Weather Records on 20 July 1927

106 weather records were set or tied worldwide on 20 July 1927. Highest significance: Medicine Hat A, CA.

Key Facts for 20 July 1927

On 20 July 1927, 106 weather records were set or tied at long-record stations worldwide.
28 were record highs and 49 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 106 daily.
Medicine Hat A set a daily record precipitation of 44.2 mm (1.7 in) on 20 July 1927.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 461 records.

Record Map

106 stations

106 station records on 20 July 1927 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1927: highest significance records shown on the map
Station	Country	Type	Value	Significance
Medicine Hat A	Canada	Record daily precipitation	44.2 mm (1.7 in)	51 of 100 (Notable)
Wolfville	Canada	Record daily precipitation	64.3 mm (2.5 in)	50 of 100 (Notable)
Nikolaev	Ukraine	Record daily precipitation	33.0 mm (1.3 in)	48 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record daily precipitation	30.6 mm (1.2 in)	36 of 100 (Notable)
Coulta	Australia	Record daily precipitation	28.4 mm (1.1 in)	26 of 100 (Routine)
Pembroke Eddy Match	Canada	Record low minimum temperature	6.1 C (43.0 F)	26 of 100 (Routine)
Hebron	United States	Record daily precipitation	45.7 mm (1.8 in)	25 of 100 (Routine)
Table Rock 4N	United States	Record daily precipitation	47.0 mm (1.9 in)	25 of 100 (Routine)
Concordia ASOS	United States	Record daily precipitation	60.7 mm (2.4 in)	25 of 100 (Routine)
Tizi Ouzou	Algeria	Record low maximum temperature	28.0 C (82.4 F)	23 of 100 (Routine)
La Crosse Wb City	United States	Record low minimum temperature	10.0 C (50.0 F)	22 of 100 (Routine)
Winfield 3NE	United States	Record daily precipitation	47.0 mm (1.9 in)	21 of 100 (Routine)
Toledo Blade	United States	Record low minimum temperature	11.1 C (52.0 F)	21 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record daily precipitation	17.9 mm (0.7 in)	20 of 100 (Routine)
Tallinn	Estonia	Record daily precipitation	15.3 mm (0.6 in)	20 of 100 (Routine)
Crowlands (Woodlands)	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Olands Norra Udde	Sweden	Record daily precipitation	18.7 mm (0.7 in)	20 of 100 (Routine)
Tampa	United States	Record daily precipitation	51.3 mm (2.0 in)	20 of 100 (Routine)
Howell Wwtp	United States	Record low minimum temperature	6.7 C (44.1 F)	20 of 100 (Routine)
Cowles	United States	Record high maximum temperature	31.7 C (89.1 F)	19 of 100 (Routine)
Lake Mills Wwtp	United States	Record low minimum temperature	6.7 C (44.1 F)	19 of 100 (Routine)
Durango	United States	Record low maximum temperature	20.6 C (69.1 F)	18 of 100 (Routine)
New Hampton	United States	Record low minimum temperature	8.9 C (48.0 F)	18 of 100 (Routine)
New London	United States	Record low minimum temperature	7.8 C (46.0 F)	18 of 100 (Routine)
Manhattan	United States	Record daily precipitation	38.4 mm (1.5 in)	17 of 100 (Routine)
North Bridgton	United States	Record daily precipitation	31.8 mm (1.3 in)	17 of 100 (Routine)
Detroit Lakes 1 NNE	United States	Record low maximum temperature	18.3 C (64.9 F)	17 of 100 (Routine)
Enisejsk	Russia	Record low minimum temperature	5.0 C (41.0 F)	16 of 100 (Routine)
Fergus Falls	United States	Record low maximum temperature	18.9 C (66.0 F)	16 of 100 (Routine)
Grand Meadow	United States	Record low minimum temperature	8.3 C (46.9 F)	15 of 100 (Routine)
Gorlitz	Germany	Record low maximum temperature	14.6 C (58.3 F)	14 of 100 (Routine)
Willow City	United States	Record daily precipitation	16.0 mm (0.6 in)	14 of 100 (Routine)
Feodosiia	Ukraine	Record high maximum temperature	33.3 C (91.9 F)	13 of 100 (Routine)
Macksville 8 NNE	United States	Record high minimum temperature	22.2 C (72.0 F)	13 of 100 (Routine)
Grayling	United States	Record low minimum temperature	3.3 C (37.9 F)	13 of 100 (Routine)
Millington 3 SE	United States	Record low minimum temperature	6.7 C (44.1 F)	13 of 100 (Routine)
Detroit Lakes 1 NNE	United States	Record daily precipitation	16.8 mm (0.7 in)	13 of 100 (Routine)
Glendive	United States	Record daily precipitation	24.9 mm (1.0 in)	13 of 100 (Routine)
Lakeview 2 NNW	United States	Record high minimum temperature	15.6 C (60.1 F)	13 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record low minimum temperature	6.7 C (44.1 F)	13 of 100 (Routine)
St Georges	Canada	Record high maximum temperature	24.4 C (75.9 F)	12 of 100 (Routine)
Cheyenne Wells 2NE	United States	Record high minimum temperature	20.6 C (69.1 F)	12 of 100 (Routine)
Tampa	United States	Record low minimum temperature	20.0 C (68.0 F)	12 of 100 (Routine)
Atchison	United States	Record daily precipitation	22.4 mm (0.9 in)	12 of 100 (Routine)
Medicine Lodge	United States	Record high minimum temperature	22.8 C (73.0 F)	12 of 100 (Routine)
Donaldsonville 4 SW	United States	Record high maximum temperature	37.2 C (99.0 F)	12 of 100 (Routine)
Lexington	United States	Record low maximum temperature	23.3 C (73.9 F)	12 of 100 (Routine)
Medford	United States	Record low minimum temperature	7.2 C (45.0 F)	12 of 100 (Routine)
Pine River 3 NE	United States	Record low minimum temperature	9.4 C (48.9 F)	12 of 100 (Routine)
Portage Wwtp	United States	Record low minimum temperature	9.4 C (48.9 F)	12 of 100 (Routine)
Port Clinton (Yararoo)	Australia	Record daily precipitation	13.0 mm (0.5 in)	11 of 100 (Routine)
Saskatoon Diefenbaker Int'l A	Canada	Record daily precipitation	13.5 mm (0.5 in)	11 of 100 (Routine)
Bisbee	United States	Record high maximum temperature	38.9 C (102.0 F)	11 of 100 (Routine)
Petoskey	United States	Record low minimum temperature	6.1 C (43.0 F)	11 of 100 (Routine)
Arapaho	United States	Record high minimum temperature	23.3 C (73.9 F)	11 of 100 (Routine)
St Cloud State Clg	United States	Record low maximum temperature	18.9 C (66.0 F)	11 of 100 (Routine)
San Bernardino F S 226	United States	Record high minimum temperature	21.7 C (71.1 F)	10 of 100 (Routine)
Owosso Wwtp	United States	Record low minimum temperature	7.8 C (46.0 F)	10 of 100 (Routine)
Petropavlovskij Majak	Russia	Record daily precipitation	13.7 mm (0.5 in)	9 of 100 (Routine)
Petropavlovsk-Kamchatskij	Russia	Record daily precipitation	13.7 mm (0.5 in)	9 of 100 (Routine)

Counts by Type and Timescale

106 records

Records set or tied on 20 July 1927 by type: Highest daily maximum 7, Lowest daily maximum 12, Highest daily minimum 21, Lowest daily minimum 37, Heaviest daily rainfall 29.

Records on 20 July 1927 by type
Record type	Records
Highest daily maximum	7
Lowest daily maximum	12
Highest daily minimum	21
Lowest daily minimum	37
Heaviest daily rainfall	29
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1927 by timescale: all-time 0, monthly 0, daily 106.

How Much Records Were Beaten By

78 broken records

Margins by which the 78 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 42.7. Ties are not counted.

Top 20 by Significance

20 July 1927

Top 20 records on 20 July 1927 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1927	Medicine Hat A, CA	daily rain	44.2 mm (1.7 in)	42.7 mm (1.7 in)	24 years	51 of 100 (Notable)
20 July 1927	Wolfville, CA	daily rain	64.3 mm (2.5 in)	36.4 mm (1.4 in)	16 years	50 of 100 (Notable)
20 July 1927	Nikolaev, UA	daily rain	33.0 mm (1.3 in)	29.9 mm (1.2 in)	37 years	48 of 100 (Notable)
20 July 1927	Dublin Phoenix Park, IE	daily rain	30.6 mm (1.2 in)	15.1 mm (0.6 in)	16 years	36 of 100 (Notable)
20 July 1927	Coulta, AU	daily rain	28.4 mm (1.1 in)	9.6 mm (0.38 in)	17 years	26 of 100 (Routine)
20 July 1927	Pembroke Eddy Match, CA	daily low min	6.1 C (43.0 F)	1.1 C (2.0 F)	60 years	26 of 100 (Routine)
20 July 1927	Hebron, US	daily rain	45.7 mm (1.8 in)	23.1 mm (0.9 in)	29 years	25 of 100 (Routine)
20 July 1927	Table Rock 4N, US	daily rain	47.0 mm (1.9 in)	35.6 mm (1.4 in)	22 years	25 of 100 (Routine)
20 July 1927	Concordia ASOS, US	daily rain	60.7 mm (2.4 in)	19.0 mm (0.7 in)	29 years	25 of 100 (Routine)
20 July 1927	Tizi Ouzou, DZ	daily low max	28.0 C (82.4 F)	4.0 C (7.2 F)	33 years	23 of 100 (Routine)
20 July 1927	La Crosse Wb City, US	daily low min	10.0 C (50.0 F)	1.1 C (2.0 F)	46 years	22 of 100 (Routine)
20 July 1927	Winfield 3NE, US	daily rain	47.0 mm (1.9 in)	19.1 mm (0.8 in)	32 years	21 of 100 (Routine)
20 July 1927	Toledo Blade, US	daily low min	11.1 C (52.0 F)	1.1 C (2.0 F)	44 years	21 of 100 (Routine)
20 July 1927	Svyatoy Nos;Cape(Closed), RU	daily rain	17.9 mm (0.7 in)	14.1 mm (0.6 in)	24 years	20 of 100 (Routine)
20 July 1927	Tallinn, EE	daily rain	15.3 mm (0.6 in)	3.8 mm (0.15 in)	53 years	20 of 100 (Routine)
20 July 1927	Crowlands (Woodlands), AU	daily rain	21.8 mm (0.9 in)	7.8 mm (0.31 in)	10 years	20 of 100 (Routine)
20 July 1927	Olands Norra Udde, SE	daily rain	18.7 mm (0.7 in)	3.8 mm (0.15 in)	46 years	20 of 100 (Routine)
20 July 1927	Tampa, US	daily rain	51.3 mm (2.0 in)	24.9 mm (1.0 in)	8 years	20 of 100 (Routine)
20 July 1927	Howell Wwtp, US	daily low min	6.7 C (44.1 F)	3.3 C (5.9 F)	33 years	20 of 100 (Routine)
20 July 1927	Cowles, US	daily high max	31.7 C (89.1 F)	3.4 C (6.1 F)	17 years	19 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

1809 to 1927

Records set or tied on this calendar date in each year from 1809 to 1927. 1927 had 106 records.

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

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 1927-07-20: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Histogram of margins by which records were beaten on 20 July 1927
Margin	Records
0 to 10	67
10 to 20	4
20 to 30	4
30 to 40	2
40 to 50	1