Weather Records on 18 September 2026

864 weather records were set or tied worldwide on 18 September 2026. Highest significance: Riversdale, ZA.

Key Facts for 18 September 2026

On 18 September 2026, 864 weather records were set or tied at long-record stations worldwide.
724 were record highs and 21 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 15 monthly and 847 daily.
Riversdale set a daily record precipitation of 36.0 mm (1.4 in) on 18 September 2026 (provisional).
Across 163 earlier years (1803 to 2025) the same calendar date averaged 419 records.

Record Map

864 stations

864 station records on 18 September 2026 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 2026: highest significance records shown on the map
Station	Country	Type	Value	Significance
Riversdale	South Africa	Record daily precipitation	36.0 mm (1.4 in)	70 of 100 (Major)
Kolka	Latvia	Record daily precipitation	43.4 mm (1.7 in)	68 of 100 (Major)
Fraserburg	South Africa	Record daily precipitation	109.0 mm (4.3 in)	61 of 100 (Major)
Rucava	Latvia	Record daily precipitation	89.9 mm (3.5 in)	60 of 100 (Major)
Ristna	Estonia	Record daily precipitation	114.0 mm (4.5 in)	57 of 100 (Notable)
Jemez Dam	United States	Record daily precipitation	48.0 mm (1.9 in)	55 of 100 (Notable)
Waynesboro	United States	Record high minimum temperature	25.0 C (77.0 F)	53 of 100 (Notable)
Fukui	Japan	Record daily precipitation	146.5 mm (5.8 in)	52 of 100 (Notable)
Esperance Post Office	Australia	Record high minimum temperature	18.0 C (64.4 F)	50 of 100 (Notable)
Suwa	Japan	Record daily precipitation	175.5 mm (6.9 in)	49 of 100 (Notable)
Chilpancingo Ro.	Mexico	Record low maximum temperature	20.2 C (68.4 F)	48 of 100 (Notable)
Robinson	United States	Record high maximum temperature	37.2 C (99.0 F)	48 of 100 (Notable)
Moose	United States	Record daily precipitation	29.7 mm (1.2 in)	47 of 100 (Notable)
La Crosse Muni AP	United States	Record daily precipitation	55.9 mm (2.2 in)	47 of 100 (Notable)
Osaka	Japan	Record daily precipitation	119.0 mm (4.7 in)	46 of 100 (Notable)
Elliot	South Africa	Record daily precipitation	71.0 mm (2.8 in)	46 of 100 (Notable)
Crested Butte	United States	Record high minimum temperature	8.3 C (46.9 F)	46 of 100 (Notable)
Steamboat Springs	United States	Record high minimum temperature	9.4 C (48.9 F)	45 of 100 (Notable)
Ashton 1N	United States	Record daily precipitation	25.4 mm (1.0 in)	45 of 100 (Notable)
Little Red School House	United States	Record daily precipitation	57.2 mm (2.3 in)	45 of 100 (Notable)
State College	United States	Record high minimum temperature	20.6 C (69.1 F)	44 of 100 (Notable)
Brownsville	United States	Record high minimum temperature	27.2 C (81.0 F)	44 of 100 (Notable)
Winston Salem Reynolds AP	United States	Record high minimum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
McAlester Rgnl AP	United States	Record high maximum temperature	38.9 C (102.0 F)	44 of 100 (Notable)
Pbo Anantapur	India	Record high minimum temperature	28.4 C (83.1 F)	43 of 100 (Notable)
Hardy	United States	Record high maximum temperature	36.7 C (98.1 F)	43 of 100 (Notable)
Hardy	United States	Record high minimum temperature	23.3 C (73.9 F)	43 of 100 (Notable)
Jacksonville 2E	United States	Record high maximum temperature	36.7 C (98.1 F)	43 of 100 (Notable)
W Lafayette 6 NW	United States	Record high maximum temperature	35.0 C (95.0 F)	43 of 100 (Notable)
Yates Ctr	United States	Record high minimum temperature	23.3 C (73.9 F)	43 of 100 (Notable)
Van Wert 1 S	United States	Record daily precipitation	43.2 mm (1.7 in)	43 of 100 (Notable)
Helena 1 SSE	United States	Record high maximum temperature	38.9 C (102.0 F)	43 of 100 (Notable)
Hallettsville 2 N	United States	Record high minimum temperature	26.1 C (79.0 F)	43 of 100 (Notable)
Utah Test Range	United States	Record daily precipitation	25.4 mm (1.0 in)	43 of 100 (Notable)
Rock Creek	United States	Record daily precipitation	45.7 mm (1.8 in)	43 of 100 (Notable)
Albany	Australia	Record high maximum temperature	27.5 C (81.5 F)	42 of 100 (Notable)
Olmsted L&D	United States	Record high maximum temperature	36.1 C (97.0 F)	42 of 100 (Notable)
Osage City	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Muskogee	United States	Record high maximum temperature	38.3 C (100.9 F)	42 of 100 (Notable)
Franklin	United States	Record high minimum temperature	18.9 C (66.0 F)	42 of 100 (Notable)
Horse Ridge	United States	Record daily precipitation	38.1 mm (1.5 in)	42 of 100 (Notable)
Falls City Brenner Fld	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Kazalinsk	Kazakhstan	Record high minimum temperature	17.2 C (63.0 F)	41 of 100 (Notable)
Guadalajara	Mexico	Record high maximum temperature	36.9 C (98.4 F)	41 of 100 (Notable)
Toluca (Obs)	Mexico	Record high maximum temperature	34.2 C (93.6 F)	41 of 100 (Notable)
Jonesboro 3 SSE	United States	Record high maximum temperature	37.8 C (100.0 F)	41 of 100 (Notable)
Mt Vernon	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Spavinaw	United States	Record high maximum temperature	37.2 C (99.0 F)	41 of 100 (Notable)
Lebanon	United States	Record high minimum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Corsicana	United States	Record high maximum temperature	38.3 C (100.9 F)	41 of 100 (Notable)
Snake Creek Powerhouse	United States	Record high minimum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Idaho Falls - Kifi	United States	Record daily precipitation	34.5 mm (1.4 in)	40 of 100 (Notable)
Plainville 4WNW	United States	Record high maximum temperature	38.3 C (100.9 F)	40 of 100 (Notable)
Rolla Missouri S&T	United States	Record high minimum temperature	23.9 C (75.0 F)	40 of 100 (Notable)
Sedalia Wtp	United States	Record high maximum temperature	36.1 C (97.0 F)	40 of 100 (Notable)
Morrilton	United States	Record high maximum temperature	36.7 C (98.1 F)	39 of 100 (Notable)
1 WSW Princeton	United States	Record high minimum temperature	23.3 C (73.9 F)	39 of 100 (Notable)
Shoals 8 S	United States	Record high maximum temperature	36.7 C (98.1 F)	39 of 100 (Notable)
Spavinaw	United States	Record high minimum temperature	26.1 C (79.0 F)	39 of 100 (Notable)
Hannibal Wtr Wks	United States	Record high minimum temperature	23.3 C (73.9 F)	38 of 100 (Notable)

Counts by Type and Timescale

864 records

Records set or tied on 18 September 2026 by type: Highest daily maximum 269, Lowest daily maximum 8, Highest daily minimum 455, Lowest daily minimum 13, Heaviest daily rainfall 119.

Records on 18 September 2026 by type
Record type	Records
Highest daily maximum	269
Lowest daily maximum	8
Highest daily minimum	455
Lowest daily minimum	13
Heaviest daily rainfall	119
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 September 2026 by timescale: all-time 2, monthly 15, daily 847.

How Much Records Were Beaten By

634 broken records

Margins by which the 634 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 99.6. Ties are not counted.

Top 20 by Significance

18 September 2026

Top 20 records on 18 September 2026 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 2026	Riversdale, ZA	daily rain (Provisional)	36.0 mm (1.4 in)	22.8 mm (0.9 in)	112 years	70 of 100 (Major)
18 September 2026	Kolka, LV	daily rain (Provisional)	43.4 mm (1.7 in)	24.9 mm (1.0 in)	68 years	68 of 100 (Major)
18 September 2026	Fraserburg, ZA	all-time rain (Provisional)	109.0 mm (4.3 in)	1.0 mm (0.04 in)	136 years	61 of 100 (Major)
18 September 2026	Rucava, LV	daily rain (Provisional)	89.9 mm (3.5 in)	76.2 mm (3.0 in)	47 years	60 of 100 (Major)
18 September 2026	Ristna, EE	monthly rain (Provisional)	114.0 mm (4.5 in)	33.6 mm (1.3 in)	0 years	57 of 100 (Notable)
18 September 2026	Jemez Dam, US	monthly rain (Provisional)	48.0 mm (1.9 in)	18.3 mm (0.7 in)	20 years	55 of 100 (Notable)
18 September 2026	Waynesboro, US	monthly high min (Provisional)	25.0 C (77.0 F)	1.7 C (3.1 F)	116 years	53 of 100 (Notable)
18 September 2026	Fukui, JP	daily rain (Provisional)	146.5 mm (5.8 in)	58.9 mm (2.3 in)	60 years	52 of 100 (Notable)
18 September 2026	Esperance Post Office, AU	daily high min (Provisional)	18.0 C (64.4 F)	3.0 C (5.4 F)	100 years	50 of 100 (Notable)
18 September 2026	Suwa, JP	daily rain (Provisional)	175.5 mm (6.9 in)	99.6 mm (3.9 in)	9 years	49 of 100 (Notable)
18 September 2026	Chilpancingo Ro., MX	daily low max (Provisional)	20.2 C (68.4 F)	5.8 C (10.4 F)	47 years	48 of 100 (Notable)
18 September 2026	Robinson, US	daily high max (Provisional)	37.2 C (99.0 F)	3.9 C (7.0 F)	117 years	48 of 100 (Notable)
18 September 2026	Moose, US	daily rain (Provisional)	29.7 mm (1.2 in)	12.2 mm (0.5 in)	64 years	47 of 100 (Notable)
18 September 2026	La Crosse Muni AP, US	daily rain (Provisional)	55.9 mm (2.2 in)	25.7 mm (1.0 in)	65 years	47 of 100 (Notable)
18 September 2026	Osaka, JP	daily rain (Provisional)	119.0 mm (4.7 in)	75.6 mm (3.0 in)	4 years	46 of 100 (Notable)
18 September 2026	Elliot, ZA	daily rain (Provisional)	71.0 mm (2.8 in)	15.6 mm (0.6 in)	81 years	46 of 100 (Notable)
18 September 2026	Crested Butte, US	daily high min (Provisional)	8.3 C (46.9 F)	2.2 C (4.0 F)	100 years	46 of 100 (Notable)
18 September 2026	Steamboat Springs, US	daily high min (Provisional)	9.4 C (48.9 F)	2.2 C (4.0 F)	100 years	45 of 100 (Notable)
18 September 2026	Ashton 1N, US	daily rain (Provisional)	25.4 mm (1.0 in)	8.1 mm (0.32 in)	79 years	45 of 100 (Notable)
18 September 2026	Little Red School House, US	daily rain (Provisional)	57.2 mm (2.3 in)	46.5 mm (1.8 in)	24 years	45 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 2026

Records set or tied on this calendar date in each year from 1803 to 2026. 2026 had 864 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 2026-09-18: 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Margin	Records
0 to 20	618
20 to 40	10
40 to 60	3
60 to 80	2
80 to 100	1