Weather Records on 4 September 2018

758 weather records were set or tied worldwide on 4 September 2018. Highest significance: Rochester Intl AP, US.

Key Facts for 4 September 2018

On 4 September 2018, 758 weather records were set or tied at long-record stations worldwide.
458 were record highs and 63 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 49 monthly and 706 daily.
Rochester Intl AP set a daily record precipitation of 84.3 mm (3.3 in) on 4 September 2018.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 449 records.

Record Map

758 stations

758 station records on 4 September 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 September 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rochester Intl AP	United States	Record daily precipitation	84.3 mm (3.3 in)	79 of 100 (Major)
Benschop	Netherlands	Record daily precipitation	106.6 mm (4.2 in)	78 of 100 (Major)
Boskoop	Netherlands	Record daily precipitation	118.5 mm (4.7 in)	67 of 100 (Major)
Uzur	Russia	Record daily precipitation	41.9 mm (1.6 in)	67 of 100 (Major)
Komsomolsk-Na-Amure	Russia	Record daily precipitation	65.0 mm (2.6 in)	67 of 100 (Major)
Byfield Childs Road	Australia	Record daily precipitation	83.0 mm (3.3 in)	66 of 100 (Major)
Decorah	United States	Record daily precipitation	55.9 mm (2.2 in)	64 of 100 (Major)
Grundy Ctr	United States	Record daily precipitation	107.4 mm (4.2 in)	64 of 100 (Major)
Mauston 1 SE	United States	Record daily precipitation	144.8 mm (5.7 in)	64 of 100 (Major)
Moloaa 1145	United States	Record daily precipitation	104.1 mm (4.1 in)	63 of 100 (Major)
Tulun	Russia	Record daily precipitation	34.5 mm (1.4 in)	60 of 100 (Major)
Cadzand	Netherlands	Record daily precipitation	40.3 mm (1.6 in)	59 of 100 (Notable)
Freehold-Marlboro	United States	Record high minimum temperature	26.7 C (80.1 F)	57 of 100 (Notable)
Silchar	India	Record daily precipitation	142.0 mm (5.6 in)	55 of 100 (Notable)
Campo 7 S	United States	Record daily precipitation	53.3 mm (2.1 in)	55 of 100 (Notable)
Milford 4 NW	United States	Record daily precipitation	88.9 mm (3.5 in)	55 of 100 (Notable)
Frankfort 2NE	United States	Record daily precipitation	54.6 mm (2.1 in)	55 of 100 (Notable)
Roelofarendsveen	Netherlands	Record daily precipitation	53.0 mm (2.1 in)	54 of 100 (Notable)
Zegveld	Netherlands	Record daily precipitation	71.6 mm (2.8 in)	54 of 100 (Notable)
Gvasjugi	Russia	Record daily precipitation	68.1 mm (2.7 in)	54 of 100 (Notable)
Sioux Rapids	United States	Record daily precipitation	107.4 mm (4.2 in)	54 of 100 (Notable)
Dzerzhinskoe	Russia	Record daily precipitation	34.0 mm (1.3 in)	53 of 100 (Notable)
Bay Minette	United States	Record daily precipitation	210.8 mm (8.3 in)	52 of 100 (Notable)
Chippewa Valley Rgnl AP	United States	Record daily precipitation	77.7 mm (3.1 in)	52 of 100 (Notable)
Norfolk Karl Stefan Mem AP	United States	Record daily precipitation	48.3 mm (1.9 in)	51 of 100 (Notable)
Genoa Dam 8	United States	Record daily precipitation	79.2 mm (3.1 in)	50 of 100 (Notable)
Woodburn Post Office	Australia	Record daily precipitation	26.6 mm (1.0 in)	49 of 100 (Notable)
Krasnojarsk	Russia	Record daily precipitation	45.5 mm (1.8 in)	49 of 100 (Notable)
Marshalltown	United States	Record daily precipitation	73.7 mm (2.9 in)	49 of 100 (Notable)
Vinton	United States	Record daily precipitation	75.4 mm (3.0 in)	48 of 100 (Notable)
Sunnyside - Lund 31S	United States	Record low minimum temperature	-4.4 C (24.1 F)	48 of 100 (Notable)
Notla 3 SE	United States	Record daily precipitation	119.4 mm (4.7 in)	48 of 100 (Notable)
Mingo 6E	United States	Record daily precipitation	36.3 mm (1.4 in)	47 of 100 (Notable)
Kealakekua 26.2	United States	Record high maximum temperature	29.4 C (84.9 F)	47 of 100 (Notable)
Katoomba (Murri St)	Australia	Record daily precipitation	27.0 mm (1.1 in)	46 of 100 (Notable)
Perrine 4W	United States	Record daily precipitation	101.6 mm (4.0 in)	45 of 100 (Notable)
Spencer 1 N	United States	Record daily precipitation	58.7 mm (2.3 in)	45 of 100 (Notable)
Franklinville	United States	Record high minimum temperature	21.1 C (70.0 F)	45 of 100 (Notable)
Brillion	United States	Record daily precipitation	41.9 mm (1.6 in)	45 of 100 (Notable)
Pensacola Rgnl AP	United States	Record daily precipitation	128.5 mm (5.1 in)	45 of 100 (Notable)
Sioux City AP	United States	Record daily precipitation	67.3 mm (2.6 in)	45 of 100 (Notable)
Laghouat	Algeria	Record high minimum temperature	24.5 C (76.1 F)	44 of 100 (Notable)
Casey	United States	Record high minimum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
Plaisance (Mauritiu	Mauritius	Record daily precipitation	42.9 mm (1.7 in)	43 of 100 (Notable)
Waupaca	United States	Record daily precipitation	58.7 mm (2.3 in)	43 of 100 (Notable)
Princeville Rch 1117	United States	Record daily precipitation	37.8 mm (1.5 in)	43 of 100 (Notable)
Logansport Cicott St	United States	Record high minimum temperature	21.1 C (70.0 F)	42 of 100 (Notable)
Kewaunee	United States	Record daily precipitation	67.3 mm (2.6 in)	42 of 100 (Notable)
Newark Liberty Intl AP	United States	Record high minimum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Kingscliff (Marine Parade)	Australia	Record daily precipitation	38.8 mm (1.5 in)	41 of 100 (Notable)
Meldrum (Coolawarrah)	Australia	Record daily precipitation	35.0 mm (1.4 in)	41 of 100 (Notable)
Balmaceda	Chile	Record daily precipitation	34.5 mm (1.4 in)	41 of 100 (Notable)
Passau-Maierhof	Germany	Record daily precipitation	28.0 mm (1.1 in)	41 of 100 (Notable)
Den Helder-1	Netherlands	Record high minimum temperature	18.1 C (64.6 F)	41 of 100 (Notable)
Alpine	United States	Record daily precipitation	38.9 mm (1.5 in)	41 of 100 (Notable)
Greensburg	United States	Record high minimum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Clutier	United States	Record daily precipitation	66.5 mm (2.6 in)	41 of 100 (Notable)
Lowell	United States	Record high minimum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Middleboro	United States	Record high maximum temperature	31.7 C (89.1 F)	41 of 100 (Notable)
Montevideo 1SW	United States	Record daily precipitation	43.2 mm (1.7 in)	41 of 100 (Notable)

Counts by Type and Timescale

758 records

Records set or tied on 4 September 2018 by type: Highest daily maximum 144, Lowest daily maximum 18, Highest daily minimum 314, Lowest daily minimum 45, Heaviest daily rainfall 237.

Records on 4 September 2018 by type
Record type	Records
Highest daily maximum	144
Lowest daily maximum	18
Highest daily minimum	314
Lowest daily minimum	45
Heaviest daily rainfall	237
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 September 2018 by timescale: all-time 3, monthly 49, daily 706.

How Much Records Were Beaten By

531 broken records

Margins by which the 531 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 145.3. Ties are not counted.

Top 20 by Significance

4 September 2018

Top 20 records on 4 September 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 September 2018	Rochester Intl AP, US	daily rain	84.3 mm (3.3 in)	58.9 mm (2.3 in)	97 years	79 of 100 (Major)
4 September 2018	Benschop, NL	all-time rain	106.6 mm (4.2 in)	31.9 mm (1.3 in)	43 years	78 of 100 (Major)
4 September 2018	Boskoop, NL	all-time rain	118.5 mm (4.7 in)	13.2 mm (0.5 in)	67 years	67 of 100 (Major)
4 September 2018	Uzur, RU	daily rain	41.9 mm (1.6 in)	24.8 mm (1.0 in)	64 years	67 of 100 (Major)
4 September 2018	Komsomolsk-Na-Amure, RU	daily rain	65.0 mm (2.6 in)	38.7 mm (1.5 in)	64 years	67 of 100 (Major)
4 September 2018	Byfield Childs Road, AU	daily rain	83.0 mm (3.3 in)	72.8 mm (2.9 in)	59 years	66 of 100 (Major)
4 September 2018	Decorah, US	daily rain	55.9 mm (2.2 in)	35.3 mm (1.4 in)	96 years	64 of 100 (Major)
4 September 2018	Grundy Ctr, US	daily rain	107.4 mm (4.2 in)	66.3 mm (2.6 in)	49 years	64 of 100 (Major)
4 September 2018	Mauston 1 SE, US	monthly rain	144.8 mm (5.7 in)	47.5 mm (1.9 in)	31 years	64 of 100 (Major)
4 September 2018	Moloaa 1145, US	monthly rain	104.1 mm (4.1 in)	23.3 mm (0.9 in)	30 years	63 of 100 (Major)
4 September 2018	Tulun, RU	daily rain	34.5 mm (1.4 in)	17.9 mm (0.7 in)	52 years	60 of 100 (Major)
4 September 2018	Cadzand, NL	daily rain	40.3 mm (1.6 in)	25.0 mm (1.0 in)	44 years	59 of 100 (Notable)
4 September 2018	Freehold-Marlboro, US	monthly high min	26.7 C (80.1 F)	3.4 C (6.1 F)	119 years	57 of 100 (Notable)
4 September 2018	Silchar, IN	daily rain	142.0 mm (5.6 in)	34.0 mm (1.3 in)	100 years	55 of 100 (Notable)
4 September 2018	Campo 7 S, US	daily rain	53.3 mm (2.1 in)	48.2 mm (1.9 in)	32 years	55 of 100 (Notable)
4 September 2018	Milford 4 NW, US	daily rain	88.9 mm (3.5 in)	58.7 mm (2.3 in)	24 years	55 of 100 (Notable)
4 September 2018	Frankfort 2NE, US	daily rain	54.6 mm (2.1 in)	26.2 mm (1.0 in)	79 years	55 of 100 (Notable)
4 September 2018	Roelofarendsveen, NL	daily rain	53.0 mm (2.1 in)	21.7 mm (0.9 in)	44 years	54 of 100 (Notable)
4 September 2018	Zegveld, NL	all-time rain	71.6 mm (2.8 in)	14.2 mm (0.6 in)	13 years	54 of 100 (Notable)
4 September 2018	Gvasjugi, RU	monthly rain	68.1 mm (2.7 in)	13.7 mm (0.5 in)	67 years	54 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

1802 to 2018

Records set or tied on this calendar date in each year from 1802 to 2018. 2018 had 758 records.

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

Records on 09-04 in each year
Year	Records
1802	1
1805	1
1823	1
1833	1
1837	1
1839	1
1845	1
1847	1
1850	1
1854	1
1856	1
1857	1
1858	1
1861	1
1863	1
1864	1
1867	1
1868	1
1869	2
1871	1
1872	4
1874	1
1875	1
1877	1
1880	4
1881	1
1883	2
1885	3
1887	1
1888	2
1889	1
1890	1
1891	5
1894	4
1895	6
1896	1
1897	4
1898	9
1899	4
1900	1
1901	4
1902	4
1903	2
1904	7
1905	18
1906	16
1907	22
1908	9
1909	23
1910	91
1911	25
1912	29
1913	29
1914	19
1915	37
1916	24
1917	40
1918	96
1919	48
1920	105
1921	105
1922	62
1923	325
1924	167
1925	339
1926	256
1927	68
1928	341
1929	371
1930	102
1931	477
1932	429
1933	424
1934	393
1935	514
1936	309
1937	411
1938	236
1939	434
1940	287
1941	528
1942	323
1943	472
1944	341
1945	542
1946	431
1947	618
1948	409
1949	370
1950	642
1951	404
1952	645
1953	869
1954	372
1955	465
1956	586
1957	250
1958	384
1959	316
1960	552
1961	909
1962	733
1963	443
1964	507
1965	611
1966	428
1967	786
1968	546
1969	510
1970	644
1971	717
1972	513
1973	530
1974	2,279
1975	432
1976	582
1977	386
1978	940
1979	461
1980	355
1981	582
1982	617
1983	1,040
1984	1,107
1985	915
1986	663
1987	685
1988	1,259
1989	681
1990	787
1991	708
1992	1,132
1993	859
1994	1,001
1995	1,287
1996	907
1997	1,452
1998	1,564
1999	1,479
2000	1,336
2001	833
2002	767
2003	1,094
2004	898
2005	998
2006	1,268
2007	1,077
2008	1,335
2009	914
2010	1,804
2011	1,310
2012	1,209
2013	630
2014	461
2015	893
2016	597
2017	881
2018	758
2019	616
2020	957
2021	544
2022	1,256
2023	1,290
2024	985
2025	635
2026	1,222

Download the Data

Data for records on 2018-09-04: 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	476
20 to 40	40
40 to 60	9
60 to 80	5
80 to 100	0
100 to 120	0
120 to 140	0
140 to 160	1