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Weather Records on 7 August 1917

21 weather records were set or tied worldwide on 7 August 1917. Highest significance: Newlands, ZA.

Key Facts for 7 August 1917

  • On 7 August 1917, 21 weather records were set or tied at long-record stations worldwide.
  • 4 were record highs and 3 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 2 monthly and 19 daily.
  • Newlands set a monthly record daily precipitation of 30.2 mm (1.2 in) on 7 August 1917.
  • Across 163 earlier years (1808 to 2026) the same calendar date averaged 473 records.

Record Map

21 stations
Weather records on 7 August 1917 21 station records on 7 August 1917 are marked on the map, coloured by record type.
21 station records on 7 August 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 7 August 1917: highest significance records shown on the map
StationCountryTypeValueSignificance
NewlandsSouth AfricaRecord daily precipitation30.2 mm (1.2 in)41 of 100 (Notable)
Madison Wb CityUnited StatesRecord daily precipitation48.8 mm (1.9 in)40 of 100 (Notable)
PesaroItalyRecord daily precipitation28.0 mm (1.1 in)26 of 100 (Routine)
East London -Signal STNSouth AfricaRecord daily precipitation21.8 mm (0.9 in)20 of 100 (Routine)
Little Rock St CapitolUnited StatesRecord daily precipitation30.5 mm (1.2 in)19 of 100 (Routine)
FerraraItalyRecord daily precipitation33.0 mm (1.3 in)18 of 100 (Routine)
EkaterinburgRussiaRecord low minimum temperature2.1 C (35.8 F)18 of 100 (Routine)
Stornoway AirportUnited KingdomRecord high maximum temperature21.7 C (71.1 F)15 of 100 (Routine)
Dohne (Sar)South AfricaRecord daily precipitation7.6 mm (0.30 in)13 of 100 (Routine)
Huron Rgnl APUnited StatesRecord low maximum temperature20.0 C (68.0 F)13 of 100 (Routine)
ZametchinoRussiaRecord high minimum temperature16.5 C (61.7 F)11 of 100 (Routine)
Peddie (Mag)South AfricaRecord daily precipitation4.3 mm (0.17 in)11 of 100 (Routine)
Isidinge (Bos)South AfricaRecord daily precipitation7.1 mm (0.28 in)11 of 100 (Routine)
Saint JohnCanadaRecord high maximum temperature28.9 C (84.0 F)10 of 100 (Routine)
Kologha (Bos)South AfricaRecord daily precipitation3.3 mm (0.13 in)9 of 100 (Routine)
Morris W Cntrl Rsch & OutreachUnited StatesRecord low maximum temperature19.4 C (66.9 F)9 of 100 (Routine)
PrzhevalskKyrgyzstanRecord daily precipitation9.9 mm (0.39 in)8 of 100 (Routine)
Cape Moreton LighthouseAustraliaRecord daily precipitation40.1 mm (1.6 in)6 of 100 (Routine)
Malin HeadIrelandRecord daily precipitation9.1 mm (0.36 in)6 of 100 (Routine)
IdaSouth AfricaRecord daily precipitation2.3 mm (0.09 in)6 of 100 (Routine)
KaresuandoSwedenRecord high maximum temperature28.5 C (83.3 F)3 of 100 (Routine)

Counts by Type and Timescale

21 records
Records on 7 August 1917 by type Records set or tied on 7 August 1917 by type: Highest daily maximum 3, Lowest daily maximum 2, Highest daily minimum 1, Lowest daily minimum 1, Heaviest daily rainfall 14. 051015Highest daily maximum: 3Lowest daily maximum: 2Highest daily minimum: 1Lowest daily minimum: 1Heaviest daily rainfall: 14Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 7 August 1917 by type: Highest daily maximum 3, Lowest daily maximum 2, Highest daily minimum 1, Lowest daily minimum 1, Heaviest daily rainfall 14.
Records on 7 August 1917 by type
Record typeRecords
Highest daily maximum3
Lowest daily maximum2
Highest daily minimum1
Lowest daily minimum1
Heaviest daily rainfall14
Heaviest daily snowfall0
Deepest snow cover0
Records on 7 August 1917 by timescale Records on 7 August 1917 by timescale: all-time 0, monthly 2, daily 19. 05101520all-time: 0monthly: 2daily: 19all-timemonthlydaily
Records on 7 August 1917 by timescale: all-time 0, monthly 2, daily 19.
Records on 7 August 1917 by timescale
TimescaleRecords
all-time0
monthly2
daily19

How Much Records Were Beaten By

20 broken records
Histogram of margins by which records were beaten on 7 August 1917 Margins by which the 20 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 39.4. Ties are not counted. 0510150 to 5: 135 to 10: 310 to 15: 115 to 20: 220 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 20 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 39.4. Ties are not counted.
Histogram of margins by which records were beaten on 7 August 1917
MarginRecords
0 to 513
5 to 103
10 to 151
15 to 202
20 to 250
25 to 300
30 to 350
35 to 401

Top 20 by Significance

7 August 1917
Top 20 records on 7 August 1917 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
7 August 1917Newlands, ZAmonthly rain30.2 mm (1.2 in)9.6 mm (0.38 in)22 years41 of 100 (Notable)
7 August 1917Madison Wb City, USdaily rain48.8 mm (1.9 in)39.4 mm (1.6 in)28 years40 of 100 (Notable)
7 August 1917Pesaro, ITdaily rain28.0 mm (1.1 in)14.4 mm (0.6 in)36 years26 of 100 (Routine)
7 August 1917East London -Signal STN, ZAdaily rain21.8 mm (0.9 in)18.5 mm (0.7 in)16 years20 of 100 (Routine)
7 August 1917Little Rock St Capitol, USdaily rain30.5 mm (1.2 in)7.4 mm (0.29 in)39 years19 of 100 (Routine)
7 August 1917Ferrara, ITdaily rain33.0 mm (1.3 in)15.8 mm (0.6 in)8 years18 of 100 (Routine)
7 August 1917Ekaterinburg, RUdaily low min2.1 C (35.8 F)3.6 C (6.5 F)17 years18 of 100 (Routine)
7 August 1917Stornoway Airport, GBdaily high max21.7 C (71.1 F)0.6 C (1.1 F)32 years15 of 100 (Routine)
7 August 1917Dohne (Sar), ZAdaily rain7.6 mm (0.30 in)1.5 mm (0.06 in)32 years13 of 100 (Routine)
7 August 1917Huron Rgnl AP, USdaily low max20.0 C (68.0 F)2.8 C (5.0 F)14 years13 of 100 (Routine)
7 August 1917Zametchino, RUdaily high min16.5 C (61.7 F)0.8 C (1.4 F)21 years11 of 100 (Routine)
7 August 1917Peddie (Mag), ZAdaily rain4.3 mm (0.17 in)0.5 mm (0.02 in)25 years11 of 100 (Routine)
7 August 1917Isidinge (Bos), ZAdaily rain7.1 mm (0.28 in)5.8 mm (0.23 in)15 years11 of 100 (Routine)
7 August 1917Saint John, CAdaily high max28.9 C (84.0 F)1.1 C (2.0 F)11 years10 of 100 (Routine)
7 August 1917Kologha (Bos), ZAdaily rain3.3 mm (0.13 in)2.0 mm (0.08 in)15 years9 of 100 (Routine)
7 August 1917Morris W Cntrl Rsch & Outreach, USdaily low max19.4 C (66.9 F)1.7 C (3.1 F)12 years9 of 100 (Routine)
7 August 1917Przhevalsk, KGdaily rain9.9 mm (0.39 in)1.4 mm (0.06 in)16 years8 of 100 (Routine)
7 August 1917Cape Moreton Lighthouse, AUdaily rain40.1 mm (1.6 in)2.8 mm (0.11 in)6 years6 of 100 (Routine)
7 August 1917Malin Head, IEdaily rain9.1 mm (0.36 in)0.2 mm (0.01 in)10 years6 of 100 (Routine)
7 August 1917Ida, ZAdaily rain2.3 mm (0.09 in)0.3 mm (0.01 in)11 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

1808 to 1917
Records on 08-07 in each year Records set or tied on this calendar date in each year from 1808 to 1917. 1917 had 21 records. 05001,0001,5002,0001808: 11812: 11815: 11816: 11817: 11833: 21844: 11845: 11848: 11857: 31858: 11859: 21861: 11866: 11868: 11869: 31870: 21875: 11876: 51879: 11880: 21882: 11883: 11884: 21886: 11887: 21888: 51889: 21891: 31892: 31893: 11894: 11895: 71896: 21897: 21898: 41899: 11900: 61901: 31902: 51903: 171904: 81905: 81906: 91907: 101908: 131909: 111910: 11911: 361912: 311913: 391914: 241915: 401916: 501917: 211918: 1081919: 361920: 361921: 551922: 611923: 1011924: 1281925: 811926: 1151927: 1091928: 1881929: 1811930: 4861931: 3571932: 2491933: 3101934: 6081935: 5071936: 2861937: 4461938: 5681939: 5611940: 2711941: 3051942: 3401943: 6011944: 3321945: 8821946: 5001947: 4611948: 7561949: 5871950: 5411951: 5621952: 5561953: 3781954: 5891955: 5361956: 3211957: 8681958: 5711959: 3561960: 3441961: 3561962: 7181963: 5221964: 4461965: 5521966: 4001967: 7011968: 6001969: 5231970: 6521971: 9691972: 1,1721973: 5681974: 7461975: 1,1771976: 1,1681977: 6171978: 1,2101979: 5591980: 8711981: 8551982: 7271983: 1,2071984: 8401985: 1,0881986: 5441987: 1,1461988: 8971989: 1,4721990: 1,6251991: 1,2171992: 1,2361993: 1,0401994: 1,2621995: 1,5211996: 1,1071997: 1,4601998: 1,1831999: 9502000: 8712001: 1,3862002: 9072003: 1,2442004: 1,4002005: 8822006: 9232007: 1,3092008: 9182009: 1,1212010: 1,0982011: 1,2822012: 6882013: 6652014: 5012015: 1,0272016: 5052017: 9542018: 6362019: 6092020: 6052021: 3972022: 8802023: 1,2212024: 8352025: 7332026: 1,0471808187518971914193119481965198219992016
Records set or tied on this calendar date in each year from 1808 to 1917. 1917 had 21 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-07 in each year
YearRecords
18081
18121
18151
18161
18171
18332
18441
18451
18481
18573
18581
18592
18611
18661
18681
18693
18702
18751
18765
18791
18802
18821
18831
18842
18861
18872
18885
18892
18913
18923
18931
18941
18957
18962
18972
18984
18991
19006
19013
19025
190317
19048
19058
19069
190710
190813
190911
19101
191136
191231
191339
191424
191540
191650
191721
1918108
191936
192036
192155
192261
1923101
1924128
192581
1926115
1927109
1928188
1929181
1930486
1931357
1932249
1933310
1934608
1935507
1936286
1937446
1938568
1939561
1940271
1941305
1942340
1943601
1944332
1945882
1946500
1947461
1948756
1949587
1950541
1951562
1952556
1953378
1954589
1955536
1956321
1957868
1958571
1959356
1960344
1961356
1962718
1963522
1964446
1965552
1966400
1967701
1968600
1969523
1970652
1971969
19721,172
1973568
1974746
19751,177
19761,168
1977617
19781,210
1979559
1980871
1981855
1982727
19831,207
1984840
19851,088
1986544
19871,146
1988897
19891,472
19901,625
19911,217
19921,236
19931,040
19941,262
19951,521
19961,107
19971,460
19981,183
1999950
2000871
20011,386
2002907
20031,244
20041,400
2005882
2006923
20071,309
2008918
20091,121
20101,098
20111,282
2012688
2013665
2014501
20151,027
2016505
2017954
2018636
2019609
2020605
2021397
2022880
20231,221
2024835
2025733
20261,047

Download the Data

  • Data for records on 1917-08-07: 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).