Weather Records on 27 July 1991

763 weather records were set or tied worldwide on 27 July 1991. Highest significance: Chattanooga, US.

Key Facts for 27 July 1991

On 27 July 1991, 763 weather records were set or tied at long-record stations worldwide.
203 were record highs and 355 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 21 monthly and 741 daily.
Chattanooga set a daily record precipitation of 100.8 mm (4.0 in) on 27 July 1991.
Across 162 earlier years (1805 to 2026) the same calendar date averaged 451 records.

Record Map

763 stations

763 station records on 27 July 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 July 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chattanooga	United States	Record daily precipitation	100.8 mm (4.0 in)	61 of 100 (Major)
Goldsboro 4 SE	United States	Record daily precipitation	121.7 mm (4.8 in)	59 of 100 (Notable)
Dover	United States	Record daily precipitation	91.7 mm (3.6 in)	58 of 100 (Notable)
Frederick	United States	Record daily precipitation	58.4 mm (2.3 in)	58 of 100 (Notable)
Everglades	United States	Record daily precipitation	111.8 mm (4.4 in)	56 of 100 (Notable)
Chernivtsi	Ukraine	Record daily precipitation	111.2 mm (4.4 in)	54 of 100 (Notable)
Vernon	United States	Record daily precipitation	135.4 mm (5.3 in)	54 of 100 (Notable)
Slidell	United States	Record daily precipitation	105.4 mm (4.1 in)	52 of 100 (Notable)
Middletown 4 W	United States	Record daily precipitation	61.5 mm (2.4 in)	51 of 100 (Notable)
Monahans	United States	Record daily precipitation	71.9 mm (2.8 in)	51 of 100 (Notable)
Midland 4 ENE	United States	Record daily precipitation	49.5 mm (1.9 in)	48 of 100 (Notable)
Mombetsu	Japan	Record daily precipitation	61.0 mm (2.4 in)	47 of 100 (Notable)
Kremmling	United States	Record low maximum temperature	18.3 C (64.9 F)	47 of 100 (Notable)
Danbury	United States	Record daily precipitation	88.9 mm (3.5 in)	47 of 100 (Notable)
Arcola	United States	Record daily precipitation	80.0 mm (3.1 in)	47 of 100 (Notable)
Walters	United States	Record daily precipitation	115.6 mm (4.6 in)	47 of 100 (Notable)
Rotan	United States	Record daily precipitation	59.9 mm (2.4 in)	47 of 100 (Notable)
Las Burras	Mexico	Record daily precipitation	48.8 mm (1.9 in)	46 of 100 (Notable)
Ratnagiri	India	Record daily precipitation	166.9 mm (6.6 in)	45 of 100 (Notable)
Socorro	United States	Record low maximum temperature	24.4 C (75.9 F)	45 of 100 (Notable)
Chattanooga	United States	Record low maximum temperature	23.3 C (73.9 F)	45 of 100 (Notable)
Wateree Dam	United States	Record daily precipitation	101.6 mm (4.0 in)	45 of 100 (Notable)
Electra	United States	Record daily precipitation	69.6 mm (2.7 in)	45 of 100 (Notable)
Budapest	Hungary	Record daily precipitation	40.1 mm (1.6 in)	44 of 100 (Notable)
Tuckerton 2 NE	United States	Record daily precipitation	49.5 mm (1.9 in)	44 of 100 (Notable)
Comanche	United States	Record daily precipitation	102.9 mm (4.1 in)	44 of 100 (Notable)
Grandfalls 3SSE	United States	Record daily precipitation	30.7 mm (1.2 in)	44 of 100 (Notable)
Savage	United States	Record daily precipitation	37.6 mm (1.5 in)	43 of 100 (Notable)
Ponyri	Russia	Record daily precipitation	46.3 mm (1.8 in)	42 of 100 (Notable)
Armagh	United Kingdom	Record high minimum temperature	15.7 C (60.3 F)	42 of 100 (Notable)
Bucuresti Filaret	Romania	Record daily precipitation	40.3 mm (1.6 in)	41 of 100 (Notable)
Pauls Valley 4 WSW	United States	Record low maximum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Franklin	United States	Record daily precipitation	114.6 mm (4.5 in)	40 of 100 (Notable)
Enid	United States	Record low minimum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Woonsocket	United States	Record daily precipitation	67.8 mm (2.7 in)	40 of 100 (Notable)
Obihiro	Japan	Record daily precipitation	32.0 mm (1.3 in)	39 of 100 (Notable)
Haskell	United States	Record low maximum temperature	27.2 C (81.0 F)	39 of 100 (Notable)
Big Meadows	United States	Record daily precipitation	69.1 mm (2.7 in)	39 of 100 (Notable)
Presa Parral	Mexico	Record daily precipitation	59.9 mm (2.4 in)	38 of 100 (Notable)
Chestertown	United States	Record low maximum temperature	21.7 C (71.1 F)	38 of 100 (Notable)
Lewiston	United States	Record daily precipitation	95.3 mm (3.8 in)	38 of 100 (Notable)
Dodgeville Wwtp	United States	Record low minimum temperature	8.3 C (46.9 F)	38 of 100 (Notable)
Monclova (Dge)	Mexico	Record low maximum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Buzau	Romania	Record daily precipitation	76.5 mm (3.0 in)	37 of 100 (Notable)
Lamar	United States	Record low minimum temperature	10.0 C (50.0 F)	37 of 100 (Notable)
Altus Irig Rsch STN	United States	Record low maximum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
San Martin Chalchicuautla	Mexico	Record low minimum temperature	15.6 C (60.1 F)	36 of 100 (Notable)
Alberta	United States	Record daily precipitation	55.4 mm (2.2 in)	36 of 100 (Notable)
Lake City	United States	Record low maximum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Tallulah	United States	Record low maximum temperature	26.7 C (80.1 F)	36 of 100 (Notable)
Leola	United States	Record low maximum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Farmville	United States	Record daily precipitation	62.5 mm (2.5 in)	36 of 100 (Notable)
Lafayette 1 NE	United States	Record daily precipitation	56.6 mm (2.2 in)	36 of 100 (Notable)
Louisa	United States	Record daily precipitation	61.0 mm (2.4 in)	36 of 100 (Notable)
Koebenhavn: Landbohojskolen-1	Denmark	Record high maximum temperature	28.8 C (83.8 F)	35 of 100 (Notable)
Motozintla (Smn)	Mexico	Record high maximum temperature	32.2 C (90.0 F)	35 of 100 (Notable)
Dzilam de Bravo	Mexico	Record low minimum temperature	13.9 C (57.0 F)	35 of 100 (Notable)
Omsk	Russia	Record high minimum temperature	22.3 C (72.1 F)	35 of 100 (Notable)
Dover	United States	Record low maximum temperature	22.8 C (73.0 F)	35 of 100 (Notable)
Howard	United States	Record low maximum temperature	21.1 C (70.0 F)	35 of 100 (Notable)

Counts by Type and Timescale

763 records

Records set or tied on 27 July 1991 by type: Highest daily maximum 93, Lowest daily maximum 214, Highest daily minimum 110, Lowest daily minimum 141, Heaviest daily rainfall 205.

Records on 27 July 1991 by type
Record type	Records
Highest daily maximum	93
Lowest daily maximum	214
Highest daily minimum	110
Lowest daily minimum	141
Heaviest daily rainfall	205
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 July 1991 by timescale: all-time 1, monthly 21, daily 741.

How Much Records Were Beaten By

574 broken records

Margins by which the 574 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.1. Ties are not counted.

Top 20 by Significance

27 July 1991

Top 20 records on 27 July 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 July 1991	Chattanooga, US	daily rain	100.8 mm (4.0 in)	79.0 mm (3.1 in)	45 years	61 of 100 (Major)
27 July 1991	Goldsboro 4 SE, US	daily rain	121.7 mm (4.8 in)	64.3 mm (2.5 in)	56 years	59 of 100 (Notable)
27 July 1991	Dover, US	daily rain	91.7 mm (3.6 in)	60.7 mm (2.4 in)	48 years	58 of 100 (Notable)
27 July 1991	Frederick, US	daily rain	58.4 mm (2.3 in)	52.8 mm (2.1 in)	45 years	58 of 100 (Notable)
27 July 1991	Everglades, US	daily rain	111.8 mm (4.4 in)	81.3 mm (3.2 in)	33 years	56 of 100 (Notable)
27 July 1991	Chernivtsi, UA	all-time rain	111.2 mm (4.4 in)	25.3 mm (1.0 in)	22 years	54 of 100 (Notable)
27 July 1991	Vernon, US	monthly rain	135.4 mm (5.3 in)	31.5 mm (1.2 in)	50 years	54 of 100 (Notable)
27 July 1991	Slidell, US	daily rain	105.4 mm (4.1 in)	89.4 mm (3.5 in)	28 years	52 of 100 (Notable)
27 July 1991	Middletown 4 W, US	daily rain	61.5 mm (2.4 in)	15.3 mm (0.6 in)	101 years	51 of 100 (Notable)
27 July 1991	Monahans, US	daily rain	71.9 mm (2.8 in)	64.0 mm (2.5 in)	28 years	51 of 100 (Notable)
27 July 1991	Midland 4 ENE, US	daily rain	49.5 mm (1.9 in)	27.9 mm (1.1 in)	77 years	48 of 100 (Notable)
27 July 1991	Mombetsu, JP	daily rain	61.0 mm (2.4 in)	49.5 mm (1.9 in)	16 years	47 of 100 (Notable)
27 July 1991	Kremmling, US	daily low max	18.3 C (64.9 F)	4.5 C (8.1 F)	81 years	47 of 100 (Notable)
27 July 1991	Danbury, US	daily rain	88.9 mm (3.5 in)	47.2 mm (1.9 in)	30 years	47 of 100 (Notable)
27 July 1991	Arcola, US	daily rain	80.0 mm (3.1 in)	37.3 mm (1.5 in)	58 years	47 of 100 (Notable)
27 July 1991	Walters, US	daily rain	115.6 mm (4.6 in)	102.1 mm (4.0 in)	1 year	47 of 100 (Notable)
27 July 1991	Rotan, US	daily rain	59.9 mm (2.4 in)	50.5 mm (2.0 in)	28 years	47 of 100 (Notable)
27 July 1991	Las Burras, MX	daily rain	48.8 mm (1.9 in)	29.5 mm (1.2 in)	36 years	46 of 100 (Notable)
27 July 1991	Ratnagiri, IN	daily rain	166.9 mm (6.6 in)	60.7 mm (2.4 in)	72 years	45 of 100 (Notable)
27 July 1991	Socorro, US	daily low max	24.4 C (75.9 F)	3.4 C (6.1 F)	85 years	45 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

1805 to 1991

Records set or tied on this calendar date in each year from 1805 to 1991. 1991 had 763 records.

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

Records on 07-27 in each year
Year	Records
1805	1
1815	2
1820	1
1832	2
1847	1
1852	1
1856	2
1857	2
1862	1
1863	1
1867	2
1868	4
1870	1
1871	1
1872	2
1873	1
1875	1
1876	2
1877	2
1881	2
1882	1
1883	5
1884	2
1886	1
1887	3
1888	3
1889	4
1890	5
1891	1
1893	2
1894	1
1895	2
1896	1
1897	5
1898	2
1899	4
1900	5
1901	11
1902	4
1903	13
1904	13
1905	7
1906	16
1907	14
1908	17
1909	18
1910	7
1911	51
1912	89
1913	43
1914	44
1915	31
1916	143
1917	46
1918	103
1919	86
1920	67
1921	123
1922	95
1923	142
1924	71
1925	234
1926	131
1927	69
1928	222
1929	177
1930	786
1931	429
1932	172
1933	414
1934	471
1935	289
1936	971
1937	407
1938	287
1939	284
1940	632
1941	457
1942	258
1943	326
1944	398
1945	337
1946	680
1947	389
1948	485
1949	418
1950	797
1951	207
1952	476
1953	248
1954	294
1955	521
1956	325
1957	372
1958	491
1959	395
1960	385
1961	277
1962	1,009
1963	584
1964	335
1965	434
1966	594
1967	559
1968	391
1969	588
1970	379
1971	1,083
1972	790
1973	751
1974	403
1975	588
1976	426
1977	878
1978	583
1979	749
1980	760
1981	1,233
1982	584
1983	1,455
1984	1,613
1985	571
1986	836
1987	1,108
1988	936
1989	1,103
1990	846
1991	763
1992	791
1993	1,317
1994	1,851
1995	1,192
1996	950
1997	1,173
1998	1,363
1999	820
2000	1,019
2001	1,265
2002	816
2003	1,064
2004	1,552
2005	1,743
2006	1,321
2007	904
2008	784
2009	829
2010	1,330
2011	1,007
2012	823
2013	1,110
2014	591
2015	744
2016	564
2017	460
2018	737
2019	597
2020	842
2021	1,131
2022	855
2023	826
2024	646
2025	853
2026	1,170

Download the Data

Data for records on 1991-07-27: 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	520
20 to 40	37
40 to 60	8
60 to 80	5
80 to 100	3
100 to 120	1