Weather Records on 27 July 1970

379 weather records were set or tied worldwide on 27 July 1970. Highest significance: Rockingham Post Office, AU.

Key Facts for 27 July 1970

On 27 July 1970, 379 weather records were set or tied at long-record stations worldwide.
109 were record highs and 98 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 370 daily.
Rockingham Post Office set a daily record precipitation of 76.7 mm (3.0 in) on 27 July 1970.
Across 162 earlier years (1805 to 2026) the same calendar date averaged 453 records.

Record Map

379 stations

379 station records on 27 July 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 July 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rockingham Post Office	Australia	Record daily precipitation	76.7 mm (3.0 in)	54 of 100 (Notable)
Bella Coola	Canada	Record daily precipitation	40.1 mm (1.6 in)	54 of 100 (Notable)
Potlatch 3 NNE	United States	Record daily precipitation	29.2 mm (1.1 in)	53 of 100 (Notable)
Grand Marais	United States	Record daily precipitation	82.3 mm (3.2 in)	52 of 100 (Notable)
Darby	United States	Record daily precipitation	33.3 mm (1.3 in)	50 of 100 (Notable)
Magdalena	United States	Record low minimum temperature	5.0 C (41.0 F)	48 of 100 (Notable)
Elliston	United States	Record daily precipitation	47.0 mm (1.9 in)	45 of 100 (Notable)
Aparan	Armenia	Record daily precipitation	36.8 mm (1.4 in)	42 of 100 (Notable)
Barsi	India	Record daily precipitation	84.0 mm (3.3 in)	42 of 100 (Notable)
Voznesensk	Ukraine	Record daily precipitation	36.2 mm (1.4 in)	42 of 100 (Notable)
Williams 3 SW	United States	Record daily precipitation	61.0 mm (2.4 in)	41 of 100 (Notable)
Miller	United States	Record daily precipitation	42.7 mm (1.7 in)	41 of 100 (Notable)
Narsapur	India	Record daily precipitation	78.7 mm (3.1 in)	40 of 100 (Notable)
Belya	Russia	Record daily precipitation	34.0 mm (1.3 in)	40 of 100 (Notable)
Newberry	United States	Record daily precipitation	53.3 mm (2.1 in)	38 of 100 (Notable)
Presa la Angostura	Mexico	Record daily precipitation	95.0 mm (3.7 in)	37 of 100 (Notable)
Sathenapalli	India	Record daily precipitation	47.4 mm (1.9 in)	35 of 100 (Notable)
Shnoh	Armenia	Record daily precipitation	25.9 mm (1.0 in)	34 of 100 (Routine)
Eagle	United States	Record low minimum temperature	-1.7 C (28.9 F)	34 of 100 (Routine)
Gladwin	United States	Record daily precipitation	46.5 mm (1.8 in)	34 of 100 (Routine)
Holbrook	United States	Record high minimum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
La Rue	United States	Record daily precipitation	57.9 mm (2.3 in)	33 of 100 (Routine)
Chesterfield	Canada	Record daily precipitation	36.3 mm (1.4 in)	32 of 100 (Routine)
Gurjala(Gurujala)	India	Record daily precipitation	42.0 mm (1.7 in)	32 of 100 (Routine)
Tarboro 1 S	United States	Record high minimum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Ikej	Russia	Record daily precipitation	43.5 mm (1.7 in)	31 of 100 (Routine)
Shoals 8 S	United States	Record daily precipitation	34.0 mm (1.3 in)	31 of 100 (Routine)
Mahbubnagar	India	Record daily precipitation	33.5 mm (1.3 in)	30 of 100 (Routine)
Cordele	United States	Record daily precipitation	63.8 mm (2.5 in)	30 of 100 (Routine)
Douglas	United States	Record low maximum temperature	27.8 C (82.0 F)	30 of 100 (Routine)
Kokomo 3 WSW	United States	Record low maximum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Vevay	United States	Record daily precipitation	25.4 mm (1.0 in)	29 of 100 (Routine)
Marathon	United States	Record low maximum temperature	24.4 C (75.9 F)	29 of 100 (Routine)
Elk Point	Canada	Record low maximum temperature	14.4 C (57.9 F)	28 of 100 (Routine)
Danville	United States	Record daily precipitation	48.8 mm (1.9 in)	28 of 100 (Routine)
Guerrero (Smn)	Mexico	Record daily precipitation	47.5 mm (1.9 in)	27 of 100 (Routine)
Namiquipa	Mexico	Record high maximum temperature	35.0 C (95.0 F)	27 of 100 (Routine)
Benson	United States	Record high minimum temperature	25.6 C (78.1 F)	27 of 100 (Routine)
Hollister 1 SW	United States	Record low minimum temperature	5.6 C (42.1 F)	27 of 100 (Routine)
Begumpet Obsy	India	Record daily precipitation	40.8 mm (1.6 in)	26 of 100 (Routine)
Tulun	Russia	Record daily precipitation	34.4 mm (1.4 in)	26 of 100 (Routine)
Henderson 8 SSW	United States	Record daily precipitation	40.6 mm (1.6 in)	26 of 100 (Routine)
Headworks Portland Wtr B	United States	Record low maximum temperature	16.7 C (62.1 F)	26 of 100 (Routine)
Canguaretama	Brazil	Record daily precipitation	28.6 mm (1.1 in)	25 of 100 (Routine)
Wara	India	Record daily precipitation	92.7 mm (3.6 in)	25 of 100 (Routine)
Utuado	Puerto Rico [United States]	Record high minimum temperature	21.7 C (71.1 F)	25 of 100 (Routine)
Northwood	United States	Record daily precipitation	44.5 mm (1.8 in)	25 of 100 (Routine)
Florida	United States	Record daily precipitation	33.5 mm (1.3 in)	25 of 100 (Routine)
Puyallup 2 W Exp STN	United States	Record low maximum temperature	18.3 C (64.9 F)	25 of 100 (Routine)
Lambton	Canada	Record high minimum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Nemuro	Japan	Record high minimum temperature	19.6 C (67.3 F)	24 of 100 (Routine)
Atoyac (Smn)	Mexico	Record low minimum temperature	21.7 C (71.1 F)	24 of 100 (Routine)
Estacada 2 SE	United States	Record low maximum temperature	16.7 C (62.1 F)	24 of 100 (Routine)
Bonham 3NNE	United States	Record low minimum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Elberta	United States	Record low minimum temperature	10.0 C (50.0 F)	24 of 100 (Routine)
La Estanzuela (Eele)	Uruguay	Record daily precipitation	53.0 mm (2.1 in)	24 of 100 (Routine)
Titimathi	India	Record daily precipitation	90.7 mm (3.6 in)	23 of 100 (Routine)
Tajshet	Russia	Record daily precipitation	40.5 mm (1.6 in)	23 of 100 (Routine)
Danville	United States	Record daily precipitation	39.4 mm (1.6 in)	23 of 100 (Routine)
Orono	United States	Record high maximum temperature	33.3 C (91.9 F)	23 of 100 (Routine)

Counts by Type and Timescale

379 records

Records set or tied on 27 July 1970 by type: Highest daily maximum 34, Lowest daily maximum 58, Highest daily minimum 75, Lowest daily minimum 40, Heaviest daily rainfall 172.

Records on 27 July 1970 by type
Record type	Records
Highest daily maximum	34
Lowest daily maximum	58
Highest daily minimum	75
Lowest daily minimum	40
Heaviest daily rainfall	172
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 July 1970 by timescale: all-time 0, monthly 9, daily 370.

How Much Records Were Beaten By

293 broken records

Margins by which the 293 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 42.2. Ties are not counted.

Top 20 by Significance

27 July 1970

Top 20 records on 27 July 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 July 1970	Rockingham Post Office, AU	daily rain	76.7 mm (3.0 in)	39.9 mm (1.6 in)	24 years	54 of 100 (Notable)
27 July 1970	Bella Coola, CA	daily rain	40.1 mm (1.6 in)	29.7 mm (1.2 in)	24 years	54 of 100 (Notable)
27 July 1970	Potlatch 3 NNE, US	daily rain	29.2 mm (1.1 in)	24.9 mm (1.0 in)	29 years	53 of 100 (Notable)
27 July 1970	Grand Marais, US	monthly rain	82.3 mm (3.2 in)	23.1 mm (0.9 in)	37 years	52 of 100 (Notable)
27 July 1970	Darby, US	monthly rain	33.3 mm (1.3 in)	9.7 mm (0.38 in)	23 years	50 of 100 (Notable)
27 July 1970	Magdalena, US	daily low min	5.0 C (41.0 F)	6.1 C (11.0 F)	61 years	48 of 100 (Notable)
27 July 1970	Elliston, US	daily rain	47.0 mm (1.9 in)	33.8 mm (1.3 in)	37 years	45 of 100 (Notable)
27 July 1970	Aparan, AM	daily rain	36.8 mm (1.4 in)	27.3 mm (1.1 in)	33 years	42 of 100 (Notable)
27 July 1970	Barsi, IN	daily rain	84.0 mm (3.3 in)	40.3 mm (1.6 in)	13 years	42 of 100 (Notable)
27 July 1970	Voznesensk, UA	daily rain	36.2 mm (1.4 in)	33.7 mm (1.3 in)	17 years	42 of 100 (Notable)
27 July 1970	Williams 3 SW, US	daily rain	61.0 mm (2.4 in)	42.2 mm (1.7 in)	25 years	41 of 100 (Notable)
27 July 1970	Miller, US	daily rain	42.7 mm (1.7 in)	23.6 mm (0.9 in)	55 years	41 of 100 (Notable)
27 July 1970	Narsapur, IN	daily rain	78.7 mm (3.1 in)	32.7 mm (1.3 in)	52 years	40 of 100 (Notable)
27 July 1970	Belya, RU	daily rain	34.0 mm (1.3 in)	20.3 mm (0.8 in)	12 years	40 of 100 (Notable)
27 July 1970	Newberry, US	daily rain	53.3 mm (2.1 in)	16.2 mm (0.6 in)	71 years	38 of 100 (Notable)
27 July 1970	Presa la Angostura, MX	monthly rain	95.0 mm (3.7 in)	20.1 mm (0.8 in)	13 years	37 of 100 (Notable)
27 July 1970	Sathenapalli, IN	daily rain	47.4 mm (1.9 in)	20.0 mm (0.8 in)	52 years	35 of 100 (Notable)
27 July 1970	Shnoh, AM	daily rain	25.9 mm (1.0 in)	18.2 mm (0.7 in)	25 years	34 of 100 (Routine)
27 July 1970	Eagle, US	daily low min	-1.7 C (28.9 F)	5.0 C (9.0 F)	48 years	34 of 100 (Routine)
27 July 1970	Gladwin, US	daily rain	46.5 mm (1.8 in)	13.5 mm (0.5 in)	56 years	34 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

1805 to 1970

Records set or tied on this calendar date in each year from 1805 to 1970. 1970 had 379 records.

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

Records on 07-27 in each year
Year	Records
1805	1
1815	2
1820	1
1832	2
1847	1
1852	1
1856	2
1857	2
1862	1
1863	1
1867	2
1868	4
1870	1
1871	1
1872	2
1873	1
1875	1
1876	2
1877	2
1881	2
1882	1
1883	5
1884	2
1886	1
1887	3
1888	3
1889	4
1890	5
1891	1
1893	2
1894	1
1895	2
1896	1
1897	5
1898	2
1899	4
1900	5
1901	11
1902	4
1903	13
1904	13
1905	7
1906	16
1907	14
1908	17
1909	18
1910	7
1911	51
1912	89
1913	43
1914	44
1915	31
1916	143
1917	46
1918	103
1919	86
1920	67
1921	123
1922	95
1923	142
1924	71
1925	234
1926	131
1927	69
1928	222
1929	177
1930	786
1931	429
1932	172
1933	414
1934	471
1935	289
1936	971
1937	407
1938	287
1939	284
1940	632
1941	457
1942	258
1943	326
1944	398
1945	337
1946	680
1947	389
1948	485
1949	418
1950	797
1951	207
1952	476
1953	248
1954	294
1955	521
1956	325
1957	372
1958	491
1959	395
1960	385
1961	277
1962	1,009
1963	584
1964	335
1965	434
1966	594
1967	559
1968	391
1969	588
1970	379
1971	1,083
1972	790
1973	751
1974	403
1975	588
1976	426
1977	878
1978	583
1979	749
1980	760
1981	1,233
1982	584
1983	1,455
1984	1,613
1985	571
1986	836
1987	1,108
1988	936
1989	1,103
1990	846
1991	763
1992	791
1993	1,317
1994	1,851
1995	1,192
1996	950
1997	1,173
1998	1,363
1999	820
2000	1,019
2001	1,265
2002	816
2003	1,064
2004	1,552
2005	1,743
2006	1,321
2007	904
2008	784
2009	829
2010	1,330
2011	1,007
2012	823
2013	1,110
2014	591
2015	744
2016	564
2017	460
2018	737
2019	597
2020	842
2021	1,131
2022	855
2023	826
2024	646
2025	853
2026	1,170

Download the Data

Data for records on 1970-07-27: 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).

Histogram of margins by which records were beaten on 27 July 1970
Margin	Records
0 to 10	244
10 to 20	30
20 to 30	11
30 to 40	6
40 to 50	2