Weather Records on 30 December 1978

1,930 weather records were set or tied worldwide on 30 December 1978. Highest significance: Philadelphia Polisie, ZA.

Key Facts for 30 December 1978

On 30 December 1978, 1,930 weather records were set or tied at long-record stations worldwide.
240 were record highs and 1,121 were record lows, counting maximum and minimum temperature.
By timescale, 48 were all-time records, 187 monthly and 1,695 daily.
Philadelphia Polisie set a monthly record daily precipitation of 39.0 mm (1.5 in) on 30 December 1978.
Across 154 earlier years (1799 to 2025) the same calendar date averaged 486 records.

Record Map

1,930 stations

1,930 station records on 30 December 1978 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 December 1978: highest significance records shown on the map
Station	Country	Type	Value	Significance
Philadelphia Polisie	South Africa	Record daily precipitation	39.0 mm (1.5 in)	68 of 100 (Major)
Viewmount	Australia	Record daily precipitation	91.0 mm (3.6 in)	58 of 100 (Notable)
Kaycee	United States	Record snow depth	25.4 cm (10.0 in)	57 of 100 (Notable)
Beerfelden	Germany	Record daily precipitation	47.8 mm (1.9 in)	55 of 100 (Notable)
Apuka	Russia	Record daily precipitation	25.6 mm (1.0 in)	55 of 100 (Notable)
Farson 2NNE	United States	Record low maximum temperature	-31.1 C (-24.0 F)	53 of 100 (Notable)
Cherdyn'	Russia	Record low minimum temperature	-47.5 C (-53.5 F)	51 of 100 (Notable)
Parnu	Estonia	Record low minimum temperature	-31.5 C (-24.7 F)	50 of 100 (Notable)
Dorset	South Africa	Record daily precipitation	150.0 mm (5.9 in)	50 of 100 (Notable)
Tranebjerg	Denmark	Record low maximum temperature	-6.5 C (20.3 F)	49 of 100 (Notable)
Bad Nauheim	Germany	Record daily precipitation	29.2 mm (1.1 in)	49 of 100 (Notable)
Uppsala_Aut	Sweden	Record low maximum temperature	-14.5 C (5.9 F)	49 of 100 (Notable)
Caen-Carpiquet	France	Record daily precipitation	40.6 mm (1.6 in)	48 of 100 (Notable)
Black Hills	South Africa	Record daily precipitation	119.0 mm (4.7 in)	48 of 100 (Notable)
Elsdorf/Erftkreis	Germany	Record daily precipitation	26.3 mm (1.0 in)	47 of 100 (Notable)
Oestersund-Froesoen	Sweden	Record low minimum temperature	-35.2 C (-31.4 F)	47 of 100 (Notable)
Saint Maries	United States	Record low maximum temperature	-18.9 C (-2.0 F)	47 of 100 (Notable)
Moran 5WNW	United States	Record low maximum temperature	-26.1 C (-15.0 F)	47 of 100 (Notable)
Bad Bergzabern	Germany	Record daily precipitation	32.4 mm (1.3 in)	46 of 100 (Notable)
Diablo Dam	United States	Record low maximum temperature	-11.7 C (10.9 F)	46 of 100 (Notable)
Old Koreelah (White Swamp (Ede	Australia	Record daily precipitation	127.0 mm (5.0 in)	45 of 100 (Notable)
Schleswig	Germany	Record snow depth	40.0 cm (15.7 in)	45 of 100 (Notable)
Konigstuhl	Germany	Record daily precipitation	33.5 mm (1.3 in)	45 of 100 (Notable)
St. Petersburg	Russia	Record low minimum temperature	-34.4 C (-29.9 F)	45 of 100 (Notable)
Driggs	United States	Record low maximum temperature	-20.6 C (-5.1 F)	45 of 100 (Notable)
Kia Ora Sandy Ridges	Australia	Record daily precipitation	76.0 mm (3.0 in)	44 of 100 (Notable)
Regensburg	Germany	Record high minimum temperature	6.1 C (43.0 F)	44 of 100 (Notable)
Neustadt/Weinstrasse	Germany	Record daily precipitation	31.8 mm (1.3 in)	44 of 100 (Notable)
St. Petersburg	Russia	Record low maximum temperature	-28.0 C (-18.4 F)	44 of 100 (Notable)
Visby_Flygplats	Sweden	Record low maximum temperature	-9.3 C (15.3 F)	44 of 100 (Notable)
Beloit	United States	Record daily snowfall	8.9 cm (3.5 in)	44 of 100 (Notable)
Heron 2 NW	United States	Record low maximum temperature	-18.3 C (-0.9 F)	44 of 100 (Notable)
Rock Springs	United States	Record low maximum temperature	-16.7 C (1.9 F)	44 of 100 (Notable)
Tucson Intl AP	United States	Record daily precipitation	27.2 mm (1.1 in)	44 of 100 (Notable)
Kholo	Australia	Record daily precipitation	73.2 mm (2.9 in)	43 of 100 (Notable)
Glen Innes (Mt Mitchell Forest	Australia	Record daily precipitation	68.6 mm (2.7 in)	43 of 100 (Notable)
Poretskoye	Russia	Record low minimum temperature	-39.0 C (-38.2 F)	43 of 100 (Notable)
Flahult	Sweden	Record low maximum temperature	-13.7 C (7.3 F)	43 of 100 (Notable)
Hamilton	United States	Record low maximum temperature	-21.1 C (-6.0 F)	43 of 100 (Notable)
Monchengladbach	Germany	Record daily precipitation	26.3 mm (1.0 in)	42 of 100 (Notable)
Liepaja	Latvia	Record low minimum temperature	-24.7 C (-12.5 F)	42 of 100 (Notable)
Waaihoek	South Africa	Record daily precipitation	60.5 mm (2.4 in)	42 of 100 (Notable)
Stornoway Airport	United Kingdom	Record low maximum temperature	0.3 C (32.5 F)	42 of 100 (Notable)
East Anaconda	United States	Record low maximum temperature	-22.8 C (-9.0 F)	42 of 100 (Notable)
Narva	Estonia	Record low minimum temperature	-42.6 C (-44.7 F)	41 of 100 (Notable)
Elatma	Russia	Record low minimum temperature	-37.2 C (-35.0 F)	41 of 100 (Notable)
Willows 6 W	United States	Record low minimum temperature	-10.0 C (14.0 F)	41 of 100 (Notable)
Garden Valley	United States	Record low maximum temperature	-15.6 C (3.9 F)	41 of 100 (Notable)
Riverton	United States	Record low minimum temperature	-41.1 C (-42.0 F)	41 of 100 (Notable)
Snake Rvr	United States	Record low maximum temperature	-21.1 C (-6.0 F)	41 of 100 (Notable)
Dinmore Post Office	Australia	Record daily precipitation	58.0 mm (2.3 in)	40 of 100 (Notable)
Innsbruck	Austria	Record high minimum temperature	3.2 C (37.8 F)	40 of 100 (Notable)
Neumunster	Germany	Record snow depth	22.0 cm (8.7 in)	40 of 100 (Notable)
Schmalkalden	Germany	Record daily precipitation	26.2 mm (1.0 in)	40 of 100 (Notable)
Utsira Fyr	Norway	Record low minimum temperature	-10.5 C (13.1 F)	40 of 100 (Notable)
Hatanga	Russia	Record low maximum temperature	-56.1 C (-69.0 F)	40 of 100 (Notable)
Kazan	Russia	Record low maximum temperature	-29.4 C (-20.9 F)	40 of 100 (Notable)
Orland	United States	Record low minimum temperature	-8.9 C (16.0 F)	40 of 100 (Notable)
Merriman	United States	Record snow depth	17.8 cm (7.0 in)	40 of 100 (Notable)
Angelica	United States	Record snow depth	55.9 cm (22.0 in)	40 of 100 (Notable)

Counts by Type and Timescale

1,930 records

Records set or tied on 30 December 1978 by type: Highest daily maximum 60, Lowest daily maximum 586, Highest daily minimum 180, Lowest daily minimum 535, Heaviest daily rainfall 409, Heaviest daily snowfall 80, Deepest snow cover 80.

Records on 30 December 1978 by type
Record type	Records
Highest daily maximum	60
Lowest daily maximum	586
Highest daily minimum	180
Lowest daily minimum	535
Heaviest daily rainfall	409
Heaviest daily snowfall	80
Deepest snow cover	80

Records on 30 December 1978 by timescale: all-time 48, monthly 187, daily 1,695.

How Much Records Were Beaten By

1,737 broken records

Margins by which the 1,737 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

30 December 1978

Top 20 records on 30 December 1978 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 1978	Philadelphia Polisie, ZA	monthly rain	39.0 mm (1.5 in)	21.2 mm (0.8 in)	40 years	68 of 100 (Major)
30 December 1978	Viewmount, AU	daily rain	91.0 mm (3.6 in)	57.2 mm (2.3 in)	44 years	58 of 100 (Notable)
30 December 1978	Kaycee, US	daily snow depth	25.4 cm (10.0 in)	12.7 cm (5.0 in)	71 years	57 of 100 (Notable)
30 December 1978	Beerfelden, DE	daily rain	47.8 mm (1.9 in)	32.3 mm (1.3 in)	37 years	55 of 100 (Notable)
30 December 1978	Apuka, RU	daily rain	25.6 mm (1.0 in)	17.5 mm (0.7 in)	39 years	55 of 100 (Notable)
30 December 1978	Farson 2NNE, US	all-time low max	-31.1 C (-24.0 F)	6.1 C (11.0 F)	56 years	53 of 100 (Notable)
30 December 1978	Cherdyn', RU	all-time low min	-47.5 C (-53.5 F)	1.6 C (2.9 F)	76 years	51 of 100 (Notable)
30 December 1978	Parnu, EE	monthly low min	-31.5 C (-24.7 F)	4.9 C (8.8 F)	76 years	50 of 100 (Notable)
30 December 1978	Dorset, ZA	daily rain	150.0 mm (5.9 in)	128.0 mm (5.0 in)	23 years	50 of 100 (Notable)
30 December 1978	Tranebjerg, DK	daily low max	-6.5 C (20.3 F)	3.8 C (6.8 F)	87 years	49 of 100 (Notable)
30 December 1978	Bad Nauheim, DE	daily rain	29.2 mm (1.1 in)	18.2 mm (0.7 in)	23 years	49 of 100 (Notable)
30 December 1978	Uppsala_Aut, SE	daily low max	-14.5 C (5.9 F)	4.1 C (7.4 F)	110 years	49 of 100 (Notable)
30 December 1978	Caen-Carpiquet, FR	monthly rain	40.6 mm (1.6 in)	13.4 mm (0.5 in)	18 years	48 of 100 (Notable)
30 December 1978	Black Hills, ZA	daily rain	119.0 mm (4.7 in)	84.0 mm (3.3 in)	15 years	48 of 100 (Notable)
30 December 1978	Elsdorf/Erftkreis, DE	daily rain	26.3 mm (1.0 in)	18.3 mm (0.7 in)	16 years	47 of 100 (Notable)
30 December 1978	Oestersund-Froesoen, SE	monthly low min	-35.2 C (-31.4 F)	0.2 C (0.4 F)	96 years	47 of 100 (Notable)
30 December 1978	Saint Maries, US	all-time low max	-18.9 C (-2.0 F)	1.7 C (3.1 F)	56 years	47 of 100 (Notable)
30 December 1978	Moran 5WNW, US	all-time low max	-26.1 C (-15.0 F)	2.8 C (5.0 F)	54 years	47 of 100 (Notable)
30 December 1978	Bad Bergzabern, DE	daily rain	32.4 mm (1.3 in)	23.7 mm (0.9 in)	12 years	46 of 100 (Notable)
30 December 1978	Diablo Dam, US	daily low max	-11.7 C (10.9 F)	7.8 C (14.0 F)	63 years	46 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 1978

Records set or tied on this calendar date in each year from 1799 to 1978. 1978 had 1,930 records.

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

Records on 12-30 in each year
Year	Records
1799	2
1835	1
1850	1
1853	1
1856	1
1859	1
1863	1
1868	1
1870	4
1872	3
1874	2
1875	2
1876	3
1878	1
1880	5
1881	3
1882	3
1884	2
1888	2
1889	2
1890	7
1891	1
1892	1
1893	3
1895	6
1896	3
1897	7
1898	6
1899	3
1900	5
1901	8
1902	2
1903	8
1904	12
1905	10
1906	11
1907	26
1908	17
1909	13
1910	18
1911	20
1912	37
1913	32
1914	47
1915	62
1916	45
1917	217
1918	25
1919	82
1920	84
1921	111
1922	227
1923	223
1924	65
1925	184
1926	63
1927	290
1928	31
1929	382
1930	71
1931	509
1932	407
1933	279
1934	206
1935	202
1936	931
1937	234
1938	208
1939	237
1940	397
1941	149
1942	584
1943	165
1944	137
1945	251
1946	584
1947	317
1948	760
1949	206
1950	479
1951	955
1952	334
1953	399
1954	538
1955	254
1956	556
1957	443
1958	525
1959	216
1960	345
1961	389
1962	671
1963	567
1964	537
1965	1,122
1966	403
1967	760
1968	1,391
1969	817
1970	571
1971	1,122
1972	1,052
1973	1,262
1974	564
1975	703
1976	981
1977	795
1978	1,930
1979	427
1980	1,560
1981	684
1982	630
1983	2,765
1984	1,834
1985	568
1986	852
1987	1,270
1988	755
1989	528
1990	3,065
1991	525
1992	1,210
1993	865
1994	642
1995	1,455
1996	1,620
1997	1,384
1998	801
1999	838
2000	1,377
2001	651
2002	1,034
2003	661
2004	974
2005	928
2006	1,779
2007	748
2008	653
2009	933
2010	1,200
2011	782
2012	676
2013	642
2014	660
2015	820
2016	706
2017	1,324
2018	284
2019	1,131
2020	604
2021	1,455
2022	909
2023	726
2024	638
2025	325

Download the Data

Data for records on 1978-12-30: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	1,682
50 to 100	36
100 to 150	13
150 to 200	5
200 to 250	0
250 to 300	1