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Built 2026-10-19 (19 October 2026)

Weather Records on 17 August 1915

28 weather records were set or tied worldwide on 17 August 1915. Highest significance: Anticosti West Point, CA.

Key Facts for 17 August 1915

  • On 17 August 1915, 28 weather records were set or tied at long-record stations worldwide.
  • 3 were record highs and 18 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 28 daily.
  • Anticosti West Point set a daily record precipitation of 46.5 mm (1.8 in) on 17 August 1915.
  • Across 162 earlier years (1797 to 2026) the same calendar date averaged 477 records.

Record Map

28 stations
Weather records on 17 August 1915 28 station records on 17 August 1915 are marked on the map, coloured by record type.
28 station records on 17 August 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 17 August 1915: highest significance records shown on the map
StationCountryTypeValueSignificance
Anticosti West PointCanadaRecord daily precipitation46.5 mm (1.8 in)28 of 100 (Routine)
ArhangelskRussiaRecord daily precipitation14.8 mm (0.6 in)20 of 100 (Routine)
GorkiBelarusRecord daily precipitation19.0 mm (0.7 in)19 of 100 (Routine)
Houston Wb CityUnited StatesRecord low maximum temperature25.0 C (77.0 F)19 of 100 (Routine)
MalmesburySouth AfricaRecord daily precipitation13.0 mm (0.5 in)17 of 100 (Routine)
Madison Wb CityUnited StatesRecord low maximum temperature18.9 C (66.0 F)17 of 100 (Routine)
Nemours (Ghazaouet)AlgeriaRecord high minimum temperature24.0 C (75.2 F)14 of 100 (Routine)
StonecliffeCanadaRecord low maximum temperature18.3 C (64.9 F)14 of 100 (Routine)
VastervikSwedenRecord low maximum temperature15.8 C (60.4 F)14 of 100 (Routine)
Milwaukee Wb CityUnited StatesRecord low maximum temperature18.3 C (64.9 F)14 of 100 (Routine)
MagdeburgGermanyRecord low maximum temperature14.5 C (58.1 F)13 of 100 (Routine)
Medicine Hat ACanadaRecord high maximum temperature33.3 C (91.9 F)12 of 100 (Routine)
MaccueCanadaRecord daily precipitation28.4 mm (1.1 in)12 of 100 (Routine)
Jena SternwarteGermanyRecord low maximum temperature15.6 C (60.1 F)10 of 100 (Routine)
St. PetersburgRussiaRecord low maximum temperature13.1 C (55.6 F)9 of 100 (Routine)
KristianstadSwedenRecord low maximum temperature16.0 C (60.8 F)9 of 100 (Routine)
BjurakerSwedenRecord low minimum temperature4.7 C (40.5 F)9 of 100 (Routine)
GorlitzGermanyRecord low maximum temperature14.5 C (58.1 F)8 of 100 (Routine)
BrantfordCanadaRecord low minimum temperature7.2 C (45.0 F)7 of 100 (Routine)
StockholmSwedenRecord low maximum temperature13.0 C (55.4 F)7 of 100 (Routine)
Stromsfoss SluseNorwayRecord daily precipitation18.4 mm (0.7 in)6 of 100 (Routine)
Leipzig-HolzhausenGermanyRecord low maximum temperature15.2 C (59.4 F)5 of 100 (Routine)
SouthamptonCanadaRecord low maximum temperature17.2 C (63.0 F)3 of 100 (Routine)
Gabo Island LighthouseAustraliaRecord daily precipitation7.6 mm (0.30 in)2 of 100 (Routine)
La Crosse Wb CityUnited StatesRecord low maximum temperature21.1 C (70.0 F)2 of 100 (Routine)
Medicine Hat ACanadaRecord high minimum temperature15.0 C (59.0 F)1 of 100 (Routine)
KarlshamnSwedenRecord low maximum temperature16.0 C (60.8 F)1 of 100 (Routine)
Dubuque RiverUnited StatesRecord low maximum temperature21.1 C (70.0 F)1 of 100 (Routine)

Counts by Type and Timescale

28 records
Records on 17 August 1915 by type Records set or tied on 17 August 1915 by type: Highest daily maximum 1, Lowest daily maximum 16, Highest daily minimum 2, Lowest daily minimum 2, Heaviest daily rainfall 7. 05101520Highest daily maximum: 1Lowest daily maximum: 16Highest daily minimum: 2Lowest daily minimum: 2Heaviest daily rainfall: 7Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 17 August 1915 by type: Highest daily maximum 1, Lowest daily maximum 16, Highest daily minimum 2, Lowest daily minimum 2, Heaviest daily rainfall 7.
Records on 17 August 1915 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum16
Highest daily minimum2
Lowest daily minimum2
Heaviest daily rainfall7
Heaviest daily snowfall0
Deepest snow cover0
Records on 17 August 1915 by timescale Records on 17 August 1915 by timescale: all-time 0, monthly 0, daily 28. 0102030all-time: 0monthly: 0daily: 28all-timemonthlydaily
Records on 17 August 1915 by timescale: all-time 0, monthly 0, daily 28.
Records on 17 August 1915 by timescale
TimescaleRecords
all-time0
monthly0
daily28

How Much Records Were Beaten By

22 broken records
Histogram of margins by which records were beaten on 17 August 1915 Margins by which the 22 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 20.8. Ties are not counted. 051015200 to 5: 195 to 10: 110 to 15: 115 to 20: 020 to 25: 10 to 55 to 1010 to 1515 to 2020 to 25
Margins by which the 22 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 20.8. Ties are not counted.
Histogram of margins by which records were beaten on 17 August 1915
MarginRecords
0 to 519
5 to 101
10 to 151
15 to 200
20 to 251

Top 20 by Significance

17 August 1915
Top 20 records on 17 August 1915 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
17 August 1915Anticosti West Point, CAdaily rain46.5 mm (1.8 in)20.8 mm (0.8 in)12 years28 of 100 (Routine)
17 August 1915Arhangelsk, RUdaily rain14.8 mm (0.6 in)4.8 mm (0.19 in)31 years20 of 100 (Routine)
17 August 1915Gorki, BYdaily rain19.0 mm (0.7 in)5.7 mm (0.22 in)27 years19 of 100 (Routine)
17 August 1915Houston Wb City, USdaily low max25.0 C (77.0 F)2.8 C (5.0 F)20 years19 of 100 (Routine)
17 August 1915Malmesbury, ZAdaily rain13.0 mm (0.5 in)4.6 mm (0.18 in)28 years17 of 100 (Routine)
17 August 1915Madison Wb City, USdaily low max18.9 C (66.0 F)1.1 C (2.0 F)39 years17 of 100 (Routine)
17 August 1915Nemours (Ghazaouet), DZdaily high min24.0 C (75.2 F)1.0 C (1.8 F)24 years14 of 100 (Routine)
17 August 1915Stonecliffe, CAdaily low max18.3 C (64.9 F)1.1 C (2.0 F)28 years14 of 100 (Routine)
17 August 1915Vastervik, SEdaily low max15.8 C (60.4 F)1.2 C (2.2 F)29 years14 of 100 (Routine)
17 August 1915Milwaukee Wb City, USdaily low max18.3 C (64.9 F)1.1 C (2.0 F)26 years14 of 100 (Routine)
17 August 1915Magdeburg, DEdaily low max14.5 C (58.1 F)1.0 C (1.8 F)27 years13 of 100 (Routine)
17 August 1915Medicine Hat A, CAdaily high max33.3 C (91.9 F)0.5 C (0.9 F)27 years12 of 100 (Routine)
17 August 1915Maccue, CAdaily rain28.4 mm (1.1 in)10.1 mm (0.4 in)1 year12 of 100 (Routine)
17 August 1915Jena Sternwarte, DEdaily low max15.6 C (60.1 F)0.5 C (0.9 F)1 year10 of 100 (Routine)
17 August 1915St. Petersburg, RUdaily low max13.1 C (55.6 F)0.3 C (0.5 F)21 years9 of 100 (Routine)
17 August 1915Kristianstad, SEdaily low max16.0 C (60.8 F)0.5 C (0.9 F)18 years9 of 100 (Routine)
17 August 1915Bjuraker, SEdaily low min4.7 C (40.5 F)0.3 C (0.5 F)21 years9 of 100 (Routine)
17 August 1915Gorlitz, DEdaily low max14.5 C (58.1 F)0.3 C (0.5 F)18 years8 of 100 (Routine)
17 August 1915Brantford, CAdaily low min7.2 C (45.0 F)0.6 C (1.1 F)8 years7 of 100 (Routine)
17 August 1915Stockholm, SEdaily low max13.0 C (55.4 F)1.0 C (1.8 F)4 years7 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 1915
Records on 08-17 in each year Records set or tied on this calendar date in each year from 1797 to 1915. 1915 had 28 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 1915. 1915 had 28 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 1915-08-17: 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).