Weather Records on 9 September 1991

882 weather records were set or tied worldwide on 9 September 1991. Highest significance: Mellette 4 W, US.

Key Facts for 9 September 1991

On 9 September 1991, 882 weather records were set or tied at long-record stations worldwide.
368 were record highs and 188 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 16 monthly and 864 daily.
Mellette 4 W set a daily record precipitation of 92.2 mm (3.6 in) on 9 September 1991.
Across 162 earlier years (1806 to 2026) the same calendar date averaged 459 records.

Record Map

882 stations

882 station records on 9 September 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 September 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mellette 4 W	United States	Record daily precipitation	92.2 mm (3.6 in)	60 of 100 (Major)
Caribou 2 S	United States	Record daily precipitation	72.9 mm (2.9 in)	58 of 100 (Notable)
Macomb	United States	Record daily precipitation	67.6 mm (2.7 in)	57 of 100 (Notable)
Pembina	United States	Record daily precipitation	67.3 mm (2.6 in)	53 of 100 (Notable)
Cokato	United States	Record daily precipitation	76.7 mm (3.0 in)	52 of 100 (Notable)
Raton Fltr Plt	United States	Record daily precipitation	40.6 mm (1.6 in)	49 of 100 (Notable)
Park River	United States	Record daily precipitation	55.9 mm (2.2 in)	48 of 100 (Notable)
Orogrande	United States	Record daily precipitation	35.6 mm (1.4 in)	45 of 100 (Notable)
Ridgeland 1NNE	United States	Record daily precipitation	75.9 mm (3.0 in)	45 of 100 (Notable)
Willmar Wwtp	United States	Record daily precipitation	60.5 mm (2.4 in)	44 of 100 (Notable)
Balingup	Australia	Record daily precipitation	35.0 mm (1.4 in)	43 of 100 (Notable)
Boddington Shire	Australia	Record daily precipitation	30.2 mm (1.2 in)	43 of 100 (Notable)
Hachijojima	Japan	Record daily precipitation	226.1 mm (8.9 in)	43 of 100 (Notable)
Arhangelsk	Russia	Record daily precipitation	29.8 mm (1.2 in)	43 of 100 (Notable)
Pinega	Russia	Record daily precipitation	26.6 mm (1.0 in)	43 of 100 (Notable)
Ambrose 3 N	United States	Record daily precipitation	81.3 mm (3.2 in)	43 of 100 (Notable)
Sahuaripa	Mexico	Record daily precipitation	75.9 mm (3.0 in)	42 of 100 (Notable)
Ft Madison	United States	Record daily precipitation	50.8 mm (2.0 in)	42 of 100 (Notable)
Bankhead L&D	United States	Record daily precipitation	55.4 mm (2.2 in)	41 of 100 (Notable)
Adams 7 SSW	United States	Record daily precipitation	42.9 mm (1.7 in)	41 of 100 (Notable)
Independence	United States	Record high minimum temperature	23.9 C (75.0 F)	40 of 100 (Notable)
Summit 1 W	United States	Record daily precipitation	36.8 mm (1.4 in)	40 of 100 (Notable)
Upper Swan Research Station	Australia	Record daily precipitation	32.0 mm (1.3 in)	39 of 100 (Notable)
San Simon	United States	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Hallock	United States	Record daily precipitation	55.4 mm (2.2 in)	39 of 100 (Notable)
Ogden Pioneer Ph	United States	Record daily precipitation	25.7 mm (1.0 in)	39 of 100 (Notable)
Gosnells City	Australia	Record daily precipitation	26.4 mm (1.0 in)	38 of 100 (Notable)
Buzau	Romania	Record low minimum temperature	5.2 C (41.4 F)	38 of 100 (Notable)
Nikolaev	Ukraine	Record low minimum temperature	4.7 C (40.5 F)	38 of 100 (Notable)
Mtn Home	United States	Record daily precipitation	29.2 mm (1.1 in)	38 of 100 (Notable)
Buffalo 2NE	United States	Record daily precipitation	62.0 mm (2.4 in)	38 of 100 (Notable)
Machiques-Granja M.A.C.	Venezuela	Record daily precipitation	156.7 mm (6.2 in)	38 of 100 (Notable)
Calarasi	Romania	Record low minimum temperature	3.1 C (37.6 F)	37 of 100 (Notable)
Wymore	United States	Record daily precipitation	34.3 mm (1.4 in)	36 of 100 (Notable)
Britton	United States	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Waubay Natl Wild Life	United States	Record daily precipitation	44.5 mm (1.8 in)	36 of 100 (Notable)
Oake Marsh Farm	Australia	Record daily precipitation	27.4 mm (1.1 in)	35 of 100 (Notable)
El Carrizal	Mexico	Record daily precipitation	96.8 mm (3.8 in)	35 of 100 (Notable)
Fruita	United States	Record daily precipitation	25.4 mm (1.0 in)	35 of 100 (Notable)
Scottsville	United States	Record daily precipitation	72.6 mm (2.9 in)	35 of 100 (Notable)
Detour Village	United States	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Maryville 2E	United States	Record high minimum temperature	22.2 C (72.0 F)	35 of 100 (Notable)
Divide	United States	Record daily precipitation	25.9 mm (1.0 in)	35 of 100 (Notable)
Pecos Nm	United States	Record low maximum temperature	15.6 C (60.1 F)	35 of 100 (Notable)
Waynesboro	United States	Record high minimum temperature	21.1 C (70.0 F)	35 of 100 (Notable)
Elkader 6 SSW	United States	Record high minimum temperature	21.7 C (71.1 F)	34 of 100 (Routine)
Cassville 1 NE	United States	Record high minimum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Towner 2 NE	United States	Record high minimum temperature	16.7 C (62.1 F)	34 of 100 (Routine)
Alicia 2 NNE	United States	Record high minimum temperature	23.3 C (73.9 F)	33 of 100 (Routine)
Baudette	United States	Record daily precipitation	29.5 mm (1.2 in)	33 of 100 (Routine)
Glenwood Spgs #2	United States	Record low maximum temperature	16.1 C (61.0 F)	32 of 100 (Routine)
Danville	United States	Record high minimum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
Leech Lake	United States	Record daily precipitation	33.5 mm (1.3 in)	32 of 100 (Routine)
Wells	United States	Record low maximum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Springer	United States	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Namiquipa	Mexico	Record low maximum temperature	17.8 C (64.0 F)	31 of 100 (Routine)
Ciudad Obregon (Dge)	Mexico	Record daily precipitation	106.9 mm (4.2 in)	29 of 100 (Routine)
Srednij Kalar	Russia	Record daily precipitation	41.9 mm (1.6 in)	29 of 100 (Routine)
Monmouth	United States	Record high minimum temperature	21.1 C (70.0 F)	29 of 100 (Routine)
Cheboygan	United States	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)

Counts by Type and Timescale

882 records

Records set or tied on 9 September 1991 by type: Highest daily maximum 106, Lowest daily maximum 88, Highest daily minimum 262, Lowest daily minimum 100, Heaviest daily rainfall 326.

Records on 9 September 1991 by type
Record type	Records
Highest daily maximum	106
Lowest daily maximum	88
Highest daily minimum	262
Lowest daily minimum	100
Heaviest daily rainfall	326
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 9 September 1991 by timescale: all-time 2, monthly 16, daily 864.

How Much Records Were Beaten By

676 broken records

Margins by which the 676 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 120.8. Ties are not counted.

Top 20 by Significance

9 September 1991

Top 20 records on 9 September 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 September 1991	Mellette 4 W, US	daily rain	92.2 mm (3.6 in)	77.5 mm (3.1 in)	36 years	60 of 100 (Major)
9 September 1991	Caribou 2 S, US	daily rain	72.9 mm (2.9 in)	43.2 mm (1.7 in)	45 years	58 of 100 (Notable)
9 September 1991	Macomb, US	daily rain	67.6 mm (2.7 in)	39.4 mm (1.6 in)	69 years	57 of 100 (Notable)
9 September 1991	Pembina, US	daily rain	67.3 mm (2.6 in)	29.2 mm (1.1 in)	69 years	53 of 100 (Notable)
9 September 1991	Cokato, US	daily rain	76.7 mm (3.0 in)	58.2 mm (2.3 in)	28 years	52 of 100 (Notable)
9 September 1991	Raton Fltr Plt, US	daily rain	40.6 mm (1.6 in)	32.0 mm (1.3 in)	21 years	49 of 100 (Notable)
9 September 1991	Park River, US	daily rain	55.9 mm (2.2 in)	20.6 mm (0.8 in)	76 years	48 of 100 (Notable)
9 September 1991	Orogrande, US	daily rain	35.6 mm (1.4 in)	14.8 mm (0.6 in)	80 years	45 of 100 (Notable)
9 September 1991	Ridgeland 1NNE, US	daily rain	75.9 mm (3.0 in)	43.6 mm (1.7 in)	5 years	45 of 100 (Notable)
9 September 1991	Willmar Wwtp, US	daily rain	60.5 mm (2.4 in)	11.0 mm (0.4 in)	90 years	44 of 100 (Notable)
9 September 1991	Balingup, AU	daily rain	35.0 mm (1.4 in)	17.2 mm (0.7 in)	48 years	43 of 100 (Notable)
9 September 1991	Boddington Shire, AU	daily rain	30.2 mm (1.2 in)	12.2 mm (0.5 in)	58 years	43 of 100 (Notable)
9 September 1991	Hachijojima, JP	daily rain	226.1 mm (8.9 in)	120.8 mm (4.8 in)	28 years	43 of 100 (Notable)
9 September 1991	Arhangelsk, RU	daily rain	29.8 mm (1.2 in)	7.6 mm (0.30 in)	56 years	43 of 100 (Notable)
9 September 1991	Pinega, RU	daily rain	26.6 mm (1.0 in)	13.7 mm (0.5 in)	30 years	43 of 100 (Notable)
9 September 1991	Ambrose 3 N, US	all-time rain	81.3 mm (3.2 in)	8.1 mm (0.32 in)	40 years	43 of 100 (Notable)
9 September 1991	Sahuaripa, MX	daily rain	75.9 mm (3.0 in)	45.9 mm (1.8 in)	4 years	42 of 100 (Notable)
9 September 1991	Ft Madison, US	daily rain	50.8 mm (2.0 in)	12.4 mm (0.5 in)	88 years	42 of 100 (Notable)
9 September 1991	Bankhead L&D, US	daily rain	55.4 mm (2.2 in)	45.5 mm (1.8 in)	33 years	41 of 100 (Notable)
9 September 1991	Adams 7 SSW, US	daily rain	42.9 mm (1.7 in)	21.8 mm (0.9 in)	36 years	41 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

1806 to 1991

Records set or tied on this calendar date in each year from 1806 to 1991. 1991 had 882 records.

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

Records on 09-09 in each year
Year	Records
1806	1
1812	1
1813	1
1814	2
1834	1
1836	1
1845	1
1847	1
1848	1
1849	2
1850	1
1854	1
1864	2
1865	3
1866	3
1867	1
1869	1
1871	1
1873	1
1878	1
1879	1
1880	2
1883	3
1884	4
1886	1
1888	4
1889	1
1890	1
1891	1
1892	4
1893	4
1894	3
1895	7
1897	3
1898	5
1899	6
1900	1
1901	4
1902	5
1903	14
1904	9
1905	8
1906	24
1907	9
1908	5
1909	9
1910	17
1911	27
1912	48
1913	12
1914	69
1915	48
1916	16
1917	44
1918	40
1919	74
1920	145
1921	92
1922	115
1923	58
1924	232
1925	248
1926	168
1927	246
1928	108
1929	362
1930	211
1931	558
1932	302
1933	433
1934	256
1935	461
1936	297
1937	242
1938	416
1939	429
1940	294
1941	763
1942	357
1943	596
1944	719
1945	355
1946	366
1947	465
1948	307
1949	1,407
1950	426
1951	338
1952	511
1953	344
1954	283
1955	608
1956	742
1957	390
1958	419
1959	736
1960	492
1961	383
1962	847
1963	400
1964	488
1965	326
1966	366
1967	367
1968	440
1969	603
1970	584
1971	498
1972	464
1973	517
1974	689
1975	555
1976	773
1977	410
1978	702
1979	878
1980	829
1981	1,011
1982	814
1983	958
1984	1,304
1985	1,269
1986	1,026
1987	676
1988	836
1989	983
1990	762
1991	882
1992	620
1993	886
1994	892
1995	937
1996	809
1997	837
1998	1,667
1999	1,013
2000	811
2001	1,647
2002	1,355
2003	786
2004	1,603
2005	1,068
2006	917
2007	948
2008	1,161
2009	792
2010	1,049
2011	1,328
2012	681
2013	974
2014	590
2015	806
2016	1,210
2017	661
2018	876
2019	953
2020	2,579
2021	1,458
2022	1,094
2023	1,222
2024	1,146
2025	520
2026	815

Download the Data

Data for records on 1991-09-09: 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	651
20 to 40	16
40 to 60	7
60 to 80	1
80 to 100	0
100 to 120	0
120 to 140	1