Weather Records by Month: Australia

Record highs in Australia were most often set in September and record lows in May, with the count by month and record type for all years and for 1996 to 2025.

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

Key Facts

September had the most record highs in Australia in all years: 27,411 of 302,675 (9.1%).
May had the most record lows in Australia in all years: 15,907 of 179,835 (8.8%).
September had the most record highs in Australia in 1996 to 2025: 18,306 of 198,273 (9.2%).
May had the most record lows in Australia in 1996 to 2025: 10,477 of 103,464 (10.1%).
Counts are daily maximum and daily minimum temperature records combined, and are not adjusted for the different lengths of the months.

All Years

Records by month and type

Count of daily temperature records in Australia by calendar month and record type, all years. All years: record highs peak in September and record lows in May. Darker cells are the larger counts within a record type.

Daily temperature records by month and type, all years, Australia
Record type	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Total
Record high maximum temperature	13,568	11,489	12,707	12,286	12,985	11,990	13,190	13,915	14,570	13,691	11,547	11,783	153,721
Record low maximum temperature	7,893	8,237	7,885	7,657	7,179	7,369	6,354	6,771	5,766	7,044	8,025	8,154	88,334
Record high minimum temperature	13,613	11,487	12,573	11,252	12,192	11,901	12,506	12,619	12,841	12,643	12,572	12,755	148,954
Record low minimum temperature	7,110	7,458	7,583	8,210	8,728	7,735	7,085	8,603	7,221	7,368	6,958	7,442	91,501

Latest 30 Years

1996 to 2025

Count of daily temperature records in Australia by calendar month and record type, 1996 to 2025. 1996 to 2025: record highs peak in September and record lows in May. Darker cells are the larger counts within a record type.

Daily temperature records by month and type, 1996 to 2025, Australia
Record type	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Total
Record high maximum temperature	9,067	8,056	8,707	8,540	8,747	7,828	8,053	9,172	9,959	9,575	8,088	8,410	104,202
Record low maximum temperature	4,260	4,529	4,263	4,219	4,200	4,108	3,448	3,387	2,719	3,873	4,237	4,228	47,471
Record high minimum temperature	9,062	7,497	8,154	6,739	6,711	6,920	7,491	7,946	8,347	8,315	8,523	8,366	94,071
Record low minimum temperature	3,927	4,502	4,165	4,846	6,277	5,105	4,542	5,331	4,227	4,526	4,116	4,429	55,993

Highs and Lows by Month

Record highs and record lows by calendar month, all years and 1996 to 2025, Australia
Month	Highs, all years	Lows, all years	Highs, 1996 to 2025	Lows, 1996 to 2025
January	27,181	15,003	18,129	8,187
February	22,976	15,695	15,553	9,031
March	25,280	15,468	16,861	8,428
April	23,538	15,867	15,279	9,065
May	25,177	15,907	15,458	10,477
June	23,891	15,104	14,748	9,213
July	25,696	13,439	15,544	7,990
August	26,534	15,374	17,118	8,718
September	27,411	12,987	18,306	6,946
October	26,334	14,412	17,890	8,399
November	24,119	14,983	16,611	8,353
December	24,538	15,596	16,776	8,657

What the Counts Mean

Each count is a daily temperature record in that calendar month: a daily maximum or daily minimum that went past the earlier record at that station for the same day of the year. Record highs combine the daily maximum and the daily minimum.

Months differ in length, so a month with more days has more chances for a record. The counts are not adjusted for that. The latest 30 years are 1996 to 2025. The two spans come from different numbers of stations and years, so compare the shape across months and not the totals.

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 2026-10-17. Records are computed by this site from daily maximum and minimum temperature.