Weather in Phoenix, Oregon
Shoots and Sprouts Rise in Ranks. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Overcast—62°48°
- SundayMay 17Overcast—65°45°
- MondayMay 18Clear—73°44°
- TuesdayMay 19Overcast—77°44°
- WednesdayMay 20Overcast—77°48°
- ThursdayMay 21Partly Cloudy—85°49°
- FridayMay 22Overcast—86°52°
- PM 2.5
- 3.4 μg/m³
- PM 10
- 4.9 μg/m³
- NO₂
- 0.6 μg/m³
- Ozone
- 82.0 μg/m³
- UV Index
- 0.2 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 12:55 PM
- Moonset
- 4:06 AM
- In sign
- ♊︎ Gemini
Shoots and Sprouts Rise in Ranks
Phoenix at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: April 30 (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
Phoenix's warmest month is July (~75°F mean) and its coldest is December (~39°F). Rainfall peaks in December (3.5 inches) and bottoms out in July (0.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 40° | 2.7″ | 7 |
| February | 44° | 2.0″ | 5 |
| March | 48° | 1.8″ | 6 |
| April | 53° | 1.5″ | 5 |
| May | 60° | 1.3″ | 4 |
| June | 67° | 0.7″ | 2 |
| July | 75° | 0.2″ | 1 |
| August | 75° | 0.3″ | 1 |
| September | 68° | 0.5″ | 1 |
| October | 56° | 1.2″ | 3 |
| November | 45° | 2.6″ | 7 |
| December | 39° | 3.5″ | 8 |
Regional context
Phoenix 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 Phoenix?
- Phoenix's last spring frost typically falls around mid-May, and the first fall frost arrives around mid-October.
- What is the rainy season in Phoenix?
- December is the wettest month with about 3.5 inches of rain on average; the city receives roughly 18 inches annually.
- What is the warmest month in Phoenix?
- July is typically warmest, averaging about 75°F.
- What is the coldest month in Phoenix?
- December is typically coldest, averaging about 39°F.
- When can I start a vegetable garden in Phoenix?
- 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 Phoenix get?
- Phoenix averages about 51 rainy days per year.
- What hardiness zone is Phoenix?
- Phoenix'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
Phoenix, Oregon sits in a warm-summer Mediterranean climate zone. January means hover near 40°F while July averages 75°F — a 35°F seasonal swing.
Across the year, Phoenix receives about 18 inches of precipitation spread over roughly 51 rainy days.
The rhythm of the year is set by latitude (42.3°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.