Weather Records on 23 February 1977

1,274 weather records were set or tied worldwide on 23 February 1977. Highest significance: Castlewood, US.

Key Facts for 23 February 1977

On 23 February 1977, 1,274 weather records were set or tied at long-record stations worldwide.
589 were record highs and 48 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 54 monthly and 1,220 daily.
Castlewood set a monthly record daily precipitation of 40.6 mm (1.6 in) on 23 February 1977.
Across 156 earlier years (1794 to 2026) the same calendar date averaged 549 records.

Record Map

1,274 stations

1,274 station records on 23 February 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 February 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Castlewood	United States	Record daily precipitation	40.6 mm (1.6 in)	82 of 100 (Exceptional)
De Smet	United States	Record daily precipitation	58.7 mm (2.3 in)	78 of 100 (Major)
Huron Rgnl AP	United States	Record daily precipitation	37.1 mm (1.5 in)	69 of 100 (Major)
Audley National Park Bottom St	Australia	Record daily precipitation	165.2 mm (6.5 in)	68 of 100 (Major)
West Leichhardt Station	Australia	Record daily precipitation	73.6 mm (2.9 in)	66 of 100 (Major)
De Smet	United States	Record daily snowfall	25.4 cm (10.0 in)	66 of 100 (Major)
Lawn Hill	Australia	Record daily precipitation	92.5 mm (3.6 in)	65 of 100 (Major)
Academy 2NE	United States	Record daily precipitation	56.4 mm (2.2 in)	65 of 100 (Major)
Milton Post Office	Australia	Record daily precipitation	187.0 mm (7.4 in)	62 of 100 (Major)
Artichoke Lake 1 E	United States	Record daily precipitation	37.1 mm (1.5 in)	62 of 100 (Major)
Yerranderie (Private Town)	Australia	Record daily precipitation	67.0 mm (2.6 in)	61 of 100 (Major)
Randwick Bowling Club	Australia	Record daily precipitation	85.4 mm (3.4 in)	61 of 100 (Major)
Jamberoo (Lorna)	Australia	Record daily precipitation	223.4 mm (8.8 in)	61 of 100 (Major)
Picton Council Depot	Australia	Record daily precipitation	116.0 mm (4.6 in)	61 of 100 (Major)
Albion Park Post Office	Australia	Record daily precipitation	152.6 mm (6.0 in)	60 of 100 (Major)
Bungonia (Inverary Park)	Australia	Record daily precipitation	72.8 mm (2.9 in)	60 of 100 (Major)
Helensburgh (Sawan St)	Australia	Record daily precipitation	164.8 mm (6.5 in)	59 of 100 (Notable)
Jervis Bay (Point Perpendicula	Australia	Record daily precipitation	136.0 mm (5.4 in)	59 of 100 (Notable)
Farmington 3NW	United States	Record daily precipitation	25.9 mm (1.0 in)	59 of 100 (Notable)
Madison Wwtp	United States	Record daily precipitation	52.1 mm (2.1 in)	59 of 100 (Notable)
Robertson (Caalong Street)	Australia	Record daily precipitation	198.0 mm (7.8 in)	58 of 100 (Notable)
Yalwal	Australia	Record daily precipitation	160.0 mm (6.3 in)	58 of 100 (Notable)
High River	Canada	Record daily precipitation	27.9 mm (1.1 in)	58 of 100 (Notable)
High River	Canada	Record daily snowfall	27.9 cm (11.0 in)	58 of 100 (Notable)
Wessington Springs	United States	Record daily precipitation	34.8 mm (1.4 in)	58 of 100 (Notable)
Aberdeen	United States	Record daily snowfall	23.4 cm (9.2 in)	58 of 100 (Notable)
Mittagong (Beatrice Street)	Australia	Record daily precipitation	100.2 mm (3.9 in)	56 of 100 (Notable)
Woonona (Popes Rd)	Australia	Record daily precipitation	178.8 mm (7.0 in)	56 of 100 (Notable)
Majors Creek (the Old School)	Australia	Record daily precipitation	118.1 mm (4.6 in)	56 of 100 (Notable)
Marulan (George St)	Australia	Record daily precipitation	82.4 mm (3.2 in)	56 of 100 (Notable)
Halsey 2 W	United States	Record daily precipitation	25.4 mm (1.0 in)	56 of 100 (Notable)
Bundanoon Bowling Club	Australia	Record daily precipitation	91.6 mm (3.6 in)	55 of 100 (Notable)
Mount Fairy (Merigan)	Australia	Record daily precipitation	93.6 mm (3.7 in)	55 of 100 (Notable)
Nowra Treatment Works	Australia	Record daily precipitation	127.0 mm (5.0 in)	54 of 100 (Notable)
Ortonville	United States	Record daily precipitation	37.6 mm (1.5 in)	54 of 100 (Notable)
Miranda (Blackwood St)	Australia	Record daily precipitation	123.8 mm (4.9 in)	53 of 100 (Notable)
Dapto West (Stane Dykes)	Australia	Record daily precipitation	166.4 mm (6.6 in)	53 of 100 (Notable)
Braidwood (Krawarree)	Australia	Record daily precipitation	114.0 mm (4.5 in)	52 of 100 (Notable)
Dryden	Canada	Record daily snowfall	19.1 cm (7.5 in)	52 of 100 (Notable)
Mazelspoort Dam	South Africa	Record daily precipitation	58.0 mm (2.3 in)	52 of 100 (Notable)
Dawson	United States	Record daily precipitation	38.1 mm (1.5 in)	52 of 100 (Notable)
Howard	United States	Record daily precipitation	27.9 mm (1.1 in)	52 of 100 (Notable)
Midwest	United States	Record daily snowfall	45.7 cm (18.0 in)	52 of 100 (Notable)
Kalkpoort	South Africa	Record daily precipitation	69.5 mm (2.7 in)	51 of 100 (Notable)
Thorhult	United States	Record daily precipitation	36.1 mm (1.4 in)	51 of 100 (Notable)
Madison Dane Co Rgnl AP	United States	Record daily precipitation	29.2 mm (1.1 in)	51 of 100 (Notable)
Cronulla South Bowling Club	Australia	Record daily precipitation	109.2 mm (4.3 in)	50 of 100 (Notable)
Wollondilly (Bullio)	Australia	Record daily precipitation	72.8 mm (2.9 in)	50 of 100 (Notable)
Ainsworth	United States	Record daily precipitation	37.6 mm (1.5 in)	50 of 100 (Notable)
Bryant	United States	Record daily precipitation	33.8 mm (1.3 in)	50 of 100 (Notable)
Kadoka	United States	Record daily precipitation	52.1 mm (2.1 in)	50 of 100 (Notable)
Wood	United States	Record daily snowfall	35.6 cm (14.0 in)	50 of 100 (Notable)
Camden (Brownlow Hill)	Australia	Record daily precipitation	110.0 mm (4.3 in)	49 of 100 (Notable)
Slavsko	Ukraine	Record daily precipitation	29.8 mm (1.2 in)	49 of 100 (Notable)
Nigniy_Studeniy	Ukraine	Record daily precipitation	36.8 mm (1.4 in)	49 of 100 (Notable)
Watertown Rgnl AP	United States	Record daily precipitation	39.1 mm (1.5 in)	49 of 100 (Notable)
Flora Downs	Australia	Record daily precipitation	34.8 mm (1.4 in)	48 of 100 (Notable)
Roseberth Station	Australia	Record daily precipitation	76.0 mm (3.0 in)	48 of 100 (Notable)
Springwood Bowling Club	Australia	Record daily precipitation	84.0 mm (3.3 in)	48 of 100 (Notable)
Lake Bathurst (Somerton)	Australia	Record daily precipitation	88.6 mm (3.5 in)	48 of 100 (Notable)

Counts by Type and Timescale

1,274 records

Records set or tied on 23 February 1977 by type: Highest daily maximum 214, Lowest daily maximum 27, Highest daily minimum 375, Lowest daily minimum 21, Heaviest daily rainfall 562, Heaviest daily snowfall 68, Deepest snow cover 7.

Records on 23 February 1977 by type
Record type	Records
Highest daily maximum	214
Lowest daily maximum	27
Highest daily minimum	375
Lowest daily minimum	21
Heaviest daily rainfall	562
Heaviest daily snowfall	68
Deepest snow cover	7

Records on 23 February 1977 by timescale: all-time 0, monthly 54, daily 1,220.

How Much Records Were Beaten By

1,123 broken records

Margins by which the 1,123 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 432.0. Ties are not counted.

Top 20 by Significance

23 February 1977

Top 20 records on 23 February 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 February 1977	Castlewood, US	monthly rain	40.6 mm (1.6 in)	15.2 mm (0.6 in)	81 years	82 of 100 (Exceptional)
23 February 1977	De Smet, US	monthly rain	58.7 mm (2.3 in)	20.6 mm (0.8 in)	68 years	78 of 100 (Major)
23 February 1977	Huron Rgnl AP, US	daily rain	37.1 mm (1.5 in)	30.5 mm (1.2 in)	68 years	69 of 100 (Major)
23 February 1977	Audley National Park Bottom St, AU	daily rain	165.2 mm (6.5 in)	98.9 mm (3.9 in)	73 years	68 of 100 (Major)
23 February 1977	West Leichhardt Station, AU	daily rain	73.6 mm (2.9 in)	69.0 mm (2.7 in)	71 years	66 of 100 (Major)
23 February 1977	De Smet, US	daily snowfall	25.4 cm (10.0 in)	20.3 cm (8.0 in)	68 years	66 of 100 (Major)
23 February 1977	Lawn Hill, AU	daily rain	92.5 mm (3.6 in)	73.4 mm (2.9 in)	60 years	65 of 100 (Major)
23 February 1977	Academy 2NE, US	monthly rain	56.4 mm (2.2 in)	20.6 mm (0.8 in)	24 years	65 of 100 (Major)
23 February 1977	Milton Post Office, AU	daily rain	187.0 mm (7.4 in)	102.4 mm (4.0 in)	43 years	62 of 100 (Major)
23 February 1977	Artichoke Lake 1 E, US	monthly rain	37.1 mm (1.5 in)	18.0 mm (0.7 in)	23 years	62 of 100 (Major)
23 February 1977	Yerranderie (Private Town), AU	daily rain	67.0 mm (2.6 in)	54.6 mm (2.1 in)	49 years	61 of 100 (Major)
23 February 1977	Randwick Bowling Club, AU	daily rain	85.4 mm (3.4 in)	50.9 mm (2.0 in)	85 years	61 of 100 (Major)
23 February 1977	Jamberoo (Lorna), AU	daily rain	223.4 mm (8.8 in)	132.2 mm (5.2 in)	43 years	61 of 100 (Major)
23 February 1977	Picton Council Depot, AU	daily rain	116.0 mm (4.6 in)	76.4 mm (3.0 in)	43 years	61 of 100 (Major)
23 February 1977	Albion Park Post Office, AU	daily rain	152.6 mm (6.0 in)	105.1 mm (4.1 in)	43 years	60 of 100 (Major)
23 February 1977	Bungonia (Inverary Park), AU	daily rain	72.8 mm (2.9 in)	49.9 mm (2.0 in)	39 years	60 of 100 (Major)
23 February 1977	Helensburgh (Sawan St), AU	daily rain	164.8 mm (6.5 in)	86.3 mm (3.4 in)	73 years	59 of 100 (Notable)
23 February 1977	Jervis Bay (Point Perpendicula, AU	daily rain	136.0 mm (5.4 in)	71.0 mm (2.8 in)	43 years	59 of 100 (Notable)
23 February 1977	Farmington 3NW, US	daily rain	25.9 mm (1.0 in)	15.7 mm (0.6 in)	68 years	59 of 100 (Notable)
23 February 1977	Madison Wwtp, US	monthly rain	52.1 mm (2.1 in)	22.4 mm (0.9 in)	28 years	59 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

1794 to 1977

Records set or tied on this calendar date in each year from 1794 to 1977. 1977 had 1,274 records.

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

Records on 02-23 in each year
Year	Records
1794	2
1802	2
1804	2
1810	1
1814	4
1815	1
1839	1
1846	2
1849	1
1850	1
1855	1
1867	1
1868	1
1871	1
1873	1
1874	1
1875	3
1879	3
1884	1
1886	2
1887	1
1888	5
1889	2
1891	1
1892	2
1895	1
1896	1
1897	1
1898	8
1899	1
1900	5
1901	9
1902	3
1903	17
1904	13
1905	12
1906	21
1907	31
1908	19
1909	27
1910	35
1911	23
1912	46
1913	11
1914	37
1915	58
1916	80
1917	100
1918	31
1919	49
1920	44
1921	74
1922	158
1923	42
1924	156
1925	264
1926	63
1927	298
1928	199
1929	179
1930	690
1931	209
1932	318
1933	321
1934	725
1935	214
1936	430
1937	172
1938	224
1939	616
1940	274
1941	362
1942	355
1943	518
1944	430
1945	335
1946	346
1947	718
1948	450
1949	406
1950	517
1951	397
1952	414
1953	450
1954	654
1955	880
1956	599
1957	807
1958	958
1959	357
1960	802
1961	677
1962	659
1963	1,003
1964	594
1965	640
1966	614
1967	689
1968	1,038
1969	1,010
1970	422
1971	741
1972	843
1973	353
1974	562
1975	1,764
1976	737
1977	1,274
1978	1,263
1979	1,374
1980	520
1981	1,234
1982	972
1983	790
1984	942
1985	1,913
1986	955
1987	916
1988	412
1989	1,413
1990	2,157
1991	712
1992	760
1993	1,477
1994	1,452
1995	1,011
1996	1,603
1997	989
1998	1,401
1999	773
2000	1,701
2001	956
2002	1,228
2003	1,326
2004	802
2005	702
2006	581
2007	883
2008	914
2009	858
2010	1,440
2011	829
2012	770
2013	792
2014	502
2015	1,830
2016	660
2017	1,946
2018	1,728
2019	1,246
2020	794
2021	929
2022	2,595
2023	2,768
2024	373
2025	984
2026	951

Download the Data

Data for records on 1977-02-23: 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	1,103
100 to 200	16
200 to 300	3
300 to 400	0
400 to 500	1