Weather Records on 6 May 1981

489 weather records were set or tied worldwide on 6 May 1981. Highest significance: Calgary Int'l A, CA.

Key Facts for 6 May 1981

On 6 May 1981, 489 weather records were set or tied at long-record stations worldwide.
165 were record highs and 128 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 6 monthly and 481 daily.
Calgary Int'l A set a daily record precipitation of 51.8 mm (2.0 in) on 6 May 1981.
Across 158 earlier years (1795 to 2026) the same calendar date averaged 453 records.

Record Map

489 stations

489 station records on 6 May 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 6 May 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Calgary Int'l A	Canada	Record daily precipitation	51.8 mm (2.0 in)	71 of 100 (Major)
Natashquan A	Canada	Record daily precipitation	45.8 mm (1.8 in)	61 of 100 (Major)
Cwebe	South Africa	Record daily precipitation	64.5 mm (2.5 in)	54 of 100 (Notable)
Calgary Int'l A	Canada	Record daily snowfall	48.4 cm (19.1 in)	53 of 100 (Notable)
Niznij Novgorod	Russia	Record daily precipitation	33.0 mm (1.3 in)	52 of 100 (Notable)
Briceni	Ukraine	Record daily precipitation	41.6 mm (1.6 in)	50 of 100 (Notable)
Sogndal - Selseng	Norway	Record snow depth	117.0 cm (46.1 in)	49 of 100 (Notable)
Rome 2 NW	United States	Record daily snowfall	12.7 cm (5.0 in)	47 of 100 (Notable)
Zapaluta	Mexico	Record daily precipitation	43.4 mm (1.7 in)	45 of 100 (Notable)
Ph Wainiha 1115	United States	Record daily precipitation	99.6 mm (3.9 in)	43 of 100 (Notable)
Wilhelmina Rise 721	United States	Record daily precipitation	42.2 mm (1.7 in)	41 of 100 (Notable)
Santo Domingo	Mexico	Record daily precipitation	160.3 mm (6.3 in)	40 of 100 (Notable)
Houlton	United States	Record high minimum temperature	13.3 C (55.9 F)	40 of 100 (Notable)
Bitter Lakes Wl Refuge	United States	Record daily precipitation	31.0 mm (1.2 in)	40 of 100 (Notable)
Yakutat AP	United States	Record high maximum temperature	21.1 C (70.0 F)	39 of 100 (Notable)
Gleichen	Canada	Record daily precipitation	25.8 mm (1.0 in)	38 of 100 (Notable)
Merced	United States	Record high minimum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Elsinore	United States	Record high minimum temperature	16.1 C (61.0 F)	36 of 100 (Notable)
Irkutsk	Russia	Record high minimum temperature	9.2 C (48.6 F)	35 of 100 (Notable)
Dannemora	United States	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Miramichi A	Canada	Record daily precipitation	39.6 mm (1.6 in)	32 of 100 (Routine)
East London -Signal STN	South Africa	Record daily precipitation	35.0 mm (1.4 in)	32 of 100 (Routine)
Bay Minette	United States	Record daily precipitation	54.6 mm (2.1 in)	32 of 100 (Routine)
Port Washington	United States	Record low maximum temperature	5.6 C (42.1 F)	32 of 100 (Routine)
Kalihi Rsch Site 777	United States	Record daily precipitation	68.1 mm (2.7 in)	32 of 100 (Routine)
Colac (Shire Office)	Australia	Record daily precipitation	27.6 mm (1.1 in)	31 of 100 (Routine)
Red Deer A	Canada	Record daily precipitation	47.0 mm (1.9 in)	31 of 100 (Routine)
Daniels Harbour	Canada	Record daily precipitation	27.8 mm (1.1 in)	31 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record high maximum temperature	18.2 C (64.8 F)	31 of 100 (Routine)
Gaspe	Canada	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Ex Hacienda San Diego	Mexico	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Danner	United States	Record daily snowfall	5.1 cm (2.0 in)	30 of 100 (Routine)
Puhi 1013	United States	Record daily precipitation	33.8 mm (1.3 in)	30 of 100 (Routine)
Chilliwack	Canada	Record low maximum temperature	11.0 C (51.8 F)	29 of 100 (Routine)
Snake Rvr	United States	Record high minimum temperature	0.0 C (32.0 F)	29 of 100 (Routine)
South Nietta	Australia	Record daily precipitation	34.0 mm (1.3 in)	28 of 100 (Routine)
Gagetown 2	Canada	Record daily precipitation	28.0 mm (1.1 in)	28 of 100 (Routine)
Chernivtsi	Ukraine	Record daily precipitation	26.9 mm (1.1 in)	28 of 100 (Routine)
Fairhope 2 NE	United States	Record daily precipitation	52.1 mm (2.1 in)	28 of 100 (Routine)
Kenton	United States	Record high minimum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Fredericton Cda	Canada	Record high minimum temperature	14.0 C (57.2 F)	27 of 100 (Routine)
Gagetown 2	Canada	Record high minimum temperature	12.5 C (54.5 F)	27 of 100 (Routine)
Musquash	Canada	Record high minimum temperature	10.5 C (50.9 F)	27 of 100 (Routine)
St George	Canada	Record high minimum temperature	10.0 C (50.0 F)	27 of 100 (Routine)
Sandheads	India	Record daily precipitation	89.9 mm (3.5 in)	27 of 100 (Routine)
Chita	Russia	Record high minimum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Chacon	United States	Record daily precipitation	26.2 mm (1.0 in)	27 of 100 (Routine)
Kilauea 1134	United States	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Doaktown	Canada	Record daily precipitation	37.6 mm (1.5 in)	26 of 100 (Routine)
Nepisiguit Falls	Canada	Record daily precipitation	34.0 mm (1.3 in)	26 of 100 (Routine)
Collegeville	Canada	Record high minimum temperature	9.5 C (49.1 F)	26 of 100 (Routine)
Notinsila (Bos)	South Africa	Record daily precipitation	34.5 mm (1.4 in)	26 of 100 (Routine)
Bay Minette	United States	Record low maximum temperature	20.6 C (69.1 F)	26 of 100 (Routine)
Greencastle 1 W	United States	Record daily precipitation	34.3 mm (1.4 in)	26 of 100 (Routine)
St Elzear de Bonaventure	Canada	Record daily precipitation	32.0 mm (1.3 in)	25 of 100 (Routine)
Moncton	Canada	Record high minimum temperature	11.5 C (52.7 F)	25 of 100 (Routine)
Eagle	United States	Record high maximum temperature	20.0 C (68.0 F)	25 of 100 (Routine)
Cordova AP	United States	Record high maximum temperature	21.1 C (70.0 F)	25 of 100 (Routine)
Forrest State Forest	Australia	Record daily precipitation	29.0 mm (1.1 in)	24 of 100 (Routine)
Cowichan Bay Cherry Point	Canada	Record low maximum temperature	10.0 C (50.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

489 records

Records set or tied on 6 May 1981 by type: Highest daily maximum 56, Lowest daily maximum 62, Highest daily minimum 109, Lowest daily minimum 66, Heaviest daily rainfall 185, Heaviest daily snowfall 7, Deepest snow cover 4.

Records on 6 May 1981 by type
Record type	Records
Highest daily maximum	56
Lowest daily maximum	62
Highest daily minimum	109
Lowest daily minimum	66
Heaviest daily rainfall	185
Heaviest daily snowfall	7
Deepest snow cover	4

Records on 6 May 1981 by timescale: all-time 2, monthly 6, daily 481.

How Much Records Were Beaten By

412 broken records

Margins by which the 412 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 420.0. Ties are not counted.

Top 20 by Significance

6 May 1981

Top 20 records on 6 May 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 May 1981	Calgary Int'l A, CA	daily rain	51.8 mm (2.0 in)	36.1 mm (1.4 in)	70 years	71 of 100 (Major)
6 May 1981	Natashquan A, CA	daily rain	45.8 mm (1.8 in)	33.9 mm (1.3 in)	56 years	61 of 100 (Major)
6 May 1981	Cwebe, ZA	daily rain	64.5 mm (2.5 in)	49.3 mm (1.9 in)	79 years	54 of 100 (Notable)
6 May 1981	Calgary Int'l A, CA	all-time snowfall	48.4 cm (19.1 in)	0.1 cm (0.0 in)	77 years	53 of 100 (Notable)
6 May 1981	Niznij Novgorod, RU	daily rain	33.0 mm (1.3 in)	9.9 mm (0.39 in)	80 years	52 of 100 (Notable)
6 May 1981	Briceni, UA	daily rain	41.6 mm (1.6 in)	35.7 mm (1.4 in)	26 years	50 of 100 (Notable)
6 May 1981	Sogndal - Selseng, NO	daily snow depth	117.0 cm (46.1 in)	42.0 cm (16.5 in)	78 years	49 of 100 (Notable)
6 May 1981	Rome 2 NW, US	monthly snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	30 years	47 of 100 (Notable)
6 May 1981	Zapaluta, MX	daily rain	43.4 mm (1.7 in)	40.6 mm (1.6 in)	20 years	45 of 100 (Notable)
6 May 1981	Ph Wainiha 1115, US	daily rain	99.6 mm (3.9 in)	64.0 mm (2.5 in)	18 years	43 of 100 (Notable)
6 May 1981	Wilhelmina Rise 721, US	daily rain	42.2 mm (1.7 in)	27.5 mm (1.1 in)	18 years	41 of 100 (Notable)
6 May 1981	Santo Domingo, MX	daily rain	160.3 mm (6.3 in)	71.9 mm (2.8 in)	35 years	40 of 100 (Notable)
6 May 1981	Houlton, US	daily high min	13.3 C (55.9 F)	4.4 C (7.9 F)	75 years	40 of 100 (Notable)
6 May 1981	Bitter Lakes Wl Refuge, US	daily rain	31.0 mm (1.2 in)	29.2 mm (1.1 in)	4 years	40 of 100 (Notable)
6 May 1981	Yakutat AP, US	daily high max	21.1 C (70.0 F)	5.5 C (9.9 F)	56 years	39 of 100 (Notable)
6 May 1981	Gleichen, CA	daily rain	25.8 mm (1.0 in)	6.7 mm (0.26 in)	70 years	38 of 100 (Notable)
6 May 1981	Merced, US	daily high min	17.8 C (64.0 F)	3.4 C (6.1 F)	64 years	38 of 100 (Notable)
6 May 1981	Elsinore, US	daily high min	16.1 C (61.0 F)	2.8 C (5.0 F)	66 years	36 of 100 (Notable)
6 May 1981	Irkutsk, RU	daily high min	9.2 C (48.6 F)	2.1 C (3.8 F)	70 years	35 of 100 (Notable)
6 May 1981	Dannemora, US	daily rain	30.0 mm (1.2 in)	13.0 mm (0.5 in)	34 years	34 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

1795 to 1981

Records set or tied on this calendar date in each year from 1795 to 1981. 1981 had 489 records.

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

Records on 05-06 in each year
Year	Records
1795	1
1805	1
1825	1
1836	1
1845	2
1850	1
1851	1
1852	1
1856	1
1857	2
1861	2
1862	2
1864	2
1865	1
1872	1
1877	3
1880	2
1883	1
1885	4
1886	2
1887	1
1888	1
1889	4
1890	4
1891	3
1892	3
1893	1
1895	3
1896	1
1897	5
1898	17
1899	3
1900	8
1901	3
1902	8
1903	9
1904	12
1905	18
1906	14
1907	11
1908	18
1909	19
1910	23
1911	14
1912	20
1913	47
1914	30
1915	32
1916	51
1917	197
1918	43
1919	63
1920	42
1921	39
1922	87
1923	126
1924	95
1925	225
1926	178
1927	133
1928	106
1929	225
1930	581
1931	378
1932	302
1933	336
1934	640
1935	319
1936	430
1937	172
1938	310
1939	185
1940	243
1941	325
1942	309
1943	375
1944	879
1945	318
1946	260
1947	613
1948	384
1949	917
1950	610
1951	292
1952	496
1953	635
1954	551
1955	422
1956	559
1957	644
1958	615
1959	463
1960	781
1961	655
1962	301
1963	623
1964	823
1965	624
1966	950
1967	697
1968	890
1969	695
1970	710
1971	459
1972	499
1973	499
1974	806
1975	925
1976	644
1977	896
1978	899
1979	1,122
1980	574
1981	489
1982	800
1983	554
1984	846
1985	549
1986	1,228
1987	1,049
1988	919
1989	1,814
1990	1,220
1991	1,028
1992	1,486
1993	795
1994	591
1995	961
1996	1,578
1997	1,127
1998	1,160
1999	1,198
2000	1,357
2001	767
2002	979
2003	1,596
2004	1,490
2005	826
2006	663
2007	1,061
2008	412
2009	732
2010	1,187
2011	604
2012	1,007
2013	1,024
2014	612
2015	589
2016	808
2017	659
2018	454
2019	462
2020	578
2021	517
2022	736
2023	559
2024	841
2025	732
2026	796

Download the Data

Data for records on 1981-05-06: 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 2026-10-15 (15 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	410
100 to 200	1
200 to 300	0
300 to 400	0
400 to 500	1