Weather Records on 20 September 1980

567 weather records were set or tied worldwide on 20 September 1980. Highest significance: Novais, BR.

Key Facts for 20 September 1980

On 20 September 1980, 567 weather records were set or tied at long-record stations worldwide.
356 were record highs and 57 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 557 daily.
Novais set a daily record precipitation of 69.1 mm (2.7 in) on 20 September 1980.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 441 records.

Record Map

567 stations

567 station records on 20 September 1980 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1980: highest significance records shown on the map
Station	Country	Type	Value	Significance
Novais	Brazil	Record daily precipitation	69.1 mm (2.7 in)	47 of 100 (Notable)
Caninde	Brazil	Record daily precipitation	52.6 mm (2.1 in)	46 of 100 (Notable)
Anderson FAA AP	United States	Record daily precipitation	84.3 mm (3.3 in)	44 of 100 (Notable)
Mont-Aigoual	France	Record daily precipitation	110.0 mm (4.3 in)	43 of 100 (Notable)
Morgan 1 W	United States	Record high minimum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Allison	United States	Record daily precipitation	63.5 mm (2.5 in)	41 of 100 (Notable)
Milan	Italy	Record high minimum temperature	20.1 C (68.2 F)	40 of 100 (Notable)
Independence #1	United States	Record daily precipitation	35.6 mm (1.4 in)	40 of 100 (Notable)
Franca	Brazil	Record daily precipitation	51.0 mm (2.0 in)	39 of 100 (Notable)
Rhinelander	United States	Record daily precipitation	53.3 mm (2.1 in)	39 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record daily precipitation	26.9 mm (1.1 in)	37 of 100 (Notable)
Enterprise Rs	United States	Record daily precipitation	25.7 mm (1.0 in)	37 of 100 (Notable)
Manassas 3 NW	United States	Record high minimum temperature	21.1 C (70.0 F)	37 of 100 (Notable)
Archer	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Coloso	Puerto Rico [United States]	Record high minimum temperature	25.6 C (78.1 F)	35 of 100 (Notable)
Beaver City	United States	Record high maximum temperature	37.8 C (100.0 F)	35 of 100 (Notable)
Hebron	United States	Record high maximum temperature	36.7 C (98.1 F)	35 of 100 (Notable)
Alva 1W	United States	Record high minimum temperature	25.6 C (78.1 F)	35 of 100 (Notable)
Malvern	United Kingdom	Record daily precipitation	27.3 mm (1.1 in)	34 of 100 (Routine)
Ashland	United States	Record high maximum temperature	38.9 C (102.0 F)	34 of 100 (Routine)
Yates Ctr	United States	Record high minimum temperature	21.7 C (71.1 F)	34 of 100 (Routine)
La Crosse River	United States	Record daily precipitation	52.1 mm (2.1 in)	34 of 100 (Routine)
Sheffield	United Kingdom	Record high maximum temperature	21.4 C (70.5 F)	33 of 100 (Routine)
Sanborn	United States	Record daily precipitation	50.8 mm (2.0 in)	33 of 100 (Routine)
Norton 9SSE	United States	Record high maximum temperature	40.6 C (105.1 F)	33 of 100 (Routine)
La Crosse Muni AP	United States	Record daily precipitation	52.1 mm (2.1 in)	33 of 100 (Routine)
Clayton 1 SSW	United States	Record high minimum temperature	19.4 C (66.9 F)	32 of 100 (Routine)
Eskridge	United States	Record high minimum temperature	21.7 C (71.1 F)	32 of 100 (Routine)
Fish Creek (Hoddle Range)	Australia	Record daily precipitation	25.0 mm (1.0 in)	31 of 100 (Routine)
Elkhart	United States	Record high maximum temperature	37.8 C (100.0 F)	31 of 100 (Routine)
Fredonia	United States	Record high minimum temperature	26.7 C (80.1 F)	31 of 100 (Routine)
Holton	United States	Record high maximum temperature	35.0 C (95.0 F)	31 of 100 (Routine)
Ulysses 3NE	United States	Record high maximum temperature	38.3 C (100.9 F)	31 of 100 (Routine)
Aurora	United States	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Ft Myers Page Fld AP	United States	Record high maximum temperature	35.0 C (95.0 F)	31 of 100 (Routine)
Agua Branca	Brazil	Record daily precipitation	32.7 mm (1.3 in)	30 of 100 (Routine)
Gorakhpur	India	Record daily precipitation	80.0 mm (3.1 in)	30 of 100 (Routine)
Chinook	United States	Record high minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)
Monroe Rgnl AP	United States	Record high minimum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Cimarron	United States	Record high maximum temperature	36.7 C (98.1 F)	29 of 100 (Routine)
Oberlin	United States	Record high maximum temperature	38.3 C (100.9 F)	29 of 100 (Routine)
Holdrege	United States	Record high maximum temperature	36.7 C (98.1 F)	29 of 100 (Routine)
Kingstree	United States	Record daily precipitation	41.1 mm (1.6 in)	29 of 100 (Routine)
Ft Myers Page Fld AP	United States	Record high minimum temperature	26.1 C (79.0 F)	29 of 100 (Routine)
Montmorillon	France	Record daily precipitation	31.1 mm (1.2 in)	28 of 100 (Routine)
Alton 1 W	United States	Record high maximum temperature	38.9 C (102.0 F)	28 of 100 (Routine)
Pratt 3NW	United States	Record high maximum temperature	35.6 C (96.1 F)	28 of 100 (Routine)
Hampton	United States	Record daily precipitation	47.8 mm (1.9 in)	27 of 100 (Routine)
Harmony	United States	Record daily precipitation	74.9 mm (2.9 in)	27 of 100 (Routine)
Diablo Dam	United States	Record daily precipitation	54.4 mm (2.1 in)	27 of 100 (Routine)
Alhandra	Brazil	Record daily precipitation	38.1 mm (1.5 in)	26 of 100 (Routine)
Poitiers - Biard	France	Record daily precipitation	27.4 mm (1.1 in)	26 of 100 (Routine)
Szombathely	Hungary	Record high minimum temperature	14.7 C (58.5 F)	26 of 100 (Routine)
San Bartolo	Mexico	Record high maximum temperature	40.0 C (104.0 F)	26 of 100 (Routine)
Tillabery	Niger	Record high maximum temperature	41.6 C (106.9 F)	26 of 100 (Routine)
Cornelia	United States	Record daily precipitation	75.7 mm (3.0 in)	26 of 100 (Routine)
Hartwell	United States	Record daily precipitation	76.2 mm (3.0 in)	26 of 100 (Routine)
Centralia	United States	Record high minimum temperature	23.9 C (75.0 F)	26 of 100 (Routine)
Larned	United States	Record high minimum temperature	22.2 C (72.0 F)	26 of 100 (Routine)
Manhattan	United States	Record high minimum temperature	25.0 C (77.0 F)	26 of 100 (Routine)

Counts by Type and Timescale

567 records

Records set or tied on 20 September 1980 by type: Highest daily maximum 163, Lowest daily maximum 40, Highest daily minimum 193, Lowest daily minimum 17, Heaviest daily rainfall 148, Heaviest daily snowfall 5, Deepest snow cover 1.

Records on 20 September 1980 by type
Record type	Records
Highest daily maximum	163
Lowest daily maximum	40
Highest daily minimum	193
Lowest daily minimum	17
Heaviest daily rainfall	148
Heaviest daily snowfall	5
Deepest snow cover	1

Records on 20 September 1980 by timescale: all-time 0, monthly 10, daily 557.

How Much Records Were Beaten By

429 broken records

Margins by which the 429 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 700.0. Ties are not counted.

Top 20 by Significance

20 September 1980

Top 20 records on 20 September 1980 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1980	Novais, BR	daily rain	69.1 mm (2.7 in)	51.1 mm (2.0 in)	10 years	47 of 100 (Notable)
20 September 1980	Caninde, BR	daily rain	52.6 mm (2.1 in)	42.4 mm (1.7 in)	28 years	46 of 100 (Notable)
20 September 1980	Anderson FAA AP, US	daily rain	84.3 mm (3.3 in)	76.9 mm (3.0 in)	4 years	44 of 100 (Notable)
20 September 1980	Mont-Aigoual, FR	daily rain	110.0 mm (4.3 in)	74.0 mm (2.9 in)	48 years	43 of 100 (Notable)
20 September 1980	Morgan 1 W, US	daily high min	25.6 C (78.1 F)	2.8 C (5.0 F)	83 years	41 of 100 (Notable)
20 September 1980	Allison, US	daily rain	63.5 mm (2.5 in)	28.4 mm (1.1 in)	57 years	41 of 100 (Notable)
20 September 1980	Milan, IT	daily high min	20.1 C (68.2 F)	0.1 C (0.2 F)	189 years	40 of 100 (Notable)
20 September 1980	Independence #1, US	daily rain	35.6 mm (1.4 in)	0.8 mm (0.03 in)	101 years	40 of 100 (Notable)
20 September 1980	Franca, BR	daily rain	51.0 mm (2.0 in)	41.4 mm (1.6 in)	28 years	39 of 100 (Notable)
20 September 1980	Rhinelander, US	daily rain	53.3 mm (2.1 in)	19.5 mm (0.8 in)	49 years	39 of 100 (Notable)
20 September 1980	Dublin Phoenix Park, IE	daily rain	26.9 mm (1.1 in)	7.3 mm (0.29 in)	53 years	37 of 100 (Notable)
20 September 1980	Enterprise Rs, US	daily rain	25.7 mm (1.0 in)	14.5 mm (0.6 in)	16 years	37 of 100 (Notable)
20 September 1980	Manassas 3 NW, US	daily high min	21.1 C (70.0 F)	2.2 C (4.0 F)	84 years	37 of 100 (Notable)
20 September 1980	Archer, US	daily rain	31.8 mm (1.3 in)	15.8 mm (0.6 in)	25 years	36 of 100 (Notable)
20 September 1980	Coloso, PR	daily high min	25.6 C (78.1 F)	2.3 C (4.1 F)	31 years	35 of 100 (Notable)
20 September 1980	Beaver City, US	daily high max	37.8 C (100.0 F)	1.7 C (3.1 F)	84 years	35 of 100 (Notable)
20 September 1980	Hebron, US	daily high max	36.7 C (98.1 F)	1.1 C (2.0 F)	86 years	35 of 100 (Notable)
20 September 1980	Alva 1W, US	daily high min	25.6 C (78.1 F)	1.2 C (2.2 F)	84 years	35 of 100 (Notable)
20 September 1980	Malvern, GB	daily rain	27.3 mm (1.1 in)	8.1 mm (0.32 in)	44 years	34 of 100 (Routine)
20 September 1980	Ashland, US	daily high max	38.9 C (102.0 F)	2.8 C (5.0 F)	70 years	34 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

1812 to 1980

Records set or tied on this calendar date in each year from 1812 to 1980. 1980 had 567 records.

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

Records on 09-20 in each year
Year	Records
1812	1
1837	1
1840	1
1844	1
1848	2
1851	1
1852	1
1854	2
1855	1
1856	2
1859	2
1860	1
1862	1
1870	1
1871	2
1882	2
1883	1
1884	1
1886	2
1887	1
1888	2
1889	8
1891	4
1893	5
1894	1
1895	2
1896	1
1897	16
1898	4
1899	1
1900	2
1901	3
1902	3
1903	3
1904	12
1905	8
1906	22
1907	11
1908	24
1909	10
1910	8
1911	21
1912	34
1913	48
1914	28
1915	239
1916	28
1917	100
1918	59
1919	55
1920	64
1921	40
1922	52
1923	249
1924	329
1925	330
1926	129
1927	169
1928	144
1929	373
1930	102
1931	564
1932	270
1933	223
1934	349
1935	201
1936	133
1937	385
1938	506
1939	312
1940	591
1941	582
1942	436
1943	419
1944	466
1945	406
1946	766
1947	460
1948	454
1949	268
1950	435
1951	267
1952	434
1953	479
1954	628
1955	625
1956	985
1957	514
1958	410
1959	489
1960	352
1961	384
1962	707
1963	290
1964	482
1965	1,180
1966	414
1967	449
1968	617
1969	604
1970	591
1971	884
1972	582
1973	569
1974	771
1975	527
1976	375
1977	776
1978	1,216
1979	767
1980	567
1981	979
1982	911
1983	1,958
1984	895
1985	730
1986	743
1987	856
1988	698
1989	968
1990	743
1991	1,835
1992	718
1993	1,031
1994	788
1995	1,374
1996	1,077
1997	1,282
1998	1,157
1999	923
2000	908
2001	821
2002	845
2003	910
2004	1,156
2005	960
2006	732
2007	645
2008	648
2009	715
2010	1,497
2011	650
2012	549
2013	595
2014	577
2015	439
2016	778
2017	920
2018	1,020
2019	835
2020	630
2021	565
2022	786
2023	482
2024	596
2025	877
2026	682

Download the Data

Data for records on 1980-09-20: 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 100	428
100 to 200	0
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	1