Weather Records on 20 May 2023

1,106 weather records were set or tied worldwide on 20 May 2023. Highest significance: Podor, SN.

Key Facts for 20 May 2023

On 20 May 2023, 1,106 weather records were set or tied at long-record stations worldwide.
914 were record highs and 75 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 1,094 daily.
Podor set a monthly record daily precipitation of 90.9 mm (3.6 in) on 20 May 2023.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 452 records.

Record Map

1,106 stations

1,106 station records on 20 May 2023 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 2023: highest significance records shown on the map
Station	Country	Type	Value	Significance
Podor	Senegal	Record daily precipitation	90.9 mm (3.6 in)	82 of 100 (Exceptional)
Prescott	United States	Record daily precipitation	37.1 mm (1.5 in)	79 of 100 (Major)
Walnut Grove	United States	Record daily precipitation	53.3 mm (2.1 in)	70 of 100 (Major)
Providence	United States	Record daily precipitation	76.7 mm (3.0 in)	62 of 100 (Major)
Bedford Hanscom Fld	United States	Record daily precipitation	48.0 mm (1.9 in)	57 of 100 (Notable)
Brownsville	United States	Record daily precipitation	104.6 mm (4.1 in)	54 of 100 (Notable)
Portland Jetport	United States	Record daily precipitation	54.9 mm (2.2 in)	53 of 100 (Notable)
Bosque del Apache	United States	Record daily precipitation	51.1 mm (2.0 in)	51 of 100 (Notable)
Kermanshah	Iran	Record daily precipitation	40.4 mm (1.6 in)	48 of 100 (Notable)
Spokane Intl AP	United States	Record high minimum temperature	16.7 C (62.1 F)	47 of 100 (Notable)
Atmore	United States	Record daily precipitation	89.7 mm (3.5 in)	46 of 100 (Notable)
Imlay	United States	Record high minimum temperature	15.6 C (60.1 F)	46 of 100 (Notable)
Manchester AP	United States	Record daily precipitation	42.4 mm (1.7 in)	46 of 100 (Notable)
Hatton 9 SE	United States	Record high minimum temperature	17.8 C (64.0 F)	45 of 100 (Notable)
Buena Vista 2S	United States	Record daily precipitation	25.4 mm (1.0 in)	44 of 100 (Notable)
Hartford-Bradley Intl AP	United States	Record daily precipitation	53.8 mm (2.1 in)	44 of 100 (Notable)
Antelope 6 SSW	United States	Record high minimum temperature	12.8 C (55.0 F)	43 of 100 (Notable)
Hatton 9 SE	United States	Record high maximum temperature	35.0 C (95.0 F)	43 of 100 (Notable)
Shoals 8 S	United States	Record daily precipitation	32.8 mm (1.3 in)	42 of 100 (Notable)
Selinsgrove 2 S	United States	Record low minimum temperature	0.6 C (33.1 F)	42 of 100 (Notable)
Dayton 1 WSW	United States	Record high minimum temperature	15.6 C (60.1 F)	42 of 100 (Notable)
Spokane Intl AP	United States	Record high maximum temperature	32.2 C (90.0 F)	42 of 100 (Notable)
Moro	United States	Record high maximum temperature	33.3 C (91.9 F)	41 of 100 (Notable)
Mt Adams Rs	United States	Record high minimum temperature	12.8 C (55.0 F)	41 of 100 (Notable)
Bellefontaine	United States	Record daily precipitation	25.7 mm (1.0 in)	40 of 100 (Notable)
Kennewick	United States	Record high maximum temperature	35.0 C (95.0 F)	40 of 100 (Notable)
Ritzville 1 SSE	United States	Record high minimum temperature	13.9 C (57.0 F)	40 of 100 (Notable)
Stehekin 4 NW	United States	Record high maximum temperature	31.1 C (88.0 F)	40 of 100 (Notable)
Koloko Rsvr 1137	United States	Record daily precipitation	73.4 mm (2.9 in)	40 of 100 (Notable)
Winthrop 1 WSW	United States	Record high maximum temperature	31.7 C (89.1 F)	39 of 100 (Notable)
Dayton 1 WSW	United States	Record high maximum temperature	32.2 C (90.0 F)	38 of 100 (Notable)
Boston	United States	Record daily precipitation	46.5 mm (1.8 in)	38 of 100 (Notable)
Mullan Pass Vor/Dme	United States	Record high minimum temperature	12.8 C (55.0 F)	38 of 100 (Notable)
Igor I Sikorsky Mem AP	United States	Record daily precipitation	59.4 mm (2.3 in)	38 of 100 (Notable)
Milton Freewater	United States	Record high maximum temperature	33.3 C (91.9 F)	37 of 100 (Notable)
Chelan	United States	Record high maximum temperature	33.3 C (91.9 F)	37 of 100 (Notable)
Augusta State AP	United States	Record daily precipitation	40.9 mm (1.6 in)	37 of 100 (Notable)
Pendleton	United States	Record high minimum temperature	16.7 C (62.1 F)	37 of 100 (Notable)
Worcester	United States	Record daily precipitation	38.6 mm (1.5 in)	37 of 100 (Notable)
Torino/Bric Croce	Italy	Record daily precipitation	49.0 mm (1.9 in)	36 of 100 (Notable)
Stornoway Airport	United Kingdom	Record high minimum temperature	10.7 C (51.3 F)	36 of 100 (Notable)
Moses Lake Grant Co AP	United States	Record high minimum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Orovada 3 W	United States	Record high maximum temperature	35.0 C (95.0 F)	34 of 100 (Routine)
Richland	United States	Record high minimum temperature	18.3 C (64.9 F)	34 of 100 (Routine)
Hondo Muni AP	United States	Record daily precipitation	59.4 mm (2.3 in)	34 of 100 (Routine)
Mullan Pass Vor/Dme	United States	Record high maximum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Yakima AP	United States	Record high maximum temperature	34.4 C (93.9 F)	34 of 100 (Routine)
Annaba	Algeria	Record daily precipitation	85.1 mm (3.4 in)	33 of 100 (Routine)
N Foster 1 E	United States	Record daily precipitation	46.2 mm (1.8 in)	33 of 100 (Routine)
Nadi Airport	Fiji	Record daily precipitation	90.4 mm (3.6 in)	32 of 100 (Routine)
Irkutsk	Russia	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Priest Rvr Exp STN	United States	Record high maximum temperature	31.1 C (88.0 F)	32 of 100 (Routine)
Grizzly	United States	Record high minimum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Lind 3 NE	United States	Record high maximum temperature	34.4 C (93.9 F)	32 of 100 (Routine)
Reno AP	United States	Record high maximum temperature	32.2 C (90.0 F)	32 of 100 (Routine)
China Lake Naf	United States	Record high minimum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Henshaw Dam	United States	Record high minimum temperature	11.7 C (53.1 F)	31 of 100 (Routine)
Moscow U of I	United States	Record high maximum temperature	31.1 C (88.0 F)	31 of 100 (Routine)
Wallace	United States	Record high maximum temperature	31.1 C (88.0 F)	31 of 100 (Routine)
Leesville	United States	Record high maximum temperature	34.4 C (93.9 F)	31 of 100 (Routine)

Counts by Type and Timescale

1,106 records

Records set or tied on 20 May 2023 by type: Highest daily maximum 465, Lowest daily maximum 31, Highest daily minimum 449, Lowest daily minimum 44, Heaviest daily rainfall 117.

Records on 20 May 2023 by type
Record type	Records
Highest daily maximum	465
Lowest daily maximum	31
Highest daily minimum	449
Lowest daily minimum	44
Heaviest daily rainfall	117
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 May 2023 by timescale: all-time 0, monthly 12, daily 1,094.

How Much Records Were Beaten By

969 broken records

Margins by which the 969 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 70.3. Ties are not counted.

Top 20 by Significance

20 May 2023

Top 20 records on 20 May 2023 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 2023	Podor, SN	monthly rain	90.9 mm (3.6 in)	36.9 mm (1.5 in)	86 years	82 of 100 (Exceptional)
20 May 2023	Prescott, US	daily rain	37.1 mm (1.5 in)	22.4 mm (0.9 in)	105 years	79 of 100 (Major)
20 May 2023	Walnut Grove, US	monthly rain	53.3 mm (2.1 in)	13.9 mm (0.5 in)	88 years	70 of 100 (Major)
20 May 2023	Providence, US	daily rain	76.7 mm (3.0 in)	44.7 mm (1.8 in)	50 years	62 of 100 (Major)
20 May 2023	Bedford Hanscom Fld, US	daily rain	48.0 mm (1.9 in)	26.2 mm (1.0 in)	73 years	57 of 100 (Notable)
20 May 2023	Brownsville, US	daily rain	104.6 mm (4.1 in)	70.3 mm (2.8 in)	32 years	54 of 100 (Notable)
20 May 2023	Portland Jetport, US	daily rain	54.9 mm (2.2 in)	27.5 mm (1.1 in)	65 years	53 of 100 (Notable)
20 May 2023	Bosque del Apache, US	monthly rain	51.1 mm (2.0 in)	7.2 mm (0.28 in)	65 years	51 of 100 (Notable)
20 May 2023	Kermanshah, IR	daily rain	40.4 mm (1.6 in)	35.3 mm (1.4 in)	25 years	48 of 100 (Notable)
20 May 2023	Spokane Intl AP, US	daily high min	16.7 C (62.1 F)	2.8 C (5.0 F)	125 years	47 of 100 (Notable)
20 May 2023	Atmore, US	daily rain	89.7 mm (3.5 in)	35.3 mm (1.4 in)	76 years	46 of 100 (Notable)
20 May 2023	Imlay, US	daily high min	15.6 C (60.1 F)	2.8 C (5.0 F)	100 years	46 of 100 (Notable)
20 May 2023	Manchester AP, US	daily rain	42.4 mm (1.7 in)	18.5 mm (0.7 in)	73 years	46 of 100 (Notable)
20 May 2023	Hatton 9 SE, US	daily high min	17.8 C (64.0 F)	2.8 C (5.0 F)	97 years	45 of 100 (Notable)
20 May 2023	Buena Vista 2S, US	daily rain	25.4 mm (1.0 in)	15.0 mm (0.6 in)	37 years	44 of 100 (Notable)
20 May 2023	Hartford-Bradley Intl AP, US	daily rain	53.8 mm (2.1 in)	17.5 mm (0.7 in)	73 years	44 of 100 (Notable)
20 May 2023	Antelope 6 SSW, US	daily high min	12.8 C (55.0 F)	1.7 C (3.1 F)	97 years	43 of 100 (Notable)
20 May 2023	Hatton 9 SE, US	daily high max	35.0 C (95.0 F)	2.8 C (5.0 F)	94 years	43 of 100 (Notable)
20 May 2023	Shoals 8 S, US	daily rain	32.8 mm (1.3 in)	4.4 mm (0.17 in)	98 years	42 of 100 (Notable)
20 May 2023	Selinsgrove 2 S, US	daily low min	0.6 C (33.1 F)	1.1 C (2.0 F)	108 years	42 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 2023

Records set or tied on this calendar date in each year from 1802 to 2023. 2023 had 1,106 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 2023-05-20: 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	934
10 to 20	17
20 to 30	10
30 to 40	5
40 to 50	2
50 to 60	0
60 to 70	0
70 to 80	1