Weather Records on 30 December 2017

1,324 weather records were set or tied worldwide on 30 December 2017. Highest significance: Elliston, US.

Key Facts for 30 December 2017

On 30 December 2017, 1,324 weather records were set or tied at long-record stations worldwide.
643 were record highs and 243 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 41 monthly and 1,280 daily.
Elliston set a monthly record daily precipitation of 32.0 mm (1.3 in) on 30 December 2017.
Across 154 earlier years (1799 to 2025) the same calendar date averaged 490 records.

Record Map

1,324 stations

1,324 station records on 30 December 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 December 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Elliston	United States	Record daily precipitation	32.0 mm (1.3 in)	72 of 100 (Major)
Kimbolton	Australia	Record daily precipitation	256.0 mm (10.1 in)	65 of 100 (Major)
Elliston	United States	Record daily snowfall	48.3 cm (19.0 in)	63 of 100 (Major)
Tabora Airport	Tanzania	Record daily precipitation	99.3 mm (3.9 in)	59 of 100 (Notable)
London State Fish Hatchery	United States	Record daily snowfall	6.4 cm (2.5 in)	56 of 100 (Notable)
Minonk	United States	Record daily snowfall	14.0 cm (5.5 in)	53 of 100 (Notable)
Jokkmokk	Sweden	Record snow depth	94.0 cm (37.0 in)	52 of 100 (Notable)
Petoskey	United States	Record daily snowfall	27.9 cm (11.0 in)	52 of 100 (Notable)
Haugan 1 W	United States	Record daily snowfall	25.4 cm (10.0 in)	52 of 100 (Notable)
Harlowton	United States	Record snow depth	35.6 cm (14.0 in)	51 of 100 (Notable)
Holter Dam	United States	Record daily snowfall	16.5 cm (6.5 in)	51 of 100 (Notable)
Holter Dam	United States	Record snow depth	58.4 cm (23.0 in)	51 of 100 (Notable)
Aledo	United States	Record daily snowfall	10.2 cm (4.0 in)	49 of 100 (Notable)
Watseka Public Works	United States	Record daily snowfall	11.4 cm (4.5 in)	49 of 100 (Notable)
Great Falls 16St	United States	Record daily snowfall	9.1 cm (3.6 in)	49 of 100 (Notable)
Cobbora (Ellismayne)	Australia	Record daily precipitation	28.0 mm (1.1 in)	48 of 100 (Notable)
Steamboat Springs	United States	Record high maximum temperature	11.7 C (53.1 F)	48 of 100 (Notable)
Coeur D'Alene	United States	Record daily precipitation	43.2 mm (1.7 in)	48 of 100 (Notable)
Warren (Mumblebone)	Australia	Record daily precipitation	26.4 mm (1.0 in)	47 of 100 (Notable)
Dargo	Australia	Record daily precipitation	40.2 mm (1.6 in)	47 of 100 (Notable)
Lord Howe Island Aero	Australia	Record daily precipitation	67.3 mm (2.6 in)	46 of 100 (Notable)
Hinsdale 4 SW	United States	Record snow depth	33.0 cm (13.0 in)	46 of 100 (Notable)
Greenville Wtp	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
Streator 2SE	United States	Record daily snowfall	10.2 cm (4.0 in)	45 of 100 (Notable)
Big Timber	United States	Record snow depth	71.1 cm (28.0 in)	45 of 100 (Notable)
Choteau	United States	Record snow depth	40.6 cm (16.0 in)	45 of 100 (Notable)
Gilman	United States	Record daily snowfall	7.6 cm (3.0 in)	44 of 100 (Notable)
Lennep 5 SW	United States	Record daily snowfall	29.0 cm (11.4 in)	44 of 100 (Notable)
Hillsboro	United States	Record high maximum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Millersburg	United States	Record daily snowfall	6.4 cm (2.5 in)	44 of 100 (Notable)
Parkersburg	United States	Record daily snowfall	5.1 cm (2.0 in)	44 of 100 (Notable)
Biskra	Algeria	Record high minimum temperature	14.0 C (57.2 F)	43 of 100 (Notable)
Mancos 1SW	United States	Record high maximum temperature	14.4 C (57.9 F)	43 of 100 (Notable)
Monmouth	United States	Record daily snowfall	9.1 cm (3.6 in)	43 of 100 (Notable)
Kokomo 3 WSW	United States	Record daily snowfall	16.0 cm (6.3 in)	43 of 100 (Notable)
Rushville	United States	Record daily snowfall	5.1 cm (2.0 in)	43 of 100 (Notable)
Vinton	United States	Record daily snowfall	12.7 cm (5.0 in)	43 of 100 (Notable)
Carabost	Australia	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Hermit 8 SE	United States	Record high maximum temperature	14.4 C (57.9 F)	42 of 100 (Notable)
Potlatch 3 NNE	United States	Record daily precipitation	56.1 mm (2.2 in)	42 of 100 (Notable)
Searchlight	United States	Record high maximum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Mountainair	United States	Record high maximum temperature	17.8 C (64.0 F)	42 of 100 (Notable)
Milesville 5 NE	United States	Record daily snowfall	10.2 cm (4.0 in)	42 of 100 (Notable)
Scipio	United States	Record high maximum temperature	15.6 C (60.1 F)	42 of 100 (Notable)
Jackson	United States	Record high minimum temperature	3.9 C (39.0 F)	42 of 100 (Notable)
Ojai	United States	Record high maximum temperature	30.6 C (87.1 F)	41 of 100 (Notable)
Beaver Is	United States	Record snow depth	43.2 cm (17.0 in)	41 of 100 (Notable)
Wheatland 4N	United States	Record low maximum temperature	-11.7 C (10.9 F)	41 of 100 (Notable)
Williston Sloulin Fld	United States	Record low maximum temperature	-26.1 C (-15.0 F)	41 of 100 (Notable)
Liberec	Czech Republic	Record daily precipitation	30.0 mm (1.2 in)	40 of 100 (Notable)
Tombstone	United States	Record high minimum temperature	10.0 C (50.0 F)	40 of 100 (Notable)
Stanley	United States	Record high minimum temperature	0.6 C (33.1 F)	40 of 100 (Notable)
Cascade 5 S	United States	Record snow depth	27.9 cm (11.0 in)	40 of 100 (Notable)
McGill	United States	Record high minimum temperature	5.0 C (41.0 F)	40 of 100 (Notable)
Aztec Ruins Nm	United States	Record high maximum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Tupper Lake Sunmount	United States	Record low maximum temperature	-17.8 C (0.0 F)	40 of 100 (Notable)
Urbana Wrf	United States	Record daily snowfall	7.9 cm (3.1 in)	40 of 100 (Notable)
Deseret	United States	Record high maximum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Glenburn	Australia	Record daily precipitation	32.2 mm (1.3 in)	39 of 100 (Notable)
Lifton Pumping STN	United States	Record high maximum temperature	11.7 C (53.1 F)	39 of 100 (Notable)

Counts by Type and Timescale

1,324 records

Records set or tied on 30 December 2017 by type: Highest daily maximum 438, Lowest daily maximum 177, Highest daily minimum 205, Lowest daily minimum 66, Heaviest daily rainfall 218, Heaviest daily snowfall 168, Deepest snow cover 52.

Records on 30 December 2017 by type
Record type	Records
Highest daily maximum	438
Lowest daily maximum	177
Highest daily minimum	205
Lowest daily minimum	66
Heaviest daily rainfall	218
Heaviest daily snowfall	168
Deepest snow cover	52

Records on 30 December 2017 by timescale: all-time 3, monthly 41, daily 1,280.

How Much Records Were Beaten By

1,118 broken records

Margins by which the 1,118 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

30 December 2017

Top 20 records on 30 December 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 2017	Elliston, US	monthly rain	32.0 mm (1.3 in)	14.2 mm (0.6 in)	42 years	72 of 100 (Major)
30 December 2017	Kimbolton, AU	all-time rain	256.0 mm (10.1 in)	65.0 mm (2.6 in)	33 years	65 of 100 (Major)
30 December 2017	Elliston, US	monthly snowfall	48.3 cm (19.0 in)	20.4 cm (8.0 in)	12 years	63 of 100 (Major)
30 December 2017	Tabora Airport, TZ	daily rain	99.3 mm (3.9 in)	48.0 mm (1.9 in)	55 years	59 of 100 (Notable)
30 December 2017	London State Fish Hatchery, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	98 years	56 of 100 (Notable)
30 December 2017	Minonk, US	daily snowfall	14.0 cm (5.5 in)	6.4 cm (2.5 in)	90 years	53 of 100 (Notable)
30 December 2017	Jokkmokk, SE	monthly snow depth	94.0 cm (37.0 in)	4.0 cm (1.6 in)	105 years	52 of 100 (Notable)
30 December 2017	Petoskey, US	daily snowfall	27.9 cm (11.0 in)	7.6 cm (3.0 in)	100 years	52 of 100 (Notable)
30 December 2017	Haugan 1 W, US	daily snowfall	25.4 cm (10.0 in)	11.9 cm (4.7 in)	75 years	52 of 100 (Notable)
30 December 2017	Harlowton, US	daily snow depth	35.6 cm (14.0 in)	15.3 cm (6.0 in)	66 years	51 of 100 (Notable)
30 December 2017	Holter Dam, US	daily snowfall	16.5 cm (6.5 in)	8.9 cm (3.5 in)	76 years	51 of 100 (Notable)
30 December 2017	Holter Dam, US	monthly snow depth	58.4 cm (23.0 in)	17.8 cm (7.0 in)	1 year	51 of 100 (Notable)
30 December 2017	Aledo, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	90 years	49 of 100 (Notable)
30 December 2017	Watseka Public Works, US	daily snowfall	11.4 cm (4.5 in)	3.8 cm (1.5 in)	121 years	49 of 100 (Notable)
30 December 2017	Great Falls 16St, US	daily snowfall	9.1 cm (3.6 in)	4.0 cm (1.6 in)	118 years	49 of 100 (Notable)
30 December 2017	Cobbora (Ellismayne), AU	daily rain	28.0 mm (1.1 in)	12.0 mm (0.5 in)	126 years	48 of 100 (Notable)
30 December 2017	Steamboat Springs, US	daily high max	11.7 C (53.1 F)	4.5 C (8.1 F)	100 years	48 of 100 (Notable)
30 December 2017	Coeur D'Alene, US	daily rain	43.2 mm (1.7 in)	16.8 mm (0.7 in)	47 years	48 of 100 (Notable)
30 December 2017	Warren (Mumblebone), AU	daily rain	26.4 mm (1.0 in)	11.2 mm (0.4 in)	103 years	47 of 100 (Notable)
30 December 2017	Dargo, AU	daily rain	40.2 mm (1.6 in)	24.5 mm (1.0 in)	55 years	47 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 2017

Records set or tied on this calendar date in each year from 1799 to 2017. 2017 had 1,324 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 2017-12-30: 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	1,057
50 to 100	49
100 to 150	4
150 to 200	6
200 to 250	2