Weather Records on 28 September 1977

784 weather records were set or tied worldwide on 28 September 1977. Highest significance: Grants Pass, US.

Key Facts for 28 September 1977

On 28 September 1977, 784 weather records were set or tied at long-record stations worldwide.
355 were record highs and 208 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 53 monthly and 728 daily.
Grants Pass set a monthly record daily precipitation of 72.6 mm (2.9 in) on 28 September 1977.
Across 162 earlier years (1794 to 2026) the same calendar date averaged 426 records.

Record Map

784 stations

784 station records on 28 September 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 September 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Grants Pass	United States	Record daily precipitation	72.6 mm (2.9 in)	75 of 100 (Major)
Ashland	United States	Record daily precipitation	53.3 mm (2.1 in)	67 of 100 (Major)
Medford Intl AP	United States	Record daily precipitation	71.1 mm (2.8 in)	62 of 100 (Major)
Prospect 2 SW	United States	Record daily precipitation	60.5 mm (2.4 in)	59 of 100 (Notable)
Jaicos	Brazil	Record daily precipitation	54.6 mm (2.1 in)	56 of 100 (Notable)
Ft Bragg 5 N	United States	Record daily precipitation	38.4 mm (1.5 in)	55 of 100 (Notable)
Formosa Do Rio Preto (Pcd)	Brazil	Record daily precipitation	49.9 mm (2.0 in)	53 of 100 (Notable)
Crescent City 3 NNW	United States	Record daily precipitation	84.3 mm (3.3 in)	52 of 100 (Notable)
Itapicuru	Brazil	Record daily precipitation	38.2 mm (1.5 in)	51 of 100 (Notable)
Leuctra	South Africa	Record daily precipitation	38.0 mm (1.5 in)	50 of 100 (Notable)
Rooiberg	South Africa	Record daily precipitation	28.5 mm (1.1 in)	49 of 100 (Notable)
Williams 1 NW	United States	Record daily precipitation	45.7 mm (1.8 in)	49 of 100 (Notable)
Powers	United States	Record daily precipitation	47.5 mm (1.9 in)	48 of 100 (Notable)
Tambe (Itambe)	Brazil	Record daily precipitation	26.0 mm (1.0 in)	46 of 100 (Notable)
Leeupoort	South Africa	Record daily precipitation	49.0 mm (1.9 in)	46 of 100 (Notable)
Crater Lake Nps HQ	United States	Record daily precipitation	45.7 mm (1.8 in)	46 of 100 (Notable)
Santa Rita de Cassia	Brazil	Record daily precipitation	56.2 mm (2.2 in)	45 of 100 (Notable)
Barra Do Gil (I.de Itaparica)	Brazil	Record daily precipitation	59.1 mm (2.3 in)	41 of 100 (Notable)
Happy Camp Rs	United States	Record daily precipitation	73.7 mm (2.9 in)	40 of 100 (Notable)
Medford Exp STN	United States	Record daily precipitation	93.0 mm (3.7 in)	40 of 100 (Notable)
Barra Do Mendes	Brazil	Record daily precipitation	61.5 mm (2.4 in)	39 of 100 (Notable)
Kisinev	Moldova	Record low maximum temperature	7.0 C (44.6 F)	39 of 100 (Notable)
Nikolaev	Ukraine	Record low minimum temperature	-1.4 C (29.5 F)	39 of 100 (Notable)
San Saba	United States	Record high maximum temperature	39.4 C (102.9 F)	38 of 100 (Notable)
Gorlitz	Germany	Record low minimum temperature	0.2 C (32.4 F)	37 of 100 (Notable)
Vladikavkaz	Russia	Record low maximum temperature	6.0 C (42.8 F)	37 of 100 (Notable)
Butte Falls 1 SE	United States	Record daily precipitation	46.7 mm (1.8 in)	37 of 100 (Notable)
Jhb-Norwood	South Africa	Record daily precipitation	59.0 mm (2.3 in)	36 of 100 (Notable)
Orick Prairie Creek Park	United States	Record daily precipitation	82.0 mm (3.2 in)	36 of 100 (Notable)
Burlington	United States	Record high minimum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Lamar	United States	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Black Springs Forestry	Australia	Record daily precipitation	37.0 mm (1.5 in)	35 of 100 (Notable)
Bankstown (Condell Park)	Australia	Record daily precipitation	42.6 mm (1.7 in)	35 of 100 (Notable)
Araci	Brazil	Record daily precipitation	27.2 mm (1.1 in)	35 of 100 (Notable)
Syferfontein	South Africa	Record daily precipitation	66.0 mm (2.6 in)	34 of 100 (Routine)
Heilbron (Tnk)	South Africa	Record daily precipitation	47.0 mm (1.9 in)	34 of 100 (Routine)
Mamakuil	South Africa	Record daily precipitation	40.0 mm (1.6 in)	34 of 100 (Routine)
Gainesville	United States	Record high minimum temperature	24.4 C (75.9 F)	34 of 100 (Routine)
Schelm	South Africa	Record daily precipitation	54.0 mm (2.1 in)	33 of 100 (Routine)
Mesa	United States	Record low maximum temperature	25.0 C (77.0 F)	33 of 100 (Routine)
Balfour (Mag)	South Africa	Record daily precipitation	50.0 mm (2.0 in)	32 of 100 (Routine)
Biloxi	United States	Record high minimum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Elk City 4 W	United States	Record high minimum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
The Dalles	United States	Record low maximum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Spokane Intl AP	United States	Record low maximum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Bjelasnica	Bosnia and Herzegovina	Record low maximum temperature	-2.2 C (28.0 F)	31 of 100 (Routine)
Childs	United States	Record low maximum temperature	21.1 C (70.0 F)	31 of 100 (Routine)
Castle Rock	United States	Record high minimum temperature	8.9 C (48.0 F)	31 of 100 (Routine)
Johnson 11 ESE	United States	Record high minimum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Drain	United States	Record low maximum temperature	15.0 C (59.0 F)	31 of 100 (Routine)
Georgetown	United States	Record high maximum temperature	37.2 C (99.0 F)	31 of 100 (Routine)
Memphis	United States	Record high minimum temperature	22.2 C (72.0 F)	31 of 100 (Routine)
Tahoka	United States	Record high maximum temperature	38.9 C (102.0 F)	31 of 100 (Routine)
Bexley Bowling Club	Australia	Record daily precipitation	41.0 mm (1.6 in)	30 of 100 (Routine)
Prospect Reservoir	Australia	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Buzau	Romania	Record low maximum temperature	10.8 C (51.4 F)	30 of 100 (Routine)
Calarasi	Romania	Record low minimum temperature	-0.5 C (31.1 F)	30 of 100 (Routine)
Tomsk	Russia	Record low minimum temperature	-5.8 C (21.6 F)	30 of 100 (Routine)
Bogoroditskoye-Fenino	Russia	Record low maximum temperature	3.0 C (37.4 F)	30 of 100 (Routine)
Nikolaev	Ukraine	Record low maximum temperature	8.0 C (46.4 F)	30 of 100 (Routine)

Counts by Type and Timescale

784 records

Records set or tied on 28 September 1977 by type: Highest daily maximum 113, Lowest daily maximum 126, Highest daily minimum 242, Lowest daily minimum 82, Heaviest daily rainfall 219, Heaviest daily snowfall 2.

Records on 28 September 1977 by type
Record type	Records
Highest daily maximum	113
Lowest daily maximum	126
Highest daily minimum	242
Lowest daily minimum	82
Heaviest daily rainfall	219
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 28 September 1977 by timescale: all-time 3, monthly 53, daily 728.

How Much Records Were Beaten By

612 broken records

Margins by which the 612 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 55.1. Ties are not counted.

Top 20 by Significance

28 September 1977

Top 20 records on 28 September 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 September 1977	Grants Pass, US	monthly rain	72.6 mm (2.9 in)	20.5 mm (0.8 in)	82 years	75 of 100 (Major)
28 September 1977	Ashland, US	daily rain	53.3 mm (2.1 in)	32.5 mm (1.3 in)	64 years	67 of 100 (Major)
28 September 1977	Medford Intl AP, US	monthly rain	71.1 mm (2.8 in)	37.6 mm (1.5 in)	24 years	62 of 100 (Major)
28 September 1977	Prospect 2 SW, US	monthly rain	60.5 mm (2.4 in)	17.1 mm (0.7 in)	63 years	59 of 100 (Notable)
28 September 1977	Jaicos, BR	monthly rain	54.6 mm (2.1 in)	24.1 mm (0.9 in)	56 years	56 of 100 (Notable)
28 September 1977	Ft Bragg 5 N, US	daily rain	38.4 mm (1.5 in)	23.2 mm (0.9 in)	68 years	55 of 100 (Notable)
28 September 1977	Formosa Do Rio Preto (Pcd), BR	daily rain	49.9 mm (2.0 in)	45.2 mm (1.8 in)	35 years	53 of 100 (Notable)
28 September 1977	Crescent City 3 NNW, US	daily rain	84.3 mm (3.3 in)	55.1 mm (2.2 in)	15 years	52 of 100 (Notable)
28 September 1977	Itapicuru, BR	daily rain	38.2 mm (1.5 in)	30.2 mm (1.2 in)	32 years	51 of 100 (Notable)
28 September 1977	Leuctra, ZA	daily rain	38.0 mm (1.5 in)	30.4 mm (1.2 in)	36 years	50 of 100 (Notable)
28 September 1977	Rooiberg, ZA	daily rain	28.5 mm (1.1 in)	21.6 mm (0.9 in)	36 years	49 of 100 (Notable)
28 September 1977	Williams 1 NW, US	monthly rain	45.7 mm (1.8 in)	5.3 mm (0.21 in)	82 years	49 of 100 (Notable)
28 September 1977	Powers, US	daily rain	47.5 mm (1.9 in)	32.0 mm (1.3 in)	15 years	48 of 100 (Notable)
28 September 1977	Tambe (Itambe), BR	daily rain	26.0 mm (1.0 in)	16.4 mm (0.6 in)	63 years	46 of 100 (Notable)
28 September 1977	Leeupoort, ZA	daily rain	49.0 mm (1.9 in)	31.5 mm (1.2 in)	0 years	46 of 100 (Notable)
28 September 1977	Crater Lake Nps HQ, US	daily rain	45.7 mm (1.8 in)	30.0 mm (1.2 in)	36 years	46 of 100 (Notable)
28 September 1977	Santa Rita de Cassia, BR	daily rain	56.2 mm (2.2 in)	51.6 mm (2.0 in)	0 years	45 of 100 (Notable)
28 September 1977	Barra Do Gil (I.de Itaparica), BR	daily rain	59.1 mm (2.3 in)	30.7 mm (1.2 in)	8 years	41 of 100 (Notable)
28 September 1977	Happy Camp Rs, US	monthly rain	73.7 mm (2.9 in)	16.3 mm (0.6 in)	20 years	40 of 100 (Notable)
28 September 1977	Medford Exp STN, US	all-time rain	93.0 mm (3.7 in)	8.4 mm (0.33 in)	14 years	40 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

1794 to 1977

Records set or tied on this calendar date in each year from 1794 to 1977. 1977 had 784 records.

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

Records on 09-28 in each year
Year	Records
1794	1
1826	1
1832	1
1849	2
1851	1
1854	2
1855	2
1859	1
1862	1
1864	1
1866	1
1867	3
1868	1
1869	2
1873	3
1874	3
1877	3
1878	1
1879	1
1880	2
1881	3
1883	2
1884	1
1885	4
1887	1
1888	1
1890	4
1891	2
1892	3
1893	1
1894	6
1895	5
1896	3
1897	5
1898	4
1899	6
1900	9
1901	2
1902	5
1903	19
1904	17
1905	17
1906	37
1907	27
1908	23
1909	16
1910	39
1911	62
1912	32
1913	37
1914	28
1915	57
1916	61
1917	35
1918	55
1919	38
1920	23
1921	39
1922	34
1923	150
1924	139
1925	191
1926	305
1927	194
1928	205
1929	432
1930	116
1931	233
1932	195
1933	459
1934	237
1935	282
1936	502
1937	313
1938	311
1939	552
1940	419
1941	479
1942	1,187
1943	440
1944	367
1945	1,034
1946	347
1947	647
1948	617
1949	359
1950	233
1951	441
1952	366
1953	842
1954	512
1955	409
1956	590
1957	695
1958	509
1959	874
1960	226
1961	385
1962	705
1963	666
1964	723
1965	582
1966	477
1967	978
1968	262
1969	244
1970	932
1971	954
1972	671
1973	886
1974	583
1975	502
1976	900
1977	784
1978	513
1979	915
1980	750
1981	752
1982	1,001
1983	941
1984	1,326
1985	1,189
1986	1,264
1987	825
1988	623
1989	847
1990	414
1991	821
1992	643
1993	627
1994	836
1995	794
1996	1,069
1997	681
1998	1,541
1999	1,533
2000	652
2001	791
2002	743
2003	929
2004	852
2005	1,088
2006	704
2007	837
2008	536
2009	792
2010	1,139
2011	1,025
2012	624
2013	790
2014	878
2015	673
2016	520
2017	755
2018	527
2019	1,388
2020	531
2021	740
2022	727
2023	772
2024	1,364
2025	464
2026	531

Download the Data

Data for records on 1977-09-28: 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).

Histogram of margins by which records were beaten on 28 September 1977
Margin	Records
0 to 10	542
10 to 20	45
20 to 30	11
30 to 40	11
40 to 50	1
50 to 60	2