Weather Records on 20 July 1975

470 weather records were set or tied worldwide on 20 July 1975. Highest significance: Brome, CA.

Key Facts for 20 July 1975

On 20 July 1975, 470 weather records were set or tied at long-record stations worldwide.
180 were record highs and 93 were record lows, counting maximum and minimum temperature.
By timescale, 8 were all-time records, 15 monthly and 447 daily.
Brome set a monthly record daily precipitation of 95.0 mm (3.7 in) on 20 July 1975.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 459 records.

Record Map

470 stations

470 station records on 20 July 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brome	Canada	Record daily precipitation	95.0 mm (3.7 in)	74 of 100 (Major)
Milan Exp STN	United States	Record daily precipitation	101.6 mm (4.0 in)	61 of 100 (Major)
Martin U of T Branch Exp STN	United States	Record daily precipitation	233.7 mm (9.2 in)	57 of 100 (Notable)
Seminole	United States	Record daily precipitation	64.5 mm (2.5 in)	56 of 100 (Notable)
Kazan	Russia	Record daily precipitation	54.2 mm (2.1 in)	54 of 100 (Notable)
Brookport Dam 52	United States	Record daily precipitation	81.5 mm (3.2 in)	53 of 100 (Notable)
Murfreesboro 5 N	United States	Record daily precipitation	138.2 mm (5.4 in)	53 of 100 (Notable)
Sobolevo	Russia	Record daily precipitation	74.6 mm (2.9 in)	51 of 100 (Notable)
Trenton	United States	Record daily precipitation	146.1 mm (5.8 in)	51 of 100 (Notable)
Angermunde	Germany	Record daily precipitation	44.6 mm (1.8 in)	46 of 100 (Notable)
Lovelaceville	United States	Record daily precipitation	56.6 mm (2.2 in)	46 of 100 (Notable)
Ackerly 4SE	United States	Record daily precipitation	82.6 mm (3.3 in)	45 of 100 (Notable)
Huntingdon	Canada	Record high minimum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Oka	Canada	Record daily precipitation	43.2 mm (1.7 in)	43 of 100 (Notable)
Muncheberg	Germany	Record daily precipitation	50.1 mm (2.0 in)	41 of 100 (Notable)
Presa Coyote	Mexico	Record daily precipitation	26.9 mm (1.1 in)	40 of 100 (Notable)
North Bay	Canada	Record daily precipitation	60.5 mm (2.4 in)	39 of 100 (Notable)
St Catharines	Canada	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Charleston	United States	Record daily precipitation	64.3 mm (2.5 in)	39 of 100 (Notable)
Arrojado	Brazil	Record daily precipitation	31.3 mm (1.2 in)	38 of 100 (Notable)
Cerro	United States	Record daily precipitation	30.5 mm (1.2 in)	38 of 100 (Notable)
Lennoxville	Canada	Record daily precipitation	40.6 mm (1.6 in)	37 of 100 (Notable)
Macdonald College	Canada	Record daily precipitation	28.7 mm (1.1 in)	37 of 100 (Notable)
Cottbus	Germany	Record daily precipitation	28.6 mm (1.1 in)	37 of 100 (Notable)
Union City	United States	Record daily precipitation	122.4 mm (4.8 in)	37 of 100 (Notable)
Hamlin 1SW	United States	Record daily precipitation	76.2 mm (3.0 in)	37 of 100 (Notable)
Syracuse Hancock Intl AP	United States	Record daily precipitation	44.7 mm (1.8 in)	36 of 100 (Notable)
Grafton	United States	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Cimarron 4 SW	United States	Record daily precipitation	48.3 mm (1.9 in)	34 of 100 (Routine)
East Angus	Canada	Record daily precipitation	77.5 mm (3.1 in)	33 of 100 (Routine)
Farnham	Canada	Record daily precipitation	43.4 mm (1.7 in)	33 of 100 (Routine)
Lennestadt-Theten	Germany	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
Donaldsonville 4 SW	United States	Record high minimum temperature	26.7 C (80.1 F)	33 of 100 (Routine)
Northfield	United States	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Florence	United States	Record low maximum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
Durham	United States	Record high minimum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Lenorah	United States	Record daily precipitation	45.7 mm (1.8 in)	32 of 100 (Routine)
Stamford 1	United States	Record daily precipitation	66.0 mm (2.6 in)	32 of 100 (Routine)
Canton 4 SE	United States	Record high minimum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
Midland Odessa	United States	Record low maximum temperature	23.3 C (73.9 F)	32 of 100 (Routine)
Saude	Brazil	Record daily precipitation	34.8 mm (1.4 in)	31 of 100 (Routine)
St Hyacinthe	Canada	Record daily precipitation	67.3 mm (2.6 in)	31 of 100 (Routine)
Princeton Wtr Wks	United States	Record daily precipitation	167.6 mm (6.6 in)	31 of 100 (Routine)
Chasm Falls	United States	Record high minimum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Muscle Shoals AP	United States	Record daily precipitation	65.8 mm (2.6 in)	31 of 100 (Routine)
Yolla (Sea View)	Australia	Record daily precipitation	49.4 mm (1.9 in)	30 of 100 (Routine)
Moncton	Canada	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Schluchtern-Herolz	Germany	Record daily precipitation	30.0 mm (1.2 in)	30 of 100 (Routine)
Harrisburg	United States	Record daily precipitation	40.4 mm (1.6 in)	30 of 100 (Routine)
Mt Vernon	United States	Record daily precipitation	47.5 mm (1.9 in)	30 of 100 (Routine)
Eastport	United States	Record high minimum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Savannah 6 SW	United States	Record daily precipitation	58.9 mm (2.3 in)	30 of 100 (Routine)
Dolinsk	Russia	Record daily precipitation	30.7 mm (1.2 in)	29 of 100 (Routine)
Philadelphia Polisie	South Africa	Record daily precipitation	30.4 mm (1.2 in)	29 of 100 (Routine)
Dresden	United States	Record daily precipitation	170.9 mm (6.7 in)	29 of 100 (Routine)
Alpine	United States	Record daily precipitation	50.8 mm (2.0 in)	29 of 100 (Routine)
Levelland	United States	Record daily precipitation	32.5 mm (1.3 in)	29 of 100 (Routine)
Ridgley	Australia	Record daily precipitation	47.0 mm (1.9 in)	28 of 100 (Routine)
Ludenscheid (Zeppelin-Gymnasiu	Germany	Record daily precipitation	46.7 mm (1.8 in)	28 of 100 (Routine)
Buxton	United Kingdom	Record high minimum temperature	14.6 C (58.3 F)	28 of 100 (Routine)

Counts by Type and Timescale

470 records

Records set or tied on 20 July 1975 by type: Highest daily maximum 47, Lowest daily maximum 52, Highest daily minimum 133, Lowest daily minimum 41, Heaviest daily rainfall 197.

Records on 20 July 1975 by type
Record type	Records
Highest daily maximum	47
Lowest daily maximum	52
Highest daily minimum	133
Lowest daily minimum	41
Heaviest daily rainfall	197
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1975 by timescale: all-time 8, monthly 15, daily 447.

How Much Records Were Beaten By

360 broken records

Margins by which the 360 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 69.9. Ties are not counted.

Top 20 by Significance

20 July 1975

Top 20 records on 20 July 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1975	Brome, CA	monthly rain	95.0 mm (3.7 in)	27.9 mm (1.1 in)	95 years	74 of 100 (Major)
20 July 1975	Milan Exp STN, US	daily rain	101.6 mm (4.0 in)	59.4 mm (2.3 in)	53 years	61 of 100 (Major)
20 July 1975	Martin U of T Branch Exp STN, US	all-time rain	233.7 mm (9.2 in)	49.5 mm (1.9 in)	17 years	57 of 100 (Notable)
20 July 1975	Seminole, US	daily rain	64.5 mm (2.5 in)	50.5 mm (2.0 in)	46 years	56 of 100 (Notable)
20 July 1975	Kazan, RU	daily rain	54.2 mm (2.1 in)	37.2 mm (1.5 in)	16 years	54 of 100 (Notable)
20 July 1975	Brookport Dam 52, US	daily rain	81.5 mm (3.2 in)	57.4 mm (2.3 in)	32 years	53 of 100 (Notable)
20 July 1975	Murfreesboro 5 N, US	monthly rain	138.2 mm (5.4 in)	45.5 mm (1.8 in)	3 years	53 of 100 (Notable)
20 July 1975	Sobolevo, RU	daily rain	74.6 mm (2.9 in)	55.6 mm (2.2 in)	28 years	51 of 100 (Notable)
20 July 1975	Trenton, US	all-time rain	146.1 mm (5.8 in)	14.5 mm (0.6 in)	53 years	51 of 100 (Notable)
20 July 1975	Angermunde, DE	daily rain	44.6 mm (1.8 in)	20.9 mm (0.8 in)	44 years	46 of 100 (Notable)
20 July 1975	Lovelaceville, US	daily rain	56.6 mm (2.2 in)	43.9 mm (1.7 in)	44 years	46 of 100 (Notable)
20 July 1975	Ackerly 4SE, US	daily rain	82.6 mm (3.3 in)	69.9 mm (2.8 in)	8 years	45 of 100 (Notable)
20 July 1975	Huntingdon, CA	daily high min	22.2 C (72.0 F)	1.6 C (2.9 F)	100 years	44 of 100 (Notable)
20 July 1975	Oka, CA	daily rain	43.2 mm (1.7 in)	29.7 mm (1.2 in)	34 years	43 of 100 (Notable)
20 July 1975	Muncheberg, DE	daily rain	50.1 mm (2.0 in)	22.4 mm (0.9 in)	16 years	41 of 100 (Notable)
20 July 1975	Presa Coyote, MX	daily rain	26.9 mm (1.1 in)	22.8 mm (0.9 in)	30 years	40 of 100 (Notable)
20 July 1975	North Bay, CA	daily rain	60.5 mm (2.4 in)	33.1 mm (1.3 in)	4 years	39 of 100 (Notable)
20 July 1975	St Catharines, CA	daily rain	50.8 mm (2.0 in)	22.9 mm (0.9 in)	22 years	39 of 100 (Notable)
20 July 1975	Charleston, US	daily rain	64.3 mm (2.5 in)	17.1 mm (0.7 in)	69 years	39 of 100 (Notable)
20 July 1975	Arrojado, BR	daily rain	31.3 mm (1.2 in)	30.9 mm (1.2 in)	16 years	38 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

1809 to 1975

Records set or tied on this calendar date in each year from 1809 to 1975. 1975 had 470 records.

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

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 1975-07-20: 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 10	272
10 to 20	56
20 to 30	16
30 to 40	7
40 to 50	4
50 to 60	4
60 to 70	1