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Built 2026-10-19 (19 October 2026)

Weather Records on 18 August 1903

6 weather records were set or tied worldwide on 18 August 1903. Highest significance: Hambantota, LK.

Key Facts for 18 August 1903

  • On 18 August 1903, 6 weather records were set or tied at long-record stations worldwide.
  • 1 were record highs and 2 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 5 daily.
  • Hambantota set a monthly record high minimum temperature of 28.3 C (82.9 F) on 18 August 1903.
  • Across 171 earlier years (1797 to 2026) the same calendar date averaged 443 records.

Record Map

6 stations
Weather records on 18 August 1903 6 station records on 18 August 1903 are marked on the map, coloured by record type.
6 station records on 18 August 1903 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 18 August 1903: highest significance records shown on the map
StationCountryTypeValueSignificance
HambantotaSri LankaRecord high minimum temperature28.3 C (82.9 F)43 of 100 (Notable)
ChathamCanadaRecord daily precipitation30.2 mm (1.2 in)25 of 100 (Routine)
Cape Borda ComparisonAustraliaRecord daily precipitation20.3 mm (0.8 in)14 of 100 (Routine)
Dublin Phoenix ParkIrelandRecord daily precipitation21.3 mm (0.8 in)13 of 100 (Routine)
Wagga Wagga (Kooringal)AustraliaRecord low maximum temperature12.2 C (54.0 F)12 of 100 (Routine)
Baltimore Customs HouseUnited StatesRecord low minimum temperature15.6 C (60.1 F)2 of 100 (Routine)

Counts by Type and Timescale

6 records
Records on 18 August 1903 by type Records set or tied on 18 August 1903 by type: Lowest daily maximum 1, Highest daily minimum 1, Lowest daily minimum 1, Heaviest daily rainfall 3. 0123Highest daily maximum: 0Lowest daily maximum: 1Highest daily minimum: 1Lowest daily minimum: 1Heaviest daily rainfall: 3Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 18 August 1903 by type: Lowest daily maximum 1, Highest daily minimum 1, Lowest daily minimum 1, Heaviest daily rainfall 3.
Records on 18 August 1903 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum1
Highest daily minimum1
Lowest daily minimum1
Heaviest daily rainfall3
Heaviest daily snowfall0
Deepest snow cover0
Records on 18 August 1903 by timescale Records on 18 August 1903 by timescale: all-time 0, monthly 1, daily 5. 0246all-time: 0monthly: 1daily: 5all-timemonthlydaily
Records on 18 August 1903 by timescale: all-time 0, monthly 1, daily 5.
Records on 18 August 1903 by timescale
TimescaleRecords
all-time0
monthly1
daily5

How Much Records Were Beaten By

5 broken records
Histogram of margins by which records were beaten on 18 August 1903 Margins by which the 5 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 19.5. Ties are not counted. 011220 to 3: 23 to 5: 25 to 8: 08 to 10: 010 to 13: 013 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 5 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 19.5. Ties are not counted.
Histogram of margins by which records were beaten on 18 August 1903
MarginRecords
0 to 32
3 to 52
5 to 80
8 to 100
10 to 130
13 to 150
15 to 180
18 to 201

Top 20 by Significance

18 August 1903
Top 6 records on 18 August 1903 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
18 August 1903Hambantota, LKmonthly high min28.3 C (82.9 F)2.1 C (3.8 F)31 years43 of 100 (Notable)
18 August 1903Chatham, CAdaily rain30.2 mm (1.2 in)19.5 mm (0.8 in)11 years25 of 100 (Routine)
18 August 1903Cape Borda Comparison, AUdaily rain20.3 mm (0.8 in)3.8 mm (0.15 in)19 years14 of 100 (Routine)
18 August 1903Dublin Phoenix Park, IEdaily rain21.3 mm (0.8 in)3.0 mm (0.12 in)21 years13 of 100 (Routine)
18 August 1903Wagga Wagga (Kooringal), AUdaily low max12.2 C (54.0 F)0.6 C (1.1 F)26 years12 of 100 (Routine)
18 August 1903Baltimore Customs House, USdaily low min (Tie)15.6 C (60.1 F)tie28 years2 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 08-18 in each year Records set or tied on this calendar date in each year from 1797 to 1903. 1903 had 6 records. 05001,0001,5002,0001797: 21805: 11816: 11827: 11829: 11830: 11833: 11841: 11844: 11845: 31846: 11847: 11849: 11851: 11852: 11853: 11854: 21855: 11856: 11861: 11864: 21866: 11868: 21869: 11870: 21872: 11873: 11875: 31876: 11878: 11879: 21883: 31885: 31886: 31887: 31888: 21889: 11890: 11891: 21892: 61893: 41894: 41895: 11898: 41899: 61900: 21901: 101902: 81903: 61904: 81905: 101906: 401907: 71908: 211909: 241910: 161911: 111912: 211913: 431914: 371915: 601916: 711917: 701918: 531919: 341920: 511921: 391922: 1291923: 901924: 2251925: 3001926: 1681927: 2691928: 1411929: 1811930: 1501931: 2411932: 3821933: 4311934: 6381935: 4241936: 7661937: 3081938: 2431939: 3811940: 4341941: 4671942: 3331943: 7381944: 3251945: 4001946: 4161947: 9581948: 3151949: 3931950: 6831951: 3551952: 4051953: 3231954: 6221955: 7951956: 5801957: 3801958: 5801959: 5371960: 5991961: 4151962: 4281963: 7601964: 4431965: 5251966: 5731967: 6231968: 7951969: 5301970: 5971971: 3811972: 4931973: 7341974: 6391975: 8441976: 9171977: 1,1121978: 8541979: 1,3091980: 7711981: 1,3861982: 5631983: 1,4201984: 6001985: 7651986: 8611987: 1,6091988: 1,3511989: 9521990: 9201991: 5331992: 1,4971993: 7061994: 1,0271995: 1,8821996: 7601997: 1,1911998: 9231999: 8882000: 1,1832001: 1,0362002: 1,3062003: 8602004: 1,0502005: 8652006: 8422007: 1,1162008: 1,2652009: 8392010: 1,1672011: 1,2392012: 1,2472013: 7522014: 7512015: 8802016: 7042017: 5652018: 4622019: 6152020: 1,5412021: 1,1182022: 1,2372023: 1,0942024: 6962025: 4552026: 5451797185618891909192719451963198119992017
Records set or tied on this calendar date in each year from 1797 to 1903. 1903 had 6 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-18 in each year
YearRecords
17972
18051
18161
18271
18291
18301
18331
18411
18441
18453
18461
18471
18491
18511
18521
18531
18542
18551
18561
18611
18642
18661
18682
18691
18702
18721
18731
18753
18761
18781
18792
18833
18853
18863
18873
18882
18891
18901
18912
18926
18934
18944
18951
18984
18996
19002
190110
19028
19036
19048
190510
190640
19077
190821
190924
191016
191111
191221
191343
191437
191560
191671
191770
191853
191934
192051
192139
1922129
192390
1924225
1925300
1926168
1927269
1928141
1929181
1930150
1931241
1932382
1933431
1934638
1935424
1936766
1937308
1938243
1939381
1940434
1941467
1942333
1943738
1944325
1945400
1946416
1947958
1948315
1949393
1950683
1951355
1952405
1953323
1954622
1955795
1956580
1957380
1958580
1959537
1960599
1961415
1962428
1963760
1964443
1965525
1966573
1967623
1968795
1969530
1970597
1971381
1972493
1973734
1974639
1975844
1976917
19771,112
1978854
19791,309
1980771
19811,386
1982563
19831,420
1984600
1985765
1986861
19871,609
19881,351
1989952
1990920
1991533
19921,497
1993706
19941,027
19951,882
1996760
19971,191
1998923
1999888
20001,183
20011,036
20021,306
2003860
20041,050
2005865
2006842
20071,116
20081,265
2009839
20101,167
20111,239
20121,247
2013752
2014751
2015880
2016704
2017565
2018462
2019615
20201,541
20211,118
20221,237
20231,094
2024696
2025455
2026545

Download the Data

  • Data for records on 1903-08-18: 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).