Weather Records on 18 April 1927

391 weather records were set or tied worldwide on 18 April 1927. Highest significance: Parramatta, AU.

Key Facts for 18 April 1927

On 18 April 1927, 391 weather records were set or tied at long-record stations worldwide.
206 were record highs and 65 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 376 daily.
Parramatta set a daily record precipitation of 94.5 mm (3.7 in) on 18 April 1927.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 468 records.

Record Map

391 stations

391 station records on 18 April 1927 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1927: highest significance records shown on the map
Station	Country	Type	Value	Significance
Parramatta	Australia	Record daily precipitation	94.5 mm (3.7 in)	59 of 100 (Notable)
Hutchinson River	United States	Record daily precipitation	64.3 mm (2.5 in)	53 of 100 (Notable)
Burlington	United States	Record daily precipitation	83.6 mm (3.3 in)	52 of 100 (Notable)
Jefferson 3SE	United States	Record daily precipitation	64.8 mm (2.6 in)	52 of 100 (Notable)
Goorangoola	Australia	Record daily precipitation	44.5 mm (1.8 in)	51 of 100 (Notable)
Lebo	United States	Record daily precipitation	51.3 mm (2.0 in)	49 of 100 (Notable)
Nimmitabel Wastewater Treatmen	Australia	Record daily precipitation	69.6 mm (2.7 in)	48 of 100 (Notable)
Albion Park Post Office	Australia	Record daily precipitation	174.0 mm (6.9 in)	47 of 100 (Notable)
Robertson (Caalong Street)	Australia	Record daily precipitation	169.2 mm (6.7 in)	47 of 100 (Notable)
Pratt 3NW	United States	Record daily precipitation	52.3 mm (2.1 in)	46 of 100 (Notable)
Kansas City	United States	Record daily precipitation	59.7 mm (2.4 in)	45 of 100 (Notable)
Helensburgh (Sawan St)	Australia	Record daily precipitation	125.0 mm (4.9 in)	43 of 100 (Notable)
Ozark	United States	Record daily precipitation	81.3 mm (3.2 in)	43 of 100 (Notable)
Gabo Island Lighthouse	Australia	Record daily precipitation	99.1 mm (3.9 in)	41 of 100 (Notable)
Camden Bowling Club	Australia	Record daily precipitation	69.6 mm (2.7 in)	40 of 100 (Notable)
Bowral Post Office	Australia	Record daily precipitation	128.8 mm (5.1 in)	39 of 100 (Notable)
Araluen Post Office	Australia	Record daily precipitation	129.5 mm (5.1 in)	39 of 100 (Notable)
Milton Post Office	Australia	Record daily precipitation	289.1 mm (11.4 in)	39 of 100 (Notable)
Hebron	United States	Record daily precipitation	38.1 mm (1.5 in)	39 of 100 (Notable)
Mosman (Bapaume Road)	Australia	Record daily precipitation	106.2 mm (4.2 in)	38 of 100 (Notable)
Grenola 1 N	United States	Record daily precipitation	58.4 mm (2.3 in)	38 of 100 (Notable)
Neosho	United States	Record daily precipitation	64.3 mm (2.5 in)	38 of 100 (Notable)
Brogers Creek Upper (Cookville	Australia	Record daily precipitation	172.5 mm (6.8 in)	35 of 100 (Notable)
Eden (Caravan Park)	Australia	Record daily precipitation	66.0 mm (2.6 in)	33 of 100 (Routine)
Minonk	United States	Record daily precipitation	45.7 mm (1.8 in)	32 of 100 (Routine)
Ottawa	United States	Record daily precipitation	41.9 mm (1.6 in)	32 of 100 (Routine)
Saskatoon Diefenbaker Int'l A	Canada	Record daily snowfall	20.3 cm (8.0 in)	30 of 100 (Routine)
Springwood Bowling Club	Australia	Record daily precipitation	58.4 mm (2.3 in)	29 of 100 (Routine)
Astoria	United States	Record low minimum temperature	-3.3 C (26.1 F)	29 of 100 (Routine)
Kurrajong Heights (Bells Line	Australia	Record daily precipitation	76.2 mm (3.0 in)	28 of 100 (Routine)
Moss Vale (Hoskins Street)	Australia	Record daily precipitation	129.3 mm (5.1 in)	28 of 100 (Routine)
Buffalo	United States	Record high minimum temperature	16.1 C (61.0 F)	28 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record low maximum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Pembroke Eddy Match	Canada	Record high minimum temperature	7.2 C (45.0 F)	26 of 100 (Routine)
Briksdal	Norway	Record daily precipitation	36.9 mm (1.5 in)	26 of 100 (Routine)
Birch Tree	United States	Record daily precipitation	47.8 mm (1.9 in)	26 of 100 (Routine)
Edmonton	Canada	Record low maximum temperature	-12.2 C (10.0 F)	25 of 100 (Routine)
Windsor Riverside	Canada	Record high maximum temperature	25.0 C (77.0 F)	25 of 100 (Routine)
Kearney 4 NE	United States	Record daily precipitation	27.4 mm (1.1 in)	25 of 100 (Routine)
Barkerville	Canada	Record low maximum temperature	-6.7 C (19.9 F)	24 of 100 (Routine)
Corning	United States	Record daily precipitation	35.6 mm (1.4 in)	24 of 100 (Routine)
Ottumwa 1 WSW	United States	Record daily precipitation	32.0 mm (1.3 in)	24 of 100 (Routine)
Wandoo Wandong	Australia	Record daily precipitation	34.5 mm (1.4 in)	23 of 100 (Routine)
Bonang	Australia	Record daily precipitation	43.7 mm (1.7 in)	23 of 100 (Routine)
Kapskarmo	Norway	Record daily precipitation	28.2 mm (1.1 in)	23 of 100 (Routine)
Eufaula	United States	Record high maximum temperature	33.9 C (93.0 F)	23 of 100 (Routine)
Bloomington Normal	United States	Record daily precipitation	32.8 mm (1.3 in)	23 of 100 (Routine)
Vincennes 4 E	United States	Record high minimum temperature	20.0 C (68.0 F)	23 of 100 (Routine)
Independence	United States	Record daily precipitation	38.4 mm (1.5 in)	23 of 100 (Routine)
Macksville 8 NNE	United States	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Medicine Lodge	United States	Record daily precipitation	36.3 mm (1.4 in)	23 of 100 (Routine)
Marion	United States	Record high minimum temperature	20.6 C (69.1 F)	23 of 100 (Routine)
Yates Ctr	United States	Record daily precipitation	91.4 mm (3.6 in)	22 of 100 (Routine)
Orono	United States	Record high maximum temperature	23.9 C (75.0 F)	22 of 100 (Routine)
Battleford	Canada	Record low maximum temperature	-5.6 C (21.9 F)	21 of 100 (Routine)
Ottawa	Canada	Record high maximum temperature	26.7 C (80.1 F)	21 of 100 (Routine)
Beatrice	Canada	Record high maximum temperature	25.6 C (78.1 F)	21 of 100 (Routine)
Parry Sound	Canada	Record high minimum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Southampton	Canada	Record high minimum temperature	13.3 C (55.9 F)	21 of 100 (Routine)
Peterborough	Canada	Record high maximum temperature	25.6 C (78.1 F)	21 of 100 (Routine)

Counts by Type and Timescale

391 records

Records set or tied on 18 April 1927 by type: Highest daily maximum 76, Lowest daily maximum 38, Highest daily minimum 130, Lowest daily minimum 27, Heaviest daily rainfall 116, Heaviest daily snowfall 3, Deepest snow cover 1.

Records on 18 April 1927 by type
Record type	Records
Highest daily maximum	76
Lowest daily maximum	38
Highest daily minimum	130
Lowest daily minimum	27
Heaviest daily rainfall	116
Heaviest daily snowfall	3
Deepest snow cover	1

Records on 18 April 1927 by timescale: all-time 1, monthly 14, daily 376.

How Much Records Were Beaten By

304 broken records

Margins by which the 304 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 270.0. Ties are not counted.

Top 20 by Significance

18 April 1927

Top 20 records on 18 April 1927 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1927	Parramatta, AU	daily rain	94.5 mm (3.7 in)	73.4 mm (2.9 in)	66 years	59 of 100 (Notable)
18 April 1927	Hutchinson River, US	daily rain	64.3 mm (2.5 in)	59.2 mm (2.3 in)	33 years	53 of 100 (Notable)
18 April 1927	Burlington, US	daily rain	83.6 mm (3.3 in)	75.2 mm (3.0 in)	30 years	52 of 100 (Notable)
18 April 1927	Jefferson 3SE, US	daily rain	64.8 mm (2.6 in)	59.7 mm (2.4 in)	30 years	52 of 100 (Notable)
18 April 1927	Goorangoola, AU	daily rain	44.5 mm (1.8 in)	38.7 mm (1.5 in)	33 years	51 of 100 (Notable)
18 April 1927	Lebo, US	daily rain	51.3 mm (2.0 in)	37.1 mm (1.5 in)	32 years	49 of 100 (Notable)
18 April 1927	Nimmitabel Wastewater Treatmen, AU	daily rain	69.6 mm (2.7 in)	56.4 mm (2.2 in)	18 years	48 of 100 (Notable)
18 April 1927	Albion Park Post Office, AU	daily rain	174.0 mm (6.9 in)	160.0 mm (6.3 in)	16 years	47 of 100 (Notable)
18 April 1927	Robertson (Caalong Street), AU	daily rain	169.2 mm (6.7 in)	143.8 mm (5.7 in)	13 years	47 of 100 (Notable)
18 April 1927	Pratt 3NW, US	daily rain	52.3 mm (2.1 in)	42.1 mm (1.7 in)	28 years	46 of 100 (Notable)
18 April 1927	Kansas City, US	daily rain	59.7 mm (2.4 in)	47.0 mm (1.9 in)	6 years	45 of 100 (Notable)
18 April 1927	Helensburgh (Sawan St), AU	daily rain	125.0 mm (4.9 in)	86.4 mm (3.4 in)	0 years	43 of 100 (Notable)
18 April 1927	Ozark, US	daily rain	81.3 mm (3.2 in)	44.2 mm (1.7 in)	32 years	43 of 100 (Notable)
18 April 1927	Gabo Island Lighthouse, AU	monthly rain	99.1 mm (3.9 in)	23.4 mm (0.9 in)	12 years	41 of 100 (Notable)
18 April 1927	Camden Bowling Club, AU	daily rain	69.6 mm (2.7 in)	53.9 mm (2.1 in)	16 years	40 of 100 (Notable)
18 April 1927	Bowral Post Office, AU	monthly rain	128.8 mm (5.1 in)	24.2 mm (1.0 in)	22 years	39 of 100 (Notable)
18 April 1927	Araluen Post Office, AU	monthly rain	129.5 mm (5.1 in)	27.9 mm (1.1 in)	28 years	39 of 100 (Notable)
18 April 1927	Milton Post Office, AU	all-time rain	289.1 mm (11.4 in)	24.7 mm (1.0 in)	16 years	39 of 100 (Notable)
18 April 1927	Hebron, US	daily rain	38.1 mm (1.5 in)	30.5 mm (1.2 in)	33 years	39 of 100 (Notable)
18 April 1927	Mosman (Bapaume Road), AU	daily rain	106.2 mm (4.2 in)	61.0 mm (2.4 in)	0 years	38 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

1793 to 1927

Records set or tied on this calendar date in each year from 1793 to 1927. 1927 had 391 records.

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

Records on 04-18 in each year
Year	Records
1793	1
1807	2
1815	1
1838	1
1847	1
1849	1
1851	1
1852	3
1854	3
1855	1
1865	4
1867	1
1870	1
1871	1
1875	4
1877	2
1878	1
1879	3
1880	2
1884	2
1886	2
1887	3
1888	1
1889	1
1890	2
1891	1
1892	3
1893	5
1894	7
1895	2
1896	3
1897	5
1898	8
1899	2
1900	2
1901	6
1902	5
1903	11
1904	9
1905	12
1906	18
1907	17
1908	37
1909	19
1910	19
1911	25
1912	21
1913	26
1914	38
1915	31
1916	22
1917	40
1918	76
1919	16
1920	64
1921	58
1922	85
1923	107
1924	101
1925	154
1926	322
1927	391
1928	323
1929	126
1930	113
1931	173
1932	326
1933	211
1934	391
1935	264
1936	483
1937	477
1938	711
1939	525
1940	322
1941	496
1942	287
1943	298
1944	259
1945	371
1946	357
1947	444
1948	932
1949	345
1950	244
1951	658
1952	536
1953	1,322
1954	442
1955	817
1956	467
1957	629
1958	370
1959	468
1960	320
1961	520
1962	484
1963	662
1964	449
1965	363
1966	776
1967	882
1968	867
1969	795
1970	771
1971	1,106
1972	470
1973	953
1974	326
1975	751
1976	1,309
1977	717
1978	803
1979	841
1980	842
1981	708
1982	616
1983	2,082
1984	625
1985	1,119
1986	622
1987	1,068
1988	936
1989	625
1990	1,368
1991	780
1992	702
1993	730
1994	1,218
1995	1,601
1996	826
1997	1,256
1998	1,011
1999	1,428
2000	912
2001	1,487
2002	2,084
2003	969
2004	846
2005	622
2006	1,262
2007	675
2008	913
2009	624
2010	478
2011	1,122
2012	744
2013	2,509
2014	534
2015	519
2016	973
2017	588
2018	1,202
2019	601
2020	770
2021	592
2022	1,013
2023	739
2024	641
2025	997
2026	498

Download the Data

Data for records on 1927-04-18: 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).

Margin	Records
0 to 50	292
50 to 100	8
100 to 150	2
150 to 200	1
200 to 250	0
250 to 300	1