Weather Records on 20 October 1979

1,647 weather records were set or tied worldwide on 20 October 1979. Highest significance: Yetman (Warialda Street), AU.

Key Facts for 20 October 1979

On 20 October 1979, 1,647 weather records were set or tied at long-record stations worldwide.
1,005 were record highs and 85 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 50 monthly and 1,596 daily.
Yetman (Warialda Street) set a daily record precipitation of 57.2 mm (2.3 in) on 20 October 1979.
Across 160 earlier years (1806 to 2025) the same calendar date averaged 450 records.

Record Map

1,647 stations

1,647 station records on 20 October 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 October 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Yetman (Warialda Street)	Australia	Record daily precipitation	57.2 mm (2.3 in)	70 of 100 (Major)
Weemelah (Crinolyn)	Australia	Record daily precipitation	116.6 mm (4.6 in)	63 of 100 (Major)
Snake Creek Powerhouse	United States	Record daily snowfall	15.7 cm (6.2 in)	63 of 100 (Major)
Mt Wilson Cbs	United States	Record daily precipitation	94.0 mm (3.7 in)	61 of 100 (Major)
Tooele	United States	Record daily precipitation	39.1 mm (1.5 in)	61 of 100 (Major)
Spanish Fk Pwr House	United States	Record daily precipitation	64.5 mm (2.5 in)	60 of 100 (Major)
Eureka	United States	Record daily precipitation	46.0 mm (1.8 in)	57 of 100 (Notable)
Deseret	United States	Record daily precipitation	32.5 mm (1.3 in)	55 of 100 (Notable)
Elberta	United States	Record daily precipitation	43.4 mm (1.7 in)	53 of 100 (Notable)
Heber	United States	Record daily snowfall	12.7 cm (5.0 in)	53 of 100 (Notable)
Santaquin Chlorinator	United States	Record daily precipitation	54.9 mm (2.2 in)	53 of 100 (Notable)
Delta	United States	Record daily precipitation	31.8 mm (1.3 in)	52 of 100 (Notable)
Bengalla	Australia	Record daily precipitation	125.0 mm (4.9 in)	51 of 100 (Notable)
Garah (Bengerang)	Australia	Record daily precipitation	54.8 mm (2.2 in)	51 of 100 (Notable)
Scipio	United States	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
San Bernardino F S 226	United States	Record daily precipitation	58.7 mm (2.3 in)	50 of 100 (Notable)
Hayden	United States	Record daily snowfall	17.8 cm (7.0 in)	50 of 100 (Notable)
Hayden	United States	Record snow depth	15.2 cm (6.0 in)	50 of 100 (Notable)
Sage 4 NNW	United States	Record daily precipitation	26.4 mm (1.0 in)	50 of 100 (Notable)
Croppa Creek (Krui Plains)	Australia	Record daily precipitation	55.6 mm (2.2 in)	49 of 100 (Notable)
Hetch Hetchy	United States	Record daily precipitation	55.1 mm (2.2 in)	49 of 100 (Notable)
San Dimas Fire Fc 95	United States	Record daily precipitation	34.3 mm (1.4 in)	49 of 100 (Notable)
San Gabriel Dam Fc425B-E	United States	Record daily precipitation	47.0 mm (1.9 in)	49 of 100 (Notable)
Encampment 10 ESE	United States	Record daily snowfall	25.4 cm (10.0 in)	49 of 100 (Notable)
Korsakov	Russia	Record daily precipitation	38.7 mm (1.5 in)	48 of 100 (Notable)
Wisconsin Rapids	United States	Record daily precipitation	39.4 mm (1.6 in)	48 of 100 (Notable)
Mungindi (Wilgabah)	Australia	Record daily precipitation	68.0 mm (2.7 in)	47 of 100 (Notable)
Oak City	United States	Record daily precipitation	34.8 mm (1.4 in)	47 of 100 (Notable)
La Crescenta Fc251 C	United States	Record daily precipitation	38.6 mm (1.5 in)	46 of 100 (Notable)
Bowbells	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
Beaver Canyon Pwr House	United States	Record daily snowfall	15.2 cm (6.0 in)	46 of 100 (Notable)
Walgett Council Depot	Australia	Record daily precipitation	43.2 mm (1.7 in)	45 of 100 (Notable)
Dolinsk	Russia	Record daily precipitation	57.1 mm (2.2 in)	45 of 100 (Notable)
Altadena	United States	Record daily precipitation	33.8 mm (1.3 in)	44 of 100 (Notable)
Pomona/Fairplex	United States	Record daily precipitation	28.7 mm (1.1 in)	44 of 100 (Notable)
Chama	United States	Record high minimum temperature	7.8 C (46.0 F)	44 of 100 (Notable)
Silver Lake Brighton	United States	Record daily precipitation	53.3 mm (2.1 in)	44 of 100 (Notable)
Morgantown Muni AP	United States	Record high minimum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Goondiwindi Post Office	Australia	Record daily precipitation	42.2 mm (1.7 in)	43 of 100 (Notable)
Brockville	Canada	Record high minimum temperature	14.5 C (58.1 F)	43 of 100 (Notable)
La Mesa	United States	Record daily precipitation	30.0 mm (1.2 in)	43 of 100 (Notable)
Encampment 10 ESE	United States	Record daily precipitation	26.7 mm (1.1 in)	43 of 100 (Notable)
Bungunya School	Australia	Record daily precipitation	42.0 mm (1.7 in)	42 of 100 (Notable)
Cambridge Galt Moe	Canada	Record high minimum temperature	14.5 C (58.1 F)	42 of 100 (Notable)
Redickville	Canada	Record daily precipitation	44.1 mm (1.7 in)	42 of 100 (Notable)
Bancroft	Canada	Record high minimum temperature	10.5 C (50.9 F)	42 of 100 (Notable)
Claremont Pomona Clg	United States	Record daily precipitation	34.8 mm (1.4 in)	42 of 100 (Notable)
Richfield Radio Ksvc	United States	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Evanston 1 E	United States	Record daily snowfall	17.8 cm (7.0 in)	42 of 100 (Notable)
Gradule	Australia	Record daily precipitation	57.0 mm (2.2 in)	41 of 100 (Notable)
Woodstock	Canada	Record high minimum temperature	14.0 C (57.2 F)	41 of 100 (Notable)
Zwartrandjes	South Africa	Record daily precipitation	35.0 mm (1.4 in)	41 of 100 (Notable)
Big Dalton Dam Fc223C	United States	Record daily precipitation	46.5 mm (1.8 in)	41 of 100 (Notable)
Idyllwild Fire Dept	United States	Record daily precipitation	60.2 mm (2.4 in)	41 of 100 (Notable)
Beaumont #2	United States	Record daily precipitation	43.4 mm (1.7 in)	41 of 100 (Notable)
Grantsville 2W	United States	Record daily precipitation	36.3 mm (1.4 in)	40 of 100 (Notable)
Van Reenen	South Africa	Record daily precipitation	45.0 mm (1.8 in)	39 of 100 (Notable)
Carrollton	United States	Record high minimum temperature	20.0 C (68.0 F)	39 of 100 (Notable)
Heber	United States	Record daily precipitation	43.9 mm (1.7 in)	39 of 100 (Notable)
Ibapah	United States	Record daily precipitation	26.7 mm (1.1 in)	39 of 100 (Notable)

Counts by Type and Timescale

1,647 records

Records set or tied on 20 October 1979 by type: Highest daily maximum 279, Lowest daily maximum 66, Highest daily minimum 726, Lowest daily minimum 19, Heaviest daily rainfall 489, Heaviest daily snowfall 49, Deepest snow cover 19.

Records on 20 October 1979 by type
Record type	Records
Highest daily maximum	279
Lowest daily maximum	66
Highest daily minimum	726
Lowest daily minimum	19
Heaviest daily rainfall	489
Heaviest daily snowfall	49
Deepest snow cover	19

Records on 20 October 1979 by timescale: all-time 1, monthly 50, daily 1,596.

How Much Records Were Beaten By

1,360 broken records

Margins by which the 1,360 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 229.0. Ties are not counted.

Top 20 by Significance

20 October 1979

Top 20 records on 20 October 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 1979	Yetman (Warialda Street), AU	daily rain	57.2 mm (2.3 in)	37.1 mm (1.5 in)	88 years	70 of 100 (Major)
20 October 1979	Weemelah (Crinolyn), AU	monthly rain	116.6 mm (4.6 in)	44.0 mm (1.7 in)	25 years	63 of 100 (Major)
20 October 1979	Snake Creek Powerhouse, US	daily snowfall	15.7 cm (6.2 in)	15.7 cm (6.2 in)	64 years	63 of 100 (Major)
20 October 1979	Mt Wilson Cbs, US	monthly rain	94.0 mm (3.7 in)	49.0 mm (1.9 in)	27 years	61 of 100 (Major)
20 October 1979	Tooele, US	daily rain	39.1 mm (1.5 in)	26.4 mm (1.0 in)	72 years	61 of 100 (Major)
20 October 1979	Spanish Fk Pwr House, US	monthly rain	64.5 mm (2.5 in)	29.4 mm (1.2 in)	13 years	60 of 100 (Major)
20 October 1979	Eureka, US	daily rain	46.0 mm (1.8 in)	32.0 mm (1.3 in)	42 years	57 of 100 (Notable)
20 October 1979	Deseret, US	daily rain	32.5 mm (1.3 in)	23.4 mm (0.9 in)	25 years	55 of 100 (Notable)
20 October 1979	Elberta, US	monthly rain	43.4 mm (1.7 in)	11.1 mm (0.4 in)	59 years	53 of 100 (Notable)
20 October 1979	Heber, US	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	72 years	53 of 100 (Notable)
20 October 1979	Santaquin Chlorinator, US	daily rain	54.9 mm (2.2 in)	42.5 mm (1.7 in)	25 years	53 of 100 (Notable)
20 October 1979	Delta, US	daily rain	31.8 mm (1.3 in)	22.7 mm (0.9 in)	37 years	52 of 100 (Notable)
20 October 1979	Bengalla, AU	monthly rain	125.0 mm (4.9 in)	39.1 mm (1.5 in)	25 years	51 of 100 (Notable)
20 October 1979	Garah (Bengerang), AU	daily rain	54.8 mm (2.2 in)	40.1 mm (1.6 in)	24 years	51 of 100 (Notable)
20 October 1979	Scipio, US	daily rain	30.0 mm (1.2 in)	21.4 mm (0.8 in)	37 years	51 of 100 (Notable)
20 October 1979	San Bernardino F S 226, US	monthly rain	58.7 mm (2.3 in)	7.1 mm (0.28 in)	82 years	50 of 100 (Notable)
20 October 1979	Hayden, US	daily snowfall	17.8 cm (7.0 in)	12.7 cm (5.0 in)	58 years	50 of 100 (Notable)
20 October 1979	Hayden, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	65 years	50 of 100 (Notable)
20 October 1979	Sage 4 NNW, US	daily rain	26.4 mm (1.0 in)	20.6 mm (0.8 in)	29 years	50 of 100 (Notable)
20 October 1979	Croppa Creek (Krui Plains), AU	daily rain	55.6 mm (2.2 in)	40.9 mm (1.6 in)	12 years	49 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

1806 to 1979

Records set or tied on this calendar date in each year from 1806 to 1979. 1979 had 1,647 records.

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

Records on 10-20 in each year
Year	Records
1806	1
1835	1
1844	1
1846	1
1847	2
1851	1
1852	1
1858	1
1863	2
1864	2
1866	3
1867	1
1868	2
1872	2
1874	2
1875	3
1876	2
1877	1
1878	1
1880	3
1881	2
1884	1
1885	1
1886	1
1887	1
1888	6
1891	4
1892	4
1893	1
1894	3
1895	4
1896	9
1897	2
1898	7
1899	1
1900	8
1901	7
1902	5
1903	9
1904	13
1905	22
1906	28
1907	32
1908	26
1909	17
1910	31
1911	16
1912	6
1913	38
1914	16
1915	20
1916	72
1917	201
1918	34
1919	19
1920	81
1921	68
1922	83
1923	96
1924	182
1925	247
1926	147
1927	283
1928	92
1929	129
1930	672
1931	125
1932	331
1933	675
1934	422
1935	390
1936	370
1937	189
1938	231
1939	367
1940	757
1941	459
1942	152
1943	501
1944	288
1945	363
1946	310
1947	1,494
1948	320
1949	1,084
1950	619
1951	279
1952	520
1953	1,057
1954	262
1955	529
1956	283
1957	440
1958	461
1959	451
1960	671
1961	479
1962	733
1963	765
1964	598
1965	340
1966	857
1967	511
1968	244
1969	607
1970	710
1971	606
1972	1,724
1973	878
1974	1,122
1975	587
1976	1,304
1977	467
1978	508
1979	1,647
1980	350
1981	1,083
1982	1,191
1983	944
1984	1,562
1985	835
1986	823
1987	590
1988	737
1989	2,092
1990	609
1991	971
1992	1,174
1993	1,238
1994	650
1995	703
1996	1,417
1997	949
1998	683
1999	603
2000	737
2001	589
2002	985
2003	1,761
2004	1,861
2005	1,092
2006	1,170
2007	923
2008	477
2009	786
2010	539
2011	785
2012	945
2013	592
2014	851
2015	523
2016	947
2017	602
2018	394
2019	744
2020	1,010
2021	900
2022	834
2023	1,468
2024	707
2025	326

Download the Data

Data for records on 1979-10-20: 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	1,323
50 to 100	26
100 to 150	7
150 to 200	3
200 to 250	1