Eugene, OR weather in May
Eugene is mild in May, with frequent rain: highs average 68°F and nights drop to about 44°F. Rain falls on about 12 days. A great month for outdoor plans.
- Normal high
- 68°F
- Normal low
- 44°F
- Wet days
- 12
- 2.5 in total
- Muggy days
- 0
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 65°F | 71°F |
| Normal low | 42°F | 46°F |
| Chance of a wet day | 42% | 35% |
| Sunrise / sunset | 6:03 am / 8:15 pm | 5:32 am / 8:47 pm |
| Daylight | 14.2 h | 15.2 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical May day
- 6 am48°Fdew point 46°F
- 9 am56°Fdew point 48°F
- Noon62°Fdew point 48°F
- 3 pm66°Fdew point 49°F
- 6 pm63°Fdew point 49°F
- 9 pm54°Fdew point 47°F
NOAA hourly normals (local standard time) from Eugene Mahlon Sweet Airport (9 mi away); average wind 6 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow12 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 2.5 in; a dry May brings about 1.3 in and a wet one about 3.1 in (25th and 75th percentiles). About 1 day brings half an inch or more. Snow is very rare.
How May varies from year to year
- Warmest May, 1991-20201992: average high 75°F
- Coolest May1991: average high 61°F
- Wettest May1993: 6.9 in
- Driest May1992: 0.1 in
- Highest reading95°F (May 17, 2008)
- Lowest reading31°F (May 8, 2002)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 61°F | 68°F | 74°F |
| Normal low | 40°F | 44°F | 48°F |
| Wet days | 16 | 12 | 8 |
| Comfortable days | 8 | 16 | 20 |
| Daylight | 13.5 h | 14.8 h | 15.4 h |
Highs change by +7°F from April and +6°F into June.
Nearby alternatives in May
- Drier: Bend, OR88 mi · high 66°F · 6 wet days
- Cooler: Cannon Beach, OR134 mi · high 61°F · 14 wet days
How Eugene ranks in May
- Normal high300th warmest of 378 cities; 2nd of 6 in Oregon
- Wet days270th driest of 378
- Comfortable days70th most of 339
What to pack for Eugene in May
- A rain jacket or umbrella – rain on about 12 days
Heating and cooling
May has 281 heating degree days and 4 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How cold is Eugene in May?
The normal high is 68°F and the normal low is 44°F. From 1991 to 2020 the coldest May reading was 31°F (most recently on May 8, 2002).
Does it rain a lot in Eugene in May?
About 12 days in May have at least 0.01 in of precipitation, and the normal total is 2.5 in. The wettest May in 1991-2020 was in 1993 (6.9 in); the driest was in 1992 (0.1 in).
Is May a good time to visit Eugene?
May ranks 2nd of 12 months on our comfort score for Eugene (74 out of 100). It has about 16 comfortable days. The best month is June.
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).