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Built 2026-10-19 (19 October 2026)

Weather Records on 1 September 1918

31 weather records were set or tied worldwide on 1 September 1918. Highest significance: Vryburg (Pol), ZA.

Key Facts for 1 September 1918

  • On 1 September 1918, 31 weather records were set or tied at long-record stations worldwide.
  • 2 were record highs and 5 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 31 daily.
  • Vryburg (Pol) set a daily record precipitation of 34.5 mm (1.4 in) on 1 September 1918.
  • Across 161 earlier years (1797 to 2026) the same calendar date averaged 444 records.

Record Map

31 stations
Weather records on 1 September 1918 31 station records on 1 September 1918 are marked on the map, coloured by record type.
31 station records on 1 September 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 1 September 1918: highest significance records shown on the map
StationCountryTypeValueSignificance
Vryburg (Pol)South AfricaRecord daily precipitation34.5 mm (1.4 in)44 of 100 (Notable)
BorasSwedenRecord daily precipitation33.5 mm (1.3 in)37 of 100 (Notable)
VarbergSwedenRecord daily precipitation26.8 mm (1.1 in)33 of 100 (Routine)
Marseille Obs. Palais-LonchampFranceRecord daily precipitation38.6 mm (1.5 in)27 of 100 (Routine)
St John'sCanadaRecord low minimum temperature1.7 C (35.1 F)22 of 100 (Routine)
Griquatown (Tnk)South AfricaRecord daily precipitation20.3 mm (0.8 in)20 of 100 (Routine)
Barkly West (Tnk)South AfricaRecord daily precipitation17.8 mm (0.7 in)20 of 100 (Routine)
JamestownSouth AfricaRecord daily precipitation8.4 mm (0.33 in)20 of 100 (Routine)
NewlandsSouth AfricaRecord daily precipitation19.3 mm (0.8 in)20 of 100 (Routine)
Lincoln UNIV Pwr PltUnited StatesRecord daily precipitation24.6 mm (1.0 in)20 of 100 (Routine)
Anticosti SW PointCanadaRecord daily precipitation23.4 mm (0.9 in)19 of 100 (Routine)
Colesberg (Tnk)South AfricaRecord daily precipitation4.8 mm (0.19 in)18 of 100 (Routine)
Philipstown (Tnk)South AfricaRecord daily precipitation4.6 mm (0.18 in)18 of 100 (Routine)
MiddleburgSouth AfricaRecord daily precipitation1.8 mm (0.07 in)17 of 100 (Routine)
SteynsburgSouth AfricaRecord daily precipitation1.3 mm (0.05 in)16 of 100 (Routine)
CornwallUnited StatesRecord daily precipitation40.1 mm (1.6 in)16 of 100 (Routine)
Aberdeen Rd (Sar)South AfricaRecord daily precipitation2.8 mm (0.11 in)15 of 100 (Routine)
Britstown (Pol)South AfricaRecord daily precipitation4.1 mm (0.16 in)15 of 100 (Routine)
VastervikSwedenRecord low minimum temperature5.0 C (41.0 F)15 of 100 (Routine)
Richmond C/K (Tnk)South AfricaRecord daily precipitation8.1 mm (0.32 in)13 of 100 (Routine)
PatersonUnited StatesRecord daily precipitation32.3 mm (1.3 in)12 of 100 (Routine)
Medicine Hat ACanadaRecord low maximum temperature15.0 C (59.0 F)11 of 100 (Routine)
DouglasSouth AfricaRecord daily precipitation5.1 mm (0.20 in)11 of 100 (Routine)
Dordrecht - Tnk 14South AfricaRecord daily precipitation4.6 mm (0.18 in)10 of 100 (Routine)
EllesmereSouth AfricaRecord daily precipitation4.3 mm (0.17 in)10 of 100 (Routine)
Point EscuminacCanadaRecord daily precipitation13.5 mm (0.5 in)7 of 100 (Routine)
HvarCroatiaRecord low maximum temperature23.0 C (73.4 F)5 of 100 (Routine)
New WestminsterCanadaRecord high maximum temperature26.7 C (80.1 F)4 of 100 (Routine)
EdmontonCanadaRecord low minimum temperature-0.6 C (30.9 F)2 of 100 (Routine)
Blue Hill CoopUnited StatesRecord daily precipitation13.0 mm (0.5 in)2 of 100 (Routine)
HalifaxCanadaRecord high minimum temperature16.1 C (61.0 F)1 of 100 (Routine)

Counts by Type and Timescale

31 records
Records on 1 September 1918 by type Records set or tied on 1 September 1918 by type: Highest daily maximum 1, Lowest daily maximum 2, Highest daily minimum 1, Lowest daily minimum 3, Heaviest daily rainfall 24. 0102030Highest daily maximum: 1Lowest daily maximum: 2Highest daily minimum: 1Lowest daily minimum: 3Heaviest daily rainfall: 24Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 1 September 1918 by type: Highest daily maximum 1, Lowest daily maximum 2, Highest daily minimum 1, Lowest daily minimum 3, Heaviest daily rainfall 24.
Records on 1 September 1918 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum2
Highest daily minimum1
Lowest daily minimum3
Heaviest daily rainfall24
Heaviest daily snowfall0
Deepest snow cover0
Records on 1 September 1918 by timescale Records on 1 September 1918 by timescale: all-time 0, monthly 0, daily 31. 010203040all-time: 0monthly: 0daily: 31all-timemonthlydaily
Records on 1 September 1918 by timescale: all-time 0, monthly 0, daily 31.
Records on 1 September 1918 by timescale
TimescaleRecords
all-time0
monthly0
daily31

How Much Records Were Beaten By

27 broken records
Histogram of margins by which records were beaten on 1 September 1918 Margins by which the 27 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 34.5. Ties are not counted. 051015200 to 5: 165 to 10: 210 to 15: 115 to 20: 420 to 25: 325 to 30: 030 to 35: 10 to 55 to 1010 to 1515 to 2020 to 2525 to 3030 to 35
Margins by which the 27 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 34.5. Ties are not counted.
Histogram of margins by which records were beaten on 1 September 1918
MarginRecords
0 to 516
5 to 102
10 to 151
15 to 204
20 to 253
25 to 300
30 to 351

Top 20 by Significance

1 September 1918
Top 20 records on 1 September 1918 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
1 September 1918Vryburg (Pol), ZAdaily rain34.5 mm (1.4 in)34.5 mm (1.4 in)30 years44 of 100 (Notable)
1 September 1918Boras, SEdaily rain33.5 mm (1.3 in)17.0 mm (0.7 in)25 years37 of 100 (Notable)
1 September 1918Varberg, SEdaily rain26.8 mm (1.1 in)15.4 mm (0.6 in)16 years33 of 100 (Routine)
1 September 1918Marseille Obs. Palais-Lonchamp, FRdaily rain38.6 mm (1.5 in)22.2 mm (0.9 in)33 years27 of 100 (Routine)
1 September 1918St John's, CAdaily low min1.7 C (35.1 F)2.7 C (4.9 F)37 years22 of 100 (Routine)
1 September 1918Griquatown (Tnk), ZAdaily rain20.3 mm (0.8 in)20.3 mm (0.8 in)34 years20 of 100 (Routine)
1 September 1918Barkly West (Tnk), ZAdaily rain17.8 mm (0.7 in)17.0 mm (0.7 in)23 years20 of 100 (Routine)
1 September 1918Jamestown, ZAdaily rain8.4 mm (0.33 in)8.4 mm (0.33 in)38 years20 of 100 (Routine)
1 September 1918Newlands, ZAdaily rain19.3 mm (0.8 in)17.0 mm (0.7 in)23 years20 of 100 (Routine)
1 September 1918Lincoln UNIV Pwr Plt, USdaily rain24.6 mm (1.0 in)22.1 mm (0.9 in)11 years20 of 100 (Routine)
1 September 1918Anticosti SW Point, CAdaily rain23.4 mm (0.9 in)4.3 mm (0.17 in)38 years19 of 100 (Routine)
1 September 1918Colesberg (Tnk), ZAdaily rain4.8 mm (0.19 in)4.8 mm (0.19 in)39 years18 of 100 (Routine)
1 September 1918Philipstown (Tnk), ZAdaily rain4.6 mm (0.18 in)4.6 mm (0.18 in)39 years18 of 100 (Routine)
1 September 1918Middleburg, ZAdaily rain1.8 mm (0.07 in)1.8 mm (0.07 in)39 years17 of 100 (Routine)
1 September 1918Steynsburg, ZAdaily rain1.3 mm (0.05 in)1.3 mm (0.05 in)38 years16 of 100 (Routine)
1 September 1918Cornwall, USdaily rain40.1 mm (1.6 in)12.2 mm (0.5 in)8 years16 of 100 (Routine)
1 September 1918Aberdeen Rd (Sar), ZAdaily rain2.8 mm (0.11 in)2.8 mm (0.11 in)33 years15 of 100 (Routine)
1 September 1918Britstown (Pol), ZAdaily rain4.1 mm (0.16 in)4.1 mm (0.16 in)30 years15 of 100 (Routine)
1 September 1918Vastervik, SEdaily low min5.0 C (41.0 F)1.0 C (1.8 F)32 years15 of 100 (Routine)
1 September 1918Richmond C/K (Tnk), ZAdaily rain8.1 mm (0.32 in)4.8 mm (0.19 in)12 years13 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 1918
Records on 09-01 in each year Records set or tied on this calendar date in each year from 1797 to 1918. 1918 had 31 records. 05001,0001,5002,0001797: 11806: 11819: 11827: 11831: 11838: 11851: 11853: 11854: 11857: 11858: 11859: 11860: 21861: 11865: 11866: 11867: 21869: 31871: 11873: 11876: 21877: 21878: 31879: 21881: 51883: 11886: 31887: 31888: 21890: 21892: 21894: 31897: 41898: 101899: 31900: 21901: 141902: 51903: 161904: 91905: 61906: 261907: 141908: 261909: 341910: 221911: 161912: 471913: 321914: 231915: 461916: 161917: 241918: 311919: 191920: 311921: 461922: 671923: 751924: 2101925: 1271926: 1821927: 1361928: 1661929: 3241930: 2641931: 2331932: 5501933: 6221934: 6541935: 5841936: 3851937: 5021938: 3731939: 3031940: 3331941: 4971942: 5321943: 5781944: 3771945: 4971946: 6421947: 5551948: 4601949: 1,1021950: 8491951: 6681952: 6441953: 9371954: 4071955: 4131956: 5041957: 3201958: 4271959: 5191960: 4081961: 5311962: 3681963: 4161964: 6211965: 6571966: 5961967: 1,2631968: 6041969: 4931970: 5021971: 4641972: 5181973: 8741974: 8951975: 9391976: 6271977: 5001978: 8091979: 4591980: 6711981: 6491982: 6421983: 1,1671984: 6191985: 9011986: 9641987: 9091988: 6511989: 8231990: 7491991: 6871992: 1,0101993: 1,1221994: 1,2911995: 1,1651996: 8231997: 1,1611998: 1,1591999: 9252000: 1,6132001: 9042002: 7782003: 1,2542004: 8272005: 9012006: 1,1572007: 9762008: 1,2042009: 1,0032010: 1,3132011: 1,0712012: 8742013: 7752014: 5152015: 6612016: 5222017: 6862018: 3992019: 8002020: 6892021: 7512022: 1,0162023: 7202024: 9382025: 3592026: 5211797186918991916193319501967198420012018
Records set or tied on this calendar date in each year from 1797 to 1918. 1918 had 31 records.
Counts for years before the ledger starts come from the same station rules.
Records on 09-01 in each year
YearRecords
17971
18061
18191
18271
18311
18381
18511
18531
18541
18571
18581
18591
18602
18611
18651
18661
18672
18693
18711
18731
18762
18772
18783
18792
18815
18831
18863
18873
18882
18902
18922
18943
18974
189810
18993
19002
190114
19025
190316
19049
19056
190626
190714
190826
190934
191022
191116
191247
191332
191423
191546
191616
191724
191831
191919
192031
192146
192267
192375
1924210
1925127
1926182
1927136
1928166
1929324
1930264
1931233
1932550
1933622
1934654
1935584
1936385
1937502
1938373
1939303
1940333
1941497
1942532
1943578
1944377
1945497
1946642
1947555
1948460
19491,102
1950849
1951668
1952644
1953937
1954407
1955413
1956504
1957320
1958427
1959519
1960408
1961531
1962368
1963416
1964621
1965657
1966596
19671,263
1968604
1969493
1970502
1971464
1972518
1973874
1974895
1975939
1976627
1977500
1978809
1979459
1980671
1981649
1982642
19831,167
1984619
1985901
1986964
1987909
1988651
1989823
1990749
1991687
19921,010
19931,122
19941,291
19951,165
1996823
19971,161
19981,159
1999925
20001,613
2001904
2002778
20031,254
2004827
2005901
20061,157
2007976
20081,204
20091,003
20101,313
20111,071
2012874
2013775
2014515
2015661
2016522
2017686
2018399
2019800
2020689
2021751
20221,016
2023720
2024938
2025359
2026521

Download the Data

  • Data for records on 1918-09-01: 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).