Weather Records on 11 September 1981

347 weather records were set or tied worldwide on 11 September 1981. Highest significance: Rybacje, KG.

Key Facts for 11 September 1981

On 11 September 1981, 347 weather records were set or tied at long-record stations worldwide.
135 were record highs and 111 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 344 daily.
Rybacje set a monthly record daily precipitation of 25.8 mm (1.0 in) on 11 September 1981.
Across 164 earlier years (1809 to 2026) the same calendar date averaged 424 records.

Record Map

347 stations

347 station records on 11 September 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 September 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rybacje	Kyrgyzstan	Record daily precipitation	25.8 mm (1.0 in)	61 of 100 (Major)
Xai Xai	Mozambique	Record daily precipitation	138.0 mm (5.4 in)	59 of 100 (Notable)
Inhambane	Mozambique	Record daily precipitation	67.0 mm (2.6 in)	49 of 100 (Notable)
Makakatana	South Africa	Record daily precipitation	55.5 mm (2.2 in)	46 of 100 (Notable)
Minatitlan	Mexico	Record high minimum temperature	26.7 C (80.1 F)	43 of 100 (Notable)
Chasm Falls	United States	Record daily precipitation	41.1 mm (1.6 in)	43 of 100 (Notable)
Cruz Do Espirito Santo	Brazil	Record daily precipitation	32.1 mm (1.3 in)	42 of 100 (Notable)
Teigarhorn	Iceland	Record daily precipitation	41.2 mm (1.6 in)	41 of 100 (Notable)
Valle de Santiago	Mexico	Record daily precipitation	38.9 mm (1.5 in)	41 of 100 (Notable)
Dalatangi	Iceland	Record daily precipitation	61.3 mm (2.4 in)	40 of 100 (Notable)
Cape St. Lucia	South Africa	Record daily precipitation	51.0 mm (2.0 in)	40 of 100 (Notable)
Finsterwolde	Netherlands	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Kangela, Mtubatuba	South Africa	Record daily precipitation	40.9 mm (1.6 in)	36 of 100 (Notable)
Riverview	South Africa	Record daily precipitation	37.5 mm (1.5 in)	36 of 100 (Notable)
Uloa	South Africa	Record daily precipitation	67.5 mm (2.7 in)	36 of 100 (Notable)
Willow City	United States	Record high maximum temperature	33.9 C (93.0 F)	34 of 100 (Routine)
Stuart	United States	Record daily precipitation	92.7 mm (3.6 in)	33 of 100 (Routine)
Maatsuyker Island Lighthouse	Australia	Record daily precipitation	25.6 mm (1.0 in)	32 of 100 (Routine)
Riito	Mexico	Record low minimum temperature	4.4 C (39.9 F)	32 of 100 (Routine)
Norfolk	United States	Record daily precipitation	41.4 mm (1.6 in)	32 of 100 (Routine)
Jesus Maria (Smn)	Mexico	Record low minimum temperature	6.1 C (43.0 F)	31 of 100 (Routine)
Jumatan (Cfe)	Mexico	Record low minimum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Surat Thani	Thailand	Record daily precipitation	62.2 mm (2.4 in)	30 of 100 (Routine)
Storrs	United States	Record low minimum temperature	3.3 C (37.9 F)	30 of 100 (Routine)
Shaoguan	China	Record daily precipitation	44.8 mm (1.8 in)	28 of 100 (Routine)
Vlakkloof Estate	South Africa	Record daily precipitation	28.0 mm (1.1 in)	28 of 100 (Routine)
Ft Bidwell	United States	Record high maximum temperature	34.4 C (93.9 F)	27 of 100 (Routine)
Sierraville Rs	United States	Record high minimum temperature	10.0 C (50.0 F)	26 of 100 (Routine)
Butte Bert Mooney AP	United States	Record high maximum temperature	30.6 C (87.1 F)	26 of 100 (Routine)
Inukjuak Ua	Canada	Record high minimum temperature	9.4 C (48.9 F)	25 of 100 (Routine)
Puente Colgante	Mexico	Record high minimum temperature	23.3 C (73.9 F)	25 of 100 (Routine)
Goldbutte 7 N	United States	Record high maximum temperature	32.2 C (90.0 F)	25 of 100 (Routine)
Ennis	United States	Record high maximum temperature	31.1 C (88.0 F)	24 of 100 (Routine)
Kauffman 4 SSE	United States	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Ellenburg Depot	United States	Record daily precipitation	26.4 mm (1.0 in)	23 of 100 (Routine)
Harbin	China	Record low maximum temperature	11.8 C (53.2 F)	22 of 100 (Routine)
Dandong	China	Record daily precipitation	39.3 mm (1.5 in)	22 of 100 (Routine)
Pichucalco (Smn)	Mexico	Record low minimum temperature	15.0 C (59.0 F)	22 of 100 (Routine)
Huejotzingo	Mexico	Record high maximum temperature	27.8 C (82.0 F)	22 of 100 (Routine)
Kwa-Mbonambi (Bos)	South Africa	Record daily precipitation	48.0 mm (1.9 in)	22 of 100 (Routine)
Hluhluwe Game Reserve	South Africa	Record daily precipitation	40.1 mm (1.6 in)	22 of 100 (Routine)
Hawaii Vol Np HQ 54	United States	Record low minimum temperature	9.4 C (48.9 F)	22 of 100 (Routine)
Split Marjan	Croatia	Record daily precipitation	58.4 mm (2.3 in)	21 of 100 (Routine)
Palestina (Smn)	Mexico	Record low maximum temperature	26.7 C (80.1 F)	21 of 100 (Routine)
Tlachichuca	Mexico	Record low minimum temperature	1.7 C (35.1 F)	21 of 100 (Routine)
Mangum	United States	Record high maximum temperature	39.4 C (102.9 F)	21 of 100 (Routine)
Gettysburg	United States	Record high maximum temperature	36.1 C (97.0 F)	21 of 100 (Routine)
Lihue WSO AP 1020.1	United States	Record low minimum temperature	18.9 C (66.0 F)	21 of 100 (Routine)
Victoria River Downs	Australia	Record daily precipitation	3.0 mm (0.12 in)	20 of 100 (Routine)
Doorawarrah	Australia	Record daily precipitation	7.7 mm (0.30 in)	20 of 100 (Routine)
Kirrama Station	Australia	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Picui	Brazil	Record daily precipitation	1.0 mm (0.04 in)	20 of 100 (Routine)
Vysnij Volocek	Russia	Record daily precipitation	14.9 mm (0.6 in)	20 of 100 (Routine)
Stykkisholmur	Iceland	Record daily precipitation	16.2 mm (0.6 in)	20 of 100 (Routine)
Colpon-Ata	Kyrgyzstan	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Nooitgedacht	South Africa	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Pedro Velho (Dnocs)	Brazil	Record daily precipitation	23.0 mm (0.9 in)	20 of 100 (Routine)
Inga	Brazil	Record daily precipitation	7.0 mm (0.28 in)	20 of 100 (Routine)
Yellowknife A	Canada	Record daily precipitation	12.3 mm (0.5 in)	20 of 100 (Routine)
Climax	United States	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)

Counts by Type and Timescale

347 records

Records set or tied on 11 September 1981 by type: Highest daily maximum 96, Lowest daily maximum 52, Highest daily minimum 39, Lowest daily minimum 59, Heaviest daily rainfall 99, Heaviest daily snowfall 2.

Records on 11 September 1981 by type
Record type	Records
Highest daily maximum	96
Lowest daily maximum	52
Highest daily minimum	39
Lowest daily minimum	59
Heaviest daily rainfall	99
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 11 September 1981 by timescale: all-time 0, monthly 3, daily 344.

How Much Records Were Beaten By

271 broken records

Margins by which the 271 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.0. Ties are not counted.

Top 20 by Significance

11 September 1981

Top 20 records on 11 September 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 September 1981	Rybacje, KG	monthly rain	25.8 mm (1.0 in)	11.5 mm (0.5 in)	23 years	61 of 100 (Major)
11 September 1981	Xai Xai, MZ	monthly rain	138.0 mm (5.4 in)	78.0 mm (3.1 in)	21 years	59 of 100 (Notable)
11 September 1981	Inhambane, MZ	daily rain	67.0 mm (2.6 in)	46.9 mm (1.8 in)	24 years	49 of 100 (Notable)
11 September 1981	Makakatana, ZA	daily rain	55.5 mm (2.2 in)	48.0 mm (1.9 in)	24 years	46 of 100 (Notable)
11 September 1981	Minatitlan, MX	daily high min	26.7 C (80.1 F)	2.8 C (5.0 F)	59 years	43 of 100 (Notable)
11 September 1981	Chasm Falls, US	daily rain	41.1 mm (1.6 in)	27.1 mm (1.1 in)	27 years	43 of 100 (Notable)
11 September 1981	Cruz Do Espirito Santo, BR	daily rain	32.1 mm (1.3 in)	28.7 mm (1.1 in)	48 years	42 of 100 (Notable)
11 September 1981	Teigarhorn, IS	daily rain	41.2 mm (1.6 in)	33.2 mm (1.3 in)	30 years	41 of 100 (Notable)
11 September 1981	Valle de Santiago, MX	daily rain	38.9 mm (1.5 in)	22.4 mm (0.9 in)	54 years	41 of 100 (Notable)
11 September 1981	Dalatangi, IS	daily rain	61.3 mm (2.4 in)	43.4 mm (1.7 in)	27 years	40 of 100 (Notable)
11 September 1981	Cape St. Lucia, ZA	daily rain	51.0 mm (2.0 in)	34.0 mm (1.3 in)	24 years	40 of 100 (Notable)
11 September 1981	Finsterwolde, NL	daily rain	33.0 mm (1.3 in)	13.6 mm (0.5 in)	24 years	36 of 100 (Notable)
11 September 1981	Kangela, Mtubatuba, ZA	daily rain	40.9 mm (1.6 in)	31.1 mm (1.2 in)	24 years	36 of 100 (Notable)
11 September 1981	Riverview, ZA	daily rain	37.5 mm (1.5 in)	21.8 mm (0.9 in)	52 years	36 of 100 (Notable)
11 September 1981	Uloa, ZA	daily rain	67.5 mm (2.7 in)	36.5 mm (1.4 in)	23 years	36 of 100 (Notable)
11 September 1981	Willow City, US	daily high max	33.9 C (93.0 F)	0.6 C (1.1 F)	87 years	34 of 100 (Routine)
11 September 1981	Stuart, US	daily rain	92.7 mm (3.6 in)	44.7 mm (1.8 in)	15 years	33 of 100 (Routine)
11 September 1981	Maatsuyker Island Lighthouse, AU	daily rain	25.6 mm (1.0 in)	9.9 mm (0.39 in)	19 years	32 of 100 (Routine)
11 September 1981	Riito, MX	daily low min	4.4 C (39.9 F)	9.5 C (17.1 F)	28 years	32 of 100 (Routine)
11 September 1981	Norfolk, US	daily rain	41.4 mm (1.6 in)	23.6 mm (0.9 in)	24 years	32 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

1809 to 1981

Records set or tied on this calendar date in each year from 1809 to 1981. 1981 had 347 records.

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

Records on 09-11 in each year
Year	Records
1809	1
1814	3
1818	1
1830	1
1836	1
1838	3
1839	1
1848	1
1850	1
1851	1
1854	2
1858	1
1860	2
1861	1
1863	2
1865	3
1866	1
1874	2
1876	1
1877	1
1879	1
1880	1
1882	4
1883	2
1884	1
1886	1
1888	2
1889	4
1890	2
1891	2
1892	1
1893	4
1894	2
1895	4
1896	1
1897	3
1898	3
1899	5
1900	1
1901	3
1902	15
1903	13
1904	4
1905	5
1906	10
1907	9
1908	20
1909	12
1910	19
1911	9
1912	25
1913	22
1914	52
1915	160
1916	17
1917	88
1918	62
1919	52
1920	158
1921	52
1922	78
1923	44
1924	290
1925	260
1926	137
1927	300
1928	127
1929	206
1930	136
1931	868
1932	210
1933	276
1934	144
1935	410
1936	567
1937	324
1938	288
1939	561
1940	891
1941	210
1942	234
1943	335
1944	446
1945	341
1946	262
1947	611
1948	424
1949	450
1950	462
1951	247
1952	549
1953	392
1954	363
1955	479
1956	539
1957	470
1958	748
1959	488
1960	423
1961	524
1962	480
1963	359
1964	1,195
1965	414
1966	392
1967	478
1968	835
1969	685
1970	474
1971	464
1972	507
1973	612
1974	430
1975	644
1976	920
1977	406
1978	911
1979	596
1980	474
1981	347
1982	862
1983	1,243
1984	888
1985	844
1986	1,221
1987	595
1988	1,019
1989	1,301
1990	840
1991	843
1992	672
1993	809
1994	713
1995	619
1996	1,030
1997	808
1998	1,821
1999	1,073
2000	1,469
2001	826
2002	1,059
2003	1,022
2004	740
2005	1,163
2006	1,132
2007	947
2008	916
2009	774
2010	965
2011	1,051
2012	687
2013	1,207
2014	1,100
2015	683
2016	677
2017	916
2018	763
2019	806
2020	1,235
2021	851
2022	617
2023	1,034
2024	889
2025	917
2026	615

Download the Data

Data for records on 1981-09-11: 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	241
10 to 20	13
20 to 30	8
30 to 40	4
40 to 50	4
50 to 60	0
60 to 70	0
70 to 80	1