Weather Records on 30 November 1977

935 weather records were set or tied worldwide on 30 November 1977. Highest significance: Joe Rich Creek, CA.

Key Facts for 30 November 1977

On 30 November 1977, 935 weather records were set or tied at long-record stations worldwide.
194 were record highs and 111 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 49 monthly and 884 daily.
Joe Rich Creek set an all-time record daily snowfall of 54.1 cm (21.3 in) on 30 November 1977.
Across 158 earlier years (1797 to 2025) the same calendar date averaged 486 records.

Record Map

935 stations

935 station records on 30 November 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 November 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Joe Rich Creek	Canada	Record daily snowfall	54.1 cm (21.3 in)	72 of 100 (Major)
Hopetown (Tnk)	South Africa	Record daily precipitation	36.0 mm (1.4 in)	72 of 100 (Major)
Uitsig	South Africa	Record daily precipitation	56.0 mm (2.2 in)	67 of 100 (Major)
Oorlogshoek	South Africa	Record daily precipitation	63.0 mm (2.5 in)	65 of 100 (Major)
Venterstad	South Africa	Record daily precipitation	47.5 mm (1.9 in)	64 of 100 (Major)
Prinshof	South Africa	Record daily precipitation	87.0 mm (3.4 in)	62 of 100 (Major)
Niekerkshoop (Pol)	South Africa	Record daily precipitation	39.0 mm (1.5 in)	60 of 100 (Major)
Longville	United States	Record daily precipitation	149.9 mm (5.9 in)	59 of 100 (Notable)
Morokweng (Pol)	South Africa	Record daily precipitation	63.0 mm (2.5 in)	58 of 100 (Notable)
Calvinia	South Africa	Record daily precipitation	33.0 mm (1.3 in)	57 of 100 (Notable)
Carnarvon (Pol)	South Africa	Record daily precipitation	89.0 mm (3.5 in)	57 of 100 (Notable)
Trompsburg (Pol)	South Africa	Record daily precipitation	48.5 mm (1.9 in)	56 of 100 (Notable)
Groblershoop;Boegoeb	South Africa	Record daily precipitation	26.0 mm (1.0 in)	56 of 100 (Notable)
S Bend AP	United States	Record snow depth	30.5 cm (12.0 in)	56 of 100 (Notable)
Joe Rich Creek	Canada	Record daily precipitation	54.1 mm (2.1 in)	55 of 100 (Notable)
Touws River	South Africa	Record daily precipitation	39.5 mm (1.6 in)	55 of 100 (Notable)
Orange	United States	Record daily precipitation	112.0 mm (4.4 in)	54 of 100 (Notable)
Koster (Pol)	South Africa	Record daily precipitation	69.0 mm (2.7 in)	52 of 100 (Notable)
Pelahatchie	United States	Record daily precipitation	89.2 mm (3.5 in)	52 of 100 (Notable)
Hobart (Waterworks Reserve)	Australia	Record daily precipitation	48.2 mm (1.9 in)	51 of 100 (Notable)
Lorraine	South Africa	Record daily precipitation	49.5 mm (1.9 in)	51 of 100 (Notable)
De Aar	South Africa	Record daily precipitation	39.3 mm (1.5 in)	51 of 100 (Notable)
Ellesmere	South Africa	Record daily precipitation	54.5 mm (2.1 in)	51 of 100 (Notable)
Welgedacht	South Africa	Record daily precipitation	50.0 mm (2.0 in)	51 of 100 (Notable)
Sugartown	United States	Record daily precipitation	81.3 mm (3.2 in)	51 of 100 (Notable)
Jacksonville NAS	United States	Record daily precipitation	45.7 mm (1.8 in)	51 of 100 (Notable)
Estrada de Cunha	Brazil	Record daily precipitation	76.0 mm (3.0 in)	50 of 100 (Notable)
Redelinghuis (Pol)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	50 of 100 (Notable)
Grootmodderfontein	South Africa	Record daily precipitation	100.0 mm (3.9 in)	49 of 100 (Notable)
Palmyra	South Africa	Record daily precipitation	44.0 mm (1.7 in)	49 of 100 (Notable)
Springs (Rwb)	South Africa	Record daily precipitation	55.0 mm (2.2 in)	48 of 100 (Notable)
Woodville 4 ESE	United States	Record daily precipitation	131.8 mm (5.2 in)	48 of 100 (Notable)
Poortjie-Wes	South Africa	Record daily precipitation	25.0 mm (1.0 in)	47 of 100 (Notable)
Reitfontein	South Africa	Record daily precipitation	58.0 mm (2.3 in)	47 of 100 (Notable)
Kalabasput	South Africa	Record daily precipitation	42.0 mm (1.7 in)	47 of 100 (Notable)
Titusville	United States	Record daily precipitation	74.4 mm (2.9 in)	47 of 100 (Notable)
Canton 4N	United States	Record daily precipitation	100.1 mm (3.9 in)	47 of 100 (Notable)
New Iberia AP - Acadiana Rgnl	United States	Record daily precipitation	65.0 mm (2.6 in)	46 of 100 (Notable)
Simmesport	United States	Record daily precipitation	124.5 mm (4.9 in)	46 of 100 (Notable)
Rokeby (the Mall)	Australia	Record daily precipitation	50.0 mm (2.0 in)	45 of 100 (Notable)
Bethesdaweg (Sar)	South Africa	Record daily precipitation	25.5 mm (1.0 in)	45 of 100 (Notable)
Soutwater	South Africa	Record daily precipitation	48.0 mm (1.9 in)	45 of 100 (Notable)
Britstown (Pol)	South Africa	Record daily precipitation	47.5 mm (1.9 in)	45 of 100 (Notable)
Danger Point - Vrt.	South Africa	Record daily precipitation	36.0 mm (1.4 in)	44 of 100 (Notable)
Clifton Vale	South Africa	Record daily precipitation	65.0 mm (2.6 in)	44 of 100 (Notable)
Rooisloot	South Africa	Record daily precipitation	39.0 mm (1.5 in)	44 of 100 (Notable)
Grobelershoop (Pol)	South Africa	Record daily precipitation	55.0 mm (2.2 in)	44 of 100 (Notable)
Groot Rietvlei	South Africa	Record daily precipitation	63.0 mm (2.5 in)	44 of 100 (Notable)
Murraysburg (Pol)	South Africa	Record daily precipitation	27.0 mm (1.1 in)	43 of 100 (Notable)
Sandpan	South Africa	Record daily precipitation	46.5 mm (1.8 in)	43 of 100 (Notable)
Tweefontein	South Africa	Record daily precipitation	37.0 mm (1.5 in)	43 of 100 (Notable)
Strydenberg (Pol)	South Africa	Record daily precipitation	38.0 mm (1.5 in)	43 of 100 (Notable)
Ofahoma	United States	Record daily precipitation	71.1 mm (2.8 in)	43 of 100 (Notable)
Beaumont City	United States	Record daily precipitation	118.1 mm (4.6 in)	43 of 100 (Notable)
Vondeling(Sar)"T...Kraal"	South Africa	Record daily precipitation	28.0 mm (1.1 in)	42 of 100 (Notable)
Cookhouse (Sar)	South Africa	Record daily precipitation	30.5 mm (1.2 in)	42 of 100 (Notable)
Bo-Downes	South Africa	Record daily precipitation	35.0 mm (1.4 in)	42 of 100 (Notable)
Lekkervlei	South Africa	Record daily precipitation	31.2 mm (1.2 in)	42 of 100 (Notable)
Esperanza	South Africa	Record daily precipitation	40.0 mm (1.6 in)	42 of 100 (Notable)
Lillydale	South Africa	Record daily precipitation	30.0 mm (1.2 in)	42 of 100 (Notable)

Counts by Type and Timescale

935 records

Records set or tied on 30 November 1977 by type: Highest daily maximum 62, Lowest daily maximum 57, Highest daily minimum 132, Lowest daily minimum 54, Heaviest daily rainfall 577, Heaviest daily snowfall 30, Deepest snow cover 23.

Records on 30 November 1977 by type
Record type	Records
Highest daily maximum	62
Lowest daily maximum	57
Highest daily minimum	132
Lowest daily minimum	54
Heaviest daily rainfall	577
Heaviest daily snowfall	30
Deepest snow cover	23

Records on 30 November 1977 by timescale: all-time 2, monthly 49, daily 884.

How Much Records Were Beaten By

837 broken records

Margins by which the 837 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 177.0. Ties are not counted.

Top 20 by Significance

30 November 1977

Top 20 records on 30 November 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 November 1977	Joe Rich Creek, CA	all-time snowfall	54.1 cm (21.3 in)	14.7 cm (5.8 in)	40 years	72 of 100 (Major)
30 November 1977	Hopetown (Tnk), ZA	daily rain	36.0 mm (1.4 in)	28.1 mm (1.1 in)	93 years	72 of 100 (Major)
30 November 1977	Uitsig, ZA	monthly rain	56.0 mm (2.2 in)	28.6 mm (1.1 in)	43 years	67 of 100 (Major)
30 November 1977	Oorlogshoek, ZA	daily rain	63.0 mm (2.5 in)	63.0 mm (2.5 in)	64 years	65 of 100 (Major)
30 November 1977	Venterstad, ZA	daily rain	47.5 mm (1.9 in)	26.9 mm (1.1 in)	87 years	64 of 100 (Major)
30 November 1977	Prinshof, ZA	monthly rain	87.0 mm (3.4 in)	46.9 mm (1.8 in)	27 years	62 of 100 (Major)
30 November 1977	Niekerkshoop (Pol), ZA	daily rain	39.0 mm (1.5 in)	36.2 mm (1.4 in)	60 years	60 of 100 (Major)
30 November 1977	Longville, US	monthly rain	149.9 mm (5.9 in)	71.2 mm (2.8 in)	20 years	59 of 100 (Notable)
30 November 1977	Morokweng (Pol), ZA	daily rain	63.0 mm (2.5 in)	43.9 mm (1.7 in)	34 years	58 of 100 (Notable)
30 November 1977	Calvinia, ZA	daily rain	33.0 mm (1.3 in)	32.0 mm (1.3 in)	34 years	57 of 100 (Notable)
30 November 1977	Carnarvon (Pol), ZA	monthly rain	89.0 mm (3.5 in)	35.4 mm (1.4 in)	24 years	57 of 100 (Notable)
30 November 1977	Trompsburg (Pol), ZA	daily rain	48.5 mm (1.9 in)	38.3 mm (1.5 in)	39 years	56 of 100 (Notable)
30 November 1977	Groblershoop;Boegoeb, ZA	daily rain	26.0 mm (1.0 in)	26.0 mm (1.0 in)	40 years	56 of 100 (Notable)
30 November 1977	S Bend AP, US	daily snow depth	30.5 cm (12.0 in)	15.3 cm (6.0 in)	74 years	56 of 100 (Notable)
30 November 1977	Joe Rich Creek, CA	monthly rain	54.1 mm (2.1 in)	18.5 mm (0.7 in)	2 years	55 of 100 (Notable)
30 November 1977	Touws River, ZA	daily rain	39.5 mm (1.6 in)	35.7 mm (1.4 in)	22 years	55 of 100 (Notable)
30 November 1977	Orange, US	daily rain	112.0 mm (4.4 in)	84.6 mm (3.3 in)	24 years	54 of 100 (Notable)
30 November 1977	Koster (Pol), ZA	daily rain	69.0 mm (2.7 in)	34.5 mm (1.4 in)	60 years	52 of 100 (Notable)
30 November 1977	Pelahatchie, US	daily rain	89.2 mm (3.5 in)	67.1 mm (2.6 in)	40 years	52 of 100 (Notable)
30 November 1977	Hobart (Waterworks Reserve), AU	daily rain	48.2 mm (1.9 in)	24.1 mm (0.9 in)	43 years	51 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

1797 to 1977

Records set or tied on this calendar date in each year from 1797 to 1977. 1977 had 935 records.

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

Records on 11-30 in each year
Year	Records
1797	1
1799	2
1807	2
1815	2
1817	1
1821	1
1827	2
1836	1
1840	1
1846	1
1849	2
1866	1
1867	1
1871	2
1875	7
1876	2
1879	2
1881	1
1885	7
1886	1
1887	2
1888	1
1889	3
1890	2
1891	2
1892	2
1893	3
1894	1
1895	7
1896	5
1897	5
1898	1
1899	7
1900	4
1901	8
1902	7
1903	22
1904	6
1905	16
1906	21
1907	6
1908	51
1909	20
1910	22
1911	22
1912	19
1913	54
1914	68
1915	37
1916	64
1917	26
1918	32
1919	87
1920	138
1921	42
1922	46
1923	144
1924	95
1925	102
1926	84
1927	600
1928	187
1929	883
1930	185
1931	375
1932	372
1933	1,006
1934	1,282
1935	84
1936	186
1937	375
1938	165
1939	321
1940	330
1941	298
1942	218
1943	238
1944	422
1945	147
1946	343
1947	544
1948	332
1949	323
1950	382
1951	348
1952	829
1953	307
1954	470
1955	576
1956	304
1957	226
1958	676
1959	339
1960	219
1961	412
1962	802
1963	566
1964	1,042
1965	309
1966	730
1967	802
1968	516
1969	625
1970	995
1971	501
1972	414
1973	635
1974	912
1975	2,018
1976	1,789
1977	935
1978	761
1979	837
1980	697
1981	1,361
1982	1,142
1983	1,137
1984	571
1985	2,887
1986	798
1987	913
1988	686
1989	781
1990	483
1991	2,104
1992	676
1993	756
1994	762
1995	1,472
1996	1,054
1997	987
1998	2,289
1999	1,170
2000	962
2001	1,431
2002	862
2003	634
2004	1,344
2005	883
2006	2,656
2007	739
2008	855
2009	951
2010	1,915
2011	1,108
2012	1,059
2013	505
2014	822
2015	880
2016	634
2017	307
2018	493
2019	1,060
2020	323
2021	1,049
2022	559
2023	583
2024	672
2025	858

Download the Data

Data for records on 1977-11-30: 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 25	711
25 to 50	98
50 to 75	22
75 to 100	2
100 to 125	1
125 to 150	1
150 to 175	1
175 to 200	1