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Built 2026-10-19 (19 October 2026)

Weather Records on 1 September 1917

24 weather records were set or tied worldwide on 1 September 1917. Highest significance: West Terschelling, NL.

Key Facts for 1 September 1917

  • On 1 September 1917, 24 weather records were set or tied at long-record stations worldwide.
  • 2 were record highs and 4 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 24 daily.
  • West Terschelling set a daily record precipitation of 34.4 mm (1.4 in) on 1 September 1917.
  • Across 161 earlier years (1797 to 2026) the same calendar date averaged 444 records.

Record Map

24 stations
Weather records on 1 September 1917 24 station records on 1 September 1917 are marked on the map, coloured by record type.
24 station records on 1 September 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 1 September 1917: highest significance records shown on the map
StationCountryTypeValueSignificance
West TerschellingNetherlandsRecord daily precipitation34.4 mm (1.4 in)38 of 100 (Notable)
Gulargambone (Yalcogrin St)AustraliaRecord daily precipitation44.7 mm (1.8 in)29 of 100 (Routine)
Greenville Dwtn APUnited StatesRecord daily precipitation64.0 mm (2.5 in)23 of 100 (Routine)
GorkiBelarusRecord daily precipitation20.6 mm (0.8 in)20 of 100 (Routine)
Burrawang South StationAustraliaRecord daily precipitation22.6 mm (0.9 in)20 of 100 (Routine)
VestervigDenmarkRecord daily precipitation24.1 mm (0.9 in)20 of 100 (Routine)
Montgomery Wb CityUnited StatesRecord daily precipitation26.7 mm (1.1 in)18 of 100 (Routine)
LenoirUnited StatesRecord daily precipitation53.3 mm (2.1 in)18 of 100 (Routine)
YarramAustraliaRecord daily precipitation11.7 mm (0.5 in)16 of 100 (Routine)
StratfordAustraliaRecord daily precipitation5.6 mm (0.22 in)15 of 100 (Routine)
Nordby (Fano)DenmarkRecord daily precipitation28.0 mm (1.1 in)15 of 100 (Routine)
Tumbarumba 1AustraliaRecord daily precipitation27.9 mm (1.1 in)14 of 100 (Routine)
World Trade CtrUnited StatesRecord daily precipitation43.7 mm (1.7 in)14 of 100 (Routine)
Officer (Jesmond Dene)AustraliaRecord daily precipitation7.4 mm (0.29 in)12 of 100 (Routine)
GobarralongAustraliaRecord daily precipitation19.1 mm (0.8 in)11 of 100 (Routine)
Ny City Cntrl ParkUnited StatesRecord daily precipitation38.1 mm (1.5 in)10 of 100 (Routine)
PrzhevalskKyrgyzstanRecord daily precipitation4.0 mm (0.16 in)8 of 100 (Routine)
Medicine Hat ACanadaRecord low minimum temperature3.9 C (39.0 F)7 of 100 (Routine)
MinlatonAustraliaRecord daily precipitation6.4 mm (0.25 in)4 of 100 (Routine)
Jacksonville Wb CityUnited StatesRecord high minimum temperature25.0 C (77.0 F)3 of 100 (Routine)
Calgary Int'l ACanadaRecord low minimum temperature0.0 C (32.0 F)2 of 100 (Routine)
GalwayIrelandRecord low maximum temperature15.6 C (60.1 F)2 of 100 (Routine)
HaparandaSwedenRecord high maximum temperature18.0 C (64.4 F)2 of 100 (Routine)
Swift CurrentCanadaRecord low minimum temperature2.8 C (37.0 F)0 of 100 (Routine)

Counts by Type and Timescale

24 records
Records on 1 September 1917 by type Records set or tied on 1 September 1917 by type: Highest daily maximum 1, Lowest daily maximum 1, Highest daily minimum 1, Lowest daily minimum 3, Heaviest daily rainfall 18. 05101520Highest daily maximum: 1Lowest daily maximum: 1Highest daily minimum: 1Lowest daily minimum: 3Heaviest daily rainfall: 18Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 1 September 1917 by type: Highest daily maximum 1, Lowest daily maximum 1, Highest daily minimum 1, Lowest daily minimum 3, Heaviest daily rainfall 18.
Records on 1 September 1917 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum1
Highest daily minimum1
Lowest daily minimum3
Heaviest daily rainfall18
Heaviest daily snowfall0
Deepest snow cover0
Records on 1 September 1917 by timescale Records on 1 September 1917 by timescale: all-time 0, monthly 0, daily 24. 0102030all-time: 0monthly: 0daily: 24all-timemonthlydaily
Records on 1 September 1917 by timescale: all-time 0, monthly 0, daily 24.
Records on 1 September 1917 by timescale
TimescaleRecords
all-time0
monthly0
daily24

How Much Records Were Beaten By

19 broken records
Histogram of margins by which records were beaten on 1 September 1917 Margins by which the 19 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 29.0. Ties are not counted. 0358100 to 5: 95 to 10: 410 to 15: 215 to 20: 120 to 25: 125 to 30: 20 to 55 to 1010 to 1515 to 2020 to 2525 to 30
Margins by which the 19 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 29.0. Ties are not counted.
Histogram of margins by which records were beaten on 1 September 1917
MarginRecords
0 to 59
5 to 104
10 to 152
15 to 201
20 to 251
25 to 302

Top 20 by Significance

1 September 1917
Top 20 records on 1 September 1917 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
1 September 1917West Terschelling, NLdaily rain34.4 mm (1.4 in)19.9 mm (0.8 in)8 years38 of 100 (Notable)
1 September 1917Gulargambone (Yalcogrin St), AUdaily rain44.7 mm (1.8 in)29.0 mm (1.1 in)4 years29 of 100 (Routine)
1 September 1917Greenville Dwtn AP, USdaily rain64.0 mm (2.5 in)22.1 mm (0.9 in)23 years23 of 100 (Routine)
1 September 1917Gorki, BYdaily rain20.6 mm (0.8 in)12.1 mm (0.5 in)16 years20 of 100 (Routine)
1 September 1917Burrawang South Station, AUdaily rain22.6 mm (0.9 in)9.1 mm (0.36 in)39 years20 of 100 (Routine)
1 September 1917Vestervig, DKdaily rain24.1 mm (0.9 in)4.0 mm (0.16 in)32 years20 of 100 (Routine)
1 September 1917Montgomery Wb City, USdaily rain26.7 mm (1.1 in)9.9 mm (0.39 in)28 years18 of 100 (Routine)
1 September 1917Lenoir, USdaily rain53.3 mm (2.1 in)25.4 mm (1.0 in)23 years18 of 100 (Routine)
1 September 1917Yarram, AUdaily rain11.7 mm (0.5 in)3.8 mm (0.15 in)29 years16 of 100 (Routine)
1 September 1917Stratford, AUdaily rain5.6 mm (0.22 in)1.3 mm (0.05 in)34 years15 of 100 (Routine)
1 September 1917Nordby (Fano), DKdaily rain28.0 mm (1.1 in)6.3 mm (0.25 in)4 years15 of 100 (Routine)
1 September 1917Tumbarumba 1, AUdaily rain27.9 mm (1.1 in)2.5 mm (0.10 in)28 years14 of 100 (Routine)
1 September 1917World Trade Ctr, USdaily rain43.7 mm (1.7 in)14.0 mm (0.6 in)7 years14 of 100 (Routine)
1 September 1917Officer (Jesmond Dene), AUdaily rain7.4 mm (0.29 in)1.3 mm (0.05 in)27 years12 of 100 (Routine)
1 September 1917Gobarralong, AUdaily rain19.1 mm (0.8 in)0.6 mm (0.02 in)28 years11 of 100 (Routine)
1 September 1917Ny City Cntrl Park, USdaily rain38.1 mm (1.5 in)7.6 mm (0.30 in)7 years10 of 100 (Routine)
1 September 1917Przhevalsk, KGdaily rain4.0 mm (0.16 in)1.2 mm (0.05 in)14 years8 of 100 (Routine)
1 September 1917Medicine Hat A, CAdaily low min3.9 C (39.0 F)0.5 C (0.9 F)10 years7 of 100 (Routine)
1 September 1917Minlaton, AUdaily rain6.4 mm (0.25 in)0.3 mm (0.01 in)6 years4 of 100 (Routine)
1 September 1917Jacksonville Wb City, USdaily high min (Tie)25.0 C (77.0 F)tie38 years3 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 1917
Records on 09-01 in each year Records set or tied on this calendar date in each year from 1797 to 1917. 1917 had 24 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 1917. 1917 had 24 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 1917-09-01: 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).