Weather Records on 22 August 1999

756 weather records were set or tied worldwide on 22 August 1999. Highest significance: Hambantota, LK.

Key Facts for 22 August 1999

On 22 August 1999, 756 weather records were set or tied at long-record stations worldwide.
379 were record highs and 242 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 26 monthly and 726 daily.
Hambantota set an all-time record high maximum temperature of 39.2 C (102.6 F) on 22 August 1999.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 435 records.

Record Map

756 stations

756 station records on 22 August 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 22 August 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hambantota	Sri Lanka	Record high maximum temperature	39.2 C (102.6 F)	70 of 100 (Major)
Catarina	United States	Record daily precipitation	160.8 mm (6.3 in)	56 of 100 (Notable)
Welder Wildlife Foundation	United States	Record daily precipitation	155.7 mm (6.1 in)	53 of 100 (Notable)
Siliguri	India	Record daily precipitation	160.0 mm (6.3 in)	52 of 100 (Notable)
Hull	United Kingdom	Record low minimum temperature	3.6 C (38.5 F)	52 of 100 (Notable)
La Tinaja	Mexico	Record high maximum temperature	33.9 C (93.0 F)	51 of 100 (Notable)
Lagos de Moreno (Dge)	Mexico	Record daily precipitation	55.6 mm (2.2 in)	51 of 100 (Notable)
Kailua 446	United States	Record low maximum temperature	20.0 C (68.0 F)	50 of 100 (Notable)
Corpus Christi	United States	Record daily precipitation	115.8 mm (4.6 in)	45 of 100 (Notable)
Nicosia	Cyprus	Record high minimum temperature	25.7 C (78.3 F)	44 of 100 (Notable)
Stillwater 1 SE	United States	Record daily precipitation	59.2 mm (2.3 in)	44 of 100 (Notable)
Middletown 2 NW	United States	Record low maximum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Ramnicu Valcea	Romania	Record daily precipitation	90.5 mm (3.6 in)	43 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record high minimum temperature	23.9 C (75.0 F)	43 of 100 (Notable)
Durham	United Kingdom	Record low minimum temperature	2.7 C (36.9 F)	43 of 100 (Notable)
Port Isabel	United States	Record daily precipitation	85.1 mm (3.4 in)	43 of 100 (Notable)
Crookston NW Exp STN	United States	Record daily precipitation	40.6 mm (1.6 in)	42 of 100 (Notable)
Monticello	United States	Record high minimum temperature	26.1 C (79.0 F)	42 of 100 (Notable)
Heraklion	Greece	Record high maximum temperature	37.2 C (99.0 F)	41 of 100 (Notable)
Huetamo	Mexico	Record low maximum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Sidney 6NNW	United States	Record daily precipitation	41.1 mm (1.6 in)	41 of 100 (Notable)
Charcas	Mexico	Record daily precipitation	51.6 mm (2.0 in)	40 of 100 (Notable)
Amherst	United States	Record daily precipitation	36.8 mm (1.4 in)	40 of 100 (Notable)
Tamiami Trail 40 Mi Bend	United States	Record daily precipitation	88.9 mm (3.5 in)	39 of 100 (Notable)
Presa Taxhimay	Mexico	Record high minimum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Pozos	Mexico	Record daily precipitation	87.4 mm (3.4 in)	37 of 100 (Notable)
Jal	United States	Record high minimum temperature	26.7 C (80.1 F)	37 of 100 (Notable)
Vivero la Paz	Mexico	Record daily precipitation	47.0 mm (1.9 in)	36 of 100 (Notable)
Alamogordo	United States	Record high minimum temperature	25.6 C (78.1 F)	36 of 100 (Notable)
Tecolotlan (Dge)	Mexico	Record low maximum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
Allende	Mexico	Record high minimum temperature	28.9 C (84.0 F)	35 of 100 (Notable)
Santa Cruz de Alaya	Mexico	Record low minimum temperature	18.3 C (64.9 F)	35 of 100 (Notable)
Buffalo 2NE	United States	Record daily precipitation	116.3 mm (4.6 in)	35 of 100 (Notable)
Ocozocoautla	Mexico	Record daily precipitation	69.1 mm (2.7 in)	34 of 100 (Routine)
Urepetiro	Mexico	Record low maximum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
El Novillo (Cfe)	Mexico	Record daily precipitation	62.5 mm (2.5 in)	34 of 100 (Routine)
Kentfield	United States	Record high maximum temperature	37.8 C (100.0 F)	34 of 100 (Routine)
Holyoke	United States	Record daily precipitation	32.0 mm (1.3 in)	34 of 100 (Routine)
Port Jervis	United States	Record low maximum temperature	17.8 C (64.0 F)	34 of 100 (Routine)
W Pt	United States	Record low maximum temperature	16.7 C (62.1 F)	34 of 100 (Routine)
Ft Morgan	United States	Record high minimum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
U of Mn St Paul	United States	Record daily precipitation	56.4 mm (2.2 in)	33 of 100 (Routine)
Neshaminy Falls	United States	Record low maximum temperature	19.4 C (66.9 F)	33 of 100 (Routine)
Chapman Rch	United States	Record daily precipitation	127.0 mm (5.0 in)	33 of 100 (Routine)
Tepexpan	Mexico	Record high maximum temperature	35.6 C (96.1 F)	32 of 100 (Routine)
Derbent	Russia	Record high maximum temperature	34.0 C (93.2 F)	32 of 100 (Routine)
Buxton	United Kingdom	Record low minimum temperature	2.5 C (36.5 F)	32 of 100 (Routine)
Falls Village	United States	Record low maximum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Owatonna	United States	Record daily precipitation	58.9 mm (2.3 in)	32 of 100 (Routine)
Little Falls	United States	Record low maximum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Mohonk Lake	United States	Record low maximum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Cornwall	United States	Record low maximum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Holmsk	Russia	Record daily precipitation	52.8 mm (2.1 in)	31 of 100 (Routine)
Los Gatos	United States	Record high maximum temperature	36.7 C (98.1 F)	31 of 100 (Routine)
St Paul	United States	Record daily precipitation	62.5 mm (2.5 in)	31 of 100 (Routine)
Low Head (Comparison)	Australia	Record high maximum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Anqing	China	Record daily precipitation	100.9 mm (4.0 in)	30 of 100 (Routine)
Dalatangi	Iceland	Record high minimum temperature	11.0 C (51.8 F)	30 of 100 (Routine)
Etla	Mexico	Record low minimum temperature	8.9 C (48.0 F)	30 of 100 (Routine)
Lambertville	United States	Record low maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)

Counts by Type and Timescale

756 records

Records set or tied on 22 August 1999 by type: Highest daily maximum 204, Lowest daily maximum 107, Highest daily minimum 175, Lowest daily minimum 135, Heaviest daily rainfall 135.

Records on 22 August 1999 by type
Record type	Records
Highest daily maximum	204
Lowest daily maximum	107
Highest daily minimum	175
Lowest daily minimum	135
Heaviest daily rainfall	135
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 22 August 1999 by timescale: all-time 4, monthly 26, daily 726.

How Much Records Were Beaten By

548 broken records

Margins by which the 548 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 160.8. Ties are not counted.

Top 20 by Significance

22 August 1999

Top 20 records on 22 August 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 August 1999	Hambantota, LK	all-time high max	39.2 C (102.6 F)	2.0 C (3.6 F)	118 years	70 of 100 (Major)
22 August 1999	Catarina, US	daily rain	160.8 mm (6.3 in)	160.8 mm (6.3 in)	40 years	56 of 100 (Notable)
22 August 1999	Welder Wildlife Foundation, US	monthly rain	155.7 mm (6.1 in)	76.2 mm (3.0 in)	1 year	53 of 100 (Notable)
22 August 1999	Siliguri, IN	daily rain	160.0 mm (6.3 in)	70.3 mm (2.8 in)	64 years	52 of 100 (Notable)
22 August 1999	Hull, GB	daily low min	3.6 C (38.5 F)	4.2 C (7.6 F)	86 years	52 of 100 (Notable)
22 August 1999	La Tinaja, MX	daily high max	33.9 C (93.0 F)	8.9 C (16.0 F)	26 years	51 of 100 (Notable)
22 August 1999	Lagos de Moreno (Dge), MX	daily rain	55.6 mm (2.2 in)	32.7 mm (1.3 in)	54 years	51 of 100 (Notable)
22 August 1999	Kailua 446, US	monthly low max	20.0 C (68.0 F)	0.6 C (1.1 F)	88 years	50 of 100 (Notable)
22 August 1999	Corpus Christi, US	daily rain	115.8 mm (4.6 in)	95.5 mm (3.8 in)	2 years	45 of 100 (Notable)
22 August 1999	Nicosia, CY	daily high min	25.7 C (78.3 F)	1.3 C (2.3 F)	105 years	44 of 100 (Notable)
22 August 1999	Stillwater 1 SE, US	daily rain	59.2 mm (2.3 in)	17.5 mm (0.7 in)	80 years	44 of 100 (Notable)
22 August 1999	Middletown 2 NW, US	daily low max	19.4 C (66.9 F)	1.7 C (3.1 F)	96 years	44 of 100 (Notable)
22 August 1999	Ramnicu Valcea, RO	monthly rain	90.5 mm (3.6 in)	21.5 mm (0.8 in)	32 years	43 of 100 (Notable)
22 August 1999	Mayaguez City, PR	daily high min	23.9 C (75.0 F)	0.6 C (1.1 F)	97 years	43 of 100 (Notable)
22 August 1999	Durham, GB	daily low min	2.7 C (36.9 F)	1.0 C (1.8 F)	111 years	43 of 100 (Notable)
22 August 1999	Port Isabel, US	daily rain	85.1 mm (3.4 in)	28.2 mm (1.1 in)	54 years	43 of 100 (Notable)
22 August 1999	Crookston NW Exp STN, US	daily rain	40.6 mm (1.6 in)	3.5 mm (0.14 in)	105 years	42 of 100 (Notable)
22 August 1999	Monticello, US	daily high min	26.1 C (79.0 F)	1.7 C (3.1 F)	89 years	42 of 100 (Notable)
22 August 1999	Heraklion, GR	daily high max	37.2 C (99.0 F)	5.2 C (9.4 F)	40 years	41 of 100 (Notable)
22 August 1999	Huetamo, MX	daily low max	23.9 C (75.0 F)	3.3 C (5.9 F)	72 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 756 records.

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

Records on 08-22 in each year
Year	Records
1802	2
1803	1
1805	1
1812	1
1816	1
1835	1
1839	2
1843	1
1846	2
1849	1
1850	1
1853	1
1857	1
1863	1
1864	1
1867	1
1868	1
1869	1
1870	4
1872	1
1875	1
1876	3
1877	3
1878	2
1882	1
1883	1
1884	1
1885	1
1886	1
1887	2
1888	2
1889	3
1891	2
1892	6
1893	3
1894	7
1895	6
1896	2
1897	4
1898	6
1899	5
1900	1
1901	5
1902	6
1903	3
1904	8
1905	7
1906	24
1907	7
1908	29
1909	5
1910	19
1911	20
1912	39
1913	30
1914	18
1915	31
1916	75
1917	47
1918	85
1919	18
1920	60
1921	64
1922	44
1923	279
1924	148
1925	219
1926	144
1927	154
1928	134
1929	240
1930	276
1931	388
1932	222
1933	367
1934	234
1935	337
1936	954
1937	421
1938	501
1939	517
1940	503
1941	249
1942	500
1943	517
1944	526
1945	475
1946	410
1947	1,034
1948	297
1949	570
1950	460
1951	452
1952	372
1953	348
1954	466
1955	553
1956	785
1957	371
1958	511
1959	547
1960	612
1961	562
1962	329
1963	419
1964	686
1965	423
1966	830
1967	404
1968	1,091
1969	727
1970	368
1971	1,021
1972	436
1973	611
1974	628
1975	597
1976	722
1977	655
1978	529
1979	547
1980	640
1981	795
1982	912
1983	1,366
1984	739
1985	793
1986	1,073
1987	801
1988	1,133
1989	753
1990	808
1991	808
1992	994
1993	845
1994	803
1995	1,002
1996	942
1997	1,381
1998	1,016
1999	756
2000	867
2001	940
2002	1,385
2003	1,550
2004	1,029
2005	887
2006	832
2007	1,801
2008	869
2009	1,347
2010	1,397
2011	1,255
2012	831
2013	450
2014	911
2015	529
2016	730
2017	537
2018	752
2019	558
2020	1,041
2021	683
2022	781
2023	1,525
2024	803
2025	1,359
2026	992

Download the Data

Data for records on 1999-08-22: 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 25	533
25 to 50	11
50 to 75	1
75 to 100	2
100 to 125	0
125 to 150	0
150 to 175	1