Roebourne is a weather station located 12 m above sea level, 12 km from Wickham. Its records go back to 1907: 52 years of temperature are available up to 2014, along with rainfall and a comparison with two reference normals. Closed series: the records of this station end in 2014. Over 1991–2020 the annual mean temperature there is 27.8 °C, noticeably higher than over 1961–1990 (27.3 °C): a difference of 0.4 °C. The warmest year of the series is 1996 (29.1 °C) and the coldest 1966 (26.1 °C). The last complete year, 2014, ranks 19 out of 52, from warmest to coldest. Over 1961–2014, the annual mean temperature changes by +0.15 °C per decade. The station ranks 169 out of 227 stations, from the fastest rise to the slowest.
Annual mean temperature since 1907
The first ten years of the series (1957–1966) average 27.1 °C; the last ten (2004–2014) average 27.6 °C, a difference of +0.6 °C. Of the ten warmest years in the series, 3 fall after 1999. The warmest is 1996 (29.1 °C). The ten-year running mean peaks at 28.0 °C (1999) and bottoms out at 26.9 °C (1971).
Annual rainfall since 1907
On average 310 mm of rain falls per year over the 105 documented years. The wettest year, 1934, received 833 mm; the driest, 1924, only 9 mm, which is 92.6 times less. The 1991–2020 normal (308 mm per year) is 6 mm (1.9 %) below the 1961–1990 one (314 mm). Over 1991–2020, February is on average the wettest month (82 mm) and October the driest (1 mm). Between 1995 and 2014, 11 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 | 32.5 °C | 32.9 °C | +0.4 °C | 68 mm | 60 mm | −8 mm |
| February | 32.1 °C | 32.4 °C | +0.3 °C | 72 mm | 82 mm | +10 mm |
| March | 31.6 °C | 31.9 °C | +0.3 °C | 48 mm | 53 mm | +5 mm |
| April | 29.0 °C | 29.6 °C | +0.6 °C | 24 mm | 21 mm | −3 mm |
| May | 24.4 °C | 25.0 °C | +0.6 °C | 31 mm | 21 mm | −10 mm |
| June | 21.4 °C | 21.6 °C | +0.2 °C | 38 mm | 37 mm | −1 mm |
| July | 20.3 °C | 20.9 °C | +0.6 °C | 14 mm | 10 mm | −4 mm |
| August | 21.8 °C | 22.5 °C | +0.7 °C | 6 mm | 4 mm | −2 mm |
| September | 24.8 °C | 25.1 °C | +0.3 °C | 1 mm | 2 mm | +1 mm |
| October | 27.9 °C | 28.8 °C | +0.9 °C | 1 mm | 1 mm | 0 mm |
| November | 30.3 °C | 30.4 °C | +0.1 °C | 1 mm | 2 mm | +1 mm |
| December | 32.1 °C | 32.2 °C | +0.1 °C | 10 mm | 15 mm | +5 mm |
The largest temperature change is in October (+0.9 °C) and the smallest in November (+0.1 °C); over the year the mean difference is +0.4 °C, and 12 months out of twelve are warmer than before. For rainfall, the largest difference is in February (+10 mm) and the smallest in May (−10 mm).
Records at Roebourne
- Warmest year: 29.1 °C, in 1996
- Coldest year: 26.1 °C, in 1966
- Driest year: 9 mm, in 1924
- Wettest year: 833 mm, in 1934
- Warmest month: 34.8 °C, in February 1998
- Coldest month: 18.4 °C, in July 1958
- Wettest month: 408 mm, in March 1934
- Hottest day: 49.4 °C, on 21 December 2011
- Coldest day: 4.4 °C, on 6 July 1964
- Heaviest rain in one day: 233.7 mm, on 7 March 1945
3.0 °C separate the warmest year of the series from the coldest. Between the hottest and the coldest day on record, the range reaches 45.0 °C.
Temperature trend over 1961–2014
The regression line of annual mean temperature changes by +0.15 °C per decade between 1961 and 2014, about +0.8 °C over the whole period. That is slower than the median of the 227 stations (+0.19 °C per decade), by 0.04 °C per decade: the station ranks 169 out of 227.
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 Roebourne 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 Roebourne?
Over 1991–2020, the annual mean temperature at Roebourne is 27.8 °C. It was 27.3 °C over 1961–1990, a difference of +0.4 °C.
What is the warmest year ever measured at Roebourne?
Since records began in 1907, the warmest year at Roebourne is 1996, at 29.1 °C on average. The coldest is 1966 (26.1 °C).
Is the climate at Roebourne getting warmer?
Yes: at Roebourne, the annual mean temperature rises by 0.15 °C per decade between 1961 and 2014, +0.8 °C in total. 3 of the 10 warmest years in the series fall after 1999.
Towns near this station
Neighbouring stations