Weather Records on 18 November 1991

719 weather records were set or tied worldwide on 18 November 1991. Highest significance: Mountainair, US.

Key Facts for 18 November 1991

On 18 November 1991, 719 weather records were set or tied at long-record stations worldwide.
255 were record highs and 56 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 14 monthly and 705 daily.
Mountainair set a daily record precipitation of 39.4 mm (1.6 in) on 18 November 1991.
Across 165 earlier years (1793 to 2025) the same calendar date averaged 447 records.

Record Map

719 stations

719 station records on 18 November 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 November 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mountainair	United States	Record daily precipitation	39.4 mm (1.6 in)	65 of 100 (Major)
Cluj Napoca	Romania	Record daily precipitation	25.8 mm (1.0 in)	58 of 100 (Notable)
Ipiau	Brazil	Record daily precipitation	98.0 mm (3.9 in)	57 of 100 (Notable)
Modderrivier (Pol)	South Africa	Record daily precipitation	95.0 mm (3.7 in)	53 of 100 (Notable)
Weyerhaeuser 1N	United States	Record daily precipitation	38.4 mm (1.5 in)	53 of 100 (Notable)
Boca	United States	Record daily snowfall	22.9 cm (9.0 in)	51 of 100 (Notable)
New Caney 2 E	United States	Record daily precipitation	113.0 mm (4.4 in)	51 of 100 (Notable)
Postville	United States	Record daily precipitation	27.4 mm (1.1 in)	50 of 100 (Notable)
Sedalia 4 SSE	United States	Record daily precipitation	28.4 mm (1.1 in)	47 of 100 (Notable)
Des Moines	United States	Record snow depth	27.9 cm (11.0 in)	45 of 100 (Notable)
Baia Mare	Romania	Record daily precipitation	36.1 mm (1.4 in)	44 of 100 (Notable)
Emblem	United States	Record daily snowfall	5.1 cm (2.0 in)	44 of 100 (Notable)
Truckee Rs	United States	Record daily snowfall	27.9 cm (11.0 in)	42 of 100 (Notable)
Medford	United States	Record daily precipitation	28.7 mm (1.1 in)	41 of 100 (Notable)
Del Norte 3ENE	United States	Record snow depth	15.2 cm (6.0 in)	40 of 100 (Notable)
Jump Rvr 3E	United States	Record daily precipitation	35.8 mm (1.4 in)	40 of 100 (Notable)
Tuusula Hyryla	Finland	Record daily precipitation	32.4 mm (1.3 in)	38 of 100 (Notable)
Mattoon	United States	Record high minimum temperature	13.3 C (55.9 F)	38 of 100 (Notable)
Piper City	United States	Record daily precipitation	34.0 mm (1.3 in)	38 of 100 (Notable)
Rice Lake	United States	Record daily precipitation	26.4 mm (1.0 in)	37 of 100 (Notable)
Happy Valley	Australia	Record daily precipitation	110.6 mm (4.4 in)	36 of 100 (Notable)
Pedrinhas	Brazil	Record daily precipitation	58.1 mm (2.3 in)	36 of 100 (Notable)
Hinckley	United States	Record daily precipitation	29.0 mm (1.1 in)	36 of 100 (Notable)
Edina	United States	Record daily precipitation	42.7 mm (1.7 in)	36 of 100 (Notable)
Johnson Rch	United States	Record snow depth	20.3 cm (8.0 in)	36 of 100 (Notable)
Prairie du Chien	United States	Record daily precipitation	26.7 mm (1.1 in)	36 of 100 (Notable)
Witsieshoek	South Africa	Record daily precipitation	89.0 mm (3.5 in)	35 of 100 (Notable)
Hugoton	United States	Record high maximum temperature	26.7 C (80.1 F)	34 of 100 (Routine)
Eureka	United States	Record high minimum temperature	1.1 C (34.0 F)	34 of 100 (Routine)
Westby 3ENE	United States	Record daily precipitation	25.7 mm (1.0 in)	34 of 100 (Routine)
Hayden	United States	Record daily snowfall	22.9 cm (9.0 in)	33 of 100 (Routine)
Lake City	United States	Record high minimum temperature	-5.0 C (23.0 F)	33 of 100 (Routine)
Two Harbors	United States	Record snow depth	38.1 cm (15.0 in)	33 of 100 (Routine)
Winsted	United States	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
Madison	United States	Record daily precipitation	45.2 mm (1.8 in)	33 of 100 (Routine)
Limon	United States	Record snow depth	20.3 cm (8.0 in)	33 of 100 (Routine)
Manzini/Matsapa Air	Swaziland	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
South Johnstone Exp STN	Australia	Record daily precipitation	60.8 mm (2.4 in)	32 of 100 (Routine)
Crested Butte	United States	Record daily snowfall	35.6 cm (14.0 in)	32 of 100 (Routine)
Donnellson	United States	Record daily precipitation	36.3 mm (1.4 in)	32 of 100 (Routine)
Shelbina	United States	Record daily precipitation	27.9 mm (1.1 in)	32 of 100 (Routine)
Steffenville	United States	Record daily precipitation	37.3 mm (1.5 in)	32 of 100 (Routine)
Liberty	United States	Record daily precipitation	83.8 mm (3.3 in)	32 of 100 (Routine)
Silver Lake Brighton	United States	Record daily snowfall	55.9 cm (22.0 in)	32 of 100 (Routine)
Alma Dam 4	United States	Record daily precipitation	33.0 mm (1.3 in)	32 of 100 (Routine)
Big Falls Hydro	United States	Record daily precipitation	36.1 mm (1.4 in)	32 of 100 (Routine)
Yungaburra	Australia	Record daily precipitation	64.8 mm (2.6 in)	31 of 100 (Routine)
Jolalpan	Mexico	Record low maximum temperature	27.2 C (81.0 F)	31 of 100 (Routine)
Rinconada	Mexico	Record high minimum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Sibiu	Romania	Record daily precipitation	33.9 mm (1.3 in)	31 of 100 (Routine)
Braemar	United Kingdom	Record daily precipitation	30.7 mm (1.2 in)	31 of 100 (Routine)
Greenview	United States	Record daily precipitation	46.7 mm (1.8 in)	31 of 100 (Routine)
Moose Lake 1 SSE	United States	Record daily precipitation	27.7 mm (1.1 in)	31 of 100 (Routine)
Canton L&D 20	United States	Record daily precipitation	30.2 mm (1.2 in)	31 of 100 (Routine)
Cody	United States	Record daily snowfall	20.3 cm (8.0 in)	31 of 100 (Routine)
Pilgrims Rest (Pol)	South Africa	Record daily precipitation	37.0 mm (1.5 in)	30 of 100 (Routine)
Winton Pwr Plt	United States	Record high minimum temperature	0.6 C (33.1 F)	30 of 100 (Routine)
Marble Hill	United States	Record high minimum temperature	16.1 C (61.0 F)	30 of 100 (Routine)
Johnson Rch	United States	Record daily snowfall	12.7 cm (5.0 in)	30 of 100 (Routine)
Stevens Pt	United States	Record daily precipitation	26.9 mm (1.1 in)	30 of 100 (Routine)

Counts by Type and Timescale

719 records

Records set or tied on 18 November 1991 by type: Highest daily maximum 64, Lowest daily maximum 29, Highest daily minimum 191, Lowest daily minimum 27, Heaviest daily rainfall 329, Heaviest daily snowfall 37, Deepest snow cover 42.

Records on 18 November 1991 by type
Record type	Records
Highest daily maximum	64
Lowest daily maximum	29
Highest daily minimum	191
Lowest daily minimum	27
Heaviest daily rainfall	329
Heaviest daily snowfall	37
Deepest snow cover	42

Records on 18 November 1991 by timescale: all-time 0, monthly 14, daily 705.

How Much Records Were Beaten By

569 broken records

Margins by which the 569 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

18 November 1991

Top 20 records on 18 November 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 November 1991	Mountainair, US	daily rain	39.4 mm (1.6 in)	20.9 mm (0.8 in)	84 years	65 of 100 (Major)
18 November 1991	Cluj Napoca, RO	daily rain	25.8 mm (1.0 in)	15.1 mm (0.6 in)	44 years	58 of 100 (Notable)
18 November 1991	Ipiau, BR	daily rain	98.0 mm (3.9 in)	61.5 mm (2.4 in)	44 years	57 of 100 (Notable)
18 November 1991	Modderrivier (Pol), ZA	monthly rain	95.0 mm (3.7 in)	33.0 mm (1.3 in)	10 years	53 of 100 (Notable)
18 November 1991	Weyerhaeuser 1N, US	daily rain	38.4 mm (1.5 in)	19.3 mm (0.8 in)	68 years	53 of 100 (Notable)
18 November 1991	Boca, US	daily snowfall	22.9 cm (9.0 in)	17.8 cm (7.0 in)	77 years	51 of 100 (Notable)
18 November 1991	New Caney 2 E, US	daily rain	113.0 mm (4.4 in)	69.1 mm (2.7 in)	38 years	51 of 100 (Notable)
18 November 1991	Postville, US	daily rain	27.4 mm (1.1 in)	12.2 mm (0.5 in)	90 years	50 of 100 (Notable)
18 November 1991	Sedalia 4 SSE, US	daily rain	28.4 mm (1.1 in)	25.4 mm (1.0 in)	21 years	47 of 100 (Notable)
18 November 1991	Des Moines, US	daily snow depth	27.9 cm (11.0 in)	12.7 cm (5.0 in)	73 years	45 of 100 (Notable)
18 November 1991	Baia Mare, RO	daily rain	36.1 mm (1.4 in)	23.6 mm (0.9 in)	6 years	44 of 100 (Notable)
18 November 1991	Emblem, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	80 years	44 of 100 (Notable)
18 November 1991	Truckee Rs, US	daily snowfall	27.9 cm (11.0 in)	12.7 cm (5.0 in)	78 years	42 of 100 (Notable)
18 November 1991	Medford, US	daily rain	28.7 mm (1.1 in)	9.6 mm (0.38 in)	68 years	41 of 100 (Notable)
18 November 1991	Del Norte 3ENE, US	daily snow depth	15.2 cm (6.0 in)	12.7 cm (5.0 in)	38 years	40 of 100 (Notable)
18 November 1991	Jump Rvr 3E, US	daily rain	35.8 mm (1.4 in)	18.5 mm (0.7 in)	32 years	40 of 100 (Notable)
18 November 1991	Tuusula Hyryla, FI	monthly rain	32.4 mm (1.3 in)	7.9 mm (0.31 in)	29 years	38 of 100 (Notable)
18 November 1991	Mattoon, US	daily high min	13.3 C (55.9 F)	1.6 C (2.9 F)	91 years	38 of 100 (Notable)
18 November 1991	Piper City, US	daily rain	34.0 mm (1.3 in)	24.6 mm (1.0 in)	21 years	38 of 100 (Notable)
18 November 1991	Rice Lake, US	daily rain	26.4 mm (1.0 in)	18.8 mm (0.7 in)	32 years	37 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 1991

Records set or tied on this calendar date in each year from 1793 to 1991. 1991 had 719 records.

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

Records on 11-18 in each year
Year	Records
1793	2
1795	2
1805	1
1816	1
1823	1
1827	1
1829	2
1835	2
1838	1
1840	1
1845	1
1846	1
1847	1
1852	1
1856	2
1865	1
1869	1
1873	1
1875	2
1878	1
1879	1
1880	5
1881	2
1882	1
1883	1
1884	1
1885	3
1887	3
1888	2
1889	3
1890	3
1891	3
1892	2
1893	5
1894	3
1895	2
1896	5
1897	7
1898	2
1899	4
1900	16
1901	4
1902	12
1903	13
1904	19
1905	12
1906	24
1907	15
1908	10
1909	14
1910	7
1911	41
1912	81
1913	57
1914	77
1915	22
1916	30
1917	33
1918	61
1919	71
1920	27
1921	109
1922	36
1923	96
1924	191
1925	254
1926	270
1927	310
1928	319
1929	355
1930	471
1931	325
1932	347
1933	310
1934	574
1935	105
1936	362
1937	432
1938	328
1939	195
1940	241
1941	959
1942	575
1943	490
1944	265
1945	260
1946	707
1947	368
1948	363
1949	462
1950	416
1951	981
1952	479
1953	731
1954	339
1955	709
1956	269
1957	1,055
1958	1,219
1959	1,165
1960	507
1961	714
1962	488
1963	563
1964	986
1965	452
1966	273
1967	419
1968	502
1969	540
1970	296
1971	666
1972	478
1973	582
1974	643
1975	520
1976	605
1977	626
1978	960
1979	449
1980	1,771
1981	789
1982	559
1983	601
1984	612
1985	1,531
1986	1,334
1987	660
1988	416
1989	1,261
1990	534
1991	719
1992	764
1993	880
1994	1,103
1995	1,683
1996	1,289
1997	1,049
1998	1,016
1999	853
2000	1,621
2001	1,116
2002	848
2003	1,227
2004	1,169
2005	773
2006	755
2007	963
2008	1,346
2009	802
2010	668
2011	688
2012	520
2013	683
2014	2,530
2015	1,733
2016	1,157
2017	632
2018	646
2019	793
2020	1,618
2021	268
2022	1,287
2023	536
2024	576
2025	576

Download the Data

Data for records on 1991-11-18: 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 50	528
50 to 100	22
100 to 150	14
150 to 200	4
200 to 250	1