Weather in Springfield, Oregon
Shoots and Sprouts Rise in Ranks. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Drizzle28%58°48°
- SundayMay 17Light Rain30%63°42°
- MondayMay 18Overcast—69°43°
- TuesdayMay 19Overcast—69°41°
- WednesdayMay 20Overcast—68°41°
- ThursdayMay 21Partly Cloudy—78°45°
- FridayMay 22Partly Cloudy—77°47°
- PM 2.5
- 4.1 μg/m³
- PM 10
- 6.6 μg/m³
- NO₂
- 0.5 μg/m³
- Ozone
- 77.0 μg/m³
- UV Index
- 1.4 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 12:49 PM
- Moonset
- 4:14 AM
- In sign
- ♉︎ Taurus
Shoots and Sprouts Rise in Ranks
Springfield at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: May 10 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Cool-season window is open
As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Springfield's warmest month is August (~68°F mean) and its coldest is December (~41°F). Rainfall peaks in December (7.2 inches) and bottoms out in July (0.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 41° | 6.0″ | 12 |
| February | 43° | 4.7″ | 10 |
| March | 47° | 4.6″ | 11 |
| April | 51° | 3.3″ | 9 |
| May | 56° | 2.5″ | 7 |
| June | 61° | 1.2″ | 4 |
| July | 68° | 0.3″ | 1 |
| August | 68° | 0.4″ | 1 |
| September | 63° | 1.4″ | 3 |
| October | 53° | 3.2″ | 7 |
| November | 46° | 6.0″ | 12 |
| December | 41° | 7.2″ | 13 |
Regional context
Springfield sits within a warm-summer Mediterranean climate region — a cohort that shares similar temperature ranges, seasonal patterns, and growing conditions across nearby cities.
Similar climates: Portland, OR, Eugene, OR, Salem, OR, Medford, OR, Bend, OR.
Frequently asked
- When does it freeze in Springfield?
- Springfield's last spring frost typically falls around mid-May, and the first fall frost arrives around mid-October.
- What is the rainy season in Springfield?
- December is the wettest month with about 7.2 inches of rain on average; the city receives roughly 41 inches annually.
- What is the warmest month in Springfield?
- August is typically warmest, averaging about 68°F.
- What is the coldest month in Springfield?
- December is typically coldest, averaging about 41°F.
- When can I start a vegetable garden in Springfield?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-May); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Springfield get?
- Springfield averages about 90 rainy days per year.
- What hardiness zone is Springfield?
- Springfield's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Springfield, Oregon sits in a warm-summer Mediterranean climate zone. January means hover near 41°F while July averages 68°F — a 26°F seasonal swing.
Across the year, Springfield receives about 41 inches of precipitation spread over roughly 90 rainy days.
The rhythm of the year is set by latitude (44.1°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.