Weather Records on 17 October 1999

815 weather records were set or tied worldwide on 17 October 1999. Highest significance: Georgetown 2 E, US.

Key Facts for 17 October 1999

On 17 October 1999, 815 weather records were set or tied at long-record stations worldwide.
191 were record highs and 357 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 26 monthly and 789 daily.
Georgetown 2 E set a daily record precipitation of 176.3 mm (6.9 in) on 17 October 1999.
Across 162 earlier years (1793 to 2025) the same calendar date averaged 437 records.

Record Map

815 stations

815 station records on 17 October 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 October 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Georgetown 2 E	United States	Record daily precipitation	176.3 mm (6.9 in)	77 of 100 (Major)
Kenai AP	United States	Record daily precipitation	40.1 mm (1.6 in)	70 of 100 (Major)
Bordeaux-Merignac	France	Record daily precipitation	45.4 mm (1.8 in)	69 of 100 (Major)
Progresso	United States	Record daily snowfall	20.3 cm (8.0 in)	67 of 100 (Major)
Willard 4 SW	United States	Record daily precipitation	106.7 mm (4.2 in)	67 of 100 (Major)
Norfolk Intl AP	United States	Record daily precipitation	158.2 mm (6.2 in)	66 of 100 (Major)
Capitan	United States	Record daily snowfall	15.2 cm (6.0 in)	65 of 100 (Major)
Sandia Park	United States	Record daily snowfall	20.3 cm (8.0 in)	64 of 100 (Major)
Goldsboro 4 SE	United States	Record daily precipitation	115.1 mm (4.5 in)	64 of 100 (Major)
Lewiston	United States	Record daily precipitation	161.3 mm (6.4 in)	63 of 100 (Major)
Elk	United States	Record daily snowfall	10.2 cm (4.0 in)	60 of 100 (Major)
Espanola	United States	Record daily snowfall	10.2 cm (4.0 in)	60 of 100 (Major)
Suffolk Lake Kilby	United States	Record daily precipitation	146.6 mm (5.8 in)	60 of 100 (Major)
Rocky Mt	United States	Record daily precipitation	109.0 mm (4.3 in)	58 of 100 (Notable)
Gran Quivira Natl Mon	United States	Record daily snowfall	10.2 cm (4.0 in)	57 of 100 (Notable)
Pope AFB	United States	Record daily precipitation	106.7 mm (4.2 in)	57 of 100 (Notable)
Elizabethtown	United States	Record daily precipitation	168.9 mm (6.6 in)	55 of 100 (Notable)
Elida	United States	Record daily snowfall	10.2 cm (4.0 in)	54 of 100 (Notable)
Eddington Station	Australia	Record daily precipitation	35.0 mm (1.4 in)	53 of 100 (Notable)
Trinidad	United States	Record daily snowfall	10.2 cm (4.0 in)	53 of 100 (Notable)
Golden	United States	Record daily snowfall	7.6 cm (3.0 in)	52 of 100 (Notable)
Pecos Nm	United States	Record daily snowfall	10.2 cm (4.0 in)	52 of 100 (Notable)
Mont-de-Marsan	France	Record daily precipitation	68.4 mm (2.7 in)	50 of 100 (Notable)
Jemez Springs	United States	Record daily snowfall	7.6 cm (3.0 in)	50 of 100 (Notable)
Davis 2 WSW Exp Farm	United States	Record high minimum temperature	18.9 C (66.0 F)	48 of 100 (Notable)
La Pryor	United States	Record daily precipitation	52.8 mm (2.1 in)	48 of 100 (Notable)
Timovskoe	Russia	Record daily precipitation	43.8 mm (1.7 in)	47 of 100 (Notable)
Gran Quivira Natl Mon	United States	Record snow depth	10.2 cm (4.0 in)	47 of 100 (Notable)
Progresso	United States	Record snow depth	25.4 cm (10.0 in)	47 of 100 (Notable)
Corozal Substn	Puerto Rico [United States]	Record daily precipitation	81.3 mm (3.2 in)	46 of 100 (Notable)
Eagle Pass 3N	United States	Record daily precipitation	41.7 mm (1.6 in)	46 of 100 (Notable)
Byers 5 ENE	United States	Record daily snowfall	5.1 cm (2.0 in)	45 of 100 (Notable)
Ft Sumner	United States	Record daily snowfall	5.1 cm (2.0 in)	45 of 100 (Notable)
Santa Rosa	United States	Record daily snowfall	6.4 cm (2.5 in)	45 of 100 (Notable)
Brookgreen Gardens	United States	Record daily precipitation	133.9 mm (5.3 in)	45 of 100 (Notable)
San Fernando	Mexico	Record daily precipitation	101.3 mm (4.0 in)	44 of 100 (Notable)
Ruidoso	United States	Record daily snowfall	11.4 cm (4.5 in)	44 of 100 (Notable)
Kinston Ag Rsch	United States	Record daily precipitation	117.6 mm (4.6 in)	44 of 100 (Notable)
New Bern - ASOS	United States	Record daily precipitation	157.0 mm (6.2 in)	44 of 100 (Notable)
Mosquero 1 NE	United States	Record daily snowfall	7.6 cm (3.0 in)	43 of 100 (Notable)
Chita	Russia	Record high minimum temperature	3.0 C (37.4 F)	42 of 100 (Notable)
Pedernal 9 E	United States	Record daily snowfall	7.6 cm (3.0 in)	42 of 100 (Notable)
Vale	United States	Record low minimum temperature	-8.3 C (17.1 F)	41 of 100 (Notable)
Leroy 5 WSW	United States	Record low maximum temperature	3.3 C (37.9 F)	40 of 100 (Notable)
Sandia Park	United States	Record snow depth	20.3 cm (8.0 in)	40 of 100 (Notable)
Dwtn Charleston	United States	Record daily precipitation	99.3 mm (3.9 in)	40 of 100 (Notable)
Waterdale	United States	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Glenns Ferry	United States	Record low minimum temperature	-8.9 C (16.0 F)	39 of 100 (Notable)
W Liberty 3NW	United States	Record high maximum temperature	30.6 C (87.1 F)	39 of 100 (Notable)
Aachen	Germany	Record low minimum temperature	1.1 C (34.0 F)	38 of 100 (Notable)
Cerro	United States	Record low minimum temperature	-10.0 C (14.0 F)	38 of 100 (Notable)
Paragonah	United States	Record low minimum temperature	-8.3 C (17.1 F)	38 of 100 (Notable)
Florence Rgnl AP	United States	Record daily precipitation	67.1 mm (2.6 in)	38 of 100 (Notable)
Geyser Rch	United States	Record low maximum temperature	8.9 C (48.0 F)	37 of 100 (Notable)
Greenville	United States	Record high minimum temperature	20.6 C (69.1 F)	37 of 100 (Notable)
Lusk 2 SW	United States	Record low minimum temperature	-10.6 C (12.9 F)	37 of 100 (Notable)
South Pass City	United States	Record low maximum temperature	-2.8 C (27.0 F)	37 of 100 (Notable)
Millau	France	Record daily precipitation	45.0 mm (1.8 in)	36 of 100 (Notable)
Vallecillo (Dge)	Mexico	Record daily precipitation	34.8 mm (1.4 in)	36 of 100 (Notable)
Canon City	United States	Record daily snowfall	5.1 cm (2.0 in)	36 of 100 (Notable)

Counts by Type and Timescale

815 records

Records set or tied on 17 October 1999 by type: Highest daily maximum 100, Lowest daily maximum 110, Highest daily minimum 91, Lowest daily minimum 247, Heaviest daily rainfall 175, Heaviest daily snowfall 58, Deepest snow cover 34.

Records on 17 October 1999 by type
Record type	Records
Highest daily maximum	100
Lowest daily maximum	110
Highest daily minimum	91
Lowest daily minimum	247
Heaviest daily rainfall	175
Heaviest daily snowfall	58
Deepest snow cover	34

Records on 17 October 1999 by timescale: all-time 0, monthly 26, daily 789.

How Much Records Were Beaten By

624 broken records

Margins by which the 624 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

17 October 1999

Top 20 records on 17 October 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 October 1999	Georgetown 2 E, US	daily rain	176.3 mm (6.9 in)	132.4 mm (5.2 in)	92 years	77 of 100 (Major)
17 October 1999	Kenai AP, US	daily rain	40.1 mm (1.6 in)	22.3 mm (0.9 in)	93 years	70 of 100 (Major)
17 October 1999	Bordeaux-Merignac, FR	daily rain	45.4 mm (1.8 in)	27.4 mm (1.1 in)	84 years	69 of 100 (Major)
17 October 1999	Progresso, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	69 years	67 of 100 (Major)
17 October 1999	Willard 4 SW, US	daily rain	106.7 mm (4.2 in)	70.1 mm (2.8 in)	66 years	67 of 100 (Major)
17 October 1999	Norfolk Intl AP, US	monthly rain	158.2 mm (6.2 in)	64.0 mm (2.5 in)	39 years	66 of 100 (Major)
17 October 1999	Capitan, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	88 years	65 of 100 (Major)
17 October 1999	Sandia Park, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	60 years	64 of 100 (Major)
17 October 1999	Goldsboro 4 SE, US	daily rain	115.1 mm (4.5 in)	62.5 mm (2.5 in)	62 years	64 of 100 (Major)
17 October 1999	Lewiston, US	monthly rain	161.3 mm (6.4 in)	64.5 mm (2.5 in)	30 years	63 of 100 (Major)
17 October 1999	Elk, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	103 years	60 of 100 (Major)
17 October 1999	Espanola, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	101 years	60 of 100 (Major)
17 October 1999	Suffolk Lake Kilby, US	monthly rain	146.6 mm (5.8 in)	53.4 mm (2.1 in)	40 years	60 of 100 (Major)
17 October 1999	Rocky Mt, US	daily rain	109.0 mm (4.3 in)	55.7 mm (2.2 in)	62 years	58 of 100 (Notable)
17 October 1999	Gran Quivira Natl Mon, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	93 years	57 of 100 (Notable)
17 October 1999	Pope AFB, US	daily rain	106.7 mm (4.2 in)	88.4 mm (3.5 in)	42 years	57 of 100 (Notable)
17 October 1999	Elizabethtown, US	monthly rain	168.9 mm (6.6 in)	43.9 mm (1.7 in)	48 years	55 of 100 (Notable)
17 October 1999	Elida, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	84 years	54 of 100 (Notable)
17 October 1999	Eddington Station, AU	daily rain	35.0 mm (1.4 in)	25.6 mm (1.0 in)	77 years	53 of 100 (Notable)
17 October 1999	Trinidad, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	100 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

1793 to 1999

Records set or tied on this calendar date in each year from 1793 to 1999. 1999 had 815 records.

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

Records on 10-17 in each year
Year	Records
1793	1
1796	2
1808	2
1810	1
1811	1
1817	1
1820	1
1830	1
1836	1
1844	1
1845	1
1868	1
1869	2
1870	1
1872	1
1874	1
1875	1
1876	3
1877	1
1878	1
1879	7
1881	1
1882	1
1883	1
1884	2
1885	2
1886	1
1889	1
1890	3
1891	2
1892	6
1893	5
1894	2
1895	1
1897	3
1898	6
1899	3
1900	3
1901	3
1902	4
1903	9
1904	17
1905	12
1906	3
1907	16
1908	46
1909	18
1910	13
1911	24
1912	12
1913	26
1914	72
1915	7
1916	81
1917	29
1918	20
1919	34
1920	82
1921	64
1922	60
1923	149
1924	81
1925	324
1926	153
1927	163
1928	530
1929	119
1930	441
1931	431
1932	345
1933	190
1934	262
1935	337
1936	338
1937	865
1938	710
1939	424
1940	580
1941	194
1942	349
1943	1,173
1944	415
1945	289
1946	437
1947	744
1948	724
1949	442
1950	809
1951	274
1952	474
1953	463
1954	579
1955	562
1956	353
1957	245
1958	415
1959	403
1960	432
1961	525
1962	350
1963	513
1964	492
1965	920
1966	551
1967	576
1968	929
1969	714
1970	815
1971	1,053
1972	866
1973	542
1974	1,055
1975	605
1976	1,381
1977	1,060
1978	583
1979	468
1980	1,366
1981	555
1982	575
1983	526
1984	1,551
1985	585
1986	354
1987	828
1988	827
1989	1,163
1990	1,109
1991	1,352
1992	1,384
1993	1,001
1994	1,306
1995	1,076
1996	987
1997	1,114
1998	1,455
1999	815
2000	461
2001	878
2002	992
2003	764
2004	935
2005	643
2006	1,506
2007	690
2008	467
2009	1,606
2010	625
2011	734
2012	550
2013	516
2014	530
2015	843
2016	1,559
2017	743
2018	1,163
2019	504
2020	889
2021	294
2022	964
2023	544
2024	994
2025	363

Download the Data

Data for records on 1999-10-17: 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	569
50 to 100	33
100 to 150	16
150 to 200	2
200 to 250	3
250 to 300	1