Weather Records on 16 August 1997

1,284 weather records were set or tied worldwide on 16 August 1997. Highest significance: Ottawa, US.

Key Facts for 16 August 1997

On 16 August 1997, 1,284 weather records were set or tied at long-record stations worldwide.
851 were record highs and 273 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 61 monthly and 1,218 daily.
Ottawa set a monthly record daily precipitation of 123.2 mm (4.9 in) on 16 August 1997.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

1,284 stations

1,284 station records on 16 August 1997 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 16 August 1997: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ottawa	United States	Record daily precipitation	123.2 mm (4.9 in)	61 of 100 (Major)
Mystic Lake	United States	Record daily precipitation	40.9 mm (1.6 in)	55 of 100 (Notable)
Dillon U of Montana Western	United States	Record daily precipitation	25.7 mm (1.0 in)	54 of 100 (Notable)
Yellowtail Dam	United States	Record daily precipitation	44.5 mm (1.8 in)	50 of 100 (Notable)
Liepaja	Latvia	Record low minimum temperature	6.6 C (43.9 F)	49 of 100 (Notable)
Nye #2	United States	Record daily precipitation	27.2 mm (1.1 in)	49 of 100 (Notable)
Vestervig	Denmark	Record high minimum temperature	18.4 C (65.1 F)	48 of 100 (Notable)
Laurel 3 W	United States	Record high maximum temperature	38.3 C (100.9 F)	48 of 100 (Notable)
Kitadaito	Japan	Record daily precipitation	244.0 mm (9.6 in)	47 of 100 (Notable)
Karlshamn	Sweden	Record high minimum temperature	19.2 C (66.6 F)	46 of 100 (Notable)
Angleton 2 W	United States	Record high minimum temperature	27.8 C (82.0 F)	45 of 100 (Notable)
Malvern	United States	Record high minimum temperature	25.6 C (78.1 F)	44 of 100 (Notable)
Lowell Wwtp	United States	Record daily precipitation	75.7 mm (3.0 in)	44 of 100 (Notable)
Norris Madison Pwr House	United States	Record daily precipitation	29.0 mm (1.1 in)	44 of 100 (Notable)
Kristianstad	Sweden	Record high minimum temperature	18.4 C (65.1 F)	43 of 100 (Notable)
Emory	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Rennes-St Jacques	France	Record daily precipitation	50.2 mm (2.0 in)	42 of 100 (Notable)
Hagerstown 1E	United States	Record high maximum temperature	37.8 C (100.0 F)	42 of 100 (Notable)
Monticello	United States	Record high minimum temperature	30.0 C (86.0 F)	42 of 100 (Notable)
Midland	United States	Record low maximum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Skegness	United Kingdom	Record high minimum temperature	18.7 C (65.7 F)	40 of 100 (Notable)
Galva	United States	Record daily precipitation	120.7 mm (4.8 in)	40 of 100 (Notable)
Roberts 1 W	United States	Record daily precipitation	49.8 mm (2.0 in)	40 of 100 (Notable)
Springview 2NW	United States	Record low minimum temperature	7.2 C (45.0 F)	40 of 100 (Notable)
Pemberton	United States	Record high minimum temperature	26.1 C (79.0 F)	40 of 100 (Notable)
Oberlin	United States	Record daily precipitation	47.8 mm (1.9 in)	40 of 100 (Notable)
Nordby (Fano)	Denmark	Record high minimum temperature	18.6 C (65.5 F)	39 of 100 (Notable)
Kentfield	United States	Record high minimum temperature	18.9 C (66.0 F)	39 of 100 (Notable)
Laporte	United States	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
Red Lodge	United States	Record low maximum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Holtwood	United States	Record high maximum temperature	37.2 C (99.0 F)	39 of 100 (Notable)
Pte de Chassiron	France	Record high minimum temperature	21.0 C (69.8 F)	38 of 100 (Notable)
Glenn Dale Bell STN	United States	Record high maximum temperature	40.0 C (104.0 F)	38 of 100 (Notable)
Williams	United States	Record high minimum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Grafton	United States	Record low maximum temperature	18.9 C (66.0 F)	37 of 100 (Notable)
Bolivar Wtr Wks	United States	Record high minimum temperature	24.4 C (75.9 F)	37 of 100 (Notable)
Santaquin Chlorinator	United States	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
El Platanito	Mexico	Record low minimum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
New Holland	United States	Record high minimum temperature	26.1 C (79.0 F)	36 of 100 (Notable)
Cleveland	United States	Record daily precipitation	36.3 mm (1.4 in)	36 of 100 (Notable)
Ocozocoautla	Mexico	Record low minimum temperature	13.3 C (55.9 F)	35 of 100 (Notable)
Moore Haven Lock 1	United States	Record high maximum temperature	35.6 C (96.1 F)	35 of 100 (Notable)
Salina 3 W	United States	Record daily precipitation	43.9 mm (1.7 in)	35 of 100 (Notable)
Oelrichs	United States	Record low maximum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Deseret	United States	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Puerto Adolfo Lopez Mateos	Mexico	Record daily precipitation	31.8 mm (1.3 in)	34 of 100 (Routine)
Cinco de Mayo	Mexico	Record daily precipitation	34.8 mm (1.4 in)	34 of 100 (Routine)
Atlatlahuacan	Mexico	Record daily precipitation	56.6 mm (2.2 in)	34 of 100 (Routine)
Suchixtlahuaca -Quiotep-	Mexico	Record daily precipitation	59.9 mm (2.4 in)	34 of 100 (Routine)
Roi Et	Thailand	Record high maximum temperature	38.8 C (101.8 F)	34 of 100 (Routine)
Morris 1NW	United States	Record daily precipitation	28.2 mm (1.1 in)	34 of 100 (Routine)
Deadwood	United States	Record low maximum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Conroe	United States	Record high minimum temperature	25.6 C (78.1 F)	34 of 100 (Routine)
Pavlodar	Kazakhstan	Record high maximum temperature	37.1 C (98.8 F)	33 of 100 (Routine)
Las Cruces	Mexico	Record daily precipitation	47.8 mm (1.9 in)	33 of 100 (Routine)
Sosva	Russia	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Anadyr	Russia	Record high minimum temperature	12.4 C (54.3 F)	33 of 100 (Routine)
Chestertown	United States	Record high maximum temperature	38.3 C (100.9 F)	33 of 100 (Routine)
Columbus	United States	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
Cape May 2 NW	United States	Record high maximum temperature	35.6 C (96.1 F)	33 of 100 (Routine)

Counts by Type and Timescale

1,284 records

Records set or tied on 16 August 1997 by type: Highest daily maximum 291, Lowest daily maximum 169, Highest daily minimum 560, Lowest daily minimum 104, Heaviest daily rainfall 160.

Records on 16 August 1997 by type
Record type	Records
Highest daily maximum	291
Lowest daily maximum	169
Highest daily minimum	560
Lowest daily minimum	104
Heaviest daily rainfall	160
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 16 August 1997 by timescale: all-time 5, monthly 61, daily 1,218.

How Much Records Were Beaten By

870 broken records

Margins by which the 870 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.0. Ties are not counted.

Top 20 by Significance

16 August 1997

Top 20 records on 16 August 1997 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 August 1997	Ottawa, US	monthly rain	123.2 mm (4.9 in)	52.1 mm (2.1 in)	22 years	61 of 100 (Major)
16 August 1997	Mystic Lake, US	daily rain	40.9 mm (1.6 in)	19.3 mm (0.8 in)	36 years	55 of 100 (Notable)
16 August 1997	Dillon U of Montana Western, US	daily rain	25.7 mm (1.0 in)	10.2 mm (0.4 in)	84 years	54 of 100 (Notable)
16 August 1997	Yellowtail Dam, US	daily rain	44.5 mm (1.8 in)	34.3 mm (1.4 in)	16 years	50 of 100 (Notable)
16 August 1997	Liepaja, LV	daily low min	6.6 C (43.9 F)	2.3 C (4.1 F)	100 years	49 of 100 (Notable)
16 August 1997	Nye #2, US	monthly rain	27.2 mm (1.1 in)	6.9 mm (0.27 in)	47 years	49 of 100 (Notable)
16 August 1997	Vestervig, DK	daily high min	18.4 C (65.1 F)	1.8 C (3.2 F)	114 years	48 of 100 (Notable)
16 August 1997	Laurel 3 W, US	daily high max	38.3 C (100.9 F)	3.3 C (5.9 F)	96 years	48 of 100 (Notable)
16 August 1997	Kitadaito, JP	monthly rain	244.0 mm (9.6 in)	71.0 mm (2.8 in)	10 years	47 of 100 (Notable)
16 August 1997	Karlshamn, SE	daily high min	19.2 C (66.6 F)	2.2 C (4.0 F)	96 years	46 of 100 (Notable)
16 August 1997	Angleton 2 W, US	monthly high min	27.8 C (82.0 F)	0.6 C (1.1 F)	74 years	45 of 100 (Notable)
16 August 1997	Malvern, US	daily high min	25.6 C (78.1 F)	1.2 C (2.2 F)	105 years	44 of 100 (Notable)
16 August 1997	Lowell Wwtp, US	daily rain	75.7 mm (3.0 in)	51.3 mm (2.0 in)	27 years	44 of 100 (Notable)
16 August 1997	Norris Madison Pwr House, US	daily rain	29.0 mm (1.1 in)	14.5 mm (0.6 in)	36 years	44 of 100 (Notable)
16 August 1997	Kristianstad, SE	daily high min	18.4 C (65.1 F)	1.4 C (2.5 F)	96 years	43 of 100 (Notable)
16 August 1997	Emory, US	daily high min	25.6 C (78.1 F)	1.2 C (2.2 F)	96 years	43 of 100 (Notable)
16 August 1997	Rennes-St Jacques, FR	monthly rain	50.2 mm (2.0 in)	14.8 mm (0.6 in)	0 years	42 of 100 (Notable)
16 August 1997	Hagerstown 1E, US	daily high max	37.8 C (100.0 F)	1.7 C (3.1 F)	96 years	42 of 100 (Notable)
16 August 1997	Monticello, US	monthly high min	30.0 C (86.0 F)	0.6 C (1.1 F)	72 years	42 of 100 (Notable)
16 August 1997	Midland, US	daily low max	20.0 C (68.0 F)	0.6 C (1.1 F)	100 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

1793 to 1997

Records set or tied on this calendar date in each year from 1793 to 1997. 1997 had 1,284 records.

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

Records on 08-16 in each year
Year	Records
1793	1
1802	2
1811	1
1827	1
1833	1
1835	1
1838	1
1841	1
1844	2
1850	1
1856	1
1861	2
1862	1
1863	1
1868	2
1869	1
1871	1
1873	1
1875	2
1876	5
1878	1
1879	3
1880	2
1882	2
1883	2
1885	4
1886	1
1887	2
1888	5
1890	5
1891	2
1893	6
1894	1
1895	4
1896	5
1897	4
1898	6
1899	2
1900	3
1901	7
1902	5
1903	12
1904	9
1905	9
1906	11
1907	20
1908	31
1909	25
1910	14
1911	16
1912	30
1913	88
1914	10
1915	32
1916	147
1917	27
1918	72
1919	13
1920	144
1921	42
1922	148
1923	135
1924	139
1925	92
1926	165
1927	314
1928	207
1929	509
1930	158
1931	336
1932	348
1933	260
1934	504
1935	496
1936	728
1937	818
1938	700
1939	340
1940	287
1941	371
1942	447
1943	579
1944	467
1945	370
1946	313
1947	477
1948	342
1949	345
1950	305
1951	423
1952	552
1953	558
1954	648
1955	558
1956	413
1957	402
1958	1,013
1959	354
1960	518
1961	866
1962	423
1963	897
1964	831
1965	565
1966	433
1967	829
1968	824
1969	684
1970	386
1971	641
1972	997
1973	592
1974	689
1975	766
1976	1,153
1977	831
1978	835
1979	1,698
1980	855
1981	766
1982	516
1983	1,251
1984	662
1985	1,063
1986	811
1987	1,120
1988	1,594
1989	730
1990	702
1991	601
1992	2,027
1993	820
1994	1,075
1995	1,542
1996	678
1997	1,284
1998	865
1999	697
2000	873
2001	1,136
2002	1,258
2003	1,220
2004	1,239
2005	813
2006	894
2007	1,442
2008	1,183
2009	1,128
2010	1,239
2011	896
2012	670
2013	770
2014	640
2015	841
2016	786
2017	672
2018	412
2019	430
2020	1,382
2021	825
2022	1,145
2023	1,354
2024	765
2025	661
2026	661

Download the Data

Data for records on 1997-08-16: 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 10	814
10 to 20	38
20 to 30	9
30 to 40	5
40 to 50	1
50 to 60	2
60 to 70	0
70 to 80	1