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Monthly climate in Walla Walla, New South Wales, Australia

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Walla Walla features a humid subtropical climate (Cfa). Temperatures typically range between 8 °C (46 °F) and 25 °C (77 °F) through the year, but rarely can drop to -4 °C (25 °F) or can rise to as high as 44 °C (111 °F). The average annual precipitation amounts to about 636 mm (25.0 inches) and receives 81 rainy days on the 1 mm (0.04 inches) threshold annually. Walla Walla enjoys an average of 3314 hours of sunshine throughout the year, and daylight varies from 9 hours 45 minutes to 14 hours 30 minutes per day.

Monthly average temperatures in Walla Walla, New South Wales, Australia §

The warmest months in Walla Walla are January, February and December, with daily mean temperatures ranging from 22 to 25 °C (72 - 77 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 8 to 8 °C (46 - 47 °F) throughout the day. On average each year, Walla Walla experiences 118 days above 25 °C (77.0 °F) and 11 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Walla Walla, New South Wales, Australia. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 43°C
(111°F)		 44°C
(111°F)		 36°C
(98°F)		 34°C
(94°F)		 27°C
(81°F)		 18°C
(65°F)		 19°C
(66°F)		 20°C
(69°F)		 28°C
(82°F)		 32°C
(90°F)		 39°C
(103°F)		 42°C
(107°F)
Mean maximum 40°C
(104°F)		 38°C
(100°F)		 33°C
(92°F)		 28°C
(83°F)		 23°C
(74°F)		 16°C
(61°F)		 17°C
(63°F)		 19°C
(66°F)		 24°C
(76°F)		 28°C
(82°F)		 34°C
(94°F)		 38°C
(100°F)
Average high 32°C
(90°F)		 29°C
(85°F)		 27°C
(81°F)		 22°C
(72°F)		 17°C
(62°F)		 13°C
(56°F)		 12°C
(55°F)		 13°C
(56°F)		 17°C
(63°F)		 21°C
(71°F)		 25°C
(77°F)		 29°C
(84°F)
Daily mean 25°C
(77°F)		 23°C
(73°F)		 21°C
(69°F)		 16°C
(61°F)		 11°C
(52°F)		 8°C
(46°F)		 8°C
(46°F)		 8°C
(47°F)		 11°C
(52°F)		 15°C
(59°F)		 18°C
(65°F)		 22°C
(72°F)
Average low 18°C
(65°F)		 16°C
(61°F)		 14°C
(58°F)		 10°C
(50°F)		 6°C
(43°F)		 3°C
(38°F)		 4°C
(39°F)		 4°C
(39°F)		 5°C
(41°F)		 9°C
(48°F)		 12°C
(54°F)		 15°C
(59°F)
Mean minimum 11°C
(52°F)		 9°C
(49°F)		 8°C
(47°F)		 5°C
(41°F)		 1°C
(35°F)		 -1°C
(30°F)		 -2°C
(29°F)		 -2°C
(28°F)		 -1°C
(31°F)		 2°C
(37°F)		 4°C
(40°F)		 8°C
(47°F)
Minimum 10°C
(49°F)		 7°C
(44°F)		 6°C
(43°F)		 1°C
(34°F)		 -1°C
(30°F)		 -3°C
(27°F)		 -4°C
(25°F)		 -3°C
(26°F)		 -2°C
(29°F)		 1°C
(34°F)		 3°C
(38°F)		 6°C
(44°F)

Compare climate in Walla Walla with other places

Compare temperature, precipitation, sunshine, UV index in Walla Walla, New South Wales, Australia with other places around the world.

Monthly average precipitation in Walla Walla, New South Wales, Australia §

Walla Walla usually has the most precipitation in July, October and November, with an average of 9 rainy days and 69 mm (2.7 inches) of precipitation per month. The driest months in Walla Walla are January, February and April. On average, 36 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Walla Walla, New South Wales, Australia. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 36 (1.4) 28 (1.1) 55 (2.2) 44 (1.7) 53 (2.1) 55 (2.2) 62 (2.5) 62 (2.4) 45 (1.8) 63 (2.5) 82 (3.2) 49 (1.9)
Average precipitation days (≥ 1 mm) 4 3 6 3 7 7 11 10 8 8 8 6

Monthly sunshine hours in Walla Walla, New South Wales, Australia §

The sunniest months in Walla Walla are October, November and December, when the sun shines an average of 10 hours 49 minutes a day. Least sunny months in Walla Walla: June, July and August receive an average of 7 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Walla Walla, New South Wales, Australia. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 292 309 306 260 232 205 212 231 267 314 317 363
Mean daily daylight hours 14h 15m 13h 22m 12h 16m 11h 9m 10h 13m 9h 45m 9h 59m 10h 47m 11h 51m 12h 59m 13h 59m 14h 30m

Solar UV radiation in Walla Walla, New South Wales, Australia §

Walla Walla experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 13 - 14, 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 Walla Walla UV Index data.

Average daily maximum UV levels by month for Walla Walla, New South Wales, Australia. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 14 13 12 8 5 3 3 5 7 10 12 14

Detailed Monthly Weather Insights for Walla Walla, New South Wales, Australia

Discover in-depth weather details for every month in Walla Walla. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Walla Walla's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.