Weather Records on 21 September 1997

1,112 weather records were set or tied worldwide on 21 September 1997. Highest significance: Pagosa Springs 1SE, US.

Key Facts for 21 September 1997

On 21 September 1997, 1,112 weather records were set or tied at long-record stations worldwide.
347 were record highs and 354 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 39 monthly and 1,071 daily.
Pagosa Springs 1SE set a daily record precipitation of 59.9 mm (2.4 in) on 21 September 1997.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 447 records.

Record Map

1,112 stations

1,112 station records on 21 September 1997 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 1997: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pagosa Springs 1SE	United States	Record daily precipitation	59.9 mm (2.4 in)	69 of 100 (Major)
Hermit 8 SE	United States	Record daily precipitation	44.5 mm (1.8 in)	67 of 100 (Major)
Lifton Pumping STN	United States	Record daily precipitation	29.0 mm (1.1 in)	63 of 100 (Major)
Ft Lewis	United States	Record daily precipitation	58.4 mm (2.3 in)	60 of 100 (Major)
Dulce	United States	Record daily precipitation	38.4 mm (1.5 in)	60 of 100 (Major)
Gila Hot Springs	United States	Record daily precipitation	88.4 mm (3.5 in)	59 of 100 (Notable)
Alvin	United States	Record daily precipitation	116.8 mm (4.6 in)	59 of 100 (Notable)
Green Mt Dam	United States	Record daily precipitation	34.5 mm (1.4 in)	55 of 100 (Notable)
Bloomfield 3 SE	United States	Record daily precipitation	40.6 mm (1.6 in)	55 of 100 (Notable)
Bosque del Apache	United States	Record daily precipitation	36.1 mm (1.4 in)	55 of 100 (Notable)
Crossroads 2	United States	Record daily precipitation	68.8 mm (2.7 in)	54 of 100 (Notable)
Poretskoye	Russia	Record daily precipitation	31.2 mm (1.2 in)	53 of 100 (Notable)
Palestina	Brazil	Record daily precipitation	60.0 mm (2.4 in)	52 of 100 (Notable)
Great Sand Dunes Np & Preserve	United States	Record daily precipitation	33.0 mm (1.3 in)	52 of 100 (Notable)
Beaverhead R/S	United States	Record daily precipitation	96.0 mm (3.8 in)	52 of 100 (Notable)
Duncan	United States	Record daily precipitation	45.2 mm (1.8 in)	51 of 100 (Notable)
Cliff 11 SE	United States	Record daily precipitation	79.0 mm (3.1 in)	51 of 100 (Notable)
Rienhardt Rch	United States	Record daily precipitation	45.7 mm (1.8 in)	51 of 100 (Notable)
Socorro	United States	Record daily precipitation	52.8 mm (2.1 in)	51 of 100 (Notable)
Villanueva	United States	Record daily precipitation	46.2 mm (1.8 in)	51 of 100 (Notable)
Ersov	Russia	Record daily precipitation	33.2 mm (1.3 in)	50 of 100 (Notable)
Altenbern	United States	Record daily precipitation	31.5 mm (1.2 in)	50 of 100 (Notable)
Hamilton	United States	Record daily precipitation	32.0 mm (1.3 in)	50 of 100 (Notable)
Shoshone	United States	Record daily precipitation	31.5 mm (1.2 in)	50 of 100 (Notable)
Kelly Rch	United States	Record daily precipitation	67.8 mm (2.7 in)	49 of 100 (Notable)
Mirassolandia	Brazil	Record daily precipitation	48.7 mm (1.9 in)	48 of 100 (Notable)
Gateway 1ENE	United States	Record daily precipitation	33.0 mm (1.3 in)	47 of 100 (Notable)
Elephant Butte Dam	United States	Record daily precipitation	42.4 mm (1.7 in)	47 of 100 (Notable)
Luna Rs	United States	Record daily precipitation	35.1 mm (1.4 in)	46 of 100 (Notable)
Ibiporanga	Brazil	Record daily precipitation	47.3 mm (1.9 in)	45 of 100 (Notable)
Bingham 2 NE	United States	Record daily precipitation	43.7 mm (1.7 in)	45 of 100 (Notable)
Beaufort Wwtp	United States	Record high maximum temperature	35.0 C (95.0 F)	45 of 100 (Notable)
Kodiak AP	United States	Record daily precipitation	71.6 mm (2.8 in)	45 of 100 (Notable)
Pontal	Brazil	Record daily precipitation	80.2 mm (3.2 in)	44 of 100 (Notable)
Capitan Carlos Martinez de Pi	Peru	Record high minimum temperature	20.2 C (68.4 F)	44 of 100 (Notable)
Torreon Navajo Mission	United States	Record daily precipitation	27.2 mm (1.1 in)	44 of 100 (Notable)
Mountainair	United States	Record daily precipitation	44.7 mm (1.8 in)	43 of 100 (Notable)
Dalveen	Australia	Record daily precipitation	36.0 mm (1.4 in)	42 of 100 (Notable)
Blanca 4 NW	United States	Record daily precipitation	37.3 mm (1.5 in)	42 of 100 (Notable)
Faywood	United States	Record daily precipitation	26.9 mm (1.1 in)	42 of 100 (Notable)
Bria	Central African Republic	Record high maximum temperature	38.5 C (101.3 F)	41 of 100 (Notable)
Nicosia	Cyprus	Record low maximum temperature	27.6 C (81.7 F)	41 of 100 (Notable)
Glorieta	United States	Record daily precipitation	58.4 mm (2.3 in)	41 of 100 (Notable)
Warrabah	Australia	Record daily precipitation	51.4 mm (2.0 in)	40 of 100 (Notable)
Estancia 4N	United States	Record daily precipitation	27.7 mm (1.1 in)	40 of 100 (Notable)
Stanley 2 NNE	United States	Record daily precipitation	45.0 mm (1.8 in)	40 of 100 (Notable)
Mt Washington	United States	Record daily snowfall	9.7 cm (3.8 in)	40 of 100 (Notable)
Jaguariuna	Brazil	Record daily precipitation	34.2 mm (1.3 in)	39 of 100 (Notable)
Kluhorskij Pereval	Georgia	Record daily precipitation	69.1 mm (2.7 in)	39 of 100 (Notable)
Bremen-Seefahrtschule	Germany	Record low minimum temperature	-0.2 C (31.6 F)	39 of 100 (Notable)
Lamar	United States	Record daily precipitation	39.9 mm (1.6 in)	39 of 100 (Notable)
Clausthal-Zellerfeld	Germany	Record low minimum temperature	-0.4 C (31.3 F)	38 of 100 (Notable)
Caduao	Mexico	Record daily precipitation	141.0 mm (5.6 in)	38 of 100 (Notable)
Vallecito Dam	United States	Record daily precipitation	32.3 mm (1.3 in)	38 of 100 (Notable)
Campina Verde	Brazil	Record daily precipitation	56.3 mm (2.2 in)	37 of 100 (Notable)
Congonhas-Montante	Brazil	Record daily precipitation	52.1 mm (2.1 in)	37 of 100 (Notable)
Hattiesburg 5SW	United States	Record high maximum temperature	38.9 C (102.0 F)	37 of 100 (Notable)
Glenwood	United States	Record daily precipitation	32.3 mm (1.3 in)	37 of 100 (Notable)
Yerevan	Armenia	Record high minimum temperature	16.9 C (62.4 F)	36 of 100 (Notable)
Riolandia	Brazil	Record daily precipitation	42.9 mm (1.7 in)	36 of 100 (Notable)

Counts by Type and Timescale

1,112 records

Records set or tied on 21 September 1997 by type: Highest daily maximum 198, Lowest daily maximum 125, Highest daily minimum 149, Lowest daily minimum 229, Heaviest daily rainfall 408, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 21 September 1997 by type
Record type	Records
Highest daily maximum	198
Lowest daily maximum	125
Highest daily minimum	149
Lowest daily minimum	229
Heaviest daily rainfall	408
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 21 September 1997 by timescale: all-time 2, monthly 39, daily 1,071.

How Much Records Were Beaten By

911 broken records

Margins by which the 911 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.6. Ties are not counted.

Top 20 by Significance

21 September 1997

Top 20 records on 21 September 1997 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1997	Pagosa Springs 1SE, US	daily rain	59.9 mm (2.4 in)	37.5 mm (1.5 in)	68 years	69 of 100 (Major)
21 September 1997	Hermit 8 SE, US	daily rain	44.5 mm (1.8 in)	29.3 mm (1.2 in)	68 years	67 of 100 (Major)
21 September 1997	Lifton Pumping STN, US	daily rain	29.0 mm (1.1 in)	19.1 mm (0.8 in)	72 years	63 of 100 (Major)
21 September 1997	Ft Lewis, US	monthly rain	58.4 mm (2.3 in)	14.2 mm (0.6 in)	81 years	60 of 100 (Major)
21 September 1997	Dulce, US	daily rain	38.4 mm (1.5 in)	21.9 mm (0.9 in)	60 years	60 of 100 (Major)
21 September 1997	Gila Hot Springs, US	all-time rain	88.4 mm (3.5 in)	27.7 mm (1.1 in)	2 years	59 of 100 (Notable)
21 September 1997	Alvin, US	daily rain	116.8 mm (4.6 in)	69.8 mm (2.7 in)	68 years	59 of 100 (Notable)
21 September 1997	Green Mt Dam, US	daily rain	34.5 mm (1.4 in)	20.8 mm (0.8 in)	36 years	55 of 100 (Notable)
21 September 1997	Bloomfield 3 SE, US	daily rain	40.6 mm (1.6 in)	22.8 mm (0.9 in)	44 years	55 of 100 (Notable)
21 September 1997	Bosque del Apache, US	daily rain	36.1 mm (1.4 in)	23.9 mm (0.9 in)	56 years	55 of 100 (Notable)
21 September 1997	Crossroads 2, US	daily rain	68.8 mm (2.7 in)	42.4 mm (1.7 in)	56 years	54 of 100 (Notable)
21 September 1997	Poretskoye, RU	daily rain	31.2 mm (1.2 in)	14.4 mm (0.6 in)	51 years	53 of 100 (Notable)
21 September 1997	Palestina, BR	daily rain	60.0 mm (2.4 in)	44.6 mm (1.8 in)	28 years	52 of 100 (Notable)
21 September 1997	Great Sand Dunes Np & Preserve, US	daily rain	33.0 mm (1.3 in)	20.3 mm (0.8 in)	44 years	52 of 100 (Notable)
21 September 1997	Beaverhead R/S, US	daily rain	96.0 mm (3.8 in)	71.9 mm (2.8 in)	15 years	52 of 100 (Notable)
21 September 1997	Duncan, US	daily rain	45.2 mm (1.8 in)	34.3 mm (1.4 in)	8 years	51 of 100 (Notable)
21 September 1997	Cliff 11 SE, US	all-time rain	79.0 mm (3.1 in)	15.5 mm (0.6 in)	22 years	51 of 100 (Notable)
21 September 1997	Rienhardt Rch, US	daily rain	45.7 mm (1.8 in)	32.5 mm (1.3 in)	34 years	51 of 100 (Notable)
21 September 1997	Socorro, US	daily rain	52.8 mm (2.1 in)	23.1 mm (0.9 in)	56 years	51 of 100 (Notable)
21 September 1997	Villanueva, US	daily rain	46.2 mm (1.8 in)	36.5 mm (1.4 in)	34 years	51 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 1997

Records set or tied on this calendar date in each year from 1805 to 1997. 1997 had 1,112 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 1997-09-21: 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 2026-10-13 (13 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 20	853
20 to 40	47
40 to 60	6
60 to 80	3
80 to 100	1
100 to 120	1