Nyngan Airport is a weather station located 173 m above sea level, 2 km from Nyngan. Its records go back to 1879: 43 years of temperature are available up to 2018, along with rainfall and a comparison with two reference normals. Closed series: the records of this station end in 2018. Over the whole series (43 years) the annual mean temperature there is 19.0 °C; the 1961–1990 and 1991–2020 reference periods are not documented well enough for a comparison. The warmest year of the series is 2005 (20.7 °C) and the coldest 1976 (17.8 °C). The last complete year, 2009, ranks 1 out of 43, from warmest to coldest. Over 1961–2018, the annual mean temperature changes by +0.12 °C per decade. The station ranks 195 out of 227 stations, from the fastest rise to the slowest.
Annual mean temperature since 1879
The first ten years of the series (1959–1969) average 18.8 °C; the last ten (1998–2009) average 19.1 °C, a difference of +0.4 °C. Of the ten warmest years in the series, 3 fall after 1999. The warmest is 2005 (20.7 °C). The ten-year running mean peaks at 19.2 °C (2009) and bottoms out at 18.7 °C (1978).
Annual rainfall since 1879
On average 438 mm of rain falls per year over the 132 documented years. The wettest year, 1950, received 824 mm; the driest, 1965, only 169 mm, which is 4.9 times less. The 1991–2020 normal (457 mm per year) is 8 mm (1.7 %) below the 1961–1990 one (465 mm). Over 1991–2020, January is on average the wettest month (55 mm) and April the driest (24 mm). Between 1999 and 2018, 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 | 26.8 °C | 28.0 °C | +1.2 °C | 62 mm | 55 mm | −7 mm |
| February | 26.4 °C | 26.9 °C | +0.5 °C | 38 mm | 48 mm | +10 mm |
| March | 23.7 °C | 23.9 °C | +0.2 °C | 45 mm | 40 mm | −5 mm |
| April | 19.0 °C | 19.2 °C | +0.2 °C | 35 mm | 24 mm | −11 mm |
| May | 14.4 °C | 14.8 °C | +0.4 °C | 41 mm | 37 mm | −4 mm |
| June | 11.3 °C | 11.7 °C | +0.4 °C | 25 mm | 38 mm | +13 mm |
| July | 10.1 °C | 10.7 °C | +0.6 °C | 32 mm | 27 mm | −5 mm |
| August | 11.8 °C | 12.3 °C | +0.5 °C | 32 mm | 25 mm | −7 mm |
| September | 15.0 °C | 16.0 °C | +1.0 °C | 27 mm | 33 mm | +6 mm |
| October | 19.2 °C | – | – | 47 mm | 34 mm | −13 mm |
| November | 22.5 °C | 23.2 °C | +0.7 °C | 34 mm | 46 mm | +12 mm |
| December | 25.5 °C | – | – | 47 mm | 50 mm | +3 mm |
For rainfall, the largest difference is in June (+13 mm) and the smallest in October (−13 mm).
Records at Nyngan Airport
- Warmest year: 20.7 °C, in 2005
- Coldest year: 17.8 °C, in 1976
- Driest year: 169 mm, in 1965
- Wettest year: 824 mm, in 1950
- Warmest month: 33.4 °C, in January 2019
- Coldest month: 8.9 °C, in July 1968
- Wettest month: 297 mm, in February 1896
- Hottest day: 47.4 °C, on 11 February 2017
- Coldest day: −8.6 °C, on 19 June 2023
- Heaviest rain in one day: 193.2 mm, on 1 April 1989
2.9 °C separate the warmest year of the series from the coldest. Between the hottest and the coldest day on record, the range reaches 56.0 °C.
Temperature trend over 1961–2018
The regression line of annual mean temperature changes by +0.12 °C per decade between 1961 and 2018, about +0.7 °C over the whole period. That is slower than the median of the 227 stations (+0.19 °C per decade), by 0.07 °C per decade: the station ranks 195 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 Nyngan Airport 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 Nyngan Airport?
Over the whole series (43 years), the annual mean temperature at Nyngan Airport is 19.0 °C.
What is the warmest year ever measured at Nyngan Airport?
Since records began in 1879, the warmest year at Nyngan Airport is 2005, at 20.7 °C on average. The coldest is 1976 (17.8 °C).
Is the climate at Nyngan Airport getting warmer?
Yes: at Nyngan Airport, the annual mean temperature rises by 0.12 °C per decade between 1961 and 2018, +0.7 °C in total. 3 of the 10 warmest years in the series fall after 1999.
Towns near this station
Neighbouring stations