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Built 2026-10-19 (19 October 2026)

Weather Records on 17 December 1909

5 weather records were set or tied worldwide on 17 December 1909. Highest significance: Durban-Botanical Gardens, ZA.

Key Facts for 17 December 1909

  • On 17 December 1909, 5 weather records were set or tied at long-record stations worldwide.
  • 0 were record highs and 0 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 5 daily.
  • Durban-Botanical Gardens set a daily record precipitation of 40.1 mm (1.6 in) on 17 December 1909.
  • Across 160 earlier years (1793 to 2025) the same calendar date averaged 466 records.

Record Map

5 stations
Weather records on 17 December 1909 5 station records on 17 December 1909 are marked on the map, coloured by record type.
5 station records on 17 December 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 17 December 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
Durban-Botanical GardensSouth AfricaRecord daily precipitation40.1 mm (1.6 in)23 of 100 (Routine)
LakefieldCanadaRecord daily snowfall6.4 cm (2.5 in)18 of 100 (Routine)
SvegSwedenRecord daily precipitation12.5 mm (0.5 in)2 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord daily precipitation2.0 mm (0.08 in)1 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord daily snowfall2.0 cm (0.8 in)1 of 100 (Routine)

Counts by Type and Timescale

5 records
Records on 17 December 1909 by type Records set or tied on 17 December 1909 by type: Heaviest daily rainfall 3, Heaviest daily snowfall 2. 0123Highest daily maximum: 0Lowest daily maximum: 0Highest daily minimum: 0Lowest daily minimum: 0Heaviest daily rainfall: 3Heaviest daily snowfall: 2Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 17 December 1909 by type: Heaviest daily rainfall 3, Heaviest daily snowfall 2.
Records on 17 December 1909 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum0
Highest daily minimum0
Lowest daily minimum0
Heaviest daily rainfall3
Heaviest daily snowfall2
Deepest snow cover0
Records on 17 December 1909 by timescale Records on 17 December 1909 by timescale: all-time 0, monthly 0, daily 5. 0246all-time: 0monthly: 0daily: 5all-timemonthlydaily
Records on 17 December 1909 by timescale: all-time 0, monthly 0, daily 5.
Records on 17 December 1909 by timescale
TimescaleRecords
all-time0
monthly0
daily5

How Much Records Were Beaten By

2 broken records
Histogram of margins by which records were beaten on 17 December 1909 Margins by which the 2 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 39.0. Ties are not counted. 001110 to 5: 05 to 10: 010 to 15: 015 to 20: 020 to 25: 025 to 30: 130 to 35: 035 to 40: 10 to 55 to 1010 to 1515 to 2020 to 2525 to 3030 to 3535 to 40
Margins by which the 2 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 39.0. Ties are not counted.
Histogram of margins by which records were beaten on 17 December 1909
MarginRecords
0 to 50
5 to 100
10 to 150
15 to 200
20 to 250
25 to 301
30 to 350
35 to 401

Top 20 by Significance

17 December 1909
Top 5 records on 17 December 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
17 December 1909Durban-Botanical Gardens, ZAdaily rain40.1 mm (1.6 in)26.9 mm (1.1 in)0 years23 of 100 (Routine)
17 December 1909Lakefield, CAdaily snowfall6.4 cm (2.5 in)3.9 cm (1.5 in)23 years18 of 100 (Routine)
17 December 1909Sveg, SEdaily rain (Tie)12.5 mm (0.5 in)tie21 years2 of 100 (Routine)
17 December 1909Winnipeg St Johns Coll, CAdaily rain (Tie)2.0 mm (0.08 in)tie4 years1 of 100 (Routine)
17 December 1909Winnipeg St Johns Coll, CAdaily snowfall (Tie)2.0 cm (0.8 in)tie4 years1 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 12-17 in each year Records set or tied on this calendar date in each year from 1793 to 1909. 1909 had 5 records. 01,0002,0003,0001793: 21796: 11806: 21808: 21814: 11815: 11839: 11845: 11846: 41847: 11848: 11859: 31866: 11867: 11868: 11869: 21873: 21876: 31877: 21878: 11879: 21881: 21885: 11886: 11888: 21889: 21890: 41892: 41893: 21894: 41895: 31896: 41897: 41898: 21899: 11900: 61901: 51902: 471903: 21904: 141905: 21906: 171907: 91908: 131909: 51910: 371911: 121912: 151913: 211914: 171915: 311916: 211917: 211918: 211919: 1091920: 971921: 941922: 1201923: 1701924: 5051925: 791926: 1721927: 1431928: 3591929: 2211930: 3621931: 2171932: 6841933: 7101934: 2001935: 871936: 5041937: 3791938: 1181939: 1,1261940: 2481941: 2611942: 5071943: 4441944: 1891945: 6211946: 2071947: 2581948: 3161949: 2961950: 2941951: 7731952: 2771953: 2831954: 4091955: 4191956: 4481957: 6861958: 5401959: 5481960: 4921961: 9111962: 6761963: 5311964: 1,2391965: 4821966: 5161967: 1,1211968: 3381969: 2381970: 8201971: 7811972: 6011973: 1,0161974: 3901975: 4741976: 5071977: 1,0241978: 7101979: 9511980: 1,1161981: 1,3541982: 5691983: 1,2641984: 1,6181985: 1,2101986: 7431987: 1,1911988: 4811989: 2,9051990: 8661991: 5771992: 1,4611993: 7611994: 6851995: 9561996: 1,2121997: 1,2791998: 6951999: 9012000: 1,5662001: 1,2622002: 8582003: 7512004: 5542005: 8062006: 1,3072007: 1,1002008: 1,3542009: 9262010: 1,4052011: 4302012: 9422013: 7182014: 3702015: 1,3782016: 1,5212017: 4082018: 4982019: 9172020: 7682021: 9082022: 5952023: 9312024: 5602025: 1,1981793187618991916193319501967198420012018
Records set or tied on this calendar date in each year from 1793 to 1909. 1909 had 5 records.
Counts for years before the ledger starts come from the same station rules.
Records on 12-17 in each year
YearRecords
17932
17961
18062
18082
18141
18151
18391
18451
18464
18471
18481
18593
18661
18671
18681
18692
18732
18763
18772
18781
18792
18812
18851
18861
18882
18892
18904
18924
18932
18944
18953
18964
18974
18982
18991
19006
19015
190247
19032
190414
19052
190617
19079
190813
19095
191037
191112
191215
191321
191417
191531
191621
191721
191821
1919109
192097
192194
1922120
1923170
1924505
192579
1926172
1927143
1928359
1929221
1930362
1931217
1932684
1933710
1934200
193587
1936504
1937379
1938118
19391,126
1940248
1941261
1942507
1943444
1944189
1945621
1946207
1947258
1948316
1949296
1950294
1951773
1952277
1953283
1954409
1955419
1956448
1957686
1958540
1959548
1960492
1961911
1962676
1963531
19641,239
1965482
1966516
19671,121
1968338
1969238
1970820
1971781
1972601
19731,016
1974390
1975474
1976507
19771,024
1978710
1979951
19801,116
19811,354
1982569
19831,264
19841,618
19851,210
1986743
19871,191
1988481
19892,905
1990866
1991577
19921,461
1993761
1994685
1995956
19961,212
19971,279
1998695
1999901
20001,566
20011,262
2002858
2003751
2004554
2005806
20061,307
20071,100
20081,354
2009926
20101,405
2011430
2012942
2013718
2014370
20151,378
20161,521
2017408
2018498
2019917
2020768
2021908
2022595
2023931
2024560
20251,198

Download the Data

  • Data for records on 1909-12-17: 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).