nomadseason

Monthly climate in Irrigon, Oregon, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Irrigon features a cold semi-arid climate (BSk). Temperatures typically range between 2 °C (37 °F) and 27 °C (81 °F) through the year, but rarely can drop to -17 °C (1 °F) or can rise to as high as 48 °C (119 °F). The average annual precipitation amounts to about 227 mm (9.0 inches) and receives 54 rainy days on the 1 mm (0.04 inches) threshold annually. Irrigon enjoys an average of 3221 hours of sunshine throughout the year, and daylight varies from 8 hours 42 minutes to 15 hours 39 minutes per day.

Monthly average temperatures in Irrigon, Oregon, United States §

The warmest months in Irrigon are June, July and August, with daily mean temperatures ranging from 23 to 27 °C (74 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 3 °C (37 - 38 °F) throughout the day. On average each year, Irrigon experiences 109 days above 25 °C (77.0 °F) and 57 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Irrigon, 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 17°C
(63°F)		 20°C
(68°F)		 23°C
(73°F)		 33°C
(91°F)		 37°C
(98°F)		 48°C
(119°F)		 44°C
(111°F)		 43°C
(109°F)		 39°C
(103°F)		 32°C
(91°F)		 23°C
(75°F)		 20°C
(68°F)
Mean maximum 13°C
(56°F)		 16°C
(61°F)		 21°C
(70°F)		 28°C
(82°F)		 34°C
(94°F)		 38°C
(100°F)		 42°C
(107°F)		 42°C
(107°F)		 37°C
(99°F)		 27°C
(80°F)		 21°C
(70°F)		 17°C
(63°F)
Average high 6°C
(43°F)		 8°C
(47°F)		 14°C
(58°F)		 19°C
(67°F)		 26°C
(78°F)		 30°C
(87°F)		 35°C
(96°F)		 35°C
(94°F)		 28°C
(82°F)		 19°C
(66°F)		 11°C
(52°F)		 6°C
(43°F)
Daily mean 2°C
(37°F)		 3°C
(38°F)		 8°C
(47°F)		 13°C
(56°F)		 19°C
(66°F)		 23°C
(74°F)		 27°C
(81°F)		 27°C
(80°F)		 21°C
(69°F)		 13°C
(55°F)		 6°C
(44°F)		 3°C
(37°F)
Average low -0°C
(31°F)		 -1°C
(31°F)		 3°C
(38°F)		 7°C
(44°F)		 12°C
(53°F)		 15°C
(60°F)		 18°C
(65°F)		 18°C
(65°F)		 13°C
(56°F)		 7°C
(45°F)		 3°C
(37°F)		 0°C
(32°F)
Mean minimum -7°C
(19°F)		 -8°C
(17°F)		 -4°C
(26°F)		 1°C
(34°F)		 5°C
(41°F)		 9°C
(49°F)		 13°C
(55°F)		 11°C
(52°F)		 7°C
(44°F)		 -1°C
(30°F)		 -4°C
(26°F)		 -6°C
(22°F)
Minimum -17°C
(1°F)		 -11°C
(12°F)		 -12°C
(10°F)		 -2°C
(29°F)		 4°C
(39°F)		 9°C
(48°F)		 12°C
(54°F)		 10°C
(50°F)		 6°C
(42°F)		 -7°C
(19°F)		 -6°C
(21°F)		 -8°C
(18°F)

Compare climate in Irrigon with other places

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

Monthly average precipitation in Irrigon, Oregon, United States §

Irrigon usually has the most precipitation in January, February and December, with an average of 8 rainy days and 34 mm (1.3 inches) of precipitation per month. The driest months in Irrigon are June, July and August. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Irrigon, 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) 33 (1.3) 39 (1.5) 24 (0.9) 19 (0.7) 13 (0.5) 7 (0.3) 0 (0.0) 2 (0.1) 8 (0.3) 22 (0.9) 29 (1.1) 30 (1.2)
Average precipitation days (≥ 1 mm) 8 10 6 4 3 2 0 0 2 5 7 7

Monthly sunshine hours in Irrigon, Oregon, United States §

The sunniest months in Irrigon are June, July and August, when the sun shines an average of 12 hours 33 minutes a day. Least sunny months in Irrigon: January, February and December receive an average of 4 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Irrigon, 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 115 168 248 294 355 378 413 362 296 250 181 153
Mean daily daylight hours 9h 6m 10h 22m 11h 57m 13h 34m 14h 58m 15h 39m 15h 16m 14h 2m 12h 28m 10h 51m 9h 26m 8h 42m

Solar UV radiation in Irrigon, Oregon, United States §

Irrigon experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, February 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 Irrigon UV Index data.

Average daily maximum UV levels by month for Irrigon, 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) 2 3 5 6 9 9 10 9 7 5 3 2

Detailed Monthly Weather Insights for Irrigon, Oregon, United States

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