Weather Records on 18 August 1927

269 weather records were set or tied worldwide on 18 August 1927. Highest significance: Sheffield, GB.

Key Facts for 18 August 1927

On 18 August 1927, 269 weather records were set or tied at long-record stations worldwide.
16 were record highs and 212 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 266 daily.
Sheffield set a daily record precipitation of 31.5 mm (1.2 in) on 18 August 1927.
Across 171 earlier years (1797 to 2026) the same calendar date averaged 442 records.

Record Map

269 stations

269 station records on 18 August 1927 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 August 1927: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sheffield	United Kingdom	Record daily precipitation	31.5 mm (1.2 in)	47 of 100 (Notable)
Clinton	United States	Record daily precipitation	76.2 mm (3.0 in)	42 of 100 (Notable)
Thomasville	United States	Record daily precipitation	61.0 mm (2.4 in)	38 of 100 (Notable)
Bathurst Gaol	Australia	Record low minimum temperature	-5.6 C (21.9 F)	34 of 100 (Routine)
St. Petersburg	Russia	Record daily precipitation	28.3 mm (1.1 in)	32 of 100 (Routine)
Rocky Mt	United States	Record daily precipitation	35.6 mm (1.4 in)	30 of 100 (Routine)
Crosbyton	United States	Record low minimum temperature	12.8 C (55.0 F)	29 of 100 (Routine)
Speers Ferry	United States	Record daily precipitation	45.7 mm (1.8 in)	29 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record low minimum temperature	3.8 C (38.8 F)	28 of 100 (Routine)
Kingston	United States	Record daily precipitation	40.6 mm (1.6 in)	26 of 100 (Routine)
Anderson 1 N	United States	Record low maximum temperature	18.9 C (66.0 F)	25 of 100 (Routine)
Colby	United States	Record low minimum temperature	5.6 C (42.1 F)	25 of 100 (Routine)
Carmel	United States	Record low maximum temperature	13.3 C (55.9 F)	25 of 100 (Routine)
Marion	United States	Record low maximum temperature	19.4 C (66.9 F)	25 of 100 (Routine)
Ft Collins	United States	Record low maximum temperature	18.9 C (66.0 F)	24 of 100 (Routine)
Columbus Dardc	United States	Record daily precipitation	45.0 mm (1.8 in)	23 of 100 (Routine)
Hay Springs	United States	Record low minimum temperature	1.7 C (35.1 F)	23 of 100 (Routine)
Rogersville 1 NE	United States	Record daily precipitation	55.9 mm (2.2 in)	23 of 100 (Routine)
Frankfort Downtown	United States	Record low maximum temperature	21.1 C (70.0 F)	21 of 100 (Routine)
Williamstown	United States	Record low maximum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
Greenville Wtp	United States	Record low maximum temperature	18.9 C (66.0 F)	21 of 100 (Routine)
Lobethal	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Wittenberg	Germany	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Ft Morgan	United States	Record low maximum temperature	19.4 C (66.9 F)	20 of 100 (Routine)
Scottsburg	United States	Record low minimum temperature	8.9 C (48.0 F)	20 of 100 (Routine)
Bethany	United States	Record low maximum temperature	21.1 C (70.0 F)	20 of 100 (Routine)
Morgantown 1	United States	Record low maximum temperature	21.1 C (70.0 F)	20 of 100 (Routine)
Stansbury	Australia	Record daily precipitation	12.2 mm (0.5 in)	19 of 100 (Routine)
Marrabel	Australia	Record daily precipitation	18.3 mm (0.7 in)	19 of 100 (Routine)
Hawkinsville	United States	Record daily precipitation	56.9 mm (2.2 in)	19 of 100 (Routine)
Bonaparte 5 NE	United States	Record low maximum temperature	21.1 C (70.0 F)	19 of 100 (Routine)
Bridgeport	United States	Record low maximum temperature	19.4 C (66.9 F)	19 of 100 (Routine)
Oakdale	United States	Record low maximum temperature	18.9 C (66.0 F)	19 of 100 (Routine)
Santee	United States	Record low maximum temperature	21.7 C (71.1 F)	19 of 100 (Routine)
Walgett Council Depot	Australia	Record low minimum temperature	-3.3 C (26.1 F)	18 of 100 (Routine)
Atyrau	Kazakhstan	Record high minimum temperature	23.1 C (73.6 F)	18 of 100 (Routine)
Hay Springs	United States	Record low maximum temperature	21.1 C (70.0 F)	18 of 100 (Routine)
Spearfish	United States	Record low maximum temperature	18.9 C (66.0 F)	18 of 100 (Routine)
Rugby	United States	Record daily precipitation	43.2 mm (1.7 in)	18 of 100 (Routine)
Runnymede Spottsville	United States	Record daily precipitation	58.9 mm (2.3 in)	18 of 100 (Routine)
Park Rapids Muni AP	United States	Record low maximum temperature	13.3 C (55.9 F)	18 of 100 (Routine)
Tranebjerg	Denmark	Record daily precipitation	12.0 mm (0.5 in)	17 of 100 (Routine)
Berlin-Dahlem (Lfag)	Germany	Record daily precipitation	14.8 mm (0.6 in)	17 of 100 (Routine)
Chemnitz	Germany	Record daily precipitation	15.2 mm (0.6 in)	17 of 100 (Routine)
Castle Rock	United States	Record low minimum temperature	4.4 C (39.9 F)	17 of 100 (Routine)
Greeley	United States	Record low maximum temperature	21.7 C (71.1 F)	17 of 100 (Routine)
Rocky Ford 2 SE	United States	Record low minimum temperature	10.0 C (50.0 F)	17 of 100 (Routine)
Storrs	United States	Record low maximum temperature	14.4 C (57.9 F)	17 of 100 (Routine)
Bloomington Normal	United States	Record low maximum temperature	22.2 C (72.0 F)	17 of 100 (Routine)
Carroll	United States	Record low maximum temperature	18.9 C (66.0 F)	17 of 100 (Routine)
Millington 3 SE	United States	Record low maximum temperature	20.0 C (68.0 F)	17 of 100 (Routine)
Imperial	United States	Record low minimum temperature	10.0 C (50.0 F)	17 of 100 (Routine)
Austin #2	United States	Record high maximum temperature	33.9 C (93.0 F)	17 of 100 (Routine)
Waynesville	United States	Record low maximum temperature	20.0 C (68.0 F)	17 of 100 (Routine)
Lycippus 1 E	United States	Record low maximum temperature	20.0 C (68.0 F)	17 of 100 (Routine)
Muskegon Co AP	United States	Record low maximum temperature	18.3 C (64.9 F)	17 of 100 (Routine)
Scottsbluff W B Heilig Fld AP	United States	Record low maximum temperature	21.7 C (71.1 F)	17 of 100 (Routine)
Gunnedah Pool	Australia	Record low minimum temperature	-3.9 C (25.0 F)	16 of 100 (Routine)
Enisejsk	Russia	Record low minimum temperature	1.7 C (35.1 F)	16 of 100 (Routine)
Talbotton	United States	Record daily precipitation	44.5 mm (1.8 in)	16 of 100 (Routine)

Counts by Type and Timescale

269 records

Records set or tied on 18 August 1927 by type: Highest daily maximum 7, Lowest daily maximum 167, Highest daily minimum 9, Lowest daily minimum 45, Heaviest daily rainfall 41.

Records on 18 August 1927 by type
Record type	Records
Highest daily maximum	7
Lowest daily maximum	167
Highest daily minimum	9
Lowest daily minimum	45
Heaviest daily rainfall	41
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 August 1927 by timescale: all-time 0, monthly 3, daily 266.

How Much Records Were Beaten By

204 broken records

Margins by which the 204 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 45.7. Ties are not counted.

Top 20 by Significance

18 August 1927

Top 20 records on 18 August 1927 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 August 1927	Sheffield, GB	daily rain	31.5 mm (1.2 in)	25.2 mm (1.0 in)	16 years	47 of 100 (Notable)
18 August 1927	Clinton, US	daily rain	76.2 mm (3.0 in)	45.7 mm (1.8 in)	8 years	42 of 100 (Notable)
18 August 1927	Thomasville, US	daily rain	61.0 mm (2.4 in)	44.5 mm (1.8 in)	34 years	38 of 100 (Notable)
18 August 1927	Bathurst Gaol, AU	daily low min	-5.6 C (21.9 F)	2.3 C (4.1 F)	66 years	34 of 100 (Routine)
18 August 1927	St. Petersburg, RU	daily rain	28.3 mm (1.1 in)	16.9 mm (0.7 in)	16 years	32 of 100 (Routine)
18 August 1927	Rocky Mt, US	daily rain	35.6 mm (1.4 in)	22.9 mm (0.9 in)	28 years	30 of 100 (Routine)
18 August 1927	Crosbyton, US	daily low min	12.8 C (55.0 F)	4.4 C (7.9 F)	29 years	29 of 100 (Routine)
18 August 1927	Speers Ferry, US	daily rain	45.7 mm (1.8 in)	27.4 mm (1.1 in)	8 years	29 of 100 (Routine)
18 August 1927	Sydney (Observatory Hill), AU	daily low min	3.8 C (38.8 F)	1.1 C (2.0 F)	62 years	28 of 100 (Routine)
18 August 1927	Kingston, US	daily rain	40.6 mm (1.6 in)	16.7 mm (0.7 in)	25 years	26 of 100 (Routine)
18 August 1927	Anderson 1 N, US	daily low max	18.9 C (66.0 F)	5.0 C (9.0 F)	24 years	25 of 100 (Routine)
18 August 1927	Colby, US	daily low min	5.6 C (42.1 F)	5.5 C (9.9 F)	16 years	25 of 100 (Routine)
18 August 1927	Carmel, US	monthly low max	13.3 C (55.9 F)	1.7 C (3.1 F)	23 years	25 of 100 (Routine)
18 August 1927	Marion, US	daily low max	19.4 C (66.9 F)	4.5 C (8.1 F)	30 years	25 of 100 (Routine)
18 August 1927	Ft Collins, US	daily low max	18.9 C (66.0 F)	4.4 C (7.9 F)	31 years	24 of 100 (Routine)
18 August 1927	Columbus Dardc, US	daily rain	45.0 mm (1.8 in)	23.2 mm (0.9 in)	6 years	23 of 100 (Routine)
18 August 1927	Hay Springs, US	daily low min	1.7 C (35.1 F)	6.6 C (11.9 F)	1 year	23 of 100 (Routine)
18 August 1927	Rogersville 1 NE, US	daily rain	55.9 mm (2.2 in)	20.3 mm (0.8 in)	5 years	23 of 100 (Routine)
18 August 1927	Frankfort Downtown, US	daily low max	21.1 C (70.0 F)	3.3 C (5.9 F)	24 years	21 of 100 (Routine)
18 August 1927	Williamstown, US	daily low max	14.4 C (57.9 F)	3.4 C (6.1 F)	24 years	21 of 100 (Routine)

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 1927

Records set or tied on this calendar date in each year from 1797 to 1927. 1927 had 269 records.

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

Records on 08-18 in each year
Year	Records
1797	2
1805	1
1816	1
1827	1
1829	1
1830	1
1833	1
1841	1
1844	1
1845	3
1846	1
1847	1
1849	1
1851	1
1852	1
1853	1
1854	2
1855	1
1856	1
1861	1
1864	2
1866	1
1868	2
1869	1
1870	2
1872	1
1873	1
1875	3
1876	1
1878	1
1879	2
1883	3
1885	3
1886	3
1887	3
1888	2
1889	1
1890	1
1891	2
1892	6
1893	4
1894	4
1895	1
1898	4
1899	6
1900	2
1901	10
1902	8
1903	6
1904	8
1905	10
1906	40
1907	7
1908	21
1909	24
1910	16
1911	11
1912	21
1913	43
1914	37
1915	60
1916	71
1917	70
1918	53
1919	34
1920	51
1921	39
1922	129
1923	90
1924	225
1925	300
1926	168
1927	269
1928	141
1929	181
1930	150
1931	241
1932	382
1933	431
1934	638
1935	424
1936	766
1937	308
1938	243
1939	381
1940	434
1941	467
1942	333
1943	738
1944	325
1945	400
1946	416
1947	958
1948	315
1949	393
1950	683
1951	355
1952	405
1953	323
1954	622
1955	795
1956	580
1957	380
1958	580
1959	537
1960	599
1961	415
1962	428
1963	760
1964	443
1965	525
1966	573
1967	623
1968	795
1969	530
1970	597
1971	381
1972	493
1973	734
1974	639
1975	844
1976	917
1977	1,112
1978	854
1979	1,309
1980	771
1981	1,386
1982	563
1983	1,420
1984	600
1985	765
1986	861
1987	1,609
1988	1,351
1989	952
1990	920
1991	533
1992	1,497
1993	706
1994	1,027
1995	1,882
1996	760
1997	1,191
1998	923
1999	888
2000	1,183
2001	1,036
2002	1,306
2003	860
2004	1,050
2005	865
2006	842
2007	1,116
2008	1,265
2009	839
2010	1,167
2011	1,239
2012	1,247
2013	752
2014	751
2015	880
2016	704
2017	565
2018	462
2019	615
2020	1,541
2021	1,118
2022	1,237
2023	1,094
2024	696
2025	455
2026	545

Download the Data

Data for records on 1927-08-18: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Histogram of margins by which records were beaten on 18 August 1927
Margin	Records
0 to 10	191
10 to 20	5
20 to 30	6
30 to 40	0
40 to 50	2