Daily records
Page built 2026-10-19
Data as of 2026-10-15
Search
Built 2026-10-19 (19 October 2026)

Weather Records on 18 December 1909

18 weather records were set or tied worldwide on 18 December 1909. Highest significance: Chattanooga Wb City, US.

Key Facts for 18 December 1909

  • On 18 December 1909, 18 weather records were set or tied at long-record stations worldwide.
  • 2 were record highs and 4 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 17 daily.
  • Chattanooga Wb City set a daily record snowfall of 13.5 cm (5.3 in) on 18 December 1909.
  • Across 156 earlier years (1793 to 2025) the same calendar date averaged 483 records.

Record Map

18 stations
Weather records on 18 December 1909 18 station records on 18 December 1909 are marked on the map, coloured by record type.
18 station records on 18 December 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 18 December 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
Chattanooga Wb CityUnited StatesRecord daily snowfall13.5 cm (5.3 in)33 of 100 (Routine)
OrilliaCanadaRecord daily snowfall17.8 cm (7.0 in)26 of 100 (Routine)
Santa FeUnited StatesRecord low maximum temperature-7.8 C (18.0 F)22 of 100 (Routine)
UmeaSwedenRecord daily precipitation18.5 mm (0.7 in)20 of 100 (Routine)
HarnosandSwedenRecord daily precipitation13.0 mm (0.5 in)19 of 100 (Routine)
Santa FeUnited StatesRecord low minimum temperature-18.9 C (-2.0 F)19 of 100 (Routine)
Ilulissat (Jakobshavn)Greenland [Denmark]Record daily precipitation9.4 mm (0.37 in)18 of 100 (Routine)
GenoaItalyRecord daily precipitation31.8 mm (1.3 in)18 of 100 (Routine)
Little Rock St CapitolUnited StatesRecord daily snowfall2.0 cm (0.8 in)17 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord high minimum temperature14.0 C (57.2 F)16 of 100 (Routine)
OrilliaCanadaRecord daily precipitation17.8 mm (0.7 in)14 of 100 (Routine)
TranebjergDenmarkRecord daily precipitation11.8 mm (0.5 in)14 of 100 (Routine)
Alice Springs Post OfficeAustraliaRecord low minimum temperature12.2 C (54.0 F)10 of 100 (Routine)
Inverell ComparisonAustraliaRecord high minimum temperature19.2 C (66.6 F)8 of 100 (Routine)
RivaItalyRecord daily precipitation19.9 mm (0.8 in)8 of 100 (Routine)
BeatriceCanadaRecord daily precipitation15.2 mm (0.6 in)2 of 100 (Routine)
BeatriceCanadaRecord daily snowfall15.2 cm (6.0 in)2 of 100 (Routine)
Little Rock St CapitolUnited StatesRecord low maximum temperature-2.2 C (28.0 F)2 of 100 (Routine)

Counts by Type and Timescale

18 records
Records on 18 December 1909 by type Records set or tied on 18 December 1909 by type: Lowest daily maximum 2, Highest daily minimum 2, Lowest daily minimum 2, Heaviest daily rainfall 8, Heaviest daily snowfall 4. 02468Highest daily maximum: 0Lowest daily maximum: 2Highest daily minimum: 2Lowest daily minimum: 2Heaviest daily rainfall: 8Heaviest daily snowfall: 4Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 18 December 1909 by type: Lowest daily maximum 2, Highest daily minimum 2, Lowest daily minimum 2, Heaviest daily rainfall 8, Heaviest daily snowfall 4.
Records on 18 December 1909 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum2
Highest daily minimum2
Lowest daily minimum2
Heaviest daily rainfall8
Heaviest daily snowfall4
Deepest snow cover0
Records on 18 December 1909 by timescale Records on 18 December 1909 by timescale: all-time 0, monthly 1, daily 17. 05101520all-time: 0monthly: 1daily: 17all-timemonthlydaily
Records on 18 December 1909 by timescale: all-time 0, monthly 1, daily 17.
Records on 18 December 1909 by timescale
TimescaleRecords
all-time0
monthly1
daily17

How Much Records Were Beaten By

15 broken records
Histogram of margins by which records were beaten on 18 December 1909 Margins by which the 15 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 130.0. Ties are not counted. 0510150 to 20: 1220 to 40: 140 to 60: 060 to 80: 180 to 100: 0100 to 120: 0120 to 140: 10 to 2020 to 4040 to 6060 to 8080 to 100100 to 120120 to 140
Margins by which the 15 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 130.0. Ties are not counted.
Histogram of margins by which records were beaten on 18 December 1909
MarginRecords
0 to 2012
20 to 401
40 to 600
60 to 801
80 to 1000
100 to 1200
120 to 1401

Top 20 by Significance

18 December 1909
Top 18 records on 18 December 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
18 December 1909Chattanooga Wb City, USdaily snowfall13.5 cm (5.3 in)13.0 cm (5.1 in)24 years33 of 100 (Routine)
18 December 1909Orillia, CAdaily snowfall17.8 cm (7.0 in)7.6 cm (3.0 in)36 years26 of 100 (Routine)
18 December 1909Santa Fe, USdaily low max-7.8 C (18.0 F)4.5 C (8.1 F)34 years22 of 100 (Routine)
18 December 1909Umea, SEdaily rain18.5 mm (0.7 in)3.9 mm (0.15 in)37 years20 of 100 (Routine)
18 December 1909Harnosand, SEdaily rain13.0 mm (0.5 in)3.3 mm (0.13 in)27 years19 of 100 (Routine)
18 December 1909Santa Fe, USdaily low min-18.9 C (-2.0 F)5.0 C (9.0 F)16 years19 of 100 (Routine)
18 December 1909Ilulissat (Jakobshavn), GLmonthly rain9.4 mm (0.37 in)1.0 mm (0.04 in)2 years18 of 100 (Routine)
18 December 1909Genoa, ITdaily rain31.8 mm (1.3 in)4.2 mm (0.17 in)32 years18 of 100 (Routine)
18 December 1909Little Rock St Capitol, USdaily snowfall2.0 cm (0.8 in)2.0 cm (0.8 in)33 years17 of 100 (Routine)
18 December 1909Oran-Hopital Militaire, DZdaily high min14.0 C (57.2 F)2.0 C (3.6 F)13 years16 of 100 (Routine)
18 December 1909Orillia, CAdaily rain17.8 mm (0.7 in)6.1 mm (0.24 in)9 years14 of 100 (Routine)
18 December 1909Tranebjerg, DKdaily rain11.8 mm (0.5 in)1.0 mm (0.04 in)27 years14 of 100 (Routine)
18 December 1909Alice Springs Post Office, AUdaily low min12.2 C (54.0 F)0.9 C (1.6 F)16 years10 of 100 (Routine)
18 December 1909Inverell Comparison, AUdaily high min19.2 C (66.6 F)0.3 C (0.5 F)19 years8 of 100 (Routine)
18 December 1909Riva, ITdaily rain19.9 mm (0.8 in)3.1 mm (0.12 in)12 years8 of 100 (Routine)
18 December 1909Beatrice, CAdaily rain (Tie)15.2 mm (0.6 in)tie29 years2 of 100 (Routine)
18 December 1909Beatrice, CAdaily snowfall (Tie)15.2 cm (6.0 in)tie29 years2 of 100 (Routine)
18 December 1909Little Rock St Capitol, USdaily low max (Tie)-2.2 C (28.0 F)tie24 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 1909
Records on 12-18 in each year Records set or tied on this calendar date in each year from 1793 to 1909. 1909 had 18 records. 01,0002,0003,0001793: 11796: 11805: 11814: 11825: 11846: 11849: 11852: 21858: 11859: 41862: 21864: 11868: 11873: 11875: 11876: 21878: 11881: 21882: 11884: 21886: 11887: 11888: 11889: 41890: 51892: 41894: 81895: 11897: 41898: 91899: 31900: 21901: 61902: 331903: 111904: 251905: 31906: 211907: 151908: 161909: 181910: 191911: 91912: 331913: 381914: 201915: 281916: 571917: 621918: 211919: 1171920: 771921: 1231922: 1081923: 3781924: 4801925: 741926: 1731927: 1511928: 1651929: 3661930: 2301931: 3601932: 3531933: 5061934: 2091935: 1381936: 4661937: 4591938: 1851939: 9001940: 2421941: 2131942: 2811943: 4191944: 1911945: 5981946: 1991947: 2661948: 3541949: 5611950: 2891951: 8671952: 4501953: 3731954: 5071955: 6111956: 3331957: 9011958: 5241959: 4771960: 4771961: 8851962: 7591963: 5711964: 8401965: 4021966: 6441967: 1,1051968: 4881969: 3761970: 5021971: 3871972: 3751973: 1,0081974: 2291975: 6251976: 4591977: 9921978: 9461979: 1,0871980: 7721981: 1,3621982: 5371983: 2,0141984: 1,4391985: 1,3841986: 8751987: 1,5051988: 1,0611989: 1,8181990: 1,3671991: 7561992: 1,0451993: 6971994: 6431995: 1,0651996: 1,8331997: 1,1951998: 8631999: 9232000: 1,5722001: 9062002: 1,4372003: 9872004: 5062005: 9872006: 1,1672007: 7462008: 1,0142009: 1,2532010: 1,3222011: 6972012: 7292013: 5132014: 5562015: 1,2542016: 1,8212017: 5162018: 4642019: 6792020: 3262021: 7622022: 5362023: 1,2932024: 7802025: 9941793187819011917193319491965198119972013
Records set or tied on this calendar date in each year from 1793 to 1909. 1909 had 18 records.
Counts for years before the ledger starts come from the same station rules.
Records on 12-18 in each year
YearRecords
17931
17961
18051
18141
18251
18461
18491
18522
18581
18594
18622
18641
18681
18731
18751
18762
18781
18812
18821
18842
18861
18871
18881
18894
18905
18924
18948
18951
18974
18989
18993
19002
19016
190233
190311
190425
19053
190621
190715
190816
190918
191019
19119
191233
191338
191420
191528
191657
191762
191821
1919117
192077
1921123
1922108
1923378
1924480
192574
1926173
1927151
1928165
1929366
1930230
1931360
1932353
1933506
1934209
1935138
1936466
1937459
1938185
1939900
1940242
1941213
1942281
1943419
1944191
1945598
1946199
1947266
1948354
1949561
1950289
1951867
1952450
1953373
1954507
1955611
1956333
1957901
1958524
1959477
1960477
1961885
1962759
1963571
1964840
1965402
1966644
19671,105
1968488
1969376
1970502
1971387
1972375
19731,008
1974229
1975625
1976459
1977992
1978946
19791,087
1980772
19811,362
1982537
19832,014
19841,439
19851,384
1986875
19871,505
19881,061
19891,818
19901,367
1991756
19921,045
1993697
1994643
19951,065
19961,833
19971,195
1998863
1999923
20001,572
2001906
20021,437
2003987
2004506
2005987
20061,167
2007746
20081,014
20091,253
20101,322
2011697
2012729
2013513
2014556
20151,254
20161,821
2017516
2018464
2019679
2020326
2021762
2022536
20231,293
2024780
2025994

Download the Data

  • Data for records on 1909-12-18: 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).