Weather Records on 1 September 2009

1,003 weather records were set or tied worldwide on 1 September 2009. Highest significance: Santa Rita, MX.

Key Facts for 1 September 2009

On 1 September 2009, 1,003 weather records were set or tied at long-record stations worldwide.
469 were record highs and 429 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 93 monthly and 906 daily.
Santa Rita set an all-time record daily precipitation of 334.8 mm (13.2 in) on 1 September 2009.
Across 161 earlier years (1797 to 2026) the same calendar date averaged 438 records.

Record Map

1,003 stations

1,003 station records on 1 September 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 September 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Santa Rita	Mexico	Record daily precipitation	334.8 mm (13.2 in)	70 of 100 (Major)
Boverdal	Norway	Record daily precipitation	27.0 mm (1.1 in)	54 of 100 (Notable)
Ovre Ardal	Norway	Record daily precipitation	31.5 mm (1.2 in)	54 of 100 (Notable)
Jinnah Intl	Pakistan	Record daily precipitation	68.8 mm (2.7 in)	54 of 100 (Notable)
Puerto San Carlos	Mexico	Record daily precipitation	78.0 mm (3.1 in)	51 of 100 (Notable)
Santa Fe	Mexico	Record high minimum temperature	26.7 C (80.1 F)	47 of 100 (Notable)
Huatamote	Mexico	Record daily precipitation	198.4 mm (7.8 in)	46 of 100 (Notable)
Geisenheim	Germany	Record high maximum temperature	31.3 C (88.3 F)	44 of 100 (Notable)
Mjolkbacken	Sweden	Record daily precipitation	36.0 mm (1.4 in)	44 of 100 (Notable)
Superior	United States	Record low minimum temperature	6.7 C (44.1 F)	44 of 100 (Notable)
Scipio	United States	Record high minimum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Kurgan	Russia	Record low minimum temperature	-0.4 C (31.3 F)	43 of 100 (Notable)
Ballastviken	Sweden	Record daily precipitation	38.0 mm (1.5 in)	43 of 100 (Notable)
Hardy	United States	Record low maximum temperature	22.8 C (73.0 F)	43 of 100 (Notable)
Yates Ctr	United States	Record low maximum temperature	18.9 C (66.0 F)	43 of 100 (Notable)
Regensburg	Germany	Record high maximum temperature	30.6 C (87.1 F)	41 of 100 (Notable)
Lichtentanne	Germany	Record high maximum temperature	30.5 C (86.9 F)	41 of 100 (Notable)
Elsinore	United States	Record high minimum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
San Miguel Chimalapa	Mexico	Record low minimum temperature	3.9 C (39.0 F)	40 of 100 (Notable)
Tiksi	Russia	Record daily precipitation	26.6 mm (1.0 in)	40 of 100 (Notable)
Ransaren_D	Sweden	Record daily precipitation	37.0 mm (1.5 in)	40 of 100 (Notable)
Rison	United States	Record low maximum temperature	25.0 C (77.0 F)	40 of 100 (Notable)
Kinston 7 SE	United States	Record low maximum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Winamac 2SSE	United States	Record low minimum temperature	5.6 C (42.1 F)	39 of 100 (Notable)
N'Guigni	Niger	Record low maximum temperature	26.8 C (80.2 F)	38 of 100 (Notable)
Cassville 1 NE	United States	Record low maximum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Hohenpeissenberg	Germany	Record high maximum temperature	27.3 C (81.1 F)	37 of 100 (Notable)
Teterow	Germany	Record high maximum temperature	32.0 C (89.6 F)	37 of 100 (Notable)
Ocate 2 NW	United States	Record daily precipitation	40.4 mm (1.6 in)	37 of 100 (Notable)
Boltenhagen	Germany	Record high maximum temperature	31.0 C (87.8 F)	36 of 100 (Notable)
Tajga	Russia	Record daily precipitation	34.1 mm (1.3 in)	36 of 100 (Notable)
Marshall	United States	Record low maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record high maximum temperature	31.7 C (89.1 F)	35 of 100 (Notable)
Stotten	Germany	Record high maximum temperature	29.1 C (84.4 F)	35 of 100 (Notable)
Cottbus	Germany	Record high maximum temperature	31.3 C (88.3 F)	35 of 100 (Notable)
Uelzen	Germany	Record high maximum temperature	32.0 C (89.6 F)	35 of 100 (Notable)
Berge	Germany	Record high maximum temperature	33.1 C (91.6 F)	35 of 100 (Notable)
Kyritz	Germany	Record high maximum temperature	32.6 C (90.7 F)	35 of 100 (Notable)
Atzalan	Mexico	Record low minimum temperature	7.8 C (46.0 F)	35 of 100 (Notable)
Kota Kinabalu Intl	Malaysia	Record daily precipitation	117.6 mm (4.6 in)	35 of 100 (Notable)
Pogranichnyj	Russia	Record low minimum temperature	5.9 C (42.6 F)	35 of 100 (Notable)
Malung	Sweden	Record high minimum temperature	13.2 C (55.8 F)	35 of 100 (Notable)
Clermont 9 S	United States	Record high maximum temperature	36.7 C (98.1 F)	35 of 100 (Notable)
Mercedes 6 SSE	United States	Record low maximum temperature	28.9 C (84.0 F)	35 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high minimum temperature	24.6 C (76.3 F)	34 of 100 (Routine)
Innsbruck	Austria	Record high maximum temperature	30.5 C (86.9 F)	34 of 100 (Routine)
Bamberg	Germany	Record high maximum temperature	32.2 C (90.0 F)	34 of 100 (Routine)
Nurnberg	Germany	Record high maximum temperature	32.3 C (90.1 F)	34 of 100 (Routine)
Gardelegen	Germany	Record high maximum temperature	33.3 C (91.9 F)	34 of 100 (Routine)
Goldberg	Germany	Record high maximum temperature	31.4 C (88.5 F)	34 of 100 (Routine)
Luchow	Germany	Record high maximum temperature	32.3 C (90.1 F)	34 of 100 (Routine)
La Poza Honda	Mexico	Record daily precipitation	127.0 mm (5.0 in)	34 of 100 (Routine)
Vicente Guerrero	Mexico	Record low maximum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Verhojansk	Russia	Record high maximum temperature	24.4 C (75.9 F)	34 of 100 (Routine)
White Hall 1 E	United States	Record low maximum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
Appleton City	United States	Record low maximum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Merklingen	Germany	Record high maximum temperature	29.5 C (85.1 F)	33 of 100 (Routine)
Stuttgart (Neckartal)	Germany	Record high maximum temperature	33.7 C (92.7 F)	33 of 100 (Routine)
Gollhofen	Germany	Record high maximum temperature	32.3 C (90.1 F)	33 of 100 (Routine)
La Piedad de Cabadas (Dge)	Mexico	Record daily precipitation	46.0 mm (1.8 in)	33 of 100 (Routine)

Counts by Type and Timescale

1,003 records

Records set or tied on 1 September 2009 by type: Highest daily maximum 291, Lowest daily maximum 224, Highest daily minimum 178, Lowest daily minimum 205, Heaviest daily rainfall 105.

Records on 1 September 2009 by type
Record type	Records
Highest daily maximum	291
Lowest daily maximum	224
Highest daily minimum	178
Lowest daily minimum	205
Heaviest daily rainfall	105
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 September 2009 by timescale: all-time 4, monthly 93, daily 906.

How Much Records Were Beaten By

717 broken records

Margins by which the 717 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 238.0. Ties are not counted.

Top 20 by Significance

1 September 2009

Top 20 records on 1 September 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 September 2009	Santa Rita, MX	all-time rain	334.8 mm (13.2 in)	238.0 mm (9.4 in)	25 years	70 of 100 (Major)
1 September 2009	Boverdal, NO	daily rain	27.0 mm (1.1 in)	8.6 mm (0.34 in)	75 years	54 of 100 (Notable)
1 September 2009	Ovre Ardal, NO	daily rain	31.5 mm (1.2 in)	22.5 mm (0.9 in)	36 years	54 of 100 (Notable)
1 September 2009	Jinnah Intl, PK	monthly rain	68.8 mm (2.7 in)	37.8 mm (1.5 in)	3 years	54 of 100 (Notable)
1 September 2009	Puerto San Carlos, MX	daily rain	78.0 mm (3.1 in)	77.0 mm (3.0 in)	24 years	51 of 100 (Notable)
1 September 2009	Santa Fe, MX	monthly high min	26.7 C (80.1 F)	2.8 C (5.0 F)	43 years	47 of 100 (Notable)
1 September 2009	Huatamote, MX	daily rain	198.4 mm (7.8 in)	178.6 mm (7.0 in)	20 years	46 of 100 (Notable)
1 September 2009	Geisenheim, DE	daily high max	31.3 C (88.3 F)	1.7 C (3.1 F)	119 years	44 of 100 (Notable)
1 September 2009	Mjolkbacken, SE	daily rain	36.0 mm (1.4 in)	24.4 mm (1.0 in)	4 years	44 of 100 (Notable)
1 September 2009	Superior, US	daily low min	6.7 C (44.1 F)	2.2 C (4.0 F)	104 years	44 of 100 (Notable)
1 September 2009	Scipio, US	daily high min	19.4 C (66.9 F)	2.2 C (4.0 F)	109 years	44 of 100 (Notable)
1 September 2009	Kurgan, RU	daily low min	-0.4 C (31.3 F)	2.2 C (4.0 F)	96 years	43 of 100 (Notable)
1 September 2009	Ballastviken, SE	monthly rain	38.0 mm (1.5 in)	9.5 mm (0.37 in)	20 years	43 of 100 (Notable)
1 September 2009	Hardy, US	daily low max	22.8 C (73.0 F)	2.8 C (5.0 F)	92 years	43 of 100 (Notable)
1 September 2009	Yates Ctr, US	daily low max	18.9 C (66.0 F)	1.7 C (3.1 F)	113 years	43 of 100 (Notable)
1 September 2009	Regensburg, DE	daily high max	30.6 C (87.1 F)	0.8 C (1.4 F)	122 years	41 of 100 (Notable)
1 September 2009	Lichtentanne, DE	daily high max	30.5 C (86.9 F)	0.7 C (1.3 F)	141 years	41 of 100 (Notable)
1 September 2009	Elsinore, US	daily high min	22.8 C (73.0 F)	0.6 C (1.1 F)	104 years	41 of 100 (Notable)
1 September 2009	San Miguel Chimalapa, MX	all-time low min	3.9 C (39.0 F)	3.9 C (7.0 F)	18 years	40 of 100 (Notable)
1 September 2009	Tiksi, RU	monthly rain	26.6 mm (1.0 in)	1.1 mm (0.04 in)	67 years	40 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

1797 to 2009

Records set or tied on this calendar date in each year from 1797 to 2009. 2009 had 1,003 records.

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

Records on 09-01 in each year
Year	Records
1797	1
1806	1
1819	1
1827	1
1831	1
1838	1
1851	1
1853	1
1854	1
1857	1
1858	1
1859	1
1860	2
1861	1
1865	1
1866	1
1867	2
1869	3
1871	1
1873	1
1876	2
1877	2
1878	3
1879	2
1881	5
1883	1
1886	3
1887	3
1888	2
1890	2
1892	2
1894	3
1897	4
1898	10
1899	3
1900	2
1901	14
1902	5
1903	16
1904	9
1905	6
1906	26
1907	14
1908	26
1909	34
1910	22
1911	16
1912	47
1913	32
1914	23
1915	46
1916	16
1917	24
1918	31
1919	19
1920	31
1921	46
1922	67
1923	75
1924	210
1925	127
1926	182
1927	136
1928	166
1929	324
1930	264
1931	233
1932	550
1933	622
1934	654
1935	584
1936	385
1937	502
1938	373
1939	303
1940	333
1941	497
1942	532
1943	578
1944	377
1945	497
1946	642
1947	555
1948	460
1949	1,102
1950	849
1951	668
1952	644
1953	937
1954	407
1955	413
1956	504
1957	320
1958	427
1959	519
1960	408
1961	531
1962	368
1963	416
1964	621
1965	657
1966	596
1967	1,263
1968	604
1969	493
1970	502
1971	464
1972	518
1973	874
1974	895
1975	939
1976	627
1977	500
1978	809
1979	459
1980	671
1981	649
1982	642
1983	1,167
1984	619
1985	901
1986	964
1987	909
1988	651
1989	823
1990	749
1991	687
1992	1,010
1993	1,122
1994	1,291
1995	1,165
1996	823
1997	1,161
1998	1,159
1999	925
2000	1,613
2001	904
2002	778
2003	1,254
2004	827
2005	901
2006	1,157
2007	976
2008	1,204
2009	1,003
2010	1,313
2011	1,071
2012	874
2013	775
2014	515
2015	661
2016	522
2017	686
2018	399
2019	800
2020	689
2021	751
2022	1,016
2023	720
2024	938
2025	359
2026	521

Download the Data

Data for records on 2009-09-01: 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	711
50 to 100	4
100 to 150	0
150 to 200	1
200 to 250	1