Climateby Month

Eugene, OR climate by month

NOAA 1991-2020 normals · 430 ft elevation

Summers in Eugene are warm; winters are chilly. Highs peak at 84°F in August and fall to 47°F in December. The wettest month is December (about 19 wet days) and the driest is July (about 3). Normal snowfall is about 2.7 in a year. The most comfortable time to visit is June.

Warmest month
84°F
August normal high
Coldest month
34°F
December normal low
Wet days a year
146
40.8 in of precipitation
Snow a year
2.7 in
normal snowfall

How warm is Eugene?

Normal highs range from 47°F in December to 84°F in August.

30°40°50°60°70°80°90° January: normal high 48°F (9°C), low 35°F (2°C) February: normal high 52°F (11°C), low 35°F (2°C) March: normal high 57°F (14°C), low 37°F (3°C) April: normal high 61°F (16°C), low 40°F (4°C) May: normal high 68°F (20°C), low 44°F (7°C) June: normal high 74°F (23°C), low 48°F (9°C) July: normal high 84°F (29°C), low 52°F (11°C) 84° 52° August: normal high 84°F (29°C), low 52°F (11°C) September: normal high 78°F (26°C), low 48°F (9°C) October: normal high 65°F (18°C), low 42°F (6°C) November: normal high 53°F (12°C), low 38°F (3°C) December: normal high 47°F (8°C), low 34°F (1°C) 47° 34° JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Eugene?

December has the most wet days (about 19); the year brings about 41 in of precipitation.

January: 18 wet days February: 15 wet days March: 18 wet days April: 16 wet days May: 12 wet days June: 8 wet days July: 3 wet days 3 August: 3 wet days September: 6 wet days October: 12 wet days November: 18 wet days December: 19 wet days 19 JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How much does it snow?

Normal snowfall is 2.7 in a year, most of it in February.

January: 0.9 in of snow February: 1.1 in of snow 1.1 March: 0.3 in of snow April: 0.0 in of snow 0.0 May: 0.0 in of snow June: 0.0 in of snow July: 0.0 in of snow August: 0.0 in of snow September: 0.0 in of snow October: 0.0 in of snow November: 0.0 in of snow December: 0.4 in of snow JFMAMJJASOND

How humid is Eugene?

Muggy days (dew point 65°F or higher) are rare in any month.

January: 0 muggy days 0 February: 0 muggy days March: 0 muggy days April: 0 muggy days May: 0 muggy days June: 0 muggy days July: 0 muggy days August: 0 muggy days September: 0 muggy days October: 0 muggy days November: 0 muggy days December: 0 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Mahlon Sweet Field Airport, 8.5 mi NW of the city center.

How much daylight?

Daylight ranges from about 9.0 hours in December to 15.4 hours in June.

January: 9.3 hours of daylight February: 10.5 hours of daylight March: 11.9 hours of daylight April: 13.5 hours of daylight May: 14.8 hours of daylight June: 15.4 hours of daylight 15.4 July: 15.1 hours of daylight August: 14.0 hours of daylight September: 12.5 hours of daylight October: 11.0 hours of daylight November: 9.7 hours of daylight December: 8.9 hours of daylight 8.9 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Eugene, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 48°F35°F 6.0 in18 0.9 in 0 9.3 h
February 52°F35°F 4.7 in15 1.1 in 0 10.5 h
March 57°F37°F 4.6 in18 0.3 in 0 11.9 h
April 61°F40°F 3.3 in16 0.0 in 0 13.5 h
May 68°F44°F 2.5 in12 0.0 in 0 14.8 h
June 74°F48°F 1.2 in8 0.0 in 0 15.4 h
July 84°F52°F 0.3 in3 0.0 in 0 15.1 h
August 84°F52°F 0.4 in3 0.0 in 0 14.0 h
September 78°F48°F 1.4 in6 0.0 in 0 12.5 h
October 65°F42°F 3.2 in12 0.0 in 0 11.0 h
November 53°F38°F 6.0 in18 0.0 in 0 9.7 h
December 47°F34°F 7.2 in19 0.4 in 0 8.9 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Eugene

By our comfort score, the best month is June.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 330125
Feb 401101
Mar 484110
Apr 59890
May 741670
Jun 822041
Jul 691117
Aug 651017
Sep 731832
Oct 611370
Nov 381121
Dec 310136

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Eugene

The last spring frost typically comes around Apr 11, and the first fall frost around Oct 23, leaving 196 frost-free days in a typical year.

Frost and freeze dates for Eugene
Typical date1 year in 10
Last spring frost (32°F)Apr 11after May 9
First fall frost (32°F)Oct 23before Oct 6
Last hard freeze (28°F)Mar 3after Mar 30
First hard freeze (28°F)Nov 11before Oct 20
Frost-free season196 daysunder 162 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Eugene Mahlon Sweet Airport (USW00024221), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Oregon.

Hottest and coldest readings, 1991-2020

The highest reading was 106°F (July 28, 2009); the lowest was -10°F (December 8, 2013).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Eugene

Similar climates elsewhere

Where the numbers come from

  • Temperature, rain, frost dates and humidity and wind by hour: Eugene Mahlon Sweet Airport (USW00024221), 8.5 mi NW of the city center, 353 ft (77 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Cottage Grove 2E (USC00351897), 18 mi S of the city center, 595 ft (165 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Mahlon Sweet Field Airport (726930-24221), 8.5 mi NW of the city center, 358 ft (72 ft lower than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).

Distances from the city center (USGS). Methodology · Report an error