Weather Records on 27 July 1966

594 weather records were set or tied worldwide on 27 July 1966. Highest significance: Fairbury 7S, US.

Key Facts for 27 July 1966

On 27 July 1966, 594 weather records were set or tied at long-record stations worldwide.
100 were record highs and 92 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 6 monthly and 585 daily.
Fairbury 7S set a daily record precipitation of 91.7 mm (3.6 in) on 27 July 1966.
Across 162 earlier years (1805 to 2026) the same calendar date averaged 452 records.

Record Map

594 stations

594 station records on 27 July 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 July 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Fairbury 7S	United States	Record daily precipitation	91.7 mm (3.6 in)	68 of 100 (Major)
Palmyra	United States	Record daily precipitation	83.8 mm (3.3 in)	60 of 100 (Major)
Adelaide West Terrace	Australia	Record daily precipitation	31.2 mm (1.2 in)	58 of 100 (Notable)
Gumeracha	Australia	Record daily precipitation	46.0 mm (1.8 in)	58 of 100 (Notable)
Walpa (Danyo)	Australia	Record daily precipitation	25.9 mm (1.0 in)	58 of 100 (Notable)
Birdwood	Australia	Record daily precipitation	46.0 mm (1.8 in)	57 of 100 (Notable)
Warooka	Australia	Record daily precipitation	25.7 mm (1.0 in)	56 of 100 (Notable)
Mount Pleasant	Australia	Record daily precipitation	45.2 mm (1.8 in)	56 of 100 (Notable)
Vaduj	India	Record daily precipitation	64.0 mm (2.5 in)	55 of 100 (Notable)
Sulitjelma	Norway	Record daily precipitation	52.0 mm (2.0 in)	55 of 100 (Notable)
Joliet	United States	Record daily precipitation	73.7 mm (2.9 in)	55 of 100 (Notable)
Willunga	Australia	Record daily precipitation	29.2 mm (1.1 in)	54 of 100 (Notable)
Minlaton	Australia	Record daily precipitation	26.4 mm (1.0 in)	52 of 100 (Notable)
Lobethal	Australia	Record daily precipitation	57.2 mm (2.3 in)	52 of 100 (Notable)
Escada	Brazil	Record daily precipitation	70.2 mm (2.8 in)	51 of 100 (Notable)
Adelaide (Unley)	Australia	Record daily precipitation	38.1 mm (1.5 in)	50 of 100 (Notable)
Astrakan	Russia	Record high minimum temperature	27.5 C (81.5 F)	50 of 100 (Notable)
Adelaide (Pooraka)	Australia	Record daily precipitation	25.4 mm (1.0 in)	47 of 100 (Notable)
Two Wells	Australia	Record daily precipitation	26.9 mm (1.1 in)	47 of 100 (Notable)
Bahraich	India	Record daily precipitation	133.2 mm (5.2 in)	47 of 100 (Notable)
Chicago Midway AP 3SW	United States	Record daily precipitation	119.6 mm (4.7 in)	47 of 100 (Notable)
Penola Post Office	Australia	Record daily precipitation	34.5 mm (1.4 in)	46 of 100 (Notable)
Adelaide (Seaton)	Australia	Record daily precipitation	29.0 mm (1.1 in)	45 of 100 (Notable)
Grundy Ctr	United States	Record daily precipitation	58.7 mm (2.3 in)	45 of 100 (Notable)
Farrell Flat	Australia	Record daily precipitation	26.2 mm (1.0 in)	44 of 100 (Notable)
North Adelaide	Australia	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Barerakalan	India	Record daily precipitation	200.0 mm (7.9 in)	44 of 100 (Notable)
Chicago UNIV	United States	Record daily precipitation	72.4 mm (2.9 in)	44 of 100 (Notable)
Pembroke Eddy Match	Canada	Record low minimum temperature	7.2 C (45.0 F)	43 of 100 (Notable)
Williamsburg 1E	United States	Record daily precipitation	62.7 mm (2.5 in)	43 of 100 (Notable)
Curramulka	Australia	Record daily precipitation	27.2 mm (1.1 in)	42 of 100 (Notable)
Glenelg Post Office	Australia	Record daily precipitation	26.9 mm (1.1 in)	42 of 100 (Notable)
Adelaide (Glen Osmond)	Australia	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Petrified Forest Np	United States	Record daily precipitation	32.0 mm (1.3 in)	42 of 100 (Notable)
Quincy Mem Brg	United States	Record daily precipitation	45.5 mm (1.8 in)	42 of 100 (Notable)
Forbes (Camp Street)	Australia	Record low maximum temperature	8.3 C (46.9 F)	41 of 100 (Notable)
Keokuk L&D 19	United States	Record daily precipitation	38.9 mm (1.5 in)	41 of 100 (Notable)
Adelaide (Tea Tree Gully Counc	Australia	Record daily precipitation	31.2 mm (1.2 in)	40 of 100 (Notable)
Ashland #2	United States	Record daily precipitation	58.9 mm (2.3 in)	40 of 100 (Notable)
Williamstown	Australia	Record daily precipitation	34.5 mm (1.4 in)	39 of 100 (Notable)
Olpad	India	Record daily precipitation	175.0 mm (6.9 in)	39 of 100 (Notable)
Bol'soe-Almaatinskoe-Ozero	Kazakhstan	Record daily precipitation	35.1 mm (1.4 in)	39 of 100 (Notable)
Iowa City	United States	Record daily precipitation	50.3 mm (2.0 in)	39 of 100 (Notable)
Wymore	United States	Record daily precipitation	53.3 mm (2.1 in)	39 of 100 (Notable)
Auburn	Australia	Record daily precipitation	35.1 mm (1.4 in)	38 of 100 (Notable)
Harrogate	Australia	Record daily precipitation	30.5 mm (1.2 in)	38 of 100 (Notable)
Penola (Comaum Park)	Australia	Record daily precipitation	27.7 mm (1.1 in)	38 of 100 (Notable)
Stapleton 5 SSE	United States	Record daily precipitation	36.1 mm (1.4 in)	38 of 100 (Notable)
Magill Post Office	Australia	Record daily precipitation	31.5 mm (1.2 in)	36 of 100 (Notable)
Kapunda	Australia	Record daily precipitation	26.4 mm (1.0 in)	36 of 100 (Notable)
Bonley	Australia	Record daily precipitation	32.3 mm (1.3 in)	36 of 100 (Notable)
Bonfim	Brazil	Record daily precipitation	56.3 mm (2.2 in)	36 of 100 (Notable)
Woodstock	Canada	Record daily precipitation	54.9 mm (2.2 in)	36 of 100 (Notable)
Hambantota	Sri Lanka	Record high minimum temperature	26.5 C (79.7 F)	36 of 100 (Notable)
Mahackala	Russia	Record high minimum temperature	26.9 C (80.4 F)	36 of 100 (Notable)
Barcelona -Fabra Observatory	Spain	Record daily precipitation	40.1 mm (1.6 in)	36 of 100 (Notable)
Elgin Water	United States	Record daily precipitation	60.7 mm (2.4 in)	36 of 100 (Notable)
Happy Valley Reservoir	Australia	Record daily precipitation	26.4 mm (1.0 in)	35 of 100 (Notable)
Cudlee Creek (Millbrook)	Australia	Record daily precipitation	34.3 mm (1.4 in)	35 of 100 (Notable)
Cape Northumberland	Australia	Record daily precipitation	26.9 mm (1.1 in)	35 of 100 (Notable)

Counts by Type and Timescale

594 records

Records set or tied on 27 July 1966 by type: Highest daily maximum 44, Lowest daily maximum 40, Highest daily minimum 56, Lowest daily minimum 52, Heaviest daily rainfall 402.

Records on 27 July 1966 by type
Record type	Records
Highest daily maximum	44
Lowest daily maximum	40
Highest daily minimum	56
Lowest daily minimum	52
Heaviest daily rainfall	402
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 July 1966 by timescale: all-time 3, monthly 6, daily 585.

How Much Records Were Beaten By

522 broken records

Margins by which the 522 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 103.5. Ties are not counted.

Top 20 by Significance

27 July 1966

Top 20 records on 27 July 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 July 1966	Fairbury 7S, US	daily rain	91.7 mm (3.6 in)	66.3 mm (2.6 in)	72 years	68 of 100 (Major)
27 July 1966	Palmyra, US	daily rain	83.8 mm (3.3 in)	62.7 mm (2.5 in)	67 years	60 of 100 (Major)
27 July 1966	Adelaide West Terrace, AU	daily rain	31.2 mm (1.2 in)	11.1 mm (0.4 in)	82 years	58 of 100 (Notable)
27 July 1966	Gumeracha, AU	daily rain	46.0 mm (1.8 in)	20.6 mm (0.8 in)	64 years	58 of 100 (Notable)
27 July 1966	Walpa (Danyo), AU	daily rain	25.9 mm (1.0 in)	18.8 mm (0.7 in)	44 years	58 of 100 (Notable)
27 July 1966	Birdwood, AU	daily rain	46.0 mm (1.8 in)	21.1 mm (0.8 in)	64 years	57 of 100 (Notable)
27 July 1966	Warooka, AU	daily rain	25.7 mm (1.0 in)	11.7 mm (0.5 in)	64 years	56 of 100 (Notable)
27 July 1966	Mount Pleasant, AU	daily rain	45.2 mm (1.8 in)	18.8 mm (0.7 in)	64 years	56 of 100 (Notable)
27 July 1966	Vaduj, IN	daily rain	64.0 mm (2.5 in)	51.8 mm (2.0 in)	32 years	55 of 100 (Notable)
27 July 1966	Sulitjelma, NO	monthly rain	52.0 mm (2.0 in)	14.3 mm (0.6 in)	40 years	55 of 100 (Notable)
27 July 1966	Joliet, US	daily rain	73.7 mm (2.9 in)	54.1 mm (2.1 in)	28 years	55 of 100 (Notable)
27 July 1966	Willunga, AU	daily rain	29.2 mm (1.1 in)	12.2 mm (0.5 in)	79 years	54 of 100 (Notable)
27 July 1966	Minlaton, AU	daily rain	26.4 mm (1.0 in)	11.7 mm (0.5 in)	59 years	52 of 100 (Notable)
27 July 1966	Lobethal, AU	daily rain	57.2 mm (2.3 in)	21.6 mm (0.9 in)	64 years	52 of 100 (Notable)
27 July 1966	Escada, BR	daily rain	70.2 mm (2.8 in)	56.2 mm (2.2 in)	25 years	51 of 100 (Notable)
27 July 1966	Adelaide (Unley), AU	daily rain	38.1 mm (1.5 in)	19.8 mm (0.8 in)	17 years	50 of 100 (Notable)
27 July 1966	Astrakan, RU	all-time high min	27.5 C (81.5 F)	0.1 C (0.2 F)	75 years	50 of 100 (Notable)
27 July 1966	Adelaide (Pooraka), AU	daily rain	25.4 mm (1.0 in)	8.4 mm (0.33 in)	64 years	47 of 100 (Notable)
27 July 1966	Two Wells, AU	daily rain	26.9 mm (1.1 in)	7.8 mm (0.31 in)	64 years	47 of 100 (Notable)
27 July 1966	Bahraich, IN	daily rain	133.2 mm (5.2 in)	86.2 mm (3.4 in)	36 years	47 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 1966

Records set or tied on this calendar date in each year from 1805 to 1966. 1966 had 594 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 1966-07-27: 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	478
20 to 40	28
40 to 60	10
60 to 80	2
80 to 100	2
100 to 120	2