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Built 2026-10-19 (19 October 2026)

Weather Records on 8 August 1917

35 weather records were set or tied worldwide on 8 August 1917. Highest significance: Armagh, GB.

Key Facts for 8 August 1917

  • On 8 August 1917, 35 weather records were set or tied at long-record stations worldwide.
  • 11 were record highs and 4 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 3 monthly and 32 daily.
  • Armagh set a daily record precipitation of 31.2 mm (1.2 in) on 8 August 1917.
  • Across 162 earlier years (1793 to 2026) the same calendar date averaged 470 records.

Record Map

35 stations
Weather records on 8 August 1917 35 station records on 8 August 1917 are marked on the map, coloured by record type.
35 station records on 8 August 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 8 August 1917: highest significance records shown on the map
StationCountryTypeValueSignificance
ArmaghUnited KingdomRecord daily precipitation31.2 mm (1.2 in)34 of 100 (Routine)
Barkly West (Tnk)South AfricaRecord daily precipitation25.9 mm (1.0 in)32 of 100 (Routine)
Malin HeadIrelandRecord daily precipitation27.8 mm (1.1 in)30 of 100 (Routine)
AltonCanadaRecord daily precipitation41.1 mm (1.6 in)23 of 100 (Routine)
HarnosandSwedenRecord high minimum temperature17.0 C (62.6 F)23 of 100 (Routine)
Calgary Int'l ACanadaRecord low minimum temperature1.1 C (34.0 F)21 of 100 (Routine)
Gotska SandonSwedenRecord daily precipitation16.0 mm (0.6 in)20 of 100 (Routine)
DurhamUnited KingdomRecord daily precipitation19.5 mm (0.8 in)20 of 100 (Routine)
SheffieldUnited KingdomRecord daily precipitation22.4 mm (0.9 in)20 of 100 (Routine)
DouglasSouth AfricaRecord daily precipitation21.6 mm (0.9 in)20 of 100 (Routine)
GysingeSwedenRecord daily precipitation20.9 mm (0.8 in)20 of 100 (Routine)
YarmouthCanadaRecord high maximum temperature25.6 C (78.1 F)20 of 100 (Routine)
BjurakerSwedenRecord high minimum temperature15.0 C (59.0 F)19 of 100 (Routine)
Mackay Post OfficeAustraliaRecord daily precipitation15.0 mm (0.6 in)17 of 100 (Routine)
Huron Rgnl APUnited StatesRecord low maximum temperature20.0 C (68.0 F)17 of 100 (Routine)
Port Douglas - Warner StAustraliaRecord daily precipitation7.4 mm (0.29 in)16 of 100 (Routine)
Griquatown (Tnk)South AfricaRecord daily precipitation3.6 mm (0.14 in)16 of 100 (Routine)
JokkmokkSwedenRecord high maximum temperature26.2 C (79.2 F)15 of 100 (Routine)
KaresuandoSwedenRecord high maximum temperature29.0 C (84.2 F)15 of 100 (Routine)
Portland Rfc CityUnited StatesRecord high maximum temperature33.3 C (91.9 F)15 of 100 (Routine)
Uniondale (Tnk)South AfricaRecord daily precipitation2.5 mm (0.10 in)14 of 100 (Routine)
Santa FeUnited StatesRecord high maximum temperature31.7 C (89.1 F)14 of 100 (Routine)
Cairns Post OfficeAustraliaRecord daily precipitation9.7 mm (0.38 in)13 of 100 (Routine)
SvegSwedenRecord daily precipitation11.8 mm (0.5 in)13 of 100 (Routine)
Pointe Au PereCanadaRecord high maximum temperature28.3 C (82.9 F)11 of 100 (Routine)
StockholmSwedenRecord low maximum temperature15.0 C (59.0 F)10 of 100 (Routine)
PiteaSwedenRecord high minimum temperature16.5 C (61.7 F)9 of 100 (Routine)
SarnaSwedenRecord daily precipitation14.5 mm (0.6 in)8 of 100 (Routine)
AshevilleUnited StatesRecord daily precipitation20.3 mm (0.8 in)7 of 100 (Routine)
Herberton White StAustraliaRecord daily precipitation3.6 mm (0.14 in)6 of 100 (Routine)
HaparandaSwedenRecord high maximum temperature28.0 C (82.4 F)6 of 100 (Routine)
London SouthCanadaRecord daily precipitation8.6 mm (0.34 in)3 of 100 (Routine)
BeatriceCanadaRecord high minimum temperature18.9 C (66.0 F)2 of 100 (Routine)
SouthamptonCanadaRecord daily precipitation11.9 mm (0.5 in)2 of 100 (Routine)
Green BayUnited StatesRecord low maximum temperature21.1 C (70.0 F)2 of 100 (Routine)

Counts by Type and Timescale

35 records
Records on 8 August 1917 by type Records set or tied on 8 August 1917 by type: Highest daily maximum 7, Lowest daily maximum 3, Highest daily minimum 4, Lowest daily minimum 1, Heaviest daily rainfall 20. 05101520Highest daily maximum: 7Lowest daily maximum: 3Highest daily minimum: 4Lowest daily minimum: 1Heaviest daily rainfall: 20Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 8 August 1917 by type: Highest daily maximum 7, Lowest daily maximum 3, Highest daily minimum 4, Lowest daily minimum 1, Heaviest daily rainfall 20.
Records on 8 August 1917 by type
Record typeRecords
Highest daily maximum7
Lowest daily maximum3
Highest daily minimum4
Lowest daily minimum1
Heaviest daily rainfall20
Heaviest daily snowfall0
Deepest snow cover0
Records on 8 August 1917 by timescale Records on 8 August 1917 by timescale: all-time 0, monthly 3, daily 32. 010203040all-time: 0monthly: 3daily: 32all-timemonthlydaily
Records on 8 August 1917 by timescale: all-time 0, monthly 3, daily 32.
Records on 8 August 1917 by timescale
TimescaleRecords
all-time0
monthly3
daily32

How Much Records Were Beaten By

32 broken records
Histogram of margins by which records were beaten on 8 August 1917 Margins by which the 32 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 23.6. Ties are not counted. 01020300 to 5: 225 to 10: 510 to 15: 415 to 20: 020 to 25: 10 to 55 to 1010 to 1515 to 2020 to 25
Margins by which the 32 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 23.6. Ties are not counted.
Histogram of margins by which records were beaten on 8 August 1917
MarginRecords
0 to 522
5 to 105
10 to 154
15 to 200
20 to 251

Top 20 by Significance

8 August 1917
Top 20 records on 8 August 1917 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
8 August 1917Armagh, GBdaily rain31.2 mm (1.2 in)8.6 mm (0.34 in)41 years34 of 100 (Routine)
8 August 1917Barkly West (Tnk), ZAmonthly rain25.9 mm (1.0 in)6.3 mm (0.25 in)25 years32 of 100 (Routine)
8 August 1917Malin Head, IEdaily rain27.8 mm (1.1 in)13.1 mm (0.5 in)7 years30 of 100 (Routine)
8 August 1917Alton, CAdaily rain41.1 mm (1.6 in)23.6 mm (0.9 in)4 years23 of 100 (Routine)
8 August 1917Harnosand, SEdaily high min17.0 C (62.6 F)3.0 C (5.4 F)34 years23 of 100 (Routine)
8 August 1917Calgary Int'l A, CAdaily low min1.1 C (34.0 F)2.8 C (5.0 F)31 years21 of 100 (Routine)
8 August 1917Gotska Sandon, SEdaily rain16.0 mm (0.6 in)10.4 mm (0.4 in)36 years20 of 100 (Routine)
8 August 1917Durham, GBdaily rain19.5 mm (0.8 in)10.6 mm (0.4 in)24 years20 of 100 (Routine)
8 August 1917Sheffield, GBdaily rain22.4 mm (0.9 in)8.9 mm (0.35 in)33 years20 of 100 (Routine)
8 August 1917Douglas, ZAmonthly rain21.6 mm (0.9 in)9.7 mm (0.38 in)16 years20 of 100 (Routine)
8 August 1917Gysinge, SEdaily rain20.9 mm (0.8 in)7.3 mm (0.29 in)29 years20 of 100 (Routine)
8 August 1917Yarmouth, CAdaily high max25.6 C (78.1 F)1.2 C (2.2 F)36 years20 of 100 (Routine)
8 August 1917Bjuraker, SEdaily high min15.0 C (59.0 F)2.0 C (3.6 F)34 years19 of 100 (Routine)
8 August 1917Mackay Post Office, AUdaily rain15.0 mm (0.6 in)14.5 mm (0.6 in)14 years17 of 100 (Routine)
8 August 1917Huron Rgnl AP, USdaily low max20.0 C (68.0 F)2.8 C (5.0 F)28 years17 of 100 (Routine)
8 August 1917Port Douglas - Warner St, AUdaily rain7.4 mm (0.29 in)4.1 mm (0.16 in)17 years16 of 100 (Routine)
8 August 1917Griquatown (Tnk), ZAdaily rain3.6 mm (0.14 in)3.6 mm (0.14 in)33 years16 of 100 (Routine)
8 August 1917Jokkmokk, SEdaily high max26.2 C (79.2 F)1.2 C (2.2 F)32 years15 of 100 (Routine)
8 August 1917Karesuando, SEmonthly high max29.0 C (84.2 F)0.5 C (0.9 F)4 years15 of 100 (Routine)
8 August 1917Portland Rfc City, USdaily high max33.3 C (91.9 F)1.1 C (2.0 F)32 years15 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 08-08 in each year Records set or tied on this calendar date in each year from 1793 to 1917. 1917 had 35 records. 01,0002,0003,0001793: 11798: 11800: 11808: 31815: 11833: 11843: 11844: 21845: 11854: 11859: 31860: 11861: 11863: 11865: 11868: 21869: 11871: 11873: 31875: 21876: 21877: 11878: 11879: 21880: 11884: 31888: 31890: 21891: 11892: 21893: 11895: 81896: 21897: 51898: 101899: 81900: 111901: 21902: 21903: 201904: 131905: 71906: 91907: 91908: 131909: 341910: 51911: 381912: 571913: 281914: 71915: 471916: 391917: 351918: 1601919: 281920: 1381921: 421922: 741923: 701924: 991925: 1491926: 1901927: 2781928: 2521929: 1661930: 8011931: 3181932: 2341933: 2281934: 7341935: 5081936: 3591937: 3621938: 8551939: 6711940: 3331941: 3241942: 6141943: 5121944: 3521945: 5721946: 3491947: 4421948: 5431949: 6751950: 5161951: 5131952: 3051953: 3931954: 5581955: 5371956: 2731957: 5171958: 4961959: 4701960: 3991961: 2701962: 5671963: 6011964: 4671965: 5201966: 5981967: 4321968: 8681969: 5841970: 7031971: 6461972: 1,0731973: 4461974: 7261975: 1,0411976: 1,2021977: 6071978: 9761979: 4661980: 9191981: 9641982: 7111983: 1,1101984: 6191985: 7261986: 5751987: 8611988: 7331989: 2,3981990: 1,1241991: 1,2301992: 1,2671993: 6541994: 1,0091995: 1,5031996: 8141997: 1,3811998: 1,3041999: 1,2482000: 9612001: 1,5572002: 1,0592003: 1,4322004: 1,1152005: 8822006: 8422007: 1,6602008: 8342009: 1,1122010: 1,2542011: 1,2562012: 7542013: 8412014: 5422015: 8352016: 5602017: 8312018: 7312019: 7222020: 8942021: 5022022: 7112023: 9792024: 7742025: 7522026: 1,0001793187118981915193219491966198320002017
Records set or tied on this calendar date in each year from 1793 to 1917. 1917 had 35 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-08 in each year
YearRecords
17931
17981
18001
18083
18151
18331
18431
18442
18451
18541
18593
18601
18611
18631
18651
18682
18691
18711
18733
18752
18762
18771
18781
18792
18801
18843
18883
18902
18911
18922
18931
18958
18962
18975
189810
18998
190011
19012
19022
190320
190413
19057
19069
19079
190813
190934
19105
191138
191257
191328
19147
191547
191639
191735
1918160
191928
1920138
192142
192274
192370
192499
1925149
1926190
1927278
1928252
1929166
1930801
1931318
1932234
1933228
1934734
1935508
1936359
1937362
1938855
1939671
1940333
1941324
1942614
1943512
1944352
1945572
1946349
1947442
1948543
1949675
1950516
1951513
1952305
1953393
1954558
1955537
1956273
1957517
1958496
1959470
1960399
1961270
1962567
1963601
1964467
1965520
1966598
1967432
1968868
1969584
1970703
1971646
19721,073
1973446
1974726
19751,041
19761,202
1977607
1978976
1979466
1980919
1981964
1982711
19831,110
1984619
1985726
1986575
1987861
1988733
19892,398
19901,124
19911,230
19921,267
1993654
19941,009
19951,503
1996814
19971,381
19981,304
19991,248
2000961
20011,557
20021,059
20031,432
20041,115
2005882
2006842
20071,660
2008834
20091,112
20101,254
20111,256
2012754
2013841
2014542
2015835
2016560
2017831
2018731
2019722
2020894
2021502
2022711
2023979
2024774
2025752
20261,000

Download the Data

  • Data for records on 1917-08-08: 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).