Geraldton is a weather station located 30 m above sea level, 9 km from Geraldton. Its records go back to 1907: 108 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 20.1 °C, noticeably higher than over 1961–1990 (19.4 °C): a difference of 0.7 °C. The warmest year of the series is 2024 (21.4 °C) and the coldest 1968 (18.1 °C). The last complete year, 2025, ranks 4 out of 108, from warmest to coldest. Over 1961–2025, the annual mean temperature changes by +0.23 °C per decade. The station ranks 80 out of 227 stations, from the fastest rise to the slowest.
Annual mean temperature since 1907
The first ten years of the series (1910–1920) average 19.0 °C; the last ten (2015–2025) average 20.4 °C, a difference of +1.4 °C. All of the 10 warmest years in the series fall after 1999; the warmest is 2024 (21.4 °C). The ten-year running mean peaks at 20.5 °C (2015) and bottoms out at 18.8 °C (1960).
Annual rainfall since 1907
On average 448 mm of rain falls per year over the 74 documented years. The wettest year, 1917, received 855 mm; the driest, 2019, only 87 mm, which is 9.8 times less. Over 1961–1990, June is on average the wettest month (106 mm) and December the driest (4 mm). Between 1969 and 2019, 8 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.
| Month | Temp. 1961–1990 | Temp. 1991–2020 | Difference | Rain 1961–1990 | Rain 1991–2020 | Difference |
|---|---|---|---|---|---|---|
| January | 24.8 °C | 25.1 °C | +0.3 °C | 5 mm | – | – |
| February | 25.8 °C | 26.1 °C | +0.3 °C | 13 mm | – | – |
| March | 24.4 °C | 24.8 °C | +0.4 °C | 14 mm | – | – |
| April | 21.0 °C | 22.0 °C | +1.0 °C | 26 mm | – | – |
| May | 18.1 °C | 18.9 °C | +0.8 °C | 68 mm | – | – |
| June | 15.7 °C | 16.2 °C | +0.5 °C | 106 mm | – | – |
| July | 14.2 °C | 14.7 °C | +0.5 °C | 83 mm | – | – |
| August | 14.3 °C | 14.7 °C | +0.4 °C | 60 mm | – | – |
| September | 15.2 °C | 15.7 °C | +0.5 °C | 28 mm | – | – |
| October | 17.2 °C | 18.2 °C | +1.0 °C | 18 mm | – | – |
| November | 19.8 °C | 21.0 °C | +1.2 °C | 10 mm | – | – |
| December | 22.3 °C | 23.5 °C | +1.2 °C | 4 mm | – | – |
The largest temperature change is in November (+1.2 °C) and the smallest in January (+0.3 °C); over the year the mean difference is +0.7 °C, and 12 months out of twelve are warmer than before.
Records at Geraldton
- Warmest year: 21.4 °C, in 2024
- Coldest year: 18.1 °C, in 1968
- Driest year: 87 mm, in 2019
- Wettest year: 855 mm, in 1917
- Warmest month: 29.7 °C, in February 2011
- Coldest month: 12.4 °C, in July 1957
- Wettest month: 328 mm, in May 1921
- Hottest day: 49.3 °C, on 18 February 2024
- Coldest day: −1.4 °C, on 16 July 1922
- Heaviest rain in one day: 93.7 mm, on 8 March 1934
3.3 °C separate the warmest year of the series from the coldest. Between the hottest and the coldest day on record, the range reaches 50.7 °C.
Temperature trend over 1961–2025
The regression line of annual mean temperature changes by +0.23 °C per decade between 1961 and 2025, about +1.5 °C over the whole period. That is faster than the median of the 227 stations (+0.19 °C per decade), by 0.04 °C per decade: the station ranks 80 out of 227.
The last 24 months against the 1991–2020 normal
Over the last 20 months (October 2024 to September 2026), 12 months out of 15 were warmer than the 1991–2020 normal for the same month; the mean departure is +0.9 °C. The highest departure was in January 2025 (+2.3 °C); the lowest, in July 2025 (−1.0 °C).
| Month | Temperature | Departure from normal | Rain | Normal rain |
|---|---|---|---|---|
| October 2024 | 19.3 °C | +1.1 °C | – | – |
| November 2024 | 21.8 °C | +0.8 °C | 12 mm | – |
| December 2024 | 25.3 °C | +1.8 °C | 5 mm | – |
| January 2025 | 27.4 °C | +2.3 °C | 4 mm | – |
| February 2025 | 25.7 °C | −0.4 °C | 2 mm | – |
| March 2025 | 26.4 °C | +1.6 °C | 2 mm | – |
| April 2025 | 23.5 °C | +1.5 °C | 4 mm | – |
| May 2025 | 20.7 °C | +1.8 °C | – | – |
| June 2025 | 17.2 °C | +1.0 °C | – | – |
| July 2025 | 13.7 °C | −1.0 °C | – | – |
| August 2025 | 15.0 °C | +0.3 °C | – | – |
| September 2025 | 15.8 °C | +0.1 °C | – | – |
| October 2025 | 17.4 °C | −0.8 °C | – | – |
| November 2025 | 22.3 °C | +1.3 °C | 24 mm | – |
| December 2025 | 25.0 °C | +1.5 °C | 0 mm | – |
| January 2026 | – | – | 3 mm | – |
| February 2026 | – | – | 14 mm | – |
| May 2026 | – | – | 50 mm | – |
| June 2026 | – | – | 123 mm | – |
| September 2026 | – | – | 7 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 Geraldton 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 Geraldton?
Over 1991–2020, the annual mean temperature at Geraldton is 20.1 °C. It was 19.4 °C over 1961–1990, a difference of +0.7 °C.
What is the warmest year ever measured at Geraldton?
Since records began in 1907, the warmest year at Geraldton is 2024, at 21.4 °C on average. The coldest is 1968 (18.1 °C).
Is the climate at Geraldton getting warmer?
Yes: at Geraldton, the annual mean temperature rises by 0.23 °C per decade between 1961 and 2025, +1.5 °C in total. 10 of the 10 warmest years in the series fall after 1999.
Towns near this station
Neighbouring stations