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Built 2026-10-19 (19 October 2026)

Weather Records on 20 August 1904

30 weather records were set or tied worldwide on 20 August 1904. Highest significance: Peterborough, CA.

Key Facts for 20 August 1904

  • On 20 August 1904, 30 weather records were set or tied at long-record stations worldwide.
  • 1 were record highs and 6 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 29 daily.
  • Peterborough set a daily record precipitation of 43.7 mm (1.7 in) on 20 August 1904.
  • Across 163 earlier years (1797 to 2026) the same calendar date averaged 457 records.

Record Map

30 stations
Weather records on 20 August 1904 30 station records on 20 August 1904 are marked on the map, coloured by record type.
30 station records on 20 August 1904 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 20 August 1904: highest significance records shown on the map
StationCountryTypeValueSignificance
PeterboroughCanadaRecord daily precipitation43.7 mm (1.7 in)48 of 100 (Notable)
Montreal McGillCanadaRecord daily precipitation56.1 mm (2.2 in)41 of 100 (Notable)
StratfordCanadaRecord daily precipitation53.8 mm (2.1 in)38 of 100 (Notable)
Trenton 2United StatesRecord daily precipitation75.7 mm (3.0 in)38 of 100 (Notable)
Kingston Queens UCanadaRecord daily precipitation47.2 mm (1.9 in)36 of 100 (Notable)
Port DoverCanadaRecord daily precipitation63.5 mm (2.5 in)36 of 100 (Notable)
TorontoCanadaRecord daily precipitation42.7 mm (1.7 in)35 of 100 (Notable)
Toledo BladeUnited StatesRecord daily precipitation38.4 mm (1.5 in)31 of 100 (Routine)
PortlandUnited StatesRecord daily precipitation46.0 mm (1.8 in)24 of 100 (Routine)
Middletown 4 WUnited StatesRecord daily precipitation42.2 mm (1.7 in)22 of 100 (Routine)
Newark Liberty Intl APUnited StatesRecord daily precipitation86.4 mm (3.4 in)22 of 100 (Routine)
Deniliquin (Wilkinson St)AustraliaRecord high minimum temperature11.7 C (53.1 F)20 of 100 (Routine)
ConcordUnited StatesRecord daily precipitation47.5 mm (1.9 in)20 of 100 (Routine)
WoodstockCanadaRecord daily precipitation50.5 mm (2.0 in)18 of 100 (Routine)
ArmaghUnited KingdomRecord low minimum temperature4.9 C (40.8 F)18 of 100 (Routine)
BuffaloUnited StatesRecord daily precipitation33.0 mm (1.3 in)18 of 100 (Routine)
VinelandUnited StatesRecord daily precipitation38.6 mm (1.5 in)14 of 100 (Routine)
Windsor RiversideCanadaRecord daily precipitation38.1 mm (1.5 in)13 of 100 (Routine)
HalifaxCanadaRecord low minimum temperature6.7 C (44.1 F)13 of 100 (Routine)
Dublin Phoenix ParkIrelandRecord low minimum temperature4.1 C (39.4 F)13 of 100 (Routine)
Nuwara EliyaSri LankaRecord low minimum temperature6.4 C (43.5 F)11 of 100 (Routine)
World Trade CtrUnited StatesRecord daily precipitation70.6 mm (2.8 in)11 of 100 (Routine)
Cleveland 2717 EuclidUnited StatesRecord daily precipitation14.7 mm (0.6 in)11 of 100 (Routine)
GravenhurstCanadaRecord daily precipitation22.9 mm (0.9 in)10 of 100 (Routine)
QuebecCanadaRecord daily precipitation24.6 mm (1.0 in)10 of 100 (Routine)
SouthamptonCanadaRecord daily precipitation16.0 mm (0.6 in)8 of 100 (Routine)
TartuEstoniaRecord daily precipitation18.2 mm (0.7 in)8 of 100 (Routine)
Atlantic City MarinaUnited StatesRecord daily precipitation25.9 mm (1.0 in)5 of 100 (Routine)
TruroCanadaRecord low minimum temperature3.9 C (39.0 F)2 of 100 (Routine)
Fredericton UnbCanadaRecord low minimum temperature5.0 C (41.0 F)1 of 100 (Routine)

Counts by Type and Timescale

30 records
Records on 20 August 1904 by type Records set or tied on 20 August 1904 by type: Highest daily minimum 1, Lowest daily minimum 6, Heaviest daily rainfall 23. 0102030Highest daily maximum: 0Lowest daily maximum: 0Highest daily minimum: 1Lowest daily minimum: 6Heaviest daily rainfall: 23Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 20 August 1904 by type: Highest daily minimum 1, Lowest daily minimum 6, Heaviest daily rainfall 23.
Records on 20 August 1904 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum0
Highest daily minimum1
Lowest daily minimum6
Heaviest daily rainfall23
Heaviest daily snowfall0
Deepest snow cover0
Records on 20 August 1904 by timescale Records on 20 August 1904 by timescale: all-time 0, monthly 1, daily 29. 0102030all-time: 0monthly: 1daily: 29all-timemonthlydaily
Records on 20 August 1904 by timescale: all-time 0, monthly 1, daily 29.
Records on 20 August 1904 by timescale
TimescaleRecords
all-time0
monthly1
daily29

How Much Records Were Beaten By

28 broken records
Histogram of margins by which records were beaten on 20 August 1904 Margins by which the 28 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 61.7. Ties are not counted. 0510150 to 10: 1410 to 20: 420 to 30: 430 to 40: 540 to 50: 050 to 60: 060 to 70: 10 to 1010 to 2020 to 3030 to 4040 to 5050 to 6060 to 70
Margins by which the 28 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 61.7. Ties are not counted.
Histogram of margins by which records were beaten on 20 August 1904
MarginRecords
0 to 1014
10 to 204
20 to 304
30 to 405
40 to 500
50 to 600
60 to 701

Top 20 by Significance

20 August 1904
Top 20 records on 20 August 1904 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
20 August 1904Peterborough, CAdaily rain43.7 mm (1.7 in)35.3 mm (1.4 in)19 years48 of 100 (Notable)
20 August 1904Montreal McGill, CAdaily rain56.1 mm (2.2 in)38.3 mm (1.5 in)1 year41 of 100 (Notable)
20 August 1904Stratford, CAdaily rain53.8 mm (2.1 in)35.8 mm (1.4 in)4 years38 of 100 (Notable)
20 August 1904Trenton 2, USdaily rain75.7 mm (3.0 in)61.7 mm (2.4 in)10 years38 of 100 (Notable)
20 August 1904Kingston Queens U, CAdaily rain47.2 mm (1.9 in)36.8 mm (1.4 in)19 years36 of 100 (Notable)
20 August 1904Port Dover, CAmonthly rain63.5 mm (2.5 in)14.7 mm (0.6 in)27 years36 of 100 (Notable)
20 August 1904Toronto, CAdaily rain42.7 mm (1.7 in)19.6 mm (0.8 in)39 years35 of 100 (Notable)
20 August 1904Toledo Blade, USdaily rain38.4 mm (1.5 in)29.0 mm (1.1 in)4 years31 of 100 (Routine)
20 August 1904Portland, USdaily rain46.0 mm (1.8 in)22.4 mm (0.9 in)13 years24 of 100 (Routine)
20 August 1904Middletown 4 W, USdaily rain42.2 mm (1.7 in)23.1 mm (0.9 in)20 years22 of 100 (Routine)
20 August 1904Newark Liberty Intl AP, USdaily rain86.4 mm (3.4 in)36.1 mm (1.4 in)10 years22 of 100 (Routine)
20 August 1904Deniliquin (Wilkinson St), AUdaily high min11.7 C (53.1 F)2.3 C (4.1 F)36 years20 of 100 (Routine)
20 August 1904Concord, USdaily rain47.5 mm (1.9 in)21.3 mm (0.8 in)1 year20 of 100 (Routine)
20 August 1904Woodstock, CAdaily rain50.5 mm (2.0 in)19.5 mm (0.8 in)4 years18 of 100 (Routine)
20 August 1904Armagh, GBdaily low min4.9 C (40.8 F)0.4 C (0.7 F)39 years18 of 100 (Routine)
20 August 1904Buffalo, USdaily rain33.0 mm (1.3 in)16.5 mm (0.6 in)4 years18 of 100 (Routine)
20 August 1904Vineland, USdaily rain38.6 mm (1.5 in)3.5 mm (0.14 in)30 years14 of 100 (Routine)
20 August 1904Windsor Riverside, CAdaily rain38.1 mm (1.5 in)9.7 mm (0.38 in)4 years13 of 100 (Routine)
20 August 1904Halifax, CAdaily low min6.7 C (44.1 F)1.6 C (2.9 F)17 years13 of 100 (Routine)
20 August 1904Dublin Phoenix Park, IEdaily low min4.1 C (39.4 F)0.1 C (0.2 F)33 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

1797 to 1904
Records on 08-20 in each year Records set or tied on this calendar date in each year from 1797 to 1904. 1904 had 30 records. 05001,0001,5002,0001797: 11807: 11809: 21816: 11830: 11832: 11838: 11840: 11842: 11846: 11849: 11850: 11852: 11858: 31863: 51867: 41870: 31871: 11873: 11875: 21877: 11883: 21884: 21885: 61886: 11888: 11889: 21890: 21891: 21892: 61893: 11894: 11895: 11896: 51897: 61898: 11899: 51900: 71901: 121902: 31903: 71904: 301905: 71906: 261907: 151908: 211909: 691910: 71911: 181912: 251913: 231914: 151915: 141916: 741917: 511918: 691919: 251920: 471921: 231922: 521923: 831924: 1321925: 1931926: 1871927: 3381928: 1011929: 2131930: 3181931: 2141932: 2991933: 3241934: 3761935: 3391936: 5431937: 5371938: 2501939: 4481940: 6951941: 2301942: 4291943: 4361944: 3551945: 3981946: 3491947: 9881948: 4031949: 4311950: 1,3411951: 8241952: 4251953: 4411954: 4761955: 8481956: 6781957: 3421958: 2811959: 7641960: 4651961: 5201962: 6841963: 5771964: 6291965: 4701966: 1,0941967: 6571968: 8621969: 6081970: 4141971: 5851972: 5221973: 4901974: 5651975: 4111976: 8941977: 8601978: 5631979: 1,0091980: 9911981: 8561982: 6201983: 1,4651984: 6961985: 6661986: 8191987: 5641988: 9911989: 6031990: 1,2621991: 8041992: 1,1681993: 7591994: 7191995: 1,1131996: 9001997: 1,2141998: 8021999: 8102000: 9892001: 9092002: 1,2082003: 1,0312004: 1,3332005: 1,1122006: 8512007: 1,9552008: 1,1702009: 1,4142010: 1,0282011: 9872012: 1,0862013: 5452014: 5822015: 1,0752016: 8722017: 3242018: 6572019: 6982020: 1,0512021: 1,0282022: 1,0382023: 1,4792024: 5892025: 1,1342026: 9851797187118971914193119481965198219992016
Records set or tied on this calendar date in each year from 1797 to 1904. 1904 had 30 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-20 in each year
YearRecords
17971
18071
18092
18161
18301
18321
18381
18401
18421
18461
18491
18501
18521
18583
18635
18674
18703
18711
18731
18752
18771
18832
18842
18856
18861
18881
18892
18902
18912
18926
18931
18941
18951
18965
18976
18981
18995
19007
190112
19023
19037
190430
19057
190626
190715
190821
190969
19107
191118
191225
191323
191415
191514
191674
191751
191869
191925
192047
192123
192252
192383
1924132
1925193
1926187
1927338
1928101
1929213
1930318
1931214
1932299
1933324
1934376
1935339
1936543
1937537
1938250
1939448
1940695
1941230
1942429
1943436
1944355
1945398
1946349
1947988
1948403
1949431
19501,341
1951824
1952425
1953441
1954476
1955848
1956678
1957342
1958281
1959764
1960465
1961520
1962684
1963577
1964629
1965470
19661,094
1967657
1968862
1969608
1970414
1971585
1972522
1973490
1974565
1975411
1976894
1977860
1978563
19791,009
1980991
1981856
1982620
19831,465
1984696
1985666
1986819
1987564
1988991
1989603
19901,262
1991804
19921,168
1993759
1994719
19951,113
1996900
19971,214
1998802
1999810
2000989
2001909
20021,208
20031,031
20041,333
20051,112
2006851
20071,955
20081,170
20091,414
20101,028
2011987
20121,086
2013545
2014582
20151,075
2016872
2017324
2018657
2019698
20201,051
20211,028
20221,038
20231,479
2024589
20251,134
2026985

Download the Data

  • Data for records on 1904-08-20: 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).