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Monthly climate in Hillston, Australia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Hillston features a cold semi-arid climate (BSk). Temperatures typically range between 10 °C (49 °F) and 28 °C (83 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 46 °C (115 °F). The average annual precipitation amounts to about 348 mm (13.7 inches) and receives 46 rainy days on the 1 mm (0.04 inches) threshold annually. Hillston enjoys an average of 3481 hours of sunshine throughout the year, and daylight varies from 9 hours 57 minutes to 14 hours 18 minutes per day.

Monthly average temperatures in Hillston, Australia

The warmest months in Hillston are January, February and December, with daily mean temperatures ranging from 25 to 28 °C (78 - 83 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 10 to 10 °C (49 - 51 °F) throughout the day. On average each year, Hillston experiences 162 days above 25 °C (77.0 °F) and 5 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hillston. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum46°C
(115°F)		46°C
(115°F)		39°C
(102°F)		38°C
(100°F)		29°C
(84°F)		23°C
(74°F)		25°C
(77°F)		27°C
(80°F)		38°C
(101°F)		37°C
(98°F)		43°C
(109°F)		45°C
(113°F)
Mean maximum43°C
(110°F)		41°C
(106°F)		37°C
(99°F)		32°C
(89°F)		26°C
(78°F)		19°C
(67°F)		21°C
(71°F)		25°C
(77°F)		32°C
(89°F)		33°C
(92°F)		38°C
(102°F)		42°C
(108°F)
Average high35°C
(96°F)		32°C
(90°F)		30°C
(86°F)		25°C
(77°F)		19°C
(67°F)		16°C
(61°F)		16°C
(60°F)		17°C
(62°F)		22°C
(71°F)		26°C
(78°F)		29°C
(84°F)		33°C
(91°F)
Daily mean28°C
(83°F)		25°C
(78°F)		23°C
(74°F)		18°C
(65°F)		13°C
(55°F)		10°C
(50°F)		10°C
(49°F)		10°C
(51°F)		14°C
(58°F)		18°C
(65°F)		22°C
(72°F)		25°C
(78°F)
Average low21°C
(70°F)		19°C
(66°F)		17°C
(62°F)		12°C
(53°F)		7°C
(46°F)		5°C
(41°F)		4°C
(40°F)		4°C
(40°F)		7°C
(45°F)		11°C
(53°F)		15°C
(59°F)		18°C
(64°F)
Mean minimum14°C
(57°F)		11°C
(53°F)		9°C
(49°F)		6°C
(43°F)		2°C
(35°F)		-0°C
(32°F)		-1°C
(31°F)		-2°C
(29°F)		1°C
(34°F)		4°C
(40°F)		6°C
(44°F)		10°C
(50°F)
Minimum12°C
(54°F)		9°C
(48°F)		8°C
(46°F)		2°C
(36°F)		-2°C
(28°F)		-2°C
(29°F)		-3°C
(27°F)		-2°C
(28°F)		-1°C
(30°F)		3°C
(38°F)		4°C
(40°F)		9°C
(48°F)

Compare climate in Hillston with other places

Compare temperature, precipitation, sunshine, UV index in Hillston, Australia with other places around the world.

Monthly average precipitation in Hillston, Australia

Hillston usually has the most precipitation in March, October and November, with an average of 5 rainy days and 42 mm (1.6 inches) of precipitation per month. The driest months in Hillston are February, July and September. On average, 19 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hillston. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)28 (1.1)20 (0.8)40 (1.6)34 (1.3)26 (1.0)32 (1.3)18 (0.7)23 (0.9)19 (0.7)42 (1.6)43 (1.7)24 (0.9)
Average precipitation days (≥ 1 mm)323246442664

Monthly sunshine hours in Hillston, Australia

The sunniest months in Hillston are October, November and December, when the sun shines an average of 11 hours 7 minutes a day. Least sunny months in Hillston: May, June and July receive an average of 7 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hillston. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours296316308274255223241255287317332373
Mean daily daylight hours14h 4m13h 16m12h 15m11h 13m10h 22m9h 57m10h 9m10h 54m11h 52m12h 55m13h 50m14h 18m

Solar UV radiation in Hillston, Australia

Hillston experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Hillston UV Index data.

Average daily maximum UV levels by month for Hillston. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151412854468111315