Weather Records on 27 October 1999

991 weather records were set or tied worldwide on 27 October 1999. Highest significance: Nikolo-Poloma, RU.

Key Facts for 27 October 1999

On 27 October 1999, 991 weather records were set or tied at long-record stations worldwide.
375 were record highs and 402 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 73 monthly and 917 daily.
Nikolo-Poloma set an all-time record daily precipitation of 77.0 mm (3.0 in) on 27 October 1999.
Across 159 earlier years (1802 to 2025) the same calendar date averaged 475 records.

Record Map

991 stations

991 station records on 27 October 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 October 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nikolo-Poloma	Russia	Record daily precipitation	77.0 mm (3.0 in)	75 of 100 (Major)
Ocozocoautla	Mexico	Record daily precipitation	60.7 mm (2.4 in)	59 of 100 (Notable)
Biskra	Algeria	Record high maximum temperature	37.1 C (98.8 F)	58 of 100 (Notable)
Grizzly	United States	Record daily precipitation	35.1 mm (1.4 in)	57 of 100 (Notable)
Katsuura	Japan	Record daily precipitation	194.8 mm (7.7 in)	53 of 100 (Notable)
Nikko	Japan	Record daily precipitation	141.0 mm (5.6 in)	53 of 100 (Notable)
San Andres (Isla)/S	Colombia	Record daily precipitation	99.6 mm (3.9 in)	48 of 100 (Notable)
Saint Paul Is AP	United States	Record daily snowfall	5.6 cm (2.2 in)	48 of 100 (Notable)
Irozaki	Japan	Record daily precipitation	142.0 mm (5.6 in)	46 of 100 (Notable)
Saint Paul Is AP	United States	Record snow depth	10.2 cm (4.0 in)	46 of 100 (Notable)
Fazenda Boa Esperanca	Brazil	Record daily precipitation	31.4 mm (1.2 in)	45 of 100 (Notable)
Sao Goncalo Do Abaete	Brazil	Record daily precipitation	56.1 mm (2.2 in)	45 of 100 (Notable)
Huauchinango	Mexico	Record low minimum temperature	-1.1 C (30.0 F)	45 of 100 (Notable)
Engenho Sitio	Brazil	Record daily precipitation	29.6 mm (1.2 in)	44 of 100 (Notable)
Santa Maria da Vitoria (Pcd)	Brazil	Record daily precipitation	57.4 mm (2.3 in)	43 of 100 (Notable)
Esmeralda Station	Australia	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Rumbulara Vineyards	Australia	Record daily precipitation	60.8 mm (2.4 in)	42 of 100 (Notable)
Yokohama	Japan	Record daily precipitation	97.8 mm (3.9 in)	42 of 100 (Notable)
Hvar	Croatia	Record high minimum temperature	19.0 C (66.2 F)	41 of 100 (Notable)
Cle Elum	United States	Record low maximum temperature	3.3 C (37.9 F)	41 of 100 (Notable)
Shirakawa	Japan	Record daily precipitation	63.8 mm (2.5 in)	40 of 100 (Notable)
Crescent City 3 NNW	United States	Record daily precipitation	40.6 mm (1.6 in)	40 of 100 (Notable)
Meeker	United States	Record high maximum temperature	23.3 C (73.9 F)	40 of 100 (Notable)
Maebashi	Japan	Record daily precipitation	71.9 mm (2.8 in)	39 of 100 (Notable)
Dayton 1 WSW	United States	Record low minimum temperature	-7.8 C (18.0 F)	39 of 100 (Notable)
Onahama	Japan	Record daily precipitation	97.8 mm (3.9 in)	38 of 100 (Notable)
Old Faithful	United States	Record high maximum temperature	18.3 C (64.9 F)	38 of 100 (Notable)
Fushiki	Japan	Record daily precipitation	90.7 mm (3.6 in)	37 of 100 (Notable)
El Salitre	Mexico	Record low minimum temperature	1.7 C (35.1 F)	37 of 100 (Notable)
Salida	United States	Record high maximum temperature	23.9 C (75.0 F)	37 of 100 (Notable)
Superior	United States	Record high maximum temperature	29.4 C (84.9 F)	37 of 100 (Notable)
Barra Do Funchal	Brazil	Record daily precipitation	66.0 mm (2.6 in)	36 of 100 (Notable)
Mexcala (Cfe)	Mexico	Record low minimum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Presa la Concepcion	Mexico	Record low minimum temperature	-3.3 C (26.1 F)	36 of 100 (Notable)
Presa Sabaneta	Mexico	Record low minimum temperature	-2.2 C (28.0 F)	35 of 100 (Notable)
Ciudad Serdan (Smn)	Mexico	Record low minimum temperature	-7.2 C (19.0 F)	35 of 100 (Notable)
Kremsmuenster	Austria	Record high minimum temperature	11.0 C (51.8 F)	34 of 100 (Routine)
Milan	Italy	Record high maximum temperature	20.8 C (69.4 F)	34 of 100 (Routine)
Omaezaki	Japan	Record daily precipitation	213.1 mm (8.4 in)	34 of 100 (Routine)
Acambaro	Mexico	Record low minimum temperature	0.0 C (32.0 F)	34 of 100 (Routine)
El Rodeo	Mexico	Record low minimum temperature	8.9 C (48.0 F)	34 of 100 (Routine)
Prosser	United States	Record low maximum temperature	5.6 C (42.1 F)	34 of 100 (Routine)
Mito	Japan	Record daily precipitation	85.9 mm (3.4 in)	33 of 100 (Routine)
Horcones	Mexico	Record low maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Apazulco	Mexico	Record low minimum temperature	13.9 C (57.0 F)	33 of 100 (Routine)
Worland	United States	Record high maximum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
Cooper Lake Project	United States	Record daily snowfall	17.8 cm (7.0 in)	33 of 100 (Routine)
Pine Creek	Australia	Record daily precipitation	40.4 mm (1.6 in)	32 of 100 (Routine)
Texas Post Office	Australia	Record daily precipitation	40.6 mm (1.6 in)	32 of 100 (Routine)
Oujda	Morocco	Record high maximum temperature	32.5 C (90.5 F)	32 of 100 (Routine)
La Caimanera (Cfe)	Mexico	Record low minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Santa Maria Yucuhiti (Cfe)	Mexico	Record low minimum temperature	10.6 C (51.1 F)	32 of 100 (Routine)
Walthill 1E	United States	Record high maximum temperature	30.0 C (86.0 F)	32 of 100 (Routine)
Chimacum 4 S	United States	Record daily precipitation	33.8 mm (1.3 in)	32 of 100 (Routine)
Major Porto	Brazil	Record daily precipitation	58.9 mm (2.3 in)	31 of 100 (Routine)
Putla de Guerrero (Cfe)	Mexico	Record low minimum temperature	10.6 C (51.1 F)	31 of 100 (Routine)
Ft Duchesne	United States	Record high maximum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
Logan Utah St UNIV	United States	Record high maximum temperature	23.3 C (73.9 F)	31 of 100 (Routine)
Kiffa	Mauritania	Record low maximum temperature	30.4 C (86.7 F)	30 of 100 (Routine)
Salvatierra	Mexico	Record low minimum temperature	0.6 C (33.1 F)	30 of 100 (Routine)

Counts by Type and Timescale

991 records

Records set or tied on 27 October 1999 by type: Highest daily maximum 238, Lowest daily maximum 58, Highest daily minimum 137, Lowest daily minimum 344, Heaviest daily rainfall 188, Heaviest daily snowfall 15, Deepest snow cover 11.

Records on 27 October 1999 by type
Record type	Records
Highest daily maximum	238
Lowest daily maximum	58
Highest daily minimum	137
Lowest daily minimum	344
Heaviest daily rainfall	188
Heaviest daily snowfall	15
Deepest snow cover	11

Records on 27 October 1999 by timescale: all-time 1, monthly 73, daily 917.

How Much Records Were Beaten By

719 broken records

Margins by which the 719 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 153.0. Ties are not counted.

Top 20 by Significance

27 October 1999

Top 20 records on 27 October 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 October 1999	Nikolo-Poloma, RU	all-time rain	77.0 mm (3.0 in)	17.0 mm (0.7 in)	46 years	75 of 100 (Major)
27 October 1999	Ocozocoautla, MX	daily rain	60.7 mm (2.4 in)	50.8 mm (2.0 in)	50 years	59 of 100 (Notable)
27 October 1999	Biskra, DZ	daily high max	37.1 C (98.8 F)	6.7 C (12.1 F)	117 years	58 of 100 (Notable)
27 October 1999	Grizzly, US	daily rain	35.1 mm (1.4 in)	22.4 mm (0.9 in)	37 years	57 of 100 (Notable)
27 October 1999	Katsuura, JP	daily rain	194.8 mm (7.7 in)	142.0 mm (5.6 in)	32 years	53 of 100 (Notable)
27 October 1999	Nikko, JP	daily rain	141.0 mm (5.6 in)	98.5 mm (3.9 in)	32 years	53 of 100 (Notable)
27 October 1999	San Andres (Isla)/S, CO	daily rain	99.6 mm (3.9 in)	66.6 mm (2.6 in)	36 years	48 of 100 (Notable)
27 October 1999	Saint Paul Is AP, US	daily snowfall	5.6 cm (2.2 in)	3.1 cm (1.2 in)	76 years	48 of 100 (Notable)
27 October 1999	Irozaki, JP	daily rain	142.0 mm (5.6 in)	90.9 mm (3.6 in)	8 years	46 of 100 (Notable)
27 October 1999	Saint Paul Is AP, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	76 years	46 of 100 (Notable)
27 October 1999	Fazenda Boa Esperanca, BR	daily rain	31.4 mm (1.2 in)	27.5 mm (1.1 in)	25 years	45 of 100 (Notable)
27 October 1999	Sao Goncalo Do Abaete, BR	daily rain	56.1 mm (2.2 in)	41.7 mm (1.6 in)	36 years	45 of 100 (Notable)
27 October 1999	Huauchinango, MX	daily low min	-1.1 C (30.0 F)	5.0 C (9.0 F)	72 years	45 of 100 (Notable)
27 October 1999	Engenho Sitio, BR	daily rain	29.6 mm (1.2 in)	24.6 mm (1.0 in)	18 years	44 of 100 (Notable)
27 October 1999	Santa Maria da Vitoria (Pcd), BR	daily rain	57.4 mm (2.3 in)	31.0 mm (1.2 in)	34 years	43 of 100 (Notable)
27 October 1999	Esmeralda Station, AU	daily rain	33.0 mm (1.3 in)	20.3 mm (0.8 in)	60 years	42 of 100 (Notable)
27 October 1999	Rumbulara Vineyards, AU	daily rain	60.8 mm (2.4 in)	23.7 mm (0.9 in)	46 years	42 of 100 (Notable)
27 October 1999	Yokohama, JP	daily rain	97.8 mm (3.9 in)	65.8 mm (2.6 in)	24 years	42 of 100 (Notable)
27 October 1999	Hvar, HR	daily high min	19.0 C (66.2 F)	0.5 C (0.9 F)	116 years	41 of 100 (Notable)
27 October 1999	Cle Elum, US	daily low max	3.3 C (37.9 F)	1.1 C (2.0 F)	98 years	41 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

1802 to 1999

Records set or tied on this calendar date in each year from 1802 to 1999. 1999 had 991 records.

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

Records on 10-27 in each year
Year	Records
1802	1
1807	1
1816	1
1831	1
1838	1
1840	1
1841	2
1847	2
1849	2
1856	2
1861	1
1866	4
1869	4
1870	2
1871	2
1873	1
1874	2
1876	1
1878	1
1880	2
1881	2
1885	2
1886	2
1887	5
1888	3
1889	1
1890	2
1892	3
1893	2
1894	2
1895	3
1896	2
1898	4
1899	14
1900	9
1901	5
1902	8
1903	23
1904	6
1905	11
1906	11
1907	9
1908	16
1909	13
1910	14
1911	20
1912	42
1913	91
1914	54
1915	65
1916	28
1917	45
1918	77
1919	74
1920	98
1921	37
1922	97
1923	63
1924	104
1925	383
1926	176
1927	521
1928	162
1929	92
1930	158
1931	241
1932	319
1933	313
1934	173
1935	266
1936	725
1937	477
1938	160
1939	836
1940	605
1941	409
1942	629
1943	479
1944	519
1945	674
1946	450
1947	551
1948	160
1949	182
1950	603
1951	269
1952	640
1953	285
1954	493
1955	578
1956	339
1957	1,116
1958	163
1959	376
1960	180
1961	428
1962	704
1963	798
1964	294
1965	284
1966	256
1967	485
1968	436
1969	532
1970	1,071
1971	1,157
1972	694
1973	719
1974	384
1975	424
1976	1,387
1977	608
1978	593
1979	553
1980	1,148
1981	1,076
1982	793
1983	707
1984	1,183
1985	592
1986	531
1987	863
1988	829
1989	1,506
1990	441
1991	1,722
1992	703
1993	667
1994	894
1995	1,238
1996	1,651
1997	2,783
1998	1,696
1999	991
2000	832
2001	1,100
2002	1,040
2003	1,669
2004	1,546
2005	897
2006	1,442
2007	950
2008	650
2009	954
2010	1,676
2011	690
2012	991
2013	706
2014	973
2015	395
2016	761
2017	582
2018	701
2019	1,364
2020	2,886
2021	536
2022	657
2023	1,668
2024	694
2025	524

Download the Data

Data for records on 1999-10-27: 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 20	673
20 to 40	30
40 to 60	8
60 to 80	3
80 to 100	2
100 to 120	1
120 to 140	0
140 to 160	2