Weather Records on 21 September 2006

920 weather records were set or tied worldwide on 21 September 2006. Highest significance: Ratnagiri, IN.

Key Facts for 21 September 2006

On 21 September 2006, 920 weather records were set or tied at long-record stations worldwide.
469 were record highs and 286 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 32 monthly and 887 daily.
Ratnagiri set a daily record precipitation of 245.1 mm (9.6 in) on 21 September 2006.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 448 records.

Record Map

920 stations

920 station records on 21 September 2006 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 2006: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ratnagiri	India	Record daily precipitation	245.1 mm (9.6 in)	67 of 100 (Major)
Dividalen	Norway	Record daily precipitation	25.9 mm (1.0 in)	57 of 100 (Notable)
Climax	United States	Record daily snowfall	24.1 cm (9.5 in)	53 of 100 (Notable)
Silverton	United States	Record daily snowfall	5.3 cm (2.1 in)	50 of 100 (Notable)
Las Animas	United States	Record daily precipitation	45.0 mm (1.8 in)	48 of 100 (Notable)
Telluride 4WNW	United States	Record snow depth	10.2 cm (4.0 in)	48 of 100 (Notable)
Milan	Italy	Record high minimum temperature	22.4 C (72.3 F)	46 of 100 (Notable)
Inverness 3 SE	United States	Record low minimum temperature	14.4 C (57.9 F)	46 of 100 (Notable)
Idaho Falls 16 SE	United States	Record daily precipitation	33.8 mm (1.3 in)	44 of 100 (Notable)
Liafoss	Norway	Record daily precipitation	52.8 mm (2.1 in)	43 of 100 (Notable)
Lisboa Geofisica	Portugal	Record daily precipitation	35.4 mm (1.4 in)	43 of 100 (Notable)
Roxboro 7 ESE	United States	Record low minimum temperature	4.4 C (39.9 F)	43 of 100 (Notable)
Shannon	Ireland	Record daily precipitation	38.9 mm (1.5 in)	42 of 100 (Notable)
Pte de la Hague	France	Record high minimum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Tepelmeme de Morelos	Mexico	Record high maximum temperature	31.7 C (89.1 F)	42 of 100 (Notable)
Cave Run Lake	United States	Record low maximum temperature	13.9 C (57.0 F)	42 of 100 (Notable)
Jefferson 2 E	United States	Record low minimum temperature	0.6 C (33.1 F)	42 of 100 (Notable)
Armour	United States	Record daily precipitation	34.5 mm (1.4 in)	42 of 100 (Notable)
Kailua 446	United States	Record low maximum temperature	22.2 C (72.0 F)	42 of 100 (Notable)
Stornoway Airport	United Kingdom	Record high maximum temperature	19.7 C (67.5 F)	41 of 100 (Notable)
Tifton	United States	Record low minimum temperature	7.8 C (46.0 F)	41 of 100 (Notable)
Brenham	United States	Record low minimum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Saltville 1N	United States	Record low maximum temperature	17.2 C (63.0 F)	41 of 100 (Notable)
Calcutta/Dum Dum	India	Record daily precipitation	93.0 mm (3.7 in)	40 of 100 (Notable)
Los Reyes	Mexico	Record high maximum temperature	35.0 C (95.0 F)	39 of 100 (Notable)
Ceahlau Toaca	Romania	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Durham	United Kingdom	Record high minimum temperature	14.0 C (57.2 F)	39 of 100 (Notable)
Cascadia	United States	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Plymouth Wwtp	United States	Record low minimum temperature	1.1 C (34.0 F)	39 of 100 (Notable)
Pamplona (Observatorio)	Spain	Record daily precipitation	67.6 mm (2.7 in)	38 of 100 (Notable)
Cet Central England	United Kingdom	Record high maximum temperature	27.1 C (80.8 F)	38 of 100 (Notable)
Valley	United Kingdom	Record high maximum temperature	25.5 C (77.9 F)	38 of 100 (Notable)
Grizedale	United Kingdom	Record high maximum temperature	26.4 C (79.5 F)	38 of 100 (Notable)
Beaver Dam	United States	Record low maximum temperature	18.3 C (64.9 F)	38 of 100 (Notable)
Tecuantepec (Cfe)	Mexico	Record low maximum temperature	15.6 C (60.1 F)	37 of 100 (Notable)
Henderson 2 NNW	United States	Record low minimum temperature	5.0 C (41.0 F)	37 of 100 (Notable)
Dunbar	United Kingdom	Record high maximum temperature	25.9 C (78.6 F)	36 of 100 (Notable)
Greenville	United States	Record low minimum temperature	8.3 C (46.9 F)	36 of 100 (Notable)
Washington	United States	Record low minimum temperature	0.6 C (33.1 F)	36 of 100 (Notable)
Ashland	United States	Record low maximum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Anacortes	United States	Record low maximum temperature	12.8 C (55.0 F)	36 of 100 (Notable)
Climax	United States	Record snow depth	25.4 cm (10.0 in)	35 of 100 (Notable)
Levan	United States	Record low minimum temperature	-3.3 C (26.1 F)	35 of 100 (Notable)
Purcellville	United States	Record low maximum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Snoqualmie Falls	United States	Record low maximum temperature	12.2 C (54.0 F)	35 of 100 (Notable)
San Marcos	Mexico	Record high maximum temperature	41.7 C (107.1 F)	34 of 100 (Routine)
Threave	United Kingdom	Record high maximum temperature	24.2 C (75.6 F)	34 of 100 (Routine)
Penicuik	United Kingdom	Record high maximum temperature	24.0 C (75.2 F)	34 of 100 (Routine)
Atwood 8SSE	United States	Record daily precipitation	58.4 mm (2.3 in)	34 of 100 (Routine)
Gallipolis	United States	Record low maximum temperature	15.0 C (59.0 F)	34 of 100 (Routine)
Jackson 3 NW	United States	Record low maximum temperature	13.3 C (55.9 F)	34 of 100 (Routine)
Wapato	United States	Record low maximum temperature	17.2 C (63.0 F)	34 of 100 (Routine)
Beckley Va Hospital	United States	Record low maximum temperature	10.0 C (50.0 F)	34 of 100 (Routine)
Ica	Russia	Record high maximum temperature	19.7 C (67.5 F)	33 of 100 (Routine)
Breckenridge	United States	Record snow depth	12.7 cm (5.0 in)	33 of 100 (Routine)
Placerville 3SE	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Red Rvr	United States	Record daily precipitation	29.7 mm (1.2 in)	33 of 100 (Routine)
Centerville 6 SE	United States	Record daily precipitation	38.4 mm (1.5 in)	33 of 100 (Routine)
San Miguel Tlaixpan	Mexico	Record high maximum temperature	35.0 C (95.0 F)	32 of 100 (Routine)
Cuetzalan del Progreso	Mexico	Record high maximum temperature	33.9 C (93.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

920 records

Records set or tied on 21 September 2006 by type: Highest daily maximum 279, Lowest daily maximum 147, Highest daily minimum 190, Lowest daily minimum 139, Heaviest daily rainfall 148, Heaviest daily snowfall 9, Deepest snow cover 8.

Records on 21 September 2006 by type
Record type	Records
Highest daily maximum	279
Lowest daily maximum	147
Highest daily minimum	190
Lowest daily minimum	139
Heaviest daily rainfall	148
Heaviest daily snowfall	9
Deepest snow cover	8

Records on 21 September 2006 by timescale: all-time 1, monthly 32, daily 887.

How Much Records Were Beaten By

695 broken records

Margins by which the 695 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

21 September 2006

Top 20 records on 21 September 2006 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 2006	Ratnagiri, IN	daily rain	245.1 mm (9.6 in)	138.4 mm (5.4 in)	56 years	67 of 100 (Major)
21 September 2006	Dividalen, NO	daily rain	25.9 mm (1.0 in)	8.5 mm (0.33 in)	76 years	57 of 100 (Notable)
21 September 2006	Climax, US	daily snowfall	24.1 cm (9.5 in)	8.9 cm (3.5 in)	110 years	53 of 100 (Notable)
21 September 2006	Silverton, US	daily snowfall	5.3 cm (2.1 in)	5.3 cm (2.1 in)	100 years	50 of 100 (Notable)
21 September 2006	Las Animas, US	daily rain	45.0 mm (1.8 in)	18.6 mm (0.7 in)	53 years	48 of 100 (Notable)
21 September 2006	Telluride 4WNW, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	95 years	48 of 100 (Notable)
21 September 2006	Milan, IT	daily high min	22.4 C (72.3 F)	1.8 C (3.2 F)	200 years	46 of 100 (Notable)
21 September 2006	Inverness 3 SE, US	daily low min	14.4 C (57.9 F)	1.2 C (2.2 F)	103 years	46 of 100 (Notable)
21 September 2006	Idaho Falls 16 SE, US	monthly rain	33.8 mm (1.3 in)	8.4 mm (0.33 in)	43 years	44 of 100 (Notable)
21 September 2006	Liafoss, NO	daily rain	52.8 mm (2.1 in)	14.7 mm (0.6 in)	71 years	43 of 100 (Notable)
21 September 2006	Lisboa Geofisica, PT	daily rain	35.4 mm (1.4 in)	18.5 mm (0.7 in)	56 years	43 of 100 (Notable)
21 September 2006	Roxboro 7 ESE, US	daily low min	4.4 C (39.9 F)	1.7 C (3.1 F)	108 years	43 of 100 (Notable)
21 September 2006	Shannon, IE	daily rain	38.9 mm (1.5 in)	20.9 mm (0.8 in)	16 years	42 of 100 (Notable)
21 September 2006	Pte de la Hague, FR	daily high min	20.0 C (68.0 F)	3.0 C (5.4 F)	60 years	42 of 100 (Notable)
21 September 2006	Tepelmeme de Morelos, MX	daily high max	31.7 C (89.1 F)	6.1 C (11.0 F)	52 years	42 of 100 (Notable)
21 September 2006	Cave Run Lake, US	daily low max	13.9 C (57.0 F)	2.8 C (5.0 F)	88 years	42 of 100 (Notable)
21 September 2006	Jefferson 2 E, US	daily low min	0.6 C (33.1 F)	1.1 C (2.0 F)	103 years	42 of 100 (Notable)
21 September 2006	Armour, US	daily rain	34.5 mm (1.4 in)	10.6 mm (0.4 in)	81 years	42 of 100 (Notable)
21 September 2006	Kailua 446, US	daily low max	22.2 C (72.0 F)	0.6 C (1.1 F)	96 years	42 of 100 (Notable)
21 September 2006	Stornoway Airport, GB	daily high max	19.7 C (67.5 F)	0.3 C (0.5 F)	103 years	41 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

1805 to 2006

Records set or tied on this calendar date in each year from 1805 to 2006. 2006 had 920 records.

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

Records on 09-21 in each year
Year	Records
1805	1
1812	1
1825	2
1840	1
1841	1
1842	1
1848	1
1854	1
1856	2
1868	1
1872	2
1873	1
1877	1
1878	1
1881	1
1882	1
1884	1
1886	1
1888	2
1889	1
1891	10
1892	1
1893	10
1894	2
1895	3
1896	2
1897	6
1898	6
1899	3
1900	2
1901	5
1902	5
1903	8
1904	20
1905	12
1906	17
1907	10
1908	17
1909	10
1910	8
1911	18
1912	26
1913	37
1914	29
1915	34
1916	48
1917	28
1918	43
1919	54
1920	29
1921	64
1922	35
1923	232
1924	291
1925	278
1926	178
1927	165
1928	81
1929	232
1930	82
1931	681
1932	242
1933	193
1934	492
1935	199
1936	329
1937	487
1938	508
1939	308
1940	908
1941	416
1942	291
1943	407
1944	413
1945	507
1946	176
1947	534
1948	301
1949	298
1950	334
1951	241
1952	430
1953	382
1954	453
1955	752
1956	1,100
1957	366
1958	588
1959	513
1960	418
1961	441
1962	1,085
1963	306
1964	374
1965	1,088
1966	565
1967	577
1968	790
1969	593
1970	708
1971	645
1972	599
1973	421
1974	652
1975	528
1976	694
1977	918
1978	818
1979	736
1980	990
1981	696
1982	1,484
1983	2,207
1984	707
1985	796
1986	671
1987	965
1988	557
1989	1,002
1990	716
1991	1,021
1992	752
1993	911
1994	713
1995	2,002
1996	1,233
1997	1,112
1998	1,481
1999	1,025
2000	884
2001	718
2002	696
2003	959
2004	888
2005	1,143
2006	920
2007	742
2008	740
2009	715
2010	1,290
2011	542
2012	595
2013	769
2014	716
2015	565
2016	989
2017	1,178
2018	1,051
2019	833
2020	580
2021	465
2022	1,049
2023	783
2024	470
2025	588
2026	469

Download the Data

Data for records on 2006-09-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 25	679
25 to 50	7
50 to 75	4
75 to 100	2
100 to 125	1
125 to 150	1
150 to 175	0
175 to 200	1