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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, 21 to 23 September 2026

Cold outbreak in Australia, 21 to 23 September 2026: 26 records at 24 stations, peak on 22 September 2026. Closed.

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

Key Facts

  • Cold outbreak in Australia, 21 to 23 September 2026 set or tied 26 station records at 24 stations.
  • It ran from 21 September 2026 to 23 September 2026 (3 days) and its peak day was 22 September 2026.
  • Status: closed.
  • Mildura Airport set a daily record low minimum temperature of 1.9 C (35.4 F) on 22 September 2026 (provisional).
  • The busiest day was 22 September 2026 with 19 records.
  • The oldest broken record in the ranked list had stood for 56 years.

Footprint

21 to 23 September 2026
Footprint of Cold outbreak in Australia, 21 to 23 September 2026 The area covered by Cold outbreak in Australia, 21 to 23 September 2026 is outlined, with 19 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in Australia, 21 to 23 September 2026 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, 21 to 23 September 2026: stations that set records in the event
StationTypeValueDate
Mildura AirportRecord low minimum temperature1.9 C (35.4 F)2026-09-22
Melbourne AirportRecord low minimum temperature1.5 C (34.7 F)2026-09-22
Portland (Cashmore Airport)Record low minimum temperature0.7 C (33.3 F)2026-09-22
King Island AirportRecord low minimum temperature0.3 C (32.5 F)2026-09-23
Hamilton AirportRecord low minimum temperature0.0 C (32.0 F)2026-09-22
Mortlake RacecourseRecord low minimum temperature-1.0 C (30.2 F)2026-09-23
Braidwood Racecourse AWSRecord low maximum temperature11.2 C (52.2 F)2026-09-22
Cape Nelson LighthouseRecord low minimum temperature3.7 C (38.7 F)2026-09-22
Port Fairy AWSRecord low minimum temperature3.8 C (38.8 F)2026-09-23
StrathbogieRecord low minimum temperature-3.0 C (26.6 F)2026-09-23
GelantipyRecord low maximum temperature6.7 C (44.1 F)2026-09-21
Mount Gambier AeroRecord low minimum temperature-0.3 C (31.5 F)2026-09-22
Badgerys Creek AWSRecord low maximum temperature17.2 C (63.0 F)2026-09-22
Mount Crawford (Mt Crawford AwRecord low minimum temperature2.4 C (36.3 F)2026-09-22
Mount LoftyRecord low minimum temperature2.4 C (36.3 F)2026-09-22
Mangrove Mountain AWSRecord low maximum temperature14.5 C (58.1 F)2026-09-22
Penrith Lakes AWSRecord low maximum temperature17.7 C (63.9 F)2026-09-22
LongerenongRecord low minimum temperature-1.5 C (29.3 F)2026-09-22
Moorabbin AirportRecord low minimum temperature2.7 C (36.9 F)2026-09-22
ColdstreamRecord low minimum temperature-0.5 C (31.1 F)2026-09-22
SheoaksRecord low minimum temperature-0.9 C (30.4 F)2026-09-22
KeithRecord low minimum temperature1.1 C (34.0 F)2026-09-22
CoonawarraRecord low minimum temperature0.0 C (32.0 F)2026-09-22

Records per Day

Peak day 19
Records per day during Cold outbreak in Australia, 21 to 23 September 2026 Records set or tied each day from 21 September 2026 to 23 September 2026. The most in one day was 19 on 22 September 2026. 0 5 10 15 20 09-2109-2209-23
Records set or tied each day from 21 September 2026 to 23 September 2026. The most in one day was 19 on 22 September 2026.
Records per day during Cold outbreak in Australia, 21 to 23 September 2026
DateRecords
2026-09-211
2026-09-2219
2026-09-236

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in Australia, 21 to 23 September 2026 ranked by margin
King Island Airport, 09-232.6 C (4.7 F)
Portland (Cashmore Airport), 09-222.0 C (3.6 F)
Braidwood Racecourse AWS, 09-221.8 C (3.2 F)
Cape Nelson Lighthouse, 09-221.7 C (3.1 F)
Mount Crawford (Mt Crawford Aw, 09-221.7 C (3.1 F)
Mortlake Racecourse, 09-231.6 C (2.9 F)
Port Fairy AWS, 09-231.5 C (2.7 F)
Strathbogie, 09-231.4 C (2.5 F)
Melbourne Airport, 09-221.3 C (2.3 F)
Mount Gambier Aero, 09-221.1 C (2.0 F)
Mount Lofty, 09-221.0 C (1.8 F)
Port Fairy AWS, 09-220.9 C (1.6 F)
Longerenong, 09-220.8 C (1.4 F)
Hamilton Airport, 09-220.4 C (0.7 F)
Gelantipy, 09-210.4 C (0.7 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, 21 to 23 September 2026 26 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 15 30 45 60 0.00.81.52.33.0 Margin (C) Years the old record stood
26 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, 21 to 23 September 2026
Margin (C)Years the old record stood
0.356
1.352
2.040
2.624
0.440
1.628
1.819
1.419
1.517
1.77
0.432
1.13
0.228
0.919
1.79
1.09
0.419
0.219
0.83
0.112
1.38
0.912
0.41
0.112
0.89
0.33

Compared With Other Events

Station records per event
Station records in Cold outbreak in Australia, 21 to 23 September 2026 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, 21 to 23 September 2026 (this event)26 records

Every Record Set

26 of 26
Every record set or tied during Cold outbreak in Australia, 21 to 23 September 2026, in date order
DateStationRecordValueMarginYears stoodSignificance
2026-09-21GelantipyRecord low maximum temperature (provisional)6.7 C (44.1 F)0.4 C (0.7 F)3212 of 100 (Routine)
2026-09-22Mildura AirportRecord low minimum temperature (provisional)1.9 C (35.4 F)0.3 C (0.5 F)5625 of 100 (Routine)
2026-09-22Melbourne AirportRecord low minimum temperature (provisional)1.5 C (34.7 F)1.3 C (2.3 F)5224 of 100 (Routine)
2026-09-22Portland (Cashmore Airport)Record low minimum temperature (provisional)0.7 C (33.3 F)2.0 C (3.6 F)4023 of 100 (Routine)
2026-09-22Hamilton AirportRecord low minimum temperature (provisional)0.0 C (32.0 F)0.4 C (0.7 F)4017 of 100 (Routine)
2026-09-22Braidwood Racecourse AWSRecord low maximum temperature (provisional)11.2 C (52.2 F)1.8 C (3.2 F)1913 of 100 (Routine)
2026-09-22Cape Nelson LighthouseRecord low minimum temperature (provisional)3.7 C (38.7 F)1.7 C (3.1 F)713 of 100 (Routine)
2026-09-22Mount Gambier AeroRecord low minimum temperature (provisional)-0.3 C (31.5 F)1.1 C (2.0 F)311 of 100 (Routine)
2026-09-22Badgerys Creek AWSRecord low maximum temperature (provisional)17.2 C (63.0 F)0.2 C (0.4 F)2811 of 100 (Routine)
2026-09-22Port Fairy AWSRecord low minimum temperature (provisional)2.8 C (37.0 F)0.9 C (1.6 F)1911 of 100 (Routine)
2026-09-22Mount Crawford (Mt Crawford AwRecord low minimum temperature (provisional)2.4 C (36.3 F)1.7 C (3.1 F)910 of 100 (Routine)
2026-09-22Mount LoftyRecord low minimum temperature (provisional)2.4 C (36.3 F)1.0 C (1.8 F)98 of 100 (Routine)
2026-09-22Mangrove Mountain AWSRecord low maximum temperature (provisional)14.5 C (58.1 F)0.4 C (0.7 F)198 of 100 (Routine)
2026-09-22Penrith Lakes AWSRecord low maximum temperature (provisional)17.7 C (63.9 F)0.2 C (0.4 F)198 of 100 (Routine)
2026-09-22LongerenongRecord low minimum temperature (provisional)-1.5 C (29.3 F)0.8 C (1.4 F)38 of 100 (Routine)
2026-09-22Moorabbin AirportRecord low minimum temperature (provisional)2.7 C (36.9 F)0.1 C (0.2 F)128 of 100 (Routine)
2026-09-22ColdstreamRecord low minimum temperature (provisional)-0.5 C (31.1 F)1.3 C (2.3 F)88 of 100 (Routine)
2026-09-22SheoaksRecord low minimum temperature (provisional)-0.9 C (30.4 F)0.9 C (1.6 F)128 of 100 (Routine)
2026-09-22KeithRecord low minimum temperature (provisional)1.1 C (34.0 F)0.4 C (0.7 F)17 of 100 (Routine)
2026-09-22CoonawarraRecord low minimum temperature (provisional)0.0 C (32.0 F)0.1 C (0.2 F)127 of 100 (Routine)
2026-09-23King Island AirportRecord low minimum temperature (provisional)0.3 C (32.5 F)2.6 C (4.7 F)2420 of 100 (Routine)
2026-09-23Mortlake RacecourseRecord low minimum temperature (provisional)-1.0 C (30.2 F)1.6 C (2.9 F)2815 of 100 (Routine)
2026-09-23StrathbogieRecord low minimum temperature (provisional)-3.0 C (26.6 F)1.4 C (2.5 F)1913 of 100 (Routine)
2026-09-23Port Fairy AWSRecord low minimum temperature (provisional)3.8 C (38.8 F)1.5 C (2.7 F)1713 of 100 (Routine)
2026-09-23SheoaksRecord low minimum temperature (provisional)0.4 C (32.7 F)0.3 C (0.5 F)33 of 100 (Routine)
2026-09-23CoonawarraRecord low minimum temperature (tie) (provisional)1.1 C (34.0 F)tie91 of 100 (Routine)

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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.