Weather Records on 20 May 1985

426 weather records were set or tied worldwide on 20 May 1985. Highest significance: Keanae 346, US.

Key Facts for 20 May 1985

On 20 May 1985, 426 weather records were set or tied at long-record stations worldwide.
114 were record highs and 106 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 415 daily.
Keanae 346 set a monthly record daily precipitation of 393.7 mm (15.5 in) on 20 May 1985.
Across 162 earlier years (1802 to 2026) the same calendar date averaged 456 records.

Record Map

426 stations

426 station records on 20 May 1985 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 May 1985: highest significance records shown on the map
Station	Country	Type	Value	Significance
Keanae 346	United States	Record daily precipitation	393.7 mm (15.5 in)	55 of 100 (Notable)
Gympie	Australia	Record daily precipitation	35.2 mm (1.4 in)	52 of 100 (Notable)
Loxahatchee	United States	Record daily precipitation	102.6 mm (4.0 in)	48 of 100 (Notable)
Chatsbury (Maryland)	Australia	Record daily precipitation	30.0 mm (1.2 in)	45 of 100 (Notable)
Karlshuld	Germany	Record daily precipitation	38.2 mm (1.5 in)	45 of 100 (Notable)
Mallersdorf/Niederbayern	Germany	Record daily precipitation	29.4 mm (1.2 in)	45 of 100 (Notable)
Boos	Germany	Record daily precipitation	46.5 mm (1.8 in)	45 of 100 (Notable)
Heidenrod-Mappershain	Germany	Record daily precipitation	51.1 mm (2.0 in)	44 of 100 (Notable)
Roetgen	Germany	Record daily precipitation	46.8 mm (1.8 in)	44 of 100 (Notable)
Weissenburg	Germany	Record daily precipitation	29.6 mm (1.2 in)	41 of 100 (Notable)
Niigata	Japan	Record daily precipitation	72.5 mm (2.9 in)	41 of 100 (Notable)
Hiroshima	Japan	Record daily precipitation	73.0 mm (2.9 in)	41 of 100 (Notable)
Union Hidalgo	Mexico	Record low minimum temperature	17.8 C (64.0 F)	39 of 100 (Notable)
Sheffield	United Kingdom	Record low maximum temperature	8.4 C (47.1 F)	39 of 100 (Notable)
Kenai AP	United States	Record low minimum temperature	-3.9 C (25.0 F)	39 of 100 (Notable)
Taganrog (Lighthouse)	Russia	Record daily precipitation	30.0 mm (1.2 in)	38 of 100 (Notable)
Sidney 1SSE	United States	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Henrietta	United States	Record daily precipitation	56.9 mm (2.2 in)	38 of 100 (Notable)
Fergana	Uzbekistan	Record high minimum temperature	21.8 C (71.2 F)	38 of 100 (Notable)
Mineral-Nye-Vody	Russia	Record daily precipitation	45.0 mm (1.8 in)	36 of 100 (Notable)
Fushiki	Japan	Record daily precipitation	73.5 mm (2.9 in)	35 of 100 (Notable)
Tsuyama	Japan	Record daily precipitation	66.5 mm (2.6 in)	35 of 100 (Notable)
Memmingen	Germany	Record daily precipitation	35.4 mm (1.4 in)	34 of 100 (Routine)
Big Hill (Glen Dusk)	Australia	Record daily precipitation	40.0 mm (1.6 in)	33 of 100 (Routine)
Mascota (Smn)	Mexico	Record low maximum temperature	25.0 C (77.0 F)	33 of 100 (Routine)
Pomona Post Office	Australia	Record daily precipitation	46.0 mm (1.8 in)	32 of 100 (Routine)
Shenyang	China	Record daily precipitation	38.3 mm (1.5 in)	32 of 100 (Routine)
Navojoa	Mexico	Record low maximum temperature	30.6 C (87.1 F)	32 of 100 (Routine)
Sparkman	United States	Record daily precipitation	63.5 mm (2.5 in)	32 of 100 (Routine)
Combolcha	Ethiopia	Record low minimum temperature	6.8 C (44.2 F)	31 of 100 (Routine)
Kobe	Japan	Record daily precipitation	75.5 mm (3.0 in)	31 of 100 (Routine)
Hooker	United States	Record daily precipitation	33.8 mm (1.3 in)	31 of 100 (Routine)
Ringgold	United States	Record daily precipitation	51.3 mm (2.0 in)	31 of 100 (Routine)
Southport Ridgeway Ave	Australia	Record daily precipitation	42.4 mm (1.7 in)	30 of 100 (Routine)
Linjiang	China	Record daily precipitation	43.0 mm (1.7 in)	30 of 100 (Routine)
Aikawa	Japan	Record daily precipitation	59.0 mm (2.3 in)	30 of 100 (Routine)
Okayama	Japan	Record daily precipitation	40.0 mm (1.6 in)	30 of 100 (Routine)
Himeji	Japan	Record daily precipitation	60.0 mm (2.4 in)	30 of 100 (Routine)
Georgievsk	Russia	Record daily precipitation	60.1 mm (2.4 in)	30 of 100 (Routine)
Atlanta 5 WNW	United States	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Tsuruga	Japan	Record daily precipitation	56.5 mm (2.2 in)	28 of 100 (Routine)
Wandering Comparison	Australia	Record high maximum temperature	26.4 C (79.5 F)	27 of 100 (Routine)
Tajima	Japan	Record daily precipitation	39.0 mm (1.5 in)	27 of 100 (Routine)
Kansai Internationa	Japan	Record daily precipitation	54.0 mm (2.1 in)	27 of 100 (Routine)
Rjazan	Russia	Record low minimum temperature	-1.7 C (28.9 F)	27 of 100 (Routine)
Sussex Inlet Bowling Club	Australia	Record daily precipitation	49.4 mm (1.9 in)	26 of 100 (Routine)
Kunming	China	Record daily precipitation	56.0 mm (2.2 in)	26 of 100 (Routine)
Corfu	Greece	Record high maximum temperature	33.8 C (92.8 F)	25 of 100 (Routine)
Hamada	Japan	Record daily precipitation	81.0 mm (3.2 in)	25 of 100 (Routine)
Nome AP	United States	Record low maximum temperature	-2.2 C (28.0 F)	25 of 100 (Routine)
Cape Leeuwin	Australia	Record high minimum temperature	17.5 C (63.5 F)	24 of 100 (Routine)
Narrogin	Australia	Record high maximum temperature	25.6 C (78.1 F)	24 of 100 (Routine)
Nara	Japan	Record daily precipitation	51.5 mm (2.0 in)	24 of 100 (Routine)
La Poza Grande	Mexico	Record low minimum temperature	5.6 C (42.1 F)	24 of 100 (Routine)
La Purisima	Mexico	Record high minimum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Yecora (Smn)	Mexico	Record low maximum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Wateree Dam	United States	Record daily precipitation	26.4 mm (1.0 in)	24 of 100 (Routine)
Germantown Wastewater Utility	United States	Record low minimum temperature	-3.9 C (25.0 F)	24 of 100 (Routine)
Burnett Heads Niell St	Australia	Record daily precipitation	30.0 mm (1.2 in)	23 of 100 (Routine)
Kanazawa	Japan	Record daily precipitation	71.5 mm (2.8 in)	23 of 100 (Routine)

Counts by Type and Timescale

426 records

Records set or tied on 20 May 1985 by type: Highest daily maximum 38, Lowest daily maximum 47, Highest daily minimum 76, Lowest daily minimum 59, Heaviest daily rainfall 203, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 20 May 1985 by type
Record type	Records
Highest daily maximum	38
Lowest daily maximum	47
Highest daily minimum	76
Lowest daily minimum	59
Heaviest daily rainfall	203
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 20 May 1985 by timescale: all-time 0, monthly 11, daily 415.

How Much Records Were Beaten By

352 broken records

Margins by which the 352 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 106.7. Ties are not counted.

Top 20 by Significance

20 May 1985

Top 20 records on 20 May 1985 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 1985	Keanae 346, US	monthly rain	393.7 mm (15.5 in)	106.7 mm (4.2 in)	1 year	55 of 100 (Notable)
20 May 1985	Gympie, AU	daily rain	35.2 mm (1.4 in)	20.5 mm (0.8 in)	92 years	52 of 100 (Notable)
20 May 1985	Loxahatchee, US	daily rain	102.6 mm (4.0 in)	63.5 mm (2.5 in)	26 years	48 of 100 (Notable)
20 May 1985	Chatsbury (Maryland), AU	daily rain	30.0 mm (1.2 in)	12.2 mm (0.5 in)	87 years	45 of 100 (Notable)
20 May 1985	Karlshuld, DE	daily rain	38.2 mm (1.5 in)	25.4 mm (1.0 in)	8 years	45 of 100 (Notable)
20 May 1985	Mallersdorf/Niederbayern, DE	daily rain	29.4 mm (1.2 in)	22.9 mm (0.9 in)	8 years	45 of 100 (Notable)
20 May 1985	Boos, DE	daily rain	46.5 mm (1.8 in)	28.4 mm (1.1 in)	24 years	45 of 100 (Notable)
20 May 1985	Heidenrod-Mappershain, DE	daily rain	51.1 mm (2.0 in)	30.9 mm (1.2 in)	6 years	44 of 100 (Notable)
20 May 1985	Roetgen, DE	daily rain	46.8 mm (1.8 in)	25.0 mm (1.0 in)	24 years	44 of 100 (Notable)
20 May 1985	Weissenburg, DE	daily rain	29.6 mm (1.2 in)	11.2 mm (0.4 in)	44 years	41 of 100 (Notable)
20 May 1985	Niigata, JP	monthly rain	72.5 mm (2.9 in)	22.5 mm (0.9 in)	13 years	41 of 100 (Notable)
20 May 1985	Hiroshima, JP	daily rain	73.0 mm (2.9 in)	46.6 mm (1.8 in)	31 years	41 of 100 (Notable)
20 May 1985	Union Hidalgo, MX	daily low min	17.8 C (64.0 F)	5.0 C (9.0 F)	16 years	39 of 100 (Notable)
20 May 1985	Sheffield, GB	daily low max	8.4 C (47.1 F)	0.2 C (0.4 F)	97 years	39 of 100 (Notable)
20 May 1985	Kenai AP, US	daily low min	-3.9 C (25.0 F)	2.2 C (4.0 F)	82 years	39 of 100 (Notable)
20 May 1985	Taganrog (Lighthouse), RU	daily rain	30.0 mm (1.2 in)	4.7 mm (0.19 in)	79 years	38 of 100 (Notable)
20 May 1985	Sidney 1SSE, US	daily rain	28.4 mm (1.1 in)	5.0 mm (0.20 in)	86 years	38 of 100 (Notable)
20 May 1985	Henrietta, US	daily rain	56.9 mm (2.2 in)	18.0 mm (0.7 in)	68 years	38 of 100 (Notable)
20 May 1985	Fergana, UZ	daily high min	21.8 C (71.2 F)	2.2 C (4.0 F)	74 years	38 of 100 (Notable)
20 May 1985	Mineral-Nye-Vody, RU	daily rain	45.0 mm (1.8 in)	23.0 mm (0.9 in)	7 years	36 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

1802 to 1985

Records set or tied on this calendar date in each year from 1802 to 1985. 1985 had 426 records.

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

Records on 05-20 in each year
Year	Records
1802	1
1803	1
1804	1
1815	1
1825	1
1837	1
1844	1
1845	3
1847	1
1854	1
1858	3
1861	1
1862	1
1865	1
1867	1
1868	2
1870	3
1871	2
1876	2
1877	3
1879	1
1880	2
1884	2
1885	1
1887	2
1889	3
1890	3
1891	5
1892	3
1893	1
1894	6
1895	3
1896	3
1897	3
1898	4
1899	4
1900	1
1901	5
1902	11
1903	19
1904	4
1905	4
1906	22
1907	35
1908	23
1909	10
1910	20
1911	82
1912	20
1913	10
1914	16
1915	42
1916	29
1917	46
1918	92
1919	56
1920	44
1921	234
1922	40
1923	125
1924	189
1925	251
1926	128
1927	118
1928	138
1929	323
1930	129
1931	451
1932	689
1933	449
1934	582
1935	259
1936	207
1937	270
1938	331
1939	266
1940	337
1941	378
1942	337
1943	802
1944	315
1945	498
1946	339
1947	358
1948	514
1949	586
1950	327
1951	288
1952	615
1953	518
1954	822
1955	421
1956	565
1957	728
1958	378
1959	785
1960	612
1961	333
1962	773
1963	732
1964	517
1965	200
1966	416
1967	587
1968	743
1969	885
1970	310
1971	653
1972	612
1973	419
1974	893
1975	1,332
1976	837
1977	553
1978	534
1979	683
1980	751
1981	1,540
1982	554
1983	1,307
1984	867
1985	426
1986	790
1987	1,036
1988	805
1989	764
1990	722
1991	925
1992	1,200
1993	1,208
1994	778
1995	734
1996	1,749
1997	1,106
1998	1,124
1999	673
2000	991
2001	847
2002	2,299
2003	1,201
2004	746
2005	929
2006	1,006
2007	565
2008	999
2009	1,529
2010	1,011
2011	1,117
2012	604
2013	919
2014	629
2015	1,001
2016	692
2017	1,214
2018	460
2019	1,483
2020	784
2021	904
2022	1,643
2023	1,106
2024	478
2025	969
2026	696

Download the Data

Data for records on 1985-05-20: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	320
20 to 40	28
40 to 60	2
60 to 80	1
80 to 100	0
100 to 120	1