Weather Records on 20 August 2023

1,479 weather records were set or tied worldwide on 20 August 2023. Highest significance: China Lake Naf, US.

Key Facts for 20 August 2023

On 20 August 2023, 1,479 weather records were set or tied at long-record stations worldwide.
963 were record highs and 250 were record lows, counting maximum and minimum temperature.
By timescale, 25 were all-time records, 93 monthly and 1,361 daily.
China Lake Naf set an all-time record daily precipitation of 110.0 mm (4.3 in) on 20 August 2023.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 448 records.

Record Map

1,479 stations

1,479 station records on 20 August 2023 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 2023: highest significance records shown on the map
Station	Country	Type	Value	Significance
China Lake Naf	United States	Record daily precipitation	110.0 mm (4.3 in)	91 of 100 (Exceptional)
Tonopah AP	United States	Record daily precipitation	64.8 mm (2.6 in)	80 of 100 (Exceptional)
Megri	Armenia	Record daily precipitation	99.1 mm (3.9 in)	79 of 100 (Major)
Avalon Catalina AP	United States	Record daily precipitation	102.6 mm (4.0 in)	78 of 100 (Major)
Pasadena	United States	Record daily precipitation	30.5 mm (1.2 in)	77 of 100 (Major)
Torrance AP	United States	Record daily precipitation	41.4 mm (1.6 in)	76 of 100 (Major)
Camarillo AP	United States	Record daily precipitation	55.4 mm (2.2 in)	75 of 100 (Major)
Santa Ana Fire STN	United States	Record daily precipitation	25.9 mm (1.0 in)	73 of 100 (Major)
Palmdale AP	United States	Record daily precipitation	99.8 mm (3.9 in)	73 of 100 (Major)
Hilts Creek	United States	Record daily precipitation	106.7 mm (4.2 in)	72 of 100 (Major)
Los Angeles Intl AP	United States	Record daily precipitation	51.6 mm (2.0 in)	71 of 100 (Major)
Culver City	United States	Record daily precipitation	35.8 mm (1.4 in)	69 of 100 (Major)
Woodland Hills Pierce College	United States	Record daily precipitation	51.1 mm (2.0 in)	69 of 100 (Major)
Sandberg	United States	Record daily precipitation	117.3 mm (4.6 in)	68 of 100 (Major)
Dollarhide Summit	United States	Record daily precipitation	55.9 mm (2.2 in)	65 of 100 (Major)
Pearblossom	United States	Record daily precipitation	105.9 mm (4.2 in)	63 of 100 (Major)
U C L A	United States	Record daily precipitation	35.6 mm (1.4 in)	63 of 100 (Major)
Palm Springs	United States	Record daily precipitation	67.1 mm (2.6 in)	61 of 100 (Major)
Palomar Mtn Obsy	United States	Record daily precipitation	87.6 mm (3.4 in)	61 of 100 (Major)
Moonshine	United States	Record daily precipitation	48.3 mm (1.9 in)	61 of 100 (Major)
Burbank Valley Pump Plt	United States	Record daily precipitation	108.0 mm (4.3 in)	60 of 100 (Major)
Indio Fire STN	United States	Record low maximum temperature	27.8 C (82.0 F)	60 of 100 (Major)
Bishop AP	United States	Record daily precipitation	43.7 mm (1.7 in)	60 of 100 (Major)
Vista	United States	Record daily precipitation	30.0 mm (1.2 in)	59 of 100 (Notable)
Verhoture	Russia	Record daily precipitation	99.1 mm (3.9 in)	58 of 100 (Notable)
Billie Creek Divide	United States	Record daily precipitation	35.6 mm (1.4 in)	58 of 100 (Notable)
Nizhnyaya Pesha	Russia	Record daily precipitation	29.0 mm (1.1 in)	57 of 100 (Notable)
Elsinore	United States	Record daily precipitation	36.8 mm (1.4 in)	57 of 100 (Notable)
Oceanside Marina	United States	Record daily precipitation	36.3 mm (1.4 in)	57 of 100 (Notable)
Lower Twin	United States	Record daily precipitation	38.1 mm (1.5 in)	56 of 100 (Notable)
Meadow Lake	United States	Record daily precipitation	40.6 mm (1.6 in)	56 of 100 (Notable)
Swede Peak	United States	Record daily precipitation	53.3 mm (2.1 in)	56 of 100 (Notable)
Palmdale	United States	Record daily precipitation	89.2 mm (3.5 in)	55 of 100 (Notable)
Twentynine Palms	United States	Record daily precipitation	39.6 mm (1.6 in)	55 of 100 (Notable)
Dorsey Basin	United States	Record daily precipitation	35.6 mm (1.4 in)	55 of 100 (Notable)
Julian Cdf	United States	Record daily precipitation	73.7 mm (2.9 in)	54 of 100 (Notable)
Corral Canyon	United States	Record daily precipitation	48.3 mm (1.9 in)	54 of 100 (Notable)
Mt Charleston Fire STN	United States	Record daily precipitation	66.5 mm (2.6 in)	53 of 100 (Notable)
Stickney Mill	United States	Record daily precipitation	33.0 mm (1.3 in)	53 of 100 (Notable)
Lancaster	United States	Record daily precipitation	91.2 mm (3.6 in)	53 of 100 (Notable)
Hemet	United States	Record daily precipitation	39.4 mm (1.6 in)	52 of 100 (Notable)
Saugus Pwr Plt 1	United States	Record daily precipitation	45.7 mm (1.8 in)	52 of 100 (Notable)
Berry Creek	United States	Record daily precipitation	73.7 mm (2.9 in)	52 of 100 (Notable)
Escondido #2	United States	Record daily precipitation	34.8 mm (1.4 in)	51 of 100 (Notable)
Borrego Desert Park	United States	Record daily precipitation	52.6 mm (2.1 in)	50 of 100 (Notable)
Holm	Russia	Record daily precipitation	30.7 mm (1.2 in)	49 of 100 (Notable)
Washington	United States	Record high maximum temperature	42.8 C (109.0 F)	49 of 100 (Notable)
Morrisville 6 SW	United States	Record daily precipitation	50.5 mm (2.0 in)	49 of 100 (Notable)
Hatch	United States	Record daily precipitation	26.7 mm (1.1 in)	49 of 100 (Notable)
Ward Mountain	United States	Record daily precipitation	35.6 mm (1.4 in)	49 of 100 (Notable)
March AFB	United States	Record daily precipitation	50.0 mm (2.0 in)	49 of 100 (Notable)
Dillon U of Montana Western	United States	Record daily precipitation	25.4 mm (1.0 in)	48 of 100 (Notable)
Anaheim	United States	Record daily precipitation	32.0 mm (1.3 in)	47 of 100 (Notable)
Eskridge	United States	Record high maximum temperature	42.8 C (109.0 F)	47 of 100 (Notable)
Sugar Land	United States	Record high maximum temperature	41.7 C (107.1 F)	47 of 100 (Notable)
N Is NAS	United States	Record daily precipitation	47.0 mm (1.9 in)	47 of 100 (Notable)
Alpine	United States	Record daily precipitation	29.5 mm (1.2 in)	46 of 100 (Notable)
Wasco	United States	Record daily precipitation	26.2 mm (1.0 in)	46 of 100 (Notable)
Los Angeles Downtown/Usc	United States	Record daily precipitation	63.0 mm (2.5 in)	46 of 100 (Notable)
Death Valley Np	United States	Record daily precipitation	55.9 mm (2.2 in)	45 of 100 (Notable)

Counts by Type and Timescale

1,479 records

Records set or tied on 20 August 2023 by type: Highest daily maximum 397, Lowest daily maximum 215, Highest daily minimum 566, Lowest daily minimum 35, Heaviest daily rainfall 266.

Records on 20 August 2023 by type
Record type	Records
Highest daily maximum	397
Lowest daily maximum	215
Highest daily minimum	566
Lowest daily minimum	35
Heaviest daily rainfall	266
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 2023 by timescale: all-time 25, monthly 93, daily 1,361.

How Much Records Were Beaten By

1,168 broken records

Margins by which the 1,168 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 101.8. Ties are not counted.

Top 20 by Significance

20 August 2023

Top 20 records on 20 August 2023 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 2023	China Lake Naf, US	all-time rain	110.0 mm (4.3 in)	48.0 mm (1.9 in)	79 years	91 of 100 (Exceptional)
20 August 2023	Tonopah AP, US	all-time rain	64.8 mm (2.6 in)	23.7 mm (0.9 in)	46 years	80 of 100 (Exceptional)
20 August 2023	Megri, AM	all-time rain	99.1 mm (3.9 in)	46.4 mm (1.8 in)	36 years	79 of 100 (Major)
20 August 2023	Avalon Catalina AP, US	monthly rain	102.6 mm (4.0 in)	101.8 mm (4.0 in)	71 years	78 of 100 (Major)
20 August 2023	Pasadena, US	daily rain	30.5 mm (1.2 in)	30.5 mm (1.2 in)	129 years	77 of 100 (Major)
20 August 2023	Torrance AP, US	daily rain	41.4 mm (1.6 in)	41.4 mm (1.6 in)	90 years	76 of 100 (Major)
20 August 2023	Camarillo AP, US	monthly rain	55.4 mm (2.2 in)	53.9 mm (2.1 in)	60 years	75 of 100 (Major)
20 August 2023	Santa Ana Fire STN, US	daily rain	25.9 mm (1.0 in)	25.9 mm (1.0 in)	106 years	73 of 100 (Major)
20 August 2023	Palmdale AP, US	all-time rain	99.8 mm (3.9 in)	28.9 mm (1.1 in)	20 years	73 of 100 (Major)
20 August 2023	Hilts Creek, US	all-time rain	106.7 mm (4.2 in)	33.0 mm (1.3 in)	28 years	72 of 100 (Major)
20 August 2023	Los Angeles Intl AP, US	daily rain	51.6 mm (2.0 in)	51.6 mm (2.0 in)	78 years	71 of 100 (Major)
20 August 2023	Culver City, US	daily rain	35.8 mm (1.4 in)	35.8 mm (1.4 in)	88 years	69 of 100 (Major)
20 August 2023	Woodland Hills Pierce College, US	daily rain	51.1 mm (2.0 in)	51.1 mm (2.0 in)	73 years	69 of 100 (Major)
20 August 2023	Sandberg, US	monthly rain	117.3 mm (4.6 in)	68.8 mm (2.7 in)	32 years	68 of 100 (Major)
20 August 2023	Dollarhide Summit, US	monthly rain	55.9 mm (2.2 in)	25.4 mm (1.0 in)	36 years	65 of 100 (Major)
20 August 2023	Pearblossom, US	all-time rain	105.9 mm (4.2 in)	39.9 mm (1.6 in)	4 years	63 of 100 (Major)
20 August 2023	U C L A, US	daily rain	35.6 mm (1.4 in)	35.6 mm (1.4 in)	86 years	63 of 100 (Major)
20 August 2023	Palm Springs, US	monthly rain	67.1 mm (2.6 in)	15.5 mm (0.6 in)	93 years	61 of 100 (Major)
20 August 2023	Palomar Mtn Obsy, US	daily rain	87.6 mm (3.4 in)	80.0 mm (3.1 in)	38 years	61 of 100 (Major)
20 August 2023	Moonshine, US	monthly rain	48.3 mm (1.9 in)	15.3 mm (0.6 in)	41 years	61 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

1797 to 2023

Records set or tied on this calendar date in each year from 1797 to 2023. 2023 had 1,479 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 2023-08-20: 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 20	1,119
20 to 40	38
40 to 60	8
60 to 80	1
80 to 100	1
100 to 120	1