Karijini North (Wittenoom) is a weather station located 474 m above sea level. Its records go back to 1959: 61 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 26.4 °C, clearly higher than over 1961–1990 (25.6 °C): a difference of 0.8 °C. The warmest year of the series is 2019 (28.2 °C) and the coldest 1966 (24.3 °C). The last complete year, 2025, ranks 2 out of 61, from warmest to coldest. Over 1961–2025, the annual mean temperature changes by +0.26 °C per decade. The station ranks 44 out of 227 stations, from the fastest rise to the slowest.
Annual mean temperature since 1959
The first ten years of the series (1959–1968) average 25.5 °C; the last ten (2013–2025) average 26.9 °C, a difference of +1.4 °C. Of the ten warmest years in the series, 7 fall after 1999. The warmest is 2019 (28.2 °C). The ten-year running mean peaks at 26.9 °C (2025) and bottoms out at 25.3 °C (1971).
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 | 32.4 °C | 33.1 °C | +0.7 °C | – | – | – |
| February | 29.8 °C | 30.5 °C | +0.7 °C | – | – | – |
| March | 30.0 °C | 30.6 °C | +0.6 °C | – | – | – |
| April | 26.8 °C | 27.3 °C | +0.5 °C | – | – | – |
| May | 21.0 °C | 21.9 °C | +0.9 °C | – | – | – |
| June | 18.6 °C | 18.8 °C | +0.2 °C | – | – | – |
| July | 17.1 °C | 18.1 °C | +1.0 °C | – | – | – |
| August | 19.3 °C | 20.0 °C | +0.7 °C | – | – | – |
| September | 23.5 °C | 24.2 °C | +0.7 °C | – | – | – |
| October | 27.2 °C | 28.7 °C | +1.5 °C | – | – | – |
| November | 30.2 °C | 31.2 °C | +1.0 °C | – | – | – |
| December | 31.4 °C | 32.2 °C | +0.8 °C | – | – | – |
The largest temperature change is in October (+1.5 °C) and the smallest in June (+0.2 °C); over the year the mean difference is +0.8 °C, and 12 months out of twelve are warmer than before.
Records at Karijini North (Wittenoom)
- Warmest year: 28.2 °C, in 2019
- Coldest year: 24.3 °C, in 1966
- Warmest month: 35.8 °C, in January 2005
- Coldest month: 14.8 °C, in July 1968
- Hottest day: 49.0 °C, on 2 January 1998
- Coldest day: 0.5 °C, on 12 July 1968
3.9 °C separate the warmest year of the series from the coldest. Between the hottest and the coldest day on record, the range reaches 48.5 °C.
Temperature trend over 1961–2025
The regression line of annual mean temperature changes by +0.26 °C per decade between 1961 and 2025, about +1.7 °C over the whole period. That is faster than the median of the 227 stations (+0.19 °C per decade), by 0.07 °C per decade: the station ranks 44 out of 227.
The last 24 months against the 1991–2020 normal
Over the last 23 months (February 2024 to December 2025), 19 months out of 23 were warmer than the 1991–2020 normal for the same month; the mean departure is +1.4 °C. The highest departure was in February 2024 (+5.2 °C); the lowest, in July 2025 (−0.5 °C).
| Month | Temperature | Departure from normal | Rain | Normal rain |
|---|---|---|---|---|
| February 2024 | 35.7 °C | +5.2 °C | – | – |
| March 2024 | 30.3 °C | −0.3 °C | – | – |
| April 2024 | 27.7 °C | +0.4 °C | – | – |
| May 2024 | 23.7 °C | +1.8 °C | – | – |
| June 2024 | 19.9 °C | +1.1 °C | – | – |
| July 2024 | 18.7 °C | +0.6 °C | – | – |
| August 2024 | 22.1 °C | +2.1 °C | – | – |
| September 2024 | 26.0 °C | +1.8 °C | – | – |
| October 2024 | 29.9 °C | +1.2 °C | – | – |
| November 2024 | 32.7 °C | +1.5 °C | – | – |
| December 2024 | 33.2 °C | +1.0 °C | – | – |
| January 2025 | 32.7 °C | −0.4 °C | – | – |
| February 2025 | 33.1 °C | +2.6 °C | – | – |
| March 2025 | 33.3 °C | +2.7 °C | – | – |
| April 2025 | 29.0 °C | +1.7 °C | – | – |
| May 2025 | 22.9 °C | +1.0 °C | – | – |
| June 2025 | 19.3 °C | +0.5 °C | – | – |
| July 2025 | 17.6 °C | −0.5 °C | – | – |
| August 2025 | 21.4 °C | +1.4 °C | – | – |
| September 2025 | 25.2 °C | +1.0 °C | – | – |
| October 2025 | 31.4 °C | +2.7 °C | – | – |
| November 2025 | 31.1 °C | −0.1 °C | – | – |
| December 2025 | 34.6 °C | +2.4 °C | – | – |
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 Karijini North (Wittenoom) 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 Karijini North (Wittenoom)?
Over 1991–2020, the annual mean temperature at Karijini North (Wittenoom) is 26.4 °C. It was 25.6 °C over 1961–1990, a difference of +0.8 °C.
What is the warmest year ever measured at Karijini North (Wittenoom)?
Since records began in 1959, the warmest year at Karijini North (Wittenoom) is 2019, at 28.2 °C on average. The coldest is 1966 (24.3 °C).
Is the climate at Karijini North (Wittenoom) getting warmer?
Yes: at Karijini North (Wittenoom), the annual mean temperature rises by 0.26 °C per decade between 1961 and 2025, +1.7 °C in total. 7 of the 10 warmest years in the series fall after 1999.
Neighbouring stations