Weather Records on 20 May 2005

929 weather records were set or tied worldwide on 20 May 2005. Highest significance: Cape May 2 NW, US.

Key Facts for 20 May 2005

On 20 May 2005, 929 weather records were set or tied at long-record stations worldwide.
545 were record highs and 114 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 32 monthly and 895 daily.
Cape May 2 NW set a daily record precipitation of 82.8 mm (3.3 in) on 20 May 2005.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 453 records.

Record Map

929 stations

929 station records on 20 May 2005 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 2005: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cape May 2 NW	United States	Record daily precipitation	82.8 mm (3.3 in)	65 of 100 (Major)
Leitchfield 2 N	United States	Record daily precipitation	76.2 mm (3.0 in)	63 of 100 (Major)
Lewes	United States	Record daily precipitation	94.2 mm (3.7 in)	60 of 100 (Major)
Princess Anne	United States	Record daily precipitation	73.7 mm (2.9 in)	60 of 100 (Major)
Waynesville 1 E	United States	Record daily precipitation	73.2 mm (2.9 in)	59 of 100 (Notable)
Louisville McAlpine	United States	Record daily precipitation	94.2 mm (3.7 in)	57 of 100 (Notable)
Dover	United States	Record daily precipitation	82.6 mm (3.3 in)	56 of 100 (Notable)
Washington Reagan Natl AP	United States	Record daily precipitation	66.8 mm (2.6 in)	56 of 100 (Notable)
Mestad I Oddernes	Norway	Record daily precipitation	44.9 mm (1.8 in)	53 of 100 (Notable)
Bjornholt	Norway	Record daily precipitation	40.0 mm (1.6 in)	53 of 100 (Notable)
Taylorsville 2SW	United States	Record daily precipitation	58.4 mm (2.3 in)	53 of 100 (Notable)
Salisbury	United States	Record daily precipitation	103.6 mm (4.1 in)	53 of 100 (Notable)
Tryvasshogda	Norway	Record daily precipitation	35.4 mm (1.4 in)	52 of 100 (Notable)
Nashville 2 NNE	United States	Record daily precipitation	118.1 mm (4.6 in)	51 of 100 (Notable)
Tapoco	United States	Record daily precipitation	75.2 mm (3.0 in)	51 of 100 (Notable)
Oak Ridge Atdd	United States	Record daily precipitation	80.0 mm (3.1 in)	51 of 100 (Notable)
Cave Run Lake	United States	Record daily precipitation	37.1 mm (1.5 in)	50 of 100 (Notable)
Philo 3 SW	United States	Record daily precipitation	39.9 mm (1.6 in)	50 of 100 (Notable)
Elkins- Randolph Co AP	United States	Record daily precipitation	53.1 mm (2.1 in)	50 of 100 (Notable)
Sandefjord	Norway	Record daily precipitation	36.0 mm (1.4 in)	49 of 100 (Notable)
Indio Fire STN	United States	Record high minimum temperature	31.1 C (88.0 F)	49 of 100 (Notable)
Bloomington Indiana UNIV	United States	Record daily precipitation	43.2 mm (1.7 in)	49 of 100 (Notable)
Shepherdsville 5NE	United States	Record daily precipitation	74.2 mm (2.9 in)	49 of 100 (Notable)
Middlebourne 3 ESE	United States	Record daily precipitation	54.6 mm (2.1 in)	49 of 100 (Notable)
Hedrum	Norway	Record daily precipitation	39.5 mm (1.6 in)	48 of 100 (Notable)
Barren Rvr Lake	United States	Record daily precipitation	102.9 mm (4.1 in)	48 of 100 (Notable)
Hopkinsville	United States	Record daily precipitation	50.3 mm (2.0 in)	48 of 100 (Notable)
Elkin	United States	Record daily precipitation	65.0 mm (2.6 in)	48 of 100 (Notable)
Toowong Bowls Club	Australia	Record daily precipitation	61.0 mm (2.4 in)	47 of 100 (Notable)
Nelaug	Norway	Record daily precipitation	40.9 mm (1.6 in)	47 of 100 (Notable)
Oolitic Purdue Ex Fm	United States	Record daily precipitation	45.7 mm (1.8 in)	47 of 100 (Notable)
Salisbury-Wicomico Rgnl AP	United States	Record daily precipitation	97.3 mm (3.8 in)	46 of 100 (Notable)
Troicko-Pecherskoe	Russia	Record high minimum temperature	14.1 C (57.4 F)	45 of 100 (Notable)
Clay	United States	Record daily precipitation	46.2 mm (1.8 in)	45 of 100 (Notable)
Baltimore-Washington Intl AP	United States	Record daily precipitation	50.0 mm (2.0 in)	45 of 100 (Notable)
Ukkestad	Norway	Record daily precipitation	25.8 mm (1.0 in)	44 of 100 (Notable)
Elliston	United States	Record daily precipitation	56.6 mm (2.2 in)	44 of 100 (Notable)
Arendal Brannstasjon	Norway	Record daily precipitation	42.0 mm (1.7 in)	43 of 100 (Notable)
Mechanicsville 5 NE	United States	Record daily precipitation	36.6 mm (1.4 in)	43 of 100 (Notable)
Portland	United States	Record high maximum temperature	37.2 C (99.0 F)	42 of 100 (Notable)
Springfield 2W	United States	Record daily precipitation	41.1 mm (1.6 in)	42 of 100 (Notable)
Newark Wtr Wks	United States	Record daily precipitation	43.7 mm (1.7 in)	42 of 100 (Notable)
Rison	United States	Record high maximum temperature	35.6 C (96.1 F)	41 of 100 (Notable)
Charleston	United States	Record daily precipitation	32.3 mm (1.3 in)	41 of 100 (Notable)
Mays Landing 1 W	United States	Record daily precipitation	50.5 mm (2.0 in)	41 of 100 (Notable)
Chama	United States	Record high maximum temperature	27.8 C (82.0 F)	41 of 100 (Notable)
Elwha Rs	United States	Record daily precipitation	29.2 mm (1.1 in)	41 of 100 (Notable)
Mungar Junction	Australia	Record daily precipitation	40.8 mm (1.6 in)	40 of 100 (Notable)
Lifjell	Norway	Record daily precipitation	30.1 mm (1.2 in)	40 of 100 (Notable)
Natural Brg	United States	Record high minimum temperature	20.0 C (68.0 F)	40 of 100 (Notable)
Saint Johns	United States	Record high maximum temperature	35.6 C (96.1 F)	40 of 100 (Notable)
Laurel 3 W	United States	Record daily precipitation	49.3 mm (1.9 in)	40 of 100 (Notable)
Snow Hill 4 N	United States	Record daily precipitation	80.0 mm (3.1 in)	40 of 100 (Notable)
Baise	China	Record daily precipitation	101.8 mm (4.0 in)	39 of 100 (Notable)
Caruthersville	United States	Record high minimum temperature	22.2 C (72.0 F)	39 of 100 (Notable)
Luna Rs	United States	Record high maximum temperature	32.2 C (90.0 F)	39 of 100 (Notable)
Aberdeen Phillips Fld	United States	Record daily precipitation	46.0 mm (1.8 in)	39 of 100 (Notable)
Alpine	United States	Record high maximum temperature	28.9 C (84.0 F)	38 of 100 (Notable)
Wickenburg	United States	Record high maximum temperature	42.2 C (108.0 F)	38 of 100 (Notable)
Bluff	United States	Record high maximum temperature	36.7 C (98.1 F)	38 of 100 (Notable)

Counts by Type and Timescale

929 records

Records set or tied on 20 May 2005 by type: Highest daily maximum 387, Lowest daily maximum 43, Highest daily minimum 158, Lowest daily minimum 71, Heaviest daily rainfall 270.

Records on 20 May 2005 by type
Record type	Records
Highest daily maximum	387
Lowest daily maximum	43
Highest daily minimum	158
Lowest daily minimum	71
Heaviest daily rainfall	270
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 May 2005 by timescale: all-time 2, monthly 32, daily 895.

How Much Records Were Beaten By

738 broken records

Margins by which the 738 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 73.6. Ties are not counted.

Top 20 by Significance

20 May 2005

Top 20 records on 20 May 2005 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 2005	Cape May 2 NW, US	daily rain	82.8 mm (3.3 in)	47.5 mm (1.9 in)	52 years	65 of 100 (Major)
20 May 2005	Leitchfield 2 N, US	daily rain	76.2 mm (3.0 in)	41.9 mm (1.6 in)	70 years	63 of 100 (Major)
20 May 2005	Lewes, US	daily rain	94.2 mm (3.7 in)	66.3 mm (2.6 in)	47 years	60 of 100 (Major)
20 May 2005	Princess Anne, US	monthly rain	73.7 mm (2.9 in)	12.5 mm (0.5 in)	98 years	60 of 100 (Major)
20 May 2005	Waynesville 1 E, US	daily rain	73.2 mm (2.9 in)	22.9 mm (0.9 in)	96 years	59 of 100 (Notable)
20 May 2005	Louisville McAlpine, US	daily rain	94.2 mm (3.7 in)	64.2 mm (2.5 in)	42 years	57 of 100 (Notable)
20 May 2005	Dover, US	daily rain	82.6 mm (3.3 in)	39.4 mm (1.6 in)	52 years	56 of 100 (Notable)
20 May 2005	Washington Reagan Natl AP, US	daily rain	66.8 mm (2.6 in)	49.0 mm (1.9 in)	34 years	56 of 100 (Notable)
20 May 2005	Mestad I Oddernes, NO	daily rain	44.9 mm (1.8 in)	17.7 mm (0.7 in)	82 years	53 of 100 (Notable)
20 May 2005	Bjornholt, NO	daily rain	40.0 mm (1.6 in)	10.6 mm (0.4 in)	117 years	53 of 100 (Notable)
20 May 2005	Taylorsville 2SW, US	daily rain	58.4 mm (2.3 in)	16.5 mm (0.6 in)	103 years	53 of 100 (Notable)
20 May 2005	Salisbury, US	monthly rain	103.6 mm (4.1 in)	17.2 mm (0.7 in)	57 years	53 of 100 (Notable)
20 May 2005	Tryvasshogda, NO	daily rain	35.4 mm (1.4 in)	20.4 mm (0.8 in)	52 years	52 of 100 (Notable)
20 May 2005	Nashville 2 NNE, US	daily rain	118.1 mm (4.6 in)	73.6 mm (2.9 in)	7 years	51 of 100 (Notable)
20 May 2005	Tapoco, US	daily rain	75.2 mm (3.0 in)	32.5 mm (1.3 in)	63 years	51 of 100 (Notable)
20 May 2005	Oak Ridge Atdd, US	daily rain	80.0 mm (3.1 in)	54.1 mm (2.1 in)	22 years	51 of 100 (Notable)
20 May 2005	Cave Run Lake, US	daily rain	37.1 mm (1.5 in)	18.0 mm (0.7 in)	80 years	50 of 100 (Notable)
20 May 2005	Philo 3 SW, US	daily rain	39.9 mm (1.6 in)	12.7 mm (0.5 in)	90 years	50 of 100 (Notable)
20 May 2005	Elkins- Randolph Co AP, US	daily rain	53.1 mm (2.1 in)	17.5 mm (0.7 in)	74 years	50 of 100 (Notable)
20 May 2005	Sandefjord, NO	daily rain	36.0 mm (1.4 in)	20.0 mm (0.8 in)	39 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

1802 to 2005

Records set or tied on this calendar date in each year from 1802 to 2005. 2005 had 929 records.

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

Records on 05-20 in each year
Year	Records
1802	1
1803	1
1804	1
1815	1
1825	1
1837	1
1844	1
1845	3
1847	1
1854	1
1858	3
1861	1
1862	1
1865	1
1867	1
1868	2
1870	3
1871	2
1876	2
1877	3
1879	1
1880	2
1884	2
1885	1
1887	2
1889	3
1890	3
1891	5
1892	3
1893	1
1894	6
1895	3
1896	3
1897	3
1898	4
1899	4
1900	1
1901	5
1902	11
1903	19
1904	4
1905	4
1906	22
1907	35
1908	23
1909	10
1910	20
1911	82
1912	20
1913	10
1914	16
1915	42
1916	29
1917	46
1918	92
1919	56
1920	44
1921	234
1922	40
1923	125
1924	189
1925	251
1926	128
1927	118
1928	138
1929	323
1930	129
1931	451
1932	689
1933	449
1934	582
1935	259
1936	207
1937	270
1938	331
1939	266
1940	337
1941	378
1942	337
1943	802
1944	315
1945	498
1946	339
1947	358
1948	514
1949	586
1950	327
1951	288
1952	615
1953	518
1954	822
1955	421
1956	565
1957	728
1958	378
1959	785
1960	612
1961	333
1962	773
1963	732
1964	517
1965	200
1966	416
1967	587
1968	743
1969	885
1970	310
1971	653
1972	612
1973	419
1974	893
1975	1,332
1976	837
1977	553
1978	534
1979	683
1980	751
1981	1,540
1982	554
1983	1,307
1984	867
1985	426
1986	790
1987	1,036
1988	805
1989	764
1990	722
1991	925
1992	1,200
1993	1,208
1994	778
1995	734
1996	1,749
1997	1,106
1998	1,124
1999	673
2000	991
2001	847
2002	2,299
2003	1,201
2004	746
2005	929
2006	1,006
2007	565
2008	999
2009	1,529
2010	1,011
2011	1,117
2012	604
2013	919
2014	629
2015	1,001
2016	692
2017	1,214
2018	460
2019	1,483
2020	784
2021	904
2022	1,643
2023	1,106
2024	478
2025	969
2026	696

Download the Data

Data for records on 2005-05-20: 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 10	626
10 to 20	66
20 to 30	27
30 to 40	8
40 to 50	5
50 to 60	2
60 to 70	2
70 to 80	2