Eugene, OR Climate & Monthly Averages
Eugene has an oceanic climate. August is the hottest month, averaging 85° by day; December is the coldest at 47°.
Sunshine is a defining feature of Eugene's climate
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).
How sun, temperature and rain fit together
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.
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).
More climate facts for Eugene
- 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%
The most comfortable sunny-weather window
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.
What to pack
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.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 49° | 35° | 17 | 6.8 in | 4.7 h/day | 9.2 h | 55% | 88% |
| February | 50° | 34° | 15 | 5.7 in | 5.8 h/day | 10.4 h | 53% | 85% |
| March | 54° | 36° | 16 | 5.9 in | 7.3 h/day | 11.8 h | 52% | 83% |
| April | 59° | 40° | 15 | 4.8 in | 8.6 h/day | 13.4 h | 51% | 79% |
| May | 67° | 46° | 9 | 2.7 in | 10.4 h/day | 14.7 h | 28% | 75% |
| June | 75° | 51° | 6 | 1.7 in | 12.3 h/day | 15.5 h | 21% | 66% |
| July | 84° | 56° | 1 | 0.2 in | 13.6 h/day | 15.2 h | 4% | 58% |
| August | 85° | 56° | 2 | 0.3 in | 12.6 h/day | 14.0 h | 5% | 59% |
| September | 76° | 51° | 6 | 2.1 in | 10.5 h/day | 12.4 h | 20% | 68% |
| October | 64° | 45° | 11 | 4.1 in | 7.7 h/day | 10.9 h | 36% | 80% |
| November | 53° | 38° | 16 | 6.8 in | 5.6 h/day | 9.6 h | 54% | 87% |
| December | 47° | 35° | 19 | 8.8 in | 4.1 h/day | 8.9 h | 62% | 90% |
Eugene month by month
Each card shows the average high and low. The bar places that month between Eugene's coldest night and warmest afternoon.
January
- Rain
- 17 days
- Sunshine
- 4.7 h
- Daylight
- 9.2 h
February
- Rain
- 15 days
- Sunshine
- 5.8 h
- Daylight
- 10.4 h
- Snow
- 2 days
March
- Rain
- 16 days
- Sunshine
- 7.3 h
- Daylight
- 11.8 h
- Snow
- 2 days
April
- Rain
- 15 days
- Sunshine
- 8.6 h
- Daylight
- 13.4 h
May
- Rain
- 9 days
- Sunshine
- 10.4 h
- Daylight
- 14.7 h
June
- Rain
- 6 days
- Sunshine
- 12.3 h
- Daylight
- 15.5 h
July
- Rain
- 1 day
- Sunshine
- 13.6 h
- Daylight
- 15.2 h
August
- Rain
- 2 days
- Sunshine
- 12.6 h
- Daylight
- 14.0 h
September
- Rain
- 6 days
- Sunshine
- 10.5 h
- Daylight
- 12.4 h
October
- Rain
- 11 days
- Sunshine
- 7.7 h
- Daylight
- 10.9 h
November
- Rain
- 16 days
- Sunshine
- 5.6 h
- Daylight
- 9.6 h
December
- Rain
- 19 days
- Sunshine
- 4.1 h
- Daylight
- 8.9 h
- Snow
- 2 days
Looking for warmer alternatives? Browse warm places by month, or compare Eugene's coolest part of the year: December, January, February.
Seasonal weather under Eugene's sunnier skies
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.
How unusual is Eugene?
- 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.
These comparisons use the same ten-year window for every city in the dataset.
Eugene temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.