Weather Records on 18 April 1931

173 weather records were set or tied worldwide on 18 April 1931. Highest significance: Mount Florance, AU.

Key Facts for 18 April 1931

On 18 April 1931, 173 weather records were set or tied at long-record stations worldwide.
101 were record highs and 17 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 2 monthly and 170 daily.
Mount Florance set a daily record precipitation of 71.4 mm (2.8 in) on 18 April 1931.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 469 records.

Record Map

173 stations

173 station records on 18 April 1931 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1931: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mount Florance	Australia	Record daily precipitation	71.4 mm (2.8 in)	47 of 100 (Notable)
Dhakuakhana	India	Record daily precipitation	206.2 mm (8.1 in)	47 of 100 (Notable)
Karratha Station	Australia	Record daily precipitation	33.5 mm (1.3 in)	42 of 100 (Notable)
Winnipeg St Johns Coll	Canada	Record high minimum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Nilambur	India	Record daily precipitation	35.3 mm (1.4 in)	28 of 100 (Routine)
Orangajuli	India	Record daily precipitation	59.4 mm (2.3 in)	27 of 100 (Routine)
Polavaram	India	Record daily precipitation	29.2 mm (1.1 in)	26 of 100 (Routine)
Sanklespur	India	Record daily precipitation	28.7 mm (1.1 in)	26 of 100 (Routine)
Paterson	United States	Record high minimum temperature	17.8 C (64.0 F)	26 of 100 (Routine)
Yarraloola	Australia	Record daily precipitation	26.9 mm (1.1 in)	24 of 100 (Routine)
Brocken	Germany	Record snow depth	125.0 cm (49.2 in)	23 of 100 (Routine)
Gadhinglaj	India	Record daily precipitation	28.7 mm (1.1 in)	23 of 100 (Routine)
Mazbat(Majbat)	India	Record daily precipitation	45.7 mm (1.8 in)	22 of 100 (Routine)
Junction 4SSW	United States	Record daily precipitation	43.7 mm (1.7 in)	22 of 100 (Routine)
Oakbank	Canada	Record high minimum temperature	12.8 C (55.0 F)	21 of 100 (Routine)
Willcox	United States	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Roebourne	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Mardie	Australia	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Ft Stockton 1	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Urawilkie	Australia	Record daily precipitation	3.8 mm (0.15 in)	20 of 100 (Routine)
Sringeri	India	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Joseph	United States	Record low minimum temperature	-8.9 C (16.0 F)	20 of 100 (Routine)
Marble Bar Comparison	Australia	Record low maximum temperature	25.1 C (77.2 F)	19 of 100 (Routine)
Gowrie (Rotherfield)	Australia	Record daily precipitation	29.7 mm (1.2 in)	18 of 100 (Routine)
West Terschelling	Netherlands	Record daily precipitation	15.7 mm (0.6 in)	18 of 100 (Routine)
Merced	United States	Record high maximum temperature	32.8 C (91.0 F)	17 of 100 (Routine)
Genoa 2 W	United States	Record high minimum temperature	16.7 C (62.1 F)	17 of 100 (Routine)
Sonnblick	Austria	Record daily precipitation	23.5 mm (0.9 in)	16 of 100 (Routine)
Fort Simpson	Canada	Record daily snowfall	7.6 cm (3.0 in)	16 of 100 (Routine)
Shirol	India	Record daily precipitation	3.8 mm (0.15 in)	16 of 100 (Routine)
Verhojansk	Russia	Record daily precipitation	0.5 mm (0.02 in)	16 of 100 (Routine)
Crookston NW Exp STN	United States	Record high minimum temperature	12.8 C (55.0 F)	16 of 100 (Routine)
Albion	United States	Record high minimum temperature	12.8 C (55.0 F)	16 of 100 (Routine)
Forest Grove	United States	Record low minimum temperature	-2.2 C (28.0 F)	16 of 100 (Routine)
De Smet	United States	Record high minimum temperature	12.8 C (55.0 F)	16 of 100 (Routine)
Georgetown Post Office	Australia	Record high maximum temperature	35.7 C (96.3 F)	15 of 100 (Routine)
Leakesville 6 WSW	United States	Record high maximum temperature	32.2 C (90.0 F)	15 of 100 (Routine)
Bottineau	United States	Record high maximum temperature	28.9 C (84.0 F)	15 of 100 (Routine)
Sacramento 5 ESE	United States	Record high maximum temperature	28.3 C (82.9 F)	15 of 100 (Routine)
Peedamullah	Australia	Record daily precipitation	19.1 mm (0.8 in)	14 of 100 (Routine)
Innsbruck	Austria	Record daily precipitation	16.5 mm (0.6 in)	14 of 100 (Routine)
Kodaikanal	India	Record daily precipitation	48.0 mm (1.9 in)	14 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record low minimum temperature	-17.5 C (0.5 F)	14 of 100 (Routine)
Lowestoft	United Kingdom	Record low maximum temperature	5.0 C (41.0 F)	14 of 100 (Routine)
Columbus 3 NE	United States	Record high minimum temperature	11.1 C (52.0 F)	14 of 100 (Routine)
Indian Lake 2SW	United States	Record high minimum temperature	3.9 C (39.0 F)	14 of 100 (Routine)
Mayville	United States	Record high minimum temperature	13.3 C (55.9 F)	14 of 100 (Routine)
Riverside 7 SSW	United States	Record low minimum temperature	-8.9 C (16.0 F)	14 of 100 (Routine)
Kennebec	United States	Record high minimum temperature	14.4 C (57.9 F)	14 of 100 (Routine)
Aberdeen	United States	Record high minimum temperature	13.9 C (57.0 F)	14 of 100 (Routine)
Norway House	Canada	Record high minimum temperature	9.4 C (48.9 F)	13 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record daily precipitation	9.5 mm (0.37 in)	13 of 100 (Routine)
Stockton 2	United States	Record high maximum temperature	32.2 C (90.0 F)	13 of 100 (Routine)
Hypoluxo	United States	Record low maximum temperature	22.8 C (73.0 F)	13 of 100 (Routine)
Carroll	United States	Record high minimum temperature	10.6 C (51.1 F)	13 of 100 (Routine)
Calumet	United States	Record high maximum temperature	25.0 C (77.0 F)	13 of 100 (Routine)
Detroit Lakes 1 NNE	United States	Record high minimum temperature	10.0 C (50.0 F)	13 of 100 (Routine)
Blair	United States	Record high minimum temperature	13.3 C (55.9 F)	13 of 100 (Routine)
Madison	United States	Record high maximum temperature	29.4 C (84.9 F)	13 of 100 (Routine)
Greensboro	United States	Record daily precipitation	13.5 mm (0.5 in)	13 of 100 (Routine)

Counts by Type and Timescale

173 records

Records set or tied on 18 April 1931 by type: Highest daily maximum 34, Lowest daily maximum 6, Highest daily minimum 67, Lowest daily minimum 11, Heaviest daily rainfall 53, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 18 April 1931 by type
Record type	Records
Highest daily maximum	34
Lowest daily maximum	6
Highest daily minimum	67
Lowest daily minimum	11
Heaviest daily rainfall	53
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 18 April 1931 by timescale: all-time 1, monthly 2, daily 170.

How Much Records Were Beaten By

144 broken records

Margins by which the 144 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 500.0. Ties are not counted.

Top 20 by Significance

18 April 1931

Top 20 records on 18 April 1931 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1931	Mount Florance, AU	daily rain	71.4 mm (2.8 in)	70.9 mm (2.8 in)	10 years	47 of 100 (Notable)
18 April 1931	Dhakuakhana, IN	all-time rain	206.2 mm (8.1 in)	28.4 mm (1.1 in)	29 years	47 of 100 (Notable)
18 April 1931	Karratha Station, AU	monthly rain	33.5 mm (1.3 in)	29.9 mm (1.2 in)	1 year	42 of 100 (Notable)
18 April 1931	Winnipeg St Johns Coll, CA	daily high min	12.8 C (55.0 F)	5.6 C (10.1 F)	52 years	30 of 100 (Routine)
18 April 1931	Nilambur, IN	daily rain	35.3 mm (1.4 in)	30.7 mm (1.2 in)	10 years	28 of 100 (Routine)
18 April 1931	Orangajuli, IN	daily rain	59.4 mm (2.3 in)	30.2 mm (1.2 in)	20 years	27 of 100 (Routine)
18 April 1931	Polavaram, IN	daily rain	29.2 mm (1.1 in)	25.6 mm (1.0 in)	24 years	26 of 100 (Routine)
18 April 1931	Sanklespur, IN	daily rain	28.7 mm (1.1 in)	19.3 mm (0.8 in)	25 years	26 of 100 (Routine)
18 April 1931	Paterson, US	daily high min	17.8 C (64.0 F)	5.0 C (9.0 F)	34 years	26 of 100 (Routine)
18 April 1931	Yarraloola, AU	daily rain	26.9 mm (1.1 in)	26.9 mm (1.1 in)	29 years	24 of 100 (Routine)
18 April 1931	Brocken, DE	daily snow depth	125.0 cm (49.2 in)	50.0 cm (19.7 in)	6 years	23 of 100 (Routine)
18 April 1931	Gadhinglaj, IN	daily rain	28.7 mm (1.1 in)	26.2 mm (1.0 in)	1 year	23 of 100 (Routine)
18 April 1931	Mazbat(Majbat), IN	daily rain	45.7 mm (1.8 in)	26.1 mm (1.0 in)	2 years	22 of 100 (Routine)
18 April 1931	Junction 4SSW, US	daily rain	43.7 mm (1.7 in)	27.7 mm (1.1 in)	16 years	22 of 100 (Routine)
18 April 1931	Oakbank, CA	daily high min	12.8 C (55.0 F)	6.1 C (11.0 F)	24 years	21 of 100 (Routine)
18 April 1931	Willcox, US	daily rain	8.1 mm (0.32 in)	8.1 mm (0.32 in)	31 years	20 of 100 (Routine)
18 April 1931	Roebourne, AU	daily rain	14.5 mm (0.6 in)	14.5 mm (0.6 in)	41 years	20 of 100 (Routine)
18 April 1931	Mardie, AU	daily rain	10.7 mm (0.4 in)	10.7 mm (0.4 in)	45 years	20 of 100 (Routine)
18 April 1931	Ft Stockton 1, US	daily rain	20.3 mm (0.8 in)	15.2 mm (0.6 in)	24 years	20 of 100 (Routine)
18 April 1931	Urawilkie, AU	daily rain	3.8 mm (0.15 in)	3.8 mm (0.15 in)	49 years	20 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

1793 to 1931

Records set or tied on this calendar date in each year from 1793 to 1931. 1931 had 173 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 1931-04-18: 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 100	143
100 to 200	0
200 to 300	0
300 to 400	0
400 to 500	1