Weather Records on 20 October 1997

949 weather records were set or tied worldwide on 20 October 1997. Highest significance: Nanango Wills St, AU.

Key Facts for 20 October 1997

On 20 October 1997, 949 weather records were set or tied at long-record stations worldwide.
318 were record highs and 368 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 37 monthly and 912 daily.
Nanango Wills St set a daily record precipitation of 53.8 mm (2.1 in) on 20 October 1997.
Across 160 earlier years (1806 to 2025) the same calendar date averaged 454 records.

Record Map

949 stations

949 station records on 20 October 1997 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 October 1997: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nanango Wills St	Australia	Record daily precipitation	53.8 mm (2.1 in)	60 of 100 (Major)
Nilo Pecanha	Brazil	Record daily precipitation	81.3 mm (3.2 in)	60 of 100 (Major)
Kingaroy Prince Street	Australia	Record daily precipitation	51.0 mm (2.0 in)	58 of 100 (Notable)
Kia Ora Sandy Ridges	Australia	Record daily precipitation	52.4 mm (2.1 in)	55 of 100 (Notable)
Wondai Post Office	Australia	Record daily precipitation	49.0 mm (1.9 in)	55 of 100 (Notable)
Englesberg Village	Australia	Record daily precipitation	49.6 mm (2.0 in)	53 of 100 (Notable)
Imbil Forestry	Australia	Record daily precipitation	56.4 mm (2.2 in)	49 of 100 (Notable)
Beja	Portugal	Record daily precipitation	43.4 mm (1.7 in)	49 of 100 (Notable)
Warragai	Australia	Record daily precipitation	49.4 mm (1.9 in)	48 of 100 (Notable)
Granja Piloto	Brazil	Record daily precipitation	102.1 mm (4.0 in)	48 of 100 (Notable)
Moyale	Kenya	Record daily precipitation	70.3 mm (2.8 in)	47 of 100 (Notable)
Itainopolis	Brazil	Record daily precipitation	51.0 mm (2.0 in)	46 of 100 (Notable)
Fazenda Veneza	Brazil	Record daily precipitation	77.0 mm (3.0 in)	45 of 100 (Notable)
Double Island Point Lighthouse	Australia	Record daily precipitation	26.0 mm (1.0 in)	44 of 100 (Notable)
Gympie	Australia	Record daily precipitation	40.0 mm (1.6 in)	44 of 100 (Notable)
Mt Tamborine Fern St	Australia	Record daily precipitation	46.6 mm (1.8 in)	44 of 100 (Notable)
Guanacevi (Smn)	Mexico	Record daily precipitation	34.8 mm (1.4 in)	43 of 100 (Notable)
Petropavlovsk-Kamchatskij	Russia	Record daily precipitation	29.5 mm (1.2 in)	43 of 100 (Notable)
Clarksdale	United States	Record daily precipitation	50.8 mm (2.0 in)	43 of 100 (Notable)
Nanango East Forest 618	Australia	Record daily precipitation	51.4 mm (2.0 in)	42 of 100 (Notable)
Spring Bluff Railway STN	Australia	Record daily precipitation	53.4 mm (2.1 in)	42 of 100 (Notable)
University of Queensland Gatto	Australia	Record daily precipitation	37.5 mm (1.5 in)	41 of 100 (Notable)
Kilkivan Post Office	Australia	Record daily precipitation	33.4 mm (1.3 in)	41 of 100 (Notable)
Nambour Bowling Club	Australia	Record daily precipitation	68.0 mm (2.7 in)	41 of 100 (Notable)
Brisbane Show Grounds	Australia	Record daily precipitation	47.2 mm (1.9 in)	41 of 100 (Notable)
Rosewood Walloon Rd	Australia	Record daily precipitation	44.0 mm (1.7 in)	40 of 100 (Notable)
Gayndah Post Office	Australia	Record daily precipitation	57.8 mm (2.3 in)	39 of 100 (Notable)
Mapleton Post Office	Australia	Record daily precipitation	62.6 mm (2.5 in)	39 of 100 (Notable)
Yangan Post Office	Australia	Record daily precipitation	32.4 mm (1.3 in)	39 of 100 (Notable)
Palizada	Mexico	Record low minimum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Ixcateopan de Tlapa	Mexico	Record low maximum temperature	20.6 C (69.1 F)	39 of 100 (Notable)
Cass Lake	United States	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Clover Valley	United States	Record high minimum temperature	6.1 C (43.0 F)	39 of 100 (Notable)
Yarraman Post Office	Australia	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Tapalpa (Smn)	Mexico	Record low minimum temperature	2.8 C (37.0 F)	38 of 100 (Notable)
Vivero la Paz	Mexico	Record low maximum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
Como	Australia	Record daily precipitation	45.0 mm (1.8 in)	37 of 100 (Notable)
Kooralgin	Australia	Record daily precipitation	38.8 mm (1.5 in)	37 of 100 (Notable)
Kandanga Upper	Australia	Record daily precipitation	57.0 mm (2.2 in)	37 of 100 (Notable)
Oakwood	Australia	Record daily precipitation	57.6 mm (2.3 in)	37 of 100 (Notable)
Jingi Jingi	Australia	Record daily precipitation	27.0 mm (1.1 in)	37 of 100 (Notable)
Holmsk	Russia	Record daily precipitation	37.1 mm (1.5 in)	37 of 100 (Notable)
Canungra Finch Road	Australia	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Palmwoods	Australia	Record daily precipitation	63.0 mm (2.5 in)	35 of 100 (Notable)
Miguel Calmon (Djalma Dutra)	Brazil	Record daily precipitation	43.7 mm (1.7 in)	35 of 100 (Notable)
Kandanga Post Office	Australia	Record daily precipitation	56.0 mm (2.2 in)	34 of 100 (Routine)
Wooroolin Post Office	Australia	Record daily precipitation	51.8 mm (2.0 in)	34 of 100 (Routine)
Irapuato	Mexico	Record low minimum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Jimna Composite	Australia	Record daily precipitation	52.0 mm (2.0 in)	33 of 100 (Routine)
Mounefontein	Australia	Record daily precipitation	52.8 mm (2.1 in)	33 of 100 (Routine)
Kokpekty	Kazakhstan	Record high maximum temperature	23.5 C (74.3 F)	33 of 100 (Routine)
Drobeta Turnu Severin	Romania	Record low minimum temperature	-1.1 C (30.0 F)	33 of 100 (Routine)
Kumbia Post Office	Australia	Record daily precipitation	49.2 mm (1.9 in)	32 of 100 (Routine)
Alderley	Australia	Record daily precipitation	54.2 mm (2.1 in)	32 of 100 (Routine)
Redlands Hrs	Australia	Record low maximum temperature	19.2 C (66.6 F)	32 of 100 (Routine)
Wamuran	Australia	Record daily precipitation	47.3 mm (1.9 in)	32 of 100 (Routine)
Presa Tepetitlan	Mexico	Record low minimum temperature	-3.3 C (26.1 F)	32 of 100 (Routine)
Corrales	Mexico	Record low minimum temperature	1.7 C (35.1 F)	32 of 100 (Routine)
San Miguel Ejutla	Mexico	Record low maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Esk Post Office	Australia	Record daily precipitation	49.0 mm (1.9 in)	31 of 100 (Routine)

Counts by Type and Timescale

949 records

Records set or tied on 20 October 1997 by type: Highest daily maximum 183, Lowest daily maximum 76, Highest daily minimum 135, Lowest daily minimum 292, Heaviest daily rainfall 255, Heaviest daily snowfall 2, Deepest snow cover 6.

Records on 20 October 1997 by type
Record type	Records
Highest daily maximum	183
Lowest daily maximum	76
Highest daily minimum	135
Lowest daily minimum	292
Heaviest daily rainfall	255
Heaviest daily snowfall	2
Deepest snow cover	6

Records on 20 October 1997 by timescale: all-time 0, monthly 37, daily 912.

How Much Records Were Beaten By

786 broken records

Margins by which the 786 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 82.0. Ties are not counted.

Top 20 by Significance

20 October 1997

Top 20 records on 20 October 1997 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 1997	Nanango Wills St, AU	daily rain	53.8 mm (2.1 in)	35.0 mm (1.4 in)	74 years	60 of 100 (Major)
20 October 1997	Nilo Pecanha, BR	daily rain	81.3 mm (3.2 in)	44.7 mm (1.8 in)	52 years	60 of 100 (Major)
20 October 1997	Kingaroy Prince Street, AU	daily rain	51.0 mm (2.0 in)	33.2 mm (1.3 in)	72 years	58 of 100 (Notable)
20 October 1997	Kia Ora Sandy Ridges, AU	daily rain	52.4 mm (2.1 in)	29.5 mm (1.2 in)	80 years	55 of 100 (Notable)
20 October 1997	Wondai Post Office, AU	daily rain	49.0 mm (1.9 in)	28.7 mm (1.1 in)	82 years	55 of 100 (Notable)
20 October 1997	Englesberg Village, AU	daily rain	49.6 mm (2.0 in)	18.4 mm (0.7 in)	97 years	53 of 100 (Notable)
20 October 1997	Imbil Forestry, AU	daily rain	56.4 mm (2.2 in)	41.2 mm (1.6 in)	36 years	49 of 100 (Notable)
20 October 1997	Beja, PT	daily rain	43.4 mm (1.7 in)	30.2 mm (1.2 in)	44 years	49 of 100 (Notable)
20 October 1997	Warragai, AU	daily rain	49.4 mm (1.9 in)	29.1 mm (1.1 in)	62 years	48 of 100 (Notable)
20 October 1997	Granja Piloto, BR	monthly rain	102.1 mm (4.0 in)	32.6 mm (1.3 in)	29 years	48 of 100 (Notable)
20 October 1997	Moyale, KE	daily rain	70.3 mm (2.8 in)	51.6 mm (2.0 in)	4 years	47 of 100 (Notable)
20 October 1997	Itainopolis, BR	daily rain	51.0 mm (2.0 in)	51.0 mm (2.0 in)	35 years	46 of 100 (Notable)
20 October 1997	Fazenda Veneza, BR	daily rain	77.0 mm (3.0 in)	72.6 mm (2.9 in)	7 years	45 of 100 (Notable)
20 October 1997	Double Island Point Lighthouse, AU	daily rain	26.0 mm (1.0 in)	13.0 mm (0.5 in)	86 years	44 of 100 (Notable)
20 October 1997	Gympie, AU	daily rain	40.0 mm (1.6 in)	18.2 mm (0.7 in)	72 years	44 of 100 (Notable)
20 October 1997	Mt Tamborine Fern St, AU	daily rain	46.6 mm (1.8 in)	9.8 mm (0.39 in)	97 years	44 of 100 (Notable)
20 October 1997	Guanacevi (Smn), MX	daily rain	34.8 mm (1.4 in)	19.8 mm (0.8 in)	40 years	43 of 100 (Notable)
20 October 1997	Petropavlovsk-Kamchatskij, RU	daily rain	29.5 mm (1.2 in)	5.0 mm (0.20 in)	101 years	43 of 100 (Notable)
20 October 1997	Clarksdale, US	daily rain	50.8 mm (2.0 in)	16.0 mm (0.6 in)	79 years	43 of 100 (Notable)
20 October 1997	Nanango East Forest 618, AU	daily rain	51.4 mm (2.0 in)	38.2 mm (1.5 in)	38 years	42 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

1806 to 1997

Records set or tied on this calendar date in each year from 1806 to 1997. 1997 had 949 records.

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

Records on 10-20 in each year
Year	Records
1806	1
1835	1
1844	1
1846	1
1847	2
1851	1
1852	1
1858	1
1863	2
1864	2
1866	3
1867	1
1868	2
1872	2
1874	2
1875	3
1876	2
1877	1
1878	1
1880	3
1881	2
1884	1
1885	1
1886	1
1887	1
1888	6
1891	4
1892	4
1893	1
1894	3
1895	4
1896	9
1897	2
1898	7
1899	1
1900	8
1901	7
1902	5
1903	9
1904	13
1905	22
1906	28
1907	32
1908	26
1909	17
1910	31
1911	16
1912	6
1913	38
1914	16
1915	20
1916	72
1917	201
1918	34
1919	19
1920	81
1921	68
1922	83
1923	96
1924	182
1925	247
1926	147
1927	283
1928	92
1929	129
1930	672
1931	125
1932	331
1933	675
1934	422
1935	390
1936	370
1937	189
1938	231
1939	367
1940	757
1941	459
1942	152
1943	501
1944	288
1945	363
1946	310
1947	1,494
1948	320
1949	1,084
1950	619
1951	279
1952	520
1953	1,057
1954	262
1955	529
1956	283
1957	440
1958	461
1959	451
1960	671
1961	479
1962	733
1963	765
1964	598
1965	340
1966	857
1967	511
1968	244
1969	607
1970	710
1971	606
1972	1,724
1973	878
1974	1,122
1975	587
1976	1,304
1977	467
1978	508
1979	1,647
1980	350
1981	1,083
1982	1,191
1983	944
1984	1,562
1985	835
1986	823
1987	590
1988	737
1989	2,092
1990	609
1991	971
1992	1,174
1993	1,238
1994	650
1995	703
1996	1,417
1997	949
1998	683
1999	603
2000	737
2001	589
2002	985
2003	1,761
2004	1,861
2005	1,092
2006	1,170
2007	923
2008	477
2009	786
2010	539
2011	785
2012	945
2013	592
2014	851
2015	523
2016	947
2017	602
2018	394
2019	744
2020	1,010
2021	900
2022	834
2023	1,468
2024	707
2025	326

Download the Data

Data for records on 1997-10-20: 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	735
20 to 40	42
40 to 60	7
60 to 80	1
80 to 100	1