Eugene, Oregon enjoys a Mediterranean climate with mild, wet winters and warm, dry summers.
In August, the hottest month, temperatures average around 85°F, making it perfect for outdoor activities.
Conversely, the winter months bring cooler temperatures, with December averaging highs of 46°F and lows of 36°F.
For those interested in weather patterns, Eugene gets about 40 inches of rain annually, ensuring lush greenery year-round.
This city’s mild climate is characterized by a cool season lasting from November to February. The coldest month, December, sees temperatures drop to around 33.8°F.
Visitors and residents alike can appreciate Eugene’s balanced weather.
The city averages temperature highs of 80°F in July and lows around 40°F in January.
For more detailed data on Eugene’s climate, you can refer to this climate and weather data.
Average Temperature in Eugene, Oregon
Eugene has a varied climate with temperatures differing significantly throughout the year.
Summer: The warmest month is August, with an average high of 85°F.
In July, temperatures also rise, reaching around 80°F during the day. June temperatures are slightly cooler, with average highs in the mid-70s.
Fall: September sees a gradual drop to highs of around 75°F. By October, daily highs fall to about 64°F. November brings even cooler days with temperatures further dropping to around 54°F.
Winter: December is the coldest month in Eugene, with average lows of 36°F and highs near 46°F.
In January, temperatures remain similar with average lows around 35°F. February offers a slight increase, with highs inching closer to 50°F.
Spring: March sees temperatures warming to highs around 57°F.
By April, daily highs reach around 63°F, and in May, temperatures climb further to about 70°F.
| Month | High (°F) | Low (°F) |
|---|---|---|
| January | 46 | 36 |
| February | 50 | 35 |
| March | 57 | 37 |
| April | 63 | 40 |
| May | 70 | 46 |
| June | 75 | 50 |
| July | 80 | 54 |
| August | 85 | 54 |
| September | 75 | 49 |
| October | 64 | 43 |
| November | 54 | 40 |
| December | 46 | 36 |
This climate data illustrates the average high and low temperatures across the months, making Eugene a place with mild winters and warm, dry summers.
Average Precipitation in Eugene, Oregon
Eugene experiences varying precipitation levels throughout the year, with distinct patterns in rainfall and snow. Understanding these patterns can help residents and visitors prepare for the local climate.
Average Rainfall in Eugene, Oregon
Rain is a common sight in Eugene. The city receives an average annual rainfall of around 47 inches.
The wettest months are typically November, December, and January. These months often see over 7 inches of rain each.
During the summer, especially in July and August, rainfall is minimal.
Rainy days are frequent, with about 151 days of precipitation annually. This means that nearly half the year, there is some form of rain.
Most of Eugene’s rain comes in the form of light to moderate showers, rather than heavy downpours.
Average Snow in Eugene, Oregon
Snowfall in Eugene is much less frequent compared to rainfall. The city averages only about 5 inches of snow each year.
Snow usually falls during the winter months of December, January, and February.
December witnesses the highest snowfall, with averages reaching around 2 inches.
Snow days are rare, though, with only a few per year. This makes Eugene more known for its rain rather than snow.
For those curious about the broader implications on water levels, exploring topics on water can provide valuable insights.
Average Sun in Eugene, Oregon
Eugene, Oregon, experiences significant variations in sunshine throughout the year, including differences in daily sunshine hours and clear days. The presence of cloudy versus sunny days affects the amount of solar energy received.
Average Daily Shortwave Solar Energy in Eugene, Oregon
Eugene receives varying amounts of shortwave solar energy, which refers to sunlight energy reaching the ground.
In summer, clear skies lead to higher solar energy, especially in July and August.
During winter, sunlight is less intense primarily because of shorter days and frequent cloud cover. December usually has fewer sunshine hours.
The spring and fall seasons experience moderate sunlight.
In spring, days gradually lengthen and bring more sunshine. In the fall, the reverse happens with decreasing daylight.
Overall, Eugene exhibits distinct seasonal patterns in solar energy, providing ample sunshine for outdoor activities in summer and less during winter months.
For a detailed breakdown, you can explore this weather and climate information for Eugene.
Average Humidity in Eugene, Oregon
Eugene, Oregon has a fairly consistent level of humidity throughout the year.
The average annual humidity is 75%. This makes it relatively comfortable during most months.
Winter Months:
In the winter, humidity is slightly higher. December and January experience the highest average humidity, around 84%.
Summer Months:
During the summer, especially in July and August, the average humidity drops to around 68%.
Below is a summary of the average monthly humidity:
| Month | Average Humidity (%) |
|---|---|
| January | 84 |
| February | 81 |
| March | 78 |
| April | 75 |
| May | 72 |
| June | 70 |
| July | 68 |
| August | 68 |
| September | 71 |
| October | 75 |
| November | 80 |
| December | 84 |
Humidity levels can affect the dew point. In Eugene, the average dew point ranges from 30°F in winter to 55°F in summer.
Understanding these levels helps in planning activities and dressing appropriately for the weather.
For more detailed information, visit the Eugene Climate page.
Average Wind in Eugene, Oregon
Eugene, Oregon experiences varying wind speeds throughout the year. The average wind speed typically ranges from 5 to 10 mph.
Wind Speed by Month
- January: Wind speeds are around 7 mph.
- July: Wind speeds increase slightly, averaging 9 mph.
- December: Wind speeds drop back to about 6 mph.
The windiest month is usually July, with average speeds peaking at about 9 mph. This makes for breezier summer days.
Wind Patterns
Wind patterns in Eugene are affected by the surrounding landscape.
During winter, winds can bring chilly air from the north. In summer, winds often come from the west, bringing milder temperatures.
Understanding the wind speeds and patterns helps in planning outdoor activities and understanding local weather changes.
Average Air Quality in Eugene, Oregon
Eugene, Oregon, experiences varying air quality throughout the year. The most common measure to assess air quality is the Air Quality Index (AQI).
In general, Eugene’s AQI can range from Good to Hazardous. The AQI scale categorizes air quality as follows:
- 0-50: Good
- 51-100: Moderate
- 101-150: Unhealthy for Sensitive Groups
- 151-200: Unhealthy
- 201-300: Very Unhealthy
- 301-500: Hazardous
Eugene typically enjoys Good air quality during most months.
However, wildfires can lead to significant drops in air quality.
In 2020, wildfires caused the AQI in Eugene to exceed 300, reaching the Hazardous level for the first time since 1968.
During such events, ash particles, smoke, and pollutants can linger in the air, affecting visibility and respiratory health.
It’s crucial to monitor the AQI, especially during the wildfire season, which can spike between late summer and early fall.
Pressure changes can also influence air quality.
High-pressure systems usually lead to stagnant air, trapping pollutants closer to the ground. Low-pressure systems, on the other hand, often bring winds and rains that help clear the air.
Topography of Eugene, Oregon
Eugene, Oregon, lies at a latitude of approximately 44.0521° N and a longitude of about 123.0868° W. The city sits in the Willamette Valley, bordered by the Cascade Range to the east and the Coast Range to the west.
The elevation of Eugene is around 430 feet above sea level. This elevation contributes to its mild climate.
Eugene’s landscape is mostly flat with some rolling hills, making it accessible for outdoor activities like hiking and biking.
Mount Pisgah, located just south of Eugene, rises to an elevation of 1,531 feet. It’s a popular spot for hiking and provides panoramic views of the surrounding areas.
The area to the southwest of the city features the Fern Ridge Reservoir, a large man-made lake that’s used for recreation and flood control.
The Willamette River flows through Eugene, adding to its scenic beauty and providing opportunities for water sports. Several parks and natural areas are scattered throughout Eugene, enhancing its green spaces and recreational offerings.
Notable Elevations:
- Downtown Eugene: ~430 feet
- Mount Pisgah: 1,531 feet
- Spencer Butte: 2,058 feet
Extreme Weather Events that Occur in Eugene, Oregon
Eugene, Oregon experiences various extreme weather events throughout the year. These events can disrupt daily life and cause significant damage.
Ice Storms: Eugene is prone to ice storms, which can bring freezing rain and sleet. The city often declares emergencies, leading to parking bans and urging residents to remove vehicles from streets to allow for plowing. During ice storms, tree limbs and power lines can snap under the weight of ice.
Snowfall: Heavy snowfall can occur, especially in winter. Eugene recently faced a major snow emergency, leading to significant disruptions.
Snow depths can reach several inches, making roads hazardous and disrupting daily activities.
Extreme Heat: During summer, Eugene can experience extreme heat waves. Temperatures can soar to over 100 degrees Fahrenheit, particularly during events such as the Fourth of July weekend.
This high heat can pose health risks, especially for vulnerable populations.
Hail: Hailstorms are another extreme weather event in Eugene. These storms can bring hailstones large enough to damage cars, roofs, and crops. Hail can also cause injuries to people caught outside.
Fog: Dense fog is common in Eugene, especially during winter and early spring. This can reduce visibility, making driving dangerous. Foggy conditions can last for hours or even days, affecting transportation and daily routines.
Best Time of the Year to Visit Eugene, Oregon
Eugene offers a range of experiences throughout the year, with each season bringing its own unique weather and activities. The ideal time to visit depends on what you enjoy most, whether it’s the warmth of summer, the blooms of spring, or the cooler, crisp air of fall and winter.
What Is Eugene, Oregon Like in Spring
Spring in Eugene is a refreshing time of year, marked by blooming flowers and moderate temperatures. From March to May, temperatures typically range from the high 40s to mid-60s in Fahrenheit.
Rain is common in spring, so visitors should pack waterproof clothing. This time is ideal for visiting the Willamette River or taking a hike in one of the many natural parks like Spencer Butte.
Events such as the Eugene Marathon occur in late April, attracting numerous visitors. Overall, spring offers a blend of mild weather and outdoor activities perfect for nature enthusiasts.
What Is Eugene, Oregon Like in Summer
Summer in Eugene is warm and dry, offering the most pleasant weather for outdoor activities. From June to August, the temperatures usually range from lows in the mid-50s to highs in the mid-80s in Fahrenheit.
July is particularly warm, with average highs around 80°F.
Rainfall is minimal, making it the best time for activities like kayaking on the Willamette River or attending the Oregon Country Fair in early July.
Summer is also the peak tourist season, so expect larger crowds at popular spots. The abundant sunshine makes it an excellent time to explore the city’s parks and trails.
What Is Eugene, Oregon Like in Fall
Fall in Eugene is characterized by cooling temperatures and vibrant fall foliage. From September to November, temperatures typically range from the high 40s to low 70s in Fahrenheit.
September often feels like an extension of summer with warm days and cool nights.
October and November bring more rain, but the changing leaves and crisp air make it a beautiful time for outdoor activities.
Oregon Ducks football games are a major attraction in fall, bringing sports fans to the city. It’s a great season for visiting wineries in the nearby Willamette Valley and enjoying the harvest season.
What Is Eugene, Oregon Like in Winter
Winter in Eugene is cold and wet. The highest rainfall occurs in November and December.
From December to February, temperatures generally range from the low 30s to high 40s in Fahrenheit. Snow is rare but not unheard of. Instead, Eugene experiences frequent rain, so waterproof gear is necessary.
The cooler weather draws fewer tourists, making it a quiet time to visit the city’s museums and indoor attractions, like the Jordan Schnitzer Museum of Art.
The wet and cool winters make cozying up in a local coffee shop or exploring craft breweries popular activities among residents and visitors.