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December Weather in Hillston, Australia

Last updated: August 22, 2025

In December, the average temperature in Hillston, Australia hovers around 25°C (78°F), offering a pleasant climate for exploration. However, prepare for fluctuations: temperatures can dip to a minimum of 9°C (48°F) and peak at a scorching 45°C (113°F). Precipitation is relatively low, with about 24 mm (0.9 in) scattered over 4 days, while average humidity stands at a comfortable 53%.

December Temperature in Hillston

In December in Hillston, the average temperature is 25°C (78°F). Maximum temperatures can reach 45°C (113°F), while the minimum can drop as low as 9°C (48°F). Be sure to pack layers and stay hydrated while exploring the diverse weather in Hillston during this time!

December Weather in Hillston: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Hillston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hillston, December typically has an average temperature of 25°C (78°F), with highs reaching up to 45°C (113°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec837873655549495058657278
Data source: Temperature data for Hillston generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Hillston

In Hillston in December, the precipitation amount is 24 mm (0.9 in) over a period of 4 days.

December Precipitation Trends in Hillston

The chart displays monthly precipitation patterns in Hillston, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Hillston, December typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec282040342632182319424324
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hillston

In Hillston in December humidity is 53%. With an average temperature of 25°C (78°F), this humidity feels like a warm embrace, making travel comfortable yet inviting a gentle breeze to keep you refreshed as you explore.

December Average Humidity in Hillston

This chart illustrates the average monthly humidity levels in Hillston, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Hillston is approximately 53%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec38%46%61%67%75%74%77%70%68%53%48%53%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hillston

In Hillston in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Hillston.

Maximum UV Index Levels in Hillston for December

The chart shows the monthly maximum UV Index (UVI) for Hillston in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Hillston typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412854468111315
Data source: Hillston December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Hillston Compares to Other Months

Weather in Hillston varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hillston, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Hillston, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (83°F)28 mm (1.1 inches)38%extreme
February Weather25°C (78°F)20 mm (0.8 inches)46%extreme
March Weather23°C (74°F)40 mm (1.6 inches)61%extreme
April Weather18°C (65°F)34 mm (1.3 inches)67%very high
May Weather13°C (55°F)26 mm (1.0 inches)75%moderate
June Weather10°C (50°F)32 mm (1.3 inches)74%moderate
July Weather10°C (49°F)18 mm (0.7 inches)77%moderate
August Weather10°C (51°F)23 mm (0.9 inches)70%high
September Weather14°C (58°F)19 mm (0.7 inches)68%very high
October Weather18°C (65°F)42 mm (1.6 inches)53%extreme
November Weather22°C (72°F)43 mm (1.7 inches)48%extreme
December Weather25°C (78°F)24 mm (0.9 inches)53%extreme

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