Weather Records on 17 September 1925

338 weather records were set or tied worldwide on 17 September 1925. Highest significance: Mirranatwa (Bullawin Park), AU.

Key Facts for 17 September 1925

On 17 September 1925, 338 weather records were set or tied at long-record stations worldwide.
208 were record highs and 34 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 337 daily.
Mirranatwa (Bullawin Park) set a daily record precipitation of 38.4 mm (1.5 in) on 17 September 1925.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 423 records.

Record Map

338 stations

338 station records on 17 September 1925 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1925: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mirranatwa (Bullawin Park)	Australia	Record daily precipitation	38.4 mm (1.5 in)	48 of 100 (Notable)
Penola Post Office	Australia	Record daily precipitation	31.0 mm (1.2 in)	47 of 100 (Notable)
Hamilton	Australia	Record daily precipitation	27.7 mm (1.1 in)	45 of 100 (Notable)
Beech Forest	Australia	Record daily precipitation	57.7 mm (2.3 in)	41 of 100 (Notable)
Penshurst (Post Office)	Australia	Record daily precipitation	28.4 mm (1.1 in)	39 of 100 (Notable)
Kiev	Ukraine	Record daily precipitation	30.3 mm (1.2 in)	37 of 100 (Notable)
Macarthur (Glenhuntly)	Australia	Record daily precipitation	29.7 mm (1.2 in)	35 of 100 (Notable)
Dunkeld	Australia	Record daily precipitation	29.2 mm (1.1 in)	34 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record low minimum temperature	6.3 C (43.3 F)	30 of 100 (Routine)
Willaura (Yarram Park)	Australia	Record daily precipitation	29.7 mm (1.2 in)	26 of 100 (Routine)
Merino (Glenorchy Estate)	Australia	Record daily precipitation	31.2 mm (1.2 in)	26 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record low maximum temperature	12.8 C (55.0 F)	25 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low minimum temperature	-1.1 C (30.0 F)	24 of 100 (Routine)
Jamieson	Australia	Record daily precipitation	33.0 mm (1.3 in)	24 of 100 (Routine)
Paterson	United States	Record daily precipitation	25.4 mm (1.0 in)	24 of 100 (Routine)
Natural Brg	United States	Record daily precipitation	44.5 mm (1.8 in)	23 of 100 (Routine)
Belvidere	United States	Record daily precipitation	47.5 mm (1.9 in)	23 of 100 (Routine)
Merino	Australia	Record daily precipitation	40.1 mm (1.6 in)	22 of 100 (Routine)
Odesa	Ukraine	Record low maximum temperature	11.4 C (52.5 F)	22 of 100 (Routine)
Frances	Australia	Record daily precipitation	23.1 mm (0.9 in)	20 of 100 (Routine)
Mount Gambier Post Office	Australia	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Greenock	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Victoria Valley	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Freeling Railway	Australia	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Cape Northumberland	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Naracoorte	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Naracoorte Cave Range	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Lillimur Estate	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Coleraine (Tulse Hill)	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Montgomery Wb City	United States	Record high minimum temperature	24.4 C (75.9 F)	20 of 100 (Routine)
Buckeye	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Adelaide (Salisbury Bowling Cl	Australia	Record daily precipitation	11.9 mm (0.5 in)	19 of 100 (Routine)
Meadows	Australia	Record daily precipitation	37.3 mm (1.5 in)	19 of 100 (Routine)
Clermont Sirius St	Australia	Record daily precipitation	16.3 mm (0.6 in)	19 of 100 (Routine)
Innsbruck	Austria	Record low maximum temperature	12.4 C (54.3 F)	19 of 100 (Routine)
Bird Island	United States	Record high minimum temperature	22.2 C (72.0 F)	19 of 100 (Routine)
Casterton (Roseneath)	Australia	Record daily precipitation	24.9 mm (1.0 in)	18 of 100 (Routine)
Casterton (Warrock)	Australia	Record daily precipitation	19.1 mm (0.8 in)	18 of 100 (Routine)
Mortlake	Australia	Record daily precipitation	12.7 mm (0.5 in)	18 of 100 (Routine)
Kremsmuenster	Austria	Record low minimum temperature	2.0 C (35.6 F)	18 of 100 (Routine)
Wien	Austria	Record low minimum temperature	3.6 C (38.5 F)	18 of 100 (Routine)
Port Arthur	Canada	Record daily precipitation	24.4 mm (1.0 in)	18 of 100 (Routine)
Escanaba	United States	Record high minimum temperature	17.8 C (64.0 F)	18 of 100 (Routine)
Thowgla Upper	Australia	Record daily precipitation	35.3 mm (1.4 in)	17 of 100 (Routine)
Port Fairy (Griffiths Island)	Australia	Record daily precipitation	12.4 mm (0.5 in)	17 of 100 (Routine)
Carapook (the Gums)	Australia	Record daily precipitation	17.0 mm (0.7 in)	17 of 100 (Routine)
Yarmouth	Canada	Record daily precipitation	44.7 mm (1.8 in)	17 of 100 (Routine)
Talbotton	United States	Record high maximum temperature	37.8 C (100.0 F)	17 of 100 (Routine)
Alta	United States	Record high minimum temperature	21.7 C (71.1 F)	17 of 100 (Routine)
Carroll	United States	Record high minimum temperature	22.8 C (73.0 F)	17 of 100 (Routine)
Charlevoix	United States	Record high maximum temperature	30.6 C (87.1 F)	17 of 100 (Routine)
Albert Lea 3SE	United States	Record high minimum temperature	20.6 C (69.1 F)	17 of 100 (Routine)
St Peter	United States	Record high minimum temperature	22.8 C (73.0 F)	17 of 100 (Routine)
Waynesboro 2 W	United States	Record high maximum temperature	36.7 C (98.1 F)	17 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record low maximum temperature	14.4 C (57.9 F)	17 of 100 (Routine)
Wartook Reservoir	Australia	Record daily precipitation	21.6 mm (0.9 in)	16 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	9.8 C (49.6 F)	16 of 100 (Routine)
Woolsthorpe	Australia	Record daily precipitation	8.9 mm (0.35 in)	16 of 100 (Routine)
Kremsmuenster	Austria	Record daily precipitation	12.7 mm (0.5 in)	16 of 100 (Routine)
Salzburg	Austria	Record low minimum temperature	4.0 C (39.2 F)	16 of 100 (Routine)

Counts by Type and Timescale

338 records

Records set or tied on 17 September 1925 by type: Highest daily maximum 113, Lowest daily maximum 21, Highest daily minimum 95, Lowest daily minimum 13, Heaviest daily rainfall 95, Heaviest daily snowfall 1.

Records on 17 September 1925 by type
Record type	Records
Highest daily maximum	113
Lowest daily maximum	21
Highest daily minimum	95
Lowest daily minimum	13
Heaviest daily rainfall	95
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 17 September 1925 by timescale: all-time 0, monthly 1, daily 337.

How Much Records Were Beaten By

269 broken records

Margins by which the 269 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 32.3. Ties are not counted.

Top 20 by Significance

17 September 1925

Top 20 records on 17 September 1925 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1925	Mirranatwa (Bullawin Park), AU	daily rain	38.4 mm (1.5 in)	24.9 mm (1.0 in)	26 years	48 of 100 (Notable)
17 September 1925	Penola Post Office, AU	daily rain	31.0 mm (1.2 in)	22.1 mm (0.9 in)	12 years	47 of 100 (Notable)
17 September 1925	Hamilton, AU	daily rain	27.7 mm (1.1 in)	17.5 mm (0.7 in)	26 years	45 of 100 (Notable)
17 September 1925	Beech Forest, AU	daily rain	57.7 mm (2.3 in)	32.3 mm (1.3 in)	32 years	41 of 100 (Notable)
17 September 1925	Penshurst (Post Office), AU	daily rain	28.4 mm (1.1 in)	17.0 mm (0.7 in)	26 years	39 of 100 (Notable)
17 September 1925	Kiev, UA	daily rain	30.3 mm (1.2 in)	19.0 mm (0.7 in)	20 years	37 of 100 (Notable)
17 September 1925	Macarthur (Glenhuntly), AU	daily rain	29.7 mm (1.2 in)	13.7 mm (0.5 in)	31 years	35 of 100 (Notable)
17 September 1925	Dunkeld, AU	daily rain	29.2 mm (1.1 in)	13.2 mm (0.5 in)	26 years	34 of 100 (Routine)
17 September 1925	Nuwara Eliya, LK	daily low min	6.3 C (43.3 F)	2.0 C (3.6 F)	47 years	30 of 100 (Routine)
17 September 1925	Willaura (Yarram Park), AU	daily rain	29.7 mm (1.2 in)	14.2 mm (0.6 in)	4 years	26 of 100 (Routine)
17 September 1925	Merino (Glenorchy Estate), AU	daily rain	31.2 mm (1.2 in)	12.7 mm (0.5 in)	4 years	26 of 100 (Routine)
17 September 1925	Deniliquin (Wilkinson St), AU	daily low max	12.8 C (55.0 F)	1.1 C (2.0 F)	57 years	25 of 100 (Routine)
17 September 1925	Forbes (Camp Street), AU	daily low min	-1.1 C (30.0 F)	2.2 C (4.0 F)	48 years	24 of 100 (Routine)
17 September 1925	Jamieson, AU	daily rain	33.0 mm (1.3 in)	18.3 mm (0.7 in)	12 years	24 of 100 (Routine)
17 September 1925	Paterson, US	daily rain	25.4 mm (1.0 in)	4.1 mm (0.16 in)	54 years	24 of 100 (Routine)
17 September 1925	Natural Brg, US	daily rain	44.5 mm (1.8 in)	31.8 mm (1.3 in)	2 years	23 of 100 (Routine)
17 September 1925	Belvidere, US	daily rain	47.5 mm (1.9 in)	22.6 mm (0.9 in)	22 years	23 of 100 (Routine)
17 September 1925	Merino, AU	monthly rain	40.1 mm (1.6 in)	4.8 mm (0.19 in)	1 year	22 of 100 (Routine)
17 September 1925	Odesa, UA	daily low max	11.4 C (52.5 F)	4.0 C (7.2 F)	30 years	22 of 100 (Routine)
17 September 1925	Frances, AU	daily rain	23.1 mm (0.9 in)	7.9 mm (0.31 in)	28 years	20 of 100 (Routine)

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

1796 to 1925

Records set or tied on this calendar date in each year from 1796 to 1925. 1925 had 338 records.

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

Records on 09-17 in each year
Year	Records
1796	1
1797	1
1805	1
1833	1
1834	1
1837	2
1845	1
1847	3
1848	1
1850	1
1851	2
1853	2
1854	2
1859	1
1862	1
1867	1
1870	1
1871	1
1872	1
1873	1
1874	1
1875	1
1877	1
1881	1
1882	2
1884	3
1885	3
1886	6
1888	2
1889	8
1891	1
1893	3
1894	1
1895	4
1896	9
1897	4
1898	7
1899	1
1900	4
1901	5
1902	5
1903	28
1904	2
1905	17
1906	10
1907	15
1908	13
1909	7
1910	38
1911	15
1912	17
1913	28
1914	38
1915	48
1916	40
1917	255
1918	41
1919	21
1920	40
1921	66
1922	47
1923	159
1924	80
1925	338
1926	154
1927	420
1928	78
1929	168
1930	147
1931	564
1932	425
1933	415
1934	246
1935	321
1936	219
1937	463
1938	363
1939	294
1940	326
1941	328
1942	581
1943	513
1944	403
1945	614
1946	620
1947	680
1948	630
1949	292
1950	412
1951	359
1952	263
1953	344
1954	449
1955	649
1956	437
1957	405
1958	806
1959	1,210
1960	385
1961	657
1962	432
1963	297
1964	559
1965	1,394
1966	523
1967	331
1968	691
1969	352
1970	412
1971	898
1972	556
1973	638
1974	491
1975	478
1976	636
1977	641
1978	764
1979	804
1980	794
1981	1,155
1982	606
1983	862
1984	1,006
1985	448
1986	1,314
1987	926
1988	982
1989	863
1990	650
1991	1,407
1992	686
1993	950
1994	986
1995	1,145
1996	1,342
1997	1,057
1998	1,137
1999	1,102
2000	1,318
2001	895
2002	1,025
2003	586
2004	872
2005	1,042
2006	1,344
2007	752
2008	886
2009	871
2010	907
2011	1,116
2012	597
2013	1,253
2014	571
2015	953
2016	707
2017	455
2018	899
2019	774
2020	651
2021	345
2022	313
2023	646
2024	954
2025	634
2026	968

Download the Data

Data for records on 1925-09-17: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 5	225
5 to 10	24
10 to 15	10
15 to 20	4
20 to 25	4
25 to 30	0
30 to 35	2