Weather Records on 20 October 2004

1,861 weather records were set or tied worldwide on 20 October 2004. Highest significance: Paso Robles, US.

Key Facts for 20 October 2004

On 20 October 2004, 1,861 weather records were set or tied at long-record stations worldwide.
1,002 were record highs and 146 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 141 monthly and 1,717 daily.
Paso Robles set a monthly record daily precipitation of 69.1 mm (2.7 in) on 20 October 2004.
Across 160 earlier years (1806 to 2025) the same calendar date averaged 448 records.

Record Map

1,861 stations

1,861 station records on 20 October 2004 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 October 2004: highest significance records shown on the map
Station	Country	Type	Value	Significance
Paso Robles	United States	Record daily precipitation	69.1 mm (2.7 in)	89 of 100 (Exceptional)
Pasadena	United States	Record daily precipitation	130.6 mm (5.1 in)	81 of 100 (Exceptional)
Harrington (Oxley Anchorage Ca	Australia	Record daily precipitation	103.0 mm (4.1 in)	79 of 100 (Major)
Taree (Radio Station 2Re)	Australia	Record daily precipitation	132.2 mm (5.2 in)	77 of 100 (Major)
Woolgoolga (Clear Place)	Australia	Record daily precipitation	107.4 mm (4.2 in)	75 of 100 (Major)
Julian Cdf	United States	Record daily precipitation	74.9 mm (2.9 in)	75 of 100 (Major)
Greenville	United States	Record daily precipitation	95.3 mm (3.8 in)	69 of 100 (Major)
Bulahdelah Post Office	Australia	Record daily precipitation	92.0 mm (3.6 in)	68 of 100 (Major)
Palomar Mtn Obsy	United States	Record daily precipitation	157.5 mm (6.2 in)	68 of 100 (Major)
W Pt	United States	Record daily precipitation	84.3 mm (3.3 in)	68 of 100 (Major)
Nelson Bay (Nelson Head)	Australia	Record daily precipitation	72.0 mm (2.8 in)	66 of 100 (Major)
Fairmont	United States	Record daily precipitation	65.0 mm (2.6 in)	64 of 100 (Major)
Palmdale	United States	Record daily precipitation	41.1 mm (1.6 in)	64 of 100 (Major)
Rosedale Post Office	Australia	Record daily precipitation	67.6 mm (2.7 in)	63 of 100 (Major)
Guntersville	United States	Record daily precipitation	82.0 mm (3.2 in)	63 of 100 (Major)
Wallace 2 E	United States	Record daily precipitation	124.7 mm (4.9 in)	63 of 100 (Major)
Lake Arrowhead	United States	Record daily precipitation	238.8 mm (9.4 in)	63 of 100 (Major)
Minersville	United States	Record daily precipitation	35.6 mm (1.4 in)	63 of 100 (Major)
Richmond	United States	Record daily precipitation	40.6 mm (1.6 in)	63 of 100 (Major)
Kangaroo Creek (Hayfield)	Australia	Record daily precipitation	89.0 mm (3.5 in)	62 of 100 (Major)
Upper Orara (Aurania)	Australia	Record daily precipitation	121.6 mm (4.8 in)	62 of 100 (Major)
Long Flat Post Office	Australia	Record daily precipitation	91.0 mm (3.6 in)	62 of 100 (Major)
Riverside Citrus Exp	United States	Record daily precipitation	49.8 mm (2.0 in)	62 of 100 (Major)
Big Bear Lake	United States	Record daily precipitation	82.6 mm (3.3 in)	61 of 100 (Major)
La Crescenta Fc251 C	United States	Record daily precipitation	130.3 mm (5.1 in)	61 of 100 (Major)
Whittier City Yard Fc106C	United States	Record daily precipitation	75.2 mm (3.0 in)	61 of 100 (Major)
St George	United States	Record daily precipitation	41.7 mm (1.6 in)	61 of 100 (Major)
Raglan	Australia	Record daily precipitation	86.0 mm (3.4 in)	60 of 100 (Major)
Thumb Creek (Figtree)	Australia	Record daily precipitation	158.6 mm (6.2 in)	60 of 100 (Major)
Okayama	Japan	Record daily precipitation	70.1 mm (2.8 in)	60 of 100 (Major)
Himeji	Japan	Record daily precipitation	99.1 mm (3.9 in)	60 of 100 (Major)
Sumoto	Japan	Record daily precipitation	309.9 mm (12.2 in)	60 of 100 (Major)
Makurazaki	Japan	Record daily precipitation	133.1 mm (5.2 in)	60 of 100 (Major)
Boquilla Santa Rosa de la Mis	Mexico	Record daily precipitation	79.8 mm (3.1 in)	60 of 100 (Major)
Bodie California St Historic P	United States	Record snow depth	40.6 cm (16.0 in)	60 of 100 (Major)
Santa Ana Fire STN	United States	Record daily precipitation	80.0 mm (3.1 in)	60 of 100 (Major)
Bowraville (Cow Cownty)	Australia	Record daily precipitation	141.0 mm (5.6 in)	59 of 100 (Notable)
Leigh (Rolling Acres)	Australia	Record daily precipitation	216.0 mm (8.5 in)	59 of 100 (Notable)
Bulby Brush (Blue Look-Out)	Australia	Record daily precipitation	144.0 mm (5.7 in)	59 of 100 (Notable)
Randsburg	United States	Record daily precipitation	31.0 mm (1.2 in)	59 of 100 (Notable)
Redlands	United States	Record daily precipitation	69.9 mm (2.8 in)	59 of 100 (Notable)
Ebor (the Racecourse)	Australia	Record daily precipitation	95.0 mm (3.7 in)	58 of 100 (Notable)
Hitoyoshi	Japan	Record daily precipitation	87.9 mm (3.5 in)	58 of 100 (Notable)
Taipak	Kazakhstan	Record daily precipitation	31.7 mm (1.2 in)	58 of 100 (Notable)
El Mirage	United States	Record daily precipitation	27.4 mm (1.1 in)	58 of 100 (Notable)
Poway Valley	United States	Record daily precipitation	38.1 mm (1.5 in)	58 of 100 (Notable)
New Harmony	United States	Record daily precipitation	69.3 mm (2.7 in)	58 of 100 (Notable)
Lorne (Lorne Road)	Australia	Record daily precipitation	109.0 mm (4.3 in)	57 of 100 (Notable)
Kawaguchiko	Japan	Record daily precipitation	201.9 mm (7.9 in)	57 of 100 (Notable)
Mishima	Japan	Record daily precipitation	143.8 mm (5.7 in)	57 of 100 (Notable)
Ajiro	Japan	Record daily precipitation	204.0 mm (8.0 in)	57 of 100 (Notable)
Tsuyama	Japan	Record daily precipitation	78.0 mm (3.1 in)	57 of 100 (Notable)
San Vicente	Mexico	Record daily precipitation	62.0 mm (2.4 in)	57 of 100 (Notable)
Ojai	United States	Record daily precipitation	58.2 mm (2.3 in)	57 of 100 (Notable)
Truckee Rs	United States	Record daily precipitation	72.9 mm (2.9 in)	57 of 100 (Notable)
Vernon	United States	Record daily precipitation	42.4 mm (1.7 in)	57 of 100 (Notable)
Boca	United States	Record daily precipitation	57.9 mm (2.3 in)	56 of 100 (Notable)
Gloucester Post Office	Australia	Record daily precipitation	121.4 mm (4.8 in)	55 of 100 (Notable)
Gloucester (Upper Bowman)	Australia	Record daily precipitation	103.4 mm (4.1 in)	55 of 100 (Notable)
Miyakonojo	Japan	Record daily precipitation	185.2 mm (7.3 in)	55 of 100 (Notable)

Counts by Type and Timescale

1,861 records

Records set or tied on 20 October 2004 by type: Highest daily maximum 509, Lowest daily maximum 107, Highest daily minimum 493, Lowest daily minimum 39, Heaviest daily rainfall 686, Heaviest daily snowfall 16, Deepest snow cover 11.

Records on 20 October 2004 by type
Record type	Records
Highest daily maximum	509
Lowest daily maximum	107
Highest daily minimum	493
Lowest daily minimum	39
Heaviest daily rainfall	686
Heaviest daily snowfall	16
Deepest snow cover	11

Records on 20 October 2004 by timescale: all-time 3, monthly 141, daily 1,717.

How Much Records Were Beaten By

1,476 broken records

Margins by which the 1,476 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 381.0. Ties are not counted.

Top 20 by Significance

20 October 2004

Top 20 records on 20 October 2004 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 2004	Paso Robles, US	monthly rain	69.1 mm (2.7 in)	26.9 mm (1.1 in)	107 years	89 of 100 (Exceptional)
20 October 2004	Pasadena, US	monthly rain	130.6 mm (5.1 in)	47.8 mm (1.9 in)	70 years	81 of 100 (Exceptional)
20 October 2004	Harrington (Oxley Anchorage Ca, AU	daily rain	103.0 mm (4.1 in)	49.7 mm (2.0 in)	109 years	79 of 100 (Major)
20 October 2004	Taree (Radio Station 2Re), AU	daily rain	132.2 mm (5.2 in)	47.4 mm (1.9 in)	109 years	77 of 100 (Major)
20 October 2004	Woolgoolga (Clear Place), AU	daily rain	107.4 mm (4.2 in)	54.8 mm (2.2 in)	109 years	75 of 100 (Major)
20 October 2004	Julian Cdf, US	daily rain	74.9 mm (2.9 in)	71.1 mm (2.8 in)	86 years	75 of 100 (Major)
20 October 2004	Greenville, US	daily rain	95.3 mm (3.8 in)	62.5 mm (2.5 in)	89 years	69 of 100 (Major)
20 October 2004	Bulahdelah Post Office, AU	daily rain	92.0 mm (3.6 in)	44.8 mm (1.8 in)	90 years	68 of 100 (Major)
20 October 2004	Palomar Mtn Obsy, US	monthly rain	157.5 mm (6.2 in)	64.5 mm (2.5 in)	29 years	68 of 100 (Major)
20 October 2004	W Pt, US	daily rain	84.3 mm (3.3 in)	40.9 mm (1.6 in)	104 years	68 of 100 (Major)
20 October 2004	Nelson Bay (Nelson Head), AU	daily rain	72.0 mm (2.8 in)	29.1 mm (1.1 in)	114 years	66 of 100 (Major)
20 October 2004	Fairmont, US	monthly rain	65.0 mm (2.6 in)	18.0 mm (0.7 in)	70 years	64 of 100 (Major)
20 October 2004	Palmdale, US	daily rain	41.1 mm (1.6 in)	33.7 mm (1.3 in)	47 years	64 of 100 (Major)
20 October 2004	Rosedale Post Office, AU	daily rain	67.6 mm (2.7 in)	53.4 mm (2.1 in)	89 years	63 of 100 (Major)
20 October 2004	Guntersville, US	daily rain	82.0 mm (3.2 in)	44.4 mm (1.7 in)	86 years	63 of 100 (Major)
20 October 2004	Wallace 2 E, US	daily rain	124.7 mm (4.9 in)	109.5 mm (4.3 in)	57 years	63 of 100 (Major)
20 October 2004	Lake Arrowhead, US	monthly rain	238.8 mm (9.4 in)	128.8 mm (5.1 in)	25 years	63 of 100 (Major)
20 October 2004	Minersville, US	daily rain	35.6 mm (1.4 in)	24.9 mm (1.0 in)	63 years	63 of 100 (Major)
20 October 2004	Richmond, US	daily rain	40.6 mm (1.6 in)	27.9 mm (1.1 in)	61 years	63 of 100 (Major)
20 October 2004	Kangaroo Creek (Hayfield), AU	daily rain	89.0 mm (3.5 in)	56.7 mm (2.2 in)	54 years	62 of 100 (Major)

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 2004

Records set or tied on this calendar date in each year from 1806 to 2004. 2004 had 1,861 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 2004-10-20: 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	1,392
50 to 100	60
100 to 150	11
150 to 200	8
200 to 250	4
250 to 300	0
300 to 350	0
350 to 400	1