Weather Records on 21 June 1923

229 weather records were set or tied worldwide on 21 June 1923. Highest significance: Newark Liberty Intl AP, US.

Key Facts for 21 June 1923

On 21 June 1923, 229 weather records were set or tied at long-record stations worldwide.
173 were record highs and 36 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 16 monthly and 212 daily.
Newark Liberty Intl AP set a monthly record high minimum temperature of 26.1 C (79.0 F) on 21 June 1923.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 432 records.

Record Map

229 stations

229 station records on 21 June 1923 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 June 1923: highest significance records shown on the map
Station	Country	Type	Value	Significance
Newark Liberty Intl AP	United States	Record high minimum temperature	26.1 C (79.0 F)	39 of 100 (Notable)
Chaplin	Canada	Record daily precipitation	40.9 mm (1.6 in)	35 of 100 (Notable)
Napoleon	United States	Record daily precipitation	51.3 mm (2.0 in)	35 of 100 (Notable)
Havre Wb City	United States	Record daily precipitation	34.3 mm (1.4 in)	34 of 100 (Routine)
Calgary Int'l A	Canada	Record daily precipitation	30.5 mm (1.2 in)	32 of 100 (Routine)
Jena Sternwarte	Germany	Record low maximum temperature	11.9 C (53.4 F)	32 of 100 (Routine)
Ferrara	Italy	Record daily precipitation	28.7 mm (1.1 in)	31 of 100 (Routine)
Moorestown 4 E	United States	Record high maximum temperature	40.6 C (105.1 F)	31 of 100 (Routine)
Savanne	Canada	Record daily precipitation	39.4 mm (1.6 in)	28 of 100 (Routine)
World Trade Ctr	United States	Record high minimum temperature	26.1 C (79.0 F)	26 of 100 (Routine)
Corning	United States	Record high minimum temperature	26.7 C (80.1 F)	25 of 100 (Routine)
Ny City Cntrl Park	United States	Record high maximum temperature	35.6 C (96.1 F)	25 of 100 (Routine)
Alton	Canada	Record high minimum temperature	22.2 C (72.0 F)	24 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high minimum temperature	23.3 C (73.9 F)	24 of 100 (Routine)
Philadelphia City	United States	Record high maximum temperature	37.2 C (99.0 F)	24 of 100 (Routine)
Philadelphia City	United States	Record high minimum temperature	26.7 C (80.1 F)	24 of 100 (Routine)
Hamilton	Canada	Record high minimum temperature	21.1 C (70.0 F)	23 of 100 (Routine)
Yarmouth	Canada	Record high maximum temperature	23.9 C (75.0 F)	22 of 100 (Routine)
Easton	United States	Record high maximum temperature	36.1 C (97.0 F)	22 of 100 (Routine)
Framingham	United States	Record high minimum temperature	21.7 C (71.1 F)	22 of 100 (Routine)
Baltimore Customs House	United States	Record high maximum temperature	37.8 C (100.0 F)	22 of 100 (Routine)
Lexington Bluegrass AP	United States	Record high minimum temperature	23.3 C (73.9 F)	22 of 100 (Routine)
Washington	United States	Record high maximum temperature	36.7 C (98.1 F)	21 of 100 (Routine)
Haparanda	Sweden	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Marseille Obs. Palais-Lonchamp	France	Record daily precipitation	15.9 mm (0.6 in)	20 of 100 (Routine)
Toronto	Canada	Record high minimum temperature	21.1 C (70.0 F)	20 of 100 (Routine)
Medicine Hat A	Canada	Record daily precipitation	30.0 mm (1.2 in)	19 of 100 (Routine)
Irkutsk	Russia	Record low maximum temperature	7.3 C (45.1 F)	19 of 100 (Routine)
Fitchburg 4 SE	United States	Record high minimum temperature	22.8 C (73.0 F)	19 of 100 (Routine)
Worcester	United States	Record high minimum temperature	23.3 C (73.9 F)	19 of 100 (Routine)
Alta	United States	Record high minimum temperature	21.1 C (70.0 F)	18 of 100 (Routine)
Bedford	United States	Record high minimum temperature	21.7 C (71.1 F)	18 of 100 (Routine)
Blue Hill Coop	United States	Record high minimum temperature	23.3 C (73.9 F)	18 of 100 (Routine)
Chestnut Hill	United States	Record high minimum temperature	23.9 C (75.0 F)	18 of 100 (Routine)
Atlantic City Marina	United States	Record high maximum temperature	32.8 C (91.0 F)	18 of 100 (Routine)
Atlantic City Marina	United States	Record high minimum temperature	23.3 C (73.9 F)	18 of 100 (Routine)
Middletown 4 W	United States	Record high minimum temperature	21.7 C (71.1 F)	17 of 100 (Routine)
Darlington	United States	Record high maximum temperature	37.8 C (100.0 F)	17 of 100 (Routine)
Bridgeton 1 NE	United States	Record high maximum temperature	37.8 C (100.0 F)	17 of 100 (Routine)
Vineland	United States	Record high maximum temperature	37.8 C (100.0 F)	17 of 100 (Routine)
World Trade Ctr	United States	Record high maximum temperature	33.9 C (93.0 F)	17 of 100 (Routine)
Hillsboro	United States	Record high minimum temperature	20.0 C (68.0 F)	17 of 100 (Routine)
Meadow Valley Rs	United States	Record high minimum temperature	20.6 C (69.1 F)	17 of 100 (Routine)
Ny City Cntrl Park	United States	Record high minimum temperature	25.0 C (77.0 F)	17 of 100 (Routine)
Arnsberg	Germany	Record low maximum temperature	12.5 C (54.5 F)	16 of 100 (Routine)
Buckeye	United States	Record low maximum temperature	34.4 C (93.9 F)	16 of 100 (Routine)
Ft Bidwell	United States	Record low maximum temperature	16.1 C (61.0 F)	16 of 100 (Routine)
Middletown 4 W	United States	Record high maximum temperature	34.4 C (93.9 F)	16 of 100 (Routine)
Lowell	United States	Record high maximum temperature	34.4 C (93.9 F)	16 of 100 (Routine)
Adrian 2 NNE	United States	Record high maximum temperature	36.7 C (98.1 F)	16 of 100 (Routine)
Charlotteburg Rsvr	United States	Record high minimum temperature	19.4 C (66.9 F)	16 of 100 (Routine)
Buffalo	United States	Record high maximum temperature	29.4 C (84.9 F)	16 of 100 (Routine)
Granville	United States	Record high maximum temperature	36.1 C (97.0 F)	16 of 100 (Routine)
Lewiston	United States	Record high minimum temperature	20.0 C (68.0 F)	15 of 100 (Routine)
Woodstock	United States	Record high maximum temperature	35.0 C (95.0 F)	15 of 100 (Routine)
Framingham	United States	Record high maximum temperature	35.0 C (95.0 F)	15 of 100 (Routine)
Lake Cochituate	United States	Record high maximum temperature	36.1 C (97.0 F)	15 of 100 (Routine)
Lawrence	United States	Record high minimum temperature	21.1 C (70.0 F)	15 of 100 (Routine)
Moorestown 4 E	United States	Record high minimum temperature	22.2 C (72.0 F)	15 of 100 (Routine)
Paterson	United States	Record high maximum temperature	37.2 C (99.0 F)	15 of 100 (Routine)

Counts by Type and Timescale

229 records

Records set or tied on 21 June 1923 by type: Highest daily maximum 83, Lowest daily maximum 30, Highest daily minimum 90, Lowest daily minimum 6, Heaviest daily rainfall 20.

Records on 21 June 1923 by type
Record type	Records
Highest daily maximum	83
Lowest daily maximum	30
Highest daily minimum	90
Lowest daily minimum	6
Heaviest daily rainfall	20
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 June 1923 by timescale: all-time 1, monthly 16, daily 212.

How Much Records Were Beaten By

180 broken records

Margins by which the 180 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 33.5. Ties are not counted.

Top 20 by Significance

21 June 1923

Top 20 records on 21 June 1923 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 June 1923	Newark Liberty Intl AP, US	monthly high min	26.1 C (79.0 F)	0.5 C (0.9 F)	66 years	39 of 100 (Notable)
21 June 1923	Chaplin, CA	daily rain	40.9 mm (1.6 in)	30.5 mm (1.2 in)	5 years	35 of 100 (Notable)
21 June 1923	Napoleon, US	daily rain	51.3 mm (2.0 in)	33.5 mm (1.3 in)	4 years	35 of 100 (Notable)
21 June 1923	Havre Wb City, US	daily rain	34.3 mm (1.4 in)	22.6 mm (0.9 in)	6 years	34 of 100 (Routine)
21 June 1923	Calgary Int'l A, CA	daily rain	30.5 mm (1.2 in)	21.9 mm (0.9 in)	17 years	32 of 100 (Routine)
21 June 1923	Jena Sternwarte, DE	daily low max	11.9 C (53.4 F)	1.2 C (2.2 F)	67 years	32 of 100 (Routine)
21 June 1923	Ferrara, IT	daily rain	28.7 mm (1.1 in)	18.0 mm (0.7 in)	20 years	31 of 100 (Routine)
21 June 1923	Moorestown 4 E, US	all-time high max	40.6 C (105.1 F)	1.2 C (2.2 F)	21 years	31 of 100 (Routine)
21 June 1923	Savanne, CA	daily rain	39.4 mm (1.6 in)	18.8 mm (0.7 in)	27 years	28 of 100 (Routine)
21 June 1923	World Trade Ctr, US	monthly high min	26.1 C (79.0 F)	1.1 C (2.0 F)	28 years	26 of 100 (Routine)
21 June 1923	Corning, US	monthly high min	26.7 C (80.1 F)	1.7 C (3.1 F)	27 years	25 of 100 (Routine)
21 June 1923	Ny City Cntrl Park, US	daily high max	35.6 C (96.1 F)	2.3 C (4.1 F)	50 years	25 of 100 (Routine)
21 June 1923	Alton, CA	monthly high min	22.2 C (72.0 F)	1.1 C (2.0 F)	31 years	24 of 100 (Routine)
21 June 1923	Cleveland 2717 Euclid, US	daily high min	23.3 C (73.9 F)	1.6 C (2.9 F)	50 years	24 of 100 (Routine)
21 June 1923	Philadelphia City, US	monthly high max	37.2 C (99.0 F)	0.5 C (0.9 F)	29 years	24 of 100 (Routine)
21 June 1923	Philadelphia City, US	monthly high min	26.7 C (80.1 F)	0.6 C (1.1 F)	28 years	24 of 100 (Routine)
21 June 1923	Hamilton, CA	daily high min	21.1 C (70.0 F)	1.7 C (3.1 F)	50 years	23 of 100 (Routine)
21 June 1923	Yarmouth, CA	daily high max	23.9 C (75.0 F)	1.7 C (3.1 F)	36 years	22 of 100 (Routine)
21 June 1923	Easton, US	monthly high max	36.1 C (97.0 F)	0.5 C (0.9 F)	28 years	22 of 100 (Routine)
21 June 1923	Framingham, US	daily high min	21.7 C (71.1 F)	4.5 C (8.1 F)	26 years	22 of 100 (Routine)

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 1923

Records set or tied on this calendar date in each year from 1802 to 1923. 1923 had 229 records.

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

Records on 06-21 in each year
Year	Records
1802	1
1803	2
1805	1
1814	1
1821	3
1828	1
1831	1
1839	2
1846	1
1853	1
1855	1
1861	3
1865	1
1868	1
1869	4
1870	3
1871	1
1873	1
1874	1
1875	2
1879	1
1880	1
1881	1
1882	1
1883	1
1884	2
1885	1
1886	3
1887	1
1888	3
1889	1
1891	1
1892	2
1893	7
1895	6
1896	3
1897	3
1898	6
1899	6
1900	6
1901	5
1902	20
1903	15
1904	7
1905	14
1906	19
1907	15
1908	20
1909	19
1910	36
1911	12
1912	14
1913	34
1914	24
1915	40
1916	80
1917	97
1918	77
1919	32
1920	42
1921	85
1922	43
1923	229
1924	124
1925	333
1926	162
1927	146
1928	139
1929	84
1930	177
1931	340
1932	180
1933	645
1934	223
1935	247
1936	642
1937	475
1938	396
1939	250
1940	674
1941	401
1942	340
1943	439
1944	426
1945	709
1946	386
1947	637
1948	392
1949	391
1950	329
1951	347
1952	502
1953	761
1954	501
1955	271
1956	534
1957	932
1958	627
1959	356
1960	471
1961	956
1962	176
1963	667
1964	458
1965	400
1966	467
1967	789
1968	654
1969	687
1970	614
1971	394
1972	934
1973	683
1974	598
1975	996
1976	746
1977	476
1978	368
1979	857
1980	677
1981	889
1982	658
1983	752
1984	913
1985	516
1986	601
1987	940
1988	1,834
1989	856
1990	847
1991	1,067
1992	1,679
1993	939
1994	777
1995	978
1996	1,075
1997	1,037
1998	1,746
1999	994
2000	1,212
2001	658
2002	828
2003	1,034
2004	697
2005	1,090
2006	774
2007	1,085
2008	580
2009	1,060
2010	852
2011	1,340
2012	1,151
2013	571
2014	434
2015	707
2016	877
2017	954
2018	577
2019	969
2020	519
2021	1,132
2022	774
2023	987
2024	679
2025	1,536
2026	736

Download the Data

Data for records on 1923-06-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 5	171
5 to 10	2
10 to 15	1
15 to 20	2
20 to 25	2
25 to 30	0
30 to 35	2