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Weather Records on 21 March 1912

36 weather records were set or tied worldwide on 21 March 1912. Highest significance: Port Dover, CA.

Key Facts for 21 March 1912

  • On 21 March 1912, 36 weather records were set or tied at long-record stations worldwide.
  • 0 were record highs and 6 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 36 daily.
  • Port Dover set a daily record snowfall of 14.5 cm (5.7 in) on 21 March 1912.
  • Across 156 earlier years (1797 to 2025) the same calendar date averaged 472 records.

Record Map

36 stations
Weather records on 21 March 1912 36 station records on 21 March 1912 are marked on the map, coloured by record type.
36 station records on 21 March 1912 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 March 1912: highest significance records shown on the map
StationCountryTypeValueSignificance
Port DoverCanadaRecord daily snowfall14.5 cm (5.7 in)32 of 100 (Routine)
Maitland WestAustraliaRecord daily precipitation29.2 mm (1.1 in)23 of 100 (Routine)
Svenska HogarnaSwedenRecord daily precipitation21.7 mm (0.9 in)20 of 100 (Routine)
Visby_FlygplatsSwedenRecord daily precipitation20.6 mm (0.8 in)20 of 100 (Routine)
HoburgSwedenRecord daily precipitation19.8 mm (0.8 in)20 of 100 (Routine)
Gotska SandonSwedenRecord daily precipitation13.6 mm (0.5 in)20 of 100 (Routine)
UccleBelgiumRecord daily precipitation14.6 mm (0.6 in)20 of 100 (Routine)
Groningen-1NetherlandsRecord daily precipitation10.0 mm (0.4 in)20 of 100 (Routine)
ScheveningenNetherlandsRecord daily precipitation9.1 mm (0.36 in)20 of 100 (Routine)
Port DoverCanadaRecord daily precipitation14.5 mm (0.6 in)20 of 100 (Routine)
RoermondNetherlandsRecord daily precipitation11.4 mm (0.4 in)20 of 100 (Routine)
HoofddorpNetherlandsRecord daily precipitation8.3 mm (0.33 in)20 of 100 (Routine)
HelmondNetherlandsRecord daily precipitation8.7 mm (0.34 in)20 of 100 (Routine)
Botany No.1 DamAustraliaRecord daily precipitation25.7 mm (1.0 in)20 of 100 (Routine)
StockholmSwedenRecord daily precipitation7.4 mm (0.29 in)19 of 100 (Routine)
VestervigDenmarkRecord daily precipitation7.8 mm (0.31 in)18 of 100 (Routine)
Newcastle Nobbys Signal StatioAustraliaRecord daily precipitation48.8 mm (1.9 in)17 of 100 (Routine)
WestminsterCanadaRecord daily snowfall10.2 cm (4.0 in)16 of 100 (Routine)
PortlandUnited StatesRecord low maximum temperature-7.2 C (19.0 F)15 of 100 (Routine)
GeorgetownCanadaRecord daily snowfall8.4 cm (3.3 in)14 of 100 (Routine)
WinterswijkNetherlandsRecord daily precipitation7.8 mm (0.31 in)14 of 100 (Routine)
Velikie LukiRussiaRecord daily precipitation4.0 mm (0.16 in)14 of 100 (Routine)
CottamCanadaRecord daily snowfall5.1 cm (2.0 in)11 of 100 (Routine)
FalsterboSwedenRecord daily precipitation7.3 mm (0.29 in)11 of 100 (Routine)
Dubuque RiverUnited StatesRecord low maximum temperature-3.9 C (25.0 F)11 of 100 (Routine)
Putten (Gld)NetherlandsRecord daily precipitation6.3 mm (0.25 in)9 of 100 (Routine)
Huron Rgnl APUnited StatesRecord low minimum temperature-19.4 C (-2.9 F)9 of 100 (Routine)
Nelson Bay (Nelson Head)AustraliaRecord daily precipitation22.6 mm (0.9 in)8 of 100 (Routine)
WellandCanadaRecord daily snowfall7.6 cm (3.0 in)8 of 100 (Routine)
TurkestanKazakhstanRecord daily precipitation4.1 mm (0.16 in)8 of 100 (Routine)
Olympia Priest Pt ParkUnited StatesRecord low minimum temperature-4.4 C (24.1 F)8 of 100 (Routine)
Orskar_ASwedenRecord daily precipitation2.6 mm (0.10 in)6 of 100 (Routine)
KaresuandoSwedenRecord daily precipitation0.4 mm (0.02 in)5 of 100 (Routine)
Windsor RiversideCanadaRecord daily snowfall5.1 cm (2.0 in)3 of 100 (Routine)
San Diego WboUnited StatesRecord low maximum temperature13.3 C (55.9 F)2 of 100 (Routine)
Port ArthurCanadaRecord low maximum temperature-7.8 C (18.0 F)1 of 100 (Routine)

Counts by Type and Timescale

36 records
Records on 21 March 1912 by type Records set or tied on 21 March 1912 by type: Lowest daily maximum 4, Lowest daily minimum 2, Heaviest daily rainfall 24, Heaviest daily snowfall 6. 0102030Highest daily maximum: 0Lowest daily maximum: 4Highest daily minimum: 0Lowest daily minimum: 2Heaviest daily rainfall: 24Heaviest daily snowfall: 6Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 March 1912 by type: Lowest daily maximum 4, Lowest daily minimum 2, Heaviest daily rainfall 24, Heaviest daily snowfall 6.
Records on 21 March 1912 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum4
Highest daily minimum0
Lowest daily minimum2
Heaviest daily rainfall24
Heaviest daily snowfall6
Deepest snow cover0
Records on 21 March 1912 by timescale Records on 21 March 1912 by timescale: all-time 0, monthly 0, daily 36. 010203040all-time: 0monthly: 0daily: 36all-timemonthlydaily
Records on 21 March 1912 by timescale: all-time 0, monthly 0, daily 36.
Records on 21 March 1912 by timescale
TimescaleRecords
all-time0
monthly0
daily36

How Much Records Were Beaten By

33 broken records
Histogram of margins by which records were beaten on 21 March 1912 Margins by which the 33 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 89.0. Ties are not counted. 0102030400 to 20: 3120 to 40: 140 to 60: 060 to 80: 080 to 100: 10 to 2020 to 4040 to 6060 to 8080 to 100
Margins by which the 33 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 89.0. Ties are not counted.
Histogram of margins by which records were beaten on 21 March 1912
MarginRecords
0 to 2031
20 to 401
40 to 600
60 to 800
80 to 1001

Top 20 by Significance

21 March 1912
Top 20 records on 21 March 1912 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 March 1912Port Dover, CAdaily snowfall14.5 cm (5.7 in)8.9 cm (3.5 in)34 years32 of 100 (Routine)
21 March 1912Maitland West, AUdaily rain29.2 mm (1.1 in)6.1 mm (0.24 in)51 years23 of 100 (Routine)
21 March 1912Svenska Hogarna, SEdaily rain21.7 mm (0.9 in)18.8 mm (0.7 in)10 years20 of 100 (Routine)
21 March 1912Visby_Flygplats, SEdaily rain20.6 mm (0.8 in)10.3 mm (0.4 in)6 years20 of 100 (Routine)
21 March 1912Hoburg, SEdaily rain19.8 mm (0.8 in)11.5 mm (0.5 in)12 years20 of 100 (Routine)
21 March 1912Gotska Sandon, SEdaily rain13.6 mm (0.5 in)8.5 mm (0.33 in)10 years20 of 100 (Routine)
21 March 1912Uccle, BEdaily rain14.6 mm (0.6 in)8.3 mm (0.33 in)27 years20 of 100 (Routine)
21 March 1912Groningen-1, NLdaily rain10.0 mm (0.4 in)2.9 mm (0.11 in)51 years20 of 100 (Routine)
21 March 1912Scheveningen, NLdaily rain9.1 mm (0.36 in)4.6 mm (0.18 in)30 years20 of 100 (Routine)
21 March 1912Port Dover, CAdaily rain14.5 mm (0.6 in)5.4 mm (0.21 in)34 years20 of 100 (Routine)
21 March 1912Roermond, NLdaily rain11.4 mm (0.4 in)6.4 mm (0.25 in)3 years20 of 100 (Routine)
21 March 1912Hoofddorp, NLdaily rain8.3 mm (0.33 in)4.4 mm (0.17 in)16 years20 of 100 (Routine)
21 March 1912Helmond, NLdaily rain8.7 mm (0.34 in)3.6 mm (0.14 in)29 years20 of 100 (Routine)
21 March 1912Botany No.1 Dam, AUdaily rain25.7 mm (1.0 in)7.4 mm (0.29 in)41 years20 of 100 (Routine)
21 March 1912Stockholm, SEdaily rain7.4 mm (0.29 in)3.6 mm (0.14 in)8 years19 of 100 (Routine)
21 March 1912Vestervig, DKdaily rain7.8 mm (0.31 in)1.3 mm (0.05 in)36 years18 of 100 (Routine)
21 March 1912Newcastle Nobbys Signal Statio, AUdaily rain48.8 mm (1.9 in)2.3 mm (0.09 in)41 years17 of 100 (Routine)
21 March 1912Westminster, CAdaily snowfall10.2 cm (4.0 in)2.6 cm (1.0 in)23 years16 of 100 (Routine)
21 March 1912Portland, USdaily low max-7.2 C (19.0 F)2.2 C (4.0 F)26 years15 of 100 (Routine)
21 March 1912Georgetown, CAdaily snowfall8.4 cm (3.3 in)1.3 cm (0.5 in)29 years14 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

1797 to 1912
Records on 03-21 in each year Records set or tied on this calendar date in each year from 1797 to 1912. 1912 had 36 records. 01,0002,0003,0001797: 21805: 11806: 11822: 11830: 11836: 11837: 11845: 11846: 11850: 11852: 21857: 11865: 71874: 11877: 11880: 11881: 11883: 21884: 11885: 51886: 21888: 11890: 31892: 11893: 11894: 11895: 11896: 21897: 21898: 31899: 41900: 41901: 91902: 181903: 231904: 171905: 61906: 31907: 141908: 31909: 111910: 101911: 101912: 361913: 971914: 711915: 271916: 441917: 431918: 431919: 291920: 901921: 961922: 501923: 721924: 961925: 1411926: 2821927: 1791928: 2931929: 1041930: 991931: 6381932: 3051933: 2351934: 1141935: 6751936: 2251937: 1721938: 7831939: 2801940: 3661941: 3111942: 3301943: 2171944: 5561945: 2941946: 5701947: 1921948: 9481949: 3301950: 3981951: 7791952: 6891953: 3421954: 2111955: 1,1241956: 6861957: 3731958: 6191959: 2301960: 8921961: 2681962: 5481963: 2981964: 3331965: 1,9611966: 4641967: 4871968: 7981969: 2191970: 6121971: 3581972: 5191973: 3851974: 1,0971975: 7511976: 7101977: 3761978: 8381979: 6561980: 7751981: 6761982: 8501983: 1,6731984: 8351985: 5031986: 1,1701987: 9481988: 1,1551989: 1,3961990: 1,3801991: 1,4461992: 8771993: 6871994: 6841995: 1,1411996: 1,1191997: 1,6701998: 9351999: 1,0442000: 8022001: 1,3422002: 1,5932003: 1,0732004: 1,5112005: 6492006: 1,4172007: 1,2202008: 7342009: 5582010: 1,1342011: 1,4512012: 2,8542013: 7272014: 6392015: 5682016: 5532017: 1,1172018: 8082019: 6482020: 4422021: 4862022: 6122023: 8122024: 4322025: 8451797188119011917193319491965198119972013
Records set or tied on this calendar date in each year from 1797 to 1912. 1912 had 36 records.
Counts for years before the ledger starts come from the same station rules.
Records on 03-21 in each year
YearRecords
17972
18051
18061
18221
18301
18361
18371
18451
18461
18501
18522
18571
18657
18741
18771
18801
18811
18832
18841
18855
18862
18881
18903
18921
18931
18941
18951
18962
18972
18983
18994
19004
19019
190218
190323
190417
19056
19063
190714
19083
190911
191010
191110
191236
191397
191471
191527
191644
191743
191843
191929
192090
192196
192250
192372
192496
1925141
1926282
1927179
1928293
1929104
193099
1931638
1932305
1933235
1934114
1935675
1936225
1937172
1938783
1939280
1940366
1941311
1942330
1943217
1944556
1945294
1946570
1947192
1948948
1949330
1950398
1951779
1952689
1953342
1954211
19551,124
1956686
1957373
1958619
1959230
1960892
1961268
1962548
1963298
1964333
19651,961
1966464
1967487
1968798
1969219
1970612
1971358
1972519
1973385
19741,097
1975751
1976710
1977376
1978838
1979656
1980775
1981676
1982850
19831,673
1984835
1985503
19861,170
1987948
19881,155
19891,396
19901,380
19911,446
1992877
1993687
1994684
19951,141
19961,119
19971,670
1998935
19991,044
2000802
20011,342
20021,593
20031,073
20041,511
2005649
20061,417
20071,220
2008734
2009558
20101,134
20111,451
20122,854
2013727
2014639
2015568
2016553
20171,117
2018808
2019648
2020442
2021486
2022612
2023812
2024432
2025845

Download the Data

  • Data for records on 1912-03-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).