Weather Records on 31 August 1979

400 weather records were set or tied worldwide on 31 August 1979. Highest significance: Langdon Exp Farm, US.

Key Facts for 31 August 1979

On 31 August 1979, 400 weather records were set or tied at long-record stations worldwide.
153 were record highs and 75 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 16 monthly and 377 daily.
Langdon Exp Farm set an all-time record daily precipitation of 106.7 mm (4.2 in) on 31 August 1979.
Across 165 earlier years (1796 to 2026) the same calendar date averaged 436 records.

Record Map

400 stations

400 station records on 31 August 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 August 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Langdon Exp Farm	United States	Record daily precipitation	106.7 mm (4.2 in)	72 of 100 (Major)
Kooskia	United States	Record daily precipitation	47.5 mm (1.9 in)	67 of 100 (Major)
Cidra 1 E	Puerto Rico [United States]	Record daily precipitation	382.3 mm (15.1 in)	66 of 100 (Major)
Juncos 1 SE	Puerto Rico [United States]	Record daily precipitation	233.7 mm (9.2 in)	62 of 100 (Major)
Dorado 2 WNW	Puerto Rico [United States]	Record daily precipitation	241.3 mm (9.5 in)	55 of 100 (Notable)
Lajas Substn	Puerto Rico [United States]	Record daily precipitation	154.9 mm (6.1 in)	55 of 100 (Notable)
Utuado	Puerto Rico [United States]	Record daily precipitation	153.7 mm (6.1 in)	55 of 100 (Notable)
Fajardo	Puerto Rico [United States]	Record daily precipitation	116.8 mm (4.6 in)	52 of 100 (Notable)
Paris 3 ESE	United States	Record daily precipitation	67.8 mm (2.7 in)	52 of 100 (Notable)
Okmulgee Wtr Wks	United States	Record daily precipitation	71.1 mm (2.8 in)	50 of 100 (Notable)
Nord-Rana	Norway	Record daily precipitation	34.0 mm (1.3 in)	48 of 100 (Notable)
Maunabo	Puerto Rico [United States]	Record daily precipitation	245.1 mm (9.6 in)	47 of 100 (Notable)
Port Alfred	South Africa	Record daily precipitation	46.5 mm (1.8 in)	45 of 100 (Notable)
Weyburn	Canada	Record daily precipitation	36.5 mm (1.4 in)	43 of 100 (Notable)
Humacao 2 SSE	Puerto Rico [United States]	Record daily precipitation	254.0 mm (10.0 in)	43 of 100 (Notable)
Alberton Post Office	Australia	Record daily precipitation	33.6 mm (1.3 in)	42 of 100 (Notable)
Hostotipaquillo	Mexico	Record low minimum temperature	10.6 C (51.1 F)	42 of 100 (Notable)
Desoto City 8 SW	United States	Record daily precipitation	62.2 mm (2.4 in)	42 of 100 (Notable)
Douglasville 4 S	United States	Record daily precipitation	60.7 mm (2.4 in)	42 of 100 (Notable)
Kyrylivka	Ukraine	Record daily precipitation	36.7 mm (1.4 in)	41 of 100 (Notable)
Corozal Substn	Puerto Rico [United States]	Record daily precipitation	236.0 mm (9.3 in)	40 of 100 (Notable)
Ponce 4 E	Puerto Rico [United States]	Record daily precipitation	204.5 mm (8.1 in)	40 of 100 (Notable)
Meeker 5 W	United States	Record daily precipitation	54.6 mm (2.1 in)	40 of 100 (Notable)
Springfield Exp STN	United States	Record daily precipitation	70.6 mm (2.8 in)	39 of 100 (Notable)
Belya	Russia	Record daily precipitation	40.5 mm (1.6 in)	38 of 100 (Notable)
Frasers	South Africa	Record daily precipitation	46.6 mm (1.8 in)	38 of 100 (Notable)
Amazar	Russia	Record daily precipitation	34.7 mm (1.4 in)	37 of 100 (Notable)
Intl Falls Intl AP	United States	Record daily precipitation	38.1 mm (1.5 in)	37 of 100 (Notable)
Mount Weld	Australia	Record daily precipitation	26.0 mm (1.0 in)	36 of 100 (Notable)
Juana Diaz Camp	Puerto Rico [United States]	Record daily precipitation	226.1 mm (8.9 in)	36 of 100 (Notable)
Rolla 1NE	United States	Record daily precipitation	39.1 mm (1.5 in)	36 of 100 (Notable)
Great Falls	Canada	Record daily precipitation	39.1 mm (1.5 in)	35 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record daily precipitation	76.2 mm (3.0 in)	35 of 100 (Notable)
Tustin Irvine Rch	United States	Record low minimum temperature	6.1 C (43.0 F)	35 of 100 (Notable)
Elk	United States	Record high minimum temperature	13.9 C (57.0 F)	35 of 100 (Notable)
Ponca City Muni AP	United States	Record daily precipitation	65.0 mm (2.6 in)	35 of 100 (Notable)
Reboly	Russia	Record daily precipitation	27.1 mm (1.1 in)	34 of 100 (Routine)
Banff	Canada	Record high minimum temperature	12.4 C (54.3 F)	33 of 100 (Routine)
Luverne	United States	Record high minimum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Vladikavkaz	Russia	Record high maximum temperature	38.0 C (100.4 F)	32 of 100 (Routine)
Hopkinsville	United States	Record daily precipitation	45.7 mm (1.8 in)	32 of 100 (Routine)
Barbers Point NAS	United States	Record high maximum temperature	34.4 C (93.9 F)	32 of 100 (Routine)
Maravatio	Mexico	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Arecibo 3 ESE	Puerto Rico [United States]	Record daily precipitation	134.6 mm (5.3 in)	31 of 100 (Routine)
Ponce 4 E	Puerto Rico [United States]	Record low minimum temperature	20.0 C (68.0 F)	31 of 100 (Routine)
Chara	Russia	Record daily precipitation	38.2 mm (1.5 in)	31 of 100 (Routine)
Hermann	United States	Record daily precipitation	33.0 mm (1.3 in)	31 of 100 (Routine)
Northport	United States	Record high minimum temperature	15.0 C (59.0 F)	31 of 100 (Routine)
Ft Myers Page Fld AP	United States	Record daily precipitation	60.7 mm (2.4 in)	31 of 100 (Routine)
Waialua 847	United States	Record high maximum temperature	33.9 C (93.0 F)	30 of 100 (Routine)
Kaslo	Canada	Record high minimum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Rinconada	Mexico	Record low maximum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Corozal Substn	Puerto Rico [United States]	Record low maximum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Drummond Aviation	United States	Record daily precipitation	30.7 mm (1.2 in)	28 of 100 (Routine)
Lares	Puerto Rico [United States]	Record daily precipitation	104.1 mm (4.1 in)	27 of 100 (Routine)
Utuado	Puerto Rico [United States]	Record low maximum temperature	25.6 C (78.1 F)	27 of 100 (Routine)
Henichesk	Ukraine	Record low maximum temperature	16.3 C (61.3 F)	27 of 100 (Routine)
Anadia	Brazil	Record daily precipitation	29.0 mm (1.1 in)	26 of 100 (Routine)
Lethbridge Cda	Canada	Record high minimum temperature	15.5 C (59.9 F)	26 of 100 (Routine)
Garzas	Puerto Rico [United States]	Record daily precipitation	74.9 mm (2.9 in)	26 of 100 (Routine)

Counts by Type and Timescale

400 records

Records set or tied on 31 August 1979 by type: Highest daily maximum 33, Lowest daily maximum 45, Highest daily minimum 120, Lowest daily minimum 30, Heaviest daily rainfall 171, Heaviest daily snowfall 1.

Records on 31 August 1979 by type
Record type	Records
Highest daily maximum	33
Lowest daily maximum	45
Highest daily minimum	120
Lowest daily minimum	30
Heaviest daily rainfall	171
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 31 August 1979 by timescale: all-time 7, monthly 16, daily 377.

How Much Records Were Beaten By

295 broken records

Margins by which the 295 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 138.4. Ties are not counted.

Top 20 by Significance

31 August 1979

Top 20 records on 31 August 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 1979	Langdon Exp Farm, US	all-time rain	106.7 mm (4.2 in)	18.6 mm (0.7 in)	82 years	72 of 100 (Major)
31 August 1979	Kooskia, US	daily rain	47.5 mm (1.9 in)	33.3 mm (1.3 in)	66 years	67 of 100 (Major)
31 August 1979	Cidra 1 E, PR	all-time rain	382.3 mm (15.1 in)	70.1 mm (2.8 in)	18 years	66 of 100 (Major)
31 August 1979	Juncos 1 SE, PR	monthly rain	233.7 mm (9.2 in)	86.6 mm (3.4 in)	27 years	62 of 100 (Major)
31 August 1979	Dorado 2 WNW, PR	monthly rain	241.3 mm (9.5 in)	105.4 mm (4.1 in)	5 years	55 of 100 (Notable)
31 August 1979	Lajas Substn, PR	daily rain	154.9 mm (6.1 in)	138.4 mm (5.4 in)	24 years	55 of 100 (Notable)
31 August 1979	Utuado, PR	daily rain	153.7 mm (6.1 in)	100.4 mm (4.0 in)	36 years	55 of 100 (Notable)
31 August 1979	Fajardo, PR	daily rain	116.8 mm (4.6 in)	76.9 mm (3.0 in)	26 years	52 of 100 (Notable)
31 August 1979	Paris 3 ESE, US	daily rain	67.8 mm (2.7 in)	60.7 mm (2.4 in)	34 years	52 of 100 (Notable)
31 August 1979	Okmulgee Wtr Wks, US	daily rain	71.1 mm (2.8 in)	57.9 mm (2.3 in)	13 years	50 of 100 (Notable)
31 August 1979	Nord-Rana, NO	daily rain	34.0 mm (1.3 in)	15.0 mm (0.6 in)	60 years	48 of 100 (Notable)
31 August 1979	Maunabo, PR	monthly rain	245.1 mm (9.6 in)	36.8 mm (1.4 in)	34 years	47 of 100 (Notable)
31 August 1979	Port Alfred, ZA	daily rain	46.5 mm (1.8 in)	9.4 mm (0.37 in)	90 years	45 of 100 (Notable)
31 August 1979	Weyburn, CA	daily rain	36.5 mm (1.4 in)	11.1 mm (0.4 in)	77 years	43 of 100 (Notable)
31 August 1979	Humacao 2 SSE, PR	monthly rain	254.0 mm (10.0 in)	41.1 mm (1.6 in)	18 years	43 of 100 (Notable)
31 August 1979	Alberton Post Office, AU	daily rain	33.6 mm (1.3 in)	15.8 mm (0.6 in)	33 years	42 of 100 (Notable)
31 August 1979	Hostotipaquillo, MX	daily low min	10.6 C (51.1 F)	4.4 C (7.9 F)	33 years	42 of 100 (Notable)
31 August 1979	Desoto City 8 SW, US	daily rain	62.2 mm (2.4 in)	40.1 mm (1.6 in)	52 years	42 of 100 (Notable)
31 August 1979	Douglasville 4 S, US	daily rain	60.7 mm (2.4 in)	41.6 mm (1.6 in)	28 years	42 of 100 (Notable)
31 August 1979	Kyrylivka, UA	daily rain	36.7 mm (1.4 in)	25.3 mm (1.0 in)	20 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

1796 to 1979

Records set or tied on this calendar date in each year from 1796 to 1979. 1979 had 400 records.

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

Records on 08-31 in each year
Year	Records
1796	1
1806	1
1807	2
1813	1
1814	1
1816	1
1827	1
1836	1
1846	1
1849	1
1851	1
1856	2
1858	1
1859	1
1860	1
1861	1
1863	1
1867	1
1869	1
1873	1
1875	1
1876	1
1877	2
1879	2
1881	3
1882	2
1885	1
1886	5
1887	1
1889	1
1890	2
1892	3
1893	1
1894	1
1895	1
1896	1
1897	5
1898	10
1899	4
1900	3
1901	5
1902	5
1903	16
1904	13
1905	8
1906	47
1907	6
1908	12
1909	39
1910	20
1911	31
1912	34
1913	40
1914	23
1915	71
1916	7
1917	60
1918	58
1919	25
1920	46
1921	86
1922	58
1923	63
1924	232
1925	111
1926	148
1927	103
1928	201
1929	300
1930	243
1931	192
1932	807
1933	424
1934	381
1935	540
1936	226
1937	508
1938	324
1939	296
1940	400
1941	528
1942	422
1943	650
1944	638
1945	572
1946	545
1947	473
1948	367
1949	409
1950	662
1951	910
1952	388
1953	1,054
1954	633
1955	539
1956	734
1957	317
1958	417
1959	496
1960	366
1961	625
1962	432
1963	415
1964	591
1965	886
1966	830
1967	952
1968	562
1969	474
1970	558
1971	326
1972	287
1973	793
1974	587
1975	658
1976	732
1977	621
1978	891
1979	400
1980	701
1981	692
1982	586
1983	788
1984	866
1985	854
1986	1,218
1987	836
1988	570
1989	622
1990	966
1991	848
1992	1,274
1993	1,286
1994	1,139
1995	1,077
1996	1,451
1997	943
1998	1,163
1999	988
2000	1,545
2001	944
2002	852
2003	1,232
2004	963
2005	1,782
2006	1,147
2007	1,110
2008	870
2009	1,224
2010	1,490
2011	994
2012	932
2013	771
2014	458
2015	1,074
2016	599
2017	596
2018	366
2019	781
2020	737
2021	553
2022	1,191
2023	600
2024	766
2025	307
2026	595

Download the Data

Data for records on 1979-08-31: 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 20	268
20 to 40	15
40 to 60	5
60 to 80	3
80 to 100	1
100 to 120	2
120 to 140	1