Weather Records on 17 October 2011

734 weather records were set or tied worldwide on 17 October 2011. Highest significance: Irvinebank, AU.

Key Facts for 17 October 2011

On 17 October 2011, 734 weather records were set or tied at long-record stations worldwide.
466 were record highs and 147 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 719 daily.
Irvinebank set a daily record precipitation of 34.6 mm (1.4 in) on 17 October 2011.
Across 162 earlier years (1793 to 2025) the same calendar date averaged 438 records.

Record Map

734 stations

734 station records on 17 October 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 October 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Irvinebank	Australia	Record daily precipitation	34.6 mm (1.4 in)	62 of 100 (Major)
Key W Intl AP	United States	Record daily precipitation	175.5 mm (6.9 in)	58 of 100 (Notable)
Key West NAS	United States	Record daily precipitation	187.5 mm (7.4 in)	47 of 100 (Notable)
Edinburgh: Royal Botanic Garde	United Kingdom	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Rollingstone	Australia	Record daily precipitation	75.0 mm (3.0 in)	45 of 100 (Notable)
Bogorodskoe	Russia	Record daily precipitation	32.7 mm (1.3 in)	43 of 100 (Notable)
Bjelasnica	Bosnia and Herzegovina	Record low minimum temperature	-9.1 C (15.6 F)	42 of 100 (Notable)
Paradise	United States	Record high maximum temperature	30.0 C (86.0 F)	41 of 100 (Notable)
Castle Dale	United States	Record high minimum temperature	8.3 C (46.9 F)	41 of 100 (Notable)
Poblado C-15	Mexico	Record daily precipitation	185.9 mm (7.3 in)	40 of 100 (Notable)
Penicuik	United Kingdom	Record daily precipitation	31.7 mm (1.2 in)	40 of 100 (Notable)
Bloomfield 3 SE	United States	Record high minimum temperature	11.7 C (53.1 F)	40 of 100 (Notable)
Miahuatlan (Smn)	Mexico	Record low minimum temperature	1.1 C (34.0 F)	38 of 100 (Notable)
Williams	United States	Record high minimum temperature	9.4 C (48.9 F)	38 of 100 (Notable)
Gospic	Croatia	Record low minimum temperature	-6.4 C (20.5 F)	37 of 100 (Notable)
Palo Mancornado	Mexico	Record low maximum temperature	3.9 C (39.0 F)	36 of 100 (Notable)
Del Norte 3ENE	United States	Record high maximum temperature	23.3 C (73.9 F)	36 of 100 (Notable)
Flamingo Rs	United States	Record daily precipitation	90.4 mm (3.6 in)	36 of 100 (Notable)
Sarajevo	Bosnia and Herzegovina	Record low minimum temperature	-3.1 C (26.4 F)	35 of 100 (Notable)
Acajutla	El Salvador	Record low maximum temperature	27.2 C (81.0 F)	35 of 100 (Notable)
Fairhope 2 NE	United States	Record high maximum temperature	32.2 C (90.0 F)	35 of 100 (Notable)
Severo-Enisejsk	Russia	Record high maximum temperature	11.8 C (53.2 F)	34 of 100 (Routine)
Pervomajskoe	Russia	Record high maximum temperature	16.7 C (62.1 F)	34 of 100 (Routine)
Nakhon Ratchasima	Thailand	Record low maximum temperature	24.5 C (76.1 F)	34 of 100 (Routine)
Evening Shade 1 NNE	United States	Record high maximum temperature	31.1 C (88.0 F)	34 of 100 (Routine)
Salinas #2	United States	Record daily precipitation	37.8 mm (1.5 in)	34 of 100 (Routine)
Dolisie	Congo (Brazzaville)	Record daily precipitation	59.9 mm (2.4 in)	33 of 100 (Routine)
Arad	Romania	Record low minimum temperature	-4.9 C (23.2 F)	33 of 100 (Routine)
Pogranichnoe	Russia	Record high minimum temperature	7.9 C (46.2 F)	32 of 100 (Routine)
Stockton Fire STN 4	United States	Record high minimum temperature	16.1 C (61.0 F)	32 of 100 (Routine)
Cairo 3N	United States	Record high maximum temperature	30.6 C (87.1 F)	32 of 100 (Routine)
Mutarnee Store	Australia	Record daily precipitation	39.0 mm (1.5 in)	31 of 100 (Routine)
Khon Kaen	Thailand	Record low maximum temperature	25.7 C (78.3 F)	31 of 100 (Routine)
Okmulgee Wtr Wks	United States	Record high maximum temperature	33.9 C (93.0 F)	31 of 100 (Routine)
Mangareva	French Polynesia	Record daily precipitation	58.9 mm (2.3 in)	30 of 100 (Routine)
Methoni	Greece	Record daily precipitation	58.7 mm (2.3 in)	30 of 100 (Routine)
Finca Chicharras	Mexico	Record low maximum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
Ocozocoautla	Mexico	Record daily precipitation	30.0 mm (1.2 in)	30 of 100 (Routine)
Novi Sad	Serbia	Record low minimum temperature	-4.2 C (24.4 F)	30 of 100 (Routine)
Willcox	United States	Record high maximum temperature	35.0 C (95.0 F)	30 of 100 (Routine)
El Centro 2 SSW	United States	Record high maximum temperature	39.4 C (102.9 F)	30 of 100 (Routine)
Augustine 2E	United States	Record high minimum temperature	7.2 C (45.0 F)	30 of 100 (Routine)
White Sands Natl Mon	United States	Record high maximum temperature	32.8 C (91.0 F)	30 of 100 (Routine)
Osijek	Croatia	Record low minimum temperature	-3.0 C (26.6 F)	29 of 100 (Routine)
Nueva Casas Grandes	Mexico	Record high maximum temperature	32.8 C (91.0 F)	29 of 100 (Routine)
Muleshoe #1	United States	Record high maximum temperature	32.8 C (91.0 F)	29 of 100 (Routine)
Ouray 4NE	United States	Record high minimum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Sondrestrom	Greenland [Denmark]	Record low minimum temperature	-23.2 C (-9.8 F)	28 of 100 (Routine)
Szeged	Hungary	Record low minimum temperature	-4.3 C (24.3 F)	28 of 100 (Routine)
Tangier City	Morocco	Record high minimum temperature	20.7 C (69.3 F)	28 of 100 (Routine)
Drobeta Turnu Severin	Romania	Record low minimum temperature	-1.4 C (29.5 F)	28 of 100 (Routine)
Bowhill	United Kingdom	Record daily precipitation	28.3 mm (1.1 in)	28 of 100 (Routine)
Eagle Mtn	United States	Record high minimum temperature	23.3 C (73.9 F)	28 of 100 (Routine)
Homer 1N	United States	Record high maximum temperature	32.8 C (91.0 F)	28 of 100 (Routine)
Wappapello Dam	United States	Record high maximum temperature	31.7 C (89.1 F)	28 of 100 (Routine)
Ruidoso	United States	Record high maximum temperature	25.6 C (78.1 F)	28 of 100 (Routine)
Enka	United States	Record high maximum temperature	27.8 C (82.0 F)	28 of 100 (Routine)
Arica	Chile	Record low minimum temperature	10.9 C (51.6 F)	27 of 100 (Routine)
Antofagasta	Chile	Record low minimum temperature	10.6 C (51.1 F)	27 of 100 (Routine)
Chiconautla	Mexico	Record high maximum temperature	31.7 C (89.1 F)	27 of 100 (Routine)

Counts by Type and Timescale

734 records

Records set or tied on 17 October 2011 by type: Highest daily maximum 346, Lowest daily maximum 58, Highest daily minimum 120, Lowest daily minimum 89, Heaviest daily rainfall 121.

Records on 17 October 2011 by type
Record type	Records
Highest daily maximum	346
Lowest daily maximum	58
Highest daily minimum	120
Lowest daily minimum	89
Heaviest daily rainfall	121
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 October 2011 by timescale: all-time 1, monthly 14, daily 719.

How Much Records Were Beaten By

506 broken records

Margins by which the 506 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 119.6. Ties are not counted.

Top 20 by Significance

17 October 2011

Top 20 records on 17 October 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 October 2011	Irvinebank, AU	daily rain	34.6 mm (1.4 in)	22.9 mm (0.9 in)	119 years	62 of 100 (Major)
17 October 2011	Key W Intl AP, US	daily rain	175.5 mm (6.9 in)	119.6 mm (4.7 in)	41 years	58 of 100 (Notable)
17 October 2011	Key West NAS, US	monthly rain	187.5 mm (7.4 in)	31.8 mm (1.3 in)	40 years	47 of 100 (Notable)
17 October 2011	Edinburgh: Royal Botanic Garde, GB	daily rain	29.0 mm (1.1 in)	20.4 mm (0.8 in)	24 years	46 of 100 (Notable)
17 October 2011	Rollingstone, AU	daily rain	75.0 mm (3.0 in)	70.6 mm (2.8 in)	24 years	45 of 100 (Notable)
17 October 2011	Bogorodskoe, RU	daily rain	32.7 mm (1.3 in)	14.0 mm (0.6 in)	41 years	43 of 100 (Notable)
17 October 2011	Bjelasnica, BA	daily low min	-9.1 C (15.6 F)	1.2 C (2.2 F)	100 years	42 of 100 (Notable)
17 October 2011	Paradise, US	daily high max	30.0 C (86.0 F)	0.6 C (1.1 F)	104 years	41 of 100 (Notable)
17 October 2011	Castle Dale, US	daily high min	8.3 C (46.9 F)	0.5 C (0.9 F)	104 years	41 of 100 (Notable)
17 October 2011	Poblado C-15, MX	daily rain	185.9 mm (7.3 in)	111.0 mm (4.4 in)	13 years	40 of 100 (Notable)
17 October 2011	Penicuik, GB	daily rain	31.7 mm (1.2 in)	20.7 mm (0.8 in)	24 years	40 of 100 (Notable)
17 October 2011	Bloomfield 3 SE, US	daily high min	11.7 C (53.1 F)	1.7 C (3.1 F)	86 years	40 of 100 (Notable)
17 October 2011	Miahuatlan (Smn), MX	monthly low min	1.1 C (34.0 F)	1.7 C (3.1 F)	54 years	38 of 100 (Notable)
17 October 2011	Williams, US	daily high min	9.4 C (48.9 F)	0.5 C (0.9 F)	92 years	38 of 100 (Notable)
17 October 2011	Gospic, HR	daily low min	-6.4 C (20.5 F)	1.4 C (2.5 F)	82 years	37 of 100 (Notable)
17 October 2011	Palo Mancornado, MX	all-time low max	3.9 C (39.0 F)	1.1 C (2.0 F)	30 years	36 of 100 (Notable)
17 October 2011	Del Norte 3ENE, US	daily high max	23.3 C (73.9 F)	0.5 C (0.9 F)	84 years	36 of 100 (Notable)
17 October 2011	Flamingo Rs, US	daily rain	90.4 mm (3.6 in)	37.8 mm (1.5 in)	24 years	36 of 100 (Notable)
17 October 2011	Sarajevo, BA	daily low min	-3.1 C (26.4 F)	0.6 C (1.1 F)	82 years	35 of 100 (Notable)
17 October 2011	Acajutla, SV	daily low max	27.2 C (81.0 F)	2.8 C (5.0 F)	48 years	35 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 2011

Records set or tied on this calendar date in each year from 1793 to 2011. 2011 had 734 records.

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

Records on 10-17 in each year
Year	Records
1793	1
1796	2
1808	2
1810	1
1811	1
1817	1
1820	1
1830	1
1836	1
1844	1
1845	1
1868	1
1869	2
1870	1
1872	1
1874	1
1875	1
1876	3
1877	1
1878	1
1879	7
1881	1
1882	1
1883	1
1884	2
1885	2
1886	1
1889	1
1890	3
1891	2
1892	6
1893	5
1894	2
1895	1
1897	3
1898	6
1899	3
1900	3
1901	3
1902	4
1903	9
1904	17
1905	12
1906	3
1907	16
1908	46
1909	18
1910	13
1911	24
1912	12
1913	26
1914	72
1915	7
1916	81
1917	29
1918	20
1919	34
1920	82
1921	64
1922	60
1923	149
1924	81
1925	324
1926	153
1927	163
1928	530
1929	119
1930	441
1931	431
1932	345
1933	190
1934	262
1935	337
1936	338
1937	865
1938	710
1939	424
1940	580
1941	194
1942	349
1943	1,173
1944	415
1945	289
1946	437
1947	744
1948	724
1949	442
1950	809
1951	274
1952	474
1953	463
1954	579
1955	562
1956	353
1957	245
1958	415
1959	403
1960	432
1961	525
1962	350
1963	513
1964	492
1965	920
1966	551
1967	576
1968	929
1969	714
1970	815
1971	1,053
1972	866
1973	542
1974	1,055
1975	605
1976	1,381
1977	1,060
1978	583
1979	468
1980	1,366
1981	555
1982	575
1983	526
1984	1,551
1985	585
1986	354
1987	828
1988	827
1989	1,163
1990	1,109
1991	1,352
1992	1,384
1993	1,001
1994	1,306
1995	1,076
1996	987
1997	1,114
1998	1,455
1999	815
2000	461
2001	878
2002	992
2003	764
2004	935
2005	643
2006	1,506
2007	690
2008	467
2009	1,606
2010	625
2011	734
2012	550
2013	516
2014	530
2015	843
2016	1,559
2017	743
2018	1,163
2019	504
2020	889
2021	294
2022	964
2023	544
2024	994
2025	363

Download the Data

Data for records on 2011-10-17: 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 2026-10-16 (16 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	487
20 to 40	14
40 to 60	2
60 to 80	1
80 to 100	0
100 to 120	2