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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Cold outbreak in Australia, 10 to 27 April 2021

Cold outbreak in Australia, 10 to 27 April 2021: 308 records at 137 stations, peak on 11 April 2021. Closed.

Data as of . Last revised (2026-10-17).

Key Facts

  • Cold outbreak in Australia, 10 to 27 April 2021 set or tied 308 station records at 137 stations.
  • It ran from 10 April 2021 to 27 April 2021 (18 days) and its peak day was 11 April 2021.
  • Status: closed.
  • Adelaide West Terrace set a daily record low minimum temperature of 6.4 C (43.5 F) on 21 April 2021.
  • The busiest day was 11 April 2021 with 42 records.
  • The oldest broken record in the ranked list had stood for 112 years.

Footprint

10 to 27 April 2021
Footprint of Cold outbreak in Australia, 10 to 27 April 2021 The area covered by Cold outbreak in Australia, 10 to 27 April 2021 is outlined, with 19 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in Australia, 10 to 27 April 2021 is outlined, with 19 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Cold outbreak in Australia, 10 to 27 April 2021: stations that set records in the event
StationTypeValueDate
Adelaide West TerraceRecord low minimum temperature6.4 C (43.5 F)2021-04-21
Wilsons Promontory LighthouseRecord low minimum temperature8.0 C (46.4 F)2021-04-11
Archerfield AirportRecord low maximum temperature22.0 C (71.6 F)2021-04-22
Wagga Wagga AMORecord low minimum temperature0.8 C (33.4 F)2021-04-18
Coffs Harbour MoRecord low minimum temperature8.1 C (46.6 F)2021-04-22
East Sale ComparisonRecord low minimum temperature3.1 C (37.6 F)2021-04-13
Double Island Point LighthouseRecord low minimum temperature13.8 C (56.8 F)2021-04-23
Bairnsdale AirportRecord low minimum temperature4.4 C (39.9 F)2021-04-19
EudundaRecord low minimum temperature-0.9 C (30.4 F)2021-04-21
Cobar MoRecord low minimum temperature3.0 C (37.4 F)2021-04-22
Brisbane AeroRecord low minimum temperature9.7 C (49.5 F)2021-04-23
Mount WellingtonRecord low maximum temperature0.0 C (32.0 F)2021-04-11
Yarras (Mount Seaview)Record low minimum temperature4.8 C (40.6 F)2021-04-23
Mungindi Post OfficeRecord low maximum temperature18.1 C (64.6 F)2021-04-17
Inverell Research CentreRecord low maximum temperature14.0 C (57.2 F)2021-04-17
Yamba Pilot StationRecord low maximum temperature19.4 C (66.9 F)2021-04-17
Paterson (Tocal AWS)Record low maximum temperature15.6 C (60.1 F)2021-04-17
Wellington (Agrowplow)Record low minimum temperature0.5 C (32.9 F)2021-04-12
Collarenebri (Albert St)Record low minimum temperature3.2 C (37.8 F)2021-04-22

Records per Day

Peak day 42
Records per day during Cold outbreak in Australia, 10 to 27 April 2021 Records set or tied each day from 10 April 2021 to 27 April 2021. The most in one day was 42 on 11 April 2021. 0 13 25 38 50 04-1004-1204-1404-1604-1804-2004-2204-2404-26
Records set or tied each day from 10 April 2021 to 27 April 2021. The most in one day was 42 on 11 April 2021.
Records per day during Cold outbreak in Australia, 10 to 27 April 2021
DateRecords
2021-04-106
2021-04-1142
2021-04-1223
2021-04-1333
2021-04-1419
2021-04-152
2021-04-166
2021-04-1725
2021-04-1815
2021-04-1912
2021-04-2014
2021-04-2133
2021-04-2228
2021-04-2317
2021-04-2419
2021-04-2511
2021-04-262
2021-04-271

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in Australia, 10 to 27 April 2021 ranked by margin
Inverell Research Centre, 04-173.5 C (6.3 F)
Wellington (Agrowplow), 04-123.5 C (6.3 F)
Eudunda, 04-213.2 C (5.8 F)
Yarras (Mount Seaview), 04-232.7 C (4.9 F)
Wilsons Promontory Lighthouse, 04-112.6 C (4.7 F)
Mount Wellington, 04-112.5 C (4.5 F)
Mungindi Post Office, 04-172.5 C (4.5 F)
Collarenebri (Albert St), 04-222.4 C (4.3 F)
Yamba Pilot Station, 04-171.9 C (3.4 F)
Wagga Wagga AMO, 04-181.4 C (2.5 F)
East Sale Comparison, 04-131.3 C (2.3 F)
Double Island Point Lighthouse, 04-231.2 C (2.2 F)
East Sale Comparison, 04-111.0 C (1.8 F)
Adelaide West Terrace, 04-210.9 C (1.6 F)
Coffs Harbour Mo, 04-220.9 C (1.6 F)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

Margin against age of the broken record in Cold outbreak in Australia, 10 to 27 April 2021 308 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right. 0 30 60 90 120 0.01.32.53.85.0 Margin (C) Years the old record stood
308 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.
Margin against age of the broken record in Cold outbreak in Australia, 10 to 27 April 2021
Margin (C)Years the old record stood
0.9112
0.780
2.659
1.476
0.978
1.371
1.260
3.221
0.276
1.071
0.470
0.244
2.748
2.556
2.552
3.538
1.938
0.538
2.450
3.542
2.047
2.446
1.756
1.848
0.956
0.460
1.850
0.760
0.160
1.844
1.738
2.048
0.355
1.121
0.756
0.952
2.336
1.156
3.434
2.038
2.038
0.752
1.052
0.656
2.040
2.539
2.044
1.242
2.927
0.552
0.750
0.848
0.650
1.634
0.128
0.444
0.548
1.731
1.242
2.032
0.742
1.044
1.538
2.134
2.824
0.544
0.444
0.744
1.138
3.015
1.630
0.743
0.738
4.110
0.147
4.410
3.020
0.544
0.114
0.347
0.542
2.127
0.842
0.636
1.422
3.26
0.638
0.938
0.440
0.244
0.542
0.344
0.838
1.138
1.034
0.544
0.644
0.246
2.124
0.834
2.324
1.530
0.835
1.727
0.142
0.539
1.927
2.518
0.635
1.527
0.927
1.824
0.727
0.827
0.727
0.932
1.627
2.420
1.420
1.027
0.736
0.338
0.134
2.328
0.726
0.926
0.527
0.420
1.522
1.426
1.624
1.620
0.332
2.310
0.827
0.235
2.48
0.626
0.828
1.027
0.630
2.424
1.126
0.234
2.423
1.027
2.110
0.827
1.320
0.330
2.220
0.627
0.624
2.410
0.924
1.420
0.427
1.126
0.331
3.26
0.527
0.427
0.830
0.528
0.920
0.528
0.632
1.015
0.527
2.415
0.327
0.127
1.020
0.827
1.98
1.815
0.624
0.524
1.915
0.424
0.624
1.714
0.327
1.620
0.326
0.832
1.220
0.922
0.220
0.224
0.620
1.910
0.224
0.224
0.522
0.522
1.618
0.522
0.727
2.88

Compared With Other Events

Station records per event
Station records in Cold outbreak in Australia, 10 to 27 April 2021 compared with similar events
Cold outbreak in United States and Mexico, 6 February to 5 March 202112,118 records
Cold outbreak in United States and Mexico, 13 October to 5 November 20209,841 records
Cold outbreak in United States and Mexico, 23 December 2017 to 8 January 20188,263 records
Cold outbreak in United States and Mexico, 3 to 23 January 20247,675 records
Cold outbreak in United States, 15 January to 10 February 20265,568 records
Cold outbreak in Australia, 10 to 27 April 2021 (this event)308 records

Every Record Set

20 of 308
Every record set or tied during Cold outbreak in Australia, 10 to 27 April 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-04-11Wilsons Promontory LighthouseRecord low minimum temperature8.0 C (46.4 F)2.6 C (4.7 F)5935 of 100 (Notable)
2021-04-11East Sale ComparisonRecord low maximum temperature14.6 C (58.3 F)1.0 C (1.8 F)7130 of 100 (Routine)
2021-04-11Mount WellingtonRecord low maximum temperature0.0 C (32.0 F)2.5 C (4.5 F)5628 of 100 (Routine)
2021-04-12Wellington (Agrowplow)Record low minimum temperature0.5 C (32.9 F)3.5 C (6.3 F)4226 of 100 (Routine)
2021-04-13East Sale ComparisonRecord low minimum temperature3.1 C (37.6 F)1.3 C (2.3 F)7132 of 100 (Routine)
2021-04-17Mungindi Post OfficeRecord low maximum temperature18.1 C (64.6 F)2.5 C (4.5 F)5227 of 100 (Routine)
2021-04-17Inverell Research CentreRecord low maximum temperature14.0 C (57.2 F)3.5 C (6.3 F)3827 of 100 (Routine)
2021-04-17Yamba Pilot StationRecord low maximum temperature19.4 C (66.9 F)1.9 C (3.4 F)3827 of 100 (Routine)
2021-04-17Paterson (Tocal AWS)Record low maximum temperature15.6 C (60.1 F)0.5 C (0.9 F)3827 of 100 (Routine)
2021-04-18Wagga Wagga AMORecord low minimum temperature0.8 C (33.4 F)1.4 C (2.5 F)7634 of 100 (Routine)
2021-04-19Bairnsdale AirportRecord low minimum temperature4.4 C (39.9 F)0.2 C (0.4 F)7630 of 100 (Routine)
2021-04-21Adelaide West TerraceRecord low minimum temperature6.4 C (43.5 F)0.9 C (1.6 F)11242 of 100 (Notable)
2021-04-21EudundaRecord low minimum temperature-0.9 C (30.4 F)3.2 C (5.8 F)2130 of 100 (Routine)
2021-04-22Archerfield AirportRecord low maximum temperature22.0 C (71.6 F)0.7 C (1.3 F)8035 of 100 (Notable)
2021-04-22Coffs Harbour MoRecord low minimum temperature8.1 C (46.6 F)0.9 C (1.6 F)7833 of 100 (Routine)
2021-04-22Cobar MoRecord low minimum temperature3.0 C (37.4 F)0.2 C (0.4 F)4429 of 100 (Routine)
2021-04-22Collarenebri (Albert St)Record low minimum temperature3.2 C (37.8 F)2.4 C (4.3 F)5026 of 100 (Routine)
2021-04-23Double Island Point LighthouseRecord low minimum temperature13.8 C (56.8 F)1.2 C (2.2 F)6031 of 100 (Routine)
2021-04-23Brisbane AeroRecord low minimum temperature9.7 C (49.5 F)0.4 C (0.7 F)7029 of 100 (Routine)
2021-04-23Yarras (Mount Seaview)Record low minimum temperature4.8 C (40.6 F)2.7 C (4.9 F)4828 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 308 records the event counts. The counts above use the full total.

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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)) Data as of 2026-10-17. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.