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Built 2026-10-19 (19 October 2026)

Weather Records on 17 August 1912

31 weather records were set or tied worldwide on 17 August 1912. Highest significance: Chattanooga Wb City, US.

Key Facts for 17 August 1912

  • On 17 August 1912, 31 weather records were set or tied at long-record stations worldwide.
  • 2 were record highs and 22 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 30 daily.
  • Chattanooga Wb City set a daily record precipitation of 59.4 mm (2.3 in) on 17 August 1912.
  • Across 162 earlier years (1797 to 2026) the same calendar date averaged 476 records.

Record Map

31 stations
Weather records on 17 August 1912 31 station records on 17 August 1912 are marked on the map, coloured by record type.
31 station records on 17 August 1912 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 17 August 1912: highest significance records shown on the map
StationCountryTypeValueSignificance
Chattanooga Wb CityUnited StatesRecord daily precipitation59.4 mm (2.3 in)44 of 100 (Notable)
EdmontonCanadaRecord daily precipitation22.1 mm (0.9 in)19 of 100 (Routine)
WoodstockCanadaRecord low maximum temperature15.6 C (60.1 F)18 of 100 (Routine)
EscanabaUnited StatesRecord daily precipitation19.3 mm (0.8 in)17 of 100 (Routine)
Middletown 4 WUnited StatesRecord low minimum temperature5.6 C (42.1 F)16 of 100 (Routine)
Orleansville (Chlef)AlgeriaRecord daily precipitation3.2 mm (0.13 in)15 of 100 (Routine)
Fredericton UnbCanadaRecord low minimum temperature4.4 C (39.9 F)15 of 100 (Routine)
RivaItalyRecord low minimum temperature13.8 C (56.8 F)15 of 100 (Routine)
EdmontonCanadaRecord high minimum temperature14.4 C (57.9 F)14 of 100 (Routine)
GravenhurstCanadaRecord low minimum temperature1.7 C (35.1 F)14 of 100 (Routine)
Point ClarkCanadaRecord daily precipitation18.5 mm (0.7 in)14 of 100 (Routine)
Algiers-Ville/UniversiteAlgeriaRecord daily precipitation0.1 mm (0.00 in)13 of 100 (Routine)
Port StanleyCanadaRecord low maximum temperature19.4 C (66.9 F)13 of 100 (Routine)
Portland Rfc CityUnited StatesRecord daily precipitation3.0 mm (0.12 in)11 of 100 (Routine)
Port DoverCanadaRecord low minimum temperature8.3 C (46.9 F)9 of 100 (Routine)
WellandCanadaRecord low minimum temperature8.3 C (46.9 F)9 of 100 (Routine)
QuebecCanadaRecord low minimum temperature6.7 C (44.1 F)9 of 100 (Routine)
ChathamCanadaRecord low minimum temperature5.6 C (42.1 F)9 of 100 (Routine)
EscanabaUnited StatesRecord low maximum temperature16.1 C (61.0 F)8 of 100 (Routine)
Port DoverCanadaRecord low maximum temperature18.3 C (64.9 F)6 of 100 (Routine)
HamiltonCanadaRecord low maximum temperature17.8 C (64.0 F)6 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord low maximum temperature23.0 C (73.4 F)5 of 100 (Routine)
DalhousieCanadaRecord low minimum temperature5.6 C (42.1 F)3 of 100 (Routine)
Saint JohnCanadaRecord low minimum temperature9.4 C (48.9 F)3 of 100 (Routine)
BuffaloUnited StatesRecord low minimum temperature8.9 C (48.0 F)3 of 100 (Routine)
BrantfordCanadaRecord low maximum temperature18.3 C (64.9 F)2 of 100 (Routine)
PeterboroughCanadaRecord low maximum temperature18.9 C (66.0 F)2 of 100 (Routine)
Dubuque RiverUnited StatesRecord high maximum temperature32.2 C (90.0 F)2 of 100 (Routine)
Kingston Queens UCanadaRecord low minimum temperature8.9 C (48.0 F)1 of 100 (Routine)
PortlandUnited StatesRecord low minimum temperature10.0 C (50.0 F)1 of 100 (Routine)
UmeaSwedenRecord low minimum temperature1.0 C (33.8 F)0 of 100 (Routine)

Counts by Type and Timescale

31 records
Records on 17 August 1912 by type Records set or tied on 17 August 1912 by type: Highest daily maximum 1, Lowest daily maximum 8, Highest daily minimum 1, Lowest daily minimum 14, Heaviest daily rainfall 7. 051015Highest daily maximum: 1Lowest daily maximum: 8Highest daily minimum: 1Lowest daily minimum: 14Heaviest daily rainfall: 7Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 17 August 1912 by type: Highest daily maximum 1, Lowest daily maximum 8, Highest daily minimum 1, Lowest daily minimum 14, Heaviest daily rainfall 7.
Records on 17 August 1912 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum8
Highest daily minimum1
Lowest daily minimum14
Heaviest daily rainfall7
Heaviest daily snowfall0
Deepest snow cover0
Records on 17 August 1912 by timescale Records on 17 August 1912 by timescale: all-time 0, monthly 1, daily 30. 0102030all-time: 0monthly: 1daily: 30all-timemonthlydaily
Records on 17 August 1912 by timescale: all-time 0, monthly 1, daily 30.
Records on 17 August 1912 by timescale
TimescaleRecords
all-time0
monthly1
daily30

How Much Records Were Beaten By

21 broken records
Histogram of margins by which records were beaten on 17 August 1912 Margins by which the 21 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 36.3. Ties are not counted. 051015200 to 5: 195 to 10: 010 to 15: 115 to 20: 020 to 25: 025 to 30: 030 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 21 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 36.3. Ties are not counted.
Histogram of margins by which records were beaten on 17 August 1912
MarginRecords
0 to 519
5 to 100
10 to 151
15 to 200
20 to 250
25 to 300
30 to 350
35 to 401

Top 20 by Significance

17 August 1912
Top 20 records on 17 August 1912 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
17 August 1912Chattanooga Wb City, USdaily rain59.4 mm (2.3 in)36.3 mm (1.4 in)26 years44 of 100 (Notable)
17 August 1912Edmonton, CAdaily rain22.1 mm (0.9 in)11.4 mm (0.4 in)5 years19 of 100 (Routine)
17 August 1912Woodstock, CAdaily low max15.6 C (60.1 F)3.8 C (6.8 F)14 years18 of 100 (Routine)
17 August 1912Escanaba, USdaily rain19.3 mm (0.8 in)2.8 mm (0.11 in)36 years17 of 100 (Routine)
17 August 1912Middletown 4 W, USdaily low min5.6 C (42.1 F)1.6 C (2.9 F)31 years16 of 100 (Routine)
17 August 1912Orleansville (Chlef), DZdaily rain3.2 mm (0.13 in)3.2 mm (0.13 in)32 years15 of 100 (Routine)
17 August 1912Fredericton Unb, CAdaily low min4.4 C (39.9 F)1.2 C (2.2 F)28 years15 of 100 (Routine)
17 August 1912Riva, ITdaily low min13.8 C (56.8 F)1.0 C (1.8 F)28 years15 of 100 (Routine)
17 August 1912Edmonton, CAdaily high min14.4 C (57.9 F)2.2 C (4.0 F)17 years14 of 100 (Routine)
17 August 1912Gravenhurst, CAdaily low min1.7 C (35.1 F)2.7 C (4.9 F)17 years14 of 100 (Routine)
17 August 1912Point Clark, CAdaily rain18.5 mm (0.7 in)4.3 mm (0.17 in)21 years14 of 100 (Routine)
17 August 1912Algiers-Ville/Universite, DZdaily rain0.1 mm (0.00 in)0.1 mm (0.00 in)34 years13 of 100 (Routine)
17 August 1912Port Stanley, CAdaily low max19.4 C (66.9 F)1.7 C (3.1 F)14 years13 of 100 (Routine)
17 August 1912Portland Rfc City, USdaily rain3.0 mm (0.12 in)0.7 mm (0.03 in)22 years11 of 100 (Routine)
17 August 1912Port Dover, CAdaily low min8.3 C (46.9 F)0.6 C (1.1 F)17 years9 of 100 (Routine)
17 August 1912Welland, CAdaily low min8.3 C (46.9 F)1.1 C (2.0 F)10 years9 of 100 (Routine)
17 August 1912Quebec, CAdaily low min6.7 C (44.1 F)0.5 C (0.9 F)17 years9 of 100 (Routine)
17 August 1912Chatham, CAdaily low min5.6 C (42.1 F)1.1 C (2.0 F)7 years9 of 100 (Routine)
17 August 1912Escanaba, USdaily low max16.1 C (61.0 F)0.6 C (1.1 F)13 years8 of 100 (Routine)
17 August 1912Port Dover, CAdaily low max18.3 C (64.9 F)1.1 C (2.0 F)3 years6 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

1797 to 1912
Records on 08-17 in each year Records set or tied on this calendar date in each year from 1797 to 1912. 1912 had 31 records. 05001,0001,5002,0001797: 21802: 21820: 21837: 11838: 21841: 21842: 11845: 21853: 11854: 11856: 11857: 11861: 31862: 11867: 11868: 31869: 11872: 11875: 21876: 51879: 11881: 11882: 11883: 21885: 31886: 11888: 51891: 11892: 31893: 21894: 31895: 21896: 31897: 11898: 51899: 81900: 31901: 141902: 71903: 61904: 21905: 111906: 281907: 91908: 261909: 241910: 171911: 181912: 311913: 791914: 411915: 281916: 331917: 351918: 1121919: 371920: 1101921: 371922: 1691923: 1611924: 1711925: 1301926: 1821927: 2281928: 1311929: 2431930: 1381931: 3021932: 3601933: 2601934: 3771935: 4371936: 6701937: 7261938: 4661939: 3641940: 3411941: 3781942: 4611943: 7431944: 5311945: 3871946: 4331947: 6821948: 4751949: 3711950: 5221951: 4131952: 4701953: 3451954: 6851955: 4651956: 4071957: 5041958: 5191959: 5431960: 5331961: 9981962: 4451963: 6501964: 4101965: 6411966: 4961967: 6791968: 9531969: 5931970: 4671971: 4471972: 1,0441973: 7501974: 5821975: 6121976: 7971977: 1,2161978: 8141979: 1,4641980: 8951981: 1,1121982: 5541983: 1,5741984: 7261985: 9481986: 9161987: 1,1501988: 1,6081989: 6871990: 9491991: 5601992: 1,8131993: 8031994: 1,0381995: 1,7241996: 7521997: 1,5441998: 1,0031999: 6972000: 9942001: 1,1012002: 1,2662003: 9482004: 1,0462005: 7222006: 8142007: 1,6462008: 1,3012009: 9222010: 1,1052011: 9562012: 1,2152013: 8022014: 9972015: 8902016: 7482017: 5442018: 5182019: 4672020: 1,5292021: 8002022: 1,4282023: 1,0322024: 7402025: 5382026: 5351797187218981915193219491966198320002017
Records set or tied on this calendar date in each year from 1797 to 1912. 1912 had 31 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-17 in each year
YearRecords
17972
18022
18202
18371
18382
18412
18421
18452
18531
18541
18561
18571
18613
18621
18671
18683
18691
18721
18752
18765
18791
18811
18821
18832
18853
18861
18885
18911
18923
18932
18943
18952
18963
18971
18985
18998
19003
190114
19027
19036
19042
190511
190628
19079
190826
190924
191017
191118
191231
191379
191441
191528
191633
191735
1918112
191937
1920110
192137
1922169
1923161
1924171
1925130
1926182
1927228
1928131
1929243
1930138
1931302
1932360
1933260
1934377
1935437
1936670
1937726
1938466
1939364
1940341
1941378
1942461
1943743
1944531
1945387
1946433
1947682
1948475
1949371
1950522
1951413
1952470
1953345
1954685
1955465
1956407
1957504
1958519
1959543
1960533
1961998
1962445
1963650
1964410
1965641
1966496
1967679
1968953
1969593
1970467
1971447
19721,044
1973750
1974582
1975612
1976797
19771,216
1978814
19791,464
1980895
19811,112
1982554
19831,574
1984726
1985948
1986916
19871,150
19881,608
1989687
1990949
1991560
19921,813
1993803
19941,038
19951,724
1996752
19971,544
19981,003
1999697
2000994
20011,101
20021,266
2003948
20041,046
2005722
2006814
20071,646
20081,301
2009922
20101,105
2011956
20121,215
2013802
2014997
2015890
2016748
2017544
2018518
2019467
20201,529
2021800
20221,428
20231,032
2024740
2025538
2026535

Download the Data

  • Data for records on 1912-08-17: 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).