Weather Records on 15 September 1981

613 weather records were set or tied worldwide on 15 September 1981. Highest significance: Chiricahua Nm, US.

Key Facts for 15 September 1981

On 15 September 1981, 613 weather records were set or tied at long-record stations worldwide.
250 were record highs and 116 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 602 daily.
Chiricahua Nm set a daily record precipitation of 54.9 mm (2.2 in) on 15 September 1981.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 412 records.

Record Map

613 stations

613 station records on 15 September 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chiricahua Nm	United States	Record daily precipitation	54.9 mm (2.2 in)	52 of 100 (Notable)
Anahuac	United States	Record daily precipitation	87.6 mm (3.4 in)	52 of 100 (Notable)
Pichucalco (Smn)	Mexico	Record low minimum temperature	15.0 C (59.0 F)	49 of 100 (Notable)
Dunmor	United States	Record daily precipitation	135.1 mm (5.3 in)	49 of 100 (Notable)
Jennings	United States	Record daily precipitation	75.9 mm (3.0 in)	49 of 100 (Notable)
Allardt	United States	Record daily precipitation	93.7 mm (3.7 in)	49 of 100 (Notable)
South Johnstone Exp STN	Australia	Record daily precipitation	78.0 mm (3.1 in)	47 of 100 (Notable)
Gassaway	United States	Record daily precipitation	73.7 mm (2.9 in)	47 of 100 (Notable)
Barbourville	United States	Record daily precipitation	65.5 mm (2.6 in)	44 of 100 (Notable)
Clarksville Wwtp	United States	Record daily precipitation	45.2 mm (1.8 in)	44 of 100 (Notable)
Knoxville AP	United States	Record daily precipitation	59.9 mm (2.4 in)	44 of 100 (Notable)
Morgantown Muni AP	United States	Record daily precipitation	41.7 mm (1.6 in)	41 of 100 (Notable)
New Carlisle	United States	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Dover 1 W	United States	Record daily precipitation	43.7 mm (1.7 in)	40 of 100 (Notable)
Houston	United States	Record daily precipitation	64.0 mm (2.5 in)	39 of 100 (Notable)
Greeneville Exp STN	United States	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Oak Ridge Atdd	United States	Record daily precipitation	54.9 mm (2.2 in)	39 of 100 (Notable)
Lakeview 2 NNW	United States	Record high minimum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Cardwell Marine Pde	Australia	Record daily precipitation	32.0 mm (1.3 in)	37 of 100 (Notable)
Mourilyan Post Office	Australia	Record daily precipitation	54.0 mm (2.1 in)	35 of 100 (Notable)
Louisville	United States	Record daily precipitation	53.3 mm (2.1 in)	35 of 100 (Notable)
Klamath Falls 2 SSW	United States	Record high maximum temperature	34.4 C (93.9 F)	35 of 100 (Notable)
Dickson	United States	Record daily precipitation	38.9 mm (1.5 in)	35 of 100 (Notable)
Middletown 4 W	United States	Record high maximum temperature	31.1 C (88.0 F)	34 of 100 (Routine)
Delaware Lake	United States	Record daily precipitation	52.3 mm (2.1 in)	34 of 100 (Routine)
Gazimammad Aerodrom	Azerbaijan	Record daily precipitation	33.6 mm (1.3 in)	33 of 100 (Routine)
Babinda Post Office	Australia	Record daily precipitation	59.0 mm (2.3 in)	33 of 100 (Routine)
Millaa Millaa Post Office	Australia	Record daily precipitation	52.4 mm (2.1 in)	33 of 100 (Routine)
Worcester	South Africa	Record daily precipitation	25.0 mm (1.0 in)	33 of 100 (Routine)
Mt Sterling	United States	Record daily precipitation	37.6 mm (1.5 in)	33 of 100 (Routine)
Upper Sandusky	United States	Record daily precipitation	44.7 mm (1.8 in)	33 of 100 (Routine)
Sinton	United States	Record daily precipitation	85.9 mm (3.4 in)	33 of 100 (Routine)
McKenzie Rvr Rs	United States	Record high maximum temperature	37.8 C (100.0 F)	32 of 100 (Routine)
Petersburg 1	United States	Record daily precipitation	57.9 mm (2.3 in)	32 of 100 (Routine)
Jakutsk	Russia	Record low minimum temperature	-7.6 C (18.3 F)	31 of 100 (Routine)
Greenville 2 W	United States	Record daily precipitation	61.0 mm (2.4 in)	31 of 100 (Routine)
Rogersville 1 NE	United States	Record daily precipitation	71.4 mm (2.8 in)	31 of 100 (Routine)
Fort St James	Canada	Record high maximum temperature	26.0 C (78.8 F)	30 of 100 (Routine)
Kokomo 3 WSW	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Leitchfield 2 N	United States	Record daily precipitation	38.6 mm (1.5 in)	30 of 100 (Routine)
Ashland	United States	Record high maximum temperature	36.1 C (97.0 F)	30 of 100 (Routine)
Celina	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Bon Wier	United States	Record daily precipitation	76.2 mm (3.0 in)	30 of 100 (Routine)
Hamilton	United States	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Barron Upper 1	Australia	Record daily precipitation	40.0 mm (1.6 in)	28 of 100 (Routine)
Goondi Mill Csr	Australia	Record daily precipitation	55.4 mm (2.2 in)	28 of 100 (Routine)
Palpan	Mexico	Record high maximum temperature	31.7 C (89.1 F)	28 of 100 (Routine)
Humacao 2 SSE	Puerto Rico [United States]	Record high minimum temperature	26.1 C (79.0 F)	28 of 100 (Routine)
La Plaisante	South Africa	Record daily precipitation	33.0 mm (1.3 in)	28 of 100 (Routine)
McCloud	United States	Record high minimum temperature	10.0 C (50.0 F)	28 of 100 (Routine)
Pine Grove Fire Twr	United States	Record daily precipitation	60.5 mm (2.4 in)	28 of 100 (Routine)
Gholson 8 W	United States	Record daily precipitation	45.2 mm (1.8 in)	28 of 100 (Routine)
Headworks Portland Wtr B	United States	Record high maximum temperature	36.7 C (98.1 F)	28 of 100 (Routine)
Pennington Gap	United States	Record daily precipitation	33.0 mm (1.3 in)	28 of 100 (Routine)
South Johnstone Post Office	Australia	Record daily precipitation	90.0 mm (3.5 in)	27 of 100 (Routine)
Perpignan	France	Record high maximum temperature	31.1 C (88.0 F)	27 of 100 (Routine)
Semej	Kazakhstan	Record high maximum temperature	33.7 C (92.7 F)	27 of 100 (Routine)
Tulbagh (Pol)	South Africa	Record daily precipitation	34.1 mm (1.3 in)	27 of 100 (Routine)
Tyrone Lock 5	United States	Record daily precipitation	27.7 mm (1.1 in)	27 of 100 (Routine)
Pleasant Hill	United States	Record daily precipitation	66.8 mm (2.6 in)	27 of 100 (Routine)

Counts by Type and Timescale

613 records

Records set or tied on 15 September 1981 by type: Highest daily maximum 166, Lowest daily maximum 25, Highest daily minimum 84, Lowest daily minimum 91, Heaviest daily rainfall 247.

Records on 15 September 1981 by type
Record type	Records
Highest daily maximum	166
Lowest daily maximum	25
Highest daily minimum	84
Lowest daily minimum	91
Heaviest daily rainfall	247
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 1981 by timescale: all-time 0, monthly 11, daily 602.

How Much Records Were Beaten By

478 broken records

Margins by which the 478 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 121.4. Ties are not counted.

Top 20 by Significance

15 September 1981

Top 20 records on 15 September 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1981	Chiricahua Nm, US	daily rain	54.9 mm (2.2 in)	39.7 mm (1.6 in)	16 years	52 of 100 (Notable)
15 September 1981	Anahuac, US	daily rain	87.6 mm (3.4 in)	59.7 mm (2.4 in)	62 years	52 of 100 (Notable)
15 September 1981	Pichucalco (Smn), MX	daily low min	15.0 C (59.0 F)	5.0 C (9.0 F)	32 years	49 of 100 (Notable)
15 September 1981	Dunmor, US	daily rain	135.1 mm (5.3 in)	121.4 mm (4.8 in)	19 years	49 of 100 (Notable)
15 September 1981	Jennings, US	daily rain	75.9 mm (3.0 in)	40.6 mm (1.6 in)	80 years	49 of 100 (Notable)
15 September 1981	Allardt, US	daily rain	93.7 mm (3.7 in)	77.4 mm (3.0 in)	16 years	49 of 100 (Notable)
15 September 1981	South Johnstone Exp STN, AU	daily rain	78.0 mm (3.1 in)	47.0 mm (1.9 in)	6 years	47 of 100 (Notable)
15 September 1981	Gassaway, US	daily rain	73.7 mm (2.9 in)	38.1 mm (1.5 in)	28 years	47 of 100 (Notable)
15 September 1981	Barbourville, US	daily rain	65.5 mm (2.6 in)	51.3 mm (2.0 in)	8 years	44 of 100 (Notable)
15 September 1981	Clarksville Wwtp, US	daily rain	45.2 mm (1.8 in)	16.0 mm (0.6 in)	82 years	44 of 100 (Notable)
15 September 1981	Knoxville AP, US	daily rain	59.9 mm (2.4 in)	36.5 mm (1.4 in)	19 years	44 of 100 (Notable)
15 September 1981	Morgantown Muni AP, US	daily rain	41.7 mm (1.6 in)	24.9 mm (1.0 in)	28 years	41 of 100 (Notable)
15 September 1981	New Carlisle, US	daily rain	50.8 mm (2.0 in)	30.2 mm (1.2 in)	24 years	40 of 100 (Notable)
15 September 1981	Dover 1 W, US	daily rain	43.7 mm (1.7 in)	19.6 mm (0.8 in)	68 years	40 of 100 (Notable)
15 September 1981	Houston, US	daily rain	64.0 mm (2.5 in)	51.3 mm (2.0 in)	3 years	39 of 100 (Notable)
15 September 1981	Greeneville Exp STN, US	daily rain	33.0 mm (1.3 in)	7.1 mm (0.28 in)	80 years	39 of 100 (Notable)
15 September 1981	Oak Ridge Atdd, US	daily rain	54.9 mm (2.2 in)	40.7 mm (1.6 in)	24 years	39 of 100 (Notable)
15 September 1981	Lakeview 2 NNW, US	daily high min	14.4 C (57.9 F)	1.1 C (2.0 F)	92 years	38 of 100 (Notable)
15 September 1981	Cardwell Marine Pde, AU	daily rain	32.0 mm (1.3 in)	7.1 mm (0.28 in)	71 years	37 of 100 (Notable)
15 September 1981	Mourilyan Post Office, AU	daily rain	54.0 mm (2.1 in)	25.8 mm (1.0 in)	30 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

1797 to 1981

Records set or tied on this calendar date in each year from 1797 to 1981. 1981 had 613 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 1981-09-15: 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 20	438
20 to 40	31
40 to 60	7
60 to 80	1
80 to 100	0
100 to 120	0
120 to 140	1