Weather Records on 30 July 1999

1,456 weather records were set or tied worldwide on 30 July 1999. Highest significance: Placerville 3SE, US.

Key Facts for 30 July 1999

On 30 July 1999, 1,456 weather records were set or tied at long-record stations worldwide.
1,153 were record highs and 189 were record lows, counting maximum and minimum temperature.
By timescale, 28 were all-time records, 26 monthly and 1,402 daily.
Placerville 3SE set an all-time record daily precipitation of 79.5 mm (3.1 in) on 30 July 1999.
Across 168 earlier years (1794 to 2026) the same calendar date averaged 434 records.

Record Map

1,456 stations

1,456 station records on 30 July 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 July 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Placerville 3SE	United States	Record daily precipitation	79.5 mm (3.1 in)	75 of 100 (Major)
Turnu Magurele	Romania	Record daily precipitation	107.3 mm (4.2 in)	63 of 100 (Major)
Vevay	United States	Record high maximum temperature	41.1 C (106.0 F)	60 of 100 (Major)
Bryant	United States	Record daily precipitation	79.2 mm (3.1 in)	59 of 100 (Notable)
Saint Bernard	United States	Record high minimum temperature	29.4 C (84.9 F)	58 of 100 (Notable)
Hellinikon	Greece	Record daily precipitation	44.2 mm (1.7 in)	57 of 100 (Notable)
Koosharem	United States	Record low maximum temperature	15.6 C (60.1 F)	53 of 100 (Notable)
Levan	United States	Record low maximum temperature	20.0 C (68.0 F)	52 of 100 (Notable)
Marquette	United States	Record high minimum temperature	25.0 C (77.0 F)	51 of 100 (Notable)
Burgos-Villafria	Spain	Record daily precipitation	32.2 mm (1.3 in)	49 of 100 (Notable)
Marion 2 N	United States	Record high minimum temperature	26.7 C (80.1 F)	49 of 100 (Notable)
Bartow 1SE	United States	Record high minimum temperature	26.1 C (79.0 F)	48 of 100 (Notable)
Paola	United States	Record high minimum temperature	26.1 C (79.0 F)	47 of 100 (Notable)
Barnsdall	United States	Record high minimum temperature	31.7 C (89.1 F)	46 of 100 (Notable)
Ft Lauderdale	United States	Record high maximum temperature	36.1 C (97.0 F)	45 of 100 (Notable)
Albion	United States	Record high minimum temperature	25.6 C (78.1 F)	44 of 100 (Notable)
Jefferson City Wtp	United States	Record high minimum temperature	26.1 C (79.0 F)	44 of 100 (Notable)
Rockville	United States	Record high minimum temperature	25.0 C (77.0 F)	43 of 100 (Notable)
Farmerville	United States	Record high minimum temperature	26.1 C (79.0 F)	43 of 100 (Notable)
Conception	United States	Record high minimum temperature	26.7 C (80.1 F)	43 of 100 (Notable)
Tryon	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Waverly	United States	Record high minimum temperature	24.4 C (75.9 F)	43 of 100 (Notable)
Manti	United States	Record low maximum temperature	20.6 C (69.1 F)	43 of 100 (Notable)
Hayward Rs	United States	Record high maximum temperature	35.6 C (96.1 F)	43 of 100 (Notable)
Delta	United States	Record low maximum temperature	20.6 C (69.1 F)	43 of 100 (Notable)
Selma	United States	Record high minimum temperature	25.0 C (77.0 F)	42 of 100 (Notable)
Kirksville	United States	Record high minimum temperature	26.7 C (80.1 F)	42 of 100 (Notable)
Presa Taxhimay	Mexico	Record high minimum temperature	18.3 C (64.9 F)	41 of 100 (Notable)
Danville	United States	Record high minimum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Flora 5 NW	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Mt Vernon 3 NE	United States	Record high minimum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Ft Madison	United States	Record high minimum temperature	28.3 C (82.9 F)	41 of 100 (Notable)
Carrollton	United States	Record high minimum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Mexico	United States	Record high minimum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Mtn Grove 2 N	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Clarksville Wwtp	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Brillion	United States	Record daily precipitation	36.1 mm (1.4 in)	41 of 100 (Notable)
Sedgwick 5 S	United States	Record high minimum temperature	26.1 C (79.0 F)	40 of 100 (Notable)
Tuscola	United States	Record high maximum temperature	38.3 C (100.9 F)	40 of 100 (Notable)
Salem	United States	Record high minimum temperature	24.4 C (75.9 F)	40 of 100 (Notable)
Valparaiso Wtr Wks	United States	Record high minimum temperature	25.6 C (78.1 F)	40 of 100 (Notable)
Berea College	United States	Record high maximum temperature	37.8 C (100.0 F)	40 of 100 (Notable)
Ellenburg Depot	United States	Record daily precipitation	40.1 mm (1.6 in)	40 of 100 (Notable)
Westfield 2 SSE	United States	Record high maximum temperature	34.4 C (93.9 F)	40 of 100 (Notable)
Black Rock	United States	Record low maximum temperature	26.1 C (79.0 F)	40 of 100 (Notable)
Ufa	Russia	Record high minimum temperature	19.8 C (67.6 F)	39 of 100 (Notable)
Berne Wwtp	United States	Record high minimum temperature	26.1 C (79.0 F)	39 of 100 (Notable)
Keosauqua	United States	Record high maximum temperature	41.7 C (107.1 F)	39 of 100 (Notable)
Atchison	United States	Record high minimum temperature	27.8 C (82.0 F)	39 of 100 (Notable)
Beaver Dam	United States	Record high maximum temperature	40.0 C (104.0 F)	39 of 100 (Notable)
Manchester 4 W	United States	Record high maximum temperature	37.2 C (99.0 F)	39 of 100 (Notable)
Mohonk Lake	United States	Record high maximum temperature	33.9 C (93.0 F)	39 of 100 (Notable)
Louisville Intl AP	United States	Record high maximum temperature	41.1 C (106.0 F)	39 of 100 (Notable)
Allende	Mexico	Record high minimum temperature	27.8 C (82.0 F)	38 of 100 (Notable)
Laporte	United States	Record high minimum temperature	26.1 C (79.0 F)	38 of 100 (Notable)
Grand Meadow	United States	Record high minimum temperature	23.9 C (75.0 F)	38 of 100 (Notable)
Quanah 2 SW	United States	Record high minimum temperature	26.7 C (80.1 F)	38 of 100 (Notable)
Holcombe	United States	Record daily precipitation	49.3 mm (1.9 in)	38 of 100 (Notable)
Sparta	United States	Record high maximum temperature	36.7 C (98.1 F)	38 of 100 (Notable)
Viroqua	United States	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)

Counts by Type and Timescale

1,456 records

Records set or tied on 30 July 1999 by type: Highest daily maximum 536, Lowest daily maximum 75, Highest daily minimum 617, Lowest daily minimum 114, Heaviest daily rainfall 113, Heaviest daily snowfall 1.

Records on 30 July 1999 by type
Record type	Records
Highest daily maximum	536
Lowest daily maximum	75
Highest daily minimum	617
Lowest daily minimum	114
Heaviest daily rainfall	113
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 30 July 1999 by timescale: all-time 28, monthly 26, daily 1,402.

How Much Records Were Beaten By

995 broken records

Margins by which the 995 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 79.0. Ties are not counted.

Top 20 by Significance

30 July 1999

Top 20 records on 30 July 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 July 1999	Placerville 3SE, US	all-time rain	79.5 mm (3.1 in)	27.7 mm (1.1 in)	34 years	75 of 100 (Major)
30 July 1999	Turnu Magurele, RO	daily rain	107.3 mm (4.2 in)	73.3 mm (2.9 in)	57 years	63 of 100 (Major)
30 July 1999	Vevay, US	all-time high max	41.1 C (106.0 F)	0.5 C (0.9 F)	98 years	60 of 100 (Major)
30 July 1999	Bryant, US	daily rain	79.2 mm (3.1 in)	47.4 mm (1.9 in)	42 years	59 of 100 (Notable)
30 July 1999	Saint Bernard, US	all-time high min	29.4 C (84.9 F)	0.5 C (0.9 F)	91 years	58 of 100 (Notable)
30 July 1999	Hellinikon, GR	daily rain	44.2 mm (1.7 in)	44.2 mm (1.7 in)	44 years	57 of 100 (Notable)
30 July 1999	Koosharem, US	monthly low max	15.6 C (60.1 F)	1.1 C (2.0 F)	104 years	53 of 100 (Notable)
30 July 1999	Levan, US	daily low max	20.0 C (68.0 F)	5.6 C (10.1 F)	81 years	52 of 100 (Notable)
30 July 1999	Marquette, US	monthly high min	25.0 C (77.0 F)	0.6 C (1.1 F)	121 years	51 of 100 (Notable)
30 July 1999	Burgos-Villafria, ES	daily rain	32.2 mm (1.3 in)	23.7 mm (0.9 in)	38 years	49 of 100 (Notable)
30 July 1999	Marion 2 N, US	all-time high min	26.7 C (80.1 F)	0.6 C (1.1 F)	63 years	49 of 100 (Notable)
30 July 1999	Bartow 1SE, US	daily high min	26.1 C (79.0 F)	1.1 C (2.0 F)	103 years	48 of 100 (Notable)
30 July 1999	Paola, US	daily high min	26.1 C (79.0 F)	2.2 C (4.0 F)	102 years	47 of 100 (Notable)
30 July 1999	Barnsdall, US	all-time high min	31.7 C (89.1 F)	2.8 C (5.0 F)	45 years	46 of 100 (Notable)
30 July 1999	Ft Lauderdale, US	daily high max	36.1 C (97.0 F)	1.7 C (3.1 F)	84 years	45 of 100 (Notable)
30 July 1999	Albion, US	daily high min	25.6 C (78.1 F)	1.2 C (2.2 F)	102 years	44 of 100 (Notable)
30 July 1999	Jefferson City Wtp, US	daily high min	26.1 C (79.0 F)	1.7 C (3.1 F)	97 years	44 of 100 (Notable)
30 July 1999	Rockville, US	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	102 years	43 of 100 (Notable)
30 July 1999	Farmerville, US	daily high min	26.1 C (79.0 F)	1.1 C (2.0 F)	99 years	43 of 100 (Notable)
30 July 1999	Conception, US	daily high min	26.7 C (80.1 F)	1.1 C (2.0 F)	101 years	43 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

1794 to 1999

Records set or tied on this calendar date in each year from 1794 to 1999. 1999 had 1,456 records.

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

Records on 07-30 in each year
Year	Records
1794	2
1797	1
1827	1
1828	2
1829	1
1830	1
1834	1
1837	2
1838	1
1840	1
1841	1
1843	1
1854	1
1857	1
1858	2
1860	4
1863	1
1867	1
1868	1
1869	2
1870	1
1874	2
1875	1
1876	1
1877	2
1879	1
1880	2
1885	3
1886	5
1887	6
1888	5
1889	1
1890	2
1891	1
1892	1
1893	10
1894	6
1895	2
1896	2
1897	4
1898	8
1899	2
1900	4
1901	11
1902	6
1903	25
1904	17
1905	29
1906	22
1907	11
1908	23
1909	30
1910	8
1911	54
1912	21
1913	34
1914	52
1915	26
1916	150
1917	93
1918	42
1919	19
1920	188
1921	193
1922	40
1923	428
1924	80
1925	275
1926	186
1927	109
1928	210
1929	221
1930	170
1931	432
1932	275
1933	451
1934	619
1935	340
1936	452
1937	245
1938	388
1939	395
1940	562
1941	371
1942	304
1943	397
1944	289
1945	299
1946	409
1947	394
1948	489
1949	512
1950	552
1951	322
1952	581
1953	345
1954	504
1955	787
1956	506
1957	289
1958	344
1959	391
1960	793
1961	511
1962	378
1963	308
1964	483
1965	978
1966	527
1967	282
1968	530
1969	506
1970	431
1971	2,319
1972	758
1973	434
1974	569
1975	1,048
1976	590
1977	641
1978	646
1979	761
1980	962
1981	851
1982	821
1983	904
1984	997
1985	1,029
1986	952
1987	1,084
1988	826
1989	1,227
1990	795
1991	734
1992	1,003
1993	965
1994	1,631
1995	1,207
1996	1,317
1997	933
1998	1,240
1999	1,456
2000	1,030
2001	1,400
2002	1,346
2003	1,163
2004	936
2005	788
2006	1,103
2007	1,160
2008	763
2009	1,328
2010	1,331
2011	1,003
2012	731
2013	737
2014	1,199
2015	682
2016	460
2017	464
2018	1,038
2019	486
2020	763
2021	839
2022	845
2023	683
2024	705
2025	869
2026	1,001

Download the Data

Data for records on 1999-07-30: 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	953
10 to 20	22
20 to 30	11
30 to 40	4
40 to 50	2
50 to 60	1
60 to 70	0
70 to 80	2