Weather Records on 20 October 1957

440 weather records were set or tied worldwide on 20 October 1957. Highest significance: Las Vegas 2 NW, US.

Key Facts for 20 October 1957

On 20 October 1957, 440 weather records were set or tied at long-record stations worldwide.
65 were record highs and 114 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 430 daily.
Las Vegas 2 NW set a daily record precipitation of 51.6 mm (2.0 in) on 20 October 1957.
Across 160 earlier years (1806 to 2025) the same calendar date averaged 457 records.

Record Map

440 stations

440 station records on 20 October 1957 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 October 1957: highest significance records shown on the map
Station	Country	Type	Value	Significance
Las Vegas 2 NW	United States	Record daily precipitation	51.6 mm (2.0 in)	57 of 100 (Notable)
Kilba	India	Record daily precipitation	125.7 mm (4.9 in)	50 of 100 (Notable)
Dharmapuri	India	Record daily precipitation	116.8 mm (4.6 in)	49 of 100 (Notable)
Espanola	United States	Record daily precipitation	41.4 mm (1.6 in)	47 of 100 (Notable)
Maxwell 3 NW	United States	Record daily precipitation	58.2 mm (2.3 in)	45 of 100 (Notable)
Springer	United States	Record daily precipitation	85.6 mm (3.4 in)	45 of 100 (Notable)
Milan	Italy	Record daily precipitation	39.5 mm (1.6 in)	43 of 100 (Notable)
Austin #2	United States	Record daily precipitation	44.2 mm (1.7 in)	43 of 100 (Notable)
Balmorhea	United States	Record daily precipitation	34.3 mm (1.4 in)	41 of 100 (Notable)
Thomasgat	South Africa	Record daily precipitation	35.5 mm (1.4 in)	40 of 100 (Notable)
Melbourne Regional Office	Australia	Record high maximum temperature	31.1 C (88.0 F)	39 of 100 (Notable)
Genoa	Italy	Record daily precipitation	92.6 mm (3.6 in)	39 of 100 (Notable)
La Pryor	United States	Record daily precipitation	69.6 mm (2.7 in)	39 of 100 (Notable)
Mercara Obsy Sr	India	Record daily precipitation	66.5 mm (2.6 in)	36 of 100 (Notable)
Sonnblick	Austria	Record daily precipitation	27.6 mm (1.1 in)	35 of 100 (Notable)
Truckee Rs	United States	Record daily snowfall	7.6 cm (3.0 in)	35 of 100 (Notable)
Kotkhai	India	Record daily precipitation	116.8 mm (4.6 in)	34 of 100 (Routine)
Gannapan	South Africa	Record daily precipitation	25.0 mm (1.0 in)	34 of 100 (Routine)
Ahuacatlan	Mexico	Record low maximum temperature	22.2 C (72.0 F)	33 of 100 (Routine)
Gemsbokfontein	South Africa	Record daily precipitation	39.0 mm (1.5 in)	33 of 100 (Routine)
Alton	United States	Record daily precipitation	26.7 mm (1.1 in)	33 of 100 (Routine)
La Sal	United States	Record daily precipitation	33.5 mm (1.3 in)	33 of 100 (Routine)
Ft Davis	United States	Record daily precipitation	37.8 mm (1.5 in)	32 of 100 (Routine)
Adaven	United States	Record daily snowfall	7.6 cm (3.0 in)	31 of 100 (Routine)
Cowles	United States	Record daily precipitation	41.9 mm (1.6 in)	31 of 100 (Routine)
Lubbock 9N	United States	Record daily precipitation	39.1 mm (1.5 in)	31 of 100 (Routine)
Rooipoort	South Africa	Record daily precipitation	32.5 mm (1.3 in)	30 of 100 (Routine)
Sierraville Rs	United States	Record daily snowfall	6.4 cm (2.5 in)	29 of 100 (Routine)
Hiawatha	United States	Record daily precipitation	32.8 mm (1.3 in)	29 of 100 (Routine)
Nhill	Australia	Record high maximum temperature	37.9 C (100.2 F)	28 of 100 (Routine)
Srinagar	India	Record daily precipitation	37.3 mm (1.5 in)	28 of 100 (Routine)
Adelaide West Terrace	Australia	Record high maximum temperature	33.2 C (91.8 F)	27 of 100 (Routine)
Ft Fairfield 5 NE	United States	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Napoklu	India	Record daily precipitation	53.3 mm (2.1 in)	26 of 100 (Routine)
Koegasbrug	South Africa	Record daily precipitation	31.5 mm (1.2 in)	26 of 100 (Routine)
Laghouat	Algeria	Record low maximum temperature	17.8 C (64.0 F)	25 of 100 (Routine)
Sattankulam	India	Record daily precipitation	66.3 mm (2.6 in)	25 of 100 (Routine)
Swaelfontein	South Africa	Record daily precipitation	31.0 mm (1.2 in)	25 of 100 (Routine)
Estancia 4N	United States	Record daily precipitation	43.2 mm (1.7 in)	25 of 100 (Routine)
Southport 5 N	United States	Record low minimum temperature	5.6 C (42.1 F)	25 of 100 (Routine)
Agricultural College	United States	Record high minimum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Katanning Comparison	Australia	Record low maximum temperature	12.2 C (54.0 F)	23 of 100 (Routine)
Tennant Creek Post Office	Australia	Record high maximum temperature	42.8 C (109.0 F)	23 of 100 (Routine)
Kamennaja-Step	Russia	Record high maximum temperature	19.6 C (67.3 F)	23 of 100 (Routine)
Fitzgerald	United States	Record low minimum temperature	6.7 C (44.1 F)	23 of 100 (Routine)
Sedalia Wtp	United States	Record low minimum temperature	0.6 C (33.1 F)	23 of 100 (Routine)
Landrum 1 NE	United States	Record low minimum temperature	-2.8 C (27.0 F)	23 of 100 (Routine)
Bowman Dam	United States	Record low maximum temperature	10.0 C (50.0 F)	22 of 100 (Routine)
Fernandina Beach	United States	Record low maximum temperature	20.0 C (68.0 F)	22 of 100 (Routine)
Los Alamos	United States	Record daily precipitation	32.8 mm (1.3 in)	22 of 100 (Routine)
Portales	United States	Record low maximum temperature	12.2 C (54.0 F)	22 of 100 (Routine)
Snowtown	Australia	Record high maximum temperature	36.7 C (98.1 F)	21 of 100 (Routine)
Mount Gambier Post Office	Australia	Record high maximum temperature	31.1 C (88.0 F)	21 of 100 (Routine)
Karkal	India	Record daily precipitation	57.2 mm (2.3 in)	21 of 100 (Routine)
Hoshiarpur	India	Record daily precipitation	29.7 mm (1.2 in)	21 of 100 (Routine)
Lekkervlei	South Africa	Record daily precipitation	29.0 mm (1.1 in)	21 of 100 (Routine)
Huntington Lake	United States	Record daily snowfall	12.7 cm (5.0 in)	21 of 100 (Routine)
Le Grand	United States	Record high minimum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
Miami	United States	Record daily precipitation	32.0 mm (1.3 in)	21 of 100 (Routine)
Statesville 2 NNE	United States	Record low minimum temperature	-1.7 C (28.9 F)	21 of 100 (Routine)

Counts by Type and Timescale

440 records

Records set or tied on 20 October 1957 by type: Highest daily maximum 30, Lowest daily maximum 67, Highest daily minimum 35, Lowest daily minimum 47, Heaviest daily rainfall 248, Heaviest daily snowfall 12, Deepest snow cover 1.

Records on 20 October 1957 by type
Record type	Records
Highest daily maximum	30
Lowest daily maximum	67
Highest daily minimum	35
Lowest daily minimum	47
Heaviest daily rainfall	248
Heaviest daily snowfall	12
Deepest snow cover	1

Records on 20 October 1957 by timescale: all-time 0, monthly 10, daily 430.

How Much Records Were Beaten By

367 broken records

Margins by which the 367 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.0. Ties are not counted.

Top 20 by Significance

20 October 1957

Top 20 records on 20 October 1957 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 1957	Las Vegas 2 NW, US	daily rain	51.6 mm (2.0 in)	38.9 mm (1.5 in)	39 years	57 of 100 (Notable)
20 October 1957	Kilba, IN	monthly rain	125.7 mm (4.9 in)	47.2 mm (1.9 in)	2 years	50 of 100 (Notable)
20 October 1957	Dharmapuri, IN	daily rain	116.8 mm (4.6 in)	67.8 mm (2.7 in)	35 years	49 of 100 (Notable)
20 October 1957	Espanola, US	daily rain	41.4 mm (1.6 in)	29.7 mm (1.2 in)	4 years	47 of 100 (Notable)
20 October 1957	Maxwell 3 NW, US	monthly rain	58.2 mm (2.3 in)	16.8 mm (0.7 in)	36 years	45 of 100 (Notable)
20 October 1957	Springer, US	monthly rain	85.6 mm (3.4 in)	30.0 mm (1.2 in)	3 years	45 of 100 (Notable)
20 October 1957	Milan, IT	daily rain	39.5 mm (1.6 in)	5.7 mm (0.22 in)	97 years	43 of 100 (Notable)
20 October 1957	Austin #2, US	daily rain	44.2 mm (1.7 in)	21.1 mm (0.8 in)	16 years	43 of 100 (Notable)
20 October 1957	Balmorhea, US	daily rain	34.3 mm (1.4 in)	31.3 mm (1.2 in)	19 years	41 of 100 (Notable)
20 October 1957	Thomasgat, ZA	monthly rain	35.5 mm (1.4 in)	11.6 mm (0.5 in)	28 years	40 of 100 (Notable)
20 October 1957	Melbourne Regional Office, AU	daily high max	31.1 C (88.0 F)	0.5 C (0.9 F)	95 years	39 of 100 (Notable)
20 October 1957	Genoa, IT	daily rain	92.6 mm (3.6 in)	11.8 mm (0.5 in)	81 years	39 of 100 (Notable)
20 October 1957	La Pryor, US	daily rain	69.6 mm (2.7 in)	56.9 mm (2.2 in)	10 years	39 of 100 (Notable)
20 October 1957	Mercara Obsy Sr, IN	daily rain	66.5 mm (2.6 in)	20.8 mm (0.8 in)	54 years	36 of 100 (Notable)
20 October 1957	Sonnblick, AT	daily rain	27.6 mm (1.1 in)	14.5 mm (0.6 in)	40 years	35 of 100 (Notable)
20 October 1957	Truckee Rs, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	52 years	35 of 100 (Notable)
20 October 1957	Kotkhai, IN	monthly rain	116.8 mm (4.6 in)	15.2 mm (0.6 in)	39 years	34 of 100 (Routine)
20 October 1957	Gannapan, ZA	daily rain	25.0 mm (1.0 in)	9.3 mm (0.37 in)	64 years	34 of 100 (Routine)
20 October 1957	Ahuacatlan, MX	daily low max	22.2 C (72.0 F)	6.7 C (12.1 F)	16 years	33 of 100 (Routine)
20 October 1957	Gemsbokfontein, ZA	daily rain	39.0 mm (1.5 in)	27.0 mm (1.1 in)	4 years	33 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

1806 to 1957

Records set or tied on this calendar date in each year from 1806 to 1957. 1957 had 440 records.

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

Records on 10-20 in each year
Year	Records
1806	1
1835	1
1844	1
1846	1
1847	2
1851	1
1852	1
1858	1
1863	2
1864	2
1866	3
1867	1
1868	2
1872	2
1874	2
1875	3
1876	2
1877	1
1878	1
1880	3
1881	2
1884	1
1885	1
1886	1
1887	1
1888	6
1891	4
1892	4
1893	1
1894	3
1895	4
1896	9
1897	2
1898	7
1899	1
1900	8
1901	7
1902	5
1903	9
1904	13
1905	22
1906	28
1907	32
1908	26
1909	17
1910	31
1911	16
1912	6
1913	38
1914	16
1915	20
1916	72
1917	201
1918	34
1919	19
1920	81
1921	68
1922	83
1923	96
1924	182
1925	247
1926	147
1927	283
1928	92
1929	129
1930	672
1931	125
1932	331
1933	675
1934	422
1935	390
1936	370
1937	189
1938	231
1939	367
1940	757
1941	459
1942	152
1943	501
1944	288
1945	363
1946	310
1947	1,494
1948	320
1949	1,084
1950	619
1951	279
1952	520
1953	1,057
1954	262
1955	529
1956	283
1957	440
1958	461
1959	451
1960	671
1961	479
1962	733
1963	765
1964	598
1965	340
1966	857
1967	511
1968	244
1969	607
1970	710
1971	606
1972	1,724
1973	878
1974	1,122
1975	587
1976	1,304
1977	467
1978	508
1979	1,647
1980	350
1981	1,083
1982	1,191
1983	944
1984	1,562
1985	835
1986	823
1987	590
1988	737
1989	2,092
1990	609
1991	971
1992	1,174
1993	1,238
1994	650
1995	703
1996	1,417
1997	949
1998	683
1999	603
2000	737
2001	589
2002	985
2003	1,761
2004	1,861
2005	1,092
2006	1,170
2007	923
2008	477
2009	786
2010	539
2011	785
2012	945
2013	592
2014	851
2015	523
2016	947
2017	602
2018	394
2019	744
2020	1,010
2021	900
2022	834
2023	1,468
2024	707
2025	326

Download the Data

Data for records on 1957-10-20: 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	346
20 to 40	14
40 to 60	2
60 to 80	4
80 to 100	0
100 to 120	1