Weather Records on 27 July 1978

583 weather records were set or tied worldwide on 27 July 1978. Highest significance: Sao Jose de Piranhas, BR.

Key Facts for 27 July 1978

On 27 July 1978, 583 weather records were set or tied at long-record stations worldwide.
177 were record highs and 151 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 14 monthly and 567 daily.
Sao Jose de Piranhas set a daily record precipitation of 54.3 mm (2.1 in) on 27 July 1978.
Across 162 earlier years (1805 to 2026) the same calendar date averaged 452 records.

Record Map

583 stations

583 station records on 27 July 1978 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 July 1978: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sao Jose de Piranhas	Brazil	Record daily precipitation	54.3 mm (2.1 in)	64 of 100 (Major)
Fairhope 2 NE	United States	Record daily precipitation	106.9 mm (4.2 in)	62 of 100 (Major)
Greenvale	Australia	Record daily precipitation	28.0 mm (1.1 in)	57 of 100 (Notable)
Catarina	Brazil	Record daily precipitation	40.2 mm (1.6 in)	57 of 100 (Notable)
Nova Cruz	Brazil	Record daily precipitation	75.4 mm (3.0 in)	56 of 100 (Notable)
Desoto City 8 SW	United States	Record daily precipitation	100.8 mm (4.0 in)	56 of 100 (Notable)
Sorbytorp	Sweden	Record daily precipitation	48.4 mm (1.9 in)	50 of 100 (Notable)
Sao Jose de Mipibu	Brazil	Record daily precipitation	178.6 mm (7.0 in)	48 of 100 (Notable)
Westfield 2 SSE	United States	Record daily precipitation	34.8 mm (1.4 in)	47 of 100 (Notable)
Araruna	Brazil	Record daily precipitation	75.5 mm (3.0 in)	46 of 100 (Notable)
Troy	United States	Record daily precipitation	81.3 mm (3.2 in)	46 of 100 (Notable)
Fredericksburg	United States	Record daily precipitation	51.3 mm (2.0 in)	46 of 100 (Notable)
Pikan	Russia	Record daily precipitation	63.3 mm (2.5 in)	45 of 100 (Notable)
Levan	United States	Record high minimum temperature	23.9 C (75.0 F)	45 of 100 (Notable)
Hat Creek	United States	Record high minimum temperature	24.4 C (75.9 F)	44 of 100 (Notable)
Tlacotepec de Benito Juarez	Mexico	Record daily precipitation	61.0 mm (2.4 in)	43 of 100 (Notable)
Ouray	United States	Record high minimum temperature	15.0 C (59.0 F)	43 of 100 (Notable)
Ivdel	Russia	Record daily precipitation	38.1 mm (1.5 in)	42 of 100 (Notable)
Deland 1 SSE	United States	Record low minimum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
El Cuije	Mexico	Record daily precipitation	33.8 mm (1.3 in)	41 of 100 (Notable)
Laranjeiras	Brazil	Record daily precipitation	90.0 mm (3.5 in)	40 of 100 (Notable)
Bourke Post Office	Australia	Record low maximum temperature	13.1 C (55.6 F)	39 of 100 (Notable)
Peamiller (Smn)	Mexico	Record daily precipitation	29.7 mm (1.2 in)	39 of 100 (Notable)
Dono	Russia	Record daily precipitation	45.3 mm (1.8 in)	38 of 100 (Notable)
Arcadia	United States	Record daily precipitation	57.9 mm (2.3 in)	38 of 100 (Notable)
Batesville	United States	Record daily precipitation	42.2 mm (1.7 in)	38 of 100 (Notable)
Sao Paulo Do Potengi	Brazil	Record daily precipitation	43.0 mm (1.7 in)	37 of 100 (Notable)
Chipley	United States	Record daily precipitation	63.8 mm (2.5 in)	36 of 100 (Notable)
Raevsky	Russia	Record daily precipitation	28.6 mm (1.1 in)	35 of 100 (Notable)
Pearce - Sunsites	United States	Record daily precipitation	39.6 mm (1.6 in)	35 of 100 (Notable)
Franklinville	United States	Record daily precipitation	29.7 mm (1.2 in)	35 of 100 (Notable)
Dialville 2 W	United States	Record daily precipitation	56.4 mm (2.2 in)	35 of 100 (Notable)
Brooks Ahrc	Canada	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Canon City	United States	Record low minimum temperature	7.8 C (46.0 F)	34 of 100 (Routine)
Kit Carson	United States	Record low minimum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Keithville	United States	Record daily precipitation	71.9 mm (2.8 in)	34 of 100 (Routine)
Steele 4N	United States	Record low minimum temperature	7.2 C (45.0 F)	34 of 100 (Routine)
Junction 4SSW	United States	Record daily precipitation	46.0 mm (1.8 in)	34 of 100 (Routine)
Presidio	United States	Record daily precipitation	29.2 mm (1.1 in)	34 of 100 (Routine)
Borinquen AP	Puerto Rico [United States]	Record low minimum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Golconda River	United States	Record daily precipitation	42.4 mm (1.7 in)	33 of 100 (Routine)
Foxholm 7 N	United States	Record low minimum temperature	5.6 C (42.1 F)	33 of 100 (Routine)
Glens Falls AP	United States	Record daily precipitation	47.5 mm (1.9 in)	33 of 100 (Routine)
Cacequi	Brazil	Record daily precipitation	62.1 mm (2.4 in)	32 of 100 (Routine)
Kurgan	Russia	Record high minimum temperature	19.5 C (67.1 F)	32 of 100 (Routine)
Tygda	Russia	Record daily precipitation	57.5 mm (2.3 in)	32 of 100 (Routine)
Walden	United States	Record high maximum temperature	31.1 C (88.0 F)	32 of 100 (Routine)
Vance 1 SW	United States	Record daily precipitation	73.2 mm (2.9 in)	32 of 100 (Routine)
Areia Branca	Brazil	Record daily precipitation	25.6 mm (1.0 in)	31 of 100 (Routine)
Kananaskis	Canada	Record high minimum temperature	16.1 C (61.0 F)	31 of 100 (Routine)
Mogoca	Russia	Record daily precipitation	25.2 mm (1.0 in)	31 of 100 (Routine)
Skovorodino	Russia	Record daily precipitation	46.6 mm (1.8 in)	31 of 100 (Routine)
Griffiss AFB	United States	Record daily precipitation	49.5 mm (1.9 in)	31 of 100 (Routine)
Albany Intl AP	United States	Record daily precipitation	46.7 mm (1.8 in)	31 of 100 (Routine)
St Ephrem	Canada	Record daily precipitation	36.8 mm (1.4 in)	30 of 100 (Routine)
Chaucingo	Mexico	Record daily precipitation	95.0 mm (3.7 in)	30 of 100 (Routine)
Kursk	Russia	Record low maximum temperature	16.2 C (61.2 F)	30 of 100 (Routine)
Bogoroditskoye-Fenino	Russia	Record low maximum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Taylor	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Blountstown 2 SE	United States	Record low maximum temperature	26.7 C (80.1 F)	30 of 100 (Routine)

Counts by Type and Timescale

583 records

Records set or tied on 27 July 1978 by type: Highest daily maximum 52, Lowest daily maximum 68, Highest daily minimum 125, Lowest daily minimum 83, Heaviest daily rainfall 255.

Records on 27 July 1978 by type
Record type	Records
Highest daily maximum	52
Lowest daily maximum	68
Highest daily minimum	125
Lowest daily minimum	83
Heaviest daily rainfall	255
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 July 1978 by timescale: all-time 2, monthly 14, daily 567.

How Much Records Were Beaten By

459 broken records

Margins by which the 459 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 126.4. Ties are not counted.

Top 20 by Significance

27 July 1978

Top 20 records on 27 July 1978 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 July 1978	Sao Jose de Piranhas, BR	daily rain	54.3 mm (2.1 in)	51.1 mm (2.0 in)	60 years	64 of 100 (Major)
27 July 1978	Fairhope 2 NE, US	daily rain	106.9 mm (4.2 in)	75.7 mm (3.0 in)	55 years	62 of 100 (Major)
27 July 1978	Greenvale, AU	daily rain	28.0 mm (1.1 in)	26.7 mm (1.1 in)	57 years	57 of 100 (Notable)
27 July 1978	Catarina, BR	daily rain	40.2 mm (1.6 in)	40.2 mm (1.6 in)	45 years	57 of 100 (Notable)
27 July 1978	Nova Cruz, BR	daily rain	75.4 mm (3.0 in)	66.2 mm (2.6 in)	37 years	56 of 100 (Notable)
27 July 1978	Desoto City 8 SW, US	daily rain	100.8 mm (4.0 in)	61.9 mm (2.4 in)	49 years	56 of 100 (Notable)
27 July 1978	Sorbytorp, SE	daily rain	48.4 mm (1.9 in)	29.1 mm (1.1 in)	24 years	50 of 100 (Notable)
27 July 1978	Sao Jose de Mipibu, BR	daily rain	178.6 mm (7.0 in)	126.4 mm (5.0 in)	8 years	48 of 100 (Notable)
27 July 1978	Westfield 2 SSE, US	daily rain	34.8 mm (1.4 in)	19.1 mm (0.8 in)	80 years	47 of 100 (Notable)
27 July 1978	Araruna, BR	daily rain	75.5 mm (3.0 in)	63.2 mm (2.5 in)	0 years	46 of 100 (Notable)
27 July 1978	Troy, US	daily rain	81.3 mm (3.2 in)	59.5 mm (2.3 in)	8 years	46 of 100 (Notable)
27 July 1978	Fredericksburg, US	daily rain	51.3 mm (2.0 in)	22.3 mm (0.9 in)	80 years	46 of 100 (Notable)
27 July 1978	Pikan, RU	daily rain	63.3 mm (2.5 in)	39.3 mm (1.5 in)	24 years	45 of 100 (Notable)
27 July 1978	Levan, US	monthly high min	23.9 C (75.0 F)	1.1 C (2.0 F)	82 years	45 of 100 (Notable)
27 July 1978	Hat Creek, US	all-time high min	24.4 C (75.9 F)	1.1 C (2.0 F)	56 years	44 of 100 (Notable)
27 July 1978	Tlacotepec de Benito Juarez, MX	monthly rain	61.0 mm (2.4 in)	18.1 mm (0.7 in)	23 years	43 of 100 (Notable)
27 July 1978	Ouray, US	daily high min	15.0 C (59.0 F)	2.2 C (4.0 F)	82 years	43 of 100 (Notable)
27 July 1978	Ivdel, RU	daily rain	38.1 mm (1.5 in)	22.2 mm (0.9 in)	40 years	42 of 100 (Notable)
27 July 1978	Deland 1 SSE, US	daily low min	16.7 C (62.1 F)	2.2 C (4.0 F)	60 years	42 of 100 (Notable)
27 July 1978	El Cuije, MX	daily rain	33.8 mm (1.3 in)	23.9 mm (0.9 in)	28 years	41 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

1805 to 1978

Records set or tied on this calendar date in each year from 1805 to 1978. 1978 had 583 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 1978-07-27: 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).

Margin	Records
0 to 20	414
20 to 40	33
40 to 60	7
60 to 80	4
80 to 100	0
100 to 120	0
120 to 140	1