Tumbarumba Post Office is a weather station located 655 m above sea level, 0 km from Tumbarumba. Its records go back to 1886: 27 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 13.0 °C; the 1961–1990 period is not documented well enough to compare. The warmest year of the series is 2007 (13.9 °C) and the coldest 1966 (11.4 °C). The last complete year, 2018, ranks 4 out of 27, from warmest to coldest. Over 1961–2025, the annual mean temperature changes by +0.29 °C per decade. The station ranks 24 out of 227 stations, from the fastest rise to the slowest.
Annual mean temperature since 1886
The first ten years of the series (1966–2000) average 12.3 °C; the last ten (2008–2018) average 13.2 °C, a difference of +0.9 °C. Of the ten warmest years in the series, 9 fall after 1999. The warmest is 2007 (13.9 °C). The ten-year running mean peaks at 13.3 °C (2015) and bottoms out at 12.4 °C (2001).
Annual rainfall since 1886
On average 945 mm of rain falls per year over the 109 documented years. The wettest year, 1917, received 1579 mm; the driest, 1967, only 421 mm, which is 3.8 times less. Over 1991–2020, August is on average the wettest month (103 mm) and March the driest (56 mm). Between 2006 and 2025, 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 | – | 21.4 °C | – | – | 64 mm | – |
| February | – | 20.5 °C | – | 41 mm | 59 mm | +18 mm |
| March | – | 17.2 °C | – | 51 mm | 56 mm | +5 mm |
| April | – | 12.6 °C | – | – | 56 mm | – |
| May | – | 8.9 °C | – | – | 70 mm | – |
| June | – | 6.2 °C | – | – | 94 mm | – |
| July | – | 5.6 °C | – | – | 97 mm | – |
| August | – | 6.7 °C | – | – | 103 mm | – |
| September | – | 9.5 °C | – | – | 86 mm | – |
| October | – | 12.8 °C | – | – | 76 mm | – |
| November | – | 16.0 °C | – | 64 mm | 90 mm | +26 mm |
| December | – | 18.6 °C | – | 49 mm | 74 mm | +25 mm |
Records at Tumbarumba Post Office
- Warmest year: 13.9 °C, in 2007
- Coldest year: 11.4 °C, in 1966
- Driest year: 421 mm, in 1967
- Wettest year: 1579 mm, in 1917
- Warmest month: 26.0 °C, in January 2019
- Coldest month: 3.8 °C, in July 1966
- Wettest month: 322 mm, in June 1923
- Hottest day: 43.0 °C, on 28 January 2026
- Coldest day: −10.4 °C, on 22 June 1989
- Heaviest rain in one day: 164.6 mm, on 16 March 1966
2.5 °C separate the warmest year of the series from the coldest. Between the hottest and the coldest day on record, the range reaches 53.4 °C.
Temperature trend over 1961–2025
The regression line of annual mean temperature changes by +0.29 °C per decade between 1961 and 2025, about +1.9 °C over the whole period. That is faster than the median of the 227 stations (+0.19 °C per decade), by 0.10 °C per decade: the station ranks 24 out of 227.
The last 24 months against the 1991–2020 normal
Over the last 24 months (October 2024 to September 2026), 14 months out of 17 were warmer than the 1991–2020 normal for the same month; the mean departure is +1.3 °C. The highest departure was in March 2025 (+3.2 °C); the lowest, in June 2025 (−1.0 °C). The last twelve months add up to 974 mm of rain, which is 105 % of the 1991–2020 annual normal (925 mm).
| Month | Temperature | Departure from normal | Rain | Normal rain |
|---|---|---|---|---|
| October 2024 | – | – | 47 mm | 76 mm |
| November 2024 | – | – | 105 mm | 90 mm |
| December 2024 | 20.9 °C | +2.3 °C | 82 mm | 74 mm |
| January 2025 | – | – | 55 mm | 64 mm |
| February 2025 | – | – | 75 mm | 59 mm |
| March 2025 | 20.4 °C | +3.2 °C | 49 mm | 56 mm |
| April 2025 | 15.2 °C | +2.6 °C | 6 mm | 56 mm |
| May 2025 | 10.0 °C | +1.1 °C | 47 mm | 70 mm |
| June 2025 | 5.2 °C | −1.0 °C | 135 mm | 94 mm |
| July 2025 | 6.1 °C | +0.5 °C | 130 mm | 97 mm |
| August 2025 | 7.8 °C | +1.1 °C | 62 mm | 103 mm |
| September 2025 | 10.0 °C | +0.5 °C | 47 mm | 86 mm |
| October 2025 | 13.4 °C | +0.6 °C | 29 mm | 76 mm |
| November 2025 | 15.7 °C | −0.3 °C | 65 mm | 90 mm |
| December 2025 | 18.5 °C | −0.1 °C | 88 mm | 74 mm |
| January 2026 | 23.4 °C | +2.0 °C | 8 mm | 64 mm |
| February 2026 | 22.1 °C | +1.6 °C | 60 mm | 59 mm |
| March 2026 | 18.6 °C | +1.4 °C | 158 mm | 56 mm |
| April 2026 | – | – | 33 mm | 56 mm |
| May 2026 | 10.8 °C | +1.9 °C | 89 mm | 70 mm |
| June 2026 | 8.8 °C | +2.6 °C | 122 mm | 94 mm |
| July 2026 | – | – | 135 mm | 97 mm |
| August 2026 | 8.8 °C | +2.1 °C | 137 mm | 103 mm |
| September 2026 | – | – | 50 mm | 86 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 Tumbarumba Post Office 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 Tumbarumba Post Office?
Over 1991–2020, the annual mean temperature at Tumbarumba Post Office is 13.0 °C.
What is the warmest year ever measured at Tumbarumba Post Office?
Since records began in 1886, the warmest year at Tumbarumba Post Office is 2007, at 13.9 °C on average. The coldest is 1966 (11.4 °C).
Is the climate at Tumbarumba Post Office getting warmer?
Yes: at Tumbarumba Post Office, the annual mean temperature rises by 0.29 °C per decade between 1961 and 2025, +1.9 °C in total. 9 of the 10 warmest years in the series fall after 1999.
Towns near this station
Neighbouring stations