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Built 2026-10-16 (16 October 2026)

Weather Records on 21 April 1915

24 weather records were set or tied worldwide on 21 April 1915. Highest significance: Edmonton, CA.

Key Facts for 21 April 1915

  • On 21 April 1915, 24 weather records were set or tied at long-record stations worldwide.
  • 9 were record highs and 5 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 24 daily.
  • Edmonton set a daily record snowfall of 7.1 cm (2.8 in) on 21 April 1915.
  • Across 159 earlier years (1793 to 2026) the same calendar date averaged 465 records.

Record Map

24 stations
Weather records on 21 April 1915 24 station records on 21 April 1915 are marked on the map, coloured by record type.
24 station records on 21 April 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 April 1915: highest significance records shown on the map
StationCountryTypeValueSignificance
EdmontonCanadaRecord daily snowfall7.1 cm (2.8 in)28 of 100 (Routine)
Anticosti SW PointCanadaRecord low minimum temperature-12.2 C (10.0 F)26 of 100 (Routine)
Charlotte WatersAustraliaRecord daily precipitation4.6 mm (0.18 in)19 of 100 (Routine)
Svenska HogarnaSwedenRecord daily precipitation7.9 mm (0.31 in)15 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord high minimum temperature8.3 C (46.9 F)14 of 100 (Routine)
Windsor RiversideCanadaRecord high minimum temperature11.7 C (53.1 F)14 of 100 (Routine)
TilchaAustraliaRecord daily precipitation2.5 mm (0.10 in)13 of 100 (Routine)
Milparinka HotelAustraliaRecord daily precipitation1.0 mm (0.04 in)13 of 100 (Routine)
Barkly West (Tnk)South AfricaRecord daily precipitation9.9 mm (0.39 in)13 of 100 (Routine)
MinnedosaCanadaRecord high minimum temperature6.7 C (44.1 F)11 of 100 (Routine)
Tylden "Tulden"South AfricaRecord daily precipitation1.8 mm (0.07 in)11 of 100 (Routine)
NewlandsSouth AfricaRecord daily precipitation4.3 mm (0.17 in)11 of 100 (Routine)
Huron Rgnl APUnited StatesRecord high minimum temperature10.6 C (51.1 F)11 of 100 (Routine)
Ilulissat (Jakobshavn)Greenland [Denmark]Record daily precipitation3.6 mm (0.14 in)10 of 100 (Routine)
DurhamUnited KingdomRecord low minimum temperature-1.7 C (28.9 F)10 of 100 (Routine)
MinnedosaCanadaRecord high maximum temperature29.4 C (84.9 F)8 of 100 (Routine)
Girilambone (Booroomugga)AustraliaRecord daily precipitation1.8 mm (0.07 in)7 of 100 (Routine)
HarnosandSwedenRecord high minimum temperature2.2 C (36.0 F)7 of 100 (Routine)
St AlbansCanadaRecord high maximum temperature30.6 C (87.1 F)6 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord high maximum temperature27.8 C (82.0 F)3 of 100 (Routine)
Portland Rfc CityUnited StatesRecord low minimum temperature2.8 C (37.0 F)3 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord low minimum temperature6.0 C (42.8 F)2 of 100 (Routine)
Bird RocksCanadaRecord high maximum temperature10.6 C (51.1 F)2 of 100 (Routine)
SheffieldUnited KingdomRecord low minimum temperature0.6 C (33.1 F)2 of 100 (Routine)

Counts by Type and Timescale

24 records
Records on 21 April 1915 by type Records set or tied on 21 April 1915 by type: Highest daily maximum 4, Highest daily minimum 5, Lowest daily minimum 5, Heaviest daily rainfall 9, Heaviest daily snowfall 1. 035810Highest daily maximum: 4Lowest daily maximum: 0Highest daily minimum: 5Lowest daily minimum: 5Heaviest daily rainfall: 9Heaviest daily snowfall: 1Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 April 1915 by type: Highest daily maximum 4, Highest daily minimum 5, Lowest daily minimum 5, Heaviest daily rainfall 9, Heaviest daily snowfall 1.
Records on 21 April 1915 by type
Record typeRecords
Highest daily maximum4
Lowest daily maximum0
Highest daily minimum5
Lowest daily minimum5
Heaviest daily rainfall9
Heaviest daily snowfall1
Deepest snow cover0
Records on 21 April 1915 by timescale Records on 21 April 1915 by timescale: all-time 0, monthly 0, daily 24. 0102030all-time: 0monthly: 0daily: 24all-timemonthlydaily
Records on 21 April 1915 by timescale: all-time 0, monthly 0, daily 24.
Records on 21 April 1915 by timescale
TimescaleRecords
all-time0
monthly0
daily24

How Much Records Were Beaten By

19 broken records
Histogram of margins by which records were beaten on 21 April 1915 Margins by which the 19 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.0. Ties are not counted. 051015200 to 10: 1810 to 20: 020 to 30: 030 to 40: 040 to 50: 050 to 60: 060 to 70: 070 to 80: 10 to 1010 to 2020 to 3030 to 4040 to 5050 to 6060 to 7070 to 80
Margins by which the 19 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.0. Ties are not counted.
Histogram of margins by which records were beaten on 21 April 1915
MarginRecords
0 to 1018
10 to 200
20 to 300
30 to 400
40 to 500
50 to 600
60 to 700
70 to 801

Top 20 by Significance

21 April 1915
Top 20 records on 21 April 1915 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 April 1915Edmonton, CAdaily snowfall7.1 cm (2.8 in)7.1 cm (2.8 in)33 years28 of 100 (Routine)
21 April 1915Anticosti SW Point, CAdaily low min-12.2 C (10.0 F)5.0 C (9.0 F)33 years26 of 100 (Routine)
21 April 1915Charlotte Waters, AUdaily rain4.6 mm (0.18 in)4.6 mm (0.18 in)40 years19 of 100 (Routine)
21 April 1915Svenska Hogarna, SEdaily rain7.9 mm (0.31 in)1.3 mm (0.05 in)26 years15 of 100 (Routine)
21 April 1915Winnipeg St Johns Coll, CAdaily high min8.3 C (46.9 F)0.5 C (0.9 F)35 years14 of 100 (Routine)
21 April 1915Windsor Riverside, CAdaily high min11.7 C (53.1 F)0.6 C (1.1 F)29 years14 of 100 (Routine)
21 April 1915Tilcha, AUdaily rain2.5 mm (0.10 in)2.5 mm (0.10 in)29 years13 of 100 (Routine)
21 April 1915Milparinka Hotel, AUdaily rain1.0 mm (0.04 in)1.0 mm (0.04 in)32 years13 of 100 (Routine)
21 April 1915Barkly West (Tnk), ZAdaily rain9.9 mm (0.39 in)3.0 mm (0.12 in)23 years13 of 100 (Routine)
21 April 1915Minnedosa, CAdaily high min6.7 C (44.1 F)0.6 C (1.1 F)23 years11 of 100 (Routine)
21 April 1915Tylden "Tulden", ZAdaily rain1.8 mm (0.07 in)0.5 mm (0.02 in)26 years11 of 100 (Routine)
21 April 1915Newlands, ZAdaily rain4.3 mm (0.17 in)2.5 mm (0.10 in)17 years11 of 100 (Routine)
21 April 1915Huron Rgnl AP, USdaily high min10.6 C (51.1 F)0.6 C (1.1 F)23 years11 of 100 (Routine)
21 April 1915Ilulissat (Jakobshavn), GLdaily rain3.6 mm (0.14 in)0.4 mm (0.02 in)15 years10 of 100 (Routine)
21 April 1915Durham, GBdaily low min-1.7 C (28.9 F)0.5 C (0.9 F)20 years10 of 100 (Routine)
21 April 1915Minnedosa, CAdaily high max29.4 C (84.9 F)3.8 C (6.8 F)1 year8 of 100 (Routine)
21 April 1915Girilambone (Booroomugga), AUdaily rain1.8 mm (0.07 in)1.0 mm (0.04 in)13 years7 of 100 (Routine)
21 April 1915Harnosand, SEdaily high min2.2 C (36.0 F)1.2 C (2.2 F)4 years7 of 100 (Routine)
21 April 1915St Albans, CAdaily high max30.6 C (87.1 F)2.8 C (5.0 F)1 year6 of 100 (Routine)
21 April 1915Winnipeg St Johns Coll, CAdaily high max (Tie)27.8 C (82.0 F)tie28 years3 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

1793 to 1915
Records on 04-21 in each year Records set or tied on this calendar date in each year from 1793 to 1915. 1915 had 24 records. 05001,0001,5002,0001793: 11814: 11820: 11838: 11849: 21851: 11852: 31854: 11858: 31861: 21865: 31866: 11868: 11870: 11875: 41876: 21877: 11879: 31880: 11881: 11882: 11884: 11885: 21888: 11890: 11891: 11892: 11893: 21894: 41895: 11897: 11898: 21899: 21900: 71901: 171902: 71903: 31904: 101905: 181906: 51907: 171908: 251909: 201910: 331911: 91912: 221913: 141914: 2201915: 241916: 641917: 481918: 841919: 311920: 851921: 591922: 701923: 2231924: 1191925: 2951926: 1481927: 2841928: 2691929: 1931930: 1271931: 3581932: 3041933: 2011934: 4971935: 2661936: 2771937: 4161938: 2951939: 1101940: 4621941: 3061942: 2851943: 4811944: 2611945: 3671946: 4481947: 4591948: 3651949: 4481950: 5291951: 8841952: 6651953: 6401954: 5271955: 6071956: 4971957: 8241958: 3291959: 5051960: 8891961: 6471962: 3191963: 7781964: 1,1251965: 6581966: 7561967: 9031968: 6551969: 3881970: 7281971: 5461972: 5931973: 1,1631974: 5281975: 3601976: 4521977: 8541978: 7351979: 4491980: 1,9341981: 9441982: 1,0751983: 1,3661984: 1,2311985: 1,2451986: 9771987: 1,2901988: 8981989: 1,5571990: 1,4631991: 1,2911992: 1,7631993: 8471994: 8591995: 1,4761996: 7881997: 9641998: 8761999: 7522000: 9212001: 9672002: 1,3122003: 6072004: 5862005: 6932006: 7612007: 4802008: 1,3272009: 9832010: 8052011: 1,0532012: 6872013: 1,0152014: 3932015: 6212016: 5872017: 7972018: 8622019: 7312020: 3972021: 1,6082022: 4332023: 8862024: 7542025: 5062026: 8531793187718991915193119471963197919952011
Records set or tied on this calendar date in each year from 1793 to 1915. 1915 had 24 records.
Counts for years before the ledger starts come from the same station rules.
Records on 04-21 in each year
YearRecords
17931
18141
18201
18381
18492
18511
18523
18541
18583
18612
18653
18661
18681
18701
18754
18762
18771
18793
18801
18811
18821
18841
18852
18881
18901
18911
18921
18932
18944
18951
18971
18982
18992
19007
190117
19027
19033
190410
190518
19065
190717
190825
190920
191033
19119
191222
191314
1914220
191524
191664
191748
191884
191931
192085
192159
192270
1923223
1924119
1925295
1926148
1927284
1928269
1929193
1930127
1931358
1932304
1933201
1934497
1935266
1936277
1937416
1938295
1939110
1940462
1941306
1942285
1943481
1944261
1945367
1946448
1947459
1948365
1949448
1950529
1951884
1952665
1953640
1954527
1955607
1956497
1957824
1958329
1959505
1960889
1961647
1962319
1963778
19641,125
1965658
1966756
1967903
1968655
1969388
1970728
1971546
1972593
19731,163
1974528
1975360
1976452
1977854
1978735
1979449
19801,934
1981944
19821,075
19831,366
19841,231
19851,245
1986977
19871,290
1988898
19891,557
19901,463
19911,291
19921,763
1993847
1994859
19951,476
1996788
1997964
1998876
1999752
2000921
2001967
20021,312
2003607
2004586
2005693
2006761
2007480
20081,327
2009983
2010805
20111,053
2012687
20131,015
2014393
2015621
2016587
2017797
2018862
2019731
2020397
20211,608
2022433
2023886
2024754
2025506
2026853

Download the Data

  • Data for records on 1915-04-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).