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Built 2026-10-14 (14 October 2026)

Cold outbreak in Australia, 16 to 31 May 2023

Cold outbreak in Australia, 16 to 31 May 2023: 205 records at 109 stations, peak on 19 May 2023. Closed.

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

Key Facts

  • Cold outbreak in Australia, 16 to 31 May 2023 set or tied 205 station records at 109 stations.
  • It ran from 16 May 2023 to 31 May 2023 (16 days) and its peak day was 19 May 2023.
  • Status: closed.
  • Maryborough set a monthly record low minimum temperature of 1.9 C (35.4 F) on 29 May 2023.
  • The busiest day was 19 May 2023 with 30 records.
  • The oldest broken record in the ranked list had stood for 74 years.

Footprint

16 to 31 May 2023
Footprint of Cold outbreak in Australia, 16 to 31 May 2023 The area covered by Cold outbreak in Australia, 16 to 31 May 2023 is outlined, with 16 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in Australia, 16 to 31 May 2023 is outlined, with 16 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Cold outbreak in Australia, 16 to 31 May 2023: stations that set records in the event
StationTypeValueDate
MaryboroughRecord low minimum temperature1.9 C (35.4 F)2023-05-29
Flinders Island AirportRecord low minimum temperature-1.3 C (29.7 F)2023-05-17
Launceston AirportRecord low minimum temperature-1.9 C (28.6 F)2023-05-17
Gabo Island LighthouseRecord low minimum temperature5.7 C (42.3 F)2023-05-19
Bankstown Airport AWSRecord low minimum temperature0.7 C (33.3 F)2023-05-28
Mildura AirportRecord low minimum temperature0.2 C (32.4 F)2023-05-23
Katoomba (Murri St)Record low minimum temperature0.0 C (32.0 F)2023-05-27
Monto TownshipRecord low minimum temperature0.5 C (32.9 F)2023-05-21
HawkerRecord low minimum temperature-1.4 C (29.5 F)2023-05-19
Coonabarabran (Namoi Street)Record low minimum temperature-4.5 C (23.9 F)2023-05-25
University of Queensland GattoRecord low minimum temperature2.2 C (36.0 F)2023-05-28
Bushy Park (Bushy Park EstatesRecord low minimum temperature-3.2 C (26.2 F)2023-05-18
Hillston AirportRecord low minimum temperature-1.5 C (29.3 F)2023-05-19
Barraba Post OfficeRecord low minimum temperature-5.2 C (22.6 F)2023-05-25
Cobar MoRecord low minimum temperature2.5 C (36.5 F)2023-05-20
Dunedoo Post OfficeRecord low minimum temperature-2.6 C (27.3 F)2023-05-27

Records per Day

Peak day 30
Records per day during Cold outbreak in Australia, 16 to 31 May 2023 Records set or tied each day from 16 May 2023 to 31 May 2023. The most in one day was 30 on 19 May 2023. 0 8 15 23 30 05-1605-1805-2005-2205-2405-2605-2805-30
Records set or tied each day from 16 May 2023 to 31 May 2023. The most in one day was 30 on 19 May 2023.
Records per day during Cold outbreak in Australia, 16 to 31 May 2023
DateRecords
2023-05-161
2023-05-1718
2023-05-1818
2023-05-1930
2023-05-2017
2023-05-217
2023-05-228
2023-05-2312
2023-05-2412
2023-05-2510
2023-05-2610
2023-05-2718
2023-05-2828
2023-05-295
2023-05-309
2023-05-312

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in Australia, 16 to 31 May 2023 ranked by margin
Flinders Island Airport, 05-174.0 C (7.2 F)
Hillston Airport, 05-192.5 C (4.5 F)
Hawker, 05-192.3 C (4.1 F)
Maryborough, 05-211.9 C (3.4 F)
Gabo Island Lighthouse, 05-191.7 C (3.1 F)
Katoomba (Murri St), 05-271.7 C (3.1 F)
Barraba Post Office, 05-281.5 C (2.7 F)
Monto Township, 05-211.3 C (2.3 F)
Barraba Post Office, 05-251.2 C (2.2 F)
University of Queensland Gatto, 05-281.1 C (2.0 F)
Bushy Park (Bushy Park Estates, 05-181.0 C (1.8 F)
Dunedoo Post Office, 05-270.9 C (1.6 F)
Launceston Airport, 05-170.8 C (1.4 F)
Cobar Mo, 05-200.8 C (1.4 F)
Gabo Island Lighthouse, 05-180.7 C (1.3 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, 16 to 31 May 2023 205 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 20 40 60 80 0.01.02.03.04.0 Margin (C) Years the old record stood
205 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, 16 to 31 May 2023
Margin (C)Years the old record stood
0.363
4.056
0.874
0.646
1.754
1.758
0.668
1.954
1.357
2.349
1.157
0.265
0.556
1.556
1.256
2.542
0.752
1.056
0.850
0.956
0.457
2.237
0.156
1.642
0.849
0.246
1.540
0.156
1.928
0.552
1.740
1.542
1.444
1.837
3.521
1.244
0.549
0.548
2.328
0.316
0.348
1.428
0.349
0.942
0.222
2.528
0.832
0.236
2.624
0.342
2.024
0.336
0.440
0.641
1.529
1.129
0.436
2.816
0.140
0.636
0.241
2.022
0.141
0.336
1.122
0.938
1.528
0.930
3.212
2.222
2.121
0.636
0.536
1.422
0.736
3.616
1.322
0.18
1.820
0.136
1.221
1.626
0.537
1.321
0.928
1.121
1.130
1.817
1.321
0.529
0.830
0.429
0.617
0.116
1.328
2.71
2.916
0.630
0.329
0.728
1.020
0.330
0.728
0.124
2.41
0.121
1.122
0.816
1.016
2.514
0.618
0.328
1.518
1.122
0.916
0.916
0.624
0.529
1.78
0.624
0.413
0.316
1.112
0.921
0.320
0.128
0.110
2.58
1.020
0.517
0.810
0.616
0.128
0.424
0.324
1.114
1.012
1.110
1.216
0.417
0.118
2.10
0.810
0.420
0.420
0.717
0.617
0.220
0.112
1.19
0.716
0.316
0.220
1.612
1.316
0.122
0.120
0.814
0.512
0.122
0.517
0.221
0.714
0.61
0.612
0.217
0.214
1.012
1.69
1.212
0.310
1.39
1.21
0.117
0.112
0.512
0.412
0.114
0.36
1.12
0.710
1.51
0.98
1.09
0.64
1.14
1.31
0.66
0.79
0.14
0.212
1.04
0.89
0.39
0.112
0.31
0.38
0.14
0.81
0.34

Compared With Other Events

Station records per event
Station records in Cold outbreak in Australia, 16 to 31 May 2023 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, 16 to 31 May 2023 (this event)205 records

Every Record Set

20 of 205
Every record set or tied during Cold outbreak in Australia, 16 to 31 May 2023, in date order
DateStationRecordValueMarginYears stoodSignificance
2023-05-17Flinders Island AirportRecord low minimum temperature-1.3 C (29.7 F)4.0 C (7.2 F)5632 of 100 (Routine)
2023-05-17Launceston AirportRecord low minimum temperature-1.9 C (28.6 F)0.8 C (1.4 F)7431 of 100 (Routine)
2023-05-18Gabo Island LighthouseRecord low minimum temperature7.1 C (44.8 F)0.7 C (1.3 F)5224 of 100 (Routine)
2023-05-18Bushy Park (Bushy Park EstatesRecord low minimum temperature-3.2 C (26.2 F)1.0 C (1.8 F)5624 of 100 (Routine)
2023-05-19Gabo Island LighthouseRecord low minimum temperature5.7 C (42.3 F)1.7 C (3.1 F)5430 of 100 (Routine)
2023-05-19HawkerRecord low minimum temperature-1.4 C (29.5 F)2.3 C (4.1 F)4925 of 100 (Routine)
2023-05-19Hillston AirportRecord low minimum temperature-1.5 C (29.3 F)2.5 C (4.5 F)4224 of 100 (Routine)
2023-05-20Cobar MoRecord low minimum temperature2.5 C (36.5 F)0.8 C (1.4 F)5023 of 100 (Routine)
2023-05-21MaryboroughRecord low minimum temperature3.1 C (37.6 F)1.9 C (3.4 F)5427 of 100 (Routine)
2023-05-21Monto TownshipRecord low minimum temperature0.5 C (32.9 F)1.3 C (2.3 F)5726 of 100 (Routine)
2023-05-23Mildura AirportRecord low minimum temperature0.2 C (32.4 F)0.6 C (1.1 F)6828 of 100 (Routine)
2023-05-25Coonabarabran (Namoi Street)Record low minimum temperature-4.5 C (23.9 F)0.2 C (0.4 F)6525 of 100 (Routine)
2023-05-25Barraba Post OfficeRecord low minimum temperature-5.2 C (22.6 F)1.2 C (2.2 F)5624 of 100 (Routine)
2023-05-27Katoomba (Murri St)Record low minimum temperature0.0 C (32.0 F)1.7 C (3.1 F)5828 of 100 (Routine)
2023-05-27Dunedoo Post OfficeRecord low minimum temperature-2.6 C (27.3 F)0.9 C (1.6 F)5623 of 100 (Routine)
2023-05-28Bankstown Airport AWSRecord low minimum temperature0.7 C (33.3 F)0.6 C (1.1 F)4630 of 100 (Routine)
2023-05-28University of Queensland GattoRecord low minimum temperature2.2 C (36.0 F)1.1 C (2.0 F)5725 of 100 (Routine)
2023-05-28Monto TownshipRecord low minimum temperature0.9 C (33.6 F)0.5 C (0.9 F)5624 of 100 (Routine)
2023-05-28Barraba Post OfficeRecord low minimum temperature-5.6 C (21.9 F)1.5 C (2.7 F)5624 of 100 (Routine)
2023-05-29MaryboroughRecord low minimum temperature1.9 C (35.4 F)0.3 C (0.5 F)6334 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 205 records the event counts. The counts above use the full total.

Download the Data

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 2026-10-12. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.