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Built 2026-10-19 (19 October 2026)

Weather Records on 15 September 1903

31 weather records were set or tied worldwide on 15 September 1903. Highest significance: Maryland, AU.

Key Facts for 15 September 1903

  • On 15 September 1903, 31 weather records were set or tied at long-record stations worldwide.
  • 15 were record highs and 10 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 30 daily.
  • Maryland set a daily record precipitation of 36.1 mm (1.4 in) on 15 September 1903.
  • Across 170 earlier years (1797 to 2026) the same calendar date averaged 415 records.

Record Map

31 stations
Weather records on 15 September 1903 31 station records on 15 September 1903 are marked on the map, coloured by record type.
31 station records on 15 September 1903 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 15 September 1903: highest significance records shown on the map
StationCountryTypeValueSignificance
MarylandAustraliaRecord daily precipitation36.1 mm (1.4 in)28 of 100 (Routine)
TorontoCanadaRecord high maximum temperature28.9 C (84.0 F)25 of 100 (Routine)
TorontoCanadaRecord high minimum temperature17.8 C (64.0 F)19 of 100 (Routine)
Praha-KlementinumCzech RepublicRecord low maximum temperature9.6 C (49.3 F)18 of 100 (Routine)
Tenterfield (Federation Park)AustraliaRecord daily precipitation18.3 mm (0.7 in)15 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord low maximum temperature8.9 C (48.0 F)14 of 100 (Routine)
TranebjergDenmarkRecord daily precipitation6.9 mm (0.27 in)14 of 100 (Routine)
PeterboroughCanadaRecord high minimum temperature16.7 C (62.1 F)13 of 100 (Routine)
ArmaghUnited KingdomRecord low minimum temperature2.6 C (36.7 F)13 of 100 (Routine)
GravenhurstCanadaRecord daily precipitation24.9 mm (1.0 in)12 of 100 (Routine)
HambantotaSri LankaRecord high maximum temperature33.7 C (92.7 F)12 of 100 (Routine)
Leipzig-HolzhausenGermanyRecord low maximum temperature10.7 C (51.3 F)12 of 100 (Routine)
Stornoway AirportUnited KingdomRecord low minimum temperature2.8 C (37.0 F)12 of 100 (Routine)
Cleveland 2717 EuclidUnited StatesRecord high minimum temperature21.1 C (70.0 F)12 of 100 (Routine)
Fort SillUnited StatesRecord low minimum temperature6.1 C (43.0 F)12 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord low minimum temperature-4.4 C (24.1 F)11 of 100 (Routine)
Saint JohnCanadaRecord high maximum temperature23.3 C (73.9 F)10 of 100 (Routine)
Saint JohnCanadaRecord high minimum temperature15.0 C (59.0 F)10 of 100 (Routine)
WoodstockCanadaRecord high minimum temperature17.8 C (64.0 F)9 of 100 (Routine)
Jena SternwarteGermanyRecord low maximum temperature9.6 C (49.3 F)7 of 100 (Routine)
StratfordCanadaRecord daily precipitation27.9 mm (1.1 in)6 of 100 (Routine)
Toledo BladeUnited StatesRecord high minimum temperature21.1 C (70.0 F)6 of 100 (Routine)
Dublin Phoenix ParkIrelandRecord low minimum temperature-0.1 C (31.8 F)5 of 100 (Routine)
Milwaukee Wb CityUnited StatesRecord daily precipitation21.3 mm (0.8 in)5 of 100 (Routine)
Ny City Cntrl ParkUnited StatesRecord high minimum temperature22.8 C (73.0 F)4 of 100 (Routine)
PeterboroughCanadaRecord high maximum temperature29.4 C (84.9 F)2 of 100 (Routine)
TruroCanadaRecord high maximum temperature27.2 C (81.0 F)2 of 100 (Routine)
ConcordUnited StatesRecord high maximum temperature30.6 C (87.1 F)2 of 100 (Routine)
Fort SillUnited StatesRecord low maximum temperature20.6 C (69.1 F)2 of 100 (Routine)
Toledo BladeUnited StatesRecord high maximum temperature32.2 C (90.0 F)1 of 100 (Routine)
Baltimore Customs HouseUnited StatesRecord high minimum temperature21.1 C (70.0 F)0 of 100 (Routine)

Counts by Type and Timescale

31 records
Records on 15 September 1903 by type Records set or tied on 15 September 1903 by type: Highest daily maximum 7, Lowest daily maximum 5, Highest daily minimum 8, Lowest daily minimum 5, Heaviest daily rainfall 6. 02468Highest daily maximum: 7Lowest daily maximum: 5Highest daily minimum: 8Lowest daily minimum: 5Heaviest daily rainfall: 6Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 15 September 1903 by type: Highest daily maximum 7, Lowest daily maximum 5, Highest daily minimum 8, Lowest daily minimum 5, Heaviest daily rainfall 6.
Records on 15 September 1903 by type
Record typeRecords
Highest daily maximum7
Lowest daily maximum5
Highest daily minimum8
Lowest daily minimum5
Heaviest daily rainfall6
Heaviest daily snowfall0
Deepest snow cover0
Records on 15 September 1903 by timescale Records on 15 September 1903 by timescale: all-time 0, monthly 1, daily 30. 0102030all-time: 0monthly: 1daily: 30all-timemonthlydaily
Records on 15 September 1903 by timescale: all-time 0, monthly 1, daily 30.
Records on 15 September 1903 by timescale
TimescaleRecords
all-time0
monthly1
daily30

How Much Records Were Beaten By

23 broken records
Histogram of margins by which records were beaten on 15 September 1903 Margins by which the 23 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 20.9. Ties are not counted. 01020300 to 5: 215 to 10: 110 to 15: 015 to 20: 020 to 25: 10 to 55 to 1010 to 1515 to 2020 to 25
Margins by which the 23 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 20.9. Ties are not counted.
Histogram of margins by which records were beaten on 15 September 1903
MarginRecords
0 to 521
5 to 101
10 to 150
15 to 200
20 to 251

Top 20 by Significance

15 September 1903
Top 20 records on 15 September 1903 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
15 September 1903Maryland, AUdaily rain36.1 mm (1.4 in)20.9 mm (0.8 in)22 years28 of 100 (Routine)
15 September 1903Toronto, CAdaily high max28.9 C (84.0 F)1.1 C (2.0 F)56 years25 of 100 (Routine)
15 September 1903Toronto, CAdaily high min17.8 C (64.0 F)1.1 C (2.0 F)37 years19 of 100 (Routine)
15 September 1903Praha-Klementinum, CZdaily low max9.6 C (49.3 F)1.6 C (2.9 F)13 years18 of 100 (Routine)
15 September 1903Tenterfield (Federation Park), AUdaily rain18.3 mm (0.7 in)6.9 mm (0.27 in)23 years15 of 100 (Routine)
15 September 1903Winnipeg St Johns Coll, CAdaily low max8.9 C (48.0 F)2.2 C (4.0 F)29 years14 of 100 (Routine)
15 September 1903Tranebjerg, DKdaily rain6.9 mm (0.27 in)2.1 mm (0.08 in)24 years14 of 100 (Routine)
15 September 1903Peterborough, CAdaily high min16.7 C (62.1 F)2.8 C (5.0 F)16 years13 of 100 (Routine)
15 September 1903Armagh, GBdaily low min2.6 C (36.7 F)0.7 C (1.3 F)16 years13 of 100 (Routine)
15 September 1903Gravenhurst, CAdaily rain24.9 mm (1.0 in)1.8 mm (0.07 in)29 years12 of 100 (Routine)
15 September 1903Hambantota, LKdaily high max33.7 C (92.7 F)0.4 C (0.7 F)23 years12 of 100 (Routine)
15 September 1903Leipzig-Holzhausen, DEdaily low max10.7 C (51.3 F)1.9 C (3.4 F)13 years12 of 100 (Routine)
15 September 1903Stornoway Airport, GBdaily low min2.8 C (37.0 F)1.6 C (2.9 F)13 years12 of 100 (Routine)
15 September 1903Cleveland 2717 Euclid, USdaily high min21.1 C (70.0 F)1.7 C (3.1 F)21 years12 of 100 (Routine)
15 September 1903Fort Sill, USdaily low min6.1 C (43.0 F)1.1 C (2.0 F)23 years12 of 100 (Routine)
15 September 1903Winnipeg St Johns Coll, CAdaily low min-4.4 C (24.1 F)1.1 C (2.0 F)21 years11 of 100 (Routine)
15 September 1903Saint John, CAdaily high max23.3 C (73.9 F)1.1 C (2.0 F)13 years10 of 100 (Routine)
15 September 1903Saint John, CAdaily high min15.0 C (59.0 F)0.6 C (1.1 F)22 years10 of 100 (Routine)
15 September 1903Woodstock, CAdaily high min17.8 C (64.0 F)2.2 C (4.0 F)9 years9 of 100 (Routine)
15 September 1903Jena Sternwarte, DEdaily low max (Tie)9.6 C (49.3 F)tie66 years7 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 1903
Records on 09-15 in each year Records set or tied on this calendar date in each year from 1797 to 1903. 1903 had 31 records. 01,0002,0003,0001797: 11803: 11806: 21810: 11816: 11818: 11823: 21833: 11836: 11837: 21839: 11841: 11848: 11850: 11851: 11854: 21856: 11857: 11859: 11864: 11865: 21866: 11867: 21868: 11869: 11872: 11873: 21876: 21877: 21880: 11881: 11882: 61884: 31885: 41886: 21887: 31888: 11889: 51890: 11894: 41895: 11897: 11898: 31899: 31900: 11901: 121902: 71903: 311904: 301905: 161906: 61907: 71908: 161909: 161910: 21911: 401912: 641913: 431914: 181915: 941916: 441917: 501918: 501919: 521920: 1641921: 1221922: 531923: 1931924: 1031925: 1121926: 1341927: 5391928: 861929: 991930: 2351931: 4221932: 2951933: 3221934: 3511935: 4631936: 4601937: 3371938: 2471939: 1,0981940: 1811941: 2761942: 2781943: 3601944: 3961945: 4181946: 4111947: 6211948: 5571949: 5231950: 7501951: 2831952: 4551953: 4001954: 5181955: 5321956: 6461957: 4491958: 2941959: 8441960: 4101961: 5861962: 5571963: 4551964: 8391965: 6141966: 5341967: 5781968: 4291969: 3621970: 1,1571971: 5981972: 3561973: 7741974: 3861975: 7391976: 6671977: 4001978: 6281979: 1,0221980: 5631981: 6131982: 1,3151983: 7561984: 7661985: 7641986: 9281987: 7191988: 8181989: 9551990: 9111991: 1,1651992: 9191993: 2,2271994: 1,3631995: 7231996: 1,2121997: 1,1771998: 1,7681999: 8582000: 1,1752001: 8372002: 1,2122003: 8552004: 8932005: 1,1232006: 1,0422007: 9462008: 1,1532009: 7732010: 9132011: 1,1702012: 5682013: 8542014: 4432015: 9972016: 9882017: 8252018: 8742019: 5382020: 7852021: 4672022: 3922023: 5072024: 6812025: 5032026: 7791797185918881910192819461964198220002018
Records set or tied on this calendar date in each year from 1797 to 1903. 1903 had 31 records.
Counts for years before the ledger starts come from the same station rules.
Records on 09-15 in each year
YearRecords
17971
18031
18062
18101
18161
18181
18232
18331
18361
18372
18391
18411
18481
18501
18511
18542
18561
18571
18591
18641
18652
18661
18672
18681
18691
18721
18732
18762
18772
18801
18811
18826
18843
18854
18862
18873
18881
18895
18901
18944
18951
18971
18983
18993
19001
190112
19027
190331
190430
190516
19066
19077
190816
190916
19102
191140
191264
191343
191418
191594
191644
191750
191850
191952
1920164
1921122
192253
1923193
1924103
1925112
1926134
1927539
192886
192999
1930235
1931422
1932295
1933322
1934351
1935463
1936460
1937337
1938247
19391,098
1940181
1941276
1942278
1943360
1944396
1945418
1946411
1947621
1948557
1949523
1950750
1951283
1952455
1953400
1954518
1955532
1956646
1957449
1958294
1959844
1960410
1961586
1962557
1963455
1964839
1965614
1966534
1967578
1968429
1969362
19701,157
1971598
1972356
1973774
1974386
1975739
1976667
1977400
1978628
19791,022
1980563
1981613
19821,315
1983756
1984766
1985764
1986928
1987719
1988818
1989955
1990911
19911,165
1992919
19932,227
19941,363
1995723
19961,212
19971,177
19981,768
1999858
20001,175
2001837
20021,212
2003855
2004893
20051,123
20061,042
2007946
20081,153
2009773
2010913
20111,170
2012568
2013854
2014443
2015997
2016988
2017825
2018874
2019538
2020785
2021467
2022392
2023507
2024681
2025503
2026779

Download the Data

  • Data for records on 1903-09-15: 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).