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Weather Records on 9 September 1917

44 weather records were set or tied worldwide on 9 September 1917. Highest significance: Nebo, AU.

Key Facts for 9 September 1917

  • On 9 September 1917, 44 weather records were set or tied at long-record stations worldwide.
  • 14 were record highs and 18 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 43 daily.
  • Nebo set a daily record precipitation of 18.8 mm (0.7 in) on 9 September 1917.
  • Across 162 earlier years (1806 to 2026) the same calendar date averaged 464 records.

Record Map

44 stations
Weather records on 9 September 1917 44 station records on 9 September 1917 are marked on the map, coloured by record type.
44 station records on 9 September 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 9 September 1917: highest significance records shown on the map
StationCountryTypeValueSignificance
NeboAustraliaRecord daily precipitation18.8 mm (0.7 in)20 of 100 (Routine)
CallingtonAustraliaRecord daily precipitation19.1 mm (0.8 in)20 of 100 (Routine)
Hughenden Post OfficeAustraliaRecord daily precipitation14.5 mm (0.6 in)20 of 100 (Routine)
EscanabaUnited StatesRecord low maximum temperature9.4 C (48.9 F)20 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord low minimum temperature-1.1 C (30.0 F)18 of 100 (Routine)
TbilisiGeorgiaRecord daily precipitation17.4 mm (0.7 in)18 of 100 (Routine)
Fort NationalAlgeriaRecord high maximum temperature37.0 C (98.6 F)17 of 100 (Routine)
Heinersreuth-VollhofGermanyRecord daily precipitation26.2 mm (1.0 in)17 of 100 (Routine)
HarnosandSwedenRecord high minimum temperature11.0 C (51.8 F)15 of 100 (Routine)
PortlandUnited StatesRecord low minimum temperature5.6 C (42.1 F)15 of 100 (Routine)
YarmouthCanadaRecord low minimum temperature1.7 C (35.1 F)14 of 100 (Routine)
HaparandaSwedenRecord high minimum temperature11.0 C (51.8 F)14 of 100 (Routine)
OrebroSwedenRecord high minimum temperature13.5 C (56.3 F)14 of 100 (Routine)
BjurakerSwedenRecord high minimum temperature11.1 C (52.0 F)14 of 100 (Routine)
Madison Wb CityUnited StatesRecord low maximum temperature13.9 C (57.0 F)14 of 100 (Routine)
Darwin Post OfficeAustraliaRecord high minimum temperature25.6 C (78.1 F)13 of 100 (Routine)
LucknowCanadaRecord low maximum temperature13.9 C (57.0 F)13 of 100 (Routine)
BorasSwedenRecord high minimum temperature12.5 C (54.5 F)13 of 100 (Routine)
Skara 1SwedenRecord high minimum temperature12.0 C (53.6 F)13 of 100 (Routine)
SvegSwedenRecord high minimum temperature10.0 C (50.0 F)13 of 100 (Routine)
MalvernUnited StatesRecord daily precipitation30.5 mm (1.2 in)13 of 100 (Routine)
Setauket StrongUnited StatesRecord low minimum temperature10.0 C (50.0 F)13 of 100 (Routine)
Woody IslandAustraliaRecord daily precipitation5.8 mm (0.23 in)12 of 100 (Routine)
MagdeburgGermanyRecord high minimum temperature15.5 C (59.9 F)12 of 100 (Routine)
PiteaSwedenRecord high minimum temperature11.0 C (51.8 F)12 of 100 (Routine)
Clermont Sirius StAustraliaRecord daily precipitation5.6 mm (0.22 in)11 of 100 (Routine)
Port ArthurCanadaRecord low maximum temperature11.1 C (52.0 F)11 of 100 (Routine)
HalifaxCanadaRecord low minimum temperature0.6 C (33.1 F)11 of 100 (Routine)
St AlbansCanadaRecord low minimum temperature-3.9 C (25.0 F)10 of 100 (Routine)
Green BayUnited StatesRecord low minimum temperature3.3 C (37.9 F)10 of 100 (Routine)
Medicine Hat ACanadaRecord daily precipitation6.4 mm (0.25 in)9 of 100 (Routine)
Adelaide West TerraceAustraliaRecord low minimum temperature5.4 C (41.7 F)8 of 100 (Routine)
Cardwell Marine PdeAustraliaRecord daily precipitation14.7 mm (0.6 in)8 of 100 (Routine)
Green BayUnited StatesRecord low maximum temperature12.8 C (55.0 F)8 of 100 (Routine)
ArnsbergGermanyRecord high minimum temperature14.5 C (58.1 F)6 of 100 (Routine)
St Lawrence Post OfficeAustraliaRecord daily precipitation1.0 mm (0.04 in)4 of 100 (Routine)
Stony MountainCanadaRecord low minimum temperature-2.8 C (27.0 F)3 of 100 (Routine)
Atlantic City MarinaUnited StatesRecord low maximum temperature18.3 C (64.9 F)3 of 100 (Routine)
Jamberoo (Lorna)AustraliaRecord daily precipitation5.1 mm (0.20 in)2 of 100 (Routine)
Qu'appelleCanadaRecord low minimum temperature-4.4 C (24.1 F)2 of 100 (Routine)
MinnedosaCanadaRecord low minimum temperature-3.9 C (25.0 F)2 of 100 (Routine)
VanersborgSwedenRecord high minimum temperature13.0 C (55.4 F)2 of 100 (Routine)
Huron Rgnl APUnited StatesRecord low maximum temperature15.0 C (59.0 F)2 of 100 (Routine)
GavleSwedenRecord high minimum temperature12.0 C (53.6 F)1 of 100 (Routine)

Counts by Type and Timescale

44 records
Records on 9 September 1917 by type Records set or tied on 9 September 1917 by type: Highest daily maximum 1, Lowest daily maximum 7, Highest daily minimum 13, Lowest daily minimum 11, Heaviest daily rainfall 12. 051015Highest daily maximum: 1Lowest daily maximum: 7Highest daily minimum: 13Lowest daily minimum: 11Heaviest daily rainfall: 12Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 9 September 1917 by type: Highest daily maximum 1, Lowest daily maximum 7, Highest daily minimum 13, Lowest daily minimum 11, Heaviest daily rainfall 12.
Records on 9 September 1917 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum7
Highest daily minimum13
Lowest daily minimum11
Heaviest daily rainfall12
Heaviest daily snowfall0
Deepest snow cover0
Records on 9 September 1917 by timescale Records on 9 September 1917 by timescale: all-time 0, monthly 1, daily 43. 0204060all-time: 0monthly: 1daily: 43all-timemonthlydaily
Records on 9 September 1917 by timescale: all-time 0, monthly 1, daily 43.
Records on 9 September 1917 by timescale
TimescaleRecords
all-time0
monthly1
daily43

How Much Records Were Beaten By

36 broken records
Histogram of margins by which records were beaten on 9 September 1917 Margins by which the 36 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 18.3. Ties are not counted. 01020300 to 3: 273 to 5: 45 to 8: 18 to 10: 210 to 13: 113 to 15: 015 to 18: 018 to 20: 10 to 33 to 55 to 88 to 1010 to 1313 to 1515 to 1818 to 20
Margins by which the 36 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 18.3. Ties are not counted.
Histogram of margins by which records were beaten on 9 September 1917
MarginRecords
0 to 327
3 to 54
5 to 81
8 to 102
10 to 131
13 to 150
15 to 180
18 to 201

Top 20 by Significance

9 September 1917
Top 20 records on 9 September 1917 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
9 September 1917Nebo, AUdaily rain18.8 mm (0.7 in)18.3 mm (0.7 in)22 years20 of 100 (Routine)
9 September 1917Callington, AUdaily rain19.1 mm (0.8 in)9.4 mm (0.37 in)3 years20 of 100 (Routine)
9 September 1917Hughenden Post Office, AUdaily rain14.5 mm (0.6 in)12.2 mm (0.5 in)22 years20 of 100 (Routine)
9 September 1917Escanaba, USdaily low max9.4 C (48.9 F)2.8 C (5.0 F)33 years20 of 100 (Routine)
9 September 1917Winnipeg St Johns Coll, CAdaily low min-1.1 C (30.0 F)1.1 C (2.0 F)41 years18 of 100 (Routine)
9 September 1917Tbilisi, GEdaily rain17.4 mm (0.7 in)4.6 mm (0.18 in)35 years18 of 100 (Routine)
9 September 1917Fort National, DZdaily high max37.0 C (98.6 F)5.0 C (9.0 F)11 years17 of 100 (Routine)
9 September 1917Heinersreuth-Vollhof, DEmonthly rain26.2 mm (1.0 in)1.0 mm (0.04 in)7 years17 of 100 (Routine)
9 September 1917Harnosand, SEdaily high min11.0 C (51.8 F)1.0 C (1.8 F)32 years15 of 100 (Routine)
9 September 1917Portland, USdaily low min5.6 C (42.1 F)1.6 C (2.9 F)25 years15 of 100 (Routine)
9 September 1917Yarmouth, CAdaily low min1.7 C (35.1 F)2.2 C (4.0 F)14 years14 of 100 (Routine)
9 September 1917Haparanda, SEdaily high min11.0 C (51.8 F)1.0 C (1.8 F)32 years14 of 100 (Routine)
9 September 1917Orebro, SEdaily high min13.5 C (56.3 F)1.0 C (1.8 F)30 years14 of 100 (Routine)
9 September 1917Bjuraker, SEdaily high min11.1 C (52.0 F)1.1 C (2.0 F)26 years14 of 100 (Routine)
9 September 1917Madison Wb City, USdaily low max13.9 C (57.0 F)0.5 C (0.9 F)33 years14 of 100 (Routine)
9 September 1917Darwin Post Office, AUdaily high min25.6 C (78.1 F)0.8 C (1.4 F)16 years13 of 100 (Routine)
9 September 1917Lucknow, CAdaily low max13.9 C (57.0 F)1.1 C (2.0 F)29 years13 of 100 (Routine)
9 September 1917Boras, SEdaily high min12.5 C (54.5 F)0.5 C (0.9 F)30 years13 of 100 (Routine)
9 September 1917Skara 1, SEdaily high min12.0 C (53.6 F)0.5 C (0.9 F)30 years13 of 100 (Routine)
9 September 1917Sveg, SEdaily high min10.0 C (50.0 F)2.0 C (3.6 F)18 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

1806 to 1917
Records on 09-09 in each year Records set or tied on this calendar date in each year from 1806 to 1917. 1917 had 44 records. 01,0002,0003,0001806: 11812: 11813: 11814: 21834: 11836: 11845: 11847: 11848: 11849: 21850: 11854: 11864: 21865: 31866: 31867: 11869: 11871: 11873: 11878: 11879: 11880: 21883: 31884: 41886: 11888: 41889: 11890: 11891: 11892: 41893: 41894: 31895: 71897: 31898: 51899: 61900: 11901: 41902: 51903: 141904: 91905: 81906: 241907: 91908: 51909: 91910: 171911: 271912: 481913: 121914: 691915: 481916: 161917: 441918: 401919: 741920: 1451921: 921922: 1151923: 581924: 2321925: 2481926: 1681927: 2461928: 1081929: 3621930: 2111931: 5581932: 3021933: 4331934: 2561935: 4611936: 2971937: 2421938: 4161939: 4291940: 2941941: 7631942: 3571943: 5961944: 7191945: 3551946: 3661947: 4651948: 3071949: 1,4071950: 4261951: 3381952: 5111953: 3441954: 2831955: 6081956: 7421957: 3901958: 4191959: 7361960: 4921961: 3831962: 8471963: 4001964: 4881965: 3261966: 3661967: 3671968: 4401969: 6031970: 5841971: 4981972: 4641973: 5171974: 6891975: 5551976: 7731977: 4101978: 7021979: 8781980: 8291981: 1,0111982: 8141983: 9581984: 1,3041985: 1,2691986: 1,0261987: 6761988: 8361989: 9831990: 7621991: 8821992: 6201993: 8861994: 8921995: 9371996: 8091997: 8371998: 1,6671999: 1,0132000: 8112001: 1,6472002: 1,3552003: 7862004: 1,6032005: 1,0682006: 9172007: 9482008: 1,1612009: 7922010: 1,0492011: 1,3282012: 6812013: 9742014: 5902015: 8062016: 1,2102017: 6612018: 8762019: 9532020: 2,5792021: 1,4582022: 1,0942023: 1,2222024: 1,1462025: 5202026: 8151806187118981915193219491966198320002017
Records set or tied on this calendar date in each year from 1806 to 1917. 1917 had 44 records.
Counts for years before the ledger starts come from the same station rules.
Records on 09-09 in each year
YearRecords
18061
18121
18131
18142
18341
18361
18451
18471
18481
18492
18501
18541
18642
18653
18663
18671
18691
18711
18731
18781
18791
18802
18833
18844
18861
18884
18891
18901
18911
18924
18934
18943
18957
18973
18985
18996
19001
19014
19025
190314
19049
19058
190624
19079
19085
19099
191017
191127
191248
191312
191469
191548
191616
191744
191840
191974
1920145
192192
1922115
192358
1924232
1925248
1926168
1927246
1928108
1929362
1930211
1931558
1932302
1933433
1934256
1935461
1936297
1937242
1938416
1939429
1940294
1941763
1942357
1943596
1944719
1945355
1946366
1947465
1948307
19491,407
1950426
1951338
1952511
1953344
1954283
1955608
1956742
1957390
1958419
1959736
1960492
1961383
1962847
1963400
1964488
1965326
1966366
1967367
1968440
1969603
1970584
1971498
1972464
1973517
1974689
1975555
1976773
1977410
1978702
1979878
1980829
19811,011
1982814
1983958
19841,304
19851,269
19861,026
1987676
1988836
1989983
1990762
1991882
1992620
1993886
1994892
1995937
1996809
1997837
19981,667
19991,013
2000811
20011,647
20021,355
2003786
20041,603
20051,068
2006917
2007948
20081,161
2009792
20101,049
20111,328
2012681
2013974
2014590
2015806
20161,210
2017661
2018876
2019953
20202,579
20211,458
20221,094
20231,222
20241,146
2025520
2026815

Download the Data

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