Pearce Raaf is a weather station located 40 m above sea level, 0 km from Pearce. Its records go back to 1938: 30 years of temperature are available up to 2025, along with rainfall and a comparison with two reference normals. Over the whole series (30 years) the annual mean temperature there is 18.9 °C; the 1961–1990 and 1991–2020 reference periods are not documented well enough for a comparison. The warmest year of the series is 2025 (20.5 °C) and the coldest 1944 (17.7 °C). The last complete year, 2025, ranks 1 out of 30, from warmest to coldest. Over 1961–2025, the annual mean temperature changes by +0.23 °C per decade. The station ranks 79 out of 227 stations, from the fastest rise to the slowest.
Annual mean temperature since 1938
The first ten years of the series (1944–2001) average 18.4 °C; the last ten (2015–2025) average 19.4 °C, a difference of +1.0 °C. All of the 10 warmest years in the series fall after 1999; the warmest is 2025 (20.5 °C). The ten-year running mean peaks at 19.4 °C (2025) and bottoms out at 19.0 °C (2014).
Annual rainfall since 1938
On average 662 mm of rain falls per year over the 26 documented years. The wettest year, 1945, received 985 mm; the driest, 2023, only 425 mm, which is 2.3 times less. Between 1944 and 2025, 10 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 | – | – | – | 4 mm | 12 mm | +8 mm |
| February | – | 25.7 °C | – | 12 mm | 11 mm | −1 mm |
| March | – | 23.8 °C | – | 14 mm | 17 mm | +3 mm |
| April | – | 20.2 °C | – | 36 mm | 23 mm | −13 mm |
| May | – | 16.7 °C | – | – | – | – |
| June | – | 14.4 °C | – | – | – | – |
| July | – | 13.1 °C | – | – | – | – |
| August | – | 13.5 °C | – | – | – | – |
| September | – | 14.7 °C | – | – | – | – |
| October | – | 17.3 °C | – | – | 30 mm | – |
| November | – | 20.6 °C | – | 21 mm | 18 mm | −3 mm |
| December | – | 23.2 °C | – | – | 9 mm | – |
Records at Pearce Raaf
- Warmest year: 20.5 °C, in 2025
- Coldest year: 17.7 °C, in 1944
- Driest year: 425 mm, in 2023
- Wettest year: 985 mm, in 1945
- Warmest month: 29.4 °C, in February 1985
- Coldest month: 11.3 °C, in July 1986
- Wettest month: 389 mm, in June 1945
- Hottest day: 46.1 °C, on 19 February 2024
- Coldest day: −2.9 °C, on 17 June 2006
- Heaviest rain in one day: 77.5 mm, on 10 June 1945
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 49.0 °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 79 out of 227.
The last 24 months against the 1991–2020 normal
Over the last 24 months (October 2024 to September 2026), 16 months out of 21 were warmer than the 1991–2020 normal for the same month; the mean departure is +0.7 °C. The highest departure was in December 2024 (+2.1 °C); the lowest, in April 2026 (−1.0 °C).
| Month | Temperature | Departure from normal | Rain | Normal rain |
|---|---|---|---|---|
| October 2024 | 18.6 °C | +1.3 °C | 60 mm | 30 mm |
| November 2024 | 21.2 °C | +0.6 °C | 13 mm | 18 mm |
| December 2024 | 25.3 °C | +2.1 °C | 4 mm | 9 mm |
| January 2025 | 27.6 °C | – | 3 mm | 12 mm |
| February 2025 | 25.6 °C | −0.1 °C | 0 mm | 11 mm |
| March 2025 | 25.6 °C | +1.8 °C | 27 mm | 17 mm |
| April 2025 | 21.2 °C | +1.0 °C | 15 mm | 23 mm |
| May 2025 | 18.6 °C | +1.9 °C | 36 mm | – |
| June 2025 | 15.3 °C | +0.9 °C | 102 mm | – |
| July 2025 | – | – | 142 mm | – |
| August 2025 | 14.1 °C | +0.6 °C | 193 mm | – |
| September 2025 | 15.1 °C | +0.4 °C | 83 mm | – |
| October 2025 | 16.6 °C | −0.7 °C | 43 mm | 30 mm |
| November 2025 | 21.3 °C | +0.7 °C | 13 mm | 18 mm |
| December 2025 | 24.9 °C | +1.7 °C | 14 mm | 9 mm |
| January 2026 | 25.9 °C | – | 2 mm | 12 mm |
| February 2026 | 26.0 °C | +0.3 °C | 6 mm | 11 mm |
| March 2026 | 25.0 °C | +1.2 °C | 39 mm | 17 mm |
| April 2026 | 19.2 °C | −1.0 °C | 21 mm | 23 mm |
| May 2026 | 15.9 °C | −0.8 °C | 22 mm | – |
| June 2026 | 13.9 °C | −0.5 °C | 106 mm | – |
| July 2026 | 13.8 °C | +0.7 °C | 45 mm | – |
| August 2026 | 14.1 °C | +0.6 °C | 89 mm | – |
| September 2026 | 16.7 °C | +2.0 °C | 22 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 Pearce Raaf 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 Pearce Raaf?
Over the whole series (30 years), the annual mean temperature at Pearce Raaf is 18.9 °C.
What is the warmest year ever measured at Pearce Raaf?
Since records began in 1938, the warmest year at Pearce Raaf is 2025, at 20.5 °C on average. The coldest is 1944 (17.7 °C).
Is the climate at Pearce Raaf getting warmer?
Yes: at Pearce Raaf, 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