Weather Records on 25 September 1975

1,166 weather records were set or tied worldwide on 25 September 1975. Highest significance: Montreal McGill, CA.

Key Facts for 25 September 1975

On 25 September 1975, 1,166 weather records were set or tied at long-record stations worldwide.
108 were record highs and 644 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 79 monthly and 1,087 daily.
Montreal McGill set a daily record precipitation of 53.1 mm (2.1 in) on 25 September 1975.
Across 163 earlier years (1825 to 2026) the same calendar date averaged 421 records.

Record Map

1,166 stations

1,166 station records on 25 September 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 September 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Montreal McGill	Canada	Record daily precipitation	53.1 mm (2.1 in)	64 of 100 (Major)
Huntingdon	Canada	Record daily precipitation	53.8 mm (2.1 in)	62 of 100 (Major)
Carlisle	United States	Record daily precipitation	105.4 mm (4.1 in)	60 of 100 (Major)
Chillagoe Atherton Street	Australia	Record daily precipitation	42.4 mm (1.7 in)	59 of 100 (Notable)
Macdonald College	Canada	Record daily precipitation	62.0 mm (2.4 in)	58 of 100 (Notable)
Old Forge	United States	Record daily precipitation	59.7 mm (2.4 in)	58 of 100 (Notable)
Chambersburg 1 ESE	United States	Record daily precipitation	70.6 mm (2.8 in)	58 of 100 (Notable)
Kemptville	Canada	Record daily precipitation	58.7 mm (2.3 in)	57 of 100 (Notable)
Les Cedres	Canada	Record daily precipitation	68.3 mm (2.7 in)	56 of 100 (Notable)
Shippensburg	United States	Record daily precipitation	103.4 mm (4.1 in)	56 of 100 (Notable)
Aberdeen Phillips Fld	United States	Record daily precipitation	85.6 mm (3.4 in)	54 of 100 (Notable)
Harrisburg Capital City AP	United States	Record daily precipitation	108.7 mm (4.3 in)	53 of 100 (Notable)
Orje	Norway	Record daily precipitation	43.8 mm (1.7 in)	52 of 100 (Notable)
Oka	Canada	Record daily precipitation	55.4 mm (2.2 in)	51 of 100 (Notable)
Hagerstown	United States	Record daily precipitation	79.5 mm (3.1 in)	51 of 100 (Notable)
Huntsdale	United States	Record daily precipitation	92.7 mm (3.6 in)	51 of 100 (Notable)
Washington Reagan Natl AP	United States	Record daily precipitation	87.9 mm (3.5 in)	51 of 100 (Notable)
Quantico MCAS	United States	Record daily precipitation	69.6 mm (2.7 in)	51 of 100 (Notable)
L'Assomption	Canada	Record daily precipitation	48.0 mm (1.9 in)	50 of 100 (Notable)
Fredericksburg Np	United States	Record daily precipitation	65.8 mm (2.6 in)	50 of 100 (Notable)
Kookabookra	Australia	Record daily precipitation	33.2 mm (1.3 in)	49 of 100 (Notable)
St Jerome	Canada	Record daily precipitation	56.6 mm (2.2 in)	49 of 100 (Notable)
Norfolk 2 SW	United States	Record daily precipitation	69.3 mm (2.7 in)	49 of 100 (Notable)
Riverton	United States	Record daily precipitation	74.2 mm (2.9 in)	49 of 100 (Notable)
Morrisburg	Canada	Record daily precipitation	52.3 mm (2.1 in)	48 of 100 (Notable)
St Hyacinthe	Canada	Record daily precipitation	40.4 mm (1.6 in)	47 of 100 (Notable)
Middletown 4 W	United States	Record daily precipitation	47.5 mm (1.9 in)	47 of 100 (Notable)
Wellsboro 4 SW	United States	Record daily precipitation	49.0 mm (1.9 in)	47 of 100 (Notable)
Djurskog	Sweden	Record daily precipitation	42.1 mm (1.7 in)	46 of 100 (Notable)
Windham 3 E	United States	Record daily precipitation	45.7 mm (1.8 in)	46 of 100 (Notable)
Bear Gap	United States	Record daily precipitation	86.4 mm (3.4 in)	45 of 100 (Notable)
Palmerville	Australia	Record daily precipitation	35.7 mm (1.4 in)	44 of 100 (Notable)
Upper Orara (Aurania)	Australia	Record daily precipitation	65.8 mm (2.6 in)	44 of 100 (Notable)
Ness City	United States	Record low minimum temperature	-1.7 C (28.9 F)	44 of 100 (Notable)
Westfield	United States	Record daily precipitation	82.0 mm (3.2 in)	44 of 100 (Notable)
Lowville	United States	Record daily precipitation	39.4 mm (1.6 in)	44 of 100 (Notable)
Johnstown	United States	Record daily precipitation	34.3 mm (1.4 in)	44 of 100 (Notable)
Jackson Exp STN	United States	Record low maximum temperature	12.2 C (54.0 F)	44 of 100 (Notable)
Buckingham	United States	Record daily precipitation	42.7 mm (1.7 in)	44 of 100 (Notable)
Eton Police Station	Australia	Record daily precipitation	27.0 mm (1.1 in)	43 of 100 (Notable)
Ottawa Cda	Canada	Record daily precipitation	30.2 mm (1.2 in)	43 of 100 (Notable)
Carmel	United States	Record daily precipitation	77.0 mm (3.0 in)	43 of 100 (Notable)
Tullahoma	United States	Record low maximum temperature	12.8 C (55.0 F)	43 of 100 (Notable)
Calen Post Office	Australia	Record daily precipitation	44.0 mm (1.7 in)	42 of 100 (Notable)
Lismore (Centre Street)	Australia	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Urunga (Sunset Place)	Australia	Record daily precipitation	49.0 mm (1.9 in)	42 of 100 (Notable)
Palermo	Italy	Record daily precipitation	27.0 mm (1.1 in)	42 of 100 (Notable)
La Piedad de Cabadas (Dge)	Mexico	Record low minimum temperature	7.2 C (45.0 F)	42 of 100 (Notable)
Glenn Dale Bell STN	United States	Record daily precipitation	74.2 mm (2.9 in)	42 of 100 (Notable)
Amherst	United States	Record daily precipitation	58.4 mm (2.3 in)	42 of 100 (Notable)
Union City	United States	Record low maximum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
Ste Clothilde Cda	Canada	Record daily precipitation	40.9 mm (1.6 in)	41 of 100 (Notable)
Rockville 1 NE	United States	Record daily precipitation	39.1 mm (1.5 in)	41 of 100 (Notable)
Oxford 1 E	United States	Record daily precipitation	70.6 mm (2.8 in)	41 of 100 (Notable)
Risnes I Fjotland	Norway	Record daily precipitation	58.1 mm (2.3 in)	40 of 100 (Notable)
Roebling	United States	Record daily precipitation	43.9 mm (1.7 in)	40 of 100 (Notable)
Sussex 1 NW	United States	Record daily precipitation	63.0 mm (2.5 in)	40 of 100 (Notable)
Le Roy	United States	Record daily precipitation	48.3 mm (1.9 in)	40 of 100 (Notable)
S Mtn	United States	Record daily precipitation	66.5 mm (2.6 in)	40 of 100 (Notable)
Wilkes Barre	United States	Record daily precipitation	72.9 mm (2.9 in)	40 of 100 (Notable)

Counts by Type and Timescale

1,166 records

Records set or tied on 25 September 1975 by type: Highest daily maximum 33, Lowest daily maximum 248, Highest daily minimum 75, Lowest daily minimum 396, Heaviest daily rainfall 414.

Records on 25 September 1975 by type
Record type	Records
Highest daily maximum	33
Lowest daily maximum	248
Highest daily minimum	75
Lowest daily minimum	396
Heaviest daily rainfall	414
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 25 September 1975 by timescale: all-time 0, monthly 79, daily 1,087.

How Much Records Were Beaten By

948 broken records

Margins by which the 948 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 83.4. Ties are not counted.

Top 20 by Significance

25 September 1975

Top 20 records on 25 September 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 September 1975	Montreal McGill, CA	daily rain	53.1 mm (2.1 in)	33.8 mm (1.3 in)	64 years	64 of 100 (Major)
25 September 1975	Huntingdon, CA	daily rain	53.8 mm (2.1 in)	23.6 mm (0.9 in)	91 years	62 of 100 (Major)
25 September 1975	Carlisle, US	daily rain	105.4 mm (4.1 in)	72.1 mm (2.8 in)	34 years	60 of 100 (Major)
25 September 1975	Chillagoe Atherton Street, AU	daily rain	42.4 mm (1.7 in)	41.4 mm (1.6 in)	41 years	59 of 100 (Notable)
25 September 1975	Macdonald College, CA	daily rain	62.0 mm (2.4 in)	45.2 mm (1.8 in)	38 years	58 of 100 (Notable)
25 September 1975	Old Forge, US	daily rain	59.7 mm (2.4 in)	39.9 mm (1.6 in)	62 years	58 of 100 (Notable)
25 September 1975	Chambersburg 1 ESE, US	daily rain	70.6 mm (2.8 in)	51.3 mm (2.0 in)	34 years	58 of 100 (Notable)
25 September 1975	Kemptville, CA	daily rain	58.7 mm (2.3 in)	52.1 mm (2.1 in)	44 years	57 of 100 (Notable)
25 September 1975	Les Cedres, CA	daily rain	68.3 mm (2.7 in)	57.4 mm (2.3 in)	36 years	56 of 100 (Notable)
25 September 1975	Shippensburg, US	daily rain	103.4 mm (4.1 in)	64.5 mm (2.5 in)	34 years	56 of 100 (Notable)
25 September 1975	Aberdeen Phillips Fld, US	daily rain	85.6 mm (3.4 in)	65.8 mm (2.6 in)	34 years	54 of 100 (Notable)
25 September 1975	Harrisburg Capital City AP, US	daily rain	108.7 mm (4.3 in)	70.1 mm (2.8 in)	34 years	53 of 100 (Notable)
25 September 1975	Orje, NO	daily rain	43.8 mm (1.7 in)	20.8 mm (0.8 in)	48 years	52 of 100 (Notable)
25 September 1975	Oka, CA	daily rain	55.4 mm (2.2 in)	47.0 mm (1.9 in)	29 years	51 of 100 (Notable)
25 September 1975	Hagerstown, US	daily rain	79.5 mm (3.1 in)	77.0 mm (3.0 in)	12 years	51 of 100 (Notable)
25 September 1975	Huntsdale, US	daily rain	92.7 mm (3.6 in)	78.7 mm (3.1 in)	28 years	51 of 100 (Notable)
25 September 1975	Washington Reagan Natl AP, US	daily rain	87.9 mm (3.5 in)	77.0 mm (3.0 in)	28 years	51 of 100 (Notable)
25 September 1975	Quantico MCAS, US	daily rain	69.6 mm (2.7 in)	54.1 mm (2.1 in)	28 years	51 of 100 (Notable)
25 September 1975	L'Assomption, CA	daily rain	48.0 mm (1.9 in)	38.3 mm (1.5 in)	29 years	50 of 100 (Notable)
25 September 1975	Fredericksburg Np, US	daily rain	65.8 mm (2.6 in)	33.3 mm (1.3 in)	75 years	50 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 1975

Records set or tied on this calendar date in each year from 1825 to 1975. 1975 had 1,166 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 1975-09-25: 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	848
20 to 40	75
40 to 60	17
60 to 80	7
80 to 100	1