Weather Records on 12 May 1983

1,281 weather records were set or tied worldwide on 12 May 1983. Highest significance: Regina Int'l A, CA.

Key Facts for 12 May 1983

On 12 May 1983, 1,281 weather records were set or tied at long-record stations worldwide.
201 were record highs and 423 were record lows, counting maximum and minimum temperature.
By timescale, 16 were all-time records, 131 monthly and 1,134 daily.
Regina Int'l A set a daily record snowfall of 18.6 cm (7.3 in) on 12 May 1983.
Across 164 earlier years (1814 to 2026) the same calendar date averaged 448 records.

Record Map

1,281 stations

1,281 station records on 12 May 1983 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 May 1983: highest significance records shown on the map
Station	Country	Type	Value	Significance
Regina Int'l A	Canada	Record daily snowfall	18.6 cm (7.3 in)	79 of 100 (Major)
Moosomin	Canada	Record daily snowfall	27.8 cm (10.9 in)	72 of 100 (Major)
Dickinson Exp STN	United States	Record daily snowfall	20.3 cm (8.0 in)	70 of 100 (Major)
Killdeer 8 NW	United States	Record daily snowfall	25.4 cm (10.0 in)	70 of 100 (Major)
Hettinger	United States	Record daily snowfall	20.3 cm (8.0 in)	68 of 100 (Major)
Lustre 4 NNW	United States	Record daily snowfall	38.1 cm (15.0 in)	64 of 100 (Major)
Yorkton A	Canada	Record daily snowfall	19.2 cm (7.6 in)	63 of 100 (Major)
Ridgeway 1 S	United States	Record daily snowfall	22.9 cm (9.0 in)	62 of 100 (Major)
Mott	United States	Record daily precipitation	61.0 mm (2.4 in)	62 of 100 (Major)
Green Island	Australia	Record daily precipitation	250.0 mm (9.8 in)	61 of 100 (Major)
Chinook	United States	Record daily precipitation	38.1 mm (1.5 in)	61 of 100 (Major)
Columbus	United States	Record daily snowfall	25.4 cm (10.0 in)	60 of 100 (Major)
Rapelje	United States	Record daily snowfall	25.4 cm (10.0 in)	59 of 100 (Notable)
Strasbourg	Canada	Record daily snowfall	14.0 cm (5.5 in)	56 of 100 (Notable)
Brusett 3 E	United States	Record daily snowfall	30.5 cm (12.0 in)	56 of 100 (Notable)
Williston Sloulin Fld	United States	Record daily snowfall	30.0 cm (11.8 in)	55 of 100 (Notable)
Culbertson	United States	Record snow depth	25.4 cm (10.0 in)	54 of 100 (Notable)
Crosby	United States	Record daily snowfall	12.7 cm (5.0 in)	54 of 100 (Notable)
Mott	United States	Record daily snowfall	12.7 cm (5.0 in)	54 of 100 (Notable)
Pierson	Canada	Record daily snowfall	11.0 cm (4.3 in)	53 of 100 (Notable)
Waskada	Canada	Record daily snowfall	15.0 cm (5.9 in)	53 of 100 (Notable)
Pormpuraaw Township	Australia	Record daily precipitation	29.4 mm (1.2 in)	52 of 100 (Notable)
Ormiston	Canada	Record daily snowfall	30.0 cm (11.8 in)	52 of 100 (Notable)
Volborg	United States	Record daily snowfall	30.5 cm (12.0 in)	52 of 100 (Notable)
Hamiota	Canada	Record daily snowfall	12.0 cm (4.7 in)	51 of 100 (Notable)
Yingkou	China	Record daily precipitation	43.4 mm (1.7 in)	51 of 100 (Notable)
Ralph 1 N	United States	Record daily snowfall	17.8 cm (7.0 in)	51 of 100 (Notable)
Logan Utah St UNIV	United States	Record daily snowfall	11.4 cm (4.5 in)	51 of 100 (Notable)
Kipling	Canada	Record daily snowfall	41.4 cm (16.3 in)	50 of 100 (Notable)
Gravelbourg	Canada	Record daily snowfall	26.0 cm (10.2 in)	50 of 100 (Notable)
Swan River	Canada	Record daily snowfall	22.4 cm (8.8 in)	50 of 100 (Notable)
Crow Agency	United States	Record snow depth	25.4 cm (10.0 in)	50 of 100 (Notable)
Poplar 2 E	United States	Record daily precipitation	31.8 mm (1.3 in)	50 of 100 (Notable)
New Salem 5NW	United States	Record daily snowfall	10.2 cm (4.0 in)	50 of 100 (Notable)
Yarrabah Comm Council	Australia	Record daily precipitation	79.0 mm (3.1 in)	49 of 100 (Notable)
Tooma	Estonia	Record daily precipitation	33.3 mm (1.3 in)	49 of 100 (Notable)
Hettinger	United States	Record snow depth	22.9 cm (9.0 in)	49 of 100 (Notable)
Westhope	United States	Record daily precipitation	35.6 mm (1.4 in)	49 of 100 (Notable)
Lusk 2 SW	United States	Record daily snowfall	12.7 cm (5.0 in)	49 of 100 (Notable)
Jonesboro 3 SSE	United States	Record daily precipitation	69.9 mm (2.8 in)	48 of 100 (Notable)
Camp Crook	United States	Record daily snowfall	22.9 cm (9.0 in)	48 of 100 (Notable)
Baker	United States	Record daily snowfall	33.0 cm (13.0 in)	47 of 100 (Notable)
Opheim 12 SSE	United States	Record daily precipitation	31.0 mm (1.2 in)	47 of 100 (Notable)
Newell	United States	Record daily snowfall	15.2 cm (6.0 in)	47 of 100 (Notable)
Brusett 3 E	United States	Record snow depth	30.5 cm (12.0 in)	46 of 100 (Notable)
Busby	United States	Record snow depth	17.8 cm (7.0 in)	46 of 100 (Notable)
Harb	United States	Record daily precipitation	36.8 mm (1.4 in)	46 of 100 (Notable)
Westhope	United States	Record daily snowfall	7.6 cm (3.0 in)	46 of 100 (Notable)
Harding 3 SE	United States	Record daily snowfall	22.9 cm (9.0 in)	46 of 100 (Notable)
Silver Lake Brighton	United States	Record daily snowfall	38.1 cm (15.0 in)	46 of 100 (Notable)
Cape Tribulation Store	Australia	Record daily precipitation	142.0 mm (5.6 in)	45 of 100 (Notable)
Russell	Canada	Record daily snowfall	13.6 cm (5.4 in)	45 of 100 (Notable)
Tongliao	China	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Dalatangi	Iceland	Record daily precipitation	64.0 mm (2.5 in)	45 of 100 (Notable)
Roseau	United States	Record daily precipitation	26.2 mm (1.0 in)	45 of 100 (Notable)
Diversion Dam	United States	Record daily snowfall	15.2 cm (6.0 in)	45 of 100 (Notable)
Kemmerer 2N	United States	Record snow depth	27.9 cm (11.0 in)	45 of 100 (Notable)
Low Isles Lighthouse	Australia	Record daily precipitation	55.2 mm (2.2 in)	44 of 100 (Notable)
Hysham	United States	Record daily snowfall	15.2 cm (6.0 in)	44 of 100 (Notable)
Lumsden	Canada	Record daily snowfall	9.8 cm (3.9 in)	43 of 100 (Notable)

Counts by Type and Timescale

1,281 records

Records set or tied on 12 May 1983 by type: Highest daily maximum 105, Lowest daily maximum 228, Highest daily minimum 96, Lowest daily minimum 195, Heaviest daily rainfall 349, Heaviest daily snowfall 178, Deepest snow cover 130.

Records on 12 May 1983 by type
Record type	Records
Highest daily maximum	105
Lowest daily maximum	228
Highest daily minimum	96
Lowest daily minimum	195
Heaviest daily rainfall	349
Heaviest daily snowfall	178
Deepest snow cover	130

Records on 12 May 1983 by timescale: all-time 16, monthly 131, daily 1,134.

How Much Records Were Beaten By

1,057 broken records

Margins by which the 1,057 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 508.0. Ties are not counted.

Top 20 by Significance

12 May 1983

Top 20 records on 12 May 1983 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 1983	Regina Int'l A, CA	daily snowfall	18.6 cm (7.3 in)	18.6 cm (7.3 in)	98 years	79 of 100 (Major)
12 May 1983	Moosomin, CA	daily snowfall	27.8 cm (10.9 in)	27.8 cm (10.9 in)	82 years	72 of 100 (Major)
12 May 1983	Dickinson Exp STN, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	80 years	70 of 100 (Major)
12 May 1983	Killdeer 8 NW, US	monthly snowfall	25.4 cm (10.0 in)	12.7 cm (5.0 in)	89 years	70 of 100 (Major)
12 May 1983	Hettinger, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	72 years	68 of 100 (Major)
12 May 1983	Lustre 4 NNW, US	monthly snowfall	38.1 cm (15.0 in)	22.9 cm (9.0 in)	27 years	64 of 100 (Major)
12 May 1983	Yorkton A, CA	monthly snowfall	19.2 cm (7.6 in)	10.1 cm (4.0 in)	30 years	63 of 100 (Major)
12 May 1983	Ridgeway 1 S, US	monthly snowfall	22.9 cm (9.0 in)	22.9 cm (9.0 in)	30 years	62 of 100 (Major)
12 May 1983	Mott, US	daily rain	61.0 mm (2.4 in)	41.7 mm (1.6 in)	52 years	62 of 100 (Major)
12 May 1983	Green Island, AU	monthly rain	250.0 mm (9.8 in)	148.9 mm (5.9 in)	27 years	61 of 100 (Major)
12 May 1983	Chinook, US	daily rain	38.1 mm (1.5 in)	23.6 mm (0.9 in)	76 years	61 of 100 (Major)
12 May 1983	Columbus, US	daily snowfall	25.4 cm (10.0 in)	25.4 cm (10.0 in)	52 years	60 of 100 (Major)
12 May 1983	Rapelje, US	daily snowfall	25.4 cm (10.0 in)	20.3 cm (8.0 in)	66 years	59 of 100 (Notable)
12 May 1983	Strasbourg, CA	daily snowfall	14.0 cm (5.5 in)	14.0 cm (5.5 in)	72 years	56 of 100 (Notable)
12 May 1983	Brusett 3 E, US	monthly snowfall	30.5 cm (12.0 in)	15.3 cm (6.0 in)	31 years	56 of 100 (Notable)
12 May 1983	Williston Sloulin Fld, US	all-time snowfall	30.0 cm (11.8 in)	4.3 cm (1.7 in)	63 years	55 of 100 (Notable)
12 May 1983	Culbertson, US	monthly snow depth	25.4 cm (10.0 in)	20.3 cm (8.0 in)	56 years	54 of 100 (Notable)
12 May 1983	Crosby, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	76 years	54 of 100 (Notable)
12 May 1983	Mott, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	74 years	54 of 100 (Notable)
12 May 1983	Pierson, CA	daily snowfall	11.0 cm (4.3 in)	11.0 cm (4.3 in)	77 years	53 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

1814 to 1983

Records set or tied on this calendar date in each year from 1814 to 1983. 1983 had 1,281 records.

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

Records on 05-12 in each year
Year	Records
1814	2
1823	1
1825	1
1827	1
1834	1
1837	1
1838	1
1845	1
1847	1
1848	1
1849	2
1851	1
1855	2
1860	2
1862	2
1863	1
1867	1
1868	1
1872	2
1874	1
1877	1
1878	1
1879	1
1881	4
1882	5
1884	3
1885	2
1886	3
1887	1
1888	1
1889	1
1890	1
1891	4
1894	1
1895	1
1896	1
1897	7
1898	3
1900	3
1901	6
1902	5
1903	7
1904	11
1905	10
1906	20
1907	53
1908	12
1909	4
1910	9
1911	37
1912	46
1913	6
1914	36
1915	50
1916	42
1917	54
1918	113
1919	42
1920	19
1921	64
1922	43
1923	109
1924	245
1925	275
1926	121
1927	167
1928	192
1929	172
1930	500
1931	350
1932	199
1933	476
1934	293
1935	404
1936	329
1937	214
1938	394
1939	233
1940	440
1941	568
1942	418
1943	803
1944	368
1945	389
1946	653
1947	286
1948	390
1949	414
1950	283
1951	427
1952	711
1953	891
1954	305
1955	265
1956	1,568
1957	454
1958	714
1959	740
1960	1,583
1961	381
1962	713
1963	777
1964	401
1965	196
1966	909
1967	810
1968	890
1969	506
1970	698
1971	668
1972	641
1973	393
1974	702
1975	418
1976	541
1977	855
1978	802
1979	763
1980	684
1981	855
1982	763
1983	1,281
1984	887
1985	1,199
1986	473
1987	1,295
1988	619
1989	856
1990	617
1991	1,177
1992	1,022
1993	1,208
1994	738
1995	1,190
1996	1,420
1997	921
1998	1,576
1999	881
2000	1,486
2001	1,015
2002	1,027
2003	861
2004	1,054
2005	1,369
2006	797
2007	630
2008	858
2009	687
2010	1,250
2011	1,119
2012	660
2013	689
2014	949
2015	958
2016	421
2017	529
2018	819
2019	784
2020	1,338
2021	712
2022	1,930
2023	429
2024	447
2025	940
2026	1,110

Download the Data

Data for records on 1983-05-12: 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 100	947
100 to 200	85
200 to 300	22
300 to 400	1
400 to 500	0
500 to 600	2