Weather Records on 25 September 2017

1,253 weather records were set or tied worldwide on 25 September 2017. Highest significance: White Gums, AU.

Key Facts for 25 September 2017

On 25 September 2017, 1,253 weather records were set or tied at long-record stations worldwide.
811 were record highs and 187 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 25 monthly and 1,228 daily.
White Gums set a daily record precipitation of 56.0 mm (2.2 in) on 25 September 2017.
Across 163 earlier years (1825 to 2026) the same calendar date averaged 421 records.

Record Map

1,253 stations

1,253 station records on 25 September 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 September 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
White Gums	Australia	Record daily precipitation	56.0 mm (2.2 in)	76 of 100 (Major)
Amelup	Australia	Record daily precipitation	36.8 mm (1.4 in)	76 of 100 (Major)
Illalangi	Australia	Record daily precipitation	51.0 mm (2.0 in)	71 of 100 (Major)
Kojonup	Australia	Record daily precipitation	28.2 mm (1.1 in)	65 of 100 (Major)
Chillinup	Australia	Record daily precipitation	35.0 mm (1.4 in)	62 of 100 (Major)
Kolhapur	India	Record daily precipitation	65.0 mm (2.6 in)	61 of 100 (Major)
Syracuse 1NE	United States	Record daily precipitation	59.7 mm (2.4 in)	60 of 100 (Major)
Wayjo Park	Australia	Record daily precipitation	35.0 mm (1.4 in)	59 of 100 (Notable)
Tamar	Australia	Record daily precipitation	55.0 mm (2.2 in)	58 of 100 (Notable)
Little Chorkerup	Australia	Record daily precipitation	39.0 mm (1.5 in)	58 of 100 (Notable)
Cedar Bluff Dam	United States	Record daily precipitation	91.9 mm (3.6 in)	58 of 100 (Notable)
Garden City Rgnl AP	United States	Record daily precipitation	49.8 mm (2.0 in)	58 of 100 (Notable)
Peppermint Grove	Australia	Record daily precipitation	46.0 mm (1.8 in)	57 of 100 (Notable)
Campo 7 S	United States	Record daily precipitation	96.5 mm (3.8 in)	57 of 100 (Notable)
Windrush	Australia	Record daily precipitation	57.0 mm (2.2 in)	56 of 100 (Notable)
Neligh	United States	Record daily precipitation	44.5 mm (1.8 in)	54 of 100 (Notable)
Warriup	Australia	Record daily precipitation	51.1 mm (2.0 in)	53 of 100 (Notable)
San Simon	United States	Record low minimum temperature	2.2 C (36.0 F)	53 of 100 (Notable)
Karralea	Australia	Record daily precipitation	64.2 mm (2.5 in)	52 of 100 (Notable)
Lenora Coop	United States	Record daily precipitation	67.3 mm (2.6 in)	52 of 100 (Notable)
Marquette	United States	Record high minimum temperature	19.4 C (66.9 F)	50 of 100 (Notable)
Redmond	Australia	Record daily precipitation	39.0 mm (1.5 in)	48 of 100 (Notable)
Albany Airport	Australia	Record daily precipitation	48.3 mm (1.9 in)	48 of 100 (Notable)
Denbarker	Australia	Record daily precipitation	35.8 mm (1.4 in)	48 of 100 (Notable)
Cresco 1 NE	United States	Record high maximum temperature	32.8 C (91.0 F)	48 of 100 (Notable)
Beaver City	United States	Record daily precipitation	34.5 mm (1.4 in)	48 of 100 (Notable)
Key West NAS	United States	Record high maximum temperature	37.2 C (99.0 F)	48 of 100 (Notable)
Vacoas (Mauritius)	Mauritius	Record daily precipitation	35.1 mm (1.4 in)	47 of 100 (Notable)
Booker	United States	Record daily precipitation	67.1 mm (2.6 in)	47 of 100 (Notable)
Bangalup	Australia	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Mettler	Australia	Record daily precipitation	70.0 mm (2.8 in)	46 of 100 (Notable)
Badgebup	Australia	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Chamingup	Australia	Record daily precipitation	26.0 mm (1.0 in)	46 of 100 (Notable)
Oberlin	United States	Record daily precipitation	31.8 mm (1.3 in)	46 of 100 (Notable)
Montague 4 NW	United States	Record high maximum temperature	31.1 C (88.0 F)	46 of 100 (Notable)
Warra Jarra	Australia	Record daily precipitation	35.0 mm (1.4 in)	45 of 100 (Notable)
Mount Barker North	Australia	Record daily precipitation	36.0 mm (1.4 in)	45 of 100 (Notable)
Nalyerlup	Australia	Record daily precipitation	29.5 mm (1.2 in)	45 of 100 (Notable)
Postville	United States	Record high maximum temperature	31.7 C (89.1 F)	45 of 100 (Notable)
Big Rapids Wtp	United States	Record high maximum temperature	33.3 C (91.9 F)	45 of 100 (Notable)
Detour Village	United States	Record high minimum temperature	18.3 C (64.9 F)	45 of 100 (Notable)
Gothenburg	United States	Record daily precipitation	41.9 mm (1.6 in)	45 of 100 (Notable)
Ogdensburg 4 NE	United States	Record high maximum temperature	32.8 C (91.0 F)	45 of 100 (Notable)
Mauston 1 SE	United States	Record high maximum temperature	32.2 C (90.0 F)	45 of 100 (Notable)
Lamoni	United States	Record high maximum temperature	32.8 C (91.0 F)	44 of 100 (Notable)
Osage	United States	Record high maximum temperature	32.2 C (90.0 F)	44 of 100 (Notable)
Haddam	United States	Record daily precipitation	49.0 mm (1.9 in)	44 of 100 (Notable)
Central Michigan UNIV	United States	Record high maximum temperature	35.0 C (95.0 F)	44 of 100 (Notable)
Nashua 2 NNW	United States	Record high maximum temperature	33.3 C (91.9 F)	44 of 100 (Notable)
Hancock Exp Farm	United States	Record high maximum temperature	31.7 C (89.1 F)	44 of 100 (Notable)
Mather 3 NW	United States	Record high maximum temperature	31.7 C (89.1 F)	44 of 100 (Notable)
Traverse Cy Cherry Capital AP	United States	Record high maximum temperature	33.9 C (93.0 F)	44 of 100 (Notable)
Wereroa	Australia	Record daily precipitation	44.0 mm (1.7 in)	43 of 100 (Notable)
Natural Brg	United States	Record low minimum temperature	-0.6 C (30.9 F)	43 of 100 (Notable)
Pearce - Sunsites	United States	Record low minimum temperature	5.6 C (42.1 F)	43 of 100 (Notable)
John Martin Dam	United States	Record daily precipitation	34.3 mm (1.4 in)	43 of 100 (Notable)
Allerton	United States	Record high maximum temperature	32.2 C (90.0 F)	43 of 100 (Notable)
Jewell	United States	Record daily precipitation	36.1 mm (1.4 in)	43 of 100 (Notable)
Norton 9SSE	United States	Record daily precipitation	61.0 mm (2.4 in)	43 of 100 (Notable)
Presque Isle	United States	Record high maximum temperature	31.1 C (88.0 F)	43 of 100 (Notable)

Counts by Type and Timescale

1,253 records

Records set or tied on 25 September 2017 by type: Highest daily maximum 574, Lowest daily maximum 91, Highest daily minimum 237, Lowest daily minimum 96, Heaviest daily rainfall 249, Heaviest daily snowfall 4, Deepest snow cover 2.

Records on 25 September 2017 by type
Record type	Records
Highest daily maximum	574
Lowest daily maximum	91
Highest daily minimum	237
Lowest daily minimum	96
Heaviest daily rainfall	249
Heaviest daily snowfall	4
Deepest snow cover	2

Records on 25 September 2017 by timescale: all-time 0, monthly 25, daily 1,228.

How Much Records Were Beaten By

1,040 broken records

Margins by which the 1,040 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 140.0. Ties are not counted.

Top 20 by Significance

25 September 2017

Top 20 records on 25 September 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 September 2017	White Gums, AU	daily rain	56.0 mm (2.2 in)	27.8 mm (1.1 in)	91 years	76 of 100 (Major)
25 September 2017	Amelup, AU	daily rain	36.8 mm (1.4 in)	21.6 mm (0.9 in)	88 years	76 of 100 (Major)
25 September 2017	Illalangi, AU	daily rain	51.0 mm (2.0 in)	26.9 mm (1.1 in)	92 years	71 of 100 (Major)
25 September 2017	Kojonup, AU	daily rain	28.2 mm (1.1 in)	12.5 mm (0.5 in)	92 years	65 of 100 (Major)
25 September 2017	Chillinup, AU	daily rain	35.0 mm (1.4 in)	29.9 mm (1.2 in)	40 years	62 of 100 (Major)
25 September 2017	Kolhapur, IN	daily rain	65.0 mm (2.6 in)	38.3 mm (1.5 in)	71 years	61 of 100 (Major)
25 September 2017	Syracuse 1NE, US	daily rain	59.7 mm (2.4 in)	34.6 mm (1.4 in)	62 years	60 of 100 (Major)
25 September 2017	Wayjo Park, AU	daily rain	35.0 mm (1.4 in)	23.1 mm (0.9 in)	52 years	59 of 100 (Notable)
25 September 2017	Tamar, AU	daily rain	55.0 mm (2.2 in)	27.8 mm (1.1 in)	39 years	58 of 100 (Notable)
25 September 2017	Little Chorkerup, AU	daily rain	39.0 mm (1.5 in)	26.3 mm (1.0 in)	46 years	58 of 100 (Notable)
25 September 2017	Cedar Bluff Dam, US	monthly rain	91.9 mm (3.6 in)	36.0 mm (1.4 in)	32 years	58 of 100 (Notable)
25 September 2017	Garden City Rgnl AP, US	daily rain	49.8 mm (2.0 in)	34.1 mm (1.3 in)	62 years	58 of 100 (Notable)
25 September 2017	Peppermint Grove, AU	daily rain	46.0 mm (1.8 in)	14.5 mm (0.6 in)	88 years	57 of 100 (Notable)
25 September 2017	Campo 7 S, US	monthly rain	96.5 mm (3.8 in)	36.3 mm (1.4 in)	29 years	57 of 100 (Notable)
25 September 2017	Windrush, AU	daily rain	57.0 mm (2.2 in)	46.4 mm (1.8 in)	42 years	56 of 100 (Notable)
25 September 2017	Neligh, US	daily rain	44.5 mm (1.8 in)	33.8 mm (1.3 in)	44 years	54 of 100 (Notable)
25 September 2017	Warriup, AU	daily rain	51.1 mm (2.0 in)	13.0 mm (0.5 in)	88 years	53 of 100 (Notable)
25 September 2017	San Simon, US	monthly low min	2.2 C (36.0 F)	1.1 C (2.0 F)	109 years	53 of 100 (Notable)
25 September 2017	Karralea, AU	daily rain	64.2 mm (2.5 in)	32.8 mm (1.3 in)	39 years	52 of 100 (Notable)
25 September 2017	Lenora Coop, US	daily rain	67.3 mm (2.6 in)	47.0 mm (1.9 in)	8 years	52 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

1825 to 2017

Records set or tied on this calendar date in each year from 1825 to 2017. 2017 had 1,253 records.

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

Records on 09-25 in each year
Year	Records
1825	1
1834	1
1836	1
1842	1
1843	1
1847	1
1851	1
1852	1
1855	1
1857	2
1859	1
1860	1
1863	1
1865	1
1866	2
1867	2
1868	1
1871	2
1872	1
1874	1
1875	1
1877	3
1879	2
1881	3
1884	3
1885	6
1886	1
1887	3
1889	7
1891	3
1893	7
1894	3
1895	5
1896	5
1897	2
1898	1
1899	2
1900	7
1901	6
1902	11
1903	4
1904	10
1905	16
1906	7
1907	35
1908	20
1909	22
1910	5
1911	9
1912	63
1913	13
1914	15
1915	43
1916	139
1917	138
1918	16
1919	20
1920	75
1921	32
1922	47
1923	68
1924	157
1925	141
1926	740
1927	166
1928	480
1929	158
1930	489
1931	500
1932	260
1933	542
1934	394
1935	258
1936	274
1937	190
1938	335
1939	454
1940	517
1941	269
1942	970
1943	488
1944	246
1945	514
1946	292
1947	666
1948	501
1949	479
1950	1,163
1951	639
1952	515
1953	242
1954	292
1955	546
1956	503
1957	231
1958	454
1959	396
1960	694
1961	530
1962	305
1963	602
1964	403
1965	690
1966	334
1967	428
1968	300
1969	196
1970	783
1971	323
1972	706
1973	650
1974	995
1975	1,166
1976	541
1977	875
1978	462
1979	719
1980	687
1981	669
1982	759
1983	647
1984	1,305
1985	446
1986	1,766
1987	560
1988	571
1989	1,367
1990	875
1991	1,243
1992	1,346
1993	1,015
1994	666
1995	1,013
1996	648
1997	1,278
1998	1,346
1999	804
2000	1,536
2001	1,536
2002	876
2003	758
2004	519
2005	1,484
2006	767
2007	1,284
2008	766
2009	854
2010	1,125
2011	763
2012	505
2013	615
2014	800
2015	868
2016	781
2017	1,253
2018	648
2019	530
2020	1,089
2021	355
2022	301
2023	580
2024	1,120
2025	569
2026	473

Download the Data

Data for records on 2017-09-25: 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	1,002
20 to 40	31
40 to 60	5
60 to 80	1
80 to 100	0
100 to 120	0
120 to 140	1