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Weather Records on 15 December 1911

23 weather records were set or tied worldwide on 15 December 1911. Highest significance: Port Arthur, CA.

Key Facts for 15 December 1911

  • On 15 December 1911, 23 weather records were set or tied at long-record stations worldwide.
  • 5 were record highs and 1 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 22 daily.
  • Port Arthur set a daily record snowfall of 10.2 cm (4.0 in) on 15 December 1911.
  • Across 168 earlier years (1793 to 2025) the same calendar date averaged 458 records.

Record Map

23 stations
Weather records on 15 December 1911 23 station records on 15 December 1911 are marked on the map, coloured by record type.
23 station records on 15 December 1911 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 15 December 1911: highest significance records shown on the map
StationCountryTypeValueSignificance
Port ArthurCanadaRecord daily snowfall10.2 cm (4.0 in)29 of 100 (Routine)
Jacksonville Wb CityUnited StatesRecord high minimum temperature20.6 C (69.1 F)25 of 100 (Routine)
Wilmington Wb CityUnited StatesRecord daily precipitation28.4 mm (1.1 in)24 of 100 (Routine)
Port ArthurCanadaRecord daily precipitation10.2 mm (0.4 in)20 of 100 (Routine)
Ivanhoe (Wokabity)AustraliaRecord daily precipitation9.1 mm (0.36 in)20 of 100 (Routine)
Melrose PlainsAustraliaRecord daily precipitation16.8 mm (0.7 in)20 of 100 (Routine)
Cobar (the Meadows)AustraliaRecord daily precipitation18.5 mm (0.7 in)20 of 100 (Routine)
Chattanooga Wb CityUnited StatesRecord daily precipitation29.2 mm (1.1 in)16 of 100 (Routine)
Mount PooleAustraliaRecord daily precipitation12.7 mm (0.5 in)15 of 100 (Routine)
ArhangelskRussiaRecord daily precipitation4.0 mm (0.16 in)15 of 100 (Routine)
PeterboroughCanadaRecord high maximum temperature10.0 C (50.0 F)13 of 100 (Routine)
Warren (Haddon Rig)AustraliaRecord daily precipitation11.7 mm (0.5 in)12 of 100 (Routine)
Eden (Caravan Park)AustraliaRecord daily precipitation16.8 mm (0.7 in)11 of 100 (Routine)
ConcordUnited StatesRecord daily snowfall8.4 cm (3.3 in)9 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord daily precipitation3.0 mm (0.12 in)8 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord daily snowfall3.0 cm (1.2 in)8 of 100 (Routine)
MinnedosaCanadaRecord daily precipitation2.5 mm (0.10 in)7 of 100 (Routine)
ArnsbergGermanyRecord high maximum temperature11.5 C (52.7 F)7 of 100 (Routine)
MinnedosaCanadaRecord daily snowfall2.5 cm (1.0 in)6 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord high minimum temperature13.0 C (55.4 F)2 of 100 (Routine)
Melbourne Regional OfficeAustraliaRecord low minimum temperature7.8 C (46.0 F)2 of 100 (Routine)
Jacksonville Wb CityUnited StatesRecord high maximum temperature26.7 C (80.1 F)2 of 100 (Routine)
Portland Rfc CityUnited StatesRecord daily precipitation19.8 mm (0.8 in)1 of 100 (Routine)

Counts by Type and Timescale

23 records
Records on 15 December 1911 by type Records set or tied on 15 December 1911 by type: Highest daily maximum 3, Highest daily minimum 2, Lowest daily minimum 1, Heaviest daily rainfall 13, Heaviest daily snowfall 4. 051015Highest daily maximum: 3Lowest daily maximum: 0Highest daily minimum: 2Lowest daily minimum: 1Heaviest daily rainfall: 13Heaviest daily snowfall: 4Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 15 December 1911 by type: Highest daily maximum 3, Highest daily minimum 2, Lowest daily minimum 1, Heaviest daily rainfall 13, Heaviest daily snowfall 4.
Records on 15 December 1911 by type
Record typeRecords
Highest daily maximum3
Lowest daily maximum0
Highest daily minimum2
Lowest daily minimum1
Heaviest daily rainfall13
Heaviest daily snowfall4
Deepest snow cover0
Records on 15 December 1911 by timescale Records on 15 December 1911 by timescale: all-time 0, monthly 1, daily 22. 0102030all-time: 0monthly: 1daily: 22all-timemonthlydaily
Records on 15 December 1911 by timescale: all-time 0, monthly 1, daily 22.
Records on 15 December 1911 by timescale
TimescaleRecords
all-time0
monthly1
daily22

How Much Records Were Beaten By

19 broken records
Histogram of margins by which records were beaten on 15 December 1911 Margins by which the 19 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 72.0. Ties are not counted. 0510150 to 10: 1310 to 20: 520 to 30: 030 to 40: 040 to 50: 050 to 60: 060 to 70: 070 to 80: 10 to 1010 to 2020 to 3030 to 4040 to 5050 to 6060 to 7070 to 80
Margins by which the 19 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 72.0. Ties are not counted.
Histogram of margins by which records were beaten on 15 December 1911
MarginRecords
0 to 1013
10 to 205
20 to 300
30 to 400
40 to 500
50 to 600
60 to 700
70 to 801

Top 20 by Significance

15 December 1911
Top 20 records on 15 December 1911 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
15 December 1911Port Arthur, CAdaily snowfall10.2 cm (4.0 in)7.2 cm (2.8 in)25 years29 of 100 (Routine)
15 December 1911Jacksonville Wb City, USmonthly high min20.6 C (69.1 F)1.2 C (2.2 F)30 years25 of 100 (Routine)
15 December 1911Wilmington Wb City, USdaily rain28.4 mm (1.1 in)9.9 mm (0.39 in)39 years24 of 100 (Routine)
15 December 1911Port Arthur, CAdaily rain10.2 mm (0.4 in)7.2 mm (0.28 in)25 years20 of 100 (Routine)
15 December 1911Ivanhoe (Wokabity), AUdaily rain9.1 mm (0.36 in)9.1 mm (0.36 in)38 years20 of 100 (Routine)
15 December 1911Melrose Plains, AUdaily rain16.8 mm (0.7 in)14.8 mm (0.6 in)26 years20 of 100 (Routine)
15 December 1911Cobar (the Meadows), AUdaily rain18.5 mm (0.7 in)17.2 mm (0.7 in)8 years20 of 100 (Routine)
15 December 1911Chattanooga Wb City, USdaily rain29.2 mm (1.1 in)10.7 mm (0.4 in)19 years16 of 100 (Routine)
15 December 1911Mount Poole, AUdaily rain12.7 mm (0.5 in)10.2 mm (0.4 in)16 years15 of 100 (Routine)
15 December 1911Arhangelsk, RUdaily rain4.0 mm (0.16 in)1.4 mm (0.06 in)17 years15 of 100 (Routine)
15 December 1911Peterborough, CAdaily high max10.0 C (50.0 F)2.8 C (5.0 F)16 years13 of 100 (Routine)
15 December 1911Warren (Haddon Rig), AUdaily rain11.7 mm (0.5 in)0.8 mm (0.03 in)31 years12 of 100 (Routine)
15 December 1911Eden (Caravan Park), AUdaily rain16.8 mm (0.7 in)2.6 mm (0.10 in)22 years11 of 100 (Routine)
15 December 1911Concord, USdaily snowfall8.4 cm (3.3 in)0.5 cm (0.2 in)17 years9 of 100 (Routine)
15 December 1911Winnipeg St Johns Coll, CAdaily rain3.0 mm (0.12 in)0.2 mm (0.01 in)13 years8 of 100 (Routine)
15 December 1911Winnipeg St Johns Coll, CAdaily snowfall3.0 cm (1.2 in)0.2 cm (0.1 in)13 years8 of 100 (Routine)
15 December 1911Minnedosa, CAdaily rain2.5 mm (0.10 in)1.0 mm (0.04 in)1 year7 of 100 (Routine)
15 December 1911Arnsberg, DEdaily high max11.5 C (52.7 F)0.2 C (0.4 F)13 years7 of 100 (Routine)
15 December 1911Minnedosa, CAdaily snowfall2.5 cm (1.0 in)1.0 cm (0.4 in)1 year6 of 100 (Routine)
15 December 1911Oran-Hopital Militaire, DZdaily high min (Tie)13.0 C (55.4 F)tie15 years2 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 1911
Records on 12-15 in each year Records set or tied on this calendar date in each year from 1793 to 1911. 1911 had 23 records. 01,0002,0003,0001793: 11796: 11798: 11800: 11808: 31810: 11814: 31815: 11825: 11831: 11840: 21844: 21846: 31847: 11854: 31859: 21863: 11864: 11866: 11867: 21868: 11869: 11870: 11873: 11874: 11878: 41879: 21880: 21881: 31882: 21883: 11885: 11886: 11889: 31890: 11891: 21892: 41893: 11894: 41895: 11896: 51897: 21899: 121900: 51901: 211902: 31903: 71904: 91905: 61906: 91907: 101908: 51909: 51910: 41911: 231912: 421913: 131914: 2391915: 1801916: 401917: 401918: 541919: 281920: 351921: 261922: 651923: 1321924: 3581925: 1871926: 2261927: 2351928: 3881929: 5001930: 1601931: 2841932: 3851933: 7961934: 1991935: 1401936: 2861937: 3101938: 1001939: 6371940: 4641941: 3731942: 3851943: 4861944: 2811945: 4201946: 5211947: 6341948: 1,2391949: 1351950: 2921951: 9621952: 3671953: 2701954: 4131955: 3711956: 5311957: 3041958: 5311959: 5601960: 3131961: 8831962: 9791963: 6701964: 3711965: 7591966: 2751967: 9481968: 5101969: 3521970: 2151971: 1,7391972: 1,1591973: 6151974: 5111975: 1,2301976: 3491977: 9631978: 4991979: 5601980: 1,0851981: 1,2431982: 8311983: 1,2291984: 1,3971985: 1,0771986: 5021987: 1,7401988: 5191989: 2,7531990: 8461991: 6361992: 1,2631993: 7341994: 6761995: 8481996: 7271997: 1,5211998: 1,2161999: 6212000: 1,1542001: 1,0262002: 8312003: 8462004: 7952005: 9532006: 1,4912007: 9732008: 1,7892009: 9302010: 1,7052011: 7802012: 1,0582013: 7012014: 1,0452015: 1,3982016: 1,0242017: 3322018: 5392019: 5472020: 4002021: 1,1822022: 1,0572023: 7942024: 3692025: 2,1151793186418901908192519421959197619932010
Records set or tied on this calendar date in each year from 1793 to 1911. 1911 had 23 records.
Counts for years before the ledger starts come from the same station rules.
Records on 12-15 in each year
YearRecords
17931
17961
17981
18001
18083
18101
18143
18151
18251
18311
18402
18442
18463
18471
18543
18592
18631
18641
18661
18672
18681
18691
18701
18731
18741
18784
18792
18802
18813
18822
18831
18851
18861
18893
18901
18912
18924
18931
18944
18951
18965
18972
189912
19005
190121
19023
19037
19049
19056
19069
190710
19085
19095
19104
191123
191242
191313
1914239
1915180
191640
191740
191854
191928
192035
192126
192265
1923132
1924358
1925187
1926226
1927235
1928388
1929500
1930160
1931284
1932385
1933796
1934199
1935140
1936286
1937310
1938100
1939637
1940464
1941373
1942385
1943486
1944281
1945420
1946521
1947634
19481,239
1949135
1950292
1951962
1952367
1953270
1954413
1955371
1956531
1957304
1958531
1959560
1960313
1961883
1962979
1963670
1964371
1965759
1966275
1967948
1968510
1969352
1970215
19711,739
19721,159
1973615
1974511
19751,230
1976349
1977963
1978499
1979560
19801,085
19811,243
1982831
19831,229
19841,397
19851,077
1986502
19871,740
1988519
19892,753
1990846
1991636
19921,263
1993734
1994676
1995848
1996727
19971,521
19981,216
1999621
20001,154
20011,026
2002831
2003846
2004795
2005953
20061,491
2007973
20081,789
2009930
20101,705
2011780
20121,058
2013701
20141,045
20151,398
20161,024
2017332
2018539
2019547
2020400
20211,182
20221,057
2023794
2024369
20252,115

Download the Data

  • Data for records on 1911-12-15: 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 . Last revised (2026-10-15).