Weather Records on 22 September 1977

632 weather records were set or tied worldwide on 22 September 1977. Highest significance: Maraisburg (Gm), ZA.

Key Facts for 22 September 1977

On 22 September 1977, 632 weather records were set or tied at long-record stations worldwide.
153 were record highs and 200 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 21 monthly and 611 daily.
Maraisburg (Gm) set a daily record precipitation of 36.0 mm (1.4 in) on 22 September 1977.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 427 records.

Record Map

632 stations

632 station records on 22 September 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 22 September 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Maraisburg (Gm)	South Africa	Record daily precipitation	36.0 mm (1.4 in)	64 of 100 (Major)
Klerkskraal (Pol)	South Africa	Record daily precipitation	27.4 mm (1.1 in)	61 of 100 (Major)
Springview 2NW	United States	Record daily precipitation	50.8 mm (2.0 in)	56 of 100 (Notable)
Klipspruit (Pur)	South Africa	Record daily precipitation	29.0 mm (1.1 in)	55 of 100 (Notable)
Makwassie	South Africa	Record daily precipitation	38.0 mm (1.5 in)	49 of 100 (Notable)
Mimosa Park	South Africa	Record daily precipitation	25.0 mm (1.0 in)	49 of 100 (Notable)
Germiston-Fj Payne Park	South Africa	Record daily precipitation	35.5 mm (1.4 in)	48 of 100 (Notable)
Jhb-Turffontein	South Africa	Record daily precipitation	30.0 mm (1.2 in)	47 of 100 (Notable)
Wadena 3 S	United States	Record daily precipitation	48.0 mm (1.9 in)	46 of 100 (Notable)
Gaborone	Botswana	Record daily precipitation	27.6 mm (1.1 in)	45 of 100 (Notable)
Brakpan (Mun)	South Africa	Record daily precipitation	25.0 mm (1.0 in)	45 of 100 (Notable)
Blue Hill Coop	United States	Record low maximum temperature	8.9 C (48.0 F)	45 of 100 (Notable)
Lawrence	United States	Record low maximum temperature	10.0 C (50.0 F)	45 of 100 (Notable)
Forman 5 SSE	United States	Record daily precipitation	32.8 mm (1.3 in)	45 of 100 (Notable)
Northway AP	United States	Record daily precipitation	28.4 mm (1.1 in)	44 of 100 (Notable)
Yarima	South Africa	Record daily precipitation	31.0 mm (1.2 in)	42 of 100 (Notable)
Bovenlandsplaats	South Africa	Record daily precipitation	28.5 mm (1.1 in)	42 of 100 (Notable)
Chestnut Hill	United States	Record low maximum temperature	10.0 C (50.0 F)	42 of 100 (Notable)
Dwarsfontein	South Africa	Record daily precipitation	32.5 mm (1.3 in)	41 of 100 (Notable)
Buffelshoek	South Africa	Record daily precipitation	32.0 mm (1.3 in)	41 of 100 (Notable)
Middletown 4 W	United States	Record low maximum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Bowman	United States	Record daily precipitation	30.5 mm (1.2 in)	40 of 100 (Notable)
Verblyding	South Africa	Record daily precipitation	60.0 mm (2.4 in)	39 of 100 (Notable)
Dunkeld	South Africa	Record daily precipitation	25.7 mm (1.0 in)	39 of 100 (Notable)
Haugan 1 W	United States	Record daily snowfall	6.4 cm (2.5 in)	37 of 100 (Notable)
Roodepoort	South Africa	Record daily precipitation	32.5 mm (1.3 in)	36 of 100 (Notable)
Kaallaagte	South Africa	Record daily precipitation	26.5 mm (1.0 in)	35 of 100 (Notable)
Grootvlei (Pol)	South Africa	Record daily precipitation	26.0 mm (1.0 in)	35 of 100 (Notable)
Lichtenburg	South Africa	Record daily precipitation	26.0 mm (1.0 in)	35 of 100 (Notable)
Spokane Intl AP	United States	Record low minimum temperature	0.0 C (32.0 F)	34 of 100 (Routine)
Palmerville	Australia	Record low maximum temperature	29.5 C (85.1 F)	33 of 100 (Routine)
Welverdiend (Pol)	South Africa	Record daily precipitation	29.5 mm (1.2 in)	33 of 100 (Routine)
Amidon	United States	Record daily precipitation	28.4 mm (1.1 in)	33 of 100 (Routine)
Moosomin	Canada	Record high minimum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Edenville (Mun)	South Africa	Record daily precipitation	37.0 mm (1.5 in)	32 of 100 (Routine)
Klipdrift	South Africa	Record daily precipitation	33.5 mm (1.3 in)	32 of 100 (Routine)
Zamenkomst	South Africa	Record daily precipitation	52.0 mm (2.0 in)	31 of 100 (Routine)
Fitchburg 4 SE	United States	Record low maximum temperature	10.6 C (51.1 F)	31 of 100 (Routine)
Usina Esmeril (Cpfl) B4-005	Brazil	Record daily precipitation	48.5 mm (1.9 in)	30 of 100 (Routine)
Coloso	Puerto Rico [United States]	Record low maximum temperature	29.4 C (84.9 F)	30 of 100 (Routine)
Wexford	South Africa	Record daily precipitation	31.0 mm (1.2 in)	30 of 100 (Routine)
Georgetown	United States	Record high maximum temperature	35.6 C (96.1 F)	30 of 100 (Routine)
Sobolevo	Russia	Record daily precipitation	31.3 mm (1.2 in)	29 of 100 (Routine)
Fredrikstad (Sar)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	29 of 100 (Routine)
Cavendish	United States	Record low maximum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Snake Rvr	United States	Record low maximum temperature	5.0 C (41.0 F)	29 of 100 (Routine)
Araraquara	Brazil	Record daily precipitation	30.8 mm (1.2 in)	28 of 100 (Routine)
Berlin	United States	Record low maximum temperature	7.2 C (45.0 F)	28 of 100 (Routine)
San Saba	United States	Record high maximum temperature	35.0 C (95.0 F)	28 of 100 (Routine)
Sao Luiz Do Quitunde	Brazil	Record daily precipitation	32.0 mm (1.3 in)	27 of 100 (Routine)
Impendle (Pol)	South Africa	Record daily precipitation	31.0 mm (1.2 in)	27 of 100 (Routine)
Jungapeo	Mexico	Record high maximum temperature	33.9 C (93.0 F)	26 of 100 (Routine)
Tevriz	Russia	Record daily precipitation	32.0 mm (1.3 in)	26 of 100 (Routine)
Boksburg (Mun)	South Africa	Record daily precipitation	28.5 mm (1.1 in)	26 of 100 (Routine)
E Wareham	United States	Record low maximum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
Miller	United States	Record daily precipitation	33.3 mm (1.3 in)	26 of 100 (Routine)
Virden	Canada	Record high minimum temperature	10.6 C (51.1 F)	25 of 100 (Routine)
Nice	France	Record low maximum temperature	17.2 C (63.0 F)	25 of 100 (Routine)
Piaxtla	Mexico	Record high minimum temperature	21.7 C (71.1 F)	25 of 100 (Routine)
Chita	Russia	Record high maximum temperature	26.3 C (79.3 F)	25 of 100 (Routine)

Counts by Type and Timescale

632 records

Records set or tied on 22 September 1977 by type: Highest daily maximum 89, Lowest daily maximum 129, Highest daily minimum 64, Lowest daily minimum 71, Heaviest daily rainfall 277, Heaviest daily snowfall 2.

Records on 22 September 1977 by type
Record type	Records
Highest daily maximum	89
Lowest daily maximum	129
Highest daily minimum	64
Lowest daily minimum	71
Heaviest daily rainfall	277
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 22 September 1977 by timescale: all-time 0, monthly 21, daily 611.

How Much Records Were Beaten By

530 broken records

Margins by which the 530 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 64.0. Ties are not counted.

Top 20 by Significance

22 September 1977

Top 20 records on 22 September 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 September 1977	Maraisburg (Gm), ZA	daily rain	36.0 mm (1.4 in)	31.2 mm (1.2 in)	71 years	64 of 100 (Major)
22 September 1977	Klerkskraal (Pol), ZA	daily rain	27.4 mm (1.1 in)	22.8 mm (0.9 in)	71 years	61 of 100 (Major)
22 September 1977	Springview 2NW, US	daily rain	50.8 mm (2.0 in)	27.2 mm (1.1 in)	75 years	56 of 100 (Notable)
22 September 1977	Klipspruit (Pur), ZA	daily rain	29.0 mm (1.1 in)	26.0 mm (1.0 in)	52 years	55 of 100 (Notable)
22 September 1977	Makwassie, ZA	daily rain	38.0 mm (1.5 in)	27.8 mm (1.1 in)	52 years	49 of 100 (Notable)
22 September 1977	Mimosa Park, ZA	daily rain	25.0 mm (1.0 in)	25.0 mm (1.0 in)	56 years	49 of 100 (Notable)
22 September 1977	Germiston-Fj Payne Park, ZA	daily rain	35.5 mm (1.4 in)	27.9 mm (1.1 in)	70 years	48 of 100 (Notable)
22 September 1977	Jhb-Turffontein, ZA	daily rain	30.0 mm (1.2 in)	28.7 mm (1.1 in)	44 years	47 of 100 (Notable)
22 September 1977	Wadena 3 S, US	daily rain	48.0 mm (1.9 in)	33.5 mm (1.3 in)	8 years	46 of 100 (Notable)
22 September 1977	Gaborone, BW	daily rain	27.6 mm (1.1 in)	26.8 mm (1.1 in)	44 years	45 of 100 (Notable)
22 September 1977	Brakpan (Mun), ZA	daily rain	25.0 mm (1.0 in)	25.0 mm (1.0 in)	55 years	45 of 100 (Notable)
22 September 1977	Blue Hill Coop, US	monthly low max	8.9 C (48.0 F)	0.5 C (0.9 F)	83 years	45 of 100 (Notable)
22 September 1977	Lawrence, US	monthly low max	10.0 C (50.0 F)	1.1 C (2.0 F)	83 years	45 of 100 (Notable)
22 September 1977	Forman 5 SSE, US	daily rain	32.8 mm (1.3 in)	13.7 mm (0.5 in)	81 years	45 of 100 (Notable)
22 September 1977	Northway AP, US	monthly rain	28.4 mm (1.1 in)	8.3 mm (0.33 in)	31 years	44 of 100 (Notable)
22 September 1977	Yarima, ZA	daily rain	31.0 mm (1.2 in)	20.8 mm (0.8 in)	52 years	42 of 100 (Notable)
22 September 1977	Bovenlandsplaats, ZA	daily rain	28.5 mm (1.1 in)	28.5 mm (1.1 in)	46 years	42 of 100 (Notable)
22 September 1977	Chestnut Hill, US	monthly low max	10.0 C (50.0 F)	1.7 C (3.1 F)	72 years	42 of 100 (Notable)
22 September 1977	Dwarsfontein, ZA	daily rain	32.5 mm (1.3 in)	19.8 mm (0.8 in)	52 years	41 of 100 (Notable)
22 September 1977	Buffelshoek, ZA	daily rain	32.0 mm (1.3 in)	26.0 mm (1.0 in)	20 years	41 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 632 records.

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

Records on 09-22 in each year
Year	Records
1793	1
1796	1
1824	1
1825	1
1827	1
1830	1
1835	1
1838	1
1840	1
1842	2
1845	1
1846	1
1848	1
1851	3
1855	1
1856	1
1858	1
1863	1
1865	1
1868	1
1872	1
1874	1
1875	1
1877	4
1878	1
1881	2
1882	3
1885	1
1886	1
1888	1
1889	2
1890	2
1892	3
1893	1
1894	1
1895	7
1896	2
1897	3
1898	8
1899	12
1900	3
1901	3
1902	7
1903	4
1904	34
1905	5
1906	16
1907	12
1908	10
1909	6
1910	18
1911	17
1912	17
1913	43
1914	48
1915	23
1916	236
1917	128
1918	25
1919	64
1920	35
1921	44
1922	27
1923	118
1924	132
1925	265
1926	214
1927	160
1928	119
1929	166
1930	231
1931	732
1932	189
1933	230
1934	348
1935	231
1936	448
1937	507
1938	394
1939	266
1940	621
1941	424
1942	323
1943	266
1944	299
1945	739
1946	288
1947	583
1948	345
1949	385
1950	394
1951	419
1952	383
1953	253
1954	359
1955	584
1956	490
1957	580
1958	633
1959	416
1960	360
1961	555
1962	732
1963	351
1964	249
1965	841
1966	595
1967	507
1968	526
1969	488
1970	1,197
1971	500
1972	448
1973	509
1974	1,075
1975	591
1976	538
1977	632
1978	620
1979	991
1980	1,199
1981	754
1982	1,122
1983	2,060
1984	614
1985	820
1986	729
1987	1,300
1988	665
1989	1,155
1990	795
1991	758
1992	1,011
1993	1,448
1994	941
1995	2,498
1996	916
1997	851
1998	1,251
1999	1,172
2000	1,508
2001	604
2002	718
2003	1,472
2004	948
2005	1,155
2006	1,260
2007	896
2008	830
2009	985
2010	1,217
2011	611
2012	568
2013	673
2014	812
2015	666
2016	1,096
2017	1,272
2018	574
2019	651
2020	687
2021	432
2022	985
2023	905
2024	502
2025	387
2026	309

Download the Data

Data for records on 1977-09-22: 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	453
10 to 20	51
20 to 30	22
30 to 40	2
40 to 50	0
50 to 60	0
60 to 70	2