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Monthly climate in Silverton, Oregon, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Silverton features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 5 °C (41 °F) and 21 °C (70 °F) through the year, but rarely can drop to -11 °C (12 °F) or can rise to as high as 46 °C (115 °F).The average annual precipitation amounts to about 1498 mm (59.0 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually.Silverton enjoys an average of 2755 hours of sunshine throughout the year, and daylight varies from 8 hours 48 minutes to 15 hours 33 minutes per day.

Monthly average temperatures in Silverton, Oregon, United States §

The warmest months in Silverton are July, August and September, with daily mean temperatures ranging from 17 to 21 °C (63 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 5 °C (41 - 42 °F) throughout the day. On average each year, Silverton experiences 64 days above 25 °C (77.0 °F) and 34 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Silverton, 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 15°C
(59°F)		 18°C
(65°F)		 23°C
(73°F)		 28°C
(82°F)		 31°C
(88°F)		 46°C
(115°F)		 38°C
(100°F)		 41°C
(106°F)		 35°C
(95°F)		 27°C
(81°F)		 20°C
(68°F)		 17°C
(63°F)
Mean maximum 14°C
(57°F)		 14°C
(58°F)		 19°C
(66°F)		 24°C
(76°F)		 28°C
(83°F)		 34°C
(93°F)		 35°C
(95°F)		 38°C
(101°F)		 33°C
(91°F)		 23°C
(74°F)		 18°C
(64°F)		 14°C
(58°F)
Average high 9°C
(48°F)		 9°C
(48°F)		 12°C
(54°F)		 15°C
(60°F)		 19°C
(67°F)		 23°C
(74°F)		 28°C
(83°F)		 29°C
(84°F)		 24°C
(75°F)		 17°C
(62°F)		 12°C
(53°F)		 8°C
(47°F)
Daily mean 5°C
(42°F)		 5°C
(41°F)		 7°C
(45°F)		 10°C
(50°F)		 14°C
(57°F)		 17°C
(63°F)		 21°C
(69°F)		 21°C
(70°F)		 17°C
(63°F)		 11°C
(53°F)		 8°C
(46°F)		 5°C
(41°F)
Average low 3°C
(37°F)		 1°C
(35°F)		 3°C
(38°F)		 5°C
(41°F)		 8°C
(47°F)		 11°C
(52°F)		 13°C
(56°F)		 14°C
(57°F)		 11°C
(53°F)		 6°C
(44°F)		 4°C
(40°F)		 2°C
(36°F)
Mean minimum -5°C
(23°F)		 -5°C
(22°F)		 -2°C
(28°F)		 -1°C
(31°F)		 3°C
(37°F)		 6°C
(43°F)		 9°C
(49°F)		 8°C
(47°F)		 5°C
(42°F)		 -0°C
(32°F)		 -2°C
(28°F)		 -4°C
(25°F)
Minimum -11°C
(12°F)		 -9°C
(17°F)		 -5°C
(23°F)		 -2°C
(29°F)		 2°C
(36°F)		 5°C
(41°F)		 8°C
(47°F)		 7°C
(46°F)		 4°C
(39°F)		 -3°C
(28°F)		 -4°C
(24°F)		 -5°C
(22°F)

Compare climate in Silverton with other places

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

Monthly average precipitation in Silverton, Oregon, United States §

Silverton usually has the most precipitation in January, February and December, with an average of 19 rainy days and 211 mm (8.3 inches) of precipitation per month.The driest months in Silverton are June, July and August. On average, 24 mm (1.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Silverton, 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) 185 (7.3) 225 (8.8) 161 (6.3) 149 (5.9) 71 (2.8) 60 (2.4) 5 (0.2) 7 (0.3) 90 (3.5) 140 (5.5) 181 (7.1) 224 (8.8)
Average precipitation days (≥ 1 mm) 17 20 18 16 11 9 1 2 7 13 16 20

Monthly sunshine hours in Silverton, Oregon, United States §

The sunniest months in Silverton are June, July and August, when the sun shines an average of 11 hours 33 minutes a day.Least sunny months in Silverton: January, February and December receive an average of 3 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Silverton, 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 92 123 198 238 290 330 385 347 271 217 142 116
Mean daily daylight hours 9h 12m 10h 25m 11h 57m 13h 32m 14h 52m 15h 33m 15h 10m 13h 58m 12h 27m 10h 53m 9h 30m 8h 48m

Solar UV radiation in Silverton, Oregon, United States §

Silverton 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 Silverton UV Index data.

Average daily maximum UV levels by month for Silverton, 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