Weather Records on 15 October 1991

1,139 weather records were set or tied worldwide on 15 October 1991. Highest significance: Bordeaux-Merignac, FR.

Key Facts for 15 October 1991

On 15 October 1991, 1,139 weather records were set or tied at long-record stations worldwide.
731 were record highs and 262 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 15 monthly and 1,124 daily.
Bordeaux-Merignac set a daily record precipitation of 62.0 mm (2.4 in) on 15 October 1991.
Across 159 earlier years (1794 to 2025) the same calendar date averaged 455 records.

Record Map

1,139 stations

1,139 station records on 15 October 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 October 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bordeaux-Merignac	France	Record daily precipitation	62.0 mm (2.4 in)	71 of 100 (Major)
Kanalohuluhulu 1075	United States	Record daily precipitation	91.9 mm (3.6 in)	61 of 100 (Major)
Cape Otway Lighthouse	Australia	Record high minimum temperature	19.5 C (67.1 F)	53 of 100 (Notable)
Waialae-Kahala 715	United States	Record daily precipitation	84.6 mm (3.3 in)	52 of 100 (Notable)
Hakodate	Japan	Record daily precipitation	71.1 mm (2.8 in)	45 of 100 (Notable)
Muroran	Japan	Record daily precipitation	73.9 mm (2.9 in)	44 of 100 (Notable)
Bloemfontein Airpor	South Africa	Record daily precipitation	34.5 mm (1.4 in)	44 of 100 (Notable)
Punchbowl Crater 709	United States	Record daily precipitation	61.7 mm (2.4 in)	43 of 100 (Notable)
Sunnyside - Lund 31S	United States	Record high maximum temperature	29.4 C (84.9 F)	42 of 100 (Notable)
Pomeroy	United States	Record high maximum temperature	28.9 C (84.0 F)	41 of 100 (Notable)
Cold Bay AP	United States	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Robe Comparison	Australia	Record high minimum temperature	17.2 C (63.0 F)	39 of 100 (Notable)
Manistique Wwtp	United States	Record low maximum temperature	4.4 C (39.9 F)	39 of 100 (Notable)
Martinsdale 3 NNW	United States	Record high maximum temperature	25.6 C (78.1 F)	39 of 100 (Notable)
Paradise Valley 1 NW	United States	Record high maximum temperature	29.4 C (84.9 F)	39 of 100 (Notable)
Mt Morris 2W	United States	Record low minimum temperature	-1.1 C (30.0 F)	39 of 100 (Notable)
Grants Pass	United States	Record high maximum temperature	31.7 C (89.1 F)	39 of 100 (Notable)
Williams	United States	Record high maximum temperature	26.7 C (80.1 F)	38 of 100 (Notable)
University	United States	Record daily precipitation	40.9 mm (1.6 in)	38 of 100 (Notable)
Valentine	United States	Record high maximum temperature	29.4 C (84.9 F)	38 of 100 (Notable)
Pendleton Dwtn	United States	Record high maximum temperature	31.1 C (88.0 F)	38 of 100 (Notable)
Santander Cmt	Spain	Record daily precipitation	55.1 mm (2.2 in)	37 of 100 (Notable)
Saint Ignatius	United States	Record high maximum temperature	28.3 C (82.9 F)	37 of 100 (Notable)
Grapeview 3 SW	United States	Record high maximum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Hopelchen	Mexico	Record low maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Washta	United States	Record low minimum temperature	-6.7 C (19.9 F)	36 of 100 (Notable)
Hamilton	United States	Record high maximum temperature	28.9 C (84.0 F)	36 of 100 (Notable)
Aneth Plt	United States	Record high maximum temperature	28.9 C (84.0 F)	36 of 100 (Notable)
Cle Elum	United States	Record high maximum temperature	28.3 C (82.9 F)	36 of 100 (Notable)
Wilhelmina Rise 721	United States	Record daily precipitation	48.8 mm (1.9 in)	36 of 100 (Notable)
Gauhati	India	Record daily precipitation	160.8 mm (6.3 in)	35 of 100 (Notable)
Jerome	United States	Record high minimum temperature	17.8 C (64.0 F)	35 of 100 (Notable)
Livermore	United States	Record high maximum temperature	35.0 C (95.0 F)	35 of 100 (Notable)
Marysville	United States	Record high maximum temperature	35.6 C (96.1 F)	35 of 100 (Notable)
Bonners Ferry	United States	Record high maximum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Petoskey	United States	Record low maximum temperature	6.7 C (44.1 F)	35 of 100 (Notable)
Zavizan	Croatia	Record daily precipitation	93.9 mm (3.7 in)	34 of 100 (Routine)
Merced	United States	Record high minimum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Orleans	United States	Record high maximum temperature	33.9 C (93.0 F)	34 of 100 (Routine)
Fergus Falls	United States	Record low maximum temperature	3.3 C (37.9 F)	34 of 100 (Routine)
Kalispell Glacier AP	United States	Record high maximum temperature	26.1 C (79.0 F)	34 of 100 (Routine)
Clover Valley	United States	Record high maximum temperature	27.2 C (81.0 F)	34 of 100 (Routine)
Wallowa	United States	Record high maximum temperature	29.4 C (84.9 F)	34 of 100 (Routine)
Cleve	Australia	Record high minimum temperature	23.8 C (74.8 F)	33 of 100 (Routine)
Decatur Wtp	United States	Record low maximum temperature	10.6 C (51.1 F)	33 of 100 (Routine)
Hallock	United States	Record low maximum temperature	3.9 C (39.0 F)	33 of 100 (Routine)
Leech Lake	United States	Record low maximum temperature	3.3 C (37.9 F)	33 of 100 (Routine)
Libby 1 NE Rs	United States	Record high maximum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
Kanab	United States	Record high maximum temperature	31.7 C (89.1 F)	33 of 100 (Routine)
Butte Bert Mooney AP	United States	Record high maximum temperature	24.4 C (75.9 F)	33 of 100 (Routine)
Melbourne Regional Office	Australia	Record high maximum temperature	31.8 C (89.2 F)	32 of 100 (Routine)
Sandpoint Exp STN	United States	Record high maximum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
Big Timber	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Cloverdale	United States	Record high maximum temperature	30.6 C (87.1 F)	32 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record high maximum temperature	27.8 C (82.0 F)	32 of 100 (Routine)
Solon Springs	United States	Record low maximum temperature	3.9 C (39.0 F)	32 of 100 (Routine)
Moran 5WNW	United States	Record high maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Thermopolis	United States	Record high maximum temperature	27.2 C (81.0 F)	32 of 100 (Routine)
Kaneohe Bay MCAS	United States	Record daily precipitation	45.2 mm (1.8 in)	32 of 100 (Routine)
Mount Gambier Aero	Australia	Record high minimum temperature	17.5 C (63.5 F)	31 of 100 (Routine)

Counts by Type and Timescale

1,139 records

Records set or tied on 15 October 1991 by type: Highest daily maximum 527, Lowest daily maximum 122, Highest daily minimum 204, Lowest daily minimum 140, Heaviest daily rainfall 129, Heaviest daily snowfall 10, Deepest snow cover 7.

Records on 15 October 1991 by type
Record type	Records
Highest daily maximum	527
Lowest daily maximum	122
Highest daily minimum	204
Lowest daily minimum	140
Heaviest daily rainfall	129
Heaviest daily snowfall	10
Deepest snow cover	7

Records on 15 October 1991 by timescale: all-time 0, monthly 15, daily 1,124.

How Much Records Were Beaten By

840 broken records

Margins by which the 840 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.0. Ties are not counted.

Top 20 by Significance

15 October 1991

Top 20 records on 15 October 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 October 1991	Bordeaux-Merignac, FR	daily rain	62.0 mm (2.4 in)	44.0 mm (1.7 in)	73 years	71 of 100 (Major)
15 October 1991	Kanalohuluhulu 1075, US	daily rain	91.9 mm (3.6 in)	67.0 mm (2.6 in)	56 years	61 of 100 (Major)
15 October 1991	Cape Otway Lighthouse, AU	daily high min	19.5 C (67.1 F)	3.4 C (6.1 F)	101 years	53 of 100 (Notable)
15 October 1991	Waialae-Kahala 715, US	daily rain	84.6 mm (3.3 in)	57.4 mm (2.3 in)	34 years	52 of 100 (Notable)
15 October 1991	Hakodate, JP	daily rain	71.1 mm (2.8 in)	33.9 mm (1.3 in)	40 years	45 of 100 (Notable)
15 October 1991	Muroran, JP	daily rain	73.9 mm (2.9 in)	35.1 mm (1.4 in)	40 years	44 of 100 (Notable)
15 October 1991	Bloemfontein Airpor, ZA	daily rain	34.5 mm (1.4 in)	20.0 mm (0.8 in)	64 years	44 of 100 (Notable)
15 October 1991	Punchbowl Crater 709, US	daily rain	61.7 mm (2.4 in)	39.6 mm (1.6 in)	26 years	43 of 100 (Notable)
15 October 1991	Sunnyside - Lund 31S, US	daily high max	29.4 C (84.9 F)	1.6 C (2.9 F)	96 years	42 of 100 (Notable)
15 October 1991	Pomeroy, US	daily high max	28.9 C (84.0 F)	1.7 C (3.1 F)	95 years	41 of 100 (Notable)
15 October 1991	Cold Bay AP, US	daily rain	53.3 mm (2.1 in)	26.4 mm (1.0 in)	12 years	40 of 100 (Notable)
15 October 1991	Robe Comparison, AU	daily high min	17.2 C (63.0 F)	1.5 C (2.7 F)	82 years	39 of 100 (Notable)
15 October 1991	Manistique Wwtp, US	daily low max	4.4 C (39.9 F)	1.7 C (3.1 F)	92 years	39 of 100 (Notable)
15 October 1991	Martinsdale 3 NNW, US	daily high max	25.6 C (78.1 F)	1.7 C (3.1 F)	95 years	39 of 100 (Notable)
15 October 1991	Paradise Valley 1 NW, US	daily high max	29.4 C (84.9 F)	1.1 C (2.0 F)	96 years	39 of 100 (Notable)
15 October 1991	Mt Morris 2W, US	daily low min	-1.1 C (30.0 F)	0.5 C (0.9 F)	96 years	39 of 100 (Notable)
15 October 1991	Grants Pass, US	daily high max	31.7 C (89.1 F)	2.8 C (5.0 F)	84 years	39 of 100 (Notable)
15 October 1991	Williams, US	daily high max	26.7 C (80.1 F)	1.1 C (2.0 F)	92 years	38 of 100 (Notable)
15 October 1991	University, US	daily rain	40.9 mm (1.6 in)	15.5 mm (0.6 in)	72 years	38 of 100 (Notable)
15 October 1991	Valentine, US	daily high max	29.4 C (84.9 F)	3.8 C (6.8 F)	84 years	38 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

1794 to 1991

Records set or tied on this calendar date in each year from 1794 to 1991. 1991 had 1,139 records.

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

Records on 10-15 in each year
Year	Records
1794	1
1795	1
1796	1
1807	1
1808	2
1836	1
1838	1
1839	1
1849	1
1859	2
1862	1
1870	2
1871	4
1873	1
1875	1
1876	3
1877	1
1878	3
1879	3
1881	3
1882	4
1885	2
1886	1
1887	8
1889	2
1891	4
1892	1
1893	5
1894	9
1895	3
1896	8
1897	2
1898	3
1899	4
1900	3
1901	4
1902	7
1903	13
1904	10
1905	13
1906	7
1907	11
1908	13
1909	17
1910	14
1911	18
1912	17
1913	70
1914	28
1915	48
1916	21
1917	29
1918	21
1919	65
1920	38
1921	160
1922	43
1923	66
1924	118
1925	221
1926	125
1927	94
1928	385
1929	200
1930	282
1931	461
1932	213
1933	255
1934	434
1935	303
1936	126
1937	1,444
1938	598
1939	461
1940	458
1941	330
1942	494
1943	704
1944	246
1945	487
1946	354
1947	963
1948	224
1949	546
1950	321
1951	341
1952	662
1953	374
1954	945
1955	444
1956	555
1957	461
1958	606
1959	411
1960	600
1961	834
1962	1,009
1963	522
1964	488
1965	299
1966	1,265
1967	464
1968	1,111
1969	1,074
1970	642
1971	744
1972	584
1973	525
1974	768
1975	808
1976	791
1977	543
1978	886
1979	720
1980	1,006
1981	965
1982	297
1983	653
1984	1,236
1985	1,068
1986	768
1987	900
1988	896
1989	560
1990	1,134
1991	1,139
1992	1,530
1993	1,066
1994	1,103
1995	1,008
1996	458
1997	964
1998	806
1999	766
2000	625
2001	705
2002	965
2003	737
2004	716
2005	610
2006	1,305
2007	702
2008	959
2009	2,365
2010	1,095
2011	906
2012	909
2013	632
2014	901
2015	1,139
2016	674
2017	1,091
2018	2,682
2019	479
2020	499
2021	983
2022	633
2023	319
2024	748
2025	697

Download the Data

Data for records on 1991-10-15: 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 10	798
10 to 20	21
20 to 30	7
30 to 40	7
40 to 50	1
50 to 60	5
60 to 70	1