Weather Records on 17 February 1986

1,077 weather records were set or tied worldwide on 17 February 1986. Highest significance: Ft Bidwell, US.

Key Facts for 17 February 1986

On 17 February 1986, 1,077 weather records were set or tied at long-record stations worldwide.
512 were record highs and 65 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 78 monthly and 994 daily.
Ft Bidwell set a monthly record daily precipitation of 87.1 mm (3.4 in) on 17 February 1986.
Across 161 earlier years (1794 to 2026) the same calendar date averaged 495 records.

Record Map

1,077 stations

1,077 station records on 17 February 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 February 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ft Bidwell	United States	Record daily precipitation	87.1 mm (3.4 in)	88 of 100 (Exceptional)
Pendroy 2 NNW	United States	Record daily snowfall	76.2 cm (30.0 in)	75 of 100 (Major)
Iowa Hill	United States	Record daily precipitation	109.7 mm (4.3 in)	72 of 100 (Major)
Richmond	United States	Record daily precipitation	41.1 mm (1.6 in)	69 of 100 (Major)
Colgate Powerhouse	United States	Record daily precipitation	99.1 mm (3.9 in)	67 of 100 (Major)
Clover Valley	United States	Record daily precipitation	43.9 mm (1.7 in)	67 of 100 (Major)
Downieville	United States	Record daily precipitation	176.3 mm (6.9 in)	66 of 100 (Major)
Electra P H	United States	Record daily precipitation	96.3 mm (3.8 in)	63 of 100 (Major)
Carson City	United States	Record daily precipitation	64.8 mm (2.6 in)	62 of 100 (Major)
Columbus	United States	Record daily snowfall	33.0 cm (13.0 in)	61 of 100 (Major)
Pendroy 2 NNW	United States	Record daily precipitation	33.0 mm (1.3 in)	60 of 100 (Major)
Mtn City Rs	United States	Record daily precipitation	36.8 mm (1.4 in)	60 of 100 (Major)
Burley Muni AP	United States	Record daily precipitation	43.7 mm (1.7 in)	60 of 100 (Major)
Auburn	United States	Record daily precipitation	83.8 mm (3.3 in)	59 of 100 (Notable)
Berkeley	United States	Record daily precipitation	52.6 mm (2.1 in)	58 of 100 (Notable)
Ukiah	United States	Record daily precipitation	104.6 mm (4.1 in)	58 of 100 (Notable)
Blackleaf	United States	Record daily snowfall	25.4 cm (10.0 in)	56 of 100 (Notable)
Columbus	United States	Record daily precipitation	25.4 mm (1.0 in)	55 of 100 (Notable)
Tahoe City	United States	Record daily precipitation	99.3 mm (3.9 in)	54 of 100 (Notable)
Calistoga	United States	Record daily precipitation	205.7 mm (8.1 in)	53 of 100 (Notable)
Placerville	United States	Record daily precipitation	86.9 mm (3.4 in)	53 of 100 (Notable)
Vinton	United States	Record daily precipitation	73.7 mm (2.9 in)	53 of 100 (Notable)
Deer Creek Dam	United States	Record daily precipitation	94.7 mm (3.7 in)	53 of 100 (Notable)
Fuzhou	China	Record daily precipitation	57.2 mm (2.3 in)	52 of 100 (Notable)
W Pt	United States	Record daily precipitation	99.1 mm (3.9 in)	52 of 100 (Notable)
Woodfords	United States	Record daily precipitation	106.9 mm (4.2 in)	52 of 100 (Notable)
Morgan	United States	Record daily precipitation	46.2 mm (1.8 in)	52 of 100 (Notable)
Livermore	United States	Record daily precipitation	34.5 mm (1.4 in)	51 of 100 (Notable)
Machilipatnam	India	Record daily precipitation	54.1 mm (2.1 in)	50 of 100 (Notable)
Lake Spaulding	United States	Record daily precipitation	243.1 mm (9.6 in)	50 of 100 (Notable)
Lodi	United States	Record daily precipitation	64.5 mm (2.5 in)	50 of 100 (Notable)
Vacaville	United States	Record daily precipitation	111.8 mm (4.4 in)	50 of 100 (Notable)
Cedarville	United States	Record daily precipitation	48.8 mm (1.9 in)	49 of 100 (Notable)
Colfax	United States	Record daily precipitation	149.9 mm (5.9 in)	49 of 100 (Notable)
Covelo	United States	Record daily precipitation	95.3 mm (3.8 in)	48 of 100 (Notable)
Elliott	United States	Record daily precipitation	49.5 mm (1.9 in)	48 of 100 (Notable)
Pacific House	United States	Record daily precipitation	143.5 mm (5.6 in)	48 of 100 (Notable)
Yucca 1 NNE	United States	Record daily precipitation	26.4 mm (1.0 in)	47 of 100 (Notable)
Graton	United States	Record daily precipitation	125.5 mm (4.9 in)	47 of 100 (Notable)
Alturas	United States	Record daily precipitation	28.2 mm (1.1 in)	46 of 100 (Notable)
Represa	United States	Record daily precipitation	50.8 mm (2.0 in)	46 of 100 (Notable)
Saint Helena	United States	Record daily precipitation	90.2 mm (3.6 in)	46 of 100 (Notable)
Elk Rvr	United States	Record daily precipitation	52.1 mm (2.1 in)	46 of 100 (Notable)
Corinne	United States	Record daily precipitation	31.2 mm (1.2 in)	46 of 100 (Notable)
Laketown	United States	Record daily precipitation	27.4 mm (1.1 in)	46 of 100 (Notable)
Crescent City 3 NNW	United States	Record daily precipitation	129.5 mm (5.1 in)	45 of 100 (Notable)
Coeur D'Alene	United States	Record daily snowfall	17.8 cm (7.0 in)	45 of 100 (Notable)
Shoshone 1 WNW	United States	Record daily precipitation	26.7 mm (1.1 in)	45 of 100 (Notable)
Snake Creek Powerhouse	United States	Record daily precipitation	46.0 mm (1.8 in)	45 of 100 (Notable)
Blue Canyon Nyack AP	United States	Record daily precipitation	217.7 mm (8.6 in)	45 of 100 (Notable)
Xiamen	China	Record daily precipitation	52.7 mm (2.1 in)	44 of 100 (Notable)
Half Moon Bay	United States	Record daily precipitation	51.6 mm (2.0 in)	44 of 100 (Notable)
Canyon Dam	United States	Record daily precipitation	101.6 mm (4.0 in)	43 of 100 (Notable)
Napa State Hospital	United States	Record daily precipitation	77.0 mm (3.0 in)	43 of 100 (Notable)
Redwood City	United States	Record daily precipitation	48.3 mm (1.9 in)	43 of 100 (Notable)
E Glacier	United States	Record daily snowfall	45.7 cm (18.0 in)	43 of 100 (Notable)
Arthur 4NW	United States	Record daily precipitation	38.9 mm (1.5 in)	43 of 100 (Notable)
Sacramento 5 ESE	United States	Record daily precipitation	81.5 mm (3.2 in)	43 of 100 (Notable)
Cafelandia	Brazil	Record daily precipitation	114.9 mm (4.5 in)	42 of 100 (Notable)
Huntington Lake	United States	Record daily precipitation	101.6 mm (4.0 in)	42 of 100 (Notable)

Counts by Type and Timescale

1,077 records

Records set or tied on 17 February 1986 by type: Highest daily maximum 156, Lowest daily maximum 31, Highest daily minimum 356, Lowest daily minimum 34, Heaviest daily rainfall 372, Heaviest daily snowfall 94, Deepest snow cover 34.

Records on 17 February 1986 by type
Record type	Records
Highest daily maximum	156
Lowest daily maximum	31
Highest daily minimum	356
Lowest daily minimum	34
Heaviest daily rainfall	372
Heaviest daily snowfall	94
Deepest snow cover	34

Records on 17 February 1986 by timescale: all-time 5, monthly 78, daily 994.

How Much Records Were Beaten By

846 broken records

Margins by which the 846 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 280.0. Ties are not counted.

Top 20 by Significance

17 February 1986

Top 20 records on 17 February 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 February 1986	Ft Bidwell, US	monthly rain	87.1 mm (3.4 in)	29.9 mm (1.2 in)	95 years	88 of 100 (Exceptional)
17 February 1986	Pendroy 2 NNW, US	all-time snowfall	76.2 cm (30.0 in)	15.2 cm (6.0 in)	42 years	75 of 100 (Major)
17 February 1986	Iowa Hill, US	daily rain	109.7 mm (4.3 in)	69.1 mm (2.7 in)	88 years	72 of 100 (Major)
17 February 1986	Richmond, US	monthly rain	41.1 mm (1.6 in)	13.7 mm (0.5 in)	70 years	69 of 100 (Major)
17 February 1986	Colgate Powerhouse, US	daily rain	99.1 mm (3.9 in)	64.8 mm (2.6 in)	68 years	67 of 100 (Major)
17 February 1986	Clover Valley, US	daily rain	43.9 mm (1.7 in)	25.4 mm (1.0 in)	84 years	67 of 100 (Major)
17 February 1986	Downieville, US	daily rain	176.3 mm (6.9 in)	105.9 mm (4.2 in)	68 years	66 of 100 (Major)
17 February 1986	Electra P H, US	daily rain	96.3 mm (3.8 in)	48.0 mm (1.9 in)	68 years	63 of 100 (Major)
17 February 1986	Carson City, US	daily rain	64.8 mm (2.6 in)	53.4 mm (2.1 in)	44 years	62 of 100 (Major)
17 February 1986	Columbus, US	monthly snowfall	33.0 cm (13.0 in)	12.7 cm (5.0 in)	53 years	61 of 100 (Major)
17 February 1986	Pendroy 2 NNW, US	monthly rain	33.0 mm (1.3 in)	17.5 mm (0.7 in)	23 years	60 of 100 (Major)
17 February 1986	Mtn City Rs, US	monthly rain	36.8 mm (1.4 in)	15.2 mm (0.6 in)	24 years	60 of 100 (Major)
17 February 1986	Burley Muni AP, US	monthly rain	43.7 mm (1.7 in)	26.2 mm (1.0 in)	26 years	60 of 100 (Major)
17 February 1986	Auburn, US	daily rain	83.8 mm (3.3 in)	48.2 mm (1.9 in)	68 years	59 of 100 (Notable)
17 February 1986	Berkeley, US	daily rain	52.6 mm (2.1 in)	26.9 mm (1.1 in)	88 years	58 of 100 (Notable)
17 February 1986	Ukiah, US	daily rain	104.6 mm (4.1 in)	57.4 mm (2.3 in)	46 years	58 of 100 (Notable)
17 February 1986	Blackleaf, US	daily snowfall	25.4 cm (10.0 in)	19.8 cm (7.8 in)	27 years	56 of 100 (Notable)
17 February 1986	Columbus, US	monthly rain	25.4 mm (1.0 in)	10.2 mm (0.4 in)	0 years	55 of 100 (Notable)
17 February 1986	Tahoe City, US	daily rain	99.3 mm (3.9 in)	57.4 mm (2.3 in)	34 years	54 of 100 (Notable)
17 February 1986	Calistoga, US	monthly rain	205.7 mm (8.1 in)	55.8 mm (2.2 in)	26 years	53 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 1986

Records set or tied on this calendar date in each year from 1794 to 1986. 1986 had 1,077 records.

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

Records on 02-17 in each year
Year	Records
1794	1
1824	1
1827	1
1843	1
1847	2
1849	1
1850	1
1851	1
1852	1
1855	4
1856	1
1858	1
1859	2
1866	2
1867	3
1869	1
1874	1
1876	2
1878	1
1879	2
1880	1
1883	2
1884	1
1885	4
1887	2
1888	1
1891	1
1892	7
1893	1
1894	1
1895	7
1896	6
1897	1
1898	6
1899	3
1900	6
1901	5
1902	16
1903	22
1904	11
1905	9
1906	10
1907	6
1908	9
1909	10
1910	25
1911	27
1912	19
1913	17
1914	41
1915	17
1916	26
1917	38
1918	64
1919	236
1920	39
1921	182
1922	78
1923	69
1924	252
1925	188
1926	145
1927	377
1928	488
1929	234
1930	367
1931	212
1932	390
1933	164
1934	344
1935	150
1936	1,102
1937	295
1938	529
1939	755
1940	330
1941	166
1942	671
1943	542
1944	462
1945	349
1946	341
1947	274
1948	890
1949	436
1950	469
1951	358
1952	394
1953	369
1954	1,009
1955	721
1956	1,082
1957	252
1958	1,806
1959	575
1960	222
1961	734
1962	397
1963	303
1964	184
1965	332
1966	480
1967	611
1968	350
1969	604
1970	1,050
1971	487
1972	750
1973	821
1974	355
1975	1,035
1976	1,421
1977	650
1978	1,452
1979	1,965
1980	954
1981	2,353
1982	732
1983	484
1984	748
1985	622
1986	1,077
1987	659
1988	400
1989	1,026
1990	1,370
1991	771
1992	593
1993	2,102
1994	705
1995	1,387
1996	1,115
1997	841
1998	2,204
1999	697
2000	870
2001	712
2002	863
2003	1,151
2004	880
2005	538
2006	1,621
2007	1,177
2008	1,155
2009	765
2010	1,544
2011	1,615
2012	444
2013	312
2014	832
2015	1,209
2016	842
2017	864
2018	509
2019	1,177
2020	1,047
2021	2,052
2022	1,116
2023	1,581
2024	703
2025	617
2026	954

Download the Data

Data for records on 1986-02-17: 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	769
50 to 100	63
100 to 150	9
150 to 200	3
200 to 250	0
250 to 300	2