Built 2026-10-15 (15 October 2026)

Weather Records on 21 April 2015

621 weather records were set or tied worldwide on 21 April 2015. Highest significance: Sedgefield (Bundajon), AU.

Key Facts for 21 April 2015

  • On 21 April 2015, 621 weather records were set or tied at long-record stations worldwide.
  • 169 were record highs and 140 were record lows, counting maximum and minimum temperature.
  • By timescale, 8 were all-time records, 29 monthly and 584 daily.
  • Sedgefield (Bundajon) set an all-time record daily precipitation of 207.2 mm (8.2 in) on 21 April 2015.
  • Across 159 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

621 stations
Weather records on 21 April 2015 621 station records on 21 April 2015 are marked on the map, coloured by record type.
621 station records on 21 April 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 April 2015: highest significance records shown on the map
StationCountryTypeValueSignificance
Sedgefield (Bundajon)AustraliaRecord daily precipitation207.2 mm (8.2 in)88 of 100 (Exceptional)
Glendon Brook (Lilyvale)AustraliaRecord daily precipitation200.0 mm (7.9 in)80 of 100 (Exceptional)
Branxton (Dalwood Vineyard)AustraliaRecord daily precipitation160.0 mm (6.3 in)79 of 100 (Major)
ElderslieAustraliaRecord daily precipitation175.0 mm (6.9 in)73 of 100 (Major)
Congewai (Greenock)AustraliaRecord daily precipitation200.0 mm (7.9 in)70 of 100 (Major)
Clarence Town (Grey St)AustraliaRecord daily precipitation212.6 mm (8.4 in)69 of 100 (Major)
Stroud Post OfficeAustraliaRecord daily precipitation164.4 mm (6.5 in)69 of 100 (Major)
Chichester DamAustraliaRecord daily precipitation132.0 mm (5.2 in)66 of 100 (Major)
Nelson Bay (Nelson Head)AustraliaRecord daily precipitation168.0 mm (6.6 in)65 of 100 (Major)
Dungog (Leawood)AustraliaRecord daily precipitation250.0 mm (9.8 in)65 of 100 (Major)
Lithgow (Cooerwull)AustraliaRecord daily precipitation64.2 mm (2.5 in)65 of 100 (Major)
Rookwood (Hawthorne Ave)AustraliaRecord daily precipitation134.0 mm (5.3 in)65 of 100 (Major)
Strathfield Golf ClubAustraliaRecord daily precipitation109.0 mm (4.3 in)64 of 100 (Major)
Blackheath (Lawrence St)AustraliaRecord daily precipitation132.6 mm (5.2 in)62 of 100 (Major)
Richmond - Uws HawkesburyAustraliaRecord daily precipitation110.0 mm (4.3 in)62 of 100 (Major)
Maroota ( Roberts Road)AustraliaRecord daily precipitation161.0 mm (6.3 in)61 of 100 (Major)
Paterson (Tocal AWS)AustraliaRecord daily precipitation242.6 mm (9.6 in)60 of 100 (Major)
Concord Golf ClubAustraliaRecord daily precipitation136.2 mm (5.4 in)60 of 100 (Major)
Prospect ReservoirAustraliaRecord daily precipitation100.6 mm (4.0 in)60 of 100 (Major)
CarlindieAustraliaRecord daily precipitation47.0 mm (1.9 in)58 of 100 (Notable)
Wisemans Ferry (Old Po)AustraliaRecord daily precipitation137.0 mm (5.4 in)58 of 100 (Notable)
Randwick Bowling ClubAustraliaRecord daily precipitation114.6 mm (4.5 in)58 of 100 (Notable)
Dungog - Main Creek (Yeranda)AustraliaRecord daily precipitation188.0 mm (7.4 in)57 of 100 (Notable)
Dungog Post OfficeAustraliaRecord daily precipitation233.4 mm (9.2 in)56 of 100 (Notable)
Kulnura (Mangrove Creek Dam)AustraliaRecord daily precipitation130.5 mm (5.1 in)56 of 100 (Notable)
Macquarie Park (Willandra VillAustraliaRecord daily precipitation127.4 mm (5.0 in)56 of 100 (Notable)
Dural (Old Northern Road)AustraliaRecord daily precipitation154.6 mm (6.1 in)56 of 100 (Notable)
GardinerUnited StatesRecord daily precipitation55.9 mm (2.2 in)55 of 100 (Notable)
Lostock DamAustraliaRecord daily precipitation135.0 mm (5.3 in)54 of 100 (Notable)
Sans Souci (Public School)AustraliaRecord daily precipitation90.0 mm (3.5 in)54 of 100 (Notable)
Parramatta North (Masons DriveAustraliaRecord daily precipitation130.0 mm (5.1 in)54 of 100 (Notable)
Newcastle Nobbys Signal StatioAustraliaRecord daily precipitation99.2 mm (3.9 in)52 of 100 (Notable)
Towanda 1 SUnited StatesRecord daily precipitation40.6 mm (1.6 in)51 of 100 (Notable)
Pennant Hills (Yarrara Road)AustraliaRecord daily precipitation156.2 mm (6.1 in)50 of 100 (Notable)
Turramurra (Kissing Point RoadAustraliaRecord daily precipitation166.6 mm (6.6 in)50 of 100 (Notable)
Seven Hills (Collins St)AustraliaRecord daily precipitation100.8 mm (4.0 in)50 of 100 (Notable)
ConshohockenUnited StatesRecord daily precipitation43.7 mm (1.7 in)50 of 100 (Notable)
Carrow BrookAustraliaRecord daily precipitation108.8 mm (4.3 in)49 of 100 (Notable)
Sydney Botanic GardensAustraliaRecord daily precipitation126.4 mm (5.0 in)49 of 100 (Notable)
Randwick RacecourseAustraliaRecord daily precipitation91.0 mm (3.6 in)49 of 100 (Notable)
Avalon Beach (Avalon (PalmgrovAustraliaRecord daily precipitation94.4 mm (3.7 in)49 of 100 (Notable)
Frenchs Forest (Frenchs ForestAustraliaRecord daily precipitation134.0 mm (5.3 in)49 of 100 (Notable)
Colo Heights (Mountain Pines)AustraliaRecord daily precipitation121.4 mm (4.8 in)48 of 100 (Notable)
Mount Wilson (Clarine)AustraliaRecord daily precipitation111.6 mm (4.4 in)48 of 100 (Notable)
Duffys Forest (Namba Rd)AustraliaRecord daily precipitation180.0 mm (7.1 in)48 of 100 (Notable)
Glenorie (Old Northern Rd)AustraliaRecord daily precipitation160.0 mm (6.3 in)48 of 100 (Notable)
FranklinUnited StatesRecord daily precipitation51.3 mm (2.0 in)48 of 100 (Notable)
KuparukUnited StatesRecord daily snowfall12.7 cm (5.0 in)48 of 100 (Notable)
Raymond Terrace (Kinross)AustraliaRecord daily precipitation150.0 mm (5.9 in)47 of 100 (Notable)
Williamtown RaafAustraliaRecord daily precipitation156.0 mm (6.1 in)47 of 100 (Notable)
Lucas Heights (Ansto)AustraliaRecord daily precipitation95.0 mm (3.7 in)47 of 100 (Notable)
NiigataJapanRecord daily precipitation40.4 mm (1.6 in)47 of 100 (Notable)
Rouchel Brook (Albano)AustraliaRecord daily precipitation56.8 mm (2.2 in)46 of 100 (Notable)
Doyles Creek (Wood Park)AustraliaRecord daily precipitation56.2 mm (2.2 in)45 of 100 (Notable)
Gosford North (Glennie St)AustraliaRecord daily precipitation140.0 mm (5.5 in)45 of 100 (Notable)
Upper Chichester (Simmonds)AustraliaRecord daily precipitation89.0 mm (3.5 in)45 of 100 (Notable)
Darkes Forest (Kintyre)AustraliaRecord daily precipitation121.8 mm (4.8 in)45 of 100 (Notable)
CedarvilleUnited StatesRecord high minimum temperature12.2 C (54.0 F)45 of 100 (Notable)
Mahanoy City 2 NUnited StatesRecord daily precipitation58.4 mm (2.3 in)44 of 100 (Notable)
Nyngan (Mudall)AustraliaRecord daily precipitation31.0 mm (1.2 in)43 of 100 (Notable)

Counts by Type and Timescale

621 records
Records on 21 April 2015 by type Records set or tied on 21 April 2015 by type: Highest daily maximum 75, Lowest daily maximum 101, Highest daily minimum 94, Lowest daily minimum 39, Heaviest daily rainfall 293, Heaviest daily snowfall 16, Deepest snow cover 3. 0100200300Highest daily maximum: 75Lowest daily maximum: 101Highest daily minimum: 94Lowest daily minimum: 39Heaviest daily rainfall: 293Heaviest daily snowfall: 16Deepest snow cover: 3Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 April 2015 by type: Highest daily maximum 75, Lowest daily maximum 101, Highest daily minimum 94, Lowest daily minimum 39, Heaviest daily rainfall 293, Heaviest daily snowfall 16, Deepest snow cover 3.
Records on 21 April 2015 by type
Record typeRecords
Highest daily maximum75
Lowest daily maximum101
Highest daily minimum94
Lowest daily minimum39
Heaviest daily rainfall293
Heaviest daily snowfall16
Deepest snow cover3
Records on 21 April 2015 by timescale Records on 21 April 2015 by timescale: all-time 8, monthly 29, daily 584. 0200400600all-time: 8monthly: 29daily: 584all-timemonthlydaily
Records on 21 April 2015 by timescale: all-time 8, monthly 29, daily 584.
Records on 21 April 2015 by timescale
TimescaleRecords
all-time8
monthly29
daily584

How Much Records Were Beaten By

544 broken records
Histogram of margins by which records were beaten on 21 April 2015 Margins by which the 544 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 150.6. Ties are not counted. 02004006000 to 20: 44620 to 40: 4640 to 60: 2760 to 80: 1180 to 100: 6100 to 120: 5120 to 140: 1140 to 160: 20 to 2020 to 4040 to 6060 to 8080 to 100100 to 120120 to 140140 to 160
Margins by which the 544 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 150.6. Ties are not counted.
Histogram of margins by which records were beaten on 21 April 2015
MarginRecords
0 to 20446
20 to 4046
40 to 6027
60 to 8011
80 to 1006
100 to 1205
120 to 1401
140 to 1602

Top 20 by Significance

21 April 2015
Top 20 records on 21 April 2015 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 April 2015Sedgefield (Bundajon), AUall-time rain207.2 mm (8.2 in)60.4 mm (2.4 in)60 years88 of 100 (Exceptional)
21 April 2015Glendon Brook (Lilyvale), AUall-time rain200.0 mm (7.9 in)72.0 mm (2.8 in)50 years80 of 100 (Exceptional)
21 April 2015Branxton (Dalwood Vineyard), AUmonthly rain160.0 mm (6.3 in)43.2 mm (1.7 in)88 years79 of 100 (Major)
21 April 2015Elderslie, AUall-time rain175.0 mm (6.9 in)39.1 mm (1.5 in)50 years73 of 100 (Major)
21 April 2015Congewai (Greenock), AUmonthly rain200.0 mm (7.9 in)84.9 mm (3.3 in)51 years70 of 100 (Major)
21 April 2015Clarence Town (Grey St), AUdaily rain212.6 mm (8.4 in)150.6 mm (5.9 in)65 years69 of 100 (Major)
21 April 2015Stroud Post Office, AUdaily rain164.4 mm (6.5 in)60.8 mm (2.4 in)84 years69 of 100 (Major)
21 April 2015Chichester Dam, AUdaily rain132.0 mm (5.2 in)83.7 mm (3.3 in)65 years66 of 100 (Major)
21 April 2015Nelson Bay (Nelson Head), AUmonthly rain168.0 mm (6.6 in)42.3 mm (1.7 in)65 years65 of 100 (Major)
21 April 2015Dungog (Leawood), AUall-time rain250.0 mm (9.8 in)71.6 mm (2.8 in)7 years65 of 100 (Major)
21 April 2015Lithgow (Cooerwull), AUdaily rain64.2 mm (2.5 in)49.0 mm (1.9 in)50 years65 of 100 (Major)
21 April 2015Rookwood (Hawthorne Ave), AUdaily rain134.0 mm (5.3 in)100.0 mm (3.9 in)62 years65 of 100 (Major)
21 April 2015Strathfield Golf Club, AUdaily rain109.0 mm (4.3 in)77.2 mm (3.0 in)62 years64 of 100 (Major)
21 April 2015Blackheath (Lawrence St), AUdaily rain132.6 mm (5.2 in)59.4 mm (2.3 in)50 years62 of 100 (Major)
21 April 2015Richmond - Uws Hawkesbury, AUdaily rain110.0 mm (4.3 in)63.9 mm (2.5 in)40 years62 of 100 (Major)
21 April 2015Maroota ( Roberts Road), AUdaily rain161.0 mm (6.3 in)75.8 mm (3.0 in)40 years61 of 100 (Major)
21 April 2015Paterson (Tocal AWS), AUall-time rain242.6 mm (9.6 in)42.4 mm (1.7 in)7 years60 of 100 (Major)
21 April 2015Concord Golf Club, AUdaily rain136.2 mm (5.4 in)94.2 mm (3.7 in)40 years60 of 100 (Major)
21 April 2015Prospect Reservoir, AUdaily rain100.6 mm (4.0 in)48.0 mm (1.9 in)50 years60 of 100 (Major)
21 April 2015Carlindie, AUdaily rain47.0 mm (1.9 in)47.0 mm (1.9 in)106 years58 of 100 (Notable)

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 2015
Records on 04-21 in each year Records set or tied on this calendar date in each year from 1793 to 2015. 2015 had 621 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 2015. 2015 had 621 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 2015-04-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

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