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Weather Records on 17 December 1917

21 weather records were set or tied worldwide on 17 December 1917. Highest significance: Portland Rfc City, US.

Key Facts for 17 December 1917

  • On 17 December 1917, 21 weather records were set or tied at long-record stations worldwide.
  • 5 were record highs and 10 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 2 monthly and 19 daily.
  • Portland Rfc City set a daily record high minimum temperature of 10.6 C (51.1 F) on 17 December 1917.
  • Across 160 earlier years (1793 to 2025) the same calendar date averaged 466 records.

Record Map

21 stations
Weather records on 17 December 1917 21 station records on 17 December 1917 are marked on the map, coloured by record type.
21 station records on 17 December 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 17 December 1917: highest significance records shown on the map
StationCountryTypeValueSignificance
Portland Rfc CityUnited StatesRecord high minimum temperature10.6 C (51.1 F)20 of 100 (Routine)
Gotska SandonSwedenRecord daily precipitation6.3 mm (0.25 in)18 of 100 (Routine)
Portland Rfc CityUnited StatesRecord high maximum temperature15.0 C (59.0 F)18 of 100 (Routine)
WellandCanadaRecord low minimum temperature-21.1 C (-6.0 F)16 of 100 (Routine)
GalwayIrelandRecord low minimum temperature-5.6 C (21.9 F)16 of 100 (Routine)
Wilmington Wb CityUnited StatesRecord low maximum temperature2.8 C (37.0 F)15 of 100 (Routine)
Nikolaevsk-Na-AmureRussiaRecord high minimum temperature-1.5 C (29.3 F)14 of 100 (Routine)
VanersborgSwedenRecord low maximum temperature-6.5 C (20.3 F)14 of 100 (Routine)
DurhamUnited KingdomRecord daily precipitation12.0 mm (0.5 in)14 of 100 (Routine)
Winnemucca APUnited StatesRecord high maximum temperature12.8 C (55.0 F)14 of 100 (Routine)
BorasSwedenRecord low minimum temperature-12.0 C (10.4 F)13 of 100 (Routine)
ChicoutimiCanadaRecord low minimum temperature-33.9 C (-29.0 F)11 of 100 (Routine)
SheffieldUnited KingdomRecord low minimum temperature-3.3 C (26.1 F)11 of 100 (Routine)
Kardella (Fleetwood)AustraliaRecord daily precipitation4.8 mm (0.19 in)10 of 100 (Routine)
Nerchinskij ZavodRussiaRecord daily precipitation1.1 mm (0.04 in)10 of 100 (Routine)
LucknowCanadaRecord low minimum temperature-17.2 C (1.0 F)8 of 100 (Routine)
Camden 1United StatesRecord daily precipitation7.4 mm (0.29 in)7 of 100 (Routine)
Adelaide West TerraceAustraliaRecord high minimum temperature21.8 C (71.2 F)6 of 100 (Routine)
Marseille Obs. Palais-LonchampFranceRecord daily precipitation27.9 mm (1.1 in)5 of 100 (Routine)
Greenville Dwtn APUnited StatesRecord low maximum temperature-2.8 C (27.0 F)3 of 100 (Routine)
AltonCanadaRecord low maximum temperature-10.6 C (12.9 F)1 of 100 (Routine)

Counts by Type and Timescale

21 records
Records on 17 December 1917 by type Records set or tied on 17 December 1917 by type: Highest daily maximum 2, Lowest daily maximum 4, Highest daily minimum 3, Lowest daily minimum 6, Heaviest daily rainfall 6. 0246Highest daily maximum: 2Lowest daily maximum: 4Highest daily minimum: 3Lowest daily minimum: 6Heaviest daily rainfall: 6Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 17 December 1917 by type: Highest daily maximum 2, Lowest daily maximum 4, Highest daily minimum 3, Lowest daily minimum 6, Heaviest daily rainfall 6.
Records on 17 December 1917 by type
Record typeRecords
Highest daily maximum2
Lowest daily maximum4
Highest daily minimum3
Lowest daily minimum6
Heaviest daily rainfall6
Heaviest daily snowfall0
Deepest snow cover0
Records on 17 December 1917 by timescale Records on 17 December 1917 by timescale: all-time 0, monthly 2, daily 19. 05101520all-time: 0monthly: 2daily: 19all-timemonthlydaily
Records on 17 December 1917 by timescale: all-time 0, monthly 2, daily 19.
Records on 17 December 1917 by timescale
TimescaleRecords
all-time0
monthly2
daily19

How Much Records Were Beaten By

19 broken records
Histogram of margins by which records were beaten on 17 December 1917 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 5.6. Ties are not counted. 024680 to 1: 61 to 2: 82 to 3: 43 to 4: 04 to 5: 05 to 6: 10 to 11 to 22 to 33 to 44 to 55 to 6
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 5.6. Ties are not counted.
Histogram of margins by which records were beaten on 17 December 1917
MarginRecords
0 to 16
1 to 28
2 to 34
3 to 40
4 to 50
5 to 61

Top 20 by Significance

17 December 1917
Top 20 records on 17 December 1917 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
17 December 1917Portland Rfc City, USdaily high min10.6 C (51.1 F)2.3 C (4.1 F)35 years20 of 100 (Routine)
17 December 1917Gotska Sandon, SEdaily rain6.3 mm (0.25 in)2.1 mm (0.08 in)33 years18 of 100 (Routine)
17 December 1917Portland Rfc City, USdaily high max15.0 C (59.0 F)1.7 C (3.1 F)35 years18 of 100 (Routine)
17 December 1917Welland, CAdaily low min-21.1 C (-6.0 F)0.5 C (0.9 F)40 years16 of 100 (Routine)
17 December 1917Galway, IEdaily low min-5.6 C (21.9 F)1.2 C (2.2 F)26 years16 of 100 (Routine)
17 December 1917Wilmington Wb City, USdaily low max2.8 C (37.0 F)1.1 C (2.0 F)34 years15 of 100 (Routine)
17 December 1917Nikolaevsk-Na-Amure, RUmonthly high min-1.5 C (29.3 F)1.1 C (2.0 F)0 years14 of 100 (Routine)
17 December 1917Vanersborg, SEdaily low max-6.5 C (20.3 F)0.5 C (0.9 F)34 years14 of 100 (Routine)
17 December 1917Durham, GBdaily rain12.0 mm (0.5 in)2.1 mm (0.08 in)20 years14 of 100 (Routine)
17 December 1917Winnemucca AP, USdaily high max12.8 C (55.0 F)0.6 C (1.1 F)31 years14 of 100 (Routine)
17 December 1917Boras, SEdaily low min-12.0 C (10.4 F)1.5 C (2.7 F)26 years13 of 100 (Routine)
17 December 1917Chicoutimi, CAdaily low min-33.9 C (-29.0 F)0.6 C (1.1 F)26 years11 of 100 (Routine)
17 December 1917Sheffield, GBdaily low min-3.3 C (26.1 F)1.0 C (1.8 F)17 years11 of 100 (Routine)
17 December 1917Kardella (Fleetwood), AUdaily rain4.8 mm (0.19 in)0.7 mm (0.03 in)23 years10 of 100 (Routine)
17 December 1917Nerchinskij Zavod, RUdaily rain1.1 mm (0.04 in)0.1 mm (0.00 in)23 years10 of 100 (Routine)
17 December 1917Lucknow, CAdaily low min-17.2 C (1.0 F)1.6 C (2.9 F)12 years8 of 100 (Routine)
17 December 1917Camden 1, USdaily rain7.4 mm (0.29 in)5.6 mm (0.22 in)4 years7 of 100 (Routine)
17 December 1917Adelaide West Terrace, AUdaily high min21.8 C (71.2 F)1.2 C (2.2 F)4 years6 of 100 (Routine)
17 December 1917Marseille Obs. Palais-Lonchamp, FRdaily rain27.9 mm (1.1 in)2.9 mm (0.11 in)2 years5 of 100 (Routine)
17 December 1917Greenville Dwtn AP, USmonthly low max (Tie)-2.8 C (27.0 F)tie0 years3 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 1917
Records on 12-17 in each year Records set or tied on this calendar date in each year from 1793 to 1917. 1917 had 21 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 1917. 1917 had 21 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 1917-12-17: 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).