Weather Records on 31 July 1975

1,386 weather records were set or tied worldwide on 31 July 1975. Highest significance: Adelaide West Terrace, AU.

Key Facts for 31 July 1975

On 31 July 1975, 1,386 weather records were set or tied at long-record stations worldwide.
338 were record highs and 429 were record lows, counting maximum and minimum temperature.
By timescale, 10 were all-time records, 45 monthly and 1,331 daily.
Adelaide West Terrace set a daily record precipitation of 36.6 mm (1.4 in) on 31 July 1975.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 465 records.

Record Map

1,386 stations

1,386 station records on 31 July 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Adelaide West Terrace	Australia	Record daily precipitation	36.6 mm (1.4 in)	80 of 100 (Exceptional)
Port Wakefield	Australia	Record daily precipitation	27.6 mm (1.1 in)	73 of 100 (Major)
Oktjabrskij-Gorodok	Russia	Record daily precipitation	39.2 mm (1.5 in)	70 of 100 (Major)
Budgerum East	Australia	Record daily precipitation	118.0 mm (4.6 in)	68 of 100 (Major)
Coromandel Valley (Branden)	Australia	Record daily precipitation	45.6 mm (1.8 in)	67 of 100 (Major)
Balaklava	Australia	Record daily precipitation	25.4 mm (1.0 in)	65 of 100 (Major)
Hamilton	Australia	Record daily precipitation	29.2 mm (1.1 in)	65 of 100 (Major)
Old Noarlunga Post Office	Australia	Record daily precipitation	43.6 mm (1.7 in)	64 of 100 (Major)
Adelaide (Tea Tree Gully Counc	Australia	Record daily precipitation	33.0 mm (1.3 in)	64 of 100 (Major)
Penshurst (Post Office)	Australia	Record daily precipitation	32.0 mm (1.3 in)	63 of 100 (Major)
Brewton 3 SSE	United States	Record daily precipitation	200.2 mm (7.9 in)	62 of 100 (Major)
Glenthompson (Brie Brie)	Australia	Record daily precipitation	29.2 mm (1.1 in)	60 of 100 (Major)
Bay Minette	United States	Record daily precipitation	224.5 mm (8.8 in)	60 of 100 (Major)
Evergreen	United States	Record daily precipitation	165.1 mm (6.5 in)	60 of 100 (Major)
Wallace 2 E	United States	Record daily precipitation	185.4 mm (7.3 in)	60 of 100 (Major)
Adelaide (Glen Osmond)	Australia	Record daily precipitation	39.4 mm (1.6 in)	59 of 100 (Notable)
Adelaide (Port Dock Railway St	Australia	Record daily precipitation	30.4 mm (1.2 in)	59 of 100 (Notable)
Belair (State Flora Nursery)	Australia	Record daily precipitation	44.6 mm (1.8 in)	59 of 100 (Notable)
Moonta	Australia	Record daily precipitation	28.2 mm (1.1 in)	58 of 100 (Notable)
Ardrossan (Winulta)	Australia	Record daily precipitation	26.8 mm (1.1 in)	58 of 100 (Notable)
Big Sandy	United States	Record daily precipitation	43.7 mm (1.7 in)	58 of 100 (Notable)
Savage	United States	Record daily precipitation	54.6 mm (2.1 in)	58 of 100 (Notable)
North Adelaide	Australia	Record daily precipitation	34.8 mm (1.4 in)	57 of 100 (Notable)
Adelaide (Pooraka)	Australia	Record daily precipitation	33.2 mm (1.3 in)	57 of 100 (Notable)
Adelaide (Thorndon Park)	Australia	Record daily precipitation	35.0 mm (1.4 in)	57 of 100 (Notable)
Maitland (Weetulta)	Australia	Record daily precipitation	30.6 mm (1.2 in)	56 of 100 (Notable)
Cavendish (Post Office)	Australia	Record daily precipitation	27.2 mm (1.1 in)	56 of 100 (Notable)
St Peters Post Office	Australia	Record daily precipitation	34.0 mm (1.3 in)	55 of 100 (Notable)
Clarendon	Australia	Record daily precipitation	46.6 mm (1.8 in)	55 of 100 (Notable)
Adelaide (Glenside)	Australia	Record daily precipitation	36.6 mm (1.4 in)	54 of 100 (Notable)
Adelaide (Trinity Gardens)	Australia	Record daily precipitation	38.1 mm (1.5 in)	54 of 100 (Notable)
Biddle	United States	Record daily precipitation	31.8 mm (1.3 in)	54 of 100 (Notable)
Adelaide (Unley)	Australia	Record daily precipitation	36.2 mm (1.4 in)	53 of 100 (Notable)
Brewster 4W	United States	Record daily precipitation	83.8 mm (3.3 in)	53 of 100 (Notable)
Chinook	United States	Record daily precipitation	46.5 mm (1.8 in)	53 of 100 (Notable)
Adelaide (Waite Institute)	Australia	Record daily precipitation	36.2 mm (1.4 in)	52 of 100 (Notable)
Casterton (Warrock)	Australia	Record daily precipitation	29.0 mm (1.1 in)	52 of 100 (Notable)
Wallaroo	Australia	Record daily precipitation	27.2 mm (1.1 in)	51 of 100 (Notable)
Goolwa Council Depot	Australia	Record daily precipitation	27.2 mm (1.1 in)	51 of 100 (Notable)
Lake Leake (Kooeeyong)	Australia	Record daily precipitation	30.2 mm (1.2 in)	51 of 100 (Notable)
High Point	Canada	Record daily precipitation	43.7 mm (1.7 in)	51 of 100 (Notable)
Penshurst (the Gums)	Australia	Record daily precipitation	29.6 mm (1.2 in)	50 of 100 (Notable)
Montello 2NE	United States	Record low maximum temperature	19.4 C (66.9 F)	50 of 100 (Notable)
Penola Post Office	Australia	Record daily precipitation	28.6 mm (1.1 in)	49 of 100 (Notable)
Moutajup	Australia	Record daily precipitation	31.6 mm (1.2 in)	49 of 100 (Notable)
Koroit	Australia	Record daily precipitation	31.0 mm (1.2 in)	49 of 100 (Notable)
Carville 2 SW	United States	Record daily precipitation	105.7 mm (4.2 in)	49 of 100 (Notable)
Jordan	United States	Record daily precipitation	46.2 mm (1.8 in)	49 of 100 (Notable)
Wandearah North	Australia	Record daily precipitation	26.4 mm (1.0 in)	48 of 100 (Notable)
Yankalilla	Australia	Record daily precipitation	35.0 mm (1.4 in)	48 of 100 (Notable)
Dunkeld	Australia	Record daily precipitation	26.8 mm (1.1 in)	48 of 100 (Notable)
Highland Home	United States	Record low maximum temperature	22.8 C (73.0 F)	48 of 100 (Notable)
Adelaide (Torrens Island)	Australia	Record daily precipitation	25.6 mm (1.0 in)	47 of 100 (Notable)
Belair (Kalyra)	Australia	Record daily precipitation	40.4 mm (1.6 in)	47 of 100 (Notable)
Port Elliot Caravan Park	Australia	Record daily precipitation	27.4 mm (1.1 in)	47 of 100 (Notable)
Keith	Australia	Record daily precipitation	25.8 mm (1.0 in)	47 of 100 (Notable)
Recanto	Brazil	Record daily precipitation	30.0 mm (1.2 in)	47 of 100 (Notable)
Whatley	United States	Record daily precipitation	123.2 mm (4.9 in)	47 of 100 (Notable)
Chester	United States	Record daily precipitation	27.4 mm (1.1 in)	47 of 100 (Notable)
Ft Assiniboine	United States	Record daily precipitation	48.3 mm (1.9 in)	47 of 100 (Notable)

Counts by Type and Timescale

1,386 records

Records set or tied on 31 July 1975 by type: Highest daily maximum 172, Lowest daily maximum 297, Highest daily minimum 166, Lowest daily minimum 132, Heaviest daily rainfall 619.

Records on 31 July 1975 by type
Record type	Records
Highest daily maximum	172
Lowest daily maximum	297
Highest daily minimum	166
Lowest daily minimum	132
Heaviest daily rainfall	619
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 1975 by timescale: all-time 10, monthly 45, daily 1,331.

How Much Records Were Beaten By

1,183 broken records

Margins by which the 1,183 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 173.7. Ties are not counted.

Top 20 by Significance

31 July 1975

Top 20 records on 31 July 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1975	Adelaide West Terrace, AU	daily rain	36.6 mm (1.4 in)	21.4 mm (0.8 in)	112 years	80 of 100 (Exceptional)
31 July 1975	Port Wakefield, AU	daily rain	27.6 mm (1.1 in)	13.4 mm (0.5 in)	76 years	73 of 100 (Major)
31 July 1975	Oktjabrskij-Gorodok, RU	daily rain	39.2 mm (1.5 in)	28.4 mm (1.1 in)	72 years	70 of 100 (Major)
31 July 1975	Budgerum East, AU	all-time rain	118.0 mm (4.6 in)	40.5 mm (1.6 in)	19 years	68 of 100 (Major)
31 July 1975	Coromandel Valley (Branden), AU	daily rain	45.6 mm (1.8 in)	25.0 mm (1.0 in)	64 years	67 of 100 (Major)
31 July 1975	Balaklava, AU	daily rain	25.4 mm (1.0 in)	16.3 mm (0.6 in)	53 years	65 of 100 (Major)
31 July 1975	Hamilton, AU	daily rain	29.2 mm (1.1 in)	17.8 mm (0.7 in)	56 years	65 of 100 (Major)
31 July 1975	Old Noarlunga Post Office, AU	monthly rain	43.6 mm (1.7 in)	9.3 mm (0.37 in)	88 years	64 of 100 (Major)
31 July 1975	Adelaide (Tea Tree Gully Counc, AU	daily rain	33.0 mm (1.3 in)	17.8 mm (0.7 in)	76 years	64 of 100 (Major)
31 July 1975	Penshurst (Post Office), AU	daily rain	32.0 mm (1.3 in)	15.0 mm (0.6 in)	80 years	63 of 100 (Major)
31 July 1975	Brewton 3 SSE, US	monthly rain	200.2 mm (7.9 in)	83.1 mm (3.3 in)	25 years	62 of 100 (Major)
31 July 1975	Glenthompson (Brie Brie), AU	daily rain	29.2 mm (1.1 in)	13.5 mm (0.5 in)	79 years	60 of 100 (Major)
31 July 1975	Bay Minette, US	daily rain	224.5 mm (8.8 in)	173.7 mm (6.8 in)	48 years	60 of 100 (Major)
31 July 1975	Evergreen, US	daily rain	165.1 mm (6.5 in)	131.1 mm (5.2 in)	42 years	60 of 100 (Major)
31 July 1975	Wallace 2 E, US	monthly rain	185.4 mm (7.3 in)	96.5 mm (3.8 in)	24 years	60 of 100 (Major)
31 July 1975	Adelaide (Glen Osmond), AU	daily rain	39.4 mm (1.6 in)	25.4 mm (1.0 in)	36 years	59 of 100 (Notable)
31 July 1975	Adelaide (Port Dock Railway St, AU	daily rain	30.4 mm (1.2 in)	22.0 mm (0.9 in)	48 years	59 of 100 (Notable)
31 July 1975	Belair (State Flora Nursery), AU	daily rain	44.6 mm (1.8 in)	29.1 mm (1.1 in)	36 years	59 of 100 (Notable)
31 July 1975	Moonta, AU	daily rain	28.2 mm (1.1 in)	13.7 mm (0.5 in)	53 years	58 of 100 (Notable)
31 July 1975	Ardrossan (Winulta), AU	daily rain	26.8 mm (1.1 in)	14.4 mm (0.6 in)	53 years	58 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

1804 to 1975

Records set or tied on this calendar date in each year from 1804 to 1975. 1975 had 1,386 records.

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

Records on 07-31 in each year
Year	Records
1804	1
1815	1
1816	1
1828	1
1834	1
1839	1
1840	1
1841	2
1851	1
1858	2
1860	4
1863	1
1866	1
1873	2
1876	1
1879	1
1884	1
1885	1
1886	1
1887	5
1889	2
1890	2
1891	1
1892	1
1893	3
1894	2
1896	2
1897	2
1898	5
1900	1
1901	3
1902	4
1903	16
1904	12
1905	10
1906	14
1907	17
1908	22
1909	15
1910	21
1911	29
1912	14
1913	31
1914	28
1915	71
1916	63
1917	126
1918	39
1919	27
1920	168
1921	112
1922	24
1923	236
1924	97
1925	349
1926	226
1927	161
1928	145
1929	134
1930	143
1931	441
1932	314
1933	504
1934	449
1935	418
1936	548
1937	297
1938	417
1939	357
1940	415
1941	323
1942	342
1943	342
1944	312
1945	499
1946	426
1947	341
1948	341
1949	406
1950	511
1951	364
1952	472
1953	414
1954	459
1955	813
1956	574
1957	268
1958	374
1959	424
1960	622
1961	504
1962	348
1963	294
1964	637
1965	858
1966	606
1967	326
1968	637
1969	440
1970	576
1971	1,850
1972	667
1973	583
1974	363
1975	1,386
1976	530
1977	543
1978	754
1979	501
1980	1,047
1981	672
1982	767
1983	901
1984	777
1985	1,065
1986	1,021
1987	934
1988	940
1989	1,753
1990	911
1991	647
1992	1,169
1993	1,031
1994	1,207
1995	1,223
1996	1,084
1997	984
1998	1,195
1999	1,643
2000	1,001
2001	1,414
2002	1,080
2003	1,157
2004	779
2005	742
2006	1,405
2007	1,023
2008	911
2009	1,156
2010	1,485
2011	1,040
2012	712
2013	469
2014	1,000
2015	948
2016	501
2017	485
2018	1,135
2019	551
2020	1,034
2021	1,020
2022	861
2023	671
2024	748
2025	836
2026	754

Download the Data

Data for records on 1975-07-31: 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 25	1,133
25 to 50	38
50 to 75	5
75 to 100	5
100 to 125	0
125 to 150	1
150 to 175	1