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Weather Records on 31 August 1909

39 weather records were set or tied worldwide on 31 August 1909. Highest significance: Orillia, CA.

Key Facts for 31 August 1909

  • On 31 August 1909, 39 weather records were set or tied at long-record stations worldwide.
  • 1 were record highs and 25 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 4 monthly and 35 daily.
  • Orillia set a daily record precipitation of 40.6 mm (1.6 in) on 31 August 1909.
  • Across 165 earlier years (1796 to 2026) the same calendar date averaged 438 records.

Record Map

39 stations
Weather records on 31 August 1909 39 station records on 31 August 1909 are marked on the map, coloured by record type.
39 station records on 31 August 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 31 August 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
OrilliaCanadaRecord daily precipitation40.6 mm (1.6 in)34 of 100 (Routine)
PiteaSwedenRecord daily precipitation26.6 mm (1.0 in)23 of 100 (Routine)
Daly WatersAustraliaRecord daily precipitation22.9 mm (0.9 in)20 of 100 (Routine)
BambergGermanyRecord daily precipitation15.4 mm (0.6 in)20 of 100 (Routine)
HaparandaSwedenRecord daily precipitation13.0 mm (0.5 in)20 of 100 (Routine)
GravenhurstCanadaRecord daily precipitation18.3 mm (0.7 in)20 of 100 (Routine)
PortlandUnited StatesRecord low minimum temperature7.2 C (45.0 F)20 of 100 (Routine)
SvegSwedenRecord daily precipitation26.1 mm (1.0 in)19 of 100 (Routine)
QuebecCanadaRecord low minimum temperature2.8 C (37.0 F)18 of 100 (Routine)
Oestersund-FroesoenSwedenRecord daily precipitation25.3 mm (1.0 in)18 of 100 (Routine)
Middletown 4 WUnited StatesRecord low minimum temperature6.1 C (43.0 F)17 of 100 (Routine)
Saint JohnCanadaRecord low minimum temperature7.8 C (46.0 F)16 of 100 (Routine)
CharlottetownCanadaRecord low minimum temperature7.2 C (45.0 F)16 of 100 (Routine)
FalunSwedenRecord daily precipitation34.0 mm (1.3 in)16 of 100 (Routine)
HalmstadSwedenRecord daily precipitation18.7 mm (0.7 in)16 of 100 (Routine)
ConcordUnited StatesRecord low minimum temperature2.2 C (36.0 F)15 of 100 (Routine)
RobertsonSouth AfricaRecord daily precipitation7.6 mm (0.30 in)13 of 100 (Routine)
LakefieldCanadaRecord low minimum temperature6.7 C (44.1 F)12 of 100 (Routine)
EscanabaUnited StatesRecord low minimum temperature4.4 C (39.9 F)12 of 100 (Routine)
Owen SoundCanadaRecord low minimum temperature3.9 C (39.0 F)11 of 100 (Routine)
Montreal McGillCanadaRecord low minimum temperature7.8 C (46.0 F)11 of 100 (Routine)
TranebjergDenmarkRecord low maximum temperature13.0 C (55.4 F)11 of 100 (Routine)
VestervigDenmarkRecord low maximum temperature13.6 C (56.5 F)10 of 100 (Routine)
KaresuandoSwedenRecord daily precipitation13.6 mm (0.5 in)10 of 100 (Routine)
Kingston Queens UCanadaRecord low minimum temperature8.9 C (48.0 F)9 of 100 (Routine)
EversleighAustraliaRecord daily precipitation14.2 mm (0.6 in)7 of 100 (Routine)
Parry SoundCanadaRecord low maximum temperature15.6 C (60.1 F)7 of 100 (Routine)
Little Rock St CapitolUnited StatesRecord high maximum temperature35.6 C (96.1 F)7 of 100 (Routine)
Sacramento 5 ESEUnited StatesRecord low minimum temperature10.6 C (51.1 F)7 of 100 (Routine)
TruroCanadaRecord low minimum temperature3.9 C (39.0 F)6 of 100 (Routine)
ChathamCanadaRecord low minimum temperature3.3 C (37.9 F)5 of 100 (Routine)
Fredericton UnbCanadaRecord low minimum temperature1.7 C (35.1 F)3 of 100 (Routine)
GravenhurstCanadaRecord low minimum temperature5.0 C (41.0 F)2 of 100 (Routine)
Port DoverCanadaRecord low minimum temperature7.8 C (46.0 F)2 of 100 (Routine)
QuebecCanadaRecord low maximum temperature14.4 C (57.9 F)2 of 100 (Routine)
SydneyCanadaRecord low minimum temperature4.4 C (39.9 F)2 of 100 (Routine)
BuffaloUnited StatesRecord low minimum temperature10.0 C (50.0 F)2 of 100 (Routine)
La Crosse Wb CityUnited StatesRecord low minimum temperature8.3 C (46.9 F)2 of 100 (Routine)
Stornoway AirportUnited KingdomRecord low maximum temperature11.1 C (52.0 F)0 of 100 (Routine)

Counts by Type and Timescale

39 records
Records on 31 August 1909 by type Records set or tied on 31 August 1909 by type: Highest daily maximum 1, Lowest daily maximum 5, Lowest daily minimum 20, Heaviest daily rainfall 13. 05101520Highest daily maximum: 1Lowest daily maximum: 5Highest daily minimum: 0Lowest daily minimum: 20Heaviest daily rainfall: 13Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 31 August 1909 by type: Highest daily maximum 1, Lowest daily maximum 5, Lowest daily minimum 20, Heaviest daily rainfall 13.
Records on 31 August 1909 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum5
Highest daily minimum0
Lowest daily minimum20
Heaviest daily rainfall13
Heaviest daily snowfall0
Deepest snow cover0
Records on 31 August 1909 by timescale Records on 31 August 1909 by timescale: all-time 0, monthly 4, daily 35. 010203040all-time: 0monthly: 4daily: 35all-timemonthlydaily
Records on 31 August 1909 by timescale: all-time 0, monthly 4, daily 35.
Records on 31 August 1909 by timescale
TimescaleRecords
all-time0
monthly4
daily35

How Much Records Were Beaten By

30 broken records
Histogram of margins by which records were beaten on 31 August 1909 Margins by which the 30 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 26.9. Ties are not counted. 01020300 to 5: 225 to 10: 610 to 15: 015 to 20: 020 to 25: 125 to 30: 10 to 55 to 1010 to 1515 to 2020 to 2525 to 30
Margins by which the 30 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 26.9. Ties are not counted.
Histogram of margins by which records were beaten on 31 August 1909
MarginRecords
0 to 522
5 to 106
10 to 150
15 to 200
20 to 251
25 to 301

Top 20 by Significance

31 August 1909
Top 20 records on 31 August 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
31 August 1909Orillia, CAdaily rain40.6 mm (1.6 in)26.9 mm (1.1 in)7 years34 of 100 (Routine)
31 August 1909Pitea, SEdaily rain26.6 mm (1.0 in)6.8 mm (0.27 in)29 years23 of 100 (Routine)
31 August 1909Daly Waters, AUdaily rain22.9 mm (0.9 in)22.9 mm (0.9 in)35 years20 of 100 (Routine)
31 August 1909Bamberg, DEdaily rain15.4 mm (0.6 in)8.4 mm (0.33 in)24 years20 of 100 (Routine)
31 August 1909Haparanda, SEdaily rain13.0 mm (0.5 in)5.1 mm (0.20 in)38 years20 of 100 (Routine)
31 August 1909Gravenhurst, CAdaily rain18.3 mm (0.7 in)8.1 mm (0.32 in)30 years20 of 100 (Routine)
31 August 1909Portland, USmonthly low min7.2 C (45.0 F)0.6 C (1.1 F)17 years20 of 100 (Routine)
31 August 1909Sveg, SEdaily rain26.1 mm (1.0 in)7.3 mm (0.29 in)16 years19 of 100 (Routine)
31 August 1909Quebec, CAmonthly low min2.8 C (37.0 F)0.5 C (0.9 F)15 years18 of 100 (Routine)
31 August 1909Oestersund-Froesoen, SEdaily rain25.3 mm (1.0 in)1.0 mm (0.04 in)45 years18 of 100 (Routine)
31 August 1909Middletown 4 W, USdaily low min6.1 C (43.0 F)2.8 C (5.0 F)25 years17 of 100 (Routine)
31 August 1909Saint John, CAdaily low min7.8 C (46.0 F)1.1 C (2.0 F)28 years16 of 100 (Routine)
31 August 1909Charlottetown, CAdaily low min7.2 C (45.0 F)1.1 C (2.0 F)35 years16 of 100 (Routine)
31 August 1909Falun, SEdaily rain34.0 mm (1.3 in)6.5 mm (0.26 in)11 years16 of 100 (Routine)
31 August 1909Halmstad, SEdaily rain18.7 mm (0.7 in)1.3 mm (0.05 in)33 years16 of 100 (Routine)
31 August 1909Concord, USdaily low min2.2 C (36.0 F)3.4 C (6.1 F)11 years15 of 100 (Routine)
31 August 1909Robertson, ZAdaily rain7.6 mm (0.30 in)1.5 mm (0.06 in)26 years13 of 100 (Routine)
31 August 1909Lakefield, CAdaily low min6.7 C (44.1 F)1.6 C (2.9 F)18 years12 of 100 (Routine)
31 August 1909Escanaba, USdaily low min4.4 C (39.9 F)1.2 C (2.2 F)22 years12 of 100 (Routine)
31 August 1909Owen Sound, CAdaily low min3.9 C (39.0 F)1.1 C (2.0 F)21 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

1796 to 1909
Records on 08-31 in each year Records set or tied on this calendar date in each year from 1796 to 1909. 1909 had 39 records. 05001,0001,5002,0001796: 11806: 11807: 21813: 11814: 11816: 11827: 11836: 11846: 11849: 11851: 11856: 21858: 11859: 11860: 11861: 11863: 11867: 11869: 11873: 11875: 11876: 11877: 21879: 21881: 31882: 21885: 11886: 51887: 11889: 11890: 21892: 31893: 11894: 11895: 11896: 11897: 51898: 101899: 41900: 31901: 51902: 51903: 161904: 131905: 81906: 471907: 61908: 121909: 391910: 201911: 311912: 341913: 401914: 231915: 711916: 71917: 601918: 581919: 251920: 461921: 861922: 581923: 631924: 2321925: 1111926: 1481927: 1031928: 2011929: 3001930: 2431931: 1921932: 8071933: 4241934: 3811935: 5401936: 2261937: 5081938: 3241939: 2961940: 4001941: 5281942: 4221943: 6501944: 6381945: 5721946: 5451947: 4731948: 3671949: 4091950: 6621951: 9101952: 3881953: 1,0541954: 6331955: 5391956: 7341957: 3171958: 4171959: 4961960: 3661961: 6251962: 4321963: 4151964: 5911965: 8861966: 8301967: 9521968: 5621969: 4741970: 5581971: 3261972: 2871973: 7931974: 5871975: 6581976: 7321977: 6211978: 8911979: 4001980: 7011981: 6921982: 5861983: 7881984: 8661985: 8541986: 1,2181987: 8361988: 5701989: 6221990: 9661991: 8481992: 1,2741993: 1,2861994: 1,1391995: 1,0771996: 1,4511997: 9431998: 1,1631999: 9882000: 1,5452001: 9442002: 8522003: 1,2322004: 9632005: 1,7822006: 1,1472007: 1,1102008: 8702009: 1,2242010: 1,4902011: 9942012: 9322013: 7712014: 4582015: 1,0742016: 5992017: 5962018: 3662019: 7812020: 7372021: 5532022: 1,1912023: 6002024: 7662025: 3072026: 5951796186718951912192919461963198019972014
Records set or tied on this calendar date in each year from 1796 to 1909. 1909 had 39 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-31 in each year
YearRecords
17961
18061
18072
18131
18141
18161
18271
18361
18461
18491
18511
18562
18581
18591
18601
18611
18631
18671
18691
18731
18751
18761
18772
18792
18813
18822
18851
18865
18871
18891
18902
18923
18931
18941
18951
18961
18975
189810
18994
19003
19015
19025
190316
190413
19058
190647
19076
190812
190939
191020
191131
191234
191340
191423
191571
19167
191760
191858
191925
192046
192186
192258
192363
1924232
1925111
1926148
1927103
1928201
1929300
1930243
1931192
1932807
1933424
1934381
1935540
1936226
1937508
1938324
1939296
1940400
1941528
1942422
1943650
1944638
1945572
1946545
1947473
1948367
1949409
1950662
1951910
1952388
19531,054
1954633
1955539
1956734
1957317
1958417
1959496
1960366
1961625
1962432
1963415
1964591
1965886
1966830
1967952
1968562
1969474
1970558
1971326
1972287
1973793
1974587
1975658
1976732
1977621
1978891
1979400
1980701
1981692
1982586
1983788
1984866
1985854
19861,218
1987836
1988570
1989622
1990966
1991848
19921,274
19931,286
19941,139
19951,077
19961,451
1997943
19981,163
1999988
20001,545
2001944
2002852
20031,232
2004963
20051,782
20061,147
20071,110
2008870
20091,224
20101,490
2011994
2012932
2013771
2014458
20151,074
2016599
2017596
2018366
2019781
2020737
2021553
20221,191
2023600
2024766
2025307
2026595

Download the Data

  • Data for records on 1909-08-31: 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).