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Monthly climate in Wallowa, Oregon, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Wallowa features a warm-summer Mediterranean climate (Csb). Temperatures typically range between -4 °C (26 °F) and 19 °C (66 °F) through the year, but rarely can drop to -23 °C (-9 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 949 mm (37.4 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually. Wallowa enjoys an average of 2981 hours of sunshine throughout the year, and daylight varies from 8 hours 44 minutes to 15 hours 37 minutes per day.

Monthly average temperatures in Wallowa, Oregon, United States §

The warmest months in Wallowa are June, July and August, with daily mean temperatures ranging from 13 to 19 °C (56 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -3 °C (26 - 27 °F) throughout the day. On average each year, Wallowa experiences 41 days above 25 °C (77.0 °F) and 174 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Wallowa, Oregon, United States. 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 6°C
(42°F)		 10°C
(50°F)		 14°C
(57°F)		 21°C
(70°F)		 27°C
(81°F)		 36°C
(98°F)		 35°C
(95°F)		 37°C
(98°F)		 33°C
(91°F)		 24°C
(75°F)		 15°C
(59°F)		 12°C
(54°F)
Mean maximum 4°C
(39°F)		 7°C
(45°F)		 11°C
(53°F)		 17°C
(62°F)		 23°C
(73°F)		 27°C
(80°F)		 33°C
(91°F)		 33°C
(92°F)		 30°C
(87°F)		 20°C
(67°F)		 12°C
(54°F)		 6°C
(43°F)
Average high -0°C
(32°F)		 0°C
(33°F)		 5°C
(41°F)		 8°C
(47°F)		 13°C
(56°F)		 19°C
(67°F)		 26°C
(80°F)		 26°C
(78°F)		 20°C
(68°F)		 11°C
(51°F)		 4°C
(40°F)		 -1°C
(31°F)
Daily mean -3°C
(27°F)		 -3°C
(26°F)		 1°C
(33°F)		 3°C
(38°F)		 8°C
(46°F)		 13°C
(56°F)		 19°C
(66°F)		 18°C
(65°F)		 13°C
(55°F)		 5°C
(41°F)		 -0°C
(32°F)		 -4°C
(26°F)
Average low -6°C
(21°F)		 -7°C
(20°F)		 -4°C
(26°F)		 -2°C
(29°F)		 2°C
(36°F)		 6°C
(43°F)		 10°C
(50°F)		 10°C
(51°F)		 6°C
(42°F)		 -0°C
(31°F)		 -4°C
(25°F)		 -7°C
(20°F)
Mean minimum -16°C
(3°F)		 -17°C
(2°F)		 -11°C
(13°F)		 -7°C
(19°F)		 -5°C
(23°F)		 -0°C
(31°F)		 4°C
(39°F)		 3°C
(38°F)		 -2°C
(28°F)		 -11°C
(13°F)		 -13°C
(9°F)		 -17°C
(2°F)
Minimum -23°C
(-9°F)		 -21°C
(-5°F)		 -14°C
(6°F)		 -10°C
(15°F)		 -6°C
(21°F)		 -2°C
(29°F)		 2°C
(35°F)		 1°C
(33°F)		 -4°C
(25°F)		 -18°C
(-1°F)		 -16°C
(3°F)		 -20°C
(-4°F)

Compare climate in Wallowa with other places

Compare temperature, precipitation, sunshine, UV index in Wallowa, Oregon, United States with other places around the world.

Monthly average precipitation in Wallowa, Oregon, United States §

Wallowa usually has the most precipitation in February, March and December, with an average of 17 rainy days and 118 mm (4.7 inches) of precipitation per month. The driest months in Wallowa are July, August and September. On average, 30 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Wallowa, Oregon, United States. 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) 90 (3.6) 147 (5.8) 107 (4.2) 93 (3.6) 93 (3.7) 60 (2.4) 11 (0.4) 34 (1.3) 45 (1.8) 79 (3.1) 90 (3.5) 101 (4.0)
Average precipitation days (≥ 1 mm) 14 20 16 14 14 11 4 7 7 12 14 17

Monthly sunshine hours in Wallowa, Oregon, United States §

The sunniest months in Wallowa are June, July and August, when the sun shines an average of 12 hours 5 minutes a day. Least sunny months in Wallowa: January, February and December receive an average of 4 hours 4 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Wallowa, Oregon, United States. 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 104 136 227 267 319 352 407 352 289 226 168 129
Mean daily daylight hours 9h 8m 10h 23m 11h 57m 13h 33m 14h 55m 15h 37m 15h 14m 14h 0m 12h 28m 10h 52m 9h 28m 8h 44m

Solar UV radiation in Wallowa, Oregon, United States §

Wallowa experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Wallowa UV Index data.

Average daily maximum UV levels by month for Wallowa, Oregon, United States. 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) 3 4 7 8 10 10 10 9 8 5 3 2

Detailed Monthly Weather Insights for Wallowa, Oregon, United States

Discover in-depth weather details for every month in Wallowa. 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 Wallowa'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.