Monthly climate in Yamhill, Oregon, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Yamhill features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 4 °C (40 °F) and 20 °C (69 °F) through the year, but rarely can drop to -10 °C (14 °F) or can rise to as high as 44 °C (112 °F). The average annual precipitation amounts to about 1292 mm (50.9 inches) and receives 137 rainy days on the 1 mm (0.04 inches) threshold annually. Yamhill enjoys an average of 2688 hours of sunshine throughout the year, and daylight varies from 8 hours 46 minutes to 15 hours 34 minutes per day.

Monthly average temperatures in Yamhill, Oregon, United States §

The warmest months in Yamhill are July, August and September, with daily mean temperatures ranging from 17 to 20 °C (63 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 5 °C (40 - 41 °F) throughout the day. On average each year, Yamhill experiences 58 days above 25 °C (77.0 °F) and 37 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Yamhill, 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 14°C
(57°F)
16°C
(62°F)
22°C
(72°F)
27°C
(82°F)
31°C
(89°F)
44°C
(112°F)
36°C
(97°F)
40°C
(104°F)
36°C
(97°F)
26°C
(79°F)
17°C
(64°F)
15°C
(59°F)
Mean maximum 13°C
(55°F)
13°C
(57°F)
18°C
(66°F)
24°C
(75°F)
29°C
(84°F)
33°C
(92°F)
34°C
(94°F)
37°C
(99°F)
33°C
(91°F)
23°C
(73°F)
17°C
(62°F)
13°C
(56°F)
Average high 8°C
(47°F)
8°C
(47°F)
11°C
(53°F)
15°C
(59°F)
19°C
(66°F)
23°C
(73°F)
27°C
(80°F)
28°C
(82°F)
23°C
(74°F)
16°C
(62°F)
11°C
(52°F)
7°C
(46°F)
Daily mean 5°C
(41°F)
4°C
(40°F)
7°C
(45°F)
10°C
(50°F)
13°C
(56°F)
17°C
(62°F)
19°C
(67°F)
20°C
(69°F)
17°C
(63°F)
11°C
(52°F)
7°C
(46°F)
5°C
(40°F)
Average low 2°C
(36°F)
1°C
(35°F)
3°C
(38°F)
5°C
(41°F)
8°C
(47°F)
11°C
(52°F)
13°C
(55°F)
13°C
(57°F)
11°C
(53°F)
7°C
(44°F)
4°C
(40°F)
2°C
(36°F)
Mean minimum -4°C
(25°F)
-4°C
(24°F)
-2°C
(29°F)
-1°C
(31°F)
2°C
(37°F)
6°C
(42°F)
9°C
(49°F)
9°C
(48°F)
6°C
(42°F)
-0°C
(32°F)
-2°C
(28°F)
-5°C
(24°F)
Minimum -10°C
(14°F)
-6°C
(22°F)
-3°C
(26°F)
-2°C
(28°F)
2°C
(35°F)
5°C
(40°F)
7°C
(46°F)
8°C
(47°F)
4°C
(39°F)
-2°C
(28°F)
-5°C
(23°F)
-6°C
(21°F)

Compare climate in Yamhill with other places

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

Monthly average precipitation in Yamhill, Oregon, United States §

Yamhill usually has the most precipitation in January, February and December, with an average of 17 rainy days and 192 mm (7.6 inches) of precipitation per month. The driest months in Yamhill are June, July and August. On average, 19 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Yamhill, 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) 191 (7.5) 175 (6.9) 144 (5.7) 123 (4.8) 58 (2.3) 46 (1.8) 5 (0.2) 6 (0.3) 67 (2.7) 104 (4.1) 163 (6.4) 209 (8.2)
Average precipitation days (≥ 1 mm) 17 17 17 15 9 7 1 1 7 11 16 19

Monthly sunshine hours in Yamhill, Oregon, United States §

The sunniest months in Yamhill are June, July and August, when the sun shines an average of 11 hours 17 minutes a day. Least sunny months in Yamhill: January, February and December receive an average of 3 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Yamhill, 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 89 123 194 230 287 322 375 340 269 211 133 111
Mean daily daylight hours 9h 10m 10h 24m 11h 57m 13h 33m 14h 54m 15h 34m 15h 12m 13h 59m 12h 27m 10h 53m 9h 29m 8h 46m

Solar UV radiation in Yamhill, Oregon, United States §

Yamhill experiences the highest level of ultraviolet (UV) radiation in June, 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 Yamhill UV Index data.

Average daily maximum UV levels by month for Yamhill, 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 7 9 10 10 9 7 5 3 2

Detailed Monthly Weather Insights for Yamhill, Oregon, United States

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