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Built 2026-10-19 (19 October 2026)

Weather Records on 4 September 1917

40 weather records were set or tied worldwide on 4 September 1917. Highest significance: Mount Pleasant, AU.

Key Facts for 4 September 1917

  • On 4 September 1917, 40 weather records were set or tied at long-record stations worldwide.
  • 8 were record highs and 6 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 39 daily.
  • Mount Pleasant set a daily record precipitation of 23.4 mm (0.9 in) on 4 September 1917.
  • Across 165 earlier years (1802 to 2026) the same calendar date averaged 454 records.

Record Map

40 stations
Weather records on 4 September 1917 40 station records on 4 September 1917 are marked on the map, coloured by record type.
40 station records on 4 September 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 4 September 1917: highest significance records shown on the map
StationCountryTypeValueSignificance
Mount PleasantAustraliaRecord daily precipitation23.4 mm (0.9 in)20 of 100 (Routine)
Cape Jervis LighthouseAustraliaRecord daily precipitation12.2 mm (0.5 in)20 of 100 (Routine)
WarookaAustraliaRecord daily precipitation10.7 mm (0.4 in)20 of 100 (Routine)
StansburyAustraliaRecord daily precipitation12.2 mm (0.5 in)20 of 100 (Routine)
Santa FeUnited StatesRecord high minimum temperature15.6 C (60.1 F)18 of 100 (Routine)
Adelaide (Salisbury Bowling ClAustraliaRecord daily precipitation6.9 mm (0.27 in)17 of 100 (Routine)
Murray Bridge ComparisonAustraliaRecord daily precipitation8.4 mm (0.33 in)17 of 100 (Routine)
Edithburgh Post OfficeAustraliaRecord daily precipitation7.6 mm (0.30 in)16 of 100 (Routine)
CallingtonAustraliaRecord daily precipitation16.8 mm (0.7 in)16 of 100 (Routine)
HambantotaSri LankaRecord high minimum temperature25.2 C (77.4 F)16 of 100 (Routine)
Mount BarkerAustraliaRecord daily precipitation27.2 mm (1.1 in)15 of 100 (Routine)
YorketownAustraliaRecord daily precipitation11.2 mm (0.4 in)14 of 100 (Routine)
MillicentAustraliaRecord daily precipitation10.9 mm (0.4 in)13 of 100 (Routine)
Goulburn (Kippilaw)AustraliaRecord daily precipitation10.2 mm (0.4 in)13 of 100 (Routine)
Camden 1United StatesRecord daily precipitation15.2 mm (0.6 in)13 of 100 (Routine)
Wilmington Wb CityUnited StatesRecord daily precipitation29.0 mm (1.1 in)13 of 100 (Routine)
Echunga Golf CourseAustraliaRecord daily precipitation18.0 mm (0.7 in)12 of 100 (Routine)
AltonCanadaRecord low maximum temperature18.9 C (66.0 F)12 of 100 (Routine)
Cleveland 2717 EuclidUnited StatesRecord low maximum temperature17.2 C (63.0 F)12 of 100 (Routine)
StockwellAustraliaRecord daily precipitation4.1 mm (0.16 in)11 of 100 (Routine)
NairneAustraliaRecord daily precipitation25.7 mm (1.0 in)11 of 100 (Routine)
Brisbane Regional OfficeAustraliaRecord low minimum temperature6.7 C (44.1 F)11 of 100 (Routine)
EllistonAustraliaRecord daily precipitation7.9 mm (0.31 in)9 of 100 (Routine)
GreenockAustraliaRecord daily precipitation4.3 mm (0.17 in)9 of 100 (Routine)
TanundaAustraliaRecord daily precipitation9.1 mm (0.36 in)9 of 100 (Routine)
HahndorfAustraliaRecord daily precipitation25.4 mm (1.0 in)9 of 100 (Routine)
KaresuandoSwedenRecord high maximum temperature19.0 C (66.2 F)9 of 100 (Routine)
Corny Point LighthouseAustraliaRecord daily precipitation7.6 mm (0.30 in)6 of 100 (Routine)
Pirie (Bos)South AfricaRecord daily precipitation4.6 mm (0.18 in)5 of 100 (Routine)
St John'sCanadaRecord high minimum temperature14.4 C (57.9 F)3 of 100 (Routine)
HaparandaSwedenRecord high maximum temperature18.0 C (64.4 F)3 of 100 (Routine)
UmeaSwedenRecord high minimum temperature12.0 C (53.6 F)3 of 100 (Routine)
Inverell ComparisonAustraliaRecord low minimum temperature-3.1 C (26.4 F)2 of 100 (Routine)
Port DoverCanadaRecord low minimum temperature6.7 C (44.1 F)2 of 100 (Routine)
St. PetersburgRussiaRecord high minimum temperature14.7 C (58.5 F)2 of 100 (Routine)
PiteaSwedenRecord high minimum temperature11.0 C (51.8 F)2 of 100 (Routine)
KadinaAustraliaRecord daily precipitation2.5 mm (0.10 in)1 of 100 (Routine)
AngastonAustraliaRecord daily precipitation4.3 mm (0.17 in)1 of 100 (Routine)
MeningieAustraliaRecord daily precipitation4.1 mm (0.16 in)1 of 100 (Routine)
State CollegeUnited StatesRecord low maximum temperature19.4 C (66.9 F)1 of 100 (Routine)

Counts by Type and Timescale

40 records
Records on 4 September 1917 by type Records set or tied on 4 September 1917 by type: Highest daily maximum 2, Lowest daily maximum 3, Highest daily minimum 6, Lowest daily minimum 3, Heaviest daily rainfall 26. 0102030Highest daily maximum: 2Lowest daily maximum: 3Highest daily minimum: 6Lowest daily minimum: 3Heaviest daily rainfall: 26Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 4 September 1917 by type: Highest daily maximum 2, Lowest daily maximum 3, Highest daily minimum 6, Lowest daily minimum 3, Heaviest daily rainfall 26.
Records on 4 September 1917 by type
Record typeRecords
Highest daily maximum2
Lowest daily maximum3
Highest daily minimum6
Lowest daily minimum3
Heaviest daily rainfall26
Heaviest daily snowfall0
Deepest snow cover0
Records on 4 September 1917 by timescale Records on 4 September 1917 by timescale: all-time 0, monthly 1, daily 39. 010203040all-time: 0monthly: 1daily: 39all-timemonthlydaily
Records on 4 September 1917 by timescale: all-time 0, monthly 1, daily 39.
Records on 4 September 1917 by timescale
TimescaleRecords
all-time0
monthly1
daily39

How Much Records Were Beaten By

29 broken records
Histogram of margins by which records were beaten on 4 September 1917 Margins by which the 29 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 13.7. Ties are not counted. 0358100 to 2: 102 to 4: 84 to 6: 66 to 8: 28 to 10: 110 to 12: 012 to 14: 20 to 22 to 44 to 66 to 88 to 1010 to 1212 to 14
Margins by which the 29 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 13.7. Ties are not counted.
Histogram of margins by which records were beaten on 4 September 1917
MarginRecords
0 to 210
2 to 48
4 to 66
6 to 82
8 to 101
10 to 120
12 to 142

Top 20 by Significance

4 September 1917
Top 20 records on 4 September 1917 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
4 September 1917Mount Pleasant, AUdaily rain23.4 mm (0.9 in)13.7 mm (0.5 in)2 years20 of 100 (Routine)
4 September 1917Cape Jervis Lighthouse, AUdaily rain12.2 mm (0.5 in)5.8 mm (0.23 in)21 years20 of 100 (Routine)
4 September 1917Warooka, AUdaily rain10.7 mm (0.4 in)4.6 mm (0.18 in)23 years20 of 100 (Routine)
4 September 1917Stansbury, AUdaily rain12.2 mm (0.5 in)8.6 mm (0.34 in)2 years20 of 100 (Routine)
4 September 1917Santa Fe, USdaily high min15.6 C (60.1 F)1.2 C (2.2 F)37 years18 of 100 (Routine)
4 September 1917Adelaide (Salisbury Bowling Cl, AUdaily rain6.9 mm (0.27 in)3.1 mm (0.12 in)25 years17 of 100 (Routine)
4 September 1917Murray Bridge Comparison, AUdaily rain8.4 mm (0.33 in)4.3 mm (0.17 in)23 years17 of 100 (Routine)
4 September 1917Edithburgh Post Office, AUdaily rain7.6 mm (0.30 in)2.8 mm (0.11 in)22 years16 of 100 (Routine)
4 September 1917Callington, AUdaily rain16.8 mm (0.7 in)6.1 mm (0.24 in)7 years16 of 100 (Routine)
4 September 1917Hambantota, LKdaily high min25.2 C (77.4 F)0.1 C (0.2 F)38 years16 of 100 (Routine)
4 September 1917Mount Barker, AUdaily rain27.2 mm (1.1 in)7.9 mm (0.31 in)2 years15 of 100 (Routine)
4 September 1917Yorketown, AUdaily rain11.2 mm (0.4 in)4.1 mm (0.16 in)12 years14 of 100 (Routine)
4 September 1917Millicent, AUdaily rain10.9 mm (0.4 in)1.5 mm (0.06 in)21 years13 of 100 (Routine)
4 September 1917Goulburn (Kippilaw), AUdaily rain10.2 mm (0.4 in)3.8 mm (0.15 in)22 years13 of 100 (Routine)
4 September 1917Camden 1, USdaily rain15.2 mm (0.6 in)5.0 mm (0.20 in)27 years13 of 100 (Routine)
4 September 1917Wilmington Wb City, USdaily rain29.0 mm (1.1 in)13.3 mm (0.5 in)10 years13 of 100 (Routine)
4 September 1917Echunga Golf Course, AUdaily rain18.0 mm (0.7 in)2.8 mm (0.11 in)21 years12 of 100 (Routine)
4 September 1917Alton, CAdaily low max18.9 C (66.0 F)1.1 C (2.0 F)23 years12 of 100 (Routine)
4 September 1917Cleveland 2717 Euclid, USdaily low max17.2 C (63.0 F)0.6 C (1.1 F)25 years12 of 100 (Routine)
4 September 1917Stockwell, AUdaily rain4.1 mm (0.16 in)1.3 mm (0.05 in)20 years11 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

1802 to 1917
Records on 09-04 in each year Records set or tied on this calendar date in each year from 1802 to 1917. 1917 had 40 records. 01,0002,0003,0001802: 11805: 11823: 11833: 11837: 11839: 11845: 11847: 11850: 11854: 11856: 11857: 11858: 11861: 11863: 11864: 11867: 11868: 11869: 21871: 11872: 41874: 11875: 11877: 11880: 41881: 11883: 21885: 31887: 11888: 21889: 11890: 11891: 51894: 41895: 61896: 11897: 41898: 91899: 41900: 11901: 41902: 41903: 21904: 71905: 181906: 161907: 221908: 91909: 231910: 911911: 251912: 291913: 291914: 191915: 371916: 241917: 401918: 961919: 481920: 1051921: 1051922: 621923: 3251924: 1671925: 3391926: 2561927: 681928: 3411929: 3711930: 1021931: 4771932: 4291933: 4241934: 3931935: 5141936: 3091937: 4111938: 2361939: 4341940: 2871941: 5281942: 3231943: 4721944: 3411945: 5421946: 4311947: 6181948: 4091949: 3701950: 6421951: 4041952: 6451953: 8691954: 3721955: 4651956: 5861957: 2501958: 3841959: 3161960: 5521961: 9091962: 7331963: 4431964: 5071965: 6111966: 4281967: 7861968: 5461969: 5101970: 6441971: 7171972: 5131973: 5301974: 2,2791975: 4321976: 5821977: 3861978: 9401979: 4611980: 3551981: 5821982: 6171983: 1,0401984: 1,1071985: 9151986: 6631987: 6851988: 1,2591989: 6811990: 7871991: 7081992: 1,1321993: 8591994: 1,0011995: 1,2871996: 9071997: 1,4521998: 1,5641999: 1,4792000: 1,3362001: 8332002: 7672003: 1,0942004: 8982005: 9982006: 1,2682007: 1,0772008: 1,3352009: 9142010: 1,8042011: 1,3102012: 1,2092013: 6302014: 4612015: 8932016: 5972017: 8812018: 7582019: 6162020: 9572021: 5442022: 1,2562023: 1,2902024: 9852025: 6352026: 1,2221802186818951912192919461963198019972014
Records set or tied on this calendar date in each year from 1802 to 1917. 1917 had 40 records.
Counts for years before the ledger starts come from the same station rules.
Records on 09-04 in each year
YearRecords
18021
18051
18231
18331
18371
18391
18451
18471
18501
18541
18561
18571
18581
18611
18631
18641
18671
18681
18692
18711
18724
18741
18751
18771
18804
18811
18832
18853
18871
18882
18891
18901
18915
18944
18956
18961
18974
18989
18994
19001
19014
19024
19032
19047
190518
190616
190722
19089
190923
191091
191125
191229
191329
191419
191537
191624
191740
191896
191948
1920105
1921105
192262
1923325
1924167
1925339
1926256
192768
1928341
1929371
1930102
1931477
1932429
1933424
1934393
1935514
1936309
1937411
1938236
1939434
1940287
1941528
1942323
1943472
1944341
1945542
1946431
1947618
1948409
1949370
1950642
1951404
1952645
1953869
1954372
1955465
1956586
1957250
1958384
1959316
1960552
1961909
1962733
1963443
1964507
1965611
1966428
1967786
1968546
1969510
1970644
1971717
1972513
1973530
19742,279
1975432
1976582
1977386
1978940
1979461
1980355
1981582
1982617
19831,040
19841,107
1985915
1986663
1987685
19881,259
1989681
1990787
1991708
19921,132
1993859
19941,001
19951,287
1996907
19971,452
19981,564
19991,479
20001,336
2001833
2002767
20031,094
2004898
2005998
20061,268
20071,077
20081,335
2009914
20101,804
20111,310
20121,209
2013630
2014461
2015893
2016597
2017881
2018758
2019616
2020957
2021544
20221,256
20231,290
2024985
2025635
20261,222

Download the Data

  • Data for records on 1917-09-04: 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).