December is one of the warmer months of the year in Parkes, with average highs near 31.5°C and lows around 15.9°C (mean 23.7°C). It is about average for rainfall, averaging 57 mm of rainfall and 45% relative humidity across the period.
December is one of the warmer months of the year in Parkes. Across 45 years of records, the warmest December in Parkes was 2019 — when the month averaged 26.9°C — while the coldest was 2010 at 20.3°C. Typical December days reach 31.5°C with nights near 15.9°C. The long-term trend is warming, about 0.2°C per decade.
December is about average for rainfall in Parkes, averaging 57 mm of rainfall. The wettest December on record was 2010 with 179 mm, while the driest was 2019 at 5 mm.
Relative humidity in Parkes during December averages 45%. The most humid December was 2010 at 72%, and the least humid was 2019 at 27%.
December receives about 7.8 kWh/m²/day of solar energy in Parkes. The sunniest December was 1994 at 8.6 kWh/m²/day, and the cloudiest was 1992 at 6.7.
Average wind speed in Parkes during December is 3 m/s. The windiest December was 1986 at 3.3 m/s, while the calmest were 2021 and 2024 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.3°C | 23.3°C | 24.0°C | 24.3°C | 23.5°C | +0.2°C |
| Avg High | 31.2°C | 31.1°C | 32.0°C | 32.0°C | 31.1°C | -0.1°C |
| Avg Low | 15.4°C | 15.6°C | 16.0°C | 16.6°C | 15.9°C | +0.5°C |
| Avg Rain | 54 mm | 60 mm | 53 mm | 61 mm | 59 mm | +5 mm |
December temperatures in Parkes have risen by about 0.4°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 5.8°C (2022) to a record high of 45.2°C (2019).
Rainfall in December is about average for rainfall, averaging 57 mm, with a wettest year of 179 mm.
One of the best times to visit Parkes
December is one of the best times to visit Parkes. Expect days averaging 31.5°C and nights around 15.9°C (mean 23.7°C) — warmer than Parkes's yearly average — with moderate rainfall (57 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 32.9°C | 24.5°C | 16.0°C | 40.8°C | 6.1°C | 36 mm | 37% | 3 m/s | — |
| 2024 | 31.9°C | 24.5°C | 17.2°C | 37.5°C | 9.9°C | 78 mm | 51% | 2.5 m/s | 8.3 |
| 2023 | 32.9°C | 25.4°C | 17.8°C | 42.3°C | 14.1°C | 118 mm | 50% | 2.8 m/s | 7.7 |
| 2022 | 28.0°C | 20.6°C | 13.2°C | 36.1°C | 5.8°C | 27 mm | 54% | 2.7 m/s | 7.9 |
| 2021 | 30.0°C | 22.8°C | 15.7°C | 35.4°C | 8.5°C | 39 mm | 58% | 2.5 m/s | 7.9 |
| 2020 | 30.6°C | 23.1°C | 15.5°C | 42.4°C | 9.0°C | 53 mm | 48% | 3.1 m/s | 7.5 |
| 2019 🔥 | 35.8°C | 26.9°C | 18.0°C | 45.2°C | 8.2°C | 5 mm | 27% | 3.1 m/s | 8.4 |
| 2018 | 34.3°C | 26.0°C | 17.7°C | 43.8°C | 9.8°C | 24 mm | 41% | 2.9 m/s | 8 |
| 2017 | 32.9°C | 25.1°C | 17.4°C | 41.9°C | 10.1°C | 67 mm | 49% | 2.9 m/s | 7.4 |
| 2016 | 33.1°C | 25.4°C | 17.8°C | 38.0°C | 9.6°C | 68 mm | 47% | 3.1 m/s | 7.3 |
| 2015 | 32.1°C | 24.3°C | 16.5°C | 39.3°C | 10.5°C | 42 mm | 43% | 3.1 m/s | 7.7 |
| 2014 | 31.8°C | 24.4°C | 17.0°C | 39.0°C | 11.6°C | 85 mm | 50% | 3 m/s | 7.5 |
| 2013 | 32.9°C | 24.5°C | 16.0°C | 41.1°C | 7.4°C | 36 mm | 36% | 2.9 m/s | 8.2 |
| 2012 | 33.5°C | 25.4°C | 17.4°C | 39.7°C | 9.5°C | 12 mm | 35% | 3 m/s | 8 |
| 2011 | 27.2°C | 20.5°C | 13.8°C | 33.0°C | 8.3°C | 87 mm | 61% | 2.6 m/s | 7.4 |
| 2010 ❄️ 🌧️ | 26.3°C | 20.3°C | 14.3°C | 35.0°C | 6.5°C | 179 mm | 72% | 2.8 m/s | 7.2 |
| 2009 | 32.6°C | 24.6°C | 16.7°C | 41.3°C | 10.6°C | 105 mm | 43% | 3 m/s | 7.7 |
| 2008 | 30.3°C | 22.7°C | 15.1°C | 35.2°C | 10.1°C | 48 mm | 47% | 3 m/s | 7.7 |
| 2007 | 29.5°C | 22.5°C | 15.5°C | 35.8°C | 9.5°C | 128 mm | 60% | 2.8 m/s | 7.2 |
| 2006 | 33.0°C | 25.0°C | 17.0°C | 38.4°C | 6.7°C | 30 mm | 36% | 2.9 m/s | 7.5 |
| 2005 | 32.8°C | 24.0°C | 15.2°C | 41.8°C | 10.3°C | 32 mm | 41% | 3 m/s | 8.5 |
| 2004 | 30.4°C | 22.7°C | 14.9°C | 38.4°C | 8.1°C | 92 mm | 52% | 3.1 m/s | 7.8 |
| 2003 | 33.8°C | 25.7°C | 17.6°C | 39.9°C | 10.2°C | 42 mm | 44% | 2.8 m/s | 7.7 |
| 2002 | 33.0°C | 25.0°C | 16.9°C | 41.3°C | 8.2°C | 29 mm | 37% | 3.1 m/s | 7.5 |
| 2001 | 31.9°C | 23.6°C | 15.4°C | 41.0°C | 10.3°C | 16 mm | 32% | 2.9 m/s | 7.5 |
| 2000 | 32.6°C | 24.3°C | 16.0°C | 38.8°C | 9.7°C | 13 mm | 43% | 2.6 m/s | 8.4 |
| 1999 | 28.3°C | 21.3°C | 14.3°C | 35.4°C | 9.2°C | 112 mm | 54% | 3.1 m/s | 7.4 |
| 1998 | 32.1°C | 23.9°C | 15.8°C | 37.3°C | 10.0°C | 29 mm | 45% | 2.8 m/s | 8.1 |
| 1997 | 34.5°C | 26.3°C | 18.1°C | 40.3°C | 13.8°C | 42 mm | 36% | 2.9 m/s | 8.2 |
| 1996 | 30.9°C | 22.8°C | 14.7°C | 38.0°C | 8.7°C | 66 mm | 44% | 3.2 m/s | 7.8 |
| 1995 | 29.8°C | 21.8°C | 13.8°C | 39.2°C | 7.2°C | 26 mm | 47% | 3.1 m/s | 8 |
| 1994 | 34.0°C | 25.4°C | 16.8°C | 41.7°C | 8.3°C | 44 mm | 40% | 3 m/s | 8.6 |
| 1993 | 29.9°C | 22.3°C | 14.7°C | 38.7°C | 8.4°C | 26 mm | 48% | 3.2 m/s | 7.3 |
| 1992 | 26.9°C | 20.8°C | 14.6°C | 33.4°C | 7.4°C | 158 mm | 65% | 2.8 m/s | 6.7 |
| 1991 | 29.4°C | 22.1°C | 14.7°C | 39.6°C | 8.1°C | 85 mm | 48% | 3.1 m/s | 7.2 |
| 1990 | 35.2°C | 26.7°C | 18.1°C | 43.0°C | 9.9°C | 12 mm | 34% | 3.1 m/s | 8.3 |
| 1989 | 32.5°C | 24.3°C | 16.1°C | 39.5°C | 10.2°C | 32 mm | 38% | 3.1 m/s | 8.2 |
| 1988 | 30.9°C | 23.9°C | 16.8°C | 36.8°C | 10.3°C | 138 mm | 57% | 3.2 m/s | 7.5 |
| 1987 | 32.3°C | 24.0°C | 15.7°C | 40.2°C | 6.4°C | 70 mm | 42% | 3.1 m/s | 7.4 |
| 1986 | 30.0°C | 21.8°C | 13.6°C | 38.2°C | 7.4°C | 28 mm | 41% | 3.3 m/s | 8.2 |
| 1985 | 29.0°C | 21.6°C | 14.2°C | 37.5°C | 8.6°C | 65 mm | 52% | 3.1 m/s | 7.6 |
| 1984 | 31.2°C | 22.9°C | 14.6°C | 39.9°C | 8.6°C | 20 mm | 35% | 3.2 m/s | 8.3 |
| 1983 | 29.6°C | 22.3°C | 15.0°C | 39.3°C | 7.2°C | 91 mm | 56% | 3 m/s | — |
| 1982 | 33.6°C | 25.6°C | 17.5°C | 39.6°C | 10.2°C | 13 mm | 31% | 3 m/s | — |
| 1981 | 32.1°C | 23.7°C | 15.4°C | 38.4°C | 10.1°C | 26 mm | 39% | 2.8 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 31.5°C with lows near 15.9°C (mean 23.7°C), based on 45 years of NASA POWER data.
December averages 57 mm of rainfall in Parkes, about average for rainfall. The wettest on record was 179 mm in 2010.
The hottest December reached 45.2°C in 2019. The coldest dipped to 5.8°C in 2022.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.4°C. Daytime highs moved from 31.1°C to 31.1°C and overnight lows from 15.3°C to 16°C over the same span.
December is one of the warmer months of the year in Parkes and about average for rainfall, so plan for around 31.5°C daytime highs and 15.9°C at night.
Not quite — December is the 10th coolest month in Parkes, averaging 23.7°C.
For December in Parkes, pack light, breathable clothing and sun protection, with typical highs of 31.5°C and lows of 15.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 45% — relatively dry.
Average wind speed in December is 3 m/s. The windiest December on record averaged 3.3 m/s (1986).
The wettest December on record was 2010 with 179 mm. On average, December sees 57 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Parkes behaves each December, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for December specifically, along with year-by-year records and how the month has changed over the decades.
