Weather Records on 2 May 1977

579 weather records were set or tied worldwide on 2 May 1977. Highest significance: Archer, US.

Key Facts for 2 May 1977

On 2 May 1977, 579 weather records were set or tied at long-record stations worldwide.
223 were record highs and 51 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 18 monthly and 560 daily.
Archer set a daily record precipitation of 44.2 mm (1.7 in) on 2 May 1977.
Across 162 earlier years (1795 to 2026) the same calendar date averaged 461 records.

Record Map

579 stations

579 station records on 2 May 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 2 May 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Archer	United States	Record daily precipitation	44.2 mm (1.7 in)	63 of 100 (Major)
Akron 4 E	United States	Record daily precipitation	45.7 mm (1.8 in)	58 of 100 (Notable)
Ft Morgan	United States	Record daily precipitation	40.9 mm (1.6 in)	57 of 100 (Notable)
Oliver Stp	Canada	Record daily precipitation	42.9 mm (1.7 in)	51 of 100 (Notable)
Philipstown (Tnk)	South Africa	Record daily precipitation	45.0 mm (1.8 in)	50 of 100 (Notable)
Falun	Sweden	Record daily precipitation	36.7 mm (1.4 in)	50 of 100 (Notable)
Nguiu	Australia	Record daily precipitation	94.4 mm (3.7 in)	48 of 100 (Notable)
Clinton	United States	Record daily precipitation	60.2 mm (2.4 in)	47 of 100 (Notable)
Grootfontein	South Africa	Record daily precipitation	29.5 mm (1.2 in)	45 of 100 (Notable)
Wolmada	South Africa	Record daily precipitation	25.8 mm (1.0 in)	44 of 100 (Notable)
Horken	Sweden	Record daily precipitation	33.7 mm (1.3 in)	43 of 100 (Notable)
Galeana (Smn)	Mexico	Record high minimum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Dontsa	South Africa	Record daily precipitation	45.0 mm (1.8 in)	42 of 100 (Notable)
Lakin	United States	Record daily precipitation	45.7 mm (1.8 in)	42 of 100 (Notable)
Hvar	Croatia	Record high minimum temperature	16.8 C (62.2 F)	38 of 100 (Notable)
Velikie Luki	Russia	Record high minimum temperature	14.1 C (57.4 F)	38 of 100 (Notable)
Rooiwal	South Africa	Record daily precipitation	27.0 mm (1.1 in)	38 of 100 (Notable)
Sterling	United States	Record daily precipitation	39.4 mm (1.6 in)	38 of 100 (Notable)
Columbus	United States	Record daily precipitation	64.3 mm (2.5 in)	38 of 100 (Notable)
Fergana	Uzbekistan	Record high minimum temperature	20.9 C (69.6 F)	38 of 100 (Notable)
Kisinev	Moldova	Record high minimum temperature	14.8 C (58.6 F)	37 of 100 (Notable)
Laryak	Russia	Record daily precipitation	30.0 mm (1.2 in)	37 of 100 (Notable)
Velikie Luki	Russia	Record high maximum temperature	28.0 C (82.4 F)	37 of 100 (Notable)
Scheurfontein	South Africa	Record daily precipitation	29.5 mm (1.2 in)	37 of 100 (Notable)
Grangesberg	Sweden	Record daily precipitation	37.2 mm (1.5 in)	37 of 100 (Notable)
Paskenta Rs	United States	Record daily precipitation	27.4 mm (1.1 in)	37 of 100 (Notable)
Elk City 4 W	United States	Record daily precipitation	76.2 mm (3.0 in)	37 of 100 (Notable)
Mt Sterling	United States	Record daily precipitation	44.5 mm (1.8 in)	36 of 100 (Notable)
Minsk	Belarus	Record high minimum temperature	11.5 C (52.7 F)	35 of 100 (Notable)
Elandsfontein	South Africa	Record daily precipitation	31.5 mm (1.2 in)	35 of 100 (Notable)
Bethel AP	United States	Record snow depth	38.1 cm (15.0 in)	35 of 100 (Notable)
Tartu	Estonia	Record high maximum temperature	28.2 C (82.8 F)	33 of 100 (Routine)
Niznij Novgorod	Russia	Record high minimum temperature	15.1 C (59.2 F)	33 of 100 (Routine)
Glen Roy	South Africa	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)
Donkerhoek	South Africa	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)
McCall	United States	Record high minimum temperature	6.1 C (43.0 F)	33 of 100 (Routine)
Oswego 1 N	United States	Record daily precipitation	74.4 mm (2.9 in)	33 of 100 (Routine)
Siauliai	Lithuania	Record high minimum temperature	16.0 C (60.8 F)	32 of 100 (Routine)
Hammon 3 SSW	United States	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Villiersdorp	South Africa	Record daily precipitation	33.5 mm (1.3 in)	31 of 100 (Routine)
Fulton	United States	Record daily precipitation	53.3 mm (2.1 in)	31 of 100 (Routine)
Winthrop 1 WSW	United States	Record high minimum temperature	11.1 C (52.0 F)	31 of 100 (Routine)
Vilnius	Lithuania	Record high maximum temperature	30.2 C (86.4 F)	30 of 100 (Routine)
Piaxtla	Mexico	Record low minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)
Leroy 5 WSW	United States	Record daily precipitation	34.5 mm (1.4 in)	30 of 100 (Routine)
Weatherford	United States	Record daily precipitation	31.2 mm (1.2 in)	30 of 100 (Routine)
Tashkent	Uzbekistan	Record high minimum temperature	17.7 C (63.9 F)	30 of 100 (Routine)
Serra Negra Do Norte	Brazil	Record daily precipitation	50.0 mm (2.0 in)	29 of 100 (Routine)
Shawnigan Lake	Canada	Record high minimum temperature	10.6 C (51.1 F)	29 of 100 (Routine)
Nanaimo Departure Bay	Canada	Record high minimum temperature	12.8 C (55.0 F)	29 of 100 (Routine)
Baia Mare	Romania	Record high minimum temperature	16.7 C (62.1 F)	29 of 100 (Routine)
Sveg	Sweden	Record snow depth	55.0 cm (21.7 in)	29 of 100 (Routine)
Paradis 7 S	United States	Record daily precipitation	75.7 mm (3.0 in)	29 of 100 (Routine)
Serra Caiada	Brazil	Record daily precipitation	50.0 mm (2.0 in)	28 of 100 (Routine)
Timbauba	Brazil	Record daily precipitation	103.0 mm (4.1 in)	28 of 100 (Routine)
Kostroma	Russia	Record high minimum temperature	13.2 C (55.8 F)	28 of 100 (Routine)
Barguzin	Russia	Record low maximum temperature	0.4 C (32.7 F)	28 of 100 (Routine)
Groenvlei	South Africa	Record daily precipitation	25.0 mm (1.0 in)	28 of 100 (Routine)
Mora	United States	Record low minimum temperature	-6.1 C (21.0 F)	28 of 100 (Routine)
Itaporanga (Misericordia)	Brazil	Record daily precipitation	60.4 mm (2.4 in)	27 of 100 (Routine)

Counts by Type and Timescale

579 records

Records set or tied on 2 May 1977 by type: Highest daily maximum 70, Lowest daily maximum 14, Highest daily minimum 153, Lowest daily minimum 37, Heaviest daily rainfall 298, Heaviest daily snowfall 1, Deepest snow cover 6.

Records on 2 May 1977 by type
Record type	Records
Highest daily maximum	70
Lowest daily maximum	14
Highest daily minimum	153
Lowest daily minimum	37
Heaviest daily rainfall	298
Heaviest daily snowfall	1
Deepest snow cover	6

Records on 2 May 1977 by timescale: all-time 1, monthly 18, daily 560.

How Much Records Were Beaten By

511 broken records

Margins by which the 511 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 330.0. Ties are not counted.

Top 20 by Significance

2 May 1977

Top 20 records on 2 May 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 May 1977	Archer, US	daily rain	44.2 mm (1.7 in)	30.2 mm (1.2 in)	60 years	63 of 100 (Major)
2 May 1977	Akron 4 E, US	daily rain	45.7 mm (1.8 in)	40.1 mm (1.6 in)	55 years	58 of 100 (Notable)
2 May 1977	Ft Morgan, US	daily rain	40.9 mm (1.6 in)	24.4 mm (1.0 in)	72 years	57 of 100 (Notable)
2 May 1977	Oliver Stp, CA	monthly rain	42.9 mm (1.7 in)	13.2 mm (0.5 in)	22 years	51 of 100 (Notable)
2 May 1977	Philipstown (Tnk), ZA	daily rain	45.0 mm (1.8 in)	13.2 mm (0.5 in)	89 years	50 of 100 (Notable)
2 May 1977	Falun, SE	daily rain	36.7 mm (1.4 in)	16.6 mm (0.7 in)	19 years	50 of 100 (Notable)
2 May 1977	Nguiu, AU	daily rain	94.4 mm (3.7 in)	73.8 mm (2.9 in)	8 years	48 of 100 (Notable)
2 May 1977	Clinton, US	daily rain	60.2 mm (2.4 in)	35.1 mm (1.4 in)	67 years	47 of 100 (Notable)
2 May 1977	Grootfontein, ZA	daily rain	29.5 mm (1.2 in)	21.6 mm (0.9 in)	27 years	45 of 100 (Notable)
2 May 1977	Wolmada, ZA	daily rain	25.8 mm (1.0 in)	18.9 mm (0.7 in)	52 years	44 of 100 (Notable)
2 May 1977	Horken, SE	daily rain	33.7 mm (1.3 in)	15.2 mm (0.6 in)	19 years	43 of 100 (Notable)
2 May 1977	Galeana (Smn), MX	daily high min	21.7 C (71.1 F)	6.7 C (12.1 F)	50 years	42 of 100 (Notable)
2 May 1977	Dontsa, ZA	daily rain	45.0 mm (1.8 in)	25.2 mm (1.0 in)	51 years	42 of 100 (Notable)
2 May 1977	Lakin, US	daily rain	45.7 mm (1.8 in)	15.7 mm (0.6 in)	70 years	42 of 100 (Notable)
2 May 1977	Hvar, HR	daily high min	16.8 C (62.2 F)	0.5 C (0.9 F)	88 years	38 of 100 (Notable)
2 May 1977	Velikie Luki, RU	daily high min	14.1 C (57.4 F)	2.8 C (5.0 F)	79 years	38 of 100 (Notable)
2 May 1977	Rooiwal, ZA	daily rain	27.0 mm (1.1 in)	13.5 mm (0.5 in)	52 years	38 of 100 (Notable)
2 May 1977	Sterling, US	daily rain	39.4 mm (1.6 in)	18.1 mm (0.7 in)	43 years	38 of 100 (Notable)
2 May 1977	Columbus, US	daily rain	64.3 mm (2.5 in)	20.1 mm (0.8 in)	56 years	38 of 100 (Notable)
2 May 1977	Fergana, UZ	daily high min	20.9 C (69.6 F)	4.5 C (8.1 F)	50 years	38 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

1795 to 1977

Records set or tied on this calendar date in each year from 1795 to 1977. 1977 had 579 records.

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

Records on 05-02 in each year
Year	Records
1795	1
1804	1
1814	1
1835	1
1836	2
1845	1
1846	1
1849	1
1850	2
1852	1
1866	2
1868	2
1874	1
1875	1
1876	1
1877	2
1878	2
1879	1
1881	2
1883	1
1884	2
1885	1
1886	3
1887	1
1888	1
1889	2
1890	1
1891	4
1892	5
1893	1
1894	4
1895	1
1896	4
1897	2
1898	6
1899	9
1900	1
1901	6
1902	5
1903	14
1904	25
1905	19
1906	15
1907	22
1908	11
1909	48
1910	21
1911	34
1912	26
1913	132
1914	33
1915	25
1916	21
1917	52
1918	21
1919	52
1920	73
1921	31
1922	219
1923	58
1924	57
1925	123
1926	323
1927	125
1928	164
1929	336
1930	366
1931	237
1932	113
1933	584
1934	337
1935	509
1936	305
1937	278
1938	411
1939	273
1940	587
1941	510
1942	600
1943	542
1944	727
1945	522
1946	321
1947	794
1948	874
1949	561
1950	651
1951	509
1952	445
1953	1,009
1954	1,317
1955	977
1956	1,261
1957	371
1958	380
1959	1,030
1960	571
1961	670
1962	396
1963	685
1964	656
1965	314
1966	779
1967	1,123
1968	440
1969	338
1970	670
1971	421
1972	336
1973	711
1974	456
1975	337
1976	660
1977	579
1978	976
1979	743
1980	449
1981	1,009
1982	537
1983	1,808
1984	712
1985	1,062
1986	631
1987	763
1988	1,142
1989	1,009
1990	1,567
1991	587
1992	1,014
1993	1,017
1994	937
1995	1,166
1996	1,076
1997	750
1998	1,043
1999	838
2000	931
2001	1,256
2002	1,263
2003	787
2004	1,344
2005	1,785
2006	577
2007	867
2008	963
2009	898
2010	1,629
2011	936
2012	1,103
2013	1,486
2014	696
2015	582
2016	583
2017	601
2018	768
2019	622
2020	798
2021	572
2022	440
2023	951
2024	880
2025	569
2026	765

Download the Data

Data for records on 1977-05-02: 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	506
50 to 100	2
100 to 150	0
150 to 200	2
200 to 250	0
250 to 300	0
300 to 350	1