Weather Records on 31 March 1966

845 weather records were set or tied worldwide on 31 March 1966. Highest significance: Sackville, CA.

Key Facts for 31 March 1966

On 31 March 1966, 845 weather records were set or tied at long-record stations worldwide.
686 were record highs and 49 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 140 monthly and 704 daily.
Sackville set a daily record precipitation of 37.3 mm (1.5 in) on 31 March 1966.
Across 155 earlier years (1808 to 2026) the same calendar date averaged 504 records.

Record Map

845 stations

845 station records on 31 March 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 March 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sackville	Canada	Record daily precipitation	37.3 mm (1.5 in)	56 of 100 (Notable)
Moncton	Canada	Record daily snowfall	25.4 cm (10.0 in)	48 of 100 (Notable)
Cambridge	United States	Record high minimum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Mount Uniacke	Canada	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Musquash	Canada	Record daily snowfall	11.4 cm (4.5 in)	39 of 100 (Notable)
Presa Plutarco Elias Calles	Mexico	Record low maximum temperature	16.1 C (61.0 F)	39 of 100 (Notable)
Lodi	United States	Record high maximum temperature	30.6 C (87.1 F)	38 of 100 (Notable)
Big Timber	United States	Record high minimum temperature	12.8 C (55.0 F)	38 of 100 (Notable)
Caliente	United States	Record high maximum temperature	30.0 C (86.0 F)	38 of 100 (Notable)
Durango	United States	Record high maximum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Virginia City	United States	Record high minimum temperature	8.9 C (48.0 F)	37 of 100 (Notable)
Emerson	Canada	Record high minimum temperature	2.2 C (36.0 F)	36 of 100 (Notable)
Thadikarekonam	India	Record daily precipitation	54.7 mm (2.2 in)	36 of 100 (Notable)
Stensele	Sweden	Record snow depth	101.0 cm (39.8 in)	36 of 100 (Notable)
Union Springs 9 S	United States	Record high maximum temperature	33.3 C (91.9 F)	36 of 100 (Notable)
Bishop AP	United States	Record high maximum temperature	30.6 C (87.1 F)	36 of 100 (Notable)
Pomona/Fairplex	United States	Record high maximum temperature	35.0 C (95.0 F)	35 of 100 (Notable)
Ft Lewis	United States	Record high maximum temperature	21.7 C (71.1 F)	35 of 100 (Notable)
Truro Nsac	Canada	Record daily precipitation	41.9 mm (1.6 in)	34 of 100 (Routine)
Fredonia	United States	Record high maximum temperature	27.8 C (82.0 F)	34 of 100 (Routine)
Ojai	United States	Record high maximum temperature	36.7 C (98.1 F)	34 of 100 (Routine)
Panguitch	United States	Record high maximum temperature	23.9 C (75.0 F)	34 of 100 (Routine)
Pommelsbrunn	Germany	Record snow depth	15.0 cm (5.9 in)	33 of 100 (Routine)
Vacaville	United States	Record high maximum temperature	31.7 C (89.1 F)	33 of 100 (Routine)
New England	United States	Record high minimum temperature	6.7 C (44.1 F)	33 of 100 (Routine)
Brandon Cda	Canada	Record high minimum temperature	3.9 C (39.0 F)	32 of 100 (Routine)
Port Hastings	Canada	Record daily precipitation	34.3 mm (1.4 in)	32 of 100 (Routine)
Arhangelsk	Russia	Record high minimum temperature	2.3 C (36.1 F)	32 of 100 (Routine)
Truckee Rs	United States	Record high maximum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Boulder	United States	Record high minimum temperature	13.3 C (55.9 F)	32 of 100 (Routine)
Lakeview 2 NNW	United States	Record high maximum temperature	23.3 C (73.9 F)	32 of 100 (Routine)
Ibapah	United States	Record high maximum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Riverton	United States	Record high maximum temperature	24.4 C (75.9 F)	32 of 100 (Routine)
Ely AP	United States	Record high maximum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Corona	United States	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Redlands	United States	Record high maximum temperature	36.1 C (97.0 F)	31 of 100 (Routine)
San Bernardino F S 226	United States	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Yates Ctr	United States	Record high maximum temperature	31.7 C (89.1 F)	31 of 100 (Routine)
Upper Stewiacke	Canada	Record daily precipitation	44.5 mm (1.8 in)	30 of 100 (Routine)
Kottayam P.W.D	India	Record daily precipitation	57.1 mm (2.2 in)	30 of 100 (Routine)
Noyyatinkara	India	Record daily precipitation	43.2 mm (1.7 in)	30 of 100 (Routine)
Ostrov Kotelnyj	Russia	Record low maximum temperature	-40.0 C (-40.0 F)	30 of 100 (Routine)
Elatma	Russia	Record high minimum temperature	2.8 C (37.0 F)	30 of 100 (Routine)
Snowflake	United States	Record high maximum temperature	27.2 C (81.0 F)	30 of 100 (Routine)
Belle Plaine	United States	Record high maximum temperature	24.4 C (75.9 F)	30 of 100 (Routine)
Abilene	United States	Record high maximum temperature	31.7 C (89.1 F)	30 of 100 (Routine)
Windsor	United States	Record high maximum temperature	29.4 C (84.9 F)	30 of 100 (Routine)
Bozeman Montana State UNIV	United States	Record high maximum temperature	20.6 C (69.1 F)	30 of 100 (Routine)
Virden	Canada	Record high minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
Rexton	Canada	Record daily snowfall	20.3 cm (8.0 in)	29 of 100 (Routine)
Verhojansk	Russia	Record low minimum temperature	-44.8 C (-48.6 F)	29 of 100 (Routine)
Colfax	United States	Record high maximum temperature	28.9 C (84.0 F)	29 of 100 (Routine)
Escondido	United States	Record high maximum temperature	31.7 C (89.1 F)	29 of 100 (Routine)
Redding Fire STN 2	United States	Record high minimum temperature	16.1 C (61.0 F)	29 of 100 (Routine)
Buena Vista 2S	United States	Record high maximum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Stevensville	United States	Record high minimum temperature	9.4 C (48.9 F)	29 of 100 (Routine)
Canary	United States	Record high maximum temperature	25.6 C (78.1 F)	29 of 100 (Routine)
Ipswich	United States	Record high minimum temperature	11.7 C (53.1 F)	29 of 100 (Routine)
Flagstaff AP	United States	Record high maximum temperature	22.8 C (73.0 F)	29 of 100 (Routine)
Healdsburg	United States	Record high maximum temperature	32.2 C (90.0 F)	28 of 100 (Routine)

Counts by Type and Timescale

845 records

Records set or tied on 31 March 1966 by type: Highest daily maximum 438, Lowest daily maximum 27, Highest daily minimum 248, Lowest daily minimum 22, Heaviest daily rainfall 67, Heaviest daily snowfall 33, Deepest snow cover 10.

Records on 31 March 1966 by type
Record type	Records
Highest daily maximum	438
Lowest daily maximum	27
Highest daily minimum	248
Lowest daily minimum	22
Heaviest daily rainfall	67
Heaviest daily snowfall	33
Deepest snow cover	10

Records on 31 March 1966 by timescale: all-time 1, monthly 140, daily 704.

How Much Records Were Beaten By

637 broken records

Margins by which the 637 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 250.0. Ties are not counted.

Top 20 by Significance

31 March 1966

Top 20 records on 31 March 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 March 1966	Sackville, CA	daily rain	37.3 mm (1.5 in)	17.2 mm (0.7 in)	87 years	56 of 100 (Notable)
31 March 1966	Moncton, CA	daily snowfall	25.4 cm (10.0 in)	15.2 cm (6.0 in)	47 years	48 of 100 (Notable)
31 March 1966	Cambridge, US	monthly high min	9.4 C (48.9 F)	1.6 C (2.9 F)	70 years	41 of 100 (Notable)
31 March 1966	Mount Uniacke, CA	daily rain	50.8 mm (2.0 in)	33.3 mm (1.3 in)	28 years	40 of 100 (Notable)
31 March 1966	Musquash, CA	daily snowfall	11.4 cm (4.5 in)	11.4 cm (4.5 in)	41 years	39 of 100 (Notable)
31 March 1966	Presa Plutarco Elias Calles, MX	daily low max	16.1 C (61.0 F)	7.8 C (14.0 F)	31 years	39 of 100 (Notable)
31 March 1966	Lodi, US	monthly high max	30.6 C (87.1 F)	0.6 C (1.1 F)	68 years	38 of 100 (Notable)
31 March 1966	Big Timber, US	monthly high min	12.8 C (55.0 F)	3.9 C (7.0 F)	55 years	38 of 100 (Notable)
31 March 1966	Caliente, US	monthly high max	30.0 C (86.0 F)	2.2 C (4.0 F)	61 years	38 of 100 (Notable)
31 March 1966	Durango, US	monthly high max	25.6 C (78.1 F)	1.7 C (3.1 F)	59 years	37 of 100 (Notable)
31 March 1966	Virginia City, US	monthly high min	8.9 C (48.0 F)	2.8 C (5.0 F)	55 years	37 of 100 (Notable)
31 March 1966	Emerson, CA	daily high min	2.2 C (36.0 F)	1.6 C (2.9 F)	87 years	36 of 100 (Notable)
31 March 1966	Thadikarekonam, IN	daily rain	54.7 mm (2.2 in)	34.4 mm (1.4 in)	29 years	36 of 100 (Notable)
31 March 1966	Stensele, SE	all-time snow depth	101.0 cm (39.8 in)	1.0 cm (0.4 in)	30 years	36 of 100 (Notable)
31 March 1966	Union Springs 9 S, US	monthly high max	33.3 C (91.9 F)	1.1 C (2.0 F)	59 years	36 of 100 (Notable)
31 March 1966	Bishop AP, US	monthly high max	30.6 C (87.1 F)	1.2 C (2.2 F)	58 years	36 of 100 (Notable)
31 March 1966	Pomona/Fairplex, US	daily high max	35.0 C (95.0 F)	4.4 C (7.9 F)	65 years	35 of 100 (Notable)
31 March 1966	Ft Lewis, US	monthly high max	21.7 C (71.1 F)	3.4 C (6.1 F)	45 years	35 of 100 (Notable)
31 March 1966	Truro Nsac, CA	monthly rain	41.9 mm (1.6 in)	4.8 mm (0.19 in)	41 years	34 of 100 (Routine)
31 March 1966	Fredonia, US	monthly high max	27.8 C (82.0 F)	0.6 C (1.1 F)	59 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

1808 to 1966

Records set or tied on this calendar date in each year from 1808 to 1966. 1966 had 845 records.

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

Records on 03-31 in each year
Year	Records
1808	2
1815	2
1843	1
1848	1
1850	1
1854	1
1855	3
1856	2
1859	3
1865	2
1869	1
1872	4
1873	1
1874	1
1876	1
1878	1
1880	2
1881	1
1883	1
1887	2
1889	1
1890	1
1891	1
1892	2
1893	3
1896	3
1897	2
1898	5
1899	3
1900	9
1901	7
1902	3
1903	14
1904	16
1905	29
1906	10
1907	11
1908	5
1909	4
1910	45
1911	24
1912	18
1913	62
1914	16
1915	57
1916	17
1917	52
1918	42
1919	86
1920	65
1921	238
1922	102
1923	459
1924	160
1925	110
1926	306
1927	198
1928	98
1929	323
1930	137
1931	365
1932	360
1933	311
1934	181
1935	310
1936	1,242
1937	258
1938	649
1939	197
1940	697
1941	250
1942	245
1943	794
1944	327
1945	778
1946	897
1947	658
1948	355
1949	452
1950	579
1951	490
1952	382
1953	302
1954	549
1955	286
1956	767
1957	373
1958	414
1959	622
1960	327
1961	525
1962	547
1963	987
1964	1,345
1965	457
1966	845
1967	1,025
1968	504
1969	1,126
1970	945
1971	516
1972	427
1973	755
1974	852
1975	1,032
1976	519
1977	1,021
1978	1,362
1979	722
1980	640
1981	1,060
1982	926
1983	564
1984	532
1985	1,471
1986	1,507
1987	2,256
1988	850
1989	1,335
1990	842
1991	634
1992	747
1993	668
1994	871
1995	940
1996	743
1997	962
1998	2,587
1999	1,100
2000	581
2001	686
2002	861
2003	1,722
2004	1,055
2005	861
2006	1,088
2007	1,150
2008	1,471
2009	927
2010	984
2011	1,020
2012	942
2013	753
2014	631
2015	861
2016	823
2017	1,423
2018	663
2019	544
2020	534
2021	949
2022	683
2023	1,128
2024	488
2025	942
2026	1,275

Download the Data

Data for records on 1966-03-31: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 50	621
50 to 100	9
100 to 150	4
150 to 200	2
200 to 250	1