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 | 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
Average high and low for each month, with the bar showing where it sits in Eugene's year (left is the coldest night, right is the 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
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
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. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.