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Monthly climate in Island City, Oregon, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Island City features a warm-summer Mediterranean climate (Csb).Temperatures typically range between -3 °C (28 °F) and 20 °C (68 °F) through the year, but rarely can drop to -29 °C (-19 °F) or can rise to as high as 37 °C (100 °F).The average annual precipitation amounts to about 806 mm (31.8 inches) and receives 132 rainy days on the 1 mm (0.04 inches) threshold annually.Island City enjoys an average of 3008 hours of sunshine throughout the year, and daylight varies from 8 hours 46 minutes to 15 hours 35 minutes per day.

Monthly average temperatures in Island City, Oregon, United States §

The warmest months in Island City are June, July and August, with daily mean temperatures ranging from 14 to 20 °C (58 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to -2 °C (28 - 29 °F) throughout the day. On average each year, Island City experiences 51 days above 25 °C (77.0 °F) and 154 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Island City, 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
(44°F)		 14°C
(57°F)		 17°C
(64°F)		 24°C
(76°F)		 27°C
(81°F)		 37°C
(100°F)		 36°C
(97°F)		 37°C
(100°F)		 34°C
(94°F)		 25°C
(78°F)		 17°C
(63°F)		 13°C
(56°F)
Mean maximum 5°C
(41°F)		 8°C
(48°F)		 14°C
(57°F)		 21°C
(69°F)		 25°C
(77°F)		 28°C
(82°F)		 34°C
(94°F)		 34°C
(94°F)		 32°C
(89°F)		 21°C
(70°F)		 14°C
(57°F)		 7°C
(45°F)
Average high 0°C
(33°F)		 1°C
(35°F)		 7°C
(45°F)		 11°C
(52°F)		 16°C
(61°F)		 21°C
(70°F)		 28°C
(82°F)		 27°C
(81°F)		 22°C
(71°F)		 13°C
(55°F)		 6°C
(43°F)		 1°C
(34°F)
Daily mean -3°C
(28°F)		 -3°C
(28°F)		 2°C
(36°F)		 5°C
(42°F)		 10°C
(50°F)		 14°C
(58°F)		 20°C
(68°F)		 19°C
(67°F)		 14°C
(57°F)		 6°C
(44°F)		 2°C
(35°F)		 -2°C
(29°F)
Average low -6°C
(22°F)		 -7°C
(21°F)		 -3°C
(27°F)		 -1°C
(31°F)		 3°C
(38°F)		 7°C
(45°F)		 11°C
(52°F)		 11°C
(52°F)		 6°C
(44°F)		 1°C
(34°F)		 -2°C
(29°F)		 -5°C
(23°F)
Mean minimum -17°C
(1°F)		 -21°C
(-5°F)		 -10°C
(13°F)		 -7°C
(20°F)		 -3°C
(26°F)		 1°C
(34°F)		 5°C
(42°F)		 5°C
(41°F)		 -1°C
(31°F)		 -7°C
(20°F)		 -8°C
(17°F)		 -17°C
(2°F)
Minimum -24°C
(-12°F)		 -29°C
(-19°F)		 -13°C
(9°F)		 -13°C
(9°F)		 -5°C
(24°F)		 -1°C
(31°F)		 3°C
(37°F)		 3°C
(38°F)		 -2°C
(28°F)		 -12°C
(11°F)		 -13°C
(8°F)		 -26°C
(-14°F)

Compare climate in Island City with other places

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

Monthly average precipitation in Island City, Oregon, United States §

Island City usually has the most precipitation in February, March and December, with an average of 16 rainy days and 105 mm (4.1 inches) of precipitation per month.The driest months in Island City are July, August and September. On average, 18 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Island City, 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) 86 (3.4) 130 (5.1) 89 (3.5) 86 (3.4) 77 (3.0) 44 (1.7) 3 (0.1) 16 (0.6) 35 (1.4) 64 (2.5) 79 (3.1) 96 (3.8)
Average precipitation days (≥ 1 mm) 14 19 15 14 13 9 0 4 5 10 13 16

Monthly sunshine hours in Island City, Oregon, United States §

The sunniest months in Island City are June, July and August, when the sun shines an average of 12 hours 6 minutes a day.Least sunny months in Island City: January, February and December receive an average of 4 hours 15 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Island City, 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 107 144 233 266 317 354 406 352 292 229 167 135
Mean daily daylight hours 9h 10m 10h 24m 11h 57m 13h 33m 14h 54m 15h 35m 15h 12m 13h 59m 12h 27m 10h 53m 9h 29m 8h 46m

Solar UV radiation in Island City, Oregon, United States §

Island City 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 4. For more detailed information, check out our hourly Island City UV Index data.

Average daily maximum UV levels by month for Island City, 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 5 7 8 10 10 10 9 8 5 4 2