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Weather Records on 21 December 1915

43 weather records were set or tied worldwide on 21 December 1915. Highest significance: Southampton, CA.

Key Facts for 21 December 1915

  • On 21 December 1915, 43 weather records were set or tied at long-record stations worldwide.
  • 1 were record highs and 25 were record lows, counting maximum and minimum temperature.
  • By timescale, 1 were all-time records, 3 monthly and 39 daily.
  • Southampton set an all-time record daily snowfall of 36.8 cm (14.5 in) on 21 December 1915.
  • Across 158 earlier years (1793 to 2025) the same calendar date averaged 492 records.

Record Map

43 stations
Weather records on 21 December 1915 43 station records on 21 December 1915 are marked on the map, coloured by record type.
43 station records on 21 December 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 December 1915: highest significance records shown on the map
StationCountryTypeValueSignificance
SouthamptonCanadaRecord daily snowfall36.8 cm (14.5 in)35 of 100 (Notable)
Daly WatersAustraliaRecord daily precipitation43.9 mm (1.7 in)31 of 100 (Routine)
Portland Rfc CityUnited StatesRecord daily precipitation54.4 mm (2.1 in)30 of 100 (Routine)
Kei Road (Pol)South AfricaRecord daily precipitation48.3 mm (1.9 in)29 of 100 (Routine)
Darwin Post OfficeAustraliaRecord low maximum temperature27.1 C (80.8 F)27 of 100 (Routine)
East London -Signal STNSouth AfricaRecord daily precipitation34.3 mm (1.4 in)27 of 100 (Routine)
Komga (Pol)South AfricaRecord daily precipitation32.8 mm (1.3 in)26 of 100 (Routine)
SouthamptonCanadaRecord daily precipitation36.8 mm (1.4 in)24 of 100 (Routine)
HambantotaSri LankaRecord low maximum temperature26.5 C (79.7 F)21 of 100 (Routine)
SandvigDenmarkRecord low minimum temperature-6.0 C (21.2 F)18 of 100 (Routine)
Visby_FlygplatsSwedenRecord low minimum temperature-10.5 C (13.1 F)18 of 100 (Routine)
KarlshamnSwedenRecord low maximum temperature-7.5 C (18.5 F)18 of 100 (Routine)
HalmstadSwedenRecord low maximum temperature-8.0 C (17.6 F)17 of 100 (Routine)
VastervikSwedenRecord low maximum temperature-9.0 C (15.8 F)16 of 100 (Routine)
BorasSwedenRecord low maximum temperature-8.5 C (16.7 F)16 of 100 (Routine)
HalmstadSwedenRecord low minimum temperature-13.0 C (8.6 F)15 of 100 (Routine)
Sacramento 5 ESEUnited StatesRecord high maximum temperature17.2 C (63.0 F)15 of 100 (Routine)
HaldenNorwayRecord snow depth20.0 cm (7.9 in)14 of 100 (Routine)
Oktjabrskij-GorodokRussiaRecord daily precipitation4.0 mm (0.16 in)14 of 100 (Routine)
HarnosandSwedenRecord low maximum temperature-16.5 C (2.3 F)13 of 100 (Routine)
Oestersund-FroesoenSwedenRecord low maximum temperature-18.2 C (-0.8 F)13 of 100 (Routine)
HarnosandSwedenRecord low minimum temperature-24.0 C (-11.2 F)12 of 100 (Routine)
VanersborgSwedenRecord low maximum temperature-10.0 C (14.0 F)12 of 100 (Routine)
StockholmSwedenRecord low maximum temperature-11.0 C (12.2 F)12 of 100 (Routine)
UmeaSwedenRecord low maximum temperature-17.5 C (0.5 F)11 of 100 (Routine)
ArhangelskRussiaRecord low minimum temperature-32.5 C (-26.5 F)10 of 100 (Routine)
Hogsback (Bos)South AfricaRecord daily precipitation53.3 mm (2.1 in)10 of 100 (Routine)
HaparandaSwedenRecord low maximum temperature-21.8 C (-7.2 F)10 of 100 (Routine)
VastervikSwedenRecord low minimum temperature-14.0 C (6.8 F)10 of 100 (Routine)
VanersborgSwedenRecord low minimum temperature-18.0 C (-0.4 F)10 of 100 (Routine)
Berlin-DahlemGermanyRecord low minimum temperature-11.3 C (11.7 F)9 of 100 (Routine)
Philipstown (Tnk)South AfricaRecord daily precipitation7.4 mm (0.29 in)9 of 100 (Routine)
Visby_FlygplatsSwedenRecord low maximum temperature-4.4 C (24.1 F)9 of 100 (Routine)
FreiburgGermanyRecord daily precipitation10.4 mm (0.4 in)8 of 100 (Routine)
TomskRussiaRecord daily precipitation7.3 mm (0.29 in)8 of 100 (Routine)
Oestersund-FroesoenSwedenRecord low minimum temperature-27.4 C (-17.3 F)6 of 100 (Routine)
Olympia Priest Pt ParkUnited StatesRecord daily precipitation93.2 mm (3.7 in)4 of 100 (Routine)
Bird RocksCanadaRecord daily snowfall2.5 cm (1.0 in)2 of 100 (Routine)
Berlin-Dahlem (Lfag)GermanyRecord snow depth5.0 cm (2.0 in)2 of 100 (Routine)
Colesberg (Tnk)South AfricaRecord daily precipitation8.9 mm (0.35 in)2 of 100 (Routine)
JonkopingSwedenRecord low maximum temperature-8.5 C (16.7 F)2 of 100 (Routine)
GavleSwedenRecord low minimum temperature-21.0 C (-5.8 F)2 of 100 (Routine)
BjurakerSwedenRecord low maximum temperature-15.0 C (5.0 F)2 of 100 (Routine)

Counts by Type and Timescale

43 records
Records on 21 December 1915 by type Records set or tied on 21 December 1915 by type: Highest daily maximum 1, Lowest daily maximum 15, Lowest daily minimum 10, Heaviest daily rainfall 13, Heaviest daily snowfall 2, Deepest snow cover 2. 051015Highest daily maximum: 1Lowest daily maximum: 15Highest daily minimum: 0Lowest daily minimum: 10Heaviest daily rainfall: 13Heaviest daily snowfall: 2Deepest snow cover: 2Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 December 1915 by type: Highest daily maximum 1, Lowest daily maximum 15, Lowest daily minimum 10, Heaviest daily rainfall 13, Heaviest daily snowfall 2, Deepest snow cover 2.
Records on 21 December 1915 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum15
Highest daily minimum0
Lowest daily minimum10
Heaviest daily rainfall13
Heaviest daily snowfall2
Deepest snow cover2
Records on 21 December 1915 by timescale Records on 21 December 1915 by timescale: all-time 1, monthly 3, daily 39. 010203040all-time: 1monthly: 3daily: 39all-timemonthlydaily
Records on 21 December 1915 by timescale: all-time 1, monthly 3, daily 39.
Records on 21 December 1915 by timescale
TimescaleRecords
all-time1
monthly3
daily39

How Much Records Were Beaten By

36 broken records
Histogram of margins by which records were beaten on 21 December 1915 Margins by which the 36 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.0. Ties are not counted. 01020300 to 10: 2910 to 20: 120 to 30: 530 to 40: 040 to 50: 050 to 60: 10 to 1010 to 2020 to 3030 to 4040 to 5050 to 60
Margins by which the 36 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.0. Ties are not counted.
Histogram of margins by which records were beaten on 21 December 1915
MarginRecords
0 to 1029
10 to 201
20 to 305
30 to 400
40 to 500
50 to 601

Top 20 by Significance

21 December 1915
Top 20 records on 21 December 1915 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 December 1915Southampton, CAall-time snowfall36.8 cm (14.5 in)2.5 cm (1.0 in)22 years35 of 100 (Notable)
21 December 1915Daly Waters, AUdaily rain43.9 mm (1.7 in)25.6 mm (1.0 in)28 years31 of 100 (Routine)
21 December 1915Portland Rfc City, USdaily rain54.4 mm (2.1 in)27.7 mm (1.1 in)8 years30 of 100 (Routine)
21 December 1915Kei Road (Pol), ZAdaily rain48.3 mm (1.9 in)28.0 mm (1.1 in)13 years29 of 100 (Routine)
21 December 1915Darwin Post Office, AUdaily low max27.1 C (80.8 F)4.0 C (7.2 F)14 years27 of 100 (Routine)
21 December 1915East London -Signal STN, ZAdaily rain34.3 mm (1.4 in)20.8 mm (0.8 in)32 years27 of 100 (Routine)
21 December 1915Komga (Pol), ZAdaily rain32.8 mm (1.3 in)17.8 mm (0.7 in)23 years26 of 100 (Routine)
21 December 1915Southampton, CAmonthly rain36.8 mm (1.4 in)2.5 mm (0.10 in)22 years24 of 100 (Routine)
21 December 1915Hambantota, LKdaily low max26.5 C (79.7 F)0.7 C (1.3 F)42 years21 of 100 (Routine)
21 December 1915Sandvig, DKdaily low min-6.0 C (21.2 F)0.9 C (1.6 F)38 years18 of 100 (Routine)
21 December 1915Visby_Flygplats, SEdaily low min-10.5 C (13.1 F)2.5 C (4.5 F)28 years18 of 100 (Routine)
21 December 1915Karlshamn, SEdaily low max-7.5 C (18.5 F)2.5 C (4.5 F)28 years18 of 100 (Routine)
21 December 1915Halmstad, SEdaily low max-8.0 C (17.6 F)2.0 C (3.6 F)28 years17 of 100 (Routine)
21 December 1915Vastervik, SEmonthly low max-9.0 C (15.8 F)0.5 C (0.9 F)6 years16 of 100 (Routine)
21 December 1915Boras, SEdaily low max-8.5 C (16.7 F)2.0 C (3.6 F)28 years16 of 100 (Routine)
21 December 1915Halmstad, SEdaily low min-13.0 C (8.6 F)2.0 C (3.6 F)28 years15 of 100 (Routine)
21 December 1915Sacramento 5 ESE, USdaily high max17.2 C (63.0 F)1.6 C (2.9 F)27 years15 of 100 (Routine)
21 December 1915Halden, NOdaily snow depth20.0 cm (7.9 in)6.0 cm (2.4 in)18 years14 of 100 (Routine)
21 December 1915Oktjabrskij-Gorodok, RUdaily rain4.0 mm (0.16 in)0.8 mm (0.03 in)27 years14 of 100 (Routine)
21 December 1915Harnosand, SEdaily low max-16.5 C (2.3 F)2.5 C (4.5 F)18 years13 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

1793 to 1915
Records on 12-21 in each year Records set or tied on this calendar date in each year from 1793 to 1915. 1915 had 43 records. 01,0002,0003,0004,0001793: 11794: 11799: 11801: 21808: 31825: 11828: 11839: 11846: 11850: 11855: 71859: 11860: 11868: 11870: 11871: 21874: 21875: 31876: 11877: 11878: 11879: 11880: 11884: 11886: 31889: 11890: 41893: 41894: 11895: 51896: 31897: 31898: 11900: 81901: 151902: 51903: 251904: 31905: 151906: 151907: 171908: 191909: 201910: 291911: 361912: 231913: 111914: 1071915: 431916: 401917: 181918: 411919: 571920: 301921: 1041922: 341923: 3231924: 3771925: 1201926: 1781927: 1471928: 701929: 1561930: 661931: 5561932: 1501933: 5811934: 2301935: 3981936: 3231937: 1891938: 1451939: 1401940: 6221941: 6511942: 9681943: 1481944: 7621945: 3961946: 4951947: 7001948: 2971949: 1,2811950: 5041951: 1,0611952: 1971953: 2561954: 4441955: 8881956: 6721957: 8461958: 5161959: 2721960: 5851961: 2541962: 5631963: 1,1371964: 6131965: 2471966: 4001967: 1,9231968: 8181969: 8281970: 5471971: 6801972: 6511973: 1,2921974: 3741975: 5481976: 4461977: 4701978: 5171979: 5581980: 7261981: 1,4761982: 7021983: 3,3241984: 1,0121985: 9791986: 4041987: 7751988: 7171989: 3,2031990: 2,7011991: 1,1251992: 7511993: 9671994: 7931995: 8781996: 1,1141997: 8101998: 1,1421999: 8512000: 9442001: 6502002: 5792003: 1,1032004: 6752005: 6062006: 1,4432007: 9462008: 1,0622009: 1,0972010: 2,0392011: 6532012: 7592013: 1,0292014: 8782015: 1,1732016: 5432017: 4592018: 7422019: 7552020: 9652021: 3232022: 5282023: 1,1702024: 7782025: 1,0991793187418981915193119471963197919952011
Records set or tied on this calendar date in each year from 1793 to 1915. 1915 had 43 records.
Counts for years before the ledger starts come from the same station rules.
Records on 12-21 in each year
YearRecords
17931
17941
17991
18012
18083
18251
18281
18391
18461
18501
18557
18591
18601
18681
18701
18712
18742
18753
18761
18771
18781
18791
18801
18841
18863
18891
18904
18934
18941
18955
18963
18973
18981
19008
190115
19025
190325
19043
190515
190615
190717
190819
190920
191029
191136
191223
191311
1914107
191543
191640
191718
191841
191957
192030
1921104
192234
1923323
1924377
1925120
1926178
1927147
192870
1929156
193066
1931556
1932150
1933581
1934230
1935398
1936323
1937189
1938145
1939140
1940622
1941651
1942968
1943148
1944762
1945396
1946495
1947700
1948297
19491,281
1950504
19511,061
1952197
1953256
1954444
1955888
1956672
1957846
1958516
1959272
1960585
1961254
1962563
19631,137
1964613
1965247
1966400
19671,923
1968818
1969828
1970547
1971680
1972651
19731,292
1974374
1975548
1976446
1977470
1978517
1979558
1980726
19811,476
1982702
19833,324
19841,012
1985979
1986404
1987775
1988717
19893,203
19902,701
19911,125
1992751
1993967
1994793
1995878
19961,114
1997810
19981,142
1999851
2000944
2001650
2002579
20031,103
2004675
2005606
20061,443
2007946
20081,062
20091,097
20102,039
2011653
2012759
20131,029
2014878
20151,173
2016543
2017459
2018742
2019755
2020965
2021323
2022528
20231,170
2024778
20251,099

Download the Data

  • Data for records on 1915-12-21: 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 (2026-10-12).