Weather Records on 18 September 1959

829 weather records were set or tied worldwide on 18 September 1959. Highest significance: Vacaville, US.

Key Facts for 18 September 1959

On 18 September 1959, 829 weather records were set or tied at long-record stations worldwide.
27 were record highs and 535 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 36 monthly and 793 daily.
Vacaville set a monthly record daily precipitation of 94.7 mm (3.7 in) on 18 September 1959.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 419 records.

Record Map

829 stations

829 station records on 18 September 1959 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 1959: highest significance records shown on the map
Station	Country	Type	Value	Significance
Vacaville	United States	Record daily precipitation	94.7 mm (3.7 in)	72 of 100 (Major)
Redwood City	United States	Record daily precipitation	77.5 mm (3.1 in)	69 of 100 (Major)
Yosemite Park HQ	United States	Record daily precipitation	81.3 mm (3.2 in)	69 of 100 (Major)
Santa Cruz	United States	Record daily precipitation	68.8 mm (2.7 in)	64 of 100 (Major)
Lodi	United States	Record daily precipitation	51.3 mm (2.0 in)	63 of 100 (Major)
Napa State Hospital	United States	Record daily precipitation	47.5 mm (1.9 in)	62 of 100 (Major)
Woodland 1 WNW	United States	Record daily precipitation	32.3 mm (1.3 in)	61 of 100 (Major)
San Jose	United States	Record daily precipitation	50.8 mm (2.0 in)	58 of 100 (Notable)
Hollister 1 SW	United States	Record daily precipitation	57.9 mm (2.3 in)	57 of 100 (Notable)
Los Gatos	United States	Record daily precipitation	91.7 mm (3.6 in)	57 of 100 (Notable)
Modesto AP	United States	Record daily precipitation	47.2 mm (1.9 in)	57 of 100 (Notable)
Dudleys	United States	Record daily precipitation	87.4 mm (3.4 in)	56 of 100 (Notable)
Healdsburg	United States	Record daily precipitation	114.8 mm (4.5 in)	56 of 100 (Notable)
Petaluma AP	United States	Record daily precipitation	47.0 mm (1.9 in)	56 of 100 (Notable)
Santa Rosa	United States	Record daily precipitation	71.6 mm (2.8 in)	56 of 100 (Notable)
Cranbrook (Cranbrook House)	Australia	Record daily precipitation	68.6 mm (2.7 in)	55 of 100 (Notable)
Represa	United States	Record daily precipitation	42.7 mm (1.7 in)	55 of 100 (Notable)
San Mateo	United States	Record daily precipitation	55.4 mm (2.2 in)	55 of 100 (Notable)
Newman	United States	Record daily precipitation	34.3 mm (1.4 in)	54 of 100 (Notable)
Graton	United States	Record daily precipitation	106.2 mm (4.2 in)	53 of 100 (Notable)
Saint Helena	United States	Record daily precipitation	93.0 mm (3.7 in)	53 of 100 (Notable)
Stony Gorge Rsvr	United States	Record daily precipitation	33.3 mm (1.3 in)	53 of 100 (Notable)
Huntington	United States	Record daily precipitation	38.1 mm (1.5 in)	53 of 100 (Notable)
Dewan	India	Record daily precipitation	125.7 mm (4.9 in)	51 of 100 (Notable)
Deer Creek Ph	United States	Record daily precipitation	86.1 mm (3.4 in)	51 of 100 (Notable)
Scotia	United States	Record daily precipitation	34.0 mm (1.3 in)	51 of 100 (Notable)
Fairbury 7S	United States	Record daily precipitation	60.5 mm (2.4 in)	51 of 100 (Notable)
San Francisco Dwtn	United States	Record daily precipitation	51.1 mm (2.0 in)	51 of 100 (Notable)
Lake Spaulding	United States	Record daily precipitation	64.3 mm (2.5 in)	50 of 100 (Notable)
Ft Ross	United States	Record daily precipitation	85.3 mm (3.4 in)	49 of 100 (Notable)
Santa Clara UNIV	United States	Record daily precipitation	57.4 mm (2.3 in)	49 of 100 (Notable)
Ukiah	United States	Record daily precipitation	48.5 mm (1.9 in)	49 of 100 (Notable)
Wallace	United States	Record daily precipitation	44.7 mm (1.8 in)	48 of 100 (Notable)
Las Plumas	United States	Record daily precipitation	77.0 mm (3.0 in)	47 of 100 (Notable)
Colfax	United States	Record daily precipitation	53.8 mm (2.1 in)	46 of 100 (Notable)
Dunnigan	United States	Record daily precipitation	58.4 mm (2.3 in)	46 of 100 (Notable)
Upper Lake 2 N	United States	Record daily precipitation	53.3 mm (2.1 in)	46 of 100 (Notable)
Burnley Richmond Park	Australia	Record daily precipitation	39.4 mm (1.6 in)	45 of 100 (Notable)
Marysville	United States	Record daily precipitation	41.7 mm (1.6 in)	45 of 100 (Notable)
Bacchus Marsh	Australia	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Truckee Rs	United States	Record daily precipitation	28.7 mm (1.1 in)	44 of 100 (Notable)
Hays 1 S	United States	Record daily precipitation	54.9 mm (2.2 in)	44 of 100 (Notable)
Bowman Dam	United States	Record daily precipitation	66.5 mm (2.6 in)	43 of 100 (Notable)
Chico UNIV Farm	United States	Record daily precipitation	47.2 mm (1.9 in)	43 of 100 (Notable)
Quincy	United States	Record daily precipitation	55.4 mm (2.2 in)	43 of 100 (Notable)
Sacramento 5 ESE	United States	Record daily precipitation	37.1 mm (1.5 in)	43 of 100 (Notable)
Hayfork 2 W	United States	Record daily precipitation	41.4 mm (1.6 in)	42 of 100 (Notable)
Setauket Strong	United States	Record low minimum temperature	3.3 C (37.9 F)	42 of 100 (Notable)
Bison 3NW	United States	Record daily precipitation	56.1 mm (2.2 in)	41 of 100 (Notable)
Fairmont	United States	Record daily precipitation	50.0 mm (2.0 in)	41 of 100 (Notable)
Berkeley	United States	Record daily precipitation	64.0 mm (2.5 in)	40 of 100 (Notable)
Lakeport	United States	Record daily precipitation	31.0 mm (1.2 in)	40 of 100 (Notable)
Western 2W	United States	Record daily precipitation	59.2 mm (2.3 in)	40 of 100 (Notable)
Centerville Ph	United States	Record daily precipitation	46.7 mm (1.8 in)	39 of 100 (Notable)
Kentfield	United States	Record daily precipitation	97.8 mm (3.9 in)	39 of 100 (Notable)
Lichtentanne	Germany	Record low minimum temperature	1.1 C (34.0 F)	38 of 100 (Notable)
Ft Bragg 5 N	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Tiger Creek Ph	United States	Record daily precipitation	63.5 mm (2.5 in)	38 of 100 (Notable)
Aklavik A	Canada	Record daily snowfall	8.6 cm (3.4 in)	37 of 100 (Notable)
Topchanchi	India	Record daily precipitation	100.4 mm (4.0 in)	37 of 100 (Notable)

Counts by Type and Timescale

829 records

Records set or tied on 18 September 1959 by type: Highest daily maximum 4, Lowest daily maximum 275, Highest daily minimum 23, Lowest daily minimum 260, Heaviest daily rainfall 264, Heaviest daily snowfall 2, Deepest snow cover 1.

Records on 18 September 1959 by type
Record type	Records
Highest daily maximum	4
Lowest daily maximum	275
Highest daily minimum	23
Lowest daily minimum	260
Heaviest daily rainfall	264
Heaviest daily snowfall	2
Deepest snow cover	1

Records on 18 September 1959 by timescale: all-time 0, monthly 36, daily 793.

How Much Records Were Beaten By

673 broken records

Margins by which the 673 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 88.7. Ties are not counted.

Top 20 by Significance

18 September 1959

Top 20 records on 18 September 1959 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 1959	Vacaville, US	monthly rain	94.7 mm (3.7 in)	43.9 mm (1.7 in)	54 years	72 of 100 (Major)
18 September 1959	Redwood City, US	monthly rain	77.5 mm (3.1 in)	60.7 mm (2.4 in)	49 years	69 of 100 (Major)
18 September 1959	Yosemite Park HQ, US	monthly rain	81.3 mm (3.2 in)	48.3 mm (1.9 in)	47 years	69 of 100 (Major)
18 September 1959	Santa Cruz, US	daily rain	68.8 mm (2.7 in)	67.5 mm (2.7 in)	62 years	64 of 100 (Major)
18 September 1959	Lodi, US	monthly rain	51.3 mm (2.0 in)	21.3 mm (0.8 in)	64 years	63 of 100 (Major)
18 September 1959	Napa State Hospital, US	daily rain	47.5 mm (1.9 in)	40.9 mm (1.6 in)	62 years	62 of 100 (Major)
18 September 1959	Woodland 1 WNW, US	monthly rain	32.3 mm (1.3 in)	15.5 mm (0.6 in)	47 years	61 of 100 (Major)
18 September 1959	San Jose, US	daily rain	50.8 mm (2.0 in)	50.5 mm (2.0 in)	62 years	58 of 100 (Notable)
18 September 1959	Hollister 1 SW, US	daily rain	57.9 mm (2.3 in)	51.8 mm (2.0 in)	37 years	57 of 100 (Notable)
18 September 1959	Los Gatos, US	daily rain	91.7 mm (3.6 in)	88.7 mm (3.5 in)	37 years	57 of 100 (Notable)
18 September 1959	Modesto AP, US	monthly rain	47.2 mm (1.9 in)	28.4 mm (1.1 in)	9 years	57 of 100 (Notable)
18 September 1959	Dudleys, US	monthly rain	87.4 mm (3.4 in)	31.3 mm (1.2 in)	20 years	56 of 100 (Notable)
18 September 1959	Healdsburg, US	monthly rain	114.8 mm (4.5 in)	36.1 mm (1.4 in)	47 years	56 of 100 (Notable)
18 September 1959	Petaluma AP, US	daily rain	47.0 mm (1.9 in)	45.5 mm (1.8 in)	33 years	56 of 100 (Notable)
18 September 1959	Santa Rosa, US	daily rain	71.6 mm (2.8 in)	69.1 mm (2.7 in)	37 years	56 of 100 (Notable)
18 September 1959	Cranbrook (Cranbrook House), AU	monthly rain	68.6 mm (2.7 in)	17.8 mm (0.7 in)	48 years	55 of 100 (Notable)
18 September 1959	Represa, US	monthly rain	42.7 mm (1.7 in)	16.3 mm (0.6 in)	54 years	55 of 100 (Notable)
18 September 1959	San Mateo, US	monthly rain	55.4 mm (2.2 in)	36.9 mm (1.5 in)	1 year	55 of 100 (Notable)
18 September 1959	Newman, US	daily rain	34.3 mm (1.4 in)	30.2 mm (1.2 in)	37 years	54 of 100 (Notable)
18 September 1959	Graton, US	monthly rain	106.2 mm (4.2 in)	47.8 mm (1.9 in)	1 year	53 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

1803 to 1959

Records set or tied on this calendar date in each year from 1803 to 1959. 1959 had 829 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 1959-09-18: 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 20	597
20 to 40	47
40 to 60	20
60 to 80	8
80 to 100	1