Weather Records on 4 August 1991

769 weather records were set or tied worldwide on 4 August 1991. Highest significance: Parker 6 E, US.

Key Facts for 4 August 1991

On 4 August 1991, 769 weather records were set or tied at long-record stations worldwide.
364 were record highs and 252 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 20 monthly and 747 daily.
Parker 6 E set a daily record precipitation of 63.2 mm (2.5 in) on 4 August 1991.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 439 records.

Record Map

769 stations

769 station records on 4 August 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Parker 6 E	United States	Record daily precipitation	63.2 mm (2.5 in)	65 of 100 (Major)
Saltville 1N	United States	Record daily precipitation	46.0 mm (1.8 in)	56 of 100 (Notable)
Pagosa Springs 1SE	United States	Record daily precipitation	40.6 mm (1.6 in)	55 of 100 (Notable)
Minneapolis	United States	Record daily precipitation	59.2 mm (2.3 in)	53 of 100 (Notable)
Edgartown	United States	Record daily precipitation	118.4 mm (4.7 in)	50 of 100 (Notable)
Humansdorp (Pol)	South Africa	Record daily precipitation	27.5 mm (1.1 in)	49 of 100 (Notable)
Lincoln 1 SE	United States	Record daily precipitation	58.4 mm (2.3 in)	49 of 100 (Notable)
Towanda 1 S	United States	Record daily precipitation	43.9 mm (1.7 in)	48 of 100 (Notable)
Cuddalore	India	Record daily precipitation	88.6 mm (3.5 in)	46 of 100 (Notable)
Snowville	United States	Record high minimum temperature	21.1 C (70.0 F)	46 of 100 (Notable)
Atil	Mexico	Record low minimum temperature	11.7 C (53.1 F)	45 of 100 (Notable)
Tonala (Dge)	Mexico	Record daily precipitation	105.2 mm (4.1 in)	42 of 100 (Notable)
Walgett Council Depot	Australia	Record high maximum temperature	27.4 C (81.3 F)	41 of 100 (Notable)
Scott City	United States	Record daily precipitation	28.7 mm (1.1 in)	41 of 100 (Notable)
Bourke Post Office	Australia	Record high maximum temperature	30.0 C (86.0 F)	40 of 100 (Notable)
Los Gatos	United States	Record low maximum temperature	20.0 C (68.0 F)	40 of 100 (Notable)
Healy	United States	Record daily precipitation	41.9 mm (1.6 in)	40 of 100 (Notable)
Ransom 2NE	United States	Record daily precipitation	56.6 mm (2.2 in)	39 of 100 (Notable)
Perryton	United States	Record daily precipitation	46.5 mm (1.8 in)	39 of 100 (Notable)
Hagerstown	United States	Record high minimum temperature	22.8 C (73.0 F)	38 of 100 (Notable)
Bemidji	United States	Record low maximum temperature	18.3 C (64.9 F)	38 of 100 (Notable)
Wuhan	China	Record daily precipitation	82.5 mm (3.2 in)	37 of 100 (Notable)
Alton 1 W	United States	Record low maximum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Taos	United States	Record low maximum temperature	19.4 C (66.9 F)	37 of 100 (Notable)
Sonoma	United States	Record low maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Clear Lake	United States	Record low maximum temperature	21.7 C (71.1 F)	36 of 100 (Notable)
Orlinga	Russia	Record daily precipitation	27.4 mm (1.1 in)	35 of 100 (Notable)
Santa Paula	United States	Record low minimum temperature	6.7 C (44.1 F)	35 of 100 (Notable)
Socorro	United States	Record low maximum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
Alexandria	United States	Record low maximum temperature	22.8 C (73.0 F)	35 of 100 (Notable)
Canton	United States	Record low maximum temperature	21.7 C (71.1 F)	35 of 100 (Notable)
Green Rvr	United States	Record low maximum temperature	23.9 C (75.0 F)	35 of 100 (Notable)
Bajandaj	Russia	Record daily precipitation	37.0 mm (1.5 in)	34 of 100 (Routine)
Byssa	Russia	Record daily precipitation	84.9 mm (3.3 in)	34 of 100 (Routine)
Napa State Hospital	United States	Record low maximum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Blanca 4 NW	United States	Record high minimum temperature	11.7 C (53.1 F)	34 of 100 (Routine)
Tibooburra Post Office	Australia	Record high minimum temperature	11.5 C (52.7 F)	33 of 100 (Routine)
Hassleby	Sweden	Record daily precipitation	26.2 mm (1.0 in)	33 of 100 (Routine)
Alcobaca	Brazil	Record daily precipitation	56.4 mm (2.2 in)	32 of 100 (Routine)
Quitupan	Mexico	Record high maximum temperature	33.9 C (93.0 F)	32 of 100 (Routine)
Ingenio Catmis	Mexico	Record low minimum temperature	16.1 C (61.0 F)	32 of 100 (Routine)
Bogorodskoe	Russia	Record low minimum temperature	0.0 C (32.0 F)	32 of 100 (Routine)
Bartow 1SE	United States	Record high maximum temperature	37.2 C (99.0 F)	32 of 100 (Routine)
Hachita 1W	United States	Record low maximum temperature	27.2 C (81.0 F)	32 of 100 (Routine)
Pearce - Sunsites	United States	Record low minimum temperature	11.1 C (52.0 F)	31 of 100 (Routine)
Caldwell	United States	Record high minimum temperature	21.1 C (70.0 F)	31 of 100 (Routine)
Seward	United States	Record low maximum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
Ochoco Rs	United States	Record high minimum temperature	13.9 C (57.0 F)	31 of 100 (Routine)
Thompson Welcome Ctr	United States	Record low minimum temperature	10.0 C (50.0 F)	31 of 100 (Routine)
Archer	United States	Record low maximum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Atlantic City Marina	United States	Record high minimum temperature	25.0 C (77.0 F)	31 of 100 (Routine)
Ika	Russia	Record daily precipitation	30.0 mm (1.2 in)	30 of 100 (Routine)
Robertsdale	United States	Record high minimum temperature	24.4 C (75.9 F)	30 of 100 (Routine)
Saint Helena	United States	Record low maximum temperature	22.2 C (72.0 F)	30 of 100 (Routine)
Grand Rapids Forestry Lab	United States	Record low maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Itasca UNIV of Minn	United States	Record low maximum temperature	17.8 C (64.0 F)	29 of 100 (Routine)
Pelton Dam	United States	Record high minimum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Hambantota	Sri Lanka	Record high minimum temperature	26.4 C (79.5 F)	28 of 100 (Routine)
Pohnpei WSO	Federated States of Micronesia	Record high maximum temperature	34.4 C (93.9 F)	28 of 100 (Routine)
El Barril	Mexico	Record low minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)

Counts by Type and Timescale

769 records

Records set or tied on 4 August 1991 by type: Highest daily maximum 158, Lowest daily maximum 195, Highest daily minimum 206, Lowest daily minimum 57, Heaviest daily rainfall 153.

Records on 4 August 1991 by type
Record type	Records
Highest daily maximum	158
Lowest daily maximum	195
Highest daily minimum	206
Lowest daily minimum	57
Heaviest daily rainfall	153
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 1991 by timescale: all-time 2, monthly 20, daily 747.

How Much Records Were Beaten By

584 broken records

Margins by which the 584 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.2. Ties are not counted.

Top 20 by Significance

4 August 1991

Top 20 records on 4 August 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 1991	Parker 6 E, US	daily rain	63.2 mm (2.5 in)	39.3 mm (1.5 in)	60 years	65 of 100 (Major)
4 August 1991	Saltville 1N, US	daily rain	46.0 mm (1.8 in)	32.5 mm (1.3 in)	42 years	56 of 100 (Notable)
4 August 1991	Pagosa Springs 1SE, US	daily rain	40.6 mm (1.6 in)	20.3 mm (0.8 in)	54 years	55 of 100 (Notable)
4 August 1991	Minneapolis, US	daily rain	59.2 mm (2.3 in)	30.0 mm (1.2 in)	84 years	53 of 100 (Notable)
4 August 1991	Edgartown, US	daily rain	118.4 mm (4.7 in)	76.2 mm (3.0 in)	20 years	50 of 100 (Notable)
4 August 1991	Humansdorp (Pol), ZA	daily rain	27.5 mm (1.1 in)	15.6 mm (0.6 in)	90 years	49 of 100 (Notable)
4 August 1991	Lincoln 1 SE, US	daily rain	58.4 mm (2.3 in)	47.7 mm (1.9 in)	30 years	49 of 100 (Notable)
4 August 1991	Towanda 1 S, US	daily rain	43.9 mm (1.7 in)	12.9 mm (0.5 in)	88 years	48 of 100 (Notable)
4 August 1991	Cuddalore, IN	daily rain	88.6 mm (3.5 in)	48.6 mm (1.9 in)	28 years	46 of 100 (Notable)
4 August 1991	Snowville, US	daily high min	21.1 C (70.0 F)	3.3 C (5.9 F)	96 years	46 of 100 (Notable)
4 August 1991	Atil, MX	daily low min	11.7 C (53.1 F)	6.1 C (11.0 F)	34 years	45 of 100 (Notable)
4 August 1991	Tonala (Dge), MX	daily rain	105.2 mm (4.1 in)	71.7 mm (2.8 in)	5 years	42 of 100 (Notable)
4 August 1991	Walgett Council Depot, AU	daily high max	27.4 C (81.3 F)	0.7 C (1.3 F)	106 years	41 of 100 (Notable)
4 August 1991	Scott City, US	daily rain	28.7 mm (1.1 in)	9.1 mm (0.36 in)	84 years	41 of 100 (Notable)
4 August 1991	Bourke Post Office, AU	daily high max	30.0 C (86.0 F)	2.2 C (4.0 F)	85 years	40 of 100 (Notable)
4 August 1991	Los Gatos, US	daily low max	20.0 C (68.0 F)	1.7 C (3.1 F)	90 years	40 of 100 (Notable)
4 August 1991	Healy, US	daily rain	41.9 mm (1.6 in)	10.9 mm (0.4 in)	76 years	40 of 100 (Notable)
4 August 1991	Ransom 2NE, US	daily rain	56.6 mm (2.2 in)	37.5 mm (1.5 in)	13 years	39 of 100 (Notable)
4 August 1991	Perryton, US	daily rain	46.5 mm (1.8 in)	10.2 mm (0.4 in)	76 years	39 of 100 (Notable)
4 August 1991	Hagerstown, US	daily high min	22.8 C (73.0 F)	0.6 C (1.1 F)	93 years	38 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

1815 to 1991

Records set or tied on this calendar date in each year from 1815 to 1991. 1991 had 769 records.

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

Records on 08-04 in each year
Year	Records
1815	1
1827	1
1830	2
1833	1
1835	1
1843	1
1846	1
1847	1
1848	1
1857	1
1859	2
1860	2
1863	1
1865	3
1867	1
1868	1
1870	1
1871	1
1872	2
1874	3
1875	1
1878	3
1879	1
1881	2
1882	1
1883	1
1885	3
1886	1
1887	3
1888	4
1889	2
1890	1
1891	2
1893	2
1894	1
1895	3
1896	4
1897	3
1898	1
1899	7
1900	6
1902	4
1903	18
1904	11
1905	19
1906	14
1907	20
1908	31
1909	27
1910	17
1911	23
1912	51
1913	15
1914	33
1915	85
1916	97
1917	29
1918	95
1919	34
1920	79
1921	67
1922	68
1923	146
1924	132
1925	77
1926	334
1927	136
1928	352
1929	224
1930	698
1931	371
1932	258
1933	347
1934	521
1935	367
1936	719
1937	258
1938	489
1939	433
1940	236
1941	383
1942	303
1943	468
1944	662
1945	355
1946	265
1947	845
1948	558
1949	421
1950	666
1951	680
1952	465
1953	1,017
1954	426
1955	624
1956	437
1957	343
1958	533
1959	303
1960	331
1961	745
1962	470
1963	438
1964	885
1965	409
1966	552
1967	428
1968	280
1969	638
1970	415
1971	813
1972	773
1973	748
1974	1,040
1975	772
1976	801
1977	599
1978	1,051
1979	510
1980	998
1981	636
1982	703
1983	920
1984	722
1985	634
1986	905
1987	892
1988	1,204
1989	738
1990	1,013
1991	769
1992	754
1993	1,046
1994	1,265
1995	1,117
1996	1,143
1997	891
1998	1,423
1999	762
2000	840
2001	1,087
2002	928
2003	1,309
2004	968
2005	1,246
2006	1,131
2007	685
2008	883
2009	681
2010	1,665
2011	1,536
2012	738
2013	452
2014	980
2015	505
2016	732
2017	1,134
2018	760
2019	499
2020	778
2021	691
2022	1,185
2023	1,150
2024	809
2025	840
2026	1,044

Download the Data

Data for records on 1991-08-04: 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	540
10 to 20	30
20 to 30	5
30 to 40	4
40 to 50	2
50 to 60	0
60 to 70	1
70 to 80	2