Weather Records on 26 August 1966

639 weather records were set or tied worldwide on 26 August 1966. Highest significance: Ioco Refinery, CA.

Key Facts for 26 August 1966

On 26 August 1966, 639 weather records were set or tied at long-record stations worldwide.
131 were record highs and 380 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 35 monthly and 604 daily.
Ioco Refinery set a daily record precipitation of 73.9 mm (2.9 in) on 26 August 1966.
Across 169 earlier years (1797 to 2026) the same calendar date averaged 433 records.

Record Map

639 stations

639 station records on 26 August 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 26 August 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ioco Refinery	Canada	Record daily precipitation	73.9 mm (2.9 in)	57 of 100 (Notable)
Fort St James	Canada	Record daily precipitation	34.0 mm (1.3 in)	54 of 100 (Notable)
Klamath Falls 2 SSW	United States	Record daily precipitation	31.8 mm (1.3 in)	51 of 100 (Notable)
Micurinsk	Russia	Record daily precipitation	34.7 mm (1.4 in)	47 of 100 (Notable)
Riversdale	South Africa	Record daily precipitation	27.5 mm (1.1 in)	46 of 100 (Notable)
Estrada de Cunha	Brazil	Record daily precipitation	32.4 mm (1.3 in)	44 of 100 (Notable)
Hondo	United States	Record low maximum temperature	20.0 C (68.0 F)	44 of 100 (Notable)
Liman	Russia	Record daily precipitation	25.2 mm (1.0 in)	43 of 100 (Notable)
Sonnblick	Austria	Record low maximum temperature	-6.8 C (19.8 F)	42 of 100 (Notable)
Liberty	United States	Record low maximum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Jena Sternwarte	Germany	Record low maximum temperature	14.2 C (57.6 F)	41 of 100 (Notable)
New Braunfels	United States	Record low maximum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Ft Lauderdale	United States	Record daily precipitation	103.1 mm (4.1 in)	40 of 100 (Notable)
Conroe	United States	Record low maximum temperature	23.3 C (73.9 F)	40 of 100 (Notable)
Eastland	United States	Record low maximum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Sugar Land	United States	Record low maximum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Pindamonhangaba (Pcd)	Brazil	Record daily precipitation	36.6 mm (1.4 in)	39 of 100 (Notable)
Bulloo Downs	Australia	Record daily precipitation	28.2 mm (1.1 in)	38 of 100 (Notable)
Idaho City	United States	Record high minimum temperature	16.7 C (62.1 F)	38 of 100 (Notable)
Balmorhea	United States	Record low maximum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Cruzeiro	Brazil	Record daily precipitation	33.4 mm (1.3 in)	36 of 100 (Notable)
Arnsberg	Germany	Record low maximum temperature	12.5 C (54.5 F)	36 of 100 (Notable)
Tambov	Russia	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
Lovington 2 WNW	United States	Record low maximum temperature	23.3 C (73.9 F)	36 of 100 (Notable)
Eagle Pass 3N	United States	Record low maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Zugspitze	Germany	Record low maximum temperature	-5.6 C (21.9 F)	35 of 100 (Notable)
Freiburg	Germany	Record low minimum temperature	6.5 C (43.7 F)	35 of 100 (Notable)
Brenham	United States	Record low maximum temperature	23.3 C (73.9 F)	35 of 100 (Notable)
Dublin 2SE	United States	Record low maximum temperature	21.7 C (71.1 F)	35 of 100 (Notable)
Luling	United States	Record low maximum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
Rodeo (Smn)	Mexico	Record low maximum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Millen 4 N	United States	Record daily precipitation	55.4 mm (2.2 in)	34 of 100 (Routine)
Brownwood 2NE	United States	Record low maximum temperature	24.4 C (75.9 F)	34 of 100 (Routine)
Pecos	United States	Record low maximum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Smithville	United States	Record low maximum temperature	21.7 C (71.1 F)	34 of 100 (Routine)
Coquitlam Lake	Canada	Record daily precipitation	55.4 mm (2.2 in)	33 of 100 (Routine)
Ljubljana Bezigrad	Slovenia	Record low maximum temperature	14.1 C (57.4 F)	33 of 100 (Routine)
Beaumont City	United States	Record low maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Beeville 5 NE	United States	Record low maximum temperature	21.7 C (71.1 F)	33 of 100 (Routine)
Boerne	United States	Record low maximum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Fowlerton	United States	Record daily precipitation	59.7 mm (2.4 in)	33 of 100 (Routine)
Grapevine Dam	United States	Record low maximum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
Humphery Rail Siding	Australia	Record daily precipitation	34.0 mm (1.3 in)	32 of 100 (Routine)
Rayne 6 N	United States	Record low maximum temperature	27.2 C (81.0 F)	32 of 100 (Routine)
Angleton 2 W	United States	Record low maximum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Mt Pleasant	United States	Record low minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Seward AP	United States	Record high maximum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Kremsmuenster	Austria	Record low minimum temperature	7.8 C (46.0 F)	31 of 100 (Routine)
Salzburg	Austria	Record low maximum temperature	10.1 C (50.2 F)	31 of 100 (Routine)
Statesville 2 NNE	United States	Record daily precipitation	54.9 mm (2.2 in)	31 of 100 (Routine)
Columbus	United States	Record daily precipitation	57.2 mm (2.3 in)	31 of 100 (Routine)
Dilley	United States	Record low maximum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Haskell	United States	Record low maximum temperature	22.8 C (73.0 F)	31 of 100 (Routine)
Seymour 3NW	United States	Record low maximum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Throckmorton	United States	Record low maximum temperature	22.2 C (72.0 F)	31 of 100 (Routine)
Uvalde	United States	Record low maximum temperature	21.7 C (71.1 F)	31 of 100 (Routine)
Avanashi	India	Record daily precipitation	28.0 mm (1.1 in)	30 of 100 (Routine)
Livingston	United States	Record low minimum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Challis	United States	Record high minimum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Caesars Head	United States	Record daily precipitation	59.9 mm (2.4 in)	30 of 100 (Routine)

Counts by Type and Timescale

639 records

Records set or tied on 26 August 1966 by type: Highest daily maximum 53, Lowest daily maximum 196, Highest daily minimum 78, Lowest daily minimum 184, Heaviest daily rainfall 128.

Records on 26 August 1966 by type
Record type	Records
Highest daily maximum	53
Lowest daily maximum	196
Highest daily minimum	78
Lowest daily minimum	184
Heaviest daily rainfall	128
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 26 August 1966 by timescale: all-time 0, monthly 35, daily 604.

How Much Records Were Beaten By

490 broken records

Margins by which the 490 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 54.8. Ties are not counted.

Top 20 by Significance

26 August 1966

Top 20 records on 26 August 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 August 1966	Ioco Refinery, CA	daily rain	73.9 mm (2.9 in)	54.8 mm (2.2 in)	40 years	57 of 100 (Notable)
26 August 1966	Fort St James, CA	daily rain	34.0 mm (1.3 in)	20.0 mm (0.8 in)	25 years	54 of 100 (Notable)
26 August 1966	Klamath Falls 2 SSW, US	daily rain	31.8 mm (1.3 in)	22.7 mm (0.9 in)	48 years	51 of 100 (Notable)
26 August 1966	Micurinsk, RU	daily rain	34.7 mm (1.4 in)	8.5 mm (0.33 in)	84 years	47 of 100 (Notable)
26 August 1966	Riversdale, ZA	daily rain	27.5 mm (1.1 in)	18.4 mm (0.7 in)	52 years	46 of 100 (Notable)
26 August 1966	Estrada de Cunha, BR	daily rain	32.4 mm (1.3 in)	24.0 mm (0.9 in)	29 years	44 of 100 (Notable)
26 August 1966	Hondo, US	monthly low max	20.0 C (68.0 F)	3.9 C (7.0 F)	50 years	44 of 100 (Notable)
26 August 1966	Liman, RU	daily rain	25.2 mm (1.0 in)	21.8 mm (0.9 in)	1 year	43 of 100 (Notable)
26 August 1966	Sonnblick, AT	monthly low max	-6.8 C (19.8 F)	0.4 C (0.7 F)	76 years	42 of 100 (Notable)
26 August 1966	Liberty, US	monthly low max	21.7 C (71.1 F)	2.7 C (4.9 F)	52 years	42 of 100 (Notable)
26 August 1966	Jena Sternwarte, DE	daily low max	14.2 C (57.6 F)	0.6 C (1.1 F)	101 years	41 of 100 (Notable)
26 August 1966	New Braunfels, US	monthly low max	21.7 C (71.1 F)	1.1 C (2.0 F)	73 years	41 of 100 (Notable)
26 August 1966	Ft Lauderdale, US	daily rain	103.1 mm (4.1 in)	52.3 mm (2.1 in)	17 years	40 of 100 (Notable)
26 August 1966	Conroe, US	monthly low max	23.3 C (73.9 F)	1.1 C (2.0 F)	66 years	40 of 100 (Notable)
26 August 1966	Eastland, US	daily low max	22.2 C (72.0 F)	6.7 C (12.1 F)	52 years	40 of 100 (Notable)
26 August 1966	Sugar Land, US	monthly low max	22.2 C (72.0 F)	0.6 C (1.1 F)	72 years	40 of 100 (Notable)
26 August 1966	Pindamonhangaba (Pcd), BR	daily rain	36.6 mm (1.4 in)	22.3 mm (0.9 in)	29 years	39 of 100 (Notable)
26 August 1966	Bulloo Downs, AU	daily rain	28.2 mm (1.1 in)	21.6 mm (0.9 in)	19 years	38 of 100 (Notable)
26 August 1966	Idaho City, US	daily high min	16.7 C (62.1 F)	3.9 C (7.0 F)	71 years	38 of 100 (Notable)
26 August 1966	Balmorhea, US	daily low max	20.6 C (69.1 F)	7.2 C (13.0 F)	40 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

1797 to 1966

Records set or tied on this calendar date in each year from 1797 to 1966. 1966 had 639 records.

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

Records on 08-26 in each year
Year	Records
1797	1
1800	2
1802	1
1807	3
1809	1
1810	1
1811	1
1812	1
1813	2
1814	1
1816	1
1835	1
1837	1
1838	2
1850	1
1851	1
1854	4
1855	2
1858	2
1859	1
1861	1
1864	4
1866	1
1869	1
1870	1
1872	2
1873	1
1879	1
1881	2
1885	4
1887	1
1888	1
1889	3
1890	2
1891	3
1892	3
1893	2
1894	3
1895	2
1896	8
1897	2
1898	2
1899	2
1900	8
1901	21
1902	5
1903	16
1904	7
1905	9
1906	24
1907	7
1908	27
1909	27
1910	18
1911	17
1912	48
1913	20
1914	41
1915	20
1916	40
1917	44
1918	24
1919	106
1920	39
1921	41
1922	84
1923	83
1924	651
1925	107
1926	184
1927	287
1928	141
1929	116
1930	201
1931	183
1932	298
1933	330
1934	290
1935	327
1936	701
1937	417
1938	428
1939	310
1940	509
1941	555
1942	576
1943	682
1944	855
1945	456
1946	419
1947	458
1948	1,063
1949	506
1950	294
1951	276
1952	354
1953	726
1954	700
1955	611
1956	283
1957	566
1958	662
1959	607
1960	381
1961	503
1962	493
1963	526
1964	312
1965	553
1966	639
1967	569
1968	375
1969	599
1970	939
1971	515
1972	610
1973	633
1974	567
1975	581
1976	427
1977	763
1978	535
1979	1,098
1980	933
1981	916
1982	754
1983	1,144
1984	660
1985	944
1986	804
1987	1,576
1988	658
1989	949
1990	779
1991	883
1992	1,743
1993	1,063
1994	668
1995	1,085
1996	950
1997	1,297
1998	1,277
1999	1,023
2000	778
2001	1,654
2002	1,100
2003	815
2004	1,093
2005	878
2006	935
2007	1,039
2008	1,050
2009	654
2010	1,600
2011	1,374
2012	657
2013	807
2014	670
2015	990
2016	1,029
2017	527
2018	620
2019	858
2020	769
2021	527
2022	583
2023	1,144
2024	714
2025	1,344
2026	906

Download the Data

Data for records on 1966-08-26: 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	449
10 to 20	25
20 to 30	9
30 to 40	2
40 to 50	3
50 to 60	2