Weather Records on 2 September 2021

742 weather records were set or tied worldwide on 2 September 2021. Highest significance: Kennebec, US.

Key Facts for 2 September 2021

On 2 September 2021, 742 weather records were set or tied at long-record stations worldwide.
300 were record highs and 124 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 36 monthly and 702 daily.
Kennebec set a monthly record daily precipitation of 89.2 mm (3.5 in) on 2 September 2021.
Across 167 earlier years (1797 to 2026) the same calendar date averaged 435 records.

Record Map

742 stations

742 station records on 2 September 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 2 September 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kennebec	United States	Record daily precipitation	89.2 mm (3.5 in)	81 of 100 (Exceptional)
Hamburg	United States	Record daily precipitation	104.4 mm (4.1 in)	78 of 100 (Major)
Port Jervis	United States	Record daily precipitation	116.8 mm (4.6 in)	77 of 100 (Major)
Sines Deep Creek	United States	Record daily precipitation	86.4 mm (3.4 in)	74 of 100 (Major)
Storrs	United States	Record daily precipitation	140.0 mm (5.5 in)	72 of 100 (Major)
Rochester	United States	Record daily precipitation	162.6 mm (6.4 in)	71 of 100 (Major)
Selinsgrove 2 S	United States	Record daily precipitation	124.5 mm (4.9 in)	70 of 100 (Major)
Norton W	United States	Record daily precipitation	90.7 mm (3.6 in)	69 of 100 (Major)
Southbridge 3 SW	United States	Record daily precipitation	128.0 mm (5.0 in)	69 of 100 (Major)
Mt Carmel	United States	Record daily precipitation	128.8 mm (5.1 in)	68 of 100 (Major)
Hudson 1 SSE	United States	Record daily precipitation	75.9 mm (3.0 in)	68 of 100 (Major)
Carlisle Wtp	United States	Record daily precipitation	107.7 mm (4.2 in)	68 of 100 (Major)
Tamaqua 4 N Dam	United States	Record daily precipitation	122.9 mm (4.8 in)	68 of 100 (Major)
Conowingo Dam	United States	Record daily precipitation	119.4 mm (4.7 in)	66 of 100 (Major)
Belchertown	United States	Record daily precipitation	107.7 mm (4.2 in)	66 of 100 (Major)
Nashua 2 NNW	United States	Record daily precipitation	81.3 mm (3.2 in)	65 of 100 (Major)
Gereta Station	Australia	Record daily precipitation	40.0 mm (1.6 in)	64 of 100 (Major)
Milford	United States	Record daily precipitation	123.2 mm (4.9 in)	64 of 100 (Major)
Wertsville 4 NE	United States	Record daily precipitation	226.1 mm (8.9 in)	64 of 100 (Major)
Haverhill	United States	Record daily precipitation	85.3 mm (3.4 in)	63 of 100 (Major)
Middleton	United States	Record daily precipitation	93.0 mm (3.7 in)	63 of 100 (Major)
Conshohocken	United States	Record daily precipitation	123.4 mm (4.9 in)	63 of 100 (Major)
Canoe Brook	United States	Record daily precipitation	157.2 mm (6.2 in)	61 of 100 (Major)
Kingston	United States	Record daily precipitation	150.4 mm (5.9 in)	61 of 100 (Major)
Buckhannon	United States	Record daily precipitation	67.8 mm (2.7 in)	61 of 100 (Major)
Valentine Miller Fld AP	United States	Record daily precipitation	58.7 mm (2.3 in)	61 of 100 (Major)
Emmitsburg 2 SE	United States	Record daily precipitation	139.4 mm (5.5 in)	60 of 100 (Major)
Hingham	United States	Record daily precipitation	95.0 mm (3.7 in)	59 of 100 (Notable)
Lowell	United States	Record daily precipitation	85.9 mm (3.4 in)	59 of 100 (Notable)
E Wareham	United States	Record daily precipitation	167.4 mm (6.6 in)	57 of 100 (Notable)
Lehighton 1SSW	United States	Record daily precipitation	108.7 mm (4.3 in)	57 of 100 (Notable)
Prompton Dam	United States	Record daily precipitation	89.9 mm (3.5 in)	57 of 100 (Notable)
Ansonia 1 NW	United States	Record daily precipitation	98.8 mm (3.9 in)	56 of 100 (Notable)
Aberdeen Phillips Fld	United States	Record daily precipitation	84.8 mm (3.3 in)	56 of 100 (Notable)
Kamilaroi Station	Australia	Record daily precipitation	25.0 mm (1.0 in)	55 of 100 (Notable)
Flemington 5 NNW	United States	Record daily precipitation	177.0 mm (7.0 in)	55 of 100 (Notable)
Morgantown	United States	Record daily precipitation	79.8 mm (3.1 in)	55 of 100 (Notable)
Colorado Nm	United States	Record daily precipitation	25.9 mm (1.0 in)	54 of 100 (Notable)
Middleboro	United States	Record daily precipitation	114.0 mm (4.5 in)	54 of 100 (Notable)
Sussex 1 NW	United States	Record daily precipitation	115.6 mm (4.6 in)	54 of 100 (Notable)
Beltzville Dam	United States	Record daily precipitation	107.2 mm (4.2 in)	54 of 100 (Notable)
Adelaide West Terrace	Australia	Record high minimum temperature	17.9 C (64.2 F)	53 of 100 (Notable)
Bakersville	United States	Record daily precipitation	146.6 mm (5.8 in)	52 of 100 (Notable)
Lawrence	United States	Record daily precipitation	80.0 mm (3.1 in)	52 of 100 (Notable)
Landisville 2 NW	United States	Record daily precipitation	147.8 mm (5.8 in)	52 of 100 (Notable)
Lewistown	United States	Record daily precipitation	125.0 mm (4.9 in)	52 of 100 (Notable)
Savage Rvr Dam	United States	Record daily precipitation	101.6 mm (4.0 in)	51 of 100 (Notable)
Barre Falls Dam	United States	Record daily precipitation	109.7 mm (4.3 in)	51 of 100 (Notable)
Blue Hill Coop	United States	Record daily precipitation	101.6 mm (4.0 in)	51 of 100 (Notable)
Boonton 1 SE	United States	Record daily precipitation	122.9 mm (4.8 in)	51 of 100 (Notable)
Norfolk 2 SW	United States	Record daily precipitation	110.2 mm (4.3 in)	50 of 100 (Notable)
Williamsport	United States	Record daily precipitation	146.1 mm (5.8 in)	50 of 100 (Notable)
Francis E Walter Dam	United States	Record daily precipitation	136.7 mm (5.4 in)	50 of 100 (Notable)
Murdo	United States	Record daily precipitation	55.6 mm (2.2 in)	50 of 100 (Notable)
Veraval	India	Record daily precipitation	96.0 mm (3.8 in)	49 of 100 (Notable)
Simferopol	Ukraine	Record daily precipitation	32.0 mm (1.3 in)	49 of 100 (Notable)
Artichoke Lake 1 E	United States	Record daily precipitation	42.2 mm (1.7 in)	49 of 100 (Notable)
Belvidere Brg	United States	Record daily precipitation	109.0 mm (4.3 in)	49 of 100 (Notable)
Grafton South (South Grafton	Australia	Record daily precipitation	44.4 mm (1.7 in)	48 of 100 (Notable)
Amherst	United States	Record daily precipitation	89.7 mm (3.5 in)	48 of 100 (Notable)

Counts by Type and Timescale

742 records

Records set or tied on 2 September 2021 by type: Highest daily maximum 125, Lowest daily maximum 91, Highest daily minimum 175, Lowest daily minimum 33, Heaviest daily rainfall 318.

Records on 2 September 2021 by type
Record type	Records
Highest daily maximum	125
Lowest daily maximum	91
Highest daily minimum	175
Lowest daily minimum	33
Heaviest daily rainfall	318
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 2 September 2021 by timescale: all-time 4, monthly 36, daily 702.

How Much Records Were Beaten By

635 broken records

Margins by which the 635 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 201.7. Ties are not counted.

Top 20 by Significance

2 September 2021

Top 20 records on 2 September 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 September 2021	Kennebec, US	monthly rain	89.2 mm (3.5 in)	33.8 mm (1.3 in)	82 years	81 of 100 (Exceptional)
2 September 2021	Hamburg, US	daily rain	104.4 mm (4.1 in)	76.0 mm (3.0 in)	95 years	78 of 100 (Major)
2 September 2021	Port Jervis, US	daily rain	116.8 mm (4.6 in)	82.3 mm (3.2 in)	90 years	77 of 100 (Major)
2 September 2021	Sines Deep Creek, US	daily rain	86.4 mm (3.4 in)	58.0 mm (2.3 in)	86 years	74 of 100 (Major)
2 September 2021	Storrs, US	daily rain	140.0 mm (5.5 in)	71.4 mm (2.8 in)	74 years	72 of 100 (Major)
2 September 2021	Rochester, US	monthly rain	162.6 mm (6.4 in)	53.6 mm (2.1 in)	60 years	71 of 100 (Major)
2 September 2021	Selinsgrove 2 S, US	daily rain	124.5 mm (4.9 in)	80.6 mm (3.2 in)	68 years	70 of 100 (Major)
2 September 2021	Norton W, US	daily rain	90.7 mm (3.6 in)	55.1 mm (2.2 in)	94 years	69 of 100 (Major)
2 September 2021	Southbridge 3 SW, US	daily rain	128.0 mm (5.0 in)	85.3 mm (3.4 in)	68 years	69 of 100 (Major)
2 September 2021	Mt Carmel, US	daily rain	128.8 mm (5.1 in)	87.4 mm (3.4 in)	68 years	68 of 100 (Major)
2 September 2021	Hudson 1 SSE, US	daily rain	75.9 mm (3.0 in)	61.4 mm (2.4 in)	70 years	68 of 100 (Major)
2 September 2021	Carlisle Wtp, US	daily rain	107.7 mm (4.2 in)	54.4 mm (2.1 in)	153 years	68 of 100 (Major)
2 September 2021	Tamaqua 4 N Dam, US	daily rain	122.9 mm (4.8 in)	63.0 mm (2.5 in)	68 years	68 of 100 (Major)
2 September 2021	Conowingo Dam, US	daily rain	119.4 mm (4.7 in)	88.2 mm (3.5 in)	62 years	66 of 100 (Major)
2 September 2021	Belchertown, US	daily rain	107.7 mm (4.2 in)	59.4 mm (2.3 in)	68 years	66 of 100 (Major)
2 September 2021	Nashua 2 NNW, US	daily rain	81.3 mm (3.2 in)	39.1 mm (1.5 in)	121 years	65 of 100 (Major)
2 September 2021	Gereta Station, AU	monthly rain	40.0 mm (1.6 in)	19.9 mm (0.8 in)	84 years	64 of 100 (Major)
2 September 2021	Milford, US	daily rain	123.2 mm (4.9 in)	55.9 mm (2.2 in)	74 years	64 of 100 (Major)
2 September 2021	Wertsville 4 NE, US	daily rain	226.1 mm (8.9 in)	201.7 mm (7.9 in)	62 years	64 of 100 (Major)
2 September 2021	Haverhill, US	daily rain	85.3 mm (3.4 in)	52.0 mm (2.0 in)	70 years	63 of 100 (Major)

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 2021

Records set or tied on this calendar date in each year from 1797 to 2021. 2021 had 742 records.

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

Records on 09-02 in each year
Year	Records
1797	1
1800	1
1802	1
1808	1
1838	1
1841	1
1843	1
1850	1
1854	1
1855	1
1857	1
1860	3
1861	1
1864	1
1867	2
1869	2
1870	1
1871	2
1872	1
1875	1
1876	1
1877	3
1878	2
1879	1
1881	1
1883	1
1884	1
1885	4
1886	5
1888	1
1889	2
1890	5
1891	1
1892	5
1893	3
1894	4
1895	3
1896	4
1897	4
1898	8
1899	10
1900	3
1901	4
1902	5
1903	13
1904	6
1905	14
1906	25
1907	11
1908	58
1909	35
1910	13
1911	82
1912	37
1913	37
1914	16
1915	38
1916	26
1917	20
1918	31
1919	17
1920	39
1921	85
1922	46
1923	75
1924	212
1925	147
1926	215
1927	71
1928	203
1929	322
1930	194
1931	305
1932	473
1933	427
1934	537
1935	602
1936	391
1937	905
1938	376
1939	439
1940	224
1941	467
1942	389
1943	336
1944	353
1945	392
1946	635
1947	1,147
1948	431
1949	563
1950	745
1951	515
1952	698
1953	1,153
1954	721
1955	501
1956	440
1957	385
1958	348
1959	534
1960	448
1961	839
1962	318
1963	272
1964	679
1965	440
1966	362
1967	1,213
1968	493
1969	465
1970	553
1971	521
1972	743
1973	1,148
1974	1,294
1975	519
1976	835
1977	589
1978	484
1979	647
1980	697
1981	521
1982	672
1983	1,076
1984	598
1985	714
1986	860
1987	915
1988	1,284
1989	659
1990	675
1991	807
1992	1,117
1993	1,405
1994	1,291
1995	1,143
1996	604
1997	1,547
1998	1,263
1999	912
2000	1,931
2001	981
2002	805
2003	1,310
2004	679
2005	623
2006	1,238
2007	1,086
2008	1,229
2009	706
2010	1,081
2011	1,265
2012	885
2013	717
2014	650
2015	661
2016	621
2017	1,047
2018	473
2019	789
2020	701
2021	742
2022	991
2023	707
2024	923
2025	431
2026	866

Download the Data

Data for records on 2021-09-02: 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 50	585
50 to 100	46
100 to 150	3
150 to 200	0
200 to 250	1