Weather Records on 20 September 1987

856 weather records were set or tied worldwide on 20 September 1987. Highest significance: Tafelberg Hall, ZA.

Key Facts for 20 September 1987

On 20 September 1987, 856 weather records were set or tied at long-record stations worldwide.
451 were record highs and 150 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 15 monthly and 841 daily.
Tafelberg Hall set a daily record precipitation of 35.0 mm (1.4 in) on 20 September 1987.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 439 records.

Record Map

856 stations

856 station records on 20 September 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tafelberg Hall	South Africa	Record daily precipitation	35.0 mm (1.4 in)	80 of 100 (Exceptional)
Fort Donald (Bos)	South Africa	Record daily precipitation	32.3 mm (1.3 in)	56 of 100 (Notable)
Mequatlingsnek	South Africa	Record daily precipitation	57.5 mm (2.3 in)	56 of 100 (Notable)
Villagran (Smn)	Mexico	Record daily precipitation	111.0 mm (4.4 in)	52 of 100 (Notable)
Majsk	Russia	Record daily precipitation	34.0 mm (1.3 in)	52 of 100 (Notable)
Tshatsheni (Bos)	South Africa	Record daily precipitation	53.4 mm (2.1 in)	52 of 100 (Notable)
Taung	South Africa	Record daily precipitation	40.0 mm (1.6 in)	52 of 100 (Notable)
Chokpar	Kazakhstan	Record daily precipitation	25.6 mm (1.0 in)	51 of 100 (Notable)
Burno-Oktyabrsk	Kazakhstan	Record daily precipitation	25.6 mm (1.0 in)	47 of 100 (Notable)
Jaboticatubas	Brazil	Record daily precipitation	50.2 mm (2.0 in)	45 of 100 (Notable)
Moorefield 1 SSE	United States	Record daily precipitation	34.0 mm (1.3 in)	45 of 100 (Notable)
Brunswick NAS	United States	Record daily precipitation	76.2 mm (3.0 in)	45 of 100 (Notable)
Hyannis	United States	Record daily precipitation	89.9 mm (3.5 in)	44 of 100 (Notable)
Kaawaloa 29	United States	Record daily precipitation	57.9 mm (2.3 in)	44 of 100 (Notable)
Valentia Observatory	Ireland	Record daily precipitation	41.5 mm (1.6 in)	43 of 100 (Notable)
Nueva Esperanza	Mexico	Record high minimum temperature	26.7 C (80.1 F)	42 of 100 (Notable)
Tabankulu (Bos)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	42 of 100 (Notable)
Humacao 2 SSE	Puerto Rico [United States]	Record low maximum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record high maximum temperature	14.4 C (57.9 F)	41 of 100 (Notable)
Huichapan	Mexico	Record low maximum temperature	12.8 C (55.0 F)	39 of 100 (Notable)
Orono	United States	Record daily precipitation	47.0 mm (1.9 in)	38 of 100 (Notable)
Salzburg	Austria	Record high minimum temperature	17.5 C (63.5 F)	36 of 100 (Notable)
Santa Rosa	Mexico	Record daily precipitation	42.9 mm (1.7 in)	36 of 100 (Notable)
Arad	Romania	Record high maximum temperature	31.2 C (88.2 F)	36 of 100 (Notable)
College Park	United States	Record low maximum temperature	16.7 C (62.1 F)	36 of 100 (Notable)
Flemington 5 NNW	United States	Record low maximum temperature	14.4 C (57.9 F)	36 of 100 (Notable)
Natitingou	Benin	Record daily precipitation	97.0 mm (3.8 in)	35 of 100 (Notable)
Chon-Arik	Kyrgyzstan	Record daily precipitation	31.1 mm (1.2 in)	35 of 100 (Notable)
Frederick Police Brks	United States	Record low maximum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Tuckerton 2 NE	United States	Record low maximum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Purcellville	United States	Record low maximum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Karlsruhe	Germany	Record high minimum temperature	18.3 C (64.9 F)	34 of 100 (Routine)
Freiburg	Germany	Record high minimum temperature	19.0 C (66.2 F)	34 of 100 (Routine)
San Juan de Los Lagos	Mexico	Record daily precipitation	58.9 mm (2.3 in)	34 of 100 (Routine)
Huetamo	Mexico	Record high maximum temperature	41.7 C (107.1 F)	34 of 100 (Routine)
Scotland Neck	United States	Record daily precipitation	104.1 mm (4.1 in)	34 of 100 (Routine)
Augusta State AP	United States	Record daily precipitation	48.3 mm (1.9 in)	34 of 100 (Routine)
Kaiserslautern	Germany	Record high minimum temperature	17.6 C (63.7 F)	33 of 100 (Routine)
Chokpak	Kazakhstan	Record daily precipitation	31.6 mm (1.2 in)	33 of 100 (Routine)
Mojave	United States	Record high maximum temperature	35.0 C (95.0 F)	33 of 100 (Routine)
Gunnedah Pool	Australia	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Hyannis	United States	Record low maximum temperature	15.0 C (59.0 F)	32 of 100 (Routine)
Conceicao Do Mato D	Brazil	Record daily precipitation	32.2 mm (1.3 in)	31 of 100 (Routine)
Uzgen	Kyrgyzstan	Record daily precipitation	29.0 mm (1.1 in)	31 of 100 (Routine)
Nueva Esperanza	Mexico	Record high maximum temperature	37.8 C (100.0 F)	31 of 100 (Routine)
Poortjie	South Africa	Record daily precipitation	25.0 mm (1.0 in)	31 of 100 (Routine)
Weifang	China	Record high maximum temperature	36.6 C (97.9 F)	30 of 100 (Routine)
Nurnberg	Germany	Record high minimum temperature	16.0 C (60.8 F)	30 of 100 (Routine)
Bombana (Cfe)	Mexico	Record high maximum temperature	38.9 C (102.0 F)	30 of 100 (Routine)
Tangancicuaro	Mexico	Record low minimum temperature	5.0 C (41.0 F)	30 of 100 (Routine)
Macuspana (Dge)	Mexico	Record high minimum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Haverhill	United States	Record daily precipitation	57.4 mm (2.3 in)	30 of 100 (Routine)
Bangor Intl AP	United States	Record daily precipitation	44.5 mm (1.8 in)	30 of 100 (Routine)
Yanji	China	Record daily precipitation	29.7 mm (1.2 in)	29 of 100 (Routine)
Marseille Obs. Palais-Lonchamp	France	Record high maximum temperature	30.5 C (86.9 F)	29 of 100 (Routine)
Amanzamnyama (Bos)	South Africa	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)
Camperdown	South Africa	Record daily precipitation	32.0 mm (1.3 in)	29 of 100 (Routine)
Barcelona -Fabra Observatory	Spain	Record high maximum temperature	30.0 C (86.0 F)	29 of 100 (Routine)
Le Bourget	France	Record high maximum temperature	30.0 C (86.0 F)	28 of 100 (Routine)
Stuttgart-Stadt	Germany	Record high minimum temperature	17.1 C (62.8 F)	28 of 100 (Routine)

Counts by Type and Timescale

856 records

Records set or tied on 20 September 1987 by type: Highest daily maximum 199, Lowest daily maximum 103, Highest daily minimum 252, Lowest daily minimum 47, Heaviest daily rainfall 254, Heaviest daily snowfall 1.

Records on 20 September 1987 by type
Record type	Records
Highest daily maximum	199
Lowest daily maximum	103
Highest daily minimum	252
Lowest daily minimum	47
Heaviest daily rainfall	254
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 20 September 1987 by timescale: all-time 0, monthly 15, daily 841.

How Much Records Were Beaten By

698 broken records

Margins by which the 698 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 91.2. Ties are not counted.

Top 20 by Significance

20 September 1987

Top 20 records on 20 September 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1987	Tafelberg Hall, ZA	daily rain	35.0 mm (1.4 in)	32.0 mm (1.3 in)	100 years	80 of 100 (Exceptional)
20 September 1987	Fort Donald (Bos), ZA	daily rain	32.3 mm (1.3 in)	24.7 mm (1.0 in)	65 years	56 of 100 (Notable)
20 September 1987	Mequatlingsnek, ZA	daily rain	57.5 mm (2.3 in)	39.2 mm (1.5 in)	49 years	56 of 100 (Notable)
20 September 1987	Villagran (Smn), MX	daily rain	111.0 mm (4.4 in)	91.2 mm (3.6 in)	38 years	52 of 100 (Notable)
20 September 1987	Majsk, RU	daily rain	34.0 mm (1.3 in)	19.8 mm (0.8 in)	30 years	52 of 100 (Notable)
20 September 1987	Tshatsheni (Bos), ZA	daily rain	53.4 mm (2.1 in)	41.4 mm (1.6 in)	21 years	52 of 100 (Notable)
20 September 1987	Taung, ZA	daily rain	40.0 mm (1.6 in)	30.1 mm (1.2 in)	73 years	52 of 100 (Notable)
20 September 1987	Chokpar, KZ	daily rain	25.6 mm (1.0 in)	17.5 mm (0.7 in)	40 years	51 of 100 (Notable)
20 September 1987	Burno-Oktyabrsk, KZ	daily rain	25.6 mm (1.0 in)	14.0 mm (0.6 in)	40 years	47 of 100 (Notable)
20 September 1987	Jaboticatubas, BR	daily rain	50.2 mm (2.0 in)	46.1 mm (1.8 in)	4 years	45 of 100 (Notable)
20 September 1987	Moorefield 1 SSE, US	daily rain	34.0 mm (1.3 in)	18.8 mm (0.7 in)	68 years	45 of 100 (Notable)
20 September 1987	Brunswick NAS, US	daily rain	76.2 mm (3.0 in)	63.0 mm (2.5 in)	9 years	45 of 100 (Notable)
20 September 1987	Hyannis, US	daily rain	89.9 mm (3.5 in)	51.8 mm (2.0 in)	14 years	44 of 100 (Notable)
20 September 1987	Kaawaloa 29, US	daily rain	57.9 mm (2.3 in)	38.6 mm (1.5 in)	25 years	44 of 100 (Notable)
20 September 1987	Valentia Observatory, IE	daily rain	41.5 mm (1.6 in)	23.2 mm (0.9 in)	33 years	43 of 100 (Notable)
20 September 1987	Nueva Esperanza, MX	daily high min	26.7 C (80.1 F)	3.4 C (6.1 F)	17 years	42 of 100 (Notable)
20 September 1987	Tabankulu (Bos), ZA	daily rain	34.0 mm (1.3 in)	17.5 mm (0.7 in)	62 years	42 of 100 (Notable)
20 September 1987	Humacao 2 SSE, PR	daily low max	24.4 C (75.9 F)	3.4 C (6.1 F)	40 years	41 of 100 (Notable)
20 September 1987	Col du Grand St-Bernard, CH	daily high max	14.4 C (57.9 F)	1.5 C (2.7 F)	94 years	41 of 100 (Notable)
20 September 1987	Huichapan, MX	daily low max	12.8 C (55.0 F)	5.0 C (9.0 F)	53 years	39 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

1812 to 1987

Records set or tied on this calendar date in each year from 1812 to 1987. 1987 had 856 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 1987-09-20: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 20	673
20 to 40	20
40 to 60	3
60 to 80	1
80 to 100	1