Weather Records on 29 December 1977

656 weather records were set or tied worldwide on 29 December 1977. Highest significance: Port Hastings, CA.

Key Facts for 29 December 1977

On 29 December 1977, 656 weather records were set or tied at long-record stations worldwide.
183 were record highs and 177 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 19 monthly and 637 daily.
Port Hastings set a daily record snowfall of 50.8 cm (20.0 in) on 29 December 1977.
Across 161 earlier years (1799 to 2025) the same calendar date averaged 481 records.

Record Map

656 stations

656 station records on 29 December 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 29 December 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Hastings	Canada	Record daily snowfall	50.8 cm (20.0 in)	77 of 100 (Major)
Cape Agulhas	South Africa	Record daily precipitation	49.0 mm (1.9 in)	62 of 100 (Major)
East London -Signal STN	South Africa	Record daily precipitation	67.5 mm (2.7 in)	60 of 100 (Major)
Mnt Fletcher (Tnk)	South Africa	Record daily precipitation	57.0 mm (2.2 in)	58 of 100 (Notable)
Intake	South Africa	Record daily precipitation	199.0 mm (7.8 in)	58 of 100 (Notable)
Spitshoek	South Africa	Record daily precipitation	44.0 mm (1.7 in)	56 of 100 (Notable)
Tanhurst Est, Umzint	South Africa	Record daily precipitation	118.5 mm (4.7 in)	56 of 100 (Notable)
Lake King	Australia	Record daily precipitation	25.0 mm (1.0 in)	51 of 100 (Notable)
Bushy Vales, Margate	South Africa	Record daily precipitation	80.3 mm (3.2 in)	51 of 100 (Notable)
The Valleys	South Africa	Record daily precipitation	102.5 mm (4.0 in)	51 of 100 (Notable)
Port Shepstone	South Africa	Record daily precipitation	86.5 mm (3.4 in)	51 of 100 (Notable)
Nis	Serbia	Record daily precipitation	28.9 mm (1.1 in)	50 of 100 (Notable)
Inchanga (Sar)	South Africa	Record daily precipitation	51.8 mm (2.0 in)	48 of 100 (Notable)
Bowman	United States	Record snow depth	58.4 cm (23.0 in)	48 of 100 (Notable)
Mount Madden	Australia	Record daily precipitation	25.0 mm (1.0 in)	47 of 100 (Notable)
Ntywenka (Bos)	South Africa	Record daily precipitation	90.0 mm (3.5 in)	47 of 100 (Notable)
Camperdown	South Africa	Record daily precipitation	50.5 mm (2.0 in)	47 of 100 (Notable)
Umlaas Waterworks	South Africa	Record daily precipitation	68.5 mm (2.7 in)	47 of 100 (Notable)
Little Harmony, Rich	South Africa	Record daily precipitation	54.6 mm (2.1 in)	46 of 100 (Notable)
Loxton (Pol)	South Africa	Record daily precipitation	61.7 mm (2.4 in)	45 of 100 (Notable)
Brynawe, Paddock	South Africa	Record daily precipitation	106.5 mm (4.2 in)	44 of 100 (Notable)
New Orleans Audubon	United States	Record daily precipitation	67.3 mm (2.6 in)	43 of 100 (Notable)
Ghanzi	Botswana	Record daily precipitation	55.3 mm (2.2 in)	41 of 100 (Notable)
Dunkirk 19NNE	United States	Record daily snowfall	15.2 cm (6.0 in)	41 of 100 (Notable)
Midale	Canada	Record daily snowfall	12.7 cm (5.0 in)	40 of 100 (Notable)
Umzonia (Rsv)	South Africa	Record daily precipitation	62.2 mm (2.4 in)	40 of 100 (Notable)
Fort Macleod	Canada	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Kei Road (Pol)	South Africa	Record daily precipitation	44.0 mm (1.7 in)	39 of 100 (Notable)
Eureka	South Africa	Record daily precipitation	45.0 mm (1.8 in)	39 of 100 (Notable)
Mandan Exp STN	United States	Record snow depth	45.7 cm (18.0 in)	39 of 100 (Notable)
Silverdales	South Africa	Record daily precipitation	51.3 mm (2.0 in)	38 of 100 (Notable)
Lethbridge Cda	Canada	Record daily snowfall	11.7 cm (4.6 in)	36 of 100 (Notable)
Taber	Canada	Record daily snowfall	10.2 cm (4.0 in)	36 of 100 (Notable)
Delano	United States	Record daily precipitation	33.5 mm (1.3 in)	36 of 100 (Notable)
Klipdrift	South Africa	Record daily precipitation	45.0 mm (1.8 in)	35 of 100 (Notable)
Winkelman 6 S	United States	Record high minimum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Waynesboro 2 S	United States	Record low minimum temperature	-10.0 C (14.0 F)	35 of 100 (Notable)
Eureka	United States	Record snow depth	43.2 cm (17.0 in)	35 of 100 (Notable)
Escondido	United States	Record high minimum temperature	14.4 C (57.9 F)	34 of 100 (Routine)
St Andrews	Canada	Record daily precipitation	79.2 mm (3.1 in)	33 of 100 (Routine)
Cuautla (Smn)	Mexico	Record high minimum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
Die Hoogte	South Africa	Record daily precipitation	63.5 mm (2.5 in)	33 of 100 (Routine)
Sterkstroom (Pol)	South Africa	Record daily precipitation	38.0 mm (1.5 in)	33 of 100 (Routine)
Pomona/Fairplex	United States	Record high minimum temperature	12.2 C (54.0 F)	33 of 100 (Routine)
Hopewell	South Africa	Record daily precipitation	51.5 mm (2.0 in)	32 of 100 (Routine)
Wamakersvlei	South Africa	Record daily precipitation	38.0 mm (1.5 in)	32 of 100 (Routine)
Roosevelt 1 S	United States	Record high minimum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Hawkinsville	United States	Record low minimum temperature	-8.9 C (16.0 F)	32 of 100 (Routine)
Shelby 2 NW	United States	Record low minimum temperature	-11.1 C (12.0 F)	32 of 100 (Routine)
Lake Carmody	Australia	Record daily precipitation	41.2 mm (1.6 in)	31 of 100 (Routine)
Esplanada	Brazil	Record daily precipitation	100.1 mm (3.9 in)	31 of 100 (Routine)
Moctezuma	Mexico	Record high minimum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Ceylon (Bos)	South Africa	Record daily precipitation	81.8 mm (3.2 in)	31 of 100 (Routine)
New Orleans D P S 3	United States	Record daily precipitation	76.7 mm (3.0 in)	31 of 100 (Routine)
Warrenton 3 SE	United States	Record low maximum temperature	-3.3 C (26.1 F)	31 of 100 (Routine)
Hatton 9 SE	United States	Record daily snowfall	13.5 cm (5.3 in)	31 of 100 (Routine)
Paramirim	Brazil	Record daily precipitation	54.4 mm (2.1 in)	30 of 100 (Routine)
Cardston	Canada	Record daily snowfall	21.5 cm (8.5 in)	30 of 100 (Routine)
Eston	South Africa	Record daily precipitation	34.0 mm (1.3 in)	30 of 100 (Routine)
Porterville	United States	Record high maximum temperature	21.7 C (71.1 F)	30 of 100 (Routine)

Counts by Type and Timescale

656 records

Records set or tied on 29 December 1977 by type: Highest daily maximum 38, Lowest daily maximum 58, Highest daily minimum 145, Lowest daily minimum 119, Heaviest daily rainfall 238, Heaviest daily snowfall 41, Deepest snow cover 17.

Records on 29 December 1977 by type
Record type	Records
Highest daily maximum	38
Lowest daily maximum	58
Highest daily minimum	145
Lowest daily minimum	119
Heaviest daily rainfall	238
Heaviest daily snowfall	41
Deepest snow cover	17

Records on 29 December 1977 by timescale: all-time 0, monthly 19, daily 637.

How Much Records Were Beaten By

529 broken records

Margins by which the 529 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 406.0. Ties are not counted.

Top 20 by Significance

29 December 1977

Top 20 records on 29 December 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 December 1977	Port Hastings, CA	daily snowfall	50.8 cm (20.0 in)	40.6 cm (16.0 in)	90 years	77 of 100 (Major)
29 December 1977	Cape Agulhas, ZA	daily rain	49.0 mm (1.9 in)	41.0 mm (1.6 in)	48 years	62 of 100 (Major)
29 December 1977	East London -Signal STN, ZA	daily rain	67.5 mm (2.7 in)	42.6 mm (1.7 in)	56 years	60 of 100 (Major)
29 December 1977	Mnt Fletcher (Tnk), ZA	daily rain	57.0 mm (2.2 in)	26.5 mm (1.0 in)	77 years	58 of 100 (Notable)
29 December 1977	Intake, ZA	monthly rain	199.0 mm (7.8 in)	74.0 mm (2.9 in)	13 years	58 of 100 (Notable)
29 December 1977	Spitshoek, ZA	daily rain	44.0 mm (1.7 in)	44.0 mm (1.7 in)	40 years	56 of 100 (Notable)
29 December 1977	Tanhurst Est, Umzint, ZA	daily rain	118.5 mm (4.7 in)	53.0 mm (2.1 in)	47 years	56 of 100 (Notable)
29 December 1977	Lake King, AU	daily rain	25.0 mm (1.0 in)	21.4 mm (0.8 in)	46 years	51 of 100 (Notable)
29 December 1977	Bushy Vales, Margate, ZA	daily rain	80.3 mm (3.2 in)	45.5 mm (1.8 in)	66 years	51 of 100 (Notable)
29 December 1977	The Valleys, ZA	daily rain	102.5 mm (4.0 in)	79.5 mm (3.1 in)	24 years	51 of 100 (Notable)
29 December 1977	Port Shepstone, ZA	daily rain	86.5 mm (3.4 in)	62.4 mm (2.5 in)	47 years	51 of 100 (Notable)
29 December 1977	Nis, RS	daily rain	28.9 mm (1.1 in)	21.3 mm (0.8 in)	26 years	50 of 100 (Notable)
29 December 1977	Inchanga (Sar), ZA	daily rain	51.8 mm (2.0 in)	32.5 mm (1.3 in)	43 years	48 of 100 (Notable)
29 December 1977	Bowman, US	daily snow depth	58.4 cm (23.0 in)	33.0 cm (13.0 in)	8 years	48 of 100 (Notable)
29 December 1977	Mount Madden, AU	daily rain	25.0 mm (1.0 in)	18.1 mm (0.7 in)	10 years	47 of 100 (Notable)
29 December 1977	Ntywenka (Bos), ZA	daily rain	90.0 mm (3.5 in)	31.6 mm (1.2 in)	47 years	47 of 100 (Notable)
29 December 1977	Camperdown, ZA	daily rain	50.5 mm (2.0 in)	28.9 mm (1.1 in)	36 years	47 of 100 (Notable)
29 December 1977	Umlaas Waterworks, ZA	daily rain	68.5 mm (2.7 in)	35.7 mm (1.4 in)	47 years	47 of 100 (Notable)
29 December 1977	Little Harmony, Rich, ZA	daily rain	54.6 mm (2.1 in)	32.8 mm (1.3 in)	36 years	46 of 100 (Notable)
29 December 1977	Loxton (Pol), ZA	monthly rain	61.7 mm (2.4 in)	18.3 mm (0.7 in)	36 years	45 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

1799 to 1977

Records set or tied on this calendar date in each year from 1799 to 1977. 1977 had 656 records.

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

Records on 12-29 in each year
Year	Records
1799	1
1810	1
1824	1
1829	1
1839	2
1853	2
1864	1
1865	1
1866	1
1867	1
1868	2
1870	1
1871	1
1872	2
1873	1
1874	2
1876	2
1877	2
1878	1
1880	6
1881	4
1882	2
1884	1
1885	1
1886	1
1887	3
1889	2
1890	7
1891	3
1893	2
1894	3
1895	1
1896	1
1897	8
1898	7
1899	4
1900	1
1901	18
1902	8
1903	10
1904	16
1905	19
1906	14
1907	10
1908	21
1909	18
1910	7
1911	6
1912	52
1913	12
1914	46
1915	47
1916	69
1917	145
1918	33
1919	157
1920	68
1921	60
1922	42
1923	126
1924	119
1925	209
1926	117
1927	350
1928	93
1929	262
1930	96
1931	363
1932	192
1933	479
1934	406
1935	392
1936	552
1937	280
1938	178
1939	272
1940	648
1941	110
1942	458
1943	232
1944	226
1945	497
1946	1,122
1947	310
1948	711
1949	217
1950	286
1951	571
1952	156
1953	205
1954	955
1955	373
1956	563
1957	527
1958	442
1959	251
1960	404
1961	525
1962	754
1963	285
1964	533
1965	634
1966	719
1967	867
1968	1,028
1969	964
1970	694
1971	660
1972	1,001
1973	674
1974	719
1975	646
1976	748
1977	656
1978	1,349
1979	830
1980	959
1981	713
1982	1,565
1983	2,576
1984	2,687
1985	551
1986	752
1987	1,484
1988	1,082
1989	633
1990	1,861
1991	630
1992	1,099
1993	905
1994	965
1995	1,202
1996	2,213
1997	1,114
1998	783
1999	1,207
2000	1,677
2001	599
2002	959
2003	951
2004	909
2005	858
2006	1,219
2007	1,046
2008	753
2009	1,027
2010	1,308
2011	748
2012	805
2013	714
2014	506
2015	1,440
2016	620
2017	1,559
2018	440
2019	1,471
2020	504
2021	1,098
2022	516
2023	900
2024	931
2025	637

Download the Data

Data for records on 1977-12-29: 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 100	521
100 to 200	4
200 to 300	2
300 to 400	1
400 to 500	1