Weather Records on 18 September 1955

672 weather records were set or tied worldwide on 18 September 1955. Highest significance: Smith 1 N, US.

Key Facts for 18 September 1955

On 18 September 1955, 672 weather records were set or tied at long-record stations worldwide.
508 were record highs and 45 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 9 monthly and 662 daily.
Smith 1 N set a monthly record daily precipitation of 29.2 mm (1.1 in) on 18 September 1955.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 420 records.

Record Map

672 stations

672 station records on 18 September 1955 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 1955: highest significance records shown on the map
Station	Country	Type	Value	Significance
Smith 1 N	United States	Record daily precipitation	29.2 mm (1.1 in)	65 of 100 (Major)
Wauneta	United States	Record daily precipitation	58.4 mm (2.3 in)	46 of 100 (Notable)
Lower Bucca	Australia	Record daily precipitation	106.2 mm (4.2 in)	43 of 100 (Notable)
Japaratuba	Brazil	Record daily precipitation	61.0 mm (2.4 in)	42 of 100 (Notable)
Lodi	United States	Record daily precipitation	25.7 mm (1.0 in)	40 of 100 (Notable)
Shirol	India	Record daily precipitation	54.6 mm (2.1 in)	37 of 100 (Notable)
Uman	Ukraine	Record daily precipitation	28.6 mm (1.1 in)	37 of 100 (Notable)
Yerington	United States	Record daily precipitation	51.3 mm (2.0 in)	37 of 100 (Notable)
Hannah 2 N	United States	Record daily precipitation	53.6 mm (2.1 in)	37 of 100 (Notable)
Stewarts River Public School	Australia	Record daily precipitation	91.2 mm (3.6 in)	36 of 100 (Notable)
Eureka	United States	Record low maximum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
Kampli	India	Record daily precipitation	76.2 mm (3.0 in)	34 of 100 (Routine)
Toledo Blade	United States	Record high maximum temperature	35.6 C (96.1 F)	33 of 100 (Routine)
Denver WSO City	United States	Record daily precipitation	25.4 mm (1.0 in)	33 of 100 (Routine)
Chittur	India	Record daily precipitation	49.5 mm (1.9 in)	32 of 100 (Routine)
Lahontan Dam	United States	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Kingsville	United States	Record daily precipitation	48.3 mm (1.9 in)	32 of 100 (Routine)
Moorland (Denro-An)	Australia	Record daily precipitation	67.1 mm (2.6 in)	31 of 100 (Routine)
Arantangi	India	Record daily precipitation	50.8 mm (2.0 in)	31 of 100 (Routine)
Toledo Blade	United States	Record high minimum temperature	21.1 C (70.0 F)	31 of 100 (Routine)
Shawano 2SSW	United States	Record high maximum temperature	35.0 C (95.0 F)	31 of 100 (Routine)
Cidra 1 E	Puerto Rico [United States]	Record low maximum temperature	25.0 C (77.0 F)	30 of 100 (Routine)
Gardiner	United States	Record high maximum temperature	31.1 C (88.0 F)	30 of 100 (Routine)
Petoskey	United States	Record high maximum temperature	34.4 C (93.9 F)	30 of 100 (Routine)
Worthington	United States	Record high minimum temperature	22.8 C (73.0 F)	30 of 100 (Routine)
Kadur	India	Record daily precipitation	46.2 mm (1.8 in)	29 of 100 (Routine)
Simferopol	Ukraine	Record high minimum temperature	16.4 C (61.5 F)	29 of 100 (Routine)
Brooks Farnham Rch	United States	Record daily precipitation	27.4 mm (1.1 in)	29 of 100 (Routine)
Ft Lauderdale	United States	Record high maximum temperature	35.6 C (96.1 F)	29 of 100 (Routine)
Long Prairie	United States	Record high minimum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
New Ulm 2 SE	United States	Record high minimum temperature	23.3 C (73.9 F)	29 of 100 (Routine)
Madison Wb City	United States	Record high maximum temperature	32.2 C (90.0 F)	29 of 100 (Routine)
Bellingen Post Office	Australia	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Woodstock	Canada	Record high maximum temperature	30.6 C (87.1 F)	28 of 100 (Routine)
Lindsay	Canada	Record high maximum temperature	31.1 C (88.0 F)	28 of 100 (Routine)
Pollachi	India	Record daily precipitation	29.2 mm (1.1 in)	28 of 100 (Routine)
Downieville	United States	Record daily precipitation	27.2 mm (1.1 in)	28 of 100 (Routine)
Montezuma 2 NW	United States	Record daily precipitation	32.3 mm (1.3 in)	28 of 100 (Routine)
Cambridge St Hospital	United States	Record high maximum temperature	35.6 C (96.1 F)	28 of 100 (Routine)
Ridgetown	Canada	Record high maximum temperature	32.8 C (91.0 F)	27 of 100 (Routine)
Punalur	India	Record daily precipitation	78.7 mm (3.1 in)	27 of 100 (Routine)
Cambridge City 3 N	United States	Record high maximum temperature	35.0 C (95.0 F)	27 of 100 (Routine)
Little Falls 2NNE	United States	Record high minimum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high minimum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Kohala Mis 175.1	United States	Record low minimum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Ottawa Cda	Canada	Record high maximum temperature	30.6 C (87.1 F)	26 of 100 (Routine)
Lalganj	India	Record daily precipitation	109.2 mm (4.3 in)	26 of 100 (Routine)
Siruguppa	India	Record daily precipitation	79.2 mm (3.1 in)	26 of 100 (Routine)
Ettumanur	India	Record daily precipitation	73.2 mm (2.9 in)	26 of 100 (Routine)
Huntington	United States	Record high maximum temperature	35.6 C (96.1 F)	26 of 100 (Routine)
Eagle Harbor	United States	Record high maximum temperature	29.4 C (84.9 F)	26 of 100 (Routine)
Wayne	United States	Record high maximum temperature	36.1 C (97.0 F)	26 of 100 (Routine)
Schurz	United States	Record daily precipitation	30.2 mm (1.2 in)	26 of 100 (Routine)
Bucyrus	United States	Record high maximum temperature	33.9 C (93.0 F)	26 of 100 (Routine)
Tiffin	United States	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Ketchikan AP	United States	Record daily precipitation	70.6 mm (2.8 in)	26 of 100 (Routine)
Owen Sound	Canada	Record high maximum temperature	31.7 C (89.1 F)	25 of 100 (Routine)
Bhor	India	Record daily precipitation	48.3 mm (1.9 in)	25 of 100 (Routine)
Marion 2 N	United States	Record high maximum temperature	35.0 C (95.0 F)	25 of 100 (Routine)
Farmington	United States	Record high maximum temperature	31.7 C (89.1 F)	25 of 100 (Routine)

Counts by Type and Timescale

672 records

Records set or tied on 18 September 1955 by type: Highest daily maximum 318, Lowest daily maximum 23, Highest daily minimum 190, Lowest daily minimum 22, Heaviest daily rainfall 117, Heaviest daily snowfall 2.

Records on 18 September 1955 by type
Record type	Records
Highest daily maximum	318
Lowest daily maximum	23
Highest daily minimum	190
Lowest daily minimum	22
Heaviest daily rainfall	117
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 18 September 1955 by timescale: all-time 1, monthly 9, daily 662.

How Much Records Were Beaten By

509 broken records

Margins by which the 509 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 51.1. Ties are not counted.

Top 20 by Significance

18 September 1955

Top 20 records on 18 September 1955 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 1955	Smith 1 N, US	monthly rain	29.2 mm (1.1 in)	19.5 mm (0.8 in)	38 years	65 of 100 (Major)
18 September 1955	Wauneta, US	daily rain	58.4 mm (2.3 in)	34.3 mm (1.4 in)	49 years	46 of 100 (Notable)
18 September 1955	Lower Bucca, AU	daily rain	106.2 mm (4.2 in)	51.1 mm (2.0 in)	52 years	43 of 100 (Notable)
18 September 1955	Japaratuba, BR	daily rain	61.0 mm (2.4 in)	24.7 mm (1.0 in)	32 years	42 of 100 (Notable)
18 September 1955	Lodi, US	daily rain	25.7 mm (1.0 in)	24.2 mm (1.0 in)	4 years	40 of 100 (Notable)
18 September 1955	Shirol, IN	daily rain	54.6 mm (2.1 in)	30.2 mm (1.2 in)	36 years	37 of 100 (Notable)
18 September 1955	Uman, UA	daily rain	28.6 mm (1.1 in)	7.9 mm (0.31 in)	65 years	37 of 100 (Notable)
18 September 1955	Yerington, US	all-time rain	51.3 mm (2.0 in)	3.0 mm (0.12 in)	16 years	37 of 100 (Notable)
18 September 1955	Hannah 2 N, US	daily rain	53.6 mm (2.1 in)	26.7 mm (1.1 in)	32 years	37 of 100 (Notable)
18 September 1955	Stewarts River Public School, AU	daily rain	91.2 mm (3.6 in)	40.4 mm (1.6 in)	40 years	36 of 100 (Notable)
18 September 1955	Eureka, US	daily low max	11.7 C (53.1 F)	5.0 C (9.0 F)	66 years	36 of 100 (Notable)
18 September 1955	Kampli, IN	daily rain	76.2 mm (3.0 in)	38.1 mm (1.5 in)	30 years	34 of 100 (Routine)
18 September 1955	Toledo Blade, US	daily high max	35.6 C (96.1 F)	3.4 C (6.1 F)	63 years	33 of 100 (Routine)
18 September 1955	Denver WSO City, US	daily rain	25.4 mm (1.0 in)	17.5 mm (0.7 in)	12 years	33 of 100 (Routine)
18 September 1955	Chittur, IN	daily rain	49.5 mm (1.9 in)	23.3 mm (0.9 in)	22 years	32 of 100 (Routine)
18 September 1955	Lahontan Dam, US	monthly rain	25.9 mm (1.0 in)	7.6 mm (0.30 in)	4 years	32 of 100 (Routine)
18 September 1955	Kingsville, US	daily rain	48.3 mm (1.9 in)	32.3 mm (1.3 in)	41 years	32 of 100 (Routine)
18 September 1955	Moorland (Denro-An), AU	daily rain	67.1 mm (2.6 in)	19.3 mm (0.8 in)	52 years	31 of 100 (Routine)
18 September 1955	Arantangi, IN	daily rain	50.8 mm (2.0 in)	20.3 mm (0.8 in)	42 years	31 of 100 (Routine)
18 September 1955	Toledo Blade, US	daily high min	21.1 C (70.0 F)	1.1 C (2.0 F)	72 years	31 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

1803 to 1955

Records set or tied on this calendar date in each year from 1803 to 1955. 1955 had 672 records.

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

Records on 09-18 in each year
Year	Records
1803	1
1811	1
1814	1
1819	1
1829	1
1832	1
1834	1
1835	1
1837	2
1847	2
1848	1
1849	1
1851	4
1859	1
1861	1
1865	1
1869	1
1871	1
1875	1
1876	2
1877	1
1879	1
1880	1
1881	1
1882	1
1885	1
1886	4
1889	6
1890	1
1891	1
1893	4
1894	2
1895	2
1896	4
1897	3
1898	5
1899	3
1900	2
1901	10
1902	8
1903	58
1904	6
1905	22
1906	16
1907	4
1908	11
1909	17
1910	5
1911	8
1912	43
1913	44
1914	56
1915	41
1916	58
1917	99
1918	57
1919	48
1920	56
1921	213
1922	45
1923	114
1924	62
1925	269
1926	205
1927	189
1928	114
1929	309
1930	124
1931	429
1932	226
1933	370
1934	188
1935	281
1936	155
1937	422
1938	373
1939	190
1940	402
1941	318
1942	1,001
1943	624
1944	503
1945	732
1946	576
1947	927
1948	427
1949	356
1950	370
1951	320
1952	340
1953	245
1954	446
1955	672
1956	587
1957	429
1958	491
1959	829
1960	351
1961	478
1962	360
1963	453
1964	282
1965	1,172
1966	498
1967	357
1968	763
1969	424
1970	377
1971	1,245
1972	691
1973	593
1974	559
1975	976
1976	615
1977	619
1978	1,162
1979	709
1980	652
1981	1,671
1982	603
1983	936
1984	951
1985	636
1986	730
1987	1,244
1988	997
1989	778
1990	904
1991	1,377
1992	821
1993	747
1994	852
1995	935
1996	1,237
1997	935
1998	1,038
1999	583
2000	1,146
2001	993
2002	828
2003	815
2004	1,027
2005	781
2006	1,309
2007	670
2008	697
2009	692
2010	1,040
2011	1,050
2012	922
2013	666
2014	682
2015	934
2016	893
2017	518
2018	1,200
2019	768
2020	682
2021	582
2022	613
2023	639
2024	687
2025	471
2026	864

Download the Data

Data for records on 1955-09-18: 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 10	463
10 to 20	23
20 to 30	11
30 to 40	9
40 to 50	2
50 to 60	1