Weather Records on 20 July 1971

619 weather records were set or tied worldwide on 20 July 1971. Highest significance: Joao Amaro, BR.

Key Facts for 20 July 1971

On 20 July 1971, 619 weather records were set or tied at long-record stations worldwide.
123 were record highs and 336 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 618 daily.
Joao Amaro set a daily record precipitation of 33.0 mm (1.3 in) on 20 July 1971.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 458 records.

Record Map

619 stations

619 station records on 20 July 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Joao Amaro	Brazil	Record daily precipitation	33.0 mm (1.3 in)	59 of 100 (Notable)
Gatlinburg 2 SW	United States	Record daily precipitation	112.5 mm (4.4 in)	54 of 100 (Notable)
Spier Falls	United States	Record daily precipitation	64.8 mm (2.6 in)	53 of 100 (Notable)
Krasnyj Chikoj	Russia	Record daily precipitation	53.5 mm (2.1 in)	48 of 100 (Notable)
Lake Konomoc	United States	Record daily precipitation	83.8 mm (3.3 in)	46 of 100 (Notable)
Kabansk	Russia	Record daily precipitation	74.8 mm (2.9 in)	45 of 100 (Notable)
Plymouth-Kingston	United States	Record daily precipitation	40.6 mm (1.6 in)	44 of 100 (Notable)
Cluj Napoca	Romania	Record daily precipitation	44.6 mm (1.8 in)	41 of 100 (Notable)
Lawrence	United States	Record low minimum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Franklin	United States	Record daily precipitation	48.0 mm (1.9 in)	41 of 100 (Notable)
Logan	United States	Record daily precipitation	56.4 mm (2.2 in)	41 of 100 (Notable)
Ackerman	United States	Record daily precipitation	68.6 mm (2.7 in)	40 of 100 (Notable)
Fremont	United States	Record daily precipitation	66.3 mm (2.6 in)	40 of 100 (Notable)
Yoakum	United States	Record daily precipitation	62.0 mm (2.4 in)	40 of 100 (Notable)
Magdeburg	Germany	Record low minimum temperature	6.3 C (43.3 F)	39 of 100 (Notable)
Tierra Amarilla 4 N	United States	Record daily precipitation	38.6 mm (1.5 in)	39 of 100 (Notable)
Babuskin	Russia	Record daily precipitation	41.3 mm (1.6 in)	37 of 100 (Notable)
Nevada Wtp	United States	Record low minimum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
Mc Intosh 4 NW	United States	Record daily precipitation	41.7 mm (1.6 in)	36 of 100 (Notable)
Beaver	United States	Record low maximum temperature	23.3 C (73.9 F)	36 of 100 (Notable)
Louisville	United States	Record daily precipitation	48.0 mm (1.9 in)	35 of 100 (Notable)
Sedalia Wtp	United States	Record low minimum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Nantahala	United States	Record daily precipitation	65.5 mm (2.6 in)	35 of 100 (Notable)
Tahlequah	United States	Record low minimum temperature	11.1 C (52.0 F)	35 of 100 (Notable)
Vinita 2 N	United States	Record low minimum temperature	10.6 C (51.1 F)	35 of 100 (Notable)
Pierce 1 E	United States	Record low minimum temperature	17.8 C (64.0 F)	35 of 100 (Notable)
Clausthal-Zellerfeld	Germany	Record low minimum temperature	3.5 C (38.3 F)	34 of 100 (Routine)
Greensboro	United States	Record daily precipitation	62.2 mm (2.4 in)	34 of 100 (Routine)
Fredonia	United States	Record low minimum temperature	11.7 C (53.1 F)	34 of 100 (Routine)
Kingston	United States	Record daily precipitation	58.2 mm (2.3 in)	34 of 100 (Routine)
Clearwater	United States	Record high minimum temperature	22.2 C (72.0 F)	34 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record low minimum temperature	7.6 C (45.7 F)	33 of 100 (Routine)
Gorlitz	Germany	Record low minimum temperature	7.7 C (45.9 F)	33 of 100 (Routine)
Castle Rock	United States	Record low maximum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Ashland	United States	Record low minimum temperature	11.7 C (53.1 F)	33 of 100 (Routine)
Columbus	United States	Record low minimum temperature	11.1 C (52.0 F)	33 of 100 (Routine)
Glenville	United States	Record daily precipitation	64.0 mm (2.5 in)	33 of 100 (Routine)
Morgan 1 W	United States	Record high minimum temperature	23.9 C (75.0 F)	32 of 100 (Routine)
Appleton City	United States	Record low minimum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Harrisonville	United States	Record low minimum temperature	11.1 C (52.0 F)	32 of 100 (Routine)
Buffalo 2 SSW	United States	Record low minimum temperature	12.8 C (55.0 F)	32 of 100 (Routine)
Wagoner	United States	Record low minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Plauen	Germany	Record low minimum temperature	4.6 C (40.3 F)	31 of 100 (Routine)
Chemnitz	Germany	Record low minimum temperature	7.2 C (45.0 F)	31 of 100 (Routine)
Jarma	Kazakhstan	Record daily precipitation	26.1 mm (1.0 in)	31 of 100 (Routine)
Rogers	United States	Record low minimum temperature	11.7 C (53.1 F)	31 of 100 (Routine)
Lethbridge Cda	Canada	Record daily precipitation	26.7 mm (1.1 in)	30 of 100 (Routine)
Altastenberg	Germany	Record low minimum temperature	2.9 C (37.2 F)	30 of 100 (Routine)
Zerbst	Germany	Record low minimum temperature	6.6 C (43.9 F)	30 of 100 (Routine)
Gayvoron	Ukraine	Record daily precipitation	28.3 mm (1.1 in)	30 of 100 (Routine)
Gravette	United States	Record low minimum temperature	11.1 C (52.0 F)	30 of 100 (Routine)
Fellsmere 7 SSW	United States	Record high minimum temperature	24.4 C (75.9 F)	30 of 100 (Routine)
Albion	United States	Record low maximum temperature	26.1 C (79.0 F)	30 of 100 (Routine)
Jeffersonville	United States	Record low maximum temperature	26.7 C (80.1 F)	30 of 100 (Routine)
McPherson	United States	Record low minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)
Sedan	United States	Record low minimum temperature	11.1 C (52.0 F)	30 of 100 (Routine)
Andrews	United States	Record daily precipitation	53.3 mm (2.1 in)	30 of 100 (Routine)
Enid	United States	Record low minimum temperature	13.3 C (55.9 F)	30 of 100 (Routine)
Jefferson 3SE	United States	Record low minimum temperature	12.2 C (54.0 F)	30 of 100 (Routine)
Pawhuska	United States	Record low minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)

Counts by Type and Timescale

619 records

Records set or tied on 20 July 1971 by type: Highest daily maximum 36, Lowest daily maximum 130, Highest daily minimum 87, Lowest daily minimum 206, Heaviest daily rainfall 159, Deepest snow cover 1.

Records on 20 July 1971 by type
Record type	Records
Highest daily maximum	36
Lowest daily maximum	130
Highest daily minimum	87
Lowest daily minimum	206
Heaviest daily rainfall	159
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 20 July 1971 by timescale: all-time 0, monthly 1, daily 618.

How Much Records Were Beaten By

484 broken records

Margins by which the 484 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 305.0. Ties are not counted.

Top 20 by Significance

20 July 1971

Top 20 records on 20 July 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1971	Joao Amaro, BR	daily rain	33.0 mm (1.3 in)	24.4 mm (1.0 in)	44 years	59 of 100 (Notable)
20 July 1971	Gatlinburg 2 SW, US	daily rain	112.5 mm (4.4 in)	59.7 mm (2.4 in)	32 years	54 of 100 (Notable)
20 July 1971	Spier Falls, US	daily rain	64.8 mm (2.6 in)	35.3 mm (1.4 in)	68 years	53 of 100 (Notable)
20 July 1971	Krasnyj Chikoj, RU	daily rain	53.5 mm (2.1 in)	37.6 mm (1.5 in)	12 years	48 of 100 (Notable)
20 July 1971	Lake Konomoc, US	daily rain	83.8 mm (3.3 in)	51.0 mm (2.0 in)	8 years	46 of 100 (Notable)
20 July 1971	Kabansk, RU	daily rain	74.8 mm (2.9 in)	54.5 mm (2.1 in)	8 years	45 of 100 (Notable)
20 July 1971	Plymouth-Kingston, US	daily rain	40.6 mm (1.6 in)	21.3 mm (0.8 in)	68 years	44 of 100 (Notable)
20 July 1971	Cluj Napoca, RO	daily rain	44.6 mm (1.8 in)	28.2 mm (1.1 in)	17 years	41 of 100 (Notable)
20 July 1971	Lawrence, US	daily low min	13.3 C (55.9 F)	0.6 C (1.1 F)	101 years	41 of 100 (Notable)
20 July 1971	Franklin, US	daily rain	48.0 mm (1.9 in)	4.8 mm (0.19 in)	94 years	41 of 100 (Notable)
20 July 1971	Logan, US	daily rain	56.4 mm (2.2 in)	34.3 mm (1.4 in)	32 years	41 of 100 (Notable)
20 July 1971	Ackerman, US	daily rain	68.6 mm (2.7 in)	57.9 mm (2.3 in)	14 years	40 of 100 (Notable)
20 July 1971	Fremont, US	daily rain	66.3 mm (2.6 in)	35.8 mm (1.4 in)	36 years	40 of 100 (Notable)
20 July 1971	Yoakum, US	daily rain	62.0 mm (2.4 in)	45.0 mm (1.8 in)	49 years	40 of 100 (Notable)
20 July 1971	Magdeburg, DE	daily low min	6.3 C (43.3 F)	2.8 C (5.0 F)	66 years	39 of 100 (Notable)
20 July 1971	Tierra Amarilla 4 N, US	daily rain	38.6 mm (1.5 in)	24.6 mm (1.0 in)	4 years	39 of 100 (Notable)
20 July 1971	Babuskin, RU	daily rain	41.3 mm (1.6 in)	19.4 mm (0.8 in)	50 years	37 of 100 (Notable)
20 July 1971	Nevada Wtp, US	daily low min	10.0 C (50.0 F)	5.6 C (10.1 F)	41 years	36 of 100 (Notable)
20 July 1971	Mc Intosh 4 NW, US	daily rain	41.7 mm (1.6 in)	16.3 mm (0.6 in)	40 years	36 of 100 (Notable)
20 July 1971	Beaver, US	daily low max	23.3 C (73.9 F)	3.4 C (6.1 F)	70 years	36 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 1971

Records set or tied on this calendar date in each year from 1809 to 1971. 1971 had 619 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 1971-07-20: 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 50	479
50 to 100	4
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	1