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Annex, Oregon, United States has a temperate climate. The summers are generally mild with temperatures ranging from 16-20 °C (60-68 °F). The winters are cool with temperatures ranging from -2 to 7 °C (28-45 °F). The average annual precipitation is 805 mm (31.7 inches). Rainfall is most common from October to April and the wettest month is December with an average of 120 mm (4.7 inches). Snowfall is rare and usually only occurs in the higher elevations.
Spring is the sunniest season with an average of 7 hours of sunshine per day. Summer is also quite sunny and temperatures can reach up to 30 °C (86 °F). Autumn is generally mild and sunny with temperatures ranging from 13-20 °C (55-68 °F). Winters are cold and wet with temperatures ranging from -2 to 7 °C (28-45 °F).
As of 2020, the city population is 246.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Annex, Oregon.