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

Weather Records on 20 December 1909

22 weather records were set or tied worldwide on 20 December 1909. Highest significance: Parry Sound, CA.

Key Facts for 20 December 1909

  • On 20 December 1909, 22 weather records were set or tied at long-record stations worldwide.
  • 5 were record highs and 6 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 22 daily.
  • Parry Sound set a daily record precipitation of 40.6 mm (1.6 in) on 20 December 1909.
  • Across 163 earlier years (1793 to 2025) the same calendar date averaged 470 records.

Record Map

22 stations
Weather records on 20 December 1909 22 station records on 20 December 1909 are marked on the map, coloured by record type.
22 station records on 20 December 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 20 December 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
Parry SoundCanadaRecord daily precipitation40.6 mm (1.6 in)47 of 100 (Notable)
Parry SoundCanadaRecord daily snowfall40.6 cm (16.0 in)46 of 100 (Notable)
Winnipeg St Johns CollCanadaRecord daily snowfall15.7 cm (6.2 in)38 of 100 (Notable)
Santa FeUnited StatesRecord low minimum temperature-19.4 C (-2.9 F)21 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord daily precipitation15.7 mm (0.6 in)20 of 100 (Routine)
Port HastingsCanadaRecord daily snowfall12.7 cm (5.0 in)20 of 100 (Routine)
Port HastingsCanadaRecord daily precipitation12.7 mm (0.5 in)18 of 100 (Routine)
Stornoway AirportUnited KingdomRecord low maximum temperature0.0 C (32.0 F)18 of 100 (Routine)
St John'sCanadaRecord high minimum temperature2.2 C (36.0 F)12 of 100 (Routine)
Wilmington Wb CityUnited StatesRecord low maximum temperature1.7 C (35.1 F)12 of 100 (Routine)
Owen SoundCanadaRecord daily precipitation26.7 mm (1.1 in)11 of 100 (Routine)
Owen SoundCanadaRecord daily snowfall26.7 cm (10.5 in)11 of 100 (Routine)
HalmstadSwedenRecord daily precipitation10.8 mm (0.4 in)10 of 100 (Routine)
Santa FeUnited StatesRecord low maximum temperature-6.7 C (19.9 F)10 of 100 (Routine)
Wagga Wagga (Kooringal)AustraliaRecord high maximum temperature40.7 C (105.3 F)9 of 100 (Routine)
VestervigDenmarkRecord daily precipitation10.9 mm (0.4 in)9 of 100 (Routine)
TruroCanadaRecord daily snowfall10.2 cm (4.0 in)8 of 100 (Routine)
KarlsruheGermanyRecord high maximum temperature12.1 C (53.8 F)7 of 100 (Routine)
Forbes (Camp Street)AustraliaRecord high maximum temperature39.7 C (103.5 F)4 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord high maximum temperature21.0 C (69.8 F)2 of 100 (Routine)
Olympia Priest Pt ParkUnited StatesRecord low minimum temperature-4.4 C (24.1 F)2 of 100 (Routine)
San Diego WboUnited StatesRecord low maximum temperature13.3 C (55.9 F)1 of 100 (Routine)

Counts by Type and Timescale

22 records
Records on 20 December 1909 by type Records set or tied on 20 December 1909 by type: Highest daily maximum 4, Lowest daily maximum 4, Highest daily minimum 1, Lowest daily minimum 2, Heaviest daily rainfall 6, Heaviest daily snowfall 5. 0246Highest daily maximum: 4Lowest daily maximum: 4Highest daily minimum: 1Lowest daily minimum: 2Heaviest daily rainfall: 6Heaviest daily snowfall: 5Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 20 December 1909 by type: Highest daily maximum 4, Lowest daily maximum 4, Highest daily minimum 1, Lowest daily minimum 2, Heaviest daily rainfall 6, Heaviest daily snowfall 5.
Records on 20 December 1909 by type
Record typeRecords
Highest daily maximum4
Lowest daily maximum4
Highest daily minimum1
Lowest daily minimum2
Heaviest daily rainfall6
Heaviest daily snowfall5
Deepest snow cover0
Records on 20 December 1909 by timescale Records on 20 December 1909 by timescale: all-time 0, monthly 0, daily 22. 0102030all-time: 0monthly: 0daily: 22all-timemonthlydaily
Records on 20 December 1909 by timescale: all-time 0, monthly 0, daily 22.
Records on 20 December 1909 by timescale
TimescaleRecords
all-time0
monthly0
daily22

How Much Records Were Beaten By

19 broken records
Histogram of margins by which records were beaten on 20 December 1909 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 269.0. Ties are not counted. 051015200 to 50: 1650 to 100: 1100 to 150: 1150 to 200: 0200 to 250: 0250 to 300: 10 to 5050 to 100100 to 150150 to 200200 to 250250 to 300
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 269.0. Ties are not counted.
Histogram of margins by which records were beaten on 20 December 1909
MarginRecords
0 to 5016
50 to 1001
100 to 1501
150 to 2000
200 to 2500
250 to 3001

Top 20 by Significance

20 December 1909
Top 20 records on 20 December 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
20 December 1909Parry Sound, CAdaily rain40.6 mm (1.6 in)23.8 mm (0.9 in)19 years47 of 100 (Notable)
20 December 1909Parry Sound, CAdaily snowfall40.6 cm (16.0 in)26.9 cm (10.6 in)11 years46 of 100 (Notable)
20 December 1909Winnipeg St Johns Coll, CAdaily snowfall15.7 cm (6.2 in)9.9 cm (3.9 in)24 years38 of 100 (Notable)
20 December 1909Santa Fe, USdaily low min-19.4 C (-2.9 F)4.4 C (7.9 F)30 years21 of 100 (Routine)
20 December 1909Winnipeg St Johns Coll, CAdaily rain15.7 mm (0.6 in)9.9 mm (0.39 in)24 years20 of 100 (Routine)
20 December 1909Port Hastings, CAdaily snowfall12.7 cm (5.0 in)10.2 cm (4.0 in)23 years20 of 100 (Routine)
20 December 1909Port Hastings, CAdaily rain12.7 mm (0.5 in)10.2 mm (0.4 in)23 years18 of 100 (Routine)
20 December 1909Stornoway Airport, GBdaily low max0.0 C (32.0 F)1.7 C (3.1 F)30 years18 of 100 (Routine)
20 December 1909St John's, CAdaily high min2.2 C (36.0 F)1.6 C (2.9 F)22 years12 of 100 (Routine)
20 December 1909Wilmington Wb City, USdaily low max1.7 C (35.1 F)1.6 C (2.9 F)24 years12 of 100 (Routine)
20 December 1909Owen Sound, CAdaily rain26.7 mm (1.1 in)3.8 mm (0.15 in)12 years11 of 100 (Routine)
20 December 1909Owen Sound, CAdaily snowfall26.7 cm (10.5 in)3.8 cm (1.5 in)12 years11 of 100 (Routine)
20 December 1909Halmstad, SEdaily rain10.8 mm (0.4 in)0.8 mm (0.03 in)13 years10 of 100 (Routine)
20 December 1909Santa Fe, USdaily low max-6.7 C (19.9 F)0.6 C (1.1 F)21 years10 of 100 (Routine)
20 December 1909Wagga Wagga (Kooringal), AUdaily high max40.7 C (105.3 F)2.4 C (4.3 F)9 years9 of 100 (Routine)
20 December 1909Vestervig, DKdaily rain10.9 mm (0.4 in)1.8 mm (0.07 in)8 years9 of 100 (Routine)
20 December 1909Truro, CAdaily snowfall10.2 cm (4.0 in)1.8 cm (0.7 in)8 years8 of 100 (Routine)
20 December 1909Karlsruhe, DEdaily high max12.1 C (53.8 F)0.3 C (0.5 F)15 years7 of 100 (Routine)
20 December 1909Forbes (Camp Street), AUdaily high max39.7 C (103.5 F)0.3 C (0.5 F)4 years4 of 100 (Routine)
20 December 1909Oran-Hopital Militaire, DZdaily high max (Tie)21.0 C (69.8 F)tie11 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 12-20 in each year Records set or tied on this calendar date in each year from 1793 to 1909. 1909 had 22 records. 01,0002,0003,0001793: 11795: 11804: 11805: 21808: 11815: 11828: 11837: 11846: 11855: 81858: 11860: 11866: 11867: 11868: 11869: 11871: 21874: 31875: 11877: 21878: 11879: 11880: 11881: 11882: 11884: 41885: 11886: 41889: 41890: 21891: 21892: 11894: 21895: 81896: 11897: 41898: 21899: 11900: 71901: 81902: 141903: 171904: 91905: 51906: 51907: 111908: 51909: 221910: 171911: 241912: 271913: 71914: 431915: 181916: 451917: 331918: 181919: 251920: 221921: 1011922: 881923: 2151924: 3321925: 961926: 1631927: 2001928: 931929: 2561930: 671931: 5361932: 1701933: 4921934: 2651935: 1521936: 4161937: 1811938: 2401939: 3081940: 9651941: 6331942: 8171943: 1931944: 3401945: 4301946: 3271947: 3851948: 3451949: 1,1411950: 7581951: 9261952: 3941953: 3851954: 4161955: 7261956: 4711957: 1,3541958: 3821959: 1421960: 3541961: 3691962: 4751963: 8751964: 4991965: 3531966: 5551967: 1,3701968: 4821969: 5141970: 5181971: 4411972: 4481973: 1,1841974: 3281975: 6101976: 3821977: 4841978: 9101979: 6001980: 6671981: 1,6811982: 7121983: 2,9951984: 1,4111985: 1,0351986: 3211987: 1,1791988: 7601989: 1,8121990: 1,8851991: 1,1721992: 1,1341993: 1,2661994: 8131995: 1,1281996: 1,4481997: 6511998: 1,1101999: 9382000: 1,1502001: 5232002: 9432003: 1,3152004: 8362005: 5152006: 1,3872007: 9862008: 1,3562009: 1,5022010: 2,0552011: 8462012: 1,1312013: 5842014: 5242015: 1,2382016: 6032017: 6882018: 5922019: 7312020: 5542021: 4422022: 5672023: 1,2422024: 8972025: 1,1661793187418961913193019471964198119982015
Records set or tied on this calendar date in each year from 1793 to 1909. 1909 had 22 records.
Counts for years before the ledger starts come from the same station rules.
Records on 12-20 in each year
YearRecords
17931
17951
18041
18052
18081
18151
18281
18371
18461
18558
18581
18601
18661
18671
18681
18691
18712
18743
18751
18772
18781
18791
18801
18811
18821
18844
18851
18864
18894
18902
18912
18921
18942
18958
18961
18974
18982
18991
19007
19018
190214
190317
19049
19055
19065
190711
19085
190922
191017
191124
191227
19137
191443
191518
191645
191733
191818
191925
192022
1921101
192288
1923215
1924332
192596
1926163
1927200
192893
1929256
193067
1931536
1932170
1933492
1934265
1935152
1936416
1937181
1938240
1939308
1940965
1941633
1942817
1943193
1944340
1945430
1946327
1947385
1948345
19491,141
1950758
1951926
1952394
1953385
1954416
1955726
1956471
19571,354
1958382
1959142
1960354
1961369
1962475
1963875
1964499
1965353
1966555
19671,370
1968482
1969514
1970518
1971441
1972448
19731,184
1974328
1975610
1976382
1977484
1978910
1979600
1980667
19811,681
1982712
19832,995
19841,411
19851,035
1986321
19871,179
1988760
19891,812
19901,885
19911,172
19921,134
19931,266
1994813
19951,128
19961,448
1997651
19981,110
1999938
20001,150
2001523
2002943
20031,315
2004836
2005515
20061,387
2007986
20081,356
20091,502
20102,055
2011846
20121,131
2013584
2014524
20151,238
2016603
2017688
2018592
2019731
2020554
2021442
2022567
20231,242
2024897
20251,166

Download the Data

  • Data for records on 1909-12-20: 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).