Weather Records on 23 September 1977

616 weather records were set or tied worldwide on 23 September 1977. Highest significance: Ft Meade, US.

Key Facts for 23 September 1977

On 23 September 1977, 616 weather records were set or tied at long-record stations worldwide.
149 were record highs and 116 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 23 monthly and 593 daily.
Ft Meade set a daily record precipitation of 35.3 mm (1.4 in) on 23 September 1977.
Across 169 earlier years (1793 to 2026) the same calendar date averaged 430 records.

Record Map

616 stations

616 station records on 23 September 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 September 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ft Meade	United States	Record daily precipitation	35.3 mm (1.4 in)	59 of 100 (Notable)
Killdeer 8 NW	United States	Record daily precipitation	26.4 mm (1.0 in)	58 of 100 (Notable)
Redfield	United States	Record daily precipitation	51.6 mm (2.0 in)	58 of 100 (Notable)
Watertown Rgnl AP	United States	Record daily precipitation	61.0 mm (2.4 in)	57 of 100 (Notable)
Faith	United States	Record daily precipitation	50.8 mm (2.0 in)	56 of 100 (Notable)
Castlewood	United States	Record daily precipitation	42.7 mm (1.7 in)	55 of 100 (Notable)
Dupree	United States	Record daily precipitation	37.1 mm (1.5 in)	55 of 100 (Notable)
Syferfontein	South Africa	Record daily precipitation	58.5 mm (2.3 in)	54 of 100 (Notable)
Duiwelskloof (Mun)	South Africa	Record daily precipitation	66.0 mm (2.6 in)	54 of 100 (Notable)
Middelweg	South Africa	Record daily precipitation	50.0 mm (2.0 in)	53 of 100 (Notable)
Zomerkomst (Bos)	South Africa	Record daily precipitation	49.5 mm (1.9 in)	53 of 100 (Notable)
Lustre 4 NNW	United States	Record daily precipitation	42.4 mm (1.7 in)	53 of 100 (Notable)
Almont 7 W	United States	Record daily precipitation	41.7 mm (1.6 in)	52 of 100 (Notable)
Moffit 3 SE	United States	Record daily precipitation	40.6 mm (1.6 in)	52 of 100 (Notable)
Clear Lake	United States	Record daily precipitation	56.4 mm (2.2 in)	52 of 100 (Notable)
Farmingdale 4 N	United States	Record daily precipitation	55.9 mm (2.2 in)	52 of 100 (Notable)
Groenvlei (Skl)	South Africa	Record daily precipitation	56.0 mm (2.2 in)	50 of 100 (Notable)
Haenertsburg (Pol)	South Africa	Record daily precipitation	34.1 mm (1.3 in)	50 of 100 (Notable)
Fullerton 1 ESE	United States	Record daily precipitation	41.9 mm (1.6 in)	50 of 100 (Notable)
Milesville 5 NE	United States	Record daily precipitation	64.5 mm (2.5 in)	50 of 100 (Notable)
Ravenshill	South Africa	Record daily precipitation	43.0 mm (1.7 in)	49 of 100 (Notable)
Wasta	United States	Record daily precipitation	36.8 mm (1.4 in)	49 of 100 (Notable)
Buskala Rch	United States	Record daily precipitation	32.0 mm (1.3 in)	47 of 100 (Notable)
Mc Intosh 6 SE	United States	Record daily precipitation	47.0 mm (1.9 in)	47 of 100 (Notable)
Kalkfontein	South Africa	Record daily precipitation	55.0 mm (2.2 in)	46 of 100 (Notable)
Philip AP	United States	Record daily precipitation	38.1 mm (1.5 in)	46 of 100 (Notable)
Sarlyk	Russia	Record daily precipitation	29.9 mm (1.2 in)	45 of 100 (Notable)
Podor	Senegal	Record high maximum temperature	41.6 C (106.9 F)	45 of 100 (Notable)
Pollock	United States	Record daily precipitation	36.3 mm (1.4 in)	45 of 100 (Notable)
Rock Springs	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Sundance	United States	Record daily precipitation	31.8 mm (1.3 in)	45 of 100 (Notable)
Wales	United States	Record daily precipitation	27.4 mm (1.1 in)	45 of 100 (Notable)
Merensky (Skl)	South Africa	Record daily precipitation	44.5 mm (1.8 in)	44 of 100 (Notable)
Opheim 12 SSE	United States	Record daily precipitation	32.3 mm (1.3 in)	44 of 100 (Notable)
Midland	United States	Record daily precipitation	32.8 mm (1.3 in)	44 of 100 (Notable)
Aberdeen	United States	Record daily precipitation	39.4 mm (1.6 in)	44 of 100 (Notable)
Palmerville	Australia	Record low maximum temperature	29.5 C (85.1 F)	42 of 100 (Notable)
Klipfontein"Potfontein"	South Africa	Record daily precipitation	25.9 mm (1.0 in)	42 of 100 (Notable)
Faulkton	United States	Record daily precipitation	38.6 mm (1.5 in)	42 of 100 (Notable)
Highmore	United States	Record daily precipitation	30.5 mm (1.2 in)	42 of 100 (Notable)
Hopewell 1 SE	United States	Record daily precipitation	46.2 mm (1.8 in)	42 of 100 (Notable)
Piracaia	Brazil	Record daily precipitation	48.4 mm (1.9 in)	40 of 100 (Notable)
Skukuza	South Africa	Record daily precipitation	63.0 mm (2.5 in)	40 of 100 (Notable)
Middlekop (Bos)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	40 of 100 (Notable)
Champagne (Naf)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	39 of 100 (Notable)
Norfolk 2 SW	United States	Record low maximum temperature	10.0 C (50.0 F)	39 of 100 (Notable)
Colony	United States	Record daily precipitation	25.9 mm (1.0 in)	39 of 100 (Notable)
Francistown	Botswana	Record daily precipitation	28.5 mm (1.1 in)	38 of 100 (Notable)
Hettinger	United States	Record daily precipitation	29.5 mm (1.2 in)	38 of 100 (Notable)
Leola	United States	Record daily precipitation	29.5 mm (1.2 in)	38 of 100 (Notable)
Onida 4 NW	United States	Record daily precipitation	32.3 mm (1.3 in)	38 of 100 (Notable)
Timber Lake	United States	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Visconde de Rio Claro	Brazil	Record daily precipitation	56.5 mm (2.2 in)	37 of 100 (Notable)
Perelyub	Russia	Record daily precipitation	26.0 mm (1.0 in)	37 of 100 (Notable)
Gertruida	South Africa	Record daily precipitation	30.0 mm (1.2 in)	36 of 100 (Notable)
Balfour (Mag)	South Africa	Record daily precipitation	28.0 mm (1.1 in)	36 of 100 (Notable)
Heilbron (Tnk)	South Africa	Record daily precipitation	34.5 mm (1.4 in)	35 of 100 (Notable)
Schelm	South Africa	Record daily precipitation	92.0 mm (3.6 in)	35 of 100 (Notable)
Cumberland	United States	Record daily precipitation	57.7 mm (2.3 in)	35 of 100 (Notable)
Elk	United States	Record high maximum temperature	31.7 C (89.1 F)	35 of 100 (Notable)

Counts by Type and Timescale

616 records

Records set or tied on 23 September 1977 by type: Highest daily maximum 72, Lowest daily maximum 70, Highest daily minimum 77, Lowest daily minimum 46, Heaviest daily rainfall 341, Heaviest daily snowfall 9, Deepest snow cover 1.

Records on 23 September 1977 by type
Record type	Records
Highest daily maximum	72
Lowest daily maximum	70
Highest daily minimum	77
Lowest daily minimum	46
Heaviest daily rainfall	341
Heaviest daily snowfall	9
Deepest snow cover	1

Records on 23 September 1977 by timescale: all-time 0, monthly 23, daily 593.

How Much Records Were Beaten By

521 broken records

Margins by which the 521 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.

Top 20 by Significance

23 September 1977

Top 20 records on 23 September 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 September 1977	Ft Meade, US	daily rain	35.3 mm (1.4 in)	25.1 mm (1.0 in)	67 years	59 of 100 (Notable)
23 September 1977	Killdeer 8 NW, US	daily rain	26.4 mm (1.0 in)	26.4 mm (1.0 in)	83 years	58 of 100 (Notable)
23 September 1977	Redfield, US	daily rain	51.6 mm (2.0 in)	46.3 mm (1.8 in)	36 years	58 of 100 (Notable)
23 September 1977	Watertown Rgnl AP, US	daily rain	61.0 mm (2.4 in)	50.3 mm (2.0 in)	32 years	57 of 100 (Notable)
23 September 1977	Faith, US	daily rain	50.8 mm (2.0 in)	43.2 mm (1.7 in)	36 years	56 of 100 (Notable)
23 September 1977	Castlewood, US	daily rain	42.7 mm (1.7 in)	31.5 mm (1.2 in)	56 years	55 of 100 (Notable)
23 September 1977	Dupree, US	daily rain	37.1 mm (1.5 in)	28.0 mm (1.1 in)	48 years	55 of 100 (Notable)
23 September 1977	Syferfontein, ZA	daily rain	58.5 mm (2.3 in)	51.9 mm (2.0 in)	27 years	54 of 100 (Notable)
23 September 1977	Duiwelskloof (Mun), ZA	monthly rain	66.0 mm (2.6 in)	14.4 mm (0.6 in)	71 years	54 of 100 (Notable)
23 September 1977	Middelweg, ZA	daily rain	50.0 mm (2.0 in)	47.2 mm (1.9 in)	27 years	53 of 100 (Notable)
23 September 1977	Zomerkomst (Bos), ZA	daily rain	49.5 mm (1.9 in)	38.8 mm (1.5 in)	35 years	53 of 100 (Notable)
23 September 1977	Lustre 4 NNW, US	daily rain	42.4 mm (1.7 in)	22.1 mm (0.9 in)	47 years	53 of 100 (Notable)
23 September 1977	Almont 7 W, US	daily rain	41.7 mm (1.6 in)	36.9 mm (1.5 in)	31 years	52 of 100 (Notable)
23 September 1977	Moffit 3 SE, US	daily rain	40.6 mm (1.6 in)	36.8 mm (1.4 in)	31 years	52 of 100 (Notable)
23 September 1977	Clear Lake, US	daily rain	56.4 mm (2.2 in)	48.8 mm (1.9 in)	16 years	52 of 100 (Notable)
23 September 1977	Farmingdale 4 N, US	daily rain	55.9 mm (2.2 in)	52.9 mm (2.1 in)	16 years	52 of 100 (Notable)
23 September 1977	Groenvlei (Skl), ZA	monthly rain	56.0 mm (2.2 in)	23.0 mm (0.9 in)	34 years	50 of 100 (Notable)
23 September 1977	Haenertsburg (Pol), ZA	daily rain	34.1 mm (1.3 in)	27.7 mm (1.1 in)	44 years	50 of 100 (Notable)
23 September 1977	Fullerton 1 ESE, US	daily rain	41.9 mm (1.6 in)	26.7 mm (1.1 in)	56 years	50 of 100 (Notable)
23 September 1977	Milesville 5 NE, US	daily rain	64.5 mm (2.5 in)	56.4 mm (2.2 in)	16 years	50 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

1793 to 1977

Records set or tied on this calendar date in each year from 1793 to 1977. 1977 had 616 records.

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

Records on 09-23 in each year
Year	Records
1793	1
1796	1
1799	1
1804	1
1832	1
1835	1
1838	1
1842	3
1843	1
1845	2
1848	1
1849	1
1850	1
1851	2
1854	3
1855	1
1859	2
1864	1
1865	1
1866	1
1868	1
1871	1
1872	1
1874	1
1875	1
1876	1
1877	1
1881	4
1882	2
1885	1
1886	1
1887	1
1888	1
1889	3
1890	2
1891	1
1892	2
1893	4
1895	9
1896	5
1897	1
1898	2
1899	4
1900	4
1901	2
1902	6
1903	7
1904	19
1905	6
1906	6
1907	19
1908	19
1909	15
1910	8
1911	11
1912	15
1913	22
1914	29
1915	25
1916	324
1917	56
1918	34
1919	40
1920	44
1921	47
1922	34
1923	74
1924	194
1925	223
1926	459
1927	247
1928	382
1929	198
1930	472
1931	600
1932	383
1933	281
1934	361
1935	239
1936	377
1937	557
1938	389
1939	279
1940	374
1941	490
1942	557
1943	322
1944	381
1945	652
1946	623
1947	803
1948	259
1949	496
1950	267
1951	462
1952	432
1953	271
1954	324
1955	852
1956	299
1957	539
1958	641
1959	307
1960	470
1961	670
1962	344
1963	568
1964	322
1965	783
1966	528
1967	341
1968	481
1969	450
1970	1,457
1971	578
1972	461
1973	674
1974	1,543
1975	1,038
1976	463
1977	616
1978	500
1979	586
1980	1,037
1981	717
1982	775
1983	1,744
1984	1,121
1985	924
1986	740
1987	1,077
1988	653
1989	1,376
1990	702
1991	519
1992	976
1993	983
1994	1,140
1995	1,868
1996	809
1997	1,060
1998	1,326
1999	1,207
2000	2,026
2001	790
2002	930
2003	1,243
2004	986
2005	1,207
2006	1,509
2007	1,153
2008	835
2009	1,201
2010	1,360
2011	666
2012	785
2013	573
2014	595
2015	587
2016	774
2017	1,371
2018	693
2019	565
2020	618
2021	602
2022	551
2023	812
2024	499
2025	449
2026	384

Download the Data

Data for records on 1977-09-23: 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	402
10 to 20	73
20 to 30	25
30 to 40	9
40 to 50	6
50 to 60	5
60 to 70	0
70 to 80	1