Notable)
Mundarlo (Yabtree)	Australia	Record daily precipitation	42.0 mm (1.7 in)	34 of 100 (Routine)
Birch Hill Dam	United States	Record low maximum temperature	0.6 C (33.1 F)	34 of 100 (Routine)
E Brimfield Lake	United States	Record low maximum temperature	0.0 C (32.0 F)	34 of 100 (Routine)
Cape Hermes	South Africa	Record daily precipitation	39.9 mm (1.6 in)	33 of 100 (Routine)
Blue Hill Coop	United States	Record low maximum temperature	0.0 C (32.0 F)	33 of 100 (Routine)
Norton W	United States	Record daily snowfall	9.4 cm (3.7 in)	33 of 100 (Routine)
Peru 2 WSW	United States	Record low minimum temperature	-8.3 C (17.1 F)	33 of 100 (Routine)
Holbrook (Glenfalloch)	Australia	Record daily precipitation	35.0 mm (1.4 in)	32 of 100 (Routine)
Yap Island WSO AP	Federated States of Micronesia	Record daily precipitation	88.9 mm (3.5 in)	32 of 100 (Routine)
Haverhill	United States	Record low minimum temperature	-7.2 C (19.0 F)	32 of 100 (Routine)
Lakeport 2	United States	Record low minimum temperature	-5.0 C (23.0 F)	32 of 100 (Routine)
Boston	United States	Record low minimum temperature	-2.1 C (28.2 F)	32 of 100 (Routine)
Gustavus	United States	Record daily precipitation	30.0 mm (1.2 in)	32 of 100 (Routine)
Schwerin	Germany	Record high minimum temperature	12.0 C (53.6 F)	31 of 100 (Routine)
Waren	Germany	Record high minimum temperature	12.6 C (54.7 F)	31 of 100 (Routine)
Mt Hamilton	United States	Record high minimum temperature	22.2 C (72.0 F)	31 of 100 (Routine)
Harrisville Sp	United States	Record low maximum temperature	1.7 C (35.1 F)	31 of 100 (Routine)
Westhampton Gabreski AP	United States	Record low maximum temperature	7.8 C (46.0 F)	31 of 100 (Routine)
Robertson (the Pie Shop)	Australia	Record daily precipitation	76.8 mm (3.0 in)	30 of 100 (Routine)

Counts by Type and Timescale

542 records

Records set or tied on 31 October 2020 by type: Highest daily maximum 140, Lowest daily maximum 85, Highest daily minimum 129, Lowest daily minimum 64, Heaviest daily rainfall 63, Heaviest daily snowfall 30, Deepest snow cover 31.

Records on 31 October 2020 by type
Record type	Records
Highest daily maximum	140
Lowest daily maximum	85
Highest daily minimum	129
Lowest daily minimum	64
Heaviest daily rainfall	63
Heaviest daily snowfall	30
Deepest snow cover	31

Records on 31 October 2020 by timescale: all-time 1, monthly 74, daily 467.

How Much Records Were Beaten By

424 broken records

Margins by which the 424 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 150.0. Ties are not counted.

Top 20 by Significance

31 October 2020

Top 20 records on 31 October 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 2020	Penza, RU	monthly rain	54.1 mm (2.1 in)	14.2 mm (0.6 in)	84 years	74 of 100 (Major)
31 October 2020	Howatharra, AU	daily rain	30.5 mm (1.2 in)	22.9 mm (0.9 in)	64 years	68 of 100 (Major)
31 October 2020	Tallangatta (Bullioh), AU	daily rain	43.6 mm (1.7 in)	18.2 mm (0.7 in)	125 years	59 of 100 (Notable)
31 October 2020	Ashburnham, US	daily snowfall	8.6 cm (3.4 in)	8.6 cm (3.4 in)	114 years	57 of 100 (Notable)
31 October 2020	Lysa Hora, CZ	daily rain	50.3 mm (2.0 in)	37.3 mm (1.5 in)	44 years	56 of 100 (Notable)
31 October 2020	Southbridge 3 SW, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	91 years	56 of 100 (Notable)
31 October 2020	Booligal (Ulonga), AU	daily rain	26.5 mm (1.0 in)	12.8 mm (0.5 in)	138 years	54 of 100 (Notable)
31 October 2020	Cobargo Post Office, AU	daily rain	52.4 mm (2.1 in)	21.9 mm (0.9 in)	97 years	53 of 100 (Notable)
31 October 2020	Lowell, US	monthly low min	-7.2 C (19.0 F)	0.5 C (0.9 F)	129 years	51 of 100 (Notable)
31 October 2020	Liberty 1 NE, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	120 years	50 of 100 (Notable)
31 October 2020	Middleton, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	91 years	48 of 100 (Notable)
31 October 2020	Annex Creek, US	daily rain	72.4 mm (2.9 in)	18.8 mm (0.7 in)	94 years	48 of 100 (Notable)
31 October 2020	Belchertown, US	daily snowfall	8.9 cm (3.5 in)	8.9 cm (3.5 in)	77 years	47 of 100 (Notable)
31 October 2020	Narrogin, AU	monthly high min	21.3 C (70.3 F)	2.1 C (3.8 F)	69 years	46 of 100 (Notable)
31 October 2020	Bakersville, US	daily snowfall	9.1 cm (3.6 in)	9.1 cm (3.6 in)	72 years	46 of 100 (Notable)
31 October 2020	Blue Hill Coop, US	daily snowfall	16.0 cm (6.3 in)	15.0 cm (5.9 in)	20 years	46 of 100 (Notable)
31 October 2020	Lawrence, US	monthly low max	0.6 C (33.1 F)	0.5 C (0.9 F)	84 years	46 of 100 (Notable)
31 October 2020	Middleton, US	monthly low max	-2.2 C (28.0 F)	6.1 C (11.0 F)	51 years	46 of 100 (Notable)
31 October 2020	Amherst, US	daily low max	2.8 C (37.0 F)	2.8 C (5.0 F)	114 years	45 of 100 (Notable)
31 October 2020	Keene, US	daily low max	1.7 C (35.1 F)	2.7 C (4.9 F)	114 years	45 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

1805 to 2020

Records set or tied on this calendar date in each year from 1805 to 2020. 2020 had 542 records.

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

Records on 10-31 in each year
Year	Records
1805	1
1811	2
1828	1
1836	1
1838	1
1839	1
1841	1
1845	1
1847	2
1848	1
1852	2
1856	1
1865	1
1868	1
1869	3
1873	2
1875	2
1876	1
1877	1
1878	1
1879	1
1880	1
1881	6
1883	1
1884	3
1886	1
1887	2
1888	3
1889	5
1891	3
1892	4
1893	3
1894	5
1895	4
1896	10
1897	1
1898	5
1899	4
1900	5
1901	4
1902	5
1903	5
1904	7
1905	21
1906	38
1907	22
1908	13
1909	15
1910	18
1911	32
1912	14
1913	39
1914	33
1915	11
1916	72
1917	67
1918	72
1919	112
1920	63
1921	22
1922	72
1923	359
1924	244
1925	405
1926	153
1927	183
1928	120
1929	234
1930	240
1931	178
1932	260
1933	796
1934	410
1935	981
1936	307
1937	335
1938	399
1939	415
1940	248
1941	536
1942	578
1943	213
1944	611
1945	287
1946	530
1947	371
1948	695
1949	831
1950	1,237
1951	527
1952	393
1953	303
1954	460
1955	427
1956	1,086
1957	392
1958	314
1959	484
1960	296
1961	511
1962	344
1963	631
1964	538
1965	340
1966	630
1967	748
1968	605
1969	531
1970	412
1971	992
1972	1,234
1973	581
1974	1,192
1975	827
1976	655
1977	616
1978	538
1979	1,130
1980	657
1981	497
1982	560
1983	782
1984	1,054
1985	632
1986	396
1987	1,002
1988	1,058
1989	857
1990	990
1991	3,294
1992	1,324
1993	2,926
1994	1,004
1995	1,051
1996	1,074
1997	1,553
1998	1,410
1999	997
2000	1,114
2001	1,218
2002	1,613
2003	1,167
2004	870
2005	1,048
2006	842
2007	613
2008	1,256
2009	1,030
2010	931
2011	746
2012	884
2013	623
2014	547
2015	691
2016	1,012
2017	437
2018	414
2019	2,501
2020	542
2021	469
2022	497
2023	960
2024	1,133
2025	314

Download the Data

Data for records on 2020-10-31: 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 20	376
20 to 40	22
40 to 60	14
60 to 80	5
80 to 100	4
100 to 120	2
120 to 140	0
140 to 160	1