Oregon Weather by Month
Oregon, situated in the Pacific Northwest region of the United States, is bordered by Washington to the north, Idaho to the east, Nevada to the southeast, and California to the south. It joined the Union on February 14, 1859, as the 33rd state. Oregon’s history is marked by its indigenous peoples, such as the Chinook and the Nez Perce, as well as European explorers and pioneers who settled the region during the Oregon Trail migration of the 19th century. Major cities include Portland (the largest city), known for its vibrant culture, Eugene, Salem (the capital), Bend, and Medford. Iconic landmarks encompass the Columbia River Gorge, Crater Lake National Park, Mount Hood, and the Oregon Coastline with its rugged cliffs and scenic beaches. Oregon’s economy is diverse, with key sectors including technology, agriculture, forestry, and tourism, fueled by attractions like the Oregon Shakespeare Festival in Ashland and the Willamette Valley wine region.
Weather Overview:
Oregon experiences a varied climate due to its diverse geography, with coastal regions experiencing a maritime climate, while inland areas have a more continental climate with hot, dry summers and mild, wet winters.
| Month | Average Temperature (°F) | Average Precipitation (inches) |
|---|---|---|
| January | 44.1 | 6.65 |
| February | 46.7 | 5.34 |
| March | 50.9 | 4.51 |
| April | 55.6 | 3.03 |
| May | 62.1 | 2.31 |
| June | 68.3 | 1.63 |
| July | 73.0 | 0.68 |
| August | 73.2 | 0.93 |
| September | 68.4 | 1.69 |
| October | 58.8 | 3.22 |
| November | 49.2 | 6.41 |
| December | 43.2 | 7.07 |
January
January in Oregon typically brings cool temperatures and wet weather, especially along the coast and in the western regions of the state. Average temperatures range from the low 40s°F (4-5°C) in the western valleys to the low 30s°F (-1°C) in the mountainous areas. Rainfall is common, particularly in the coastal and western regions, with occasional snowfall in the higher elevations of the Cascade Range. January is not typically regarded as the best time for outdoor activities in Oregon due to the inclement weather. However, it can be an ideal time for travelers interested in experiencing the state’s cultural attractions, culinary scene, and indoor activities such as museums and art galleries.
February
February in Oregon continues to be cool and wet, with temperatures similar to January. Average temperatures range from the low to mid-40s°F (5-7°C) in the western valleys to the low 30s°F (-1°C) in the mountains. Rainfall persists, especially in the coastal and western regions, with snowfall possible in the mountains and higher elevations. While outdoor activities may be limited due to the weather, February can be a quieter time to visit Oregon, offering opportunities for peaceful retreats and exploring indoor attractions. Travelers visiting Oregon in February can immerse themselves in the state’s vibrant arts and culture scene, sample local cuisine, and enjoy cozy evenings by the fireplace.
March
March heralds the arrival of spring in Oregon, with gradually warming temperatures and longer daylight hours. Average temperatures range from the mid-40s°F (7-8°C) in the western valleys to the low 30s°F (0°C) in the mountains. While rain is still common, especially in the coastal and western regions, March marks the beginning of a transition to drier weather patterns. Snow begins to melt in the mountains, revealing blooming wildflowers and rushing waterfalls. March is an excellent time for travelers interested in outdoor activities such as hiking, birdwatching, and exploring nature trails as the landscape awakens from winter. It’s also a prime time for whale watching along the Oregon coast as gray whales migrate northward. Overall, March offers a delightful blend of winter’s end and the promise of spring in Oregon.
April
April brings further signs of spring to Oregon, with mild temperatures and blooming flora across the state. Average temperatures range from the mid-50s°F (12-13°C) in the western valleys to the low 40s°F (5-6°C) in the mountains. While rain showers are still possible, especially in the western regions, April sees a significant decrease in precipitation compared to the winter months. The landscape bursts into color as cherry blossoms, tulips, and rhododendrons adorn gardens and parks throughout the state. April is an ideal time for outdoor activities such as hiking, biking, and picnicking, as well as exploring Oregon’s scenic drives and coastal vistas. Travelers visiting Oregon in April can experience the beauty of spring in full bloom, with ample opportunities for outdoor adventure and natural exploration.
May
May is one of the best times to visit Oregon, with mild temperatures, abundant sunshine, and blooming landscapes throughout the state. Average temperatures range from the mid-60s°F (18-19°C) in the western valleys to the low 50s°F (10-11°C) in the mountains. May offers ideal conditions for outdoor activities such as hiking, camping, and wildlife viewing, as well as exploring Oregon’s coastal towns and scenic viewpoints. Spring festivals and events abound in May, celebrating everything from food and wine to music and culture. Travelers visiting Oregon in May can enjoy the vibrant atmosphere of spring, with ample opportunities for outdoor recreation, cultural immersion, and culinary delights.
June
June heralds the arrival of summer in Oregon, with warm temperatures and long daylight hours. Average temperatures range from the low to mid-70s°F (23-24°C) in the western valleys to the low 60s°F (15-16°C) in the mountains. While June is generally a dry month, occasional rain showers are still possible, especially in the western regions. Summer activities such as hiking, camping, fishing, and boating become popular as the weather becomes more conducive to outdoor recreation. June also marks the beginning of festival season in Oregon, with events celebrating everything from agriculture and craft beer to music and outdoor adventure. Travelers visiting Oregon in June can enjoy the quintessential joys of summer, from exploring scenic trails to attending lively festivals and events.
July
July is typically the warmest month of the year in Oregon, with hot temperatures and clear skies prevailing across the state. Average temperatures range from the mid-70s°F (24-25°C) in the western valleys to the low 60s°F (16°C) in the mountains. While coastal areas enjoy milder temperatures, inland regions can experience heatwaves, especially in the high desert areas of central and eastern Oregon. July offers ample opportunities for outdoor recreation, including swimming, kayaking, and rafting on Oregon’s rivers and lakes. Summer festivals and events continue throughout the month, providing entertainment for visitors of all ages. Travelers visiting Oregon in July can embrace the joys of summer, from sun-soaked adventures to evening concerts under the stars.
August
August continues the warm and dry conditions of summer in Oregon, with temperatures remaining high throughout the month. Average temperatures range from the mid-70s°F (24-25°C) in the western valleys to the low 60s°F (16°C) in the mountains. While August is generally a dry month, occasional thunderstorms can occur, especially in the eastern regions of the state. Outdoor activities such as hiking, camping, and mountain biking are still popular, with many parks and recreational areas offering opportunities for adventure. August is also a prime time for visiting Oregon’s vineyards and wineries, as grape harvest season begins. Travelers visiting Oregon in August can savor the last weeks of summer, enjoying outdoor pursuits and exploring the state’s diverse landscapes and attractions.
September
September marks the transition from summer to fall in Oregon, with gradually cooling temperatures and changing foliage. Average temperatures range from the mid-60s°F (18-19°C) in the western valleys to the low 50s°F (10-11°C) in the mountains. While early September may still feel like summer, especially in the southern regions, cooler weather begins to prevail towards the end of the month. September is an ideal time for outdoor activities such as hiking, camping, and scenic drives, as the landscape transforms into a tapestry of autumn colors. Fall festivals and events also abound in Oregon during September, offering opportunities to celebrate the harvest season and local culture. Travelers visiting Oregon in September can experience the beauty of late summer and early fall, enjoying mild weather and picturesque landscapes before the onset of winter.
October
October is synonymous with fall foliage in Oregon, as the leaves change colors and the landscape transforms into a breathtaking tapestry of reds, oranges, and yellows. Average temperatures range from the mid-50s°F (12-13°C) in the western valleys to the low 40s°F (5-6°C) in the mountains. Cool, crisp days and clear skies make October perfect for outdoor activities such as hiking, apple picking, and visiting pumpkin patches. Fall festivals and events continue throughout the month, offering opportunities to celebrate the season with hayrides, corn mazes, and other autumnal delights. Travelers visiting Oregon in October can immerse themselves in the beauty of fall, exploring scenic drives and hiking trails adorned with vibrant foliage.
November
November marks the transition to winter in Oregon, with cooling temperatures and occasional frost towards the end of the month. Average temperatures range from the mid-40s°F (7-8°C) in the western valleys to the low 30s°F (-1°C) in the mountains. While early November may still feel like fall, with lingering foliage and mild weather, colder conditions become more prevalent as the month progresses. November is a time of transition, with outdoor activities giving way to indoor pursuits such as holiday shopping and cultural events. Travelers visiting Oregon in November can experience the changing seasons, from the last traces of fall to the first hints of winter, making it an ideal time for cozy getaways and exploring indoor attractions.
December
December brings winter weather to Oregon, with cold temperatures and the potential for snowfall across the state. Average temperatures range from the low 40s°F (5-6°C) in the western valleys to the low 30s°F (0°C) in the mountains. While snow is relatively rare in many parts of the state, it can occur, especially in the higher elevations and eastern regions. December also brings festive holiday celebrations and events, offering opportunities to experience the magic of the season. Outdoor activities such as skiing, snowboarding, and snowshoeing are popular, providing entertainment for visitors of all ages. December can be a cozy and enchanting time to visit Oregon, with the promise of winter festivities and seasonal cheer.
