Weather Records on 18 August 1994

1,027 weather records were set or tied worldwide on 18 August 1994. Highest significance: Wilkes Barre, US.

Key Facts for 18 August 1994

On 18 August 1994, 1,027 weather records were set or tied at long-record stations worldwide.
391 were record highs and 242 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 35 monthly and 985 daily.
Wilkes Barre set a daily record precipitation of 83.3 mm (3.3 in) on 18 August 1994.
Across 171 earlier years (1797 to 2026) the same calendar date averaged 437 records.

Record Map

1,027 stations

1,027 station records on 18 August 1994 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 August 1994: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wilkes Barre	United States	Record daily precipitation	83.3 mm (3.3 in)	77 of 100 (Major)
Le Roy	United States	Record daily precipitation	109.2 mm (4.3 in)	73 of 100 (Major)
Renovo	United States	Record daily precipitation	88.4 mm (3.5 in)	70 of 100 (Major)
Ithaca Cornell UNIV	United States	Record daily precipitation	78.7 mm (3.1 in)	68 of 100 (Major)
Morrisville 6 SW	United States	Record daily precipitation	74.7 mm (2.9 in)	66 of 100 (Major)
Ronneby-Bredakra	Sweden	Record daily precipitation	127.1 mm (5.0 in)	65 of 100 (Major)
Wellsboro 4 SW	United States	Record daily precipitation	78.7 mm (3.1 in)	65 of 100 (Major)
Konga	Sweden	Record daily precipitation	88.2 mm (3.5 in)	63 of 100 (Major)
Chemung	United States	Record daily precipitation	86.1 mm (3.4 in)	63 of 100 (Major)
Locke 2 W	United States	Record daily precipitation	100.3 mm (3.9 in)	62 of 100 (Major)
Greensboro Lock 7	United States	Record daily precipitation	67.3 mm (2.6 in)	60 of 100 (Major)
Glenville	United States	Record daily precipitation	65.0 mm (2.6 in)	60 of 100 (Major)
Mjuamala	Sweden	Record daily precipitation	70.6 mm (2.8 in)	59 of 100 (Notable)
Augusta Bush Fld AP	United States	Record daily precipitation	106.9 mm (4.2 in)	59 of 100 (Notable)
Ventspils	Latvia	Record daily precipitation	46.0 mm (1.8 in)	58 of 100 (Notable)
Troupsburg 4 NE	United States	Record daily precipitation	68.1 mm (2.7 in)	58 of 100 (Notable)
Holtwood	United States	Record daily precipitation	83.8 mm (3.3 in)	58 of 100 (Notable)
Creston	United States	Record daily precipitation	73.9 mm (2.9 in)	58 of 100 (Notable)
Zeja	Russia	Record daily precipitation	102.1 mm (4.0 in)	57 of 100 (Notable)
Kalmar_D	Sweden	Record daily precipitation	47.0 mm (1.9 in)	57 of 100 (Notable)
Churumuco (Cfe)	Mexico	Record daily precipitation	63.5 mm (2.5 in)	56 of 100 (Notable)
Olastorp	Sweden	Record daily precipitation	37.5 mm (1.5 in)	56 of 100 (Notable)
Glens Falls AP	United States	Record daily precipitation	63.0 mm (2.5 in)	56 of 100 (Notable)
Komstorp	Sweden	Record daily precipitation	64.2 mm (2.5 in)	55 of 100 (Notable)
Nybro-Slattingebygd D	Sweden	Record daily precipitation	55.6 mm (2.2 in)	55 of 100 (Notable)
Warrenton 3 SE	United States	Record daily precipitation	80.5 mm (3.2 in)	55 of 100 (Notable)
Spencer	United States	Record daily precipitation	62.0 mm (2.4 in)	55 of 100 (Notable)
Simrishamn	Sweden	Record daily precipitation	47.9 mm (1.9 in)	54 of 100 (Notable)
Lees Ferry	United States	Record daily precipitation	44.5 mm (1.8 in)	54 of 100 (Notable)
Hamburg Fuhlsbuettel	Germany	Record daily precipitation	68.2 mm (2.7 in)	53 of 100 (Notable)
Botlih	Russia	Record daily precipitation	47.8 mm (1.9 in)	53 of 100 (Notable)
Americus	United States	Record daily precipitation	55.6 mm (2.2 in)	53 of 100 (Notable)
Corning	United States	Record daily precipitation	70.9 mm (2.8 in)	53 of 100 (Notable)
Utica Oneida Co AP	United States	Record daily precipitation	66.8 mm (2.6 in)	52 of 100 (Notable)
Weston	United States	Record daily precipitation	52.1 mm (2.1 in)	51 of 100 (Notable)
Ciudad Santos	Mexico	Record low minimum temperature	11.7 C (53.1 F)	50 of 100 (Notable)
Lessebo	Sweden	Record daily precipitation	41.6 mm (1.6 in)	50 of 100 (Notable)
Sinnemahoning	United States	Record daily precipitation	89.4 mm (3.5 in)	50 of 100 (Notable)
S Mtn	United States	Record daily precipitation	86.4 mm (3.4 in)	50 of 100 (Notable)
Lenzen/Elbe	Germany	Record daily precipitation	36.3 mm (1.4 in)	49 of 100 (Notable)
Segerstad	Sweden	Record daily precipitation	64.0 mm (2.5 in)	49 of 100 (Notable)
Cresco 1 NE	United States	Record daily precipitation	89.9 mm (3.5 in)	48 of 100 (Notable)
Haverhill	United States	Record daily precipitation	67.3 mm (2.6 in)	48 of 100 (Notable)
Zuni	United States	Record high minimum temperature	23.3 C (73.9 F)	48 of 100 (Notable)
Hamburg-Wandsbek	Germany	Record daily precipitation	58.9 mm (2.3 in)	47 of 100 (Notable)
Frankfort Lock 19	United States	Record daily precipitation	62.7 mm (2.5 in)	47 of 100 (Notable)
Freeville 1 NE	United States	Record daily precipitation	66.5 mm (2.6 in)	47 of 100 (Notable)
Sherburne	United States	Record daily precipitation	49.8 mm (2.0 in)	47 of 100 (Notable)
State College	United States	Record daily precipitation	93.0 mm (3.7 in)	47 of 100 (Notable)
Weston	United States	Record low maximum temperature	19.4 C (66.9 F)	47 of 100 (Notable)
Boizenburg	Germany	Record daily precipitation	43.5 mm (1.7 in)	46 of 100 (Notable)
Brandenburg-Gorden	Germany	Record daily precipitation	29.3 mm (1.2 in)	46 of 100 (Notable)
Chilchotla (Cfe)	Mexico	Record daily precipitation	65.0 mm (2.6 in)	46 of 100 (Notable)
Candor 2SE	United States	Record daily precipitation	77.5 mm (3.1 in)	46 of 100 (Notable)
Towanda 1 S	United States	Record daily precipitation	56.6 mm (2.2 in)	46 of 100 (Notable)
Genthin	Germany	Record daily precipitation	31.4 mm (1.2 in)	45 of 100 (Notable)
Hillsboro	United States	Record high maximum temperature	37.8 C (100.0 F)	45 of 100 (Notable)
Lindley 2N	United States	Record daily precipitation	77.5 mm (3.1 in)	45 of 100 (Notable)
Staunton Wtp	United States	Record daily precipitation	49.5 mm (1.9 in)	45 of 100 (Notable)
Grambek	Germany	Record daily precipitation	35.7 mm (1.4 in)	44 of 100 (Notable)

Counts by Type and Timescale

1,027 records

Records set or tied on 18 August 1994 by type: Highest daily maximum 189, Lowest daily maximum 134, Highest daily minimum 202, Lowest daily minimum 108, Heaviest daily rainfall 394.

Records on 18 August 1994 by type
Record type	Records
Highest daily maximum	189
Lowest daily maximum	134
Highest daily minimum	202
Lowest daily minimum	108
Heaviest daily rainfall	394
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 August 1994 by timescale: all-time 7, monthly 35, daily 985.

How Much Records Were Beaten By

775 broken records

Margins by which the 775 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 81.0. Ties are not counted.

Top 20 by Significance

18 August 1994

Top 20 records on 18 August 1994 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 August 1994	Wilkes Barre, US	daily rain	83.3 mm (3.3 in)	58.4 mm (2.3 in)	92 years	77 of 100 (Major)
18 August 1994	Le Roy, US	monthly rain	109.2 mm (4.3 in)	33.0 mm (1.3 in)	82 years	73 of 100 (Major)
18 August 1994	Renovo, US	daily rain	88.4 mm (3.5 in)	44.7 mm (1.8 in)	75 years	70 of 100 (Major)
18 August 1994	Ithaca Cornell UNIV, US	daily rain	78.7 mm (3.1 in)	38.8 mm (1.5 in)	80 years	68 of 100 (Major)
18 August 1994	Morrisville 6 SW, US	daily rain	74.7 mm (2.9 in)	51.3 mm (2.0 in)	61 years	66 of 100 (Major)
18 August 1994	Ronneby-Bredakra, SE	all-time rain	127.1 mm (5.0 in)	69.2 mm (2.7 in)	4 years	65 of 100 (Major)
18 August 1994	Wellsboro 4 SW, US	daily rain	78.7 mm (3.1 in)	60.4 mm (2.4 in)	65 years	65 of 100 (Major)
18 August 1994	Konga, SE	all-time rain	88.2 mm (3.5 in)	40.2 mm (1.6 in)	3 years	63 of 100 (Major)
18 August 1994	Chemung, US	monthly rain	86.1 mm (3.4 in)	31.2 mm (1.2 in)	45 years	63 of 100 (Major)
18 August 1994	Locke 2 W, US	daily rain	100.3 mm (3.9 in)	74.1 mm (2.9 in)	56 years	62 of 100 (Major)
18 August 1994	Greensboro Lock 7, US	daily rain	67.3 mm (2.6 in)	32.5 mm (1.3 in)	68 years	60 of 100 (Major)
18 August 1994	Glenville, US	daily rain	65.0 mm (2.6 in)	25.9 mm (1.0 in)	105 years	60 of 100 (Major)
18 August 1994	Mjuamala, SE	all-time rain	70.6 mm (2.8 in)	16.8 mm (0.7 in)	24 years	59 of 100 (Notable)
18 August 1994	Augusta Bush Fld AP, US	daily rain	106.9 mm (4.2 in)	81.0 mm (3.2 in)	47 years	59 of 100 (Notable)
18 August 1994	Ventspils, LV	daily rain	46.0 mm (1.8 in)	16.0 mm (0.6 in)	88 years	58 of 100 (Notable)
18 August 1994	Troupsburg 4 NE, US	daily rain	68.1 mm (2.7 in)	44.2 mm (1.7 in)	44 years	58 of 100 (Notable)
18 August 1994	Holtwood, US	daily rain	83.8 mm (3.3 in)	39.3 mm (1.5 in)	75 years	58 of 100 (Notable)
18 August 1994	Creston, US	daily rain	73.9 mm (2.9 in)	30.5 mm (1.2 in)	85 years	58 of 100 (Notable)
18 August 1994	Zeja, RU	daily rain	102.1 mm (4.0 in)	76.7 mm (3.0 in)	44 years	57 of 100 (Notable)
18 August 1994	Kalmar_D, SE	daily rain	47.0 mm (1.9 in)	16.2 mm (0.6 in)	71 years	57 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 1994

Records set or tied on this calendar date in each year from 1797 to 1994. 1994 had 1,027 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 1994-08-18: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	654
20 to 40	83
40 to 60	31
60 to 80	6
80 to 100	1