Weather Records on 18 May 1971

666 weather records were set or tied worldwide on 18 May 1971. Highest significance: Beatrice, US.

Key Facts for 18 May 1971

On 18 May 1971, 666 weather records were set or tied at long-record stations worldwide.
215 were record highs and 270 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 655 daily.
Beatrice set a daily record precipitation of 58.4 mm (2.3 in) on 18 May 1971.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 441 records.

Record Map

666 stations

666 station records on 18 May 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Beatrice	United States	Record daily precipitation	58.4 mm (2.3 in)	58 of 100 (Notable)
Tara	Russia	Record daily precipitation	45.2 mm (1.8 in)	55 of 100 (Notable)
Stiege	Germany	Record daily precipitation	40.5 mm (1.6 in)	54 of 100 (Notable)
Oakland	United States	Record daily precipitation	69.3 mm (2.7 in)	54 of 100 (Notable)
Glenwood 3SW	United States	Record daily precipitation	73.4 mm (2.9 in)	46 of 100 (Notable)
Monte Vista 2W	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Audubon	United States	Record daily precipitation	54.6 mm (2.1 in)	45 of 100 (Notable)
Vastervik	Sweden	Record high minimum temperature	13.8 C (56.8 F)	43 of 100 (Notable)
Jonkoping	Sweden	Record high minimum temperature	13.2 C (55.8 F)	43 of 100 (Notable)
Petoskey	United States	Record daily precipitation	28.7 mm (1.1 in)	43 of 100 (Notable)
Gore Bay	Canada	Record daily precipitation	32.5 mm (1.3 in)	41 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record high maximum temperature	29.2 C (84.6 F)	40 of 100 (Notable)
Jefferson	United States	Record daily precipitation	54.4 mm (2.1 in)	40 of 100 (Notable)
Bad Schwalbach	Germany	Record daily precipitation	48.5 mm (1.9 in)	39 of 100 (Notable)
Marshalltown	United States	Record daily precipitation	48.5 mm (1.9 in)	39 of 100 (Notable)
Lincoln 1 SE	United States	Record daily precipitation	67.3 mm (2.6 in)	39 of 100 (Notable)
Scott City 13 N	United States	Record daily precipitation	55.1 mm (2.2 in)	38 of 100 (Notable)
Berlin-Dahlem	Germany	Record high minimum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
Visby_Flygplats	Sweden	Record high minimum temperature	14.2 C (57.6 F)	37 of 100 (Notable)
Syracuse	United States	Record daily precipitation	50.8 mm (2.0 in)	37 of 100 (Notable)
Shawano 2SSW	United States	Record daily precipitation	30.7 mm (1.2 in)	37 of 100 (Notable)
Double Island Point Lighthouse	Australia	Record daily precipitation	44.2 mm (1.7 in)	36 of 100 (Notable)
Gorlitz	Germany	Record high maximum temperature	30.0 C (86.0 F)	36 of 100 (Notable)
Flahult	Sweden	Record high minimum temperature	11.8 C (53.2 F)	36 of 100 (Notable)
Dumont	United States	Record daily precipitation	50.5 mm (2.0 in)	36 of 100 (Notable)
Guthrie Ctr	United States	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
E Jordan	United States	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Nebraska City 2NW	United States	Record daily precipitation	47.5 mm (1.9 in)	36 of 100 (Notable)
Weeping Water	United States	Record daily precipitation	69.1 mm (2.7 in)	36 of 100 (Notable)
Cimarron 4 SW	United States	Record daily snowfall	5.1 cm (2.0 in)	36 of 100 (Notable)
Nurnberg	Germany	Record high maximum temperature	30.2 C (86.4 F)	35 of 100 (Notable)
North Lake	United States	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Berlin-Dahlem	Germany	Record high maximum temperature	32.0 C (89.6 F)	34 of 100 (Routine)
Jena Sternwarte	Germany	Record high maximum temperature	32.5 C (90.5 F)	34 of 100 (Routine)
Fichtelberg	Germany	Record high maximum temperature	24.2 C (75.6 F)	34 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record high maximum temperature	30.5 C (86.9 F)	34 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record high maximum temperature	31.0 C (87.8 F)	34 of 100 (Routine)
Waren	Germany	Record high maximum temperature	29.4 C (84.9 F)	34 of 100 (Routine)
Walsenburg 1 NW	United States	Record daily snowfall	10.2 cm (4.0 in)	34 of 100 (Routine)
Illalangi	Australia	Record daily precipitation	40.1 mm (1.6 in)	33 of 100 (Routine)
Chemnitz	Germany	Record high maximum temperature	29.0 C (84.2 F)	33 of 100 (Routine)
Vasteras-Hasslo	Sweden	Record high minimum temperature	13.6 C (56.5 F)	33 of 100 (Routine)
Harlan	United States	Record daily precipitation	39.9 mm (1.6 in)	33 of 100 (Routine)
Fillmore	United States	Record low minimum temperature	-5.0 C (23.0 F)	33 of 100 (Routine)
La Crosse Muni AP	United States	Record daily precipitation	39.4 mm (1.6 in)	33 of 100 (Routine)
Zaragoza Aeropuerto	Spain	Record daily precipitation	32.1 mm (1.3 in)	32 of 100 (Routine)
Orebro	Sweden	Record high minimum temperature	13.4 C (56.1 F)	32 of 100 (Routine)
Rogers City 3 S	United States	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Wisconsin Rapids	United States	Record daily precipitation	33.0 mm (1.3 in)	32 of 100 (Routine)
South Pass City	United States	Record low maximum temperature	1.1 C (34.0 F)	32 of 100 (Routine)
Lindenberg	Germany	Record high maximum temperature	33.3 C (91.9 F)	31 of 100 (Routine)
Elsenburg	South Africa	Record daily precipitation	32.0 mm (1.3 in)	31 of 100 (Routine)
Gunnison 3SW	United States	Record low maximum temperature	5.0 C (41.0 F)	31 of 100 (Routine)
Lake City Exp Farm	United States	Record high minimum temperature	17.8 C (64.0 F)	31 of 100 (Routine)
Angermunde	Germany	Record high maximum temperature	33.5 C (92.3 F)	30 of 100 (Routine)
Cottbus	Germany	Record high maximum temperature	33.3 C (91.9 F)	30 of 100 (Routine)
Weimar	Germany	Record daily precipitation	31.4 mm (1.2 in)	30 of 100 (Routine)
Canon City	United States	Record low minimum temperature	0.0 C (32.0 F)	30 of 100 (Routine)
Caliente	United States	Record low minimum temperature	-1.7 C (28.9 F)	30 of 100 (Routine)
Eureka	United States	Record low minimum temperature	-5.0 C (23.0 F)	30 of 100 (Routine)

Counts by Type and Timescale

666 records

Records set or tied on 18 May 1971 by type: Highest daily maximum 88, Lowest daily maximum 112, Highest daily minimum 127, Lowest daily minimum 158, Heaviest daily rainfall 156, Heaviest daily snowfall 21, Deepest snow cover 4.

Records on 18 May 1971 by type
Record type	Records
Highest daily maximum	88
Lowest daily maximum	112
Highest daily minimum	127
Lowest daily minimum	158
Heaviest daily rainfall	156
Heaviest daily snowfall	21
Deepest snow cover	4

Records on 18 May 1971 by timescale: all-time 0, monthly 11, daily 655.

How Much Records Were Beaten By

553 broken records

Margins by which the 553 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

18 May 1971

Top 20 records on 18 May 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1971	Beatrice, US	daily rain	58.4 mm (2.3 in)	36.8 mm (1.4 in)	61 years	58 of 100 (Notable)
18 May 1971	Tara, RU	monthly rain	45.2 mm (1.8 in)	19.2 mm (0.8 in)	8 years	55 of 100 (Notable)
18 May 1971	Stiege, DE	daily rain	40.5 mm (1.6 in)	27.7 mm (1.1 in)	33 years	54 of 100 (Notable)
18 May 1971	Oakland, US	daily rain	69.3 mm (2.7 in)	41.9 mm (1.6 in)	32 years	54 of 100 (Notable)
18 May 1971	Glenwood 3SW, US	daily rain	73.4 mm (2.9 in)	56.1 mm (2.2 in)	10 years	46 of 100 (Notable)
18 May 1971	Monte Vista 2W, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	77 years	45 of 100 (Notable)
18 May 1971	Audubon, US	daily rain	54.6 mm (2.1 in)	35.3 mm (1.4 in)	30 years	45 of 100 (Notable)
18 May 1971	Vastervik, SE	daily high min	13.8 C (56.8 F)	3.8 C (6.8 F)	75 years	43 of 100 (Notable)
18 May 1971	Jonkoping, SE	daily high min	13.2 C (55.8 F)	2.7 C (4.9 F)	86 years	43 of 100 (Notable)
18 May 1971	Petoskey, US	daily rain	28.7 mm (1.1 in)	16.0 mm (0.6 in)	62 years	43 of 100 (Notable)
18 May 1971	Gore Bay, CA	daily rain	32.5 mm (1.3 in)	12.9 mm (0.5 in)	50 years	41 of 100 (Notable)
18 May 1971	Praha-Klementinum, CZ	daily high max	29.2 C (84.6 F)	0.3 C (0.5 F)	107 years	40 of 100 (Notable)
18 May 1971	Jefferson, US	daily rain	54.4 mm (2.1 in)	32.0 mm (1.3 in)	30 years	40 of 100 (Notable)
18 May 1971	Bad Schwalbach, DE	daily rain	48.5 mm (1.9 in)	18.5 mm (0.7 in)	10 years	39 of 100 (Notable)
18 May 1971	Marshalltown, US	daily rain	48.5 mm (1.9 in)	21.8 mm (0.9 in)	52 years	39 of 100 (Notable)
18 May 1971	Lincoln 1 SE, US	daily rain	67.3 mm (2.6 in)	27.9 mm (1.1 in)	36 years	39 of 100 (Notable)
18 May 1971	Scott City 13 N, US	daily rain	55.1 mm (2.2 in)	34.8 mm (1.4 in)	16 years	38 of 100 (Notable)
18 May 1971	Berlin-Dahlem, DE	daily high min	17.2 C (63.0 F)	0.4 C (0.7 F)	92 years	37 of 100 (Notable)
18 May 1971	Visby_Flygplats, SE	daily high min	14.2 C (57.6 F)	2.7 C (4.9 F)	64 years	37 of 100 (Notable)
18 May 1971	Syracuse, US	daily rain	50.8 mm (2.0 in)	25.7 mm (1.0 in)	40 years	37 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

1796 to 1971

Records set or tied on this calendar date in each year from 1796 to 1971. 1971 had 666 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 1971-05-18: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	544
50 to 100	4
100 to 150	4
150 to 200	0
200 to 250	1