Eugene, OR Climate & Monthly Averages
The climate of Eugene
Eugene runs on a dry-summer rhythm: the warmest months are also the driest. July averages 5 mm (0.2 in) while the wet season peaks in December at 8.8 inches (224 mm). Highs range from 47°F (8°C) to 85°F (29°C).
Climate quick facts
- Hottest month: August - highs near 85°F (29°C)
- Coldest month: December - highs near 47°F (8°C)
- Decade extremes (2015-2024): 109°F (43°C) high · 14°F (-10°C) low
- Wettest month: December (19 rainy days) · Sunniest: July (13.6 h sun/day)
- Climate type: oceanic
- Annual swing: 16°C between the average warmest and coolest month · day to night: 11°C
- Snow: about 7 days a year
- Average humidity: 76%
Temperatures through the year
August is the warm end of the year, averaging 85°F (29°C) by day and 56°F (14°C) overnight. December sits at the other end of the year: 47°F (8°C) by day, 35°F (1°C) at night. Days and nights are about 11°C apart on average - wider than roughly 83% of the cities we track.
Rain, sun and snow
December is the wettest month at 8.8 inches (224 mm) over 19 days; July is the driest. Snow falls on roughly 7 days a year, mostly December through April. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 109°F (43°C) and the lowest daily minimum 14°F (-10°C).
How Eugene compares
- Eugene sits close to the middle of our dataset on most measures: 53°F (12°C) as an annual average, 49.9 inches (1266 mm) of precipitation and 8.6 hours of sun a day.
Ranked against every city in our dataset, each measured on the same ten-year window.
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 stays on the cool side of mild here - highs near 60°F (16°C), nights near 41°F (5°C), and rain falls on around 40 of the 90 days, plus about 2 snowy days.
Summer (June through August)
Summer sits firmly in the heat here - highs near 81°F (27°C), nights near 54°F (12°C), and rain comes on about 9 days over the three months. Daylight is generous - around 12.8 hours of sun a day.
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); rain falls on around 34 of the 90 days.
Winter (December through February)
Winter in Eugene stays firmly cold, with daytime highs averaging 49°F (9°C) and nights around 35°F (1°C); rain falls on around 51 of the 90 days, plus about 4 snowy days.
Climate questions, answered
How often does it rain in Eugene?
How sunny is Eugene?
What is the average temperature in Eugene?
Is Eugene humid?
Best time to visit Eugene
The best time to visit Eugene is generally May to July and September to October, when the dry season is running but the afternoons are still bearable. Daytime temperatures in that window sit near 73°F (23°C), with rain on about 7 days a month. For the same question asked the other way round, see where else is warm in May.
Pack for Eugene with light clothing for the warm months, a warm jacket and layers for the cooler season, a compact umbrella or rain shell and moisture-wicking fabrics for the humidity. Even in August, lows of 56°F (14°C) make an extra layer worth the space.
Eugene temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.