Weather Records on 20 May 2008

999 weather records were set or tied worldwide on 20 May 2008. Highest significance: Pesaro, IT.

Key Facts for 20 May 2008

On 20 May 2008, 999 weather records were set or tied at long-record stations worldwide.
683 were record highs and 222 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 40 monthly and 958 daily.
Pesaro set a daily record precipitation of 35.0 mm (1.4 in) on 20 May 2008.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 452 records.

Record Map

999 stations

999 station records on 20 May 2008 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 2008: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pesaro	Italy	Record daily precipitation	35.0 mm (1.4 in)	65 of 100 (Major)
Kremenec	Ukraine	Record daily precipitation	51.0 mm (2.0 in)	57 of 100 (Notable)
Hebron	United States	Record snow depth	48.3 cm (19.0 in)	57 of 100 (Notable)
Roma Ciampino	Italy	Record daily precipitation	59.8 mm (2.4 in)	51 of 100 (Notable)
Palmdale	United States	Record high minimum temperature	31.1 C (88.0 F)	51 of 100 (Notable)
Palpan	Mexico	Record daily precipitation	49.3 mm (1.9 in)	49 of 100 (Notable)
Canby 3 SW	United States	Record daily precipitation	27.9 mm (1.1 in)	49 of 100 (Notable)
Prineville	United States	Record high minimum temperature	13.9 C (57.0 F)	49 of 100 (Notable)
Tokyo	Japan	Record daily precipitation	91.9 mm (3.6 in)	48 of 100 (Notable)
Makaweli 965	United States	Record low maximum temperature	25.6 C (78.1 F)	48 of 100 (Notable)
Bastia	France	Record daily precipitation	39.2 mm (1.5 in)	47 of 100 (Notable)
Nikolskoye/Beringa Ostrov	Russia	Record high maximum temperature	10.0 C (50.0 F)	47 of 100 (Notable)
Ixcamilpa (Cfe)	Mexico	Record low maximum temperature	25.6 C (78.1 F)	46 of 100 (Notable)
San Simon	United States	Record high minimum temperature	20.0 C (68.0 F)	45 of 100 (Notable)
Goldendale	United States	Record high minimum temperature	13.3 C (55.9 F)	45 of 100 (Notable)
Kutchan	Japan	Record daily precipitation	56.1 mm (2.2 in)	44 of 100 (Notable)
Aneityum	Vanuatu	Record daily precipitation	63.0 mm (2.5 in)	44 of 100 (Notable)
Ganado	United States	Record high maximum temperature	36.7 C (98.1 F)	44 of 100 (Notable)
Minden	United States	Record high maximum temperature	36.1 C (97.0 F)	44 of 100 (Notable)
Bosque del Apache	United States	Record high maximum temperature	40.6 C (105.1 F)	43 of 100 (Notable)
Zion Np	United States	Record high minimum temperature	20.0 C (68.0 F)	43 of 100 (Notable)
Wisley	United Kingdom	Record low minimum temperature	-0.4 C (31.3 F)	42 of 100 (Notable)
Jerome	United States	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)
Columbus	United States	Record high minimum temperature	24.4 C (75.9 F)	42 of 100 (Notable)
Kumagaya	Japan	Record daily precipitation	59.9 mm (2.4 in)	41 of 100 (Notable)
Potrerillos	Mexico	Record low minimum temperature	7.2 C (45.0 F)	41 of 100 (Notable)
Bowie	United States	Record high minimum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Richfield Radio Ksvc	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Lake Yellowstone	United States	Record high minimum temperature	5.0 C (41.0 F)	41 of 100 (Notable)
Jesus del Monte	Mexico	Record high minimum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Florence	United States	Record high minimum temperature	31.1 C (88.0 F)	40 of 100 (Notable)
Dyer 5S	United States	Record high maximum temperature	35.6 C (96.1 F)	40 of 100 (Notable)
St George	United States	Record high maximum temperature	39.4 C (102.9 F)	40 of 100 (Notable)
Northam	Australia	Record low minimum temperature	0.5 C (32.9 F)	38 of 100 (Notable)
Izucar de Matamoros (Smn)	Mexico	Record low maximum temperature	22.8 C (73.0 F)	38 of 100 (Notable)
Tenosique (Smn)	Mexico	Record low minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Myakka Rvr Sp	United States	Record daily precipitation	52.8 mm (2.1 in)	38 of 100 (Notable)
McDermitt	United States	Record high maximum temperature	32.2 C (90.0 F)	38 of 100 (Notable)
Pahrump 4 NW	United States	Record high maximum temperature	40.0 C (104.0 F)	38 of 100 (Notable)
Los Alamos	United States	Record high minimum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
Bend	United States	Record high minimum temperature	12.8 C (55.0 F)	38 of 100 (Notable)
Mc Minnville	United States	Record high minimum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Black Rock	United States	Record high maximum temperature	35.6 C (96.1 F)	38 of 100 (Notable)
Ph Wainiha 1115	United States	Record daily precipitation	69.9 mm (2.8 in)	38 of 100 (Notable)
Kawaguchiko	Japan	Record daily precipitation	72.4 mm (2.9 in)	37 of 100 (Notable)
Colonia Santa Ursula Coapa	Mexico	Record daily precipitation	37.8 mm (1.5 in)	37 of 100 (Notable)
Seligman	United States	Record high maximum temperature	34.4 C (93.9 F)	37 of 100 (Notable)
McCloud	United States	Record high maximum temperature	35.0 C (95.0 F)	37 of 100 (Notable)
Sierraville Rs	United States	Record high minimum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Gull Lake Dam	United States	Record low maximum temperature	8.9 C (48.0 F)	37 of 100 (Notable)
Searchlight	United States	Record high maximum temperature	38.3 C (100.9 F)	37 of 100 (Notable)
Bend	United States	Record high maximum temperature	31.1 C (88.0 F)	37 of 100 (Notable)
W Palm Beach Intl AP	United States	Record high maximum temperature	36.1 C (97.0 F)	37 of 100 (Notable)
Imperial Beach Ream Fld NAS	United States	Record high maximum temperature	27.2 C (81.0 F)	37 of 100 (Notable)
Presa Rodriguez	Mexico	Record high minimum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Balcon Diablo	Mexico	Record low maximum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Deming	United States	Record high minimum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Elephant Butte Dam	United States	Record high maximum temperature	37.8 C (100.0 F)	36 of 100 (Notable)
Port Isabel	United States	Record high maximum temperature	34.4 C (93.9 F)	36 of 100 (Notable)
Kanab	United States	Record high maximum temperature	35.0 C (95.0 F)	36 of 100 (Notable)

Counts by Type and Timescale

999 records

Records set or tied on 20 May 2008 by type: Highest daily maximum 388, Lowest daily maximum 125, Highest daily minimum 295, Lowest daily minimum 97, Heaviest daily rainfall 89, Heaviest daily snowfall 1, Deepest snow cover 4.

Records on 20 May 2008 by type
Record type	Records
Highest daily maximum	388
Lowest daily maximum	125
Highest daily minimum	295
Lowest daily minimum	97
Heaviest daily rainfall	89
Heaviest daily snowfall	1
Deepest snow cover	4

Records on 20 May 2008 by timescale: all-time 1, monthly 40, daily 958.

How Much Records Were Beaten By

727 broken records

Margins by which the 727 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 483.0. Ties are not counted.

Top 20 by Significance

20 May 2008

Top 20 records on 20 May 2008 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 2008	Pesaro, IT	daily rain	35.0 mm (1.4 in)	19.6 mm (0.8 in)	130 years	65 of 100 (Major)
20 May 2008	Kremenec, UA	daily rain	51.0 mm (2.0 in)	35.0 mm (1.4 in)	40 years	57 of 100 (Notable)
20 May 2008	Hebron, US	daily snow depth	48.3 cm (19.0 in)	48.3 cm (19.0 in)	44 years	57 of 100 (Notable)
20 May 2008	Roma Ciampino, IT	daily rain	59.8 mm (2.4 in)	39.6 mm (1.6 in)	20 years	51 of 100 (Notable)
20 May 2008	Palmdale, US	all-time high min	31.1 C (88.0 F)	0.5 C (0.9 F)	76 years	51 of 100 (Notable)
20 May 2008	Palpan, MX	daily rain	49.3 mm (1.9 in)	21.4 mm (0.8 in)	61 years	49 of 100 (Notable)
20 May 2008	Canby 3 SW, US	daily rain	27.9 mm (1.1 in)	14.2 mm (0.6 in)	55 years	49 of 100 (Notable)
20 May 2008	Prineville, US	daily high min	13.9 C (57.0 F)	3.9 C (7.0 F)	110 years	49 of 100 (Notable)
20 May 2008	Tokyo, JP	daily rain	91.9 mm (3.6 in)	41.3 mm (1.6 in)	51 years	48 of 100 (Notable)
20 May 2008	Makaweli 965, US	daily low max	25.6 C (78.1 F)	1.1 C (2.0 F)	98 years	48 of 100 (Notable)
20 May 2008	Bastia, FR	daily rain	39.2 mm (1.5 in)	19.7 mm (0.8 in)	60 years	47 of 100 (Notable)
20 May 2008	Nikolskoye/Beringa Ostrov, RU	daily high max	10.0 C (50.0 F)	2.0 C (3.6 F)	93 years	47 of 100 (Notable)
20 May 2008	Ixcamilpa (Cfe), MX	daily low max	25.6 C (78.1 F)	6.1 C (11.0 F)	50 years	46 of 100 (Notable)
20 May 2008	San Simon, US	daily high min	20.0 C (68.0 F)	2.2 C (4.0 F)	102 years	45 of 100 (Notable)
20 May 2008	Goldendale, US	daily high min	13.3 C (55.9 F)	2.7 C (4.9 F)	96 years	45 of 100 (Notable)
20 May 2008	Kutchan, JP	daily rain	56.1 mm (2.2 in)	21.4 mm (0.8 in)	51 years	44 of 100 (Notable)
20 May 2008	Aneityum, VU	daily rain	63.0 mm (2.5 in)	36.1 mm (1.4 in)	53 years	44 of 100 (Notable)
20 May 2008	Ganado, US	monthly high max	36.7 C (98.1 F)	2.8 C (5.0 F)	70 years	44 of 100 (Notable)
20 May 2008	Minden, US	daily high max	36.1 C (97.0 F)	4.4 C (7.9 F)	88 years	44 of 100 (Notable)
20 May 2008	Bosque del Apache, US	daily high max	40.6 C (105.1 F)	1.2 C (2.2 F)	107 years	43 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 2008

Records set or tied on this calendar date in each year from 1802 to 2008. 2008 had 999 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 2008-05-20: 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 100	725
100 to 200	0
200 to 300	1
300 to 400	0
400 to 500	1