Eugene, OR Climate & Monthly Averages
The climate of Eugene
Weather in Eugene is shaped by its oceanic climate - expect mild temperatures year-round with regular rainfall. August afternoons typically reach 85°F (29°C), while December highs hover near 47°F (8°C). Annual precipitation averages 49.8 inches (1266 mm) over about 134 rainy days.
Climate quick facts
- Hottest month: August - highs near 85°F (29°C)
- Coldest month: December - highs near 47°F (8°C)
- Record high: 109°F (43°C) · Record low: 14°F (-10°C) (2015–2024)
- Wettest month: December (19 rainy days) · Sunniest: July (13.6 h sun/day)
- Climate type: oceanic - mild temperatures year-round with regular rainfall
- Snow: about 7 days a year
Temperatures through the year
The warmest stretch of the year centers on August. Highs average 85°F (29°C) and overnight lows stay near 56°F (14°C). The coolest month is December, with typical highs of 47°F (8°C) and lows around 35°F (1°C). Based on 2015–2024 weather data, temperatures have reached as high as 109°F (43°C) and dropped as low as 14°F (-10°C).
Rain, sun and snow
December is usually the wettest month. It brings about 8.8 inches (224 mm) of rain over 19 days, while July is the driest. July brings the most sunshine, averaging 13.6 hours of sun a day. Snow falls on about 7 days in a typical year, mostly from December through April.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 49° | 35° | 17 | 6.8 in | 4.7 h/day | 88% |
| February | 50° | 34° | 15 | 5.7 in | 5.8 h/day | 85% |
| March | 54° | 36° | 16 | 5.9 in | 7.3 h/day | 83% |
| April | 59° | 40° | 15 | 4.8 in | 8.6 h/day | 79% |
| May | 67° | 46° | 9 | 2.7 in | 10.4 h/day | 75% |
| June | 75° | 51° | 6 | 1.7 in | 12.3 h/day | 66% |
| July | 84° | 56° | 1 | 0.2 in | 13.6 h/day | 58% |
| August | 85° | 56° | 2 | 0.3 in | 12.6 h/day | 59% |
| September | 76° | 51° | 6 | 2.1 in | 10.5 h/day | 68% |
| October | 64° | 45° | 11 | 4.1 in | 7.7 h/day | 80% |
| November | 53° | 38° | 16 | 6.8 in | 5.6 h/day | 87% |
| December | 47° | 35° | 19 | 8.8 in | 4.1 h/day | 90% |
Eugene month by month
Eugene weather in January
January brings highs around 49°F (10°C), lows near 35°F (2°C), about 17 wet days.
Eugene weather in February
February brings highs around 50°F (10°C), lows near 34°F (1°C), about 15 wet days and roughly 2 snowy days.
Eugene weather in March
March brings highs around 54°F (12°C), lows near 36°F (2°C), about 16 wet days and roughly 2 snowy days.
Eugene weather in April
April brings highs around 59°F (15°C), lows near 40°F (4°C), about 15 wet days.
Eugene weather in May
May brings highs around 67°F (19°C), lows near 46°F (8°C), about 9 wet days.
Eugene weather in June
June brings highs around 75°F (24°C), lows near 51°F (11°C), about 6 wet days.
Eugene weather in July
July brings highs around 84°F (29°C), lows near 56°F (13°C), about 1 wet days - typically the driest month and the sunniest month of the year in Eugene.
Eugene weather in August
August brings highs around 85°F (29°C), lows near 56°F (14°C), about 2 wet days - typically the hottest month of the year in Eugene.
Eugene weather in September
September brings highs around 76°F (24°C), lows near 51°F (11°C), about 6 wet days.
Eugene weather in October
October brings highs around 64°F (18°C), lows near 45°F (7°C), about 11 wet days.
Eugene weather in November
November brings highs around 53°F (12°C), lows near 38°F (3°C), about 16 wet days.
Eugene weather in December
December brings highs around 47°F (8°C), lows near 35°F (1°C), about 19 wet days and roughly 2 snowy days - typically the coldest month and the wettest month of the year in Eugene.
Seasons in Eugene
Spring (March through May)
Spring in Eugene is mild, with daytime highs averaging 60°F (16°C) and nights around 41°F (5°C); expect showers on roughly 40 days across the season, plus around 2 snowy days.
Summer (June through August)
Summer in Eugene runs hot, with daytime highs averaging 81°F (27°C) and nights around 54°F (12°C); rain falls on about 9 days over the three months.
Fall (September through November)
Fall in Eugene is crisp but comfortable, with daytime highs averaging 64°F (18°C) and nights around 45°F (7°C); expect showers on roughly 34 days across the season.
Winter (December through February)
Winter in Eugene runs cold, with daytime highs averaging 49°F (9°C) and nights around 35°F (1°C); expect showers on roughly 51 days across the season, plus around 4 snowy days.
Climate questions, answered
What is the average temperature in Eugene?
Is Eugene hot in summer?
Is Eugene cold in winter?
How many rainy days does Eugene get in a year?
Best time to visit Eugene
The best time to visit Eugene is generally May to July and September to October, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 73°F (23°C).
Pack for Eugene with a warm jacket and layers for the cooler season; a compact umbrella or rain shell - showers are a regular feature; moisture-wicking fabrics to cope with the humidity. Evenings can feel noticeably cooler than afternoons - August nights average 56°F (14°C).
Eugene temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.