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Broome: weather history since 1910

Broome is a weather station located 7 m above sea level, 1 km from Broome. Its records go back to 1910: 114 years of temperature are available up to 2025, along with rainfall and a comparison with two reference normals. Over 1991–2020 the annual mean temperature there is 27.1 °C, barely higher than over 1961–1990 (26.8 °C): a difference of 0.3 °C. The warmest year of the series is 2016 (28.4 °C) and the coldest 1976 (25.6 °C). The last complete year, 2025, ranks 23 out of 114, from warmest to coldest. Over 1961–2025, the annual mean temperature changes by +0.13 °C per decade. The station ranks 188 out of 227 stations, from the fastest rise to the slowest.

Annual mean temperature since 1910

2526272829
191019201930194019501960197019801990200020102025
Mean temperature of the year   10-year running mean   1961–1990 normal (26.8 °C)   1991–2020 normal (27.1 °C)

The first ten years of the series (1910–1919) average 26.5 °C; the last ten (2016–2025) average 27.5 °C, a difference of +1.0 °C. Of the ten warmest years in the series, 3 fall after 1999. The warmest is 2016 (28.4 °C). The ten-year running mean peaks at 27.5 °C (2024) and bottoms out at 26.4 °C (1920).

Annual rainfall since 1910

0500100015002000
191019201930194019501960197019801990200020102025
Rainfall of the year   Series average (638 mm)

On average 638 mm of rain falls per year over the 83 documented years. The wettest year, 2018, received 1599 mm; the driest, 1992, only 132 mm, which is 12.1 times less. The 1991–2020 normal (747 mm per year) is 152 mm (25.5 %) above the 1961–1990 one (595 mm). Over 1991–2020, January is on average the wettest month (229 mm) and September the driest (1 mm). Between 2006 and 2025, 14 years out of 20 exceeded the series average.

Monthly normals: 1961–1990 against 1991–2020

The table compares, month by month, the mean temperature and the rainfall total of two thirty-year reference periods. The difference column shows what the recent period changes compared with the earlier one.

Monthly temperature and rainfall normals, 1961–1990 and 1991–2020
MonthTemp. 1961–1990Temp. 1991–2020DifferenceRain 1961–1990Rain 1991–2020Difference
January29.9 °C30.0 °C+0.1 °C204 mm229 mm+25 mm
February29.6 °C29.6 °C0.0 °C163 mm217 mm+54 mm
March29.9 °C30.0 °C+0.1 °C105 mm105 mm0 mm
April28.4 °C28.9 °C+0.5 °C19 mm28 mm+9 mm
May25.0 °C25.2 °C+0.2 °C24 mm24 mm0 mm
June22.3 °C22.6 °C+0.3 °C16 mm18 mm+2 mm
July21.2 °C21.9 °C+0.7 °C2 mm9 mm+7 mm
August22.5 °C22.7 °C+0.2 °C2 mm2 mm0 mm
September25.2 °C25.4 °C+0.2 °C1 mm1 mm0 mm
October27.9 °C28.3 °C+0.4 °C2 mm1 mm−1 mm
November29.5 °C30.0 °C+0.5 °C9 mm11 mm+2 mm
December30.3 °C30.4 °C+0.1 °C48 mm102 mm+54 mm

The largest temperature change is in July (+0.7 °C) and the smallest in February (0.0 °C); over the year the mean difference is +0.3 °C, and 11 months out of twelve are warmer than before. For rainfall, the largest difference is in February (+54 mm) and the smallest in October (−1 mm).

Records at Broome

  • Warmest year: 28.4 °C, in 2016
  • Coldest year: 25.6 °C, in 1976
  • Driest year: 132 mm, in 1992
  • Wettest year: 1599 mm, in 2018
  • Warmest month: 32.5 °C, in December 2019
  • Coldest month: 18.9 °C, in July 1950
  • Wettest month: 945 mm, in January 2018
  • Hottest day: 44.6 °C, on 23 November 2019
  • Coldest day: 4.4 °C, on 21 July 1965
  • Heaviest rain in one day: 476.6 mm, on 30 January 1997

2.8 °C separate the warmest year of the series from the coldest. Between the hottest and the coldest day on record, the range reaches 40.2 °C.

Temperature trend over 1961–2025

The regression line of annual mean temperature changes by +0.13 °C per decade between 1961 and 2025, about +0.8 °C over the whole period. That is slower than the median of the 227 stations (+0.19 °C per decade), by 0.06 °C per decade: the station ranks 188 out of 227.

The last 24 months against the 1991–2020 normal

−2−1012
October 2024September 2026
Warmer than the 1991–2020 normal   Cooler than the 1991–2020 normal

Over the last 24 months (October 2024 to September 2026), 10 months out of 15 were warmer than the 1991–2020 normal for the same month; the mean departure is +0.4 °C. The highest departure was in October 2024 (+1.7 °C); the lowest, in July 2025 (−1.3 °C). The last twelve months add up to 947 mm of rain, which is 127 % of the 1991–2020 annual normal (747 mm).

Temperature and rainfall of recent months, compared with the 1991–2020 normals
MonthTemperatureDeparture from normalRainNormal rain
October 202430.0 °C+1.7 °C10 mm1 mm
November 202431.6 °C+1.6 °C16 mm11 mm
December 202431.5 °C+1.1 °C170 mm102 mm
January 202529.9 °C−0.1 °C311 mm229 mm
February 202530.0 °C+0.4 °C112 mm217 mm
March 202530.8 °C+0.8 °C67 mm105 mm
April 202529.2 °C+0.3 °C29 mm28 mm
May 202525.0 °C−0.2 °C127 mm24 mm
June 202522.1 °C−0.5 °C0 mm18 mm
July 202520.6 °C−1.3 °C5 mm9 mm
August 202523.7 °C+1.0 °C1 mm2 mm
September 202525.7 °C+0.3 °C0 mm1 mm
October 202528.9 °C+0.6 °C0 mm1 mm
November 202530.0 °C0.0 °C1 mm11 mm
December 202530.7 °C+0.3 °C71 mm102 mm
January 2026––233 mm229 mm
February 2026––462 mm217 mm
March 2026––172 mm105 mm
April 2026––2 mm28 mm
May 2026––5 mm24 mm
June 2026––0 mm18 mm
July 2026––0 mm9 mm
August 2026––0 mm2 mm
September 2026––1 mm1 mm

Data source and licence

Data source: Bureau of Meteorology (ACORN-SAT) and NOAA NCEI (GHCN-Daily) (dataset “ACORN-SAT v2 daily (homogenised) + GHCN-Daily”), licence CC BY 4.0; Public domain (NOAA NCEI). Last updated: 29 October 2026.

The data for Broome are shown as the source publishes them; this site does not correct them. A year is kept only if at least eleven months of measurements are available, and a normal is computed only with at least twenty years of data out of its thirty. Temperatures are rounded to 0.1 °C and rainfall to the millimetre. The station is one of 227 stations in Australia: the overview page lets you compare them.

Frequently asked questions

What is the annual mean temperature at Broome?

Over 1991–2020, the annual mean temperature at Broome is 27.1 °C. It was 26.8 °C over 1961–1990, a difference of +0.3 °C.

What is the warmest year ever measured at Broome?

Since records began in 1910, the warmest year at Broome is 2016, at 28.4 °C on average. The coldest is 1976 (25.6 °C).

Is the climate at Broome getting warmer?

Yes: at Broome, the annual mean temperature rises by 0.13 °C per decade between 1961 and 2025, +0.8 °C in total. 3 of the 10 warmest years in the series fall after 1999.

Towns near this station

Neighbouring stations

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