Weather in Kuna, Idaho
High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Overcast—61°48°
- SundayMay 17Overcast—59°41°
- MondayMay 18Overcast—65°40°
- TuesdayMay 19Overcast—72°42°
- WednesdayMay 20Overcast—70°43°
- ThursdayMay 21Partly Cloudy—74°43°
- FridayMay 22Partly Cloudy—81°52°
- PM 2.5
- 2.0 μg/m³
- PM 10
- 2.6 μg/m³
- NO₂
- 1.0 μg/m³
- Ozone
- 100.0 μg/m³
- UV Index
- 0.1 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 12:24 PM
- Moonset
- 3:44 AM
- In sign
- ♊︎ Gemini
High country wildflowers peak
Kuna at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: May 7 (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
Kuna's warmest month is July (~75°F mean) and its coldest is January (~31°F). Rainfall peaks in December (1.4 inches) and bottoms out in August (0.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 31° | 1.4″ | 5 |
| February | 37° | 1.0″ | 4 |
| March | 45° | 1.3″ | 4 |
| April | 50° | 1.1″ | 4 |
| May | 59° | 1.4″ | 4 |
| June | 67° | 0.7″ | 2 |
| July | 75° | 0.3″ | 1 |
| August | 74° | 0.2″ | 1 |
| September | 64° | 0.4″ | 1 |
| October | 52° | 0.8″ | 3 |
| November | 40° | 1.2″ | 4 |
| December | 31° | 1.4″ | 5 |
Regional context
Kuna 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: Boise, ID, Nampa, ID, Coeur d'Alene, ID, Meridian, ID, Caldwell, ID.
Frequently asked
- When does it freeze in Kuna?
- Kuna's last spring frost typically falls around mid-May, and the first fall frost arrives around mid-October.
- What is the rainy season in Kuna?
- December is the wettest month with about 1.4 inches of rain on average; the city receives roughly 11 inches annually.
- What is the warmest month in Kuna?
- July is typically warmest, averaging about 75°F.
- What is the coldest month in Kuna?
- January is typically coldest, averaging about 31°F.
- When can I start a vegetable garden in Kuna?
- 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 Kuna get?
- Kuna averages about 37 rainy days per year.
- What hardiness zone is Kuna?
- Kuna'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
Kuna, Idaho sits in a warm-summer Mediterranean climate zone. January means hover near 31°F while July averages 75°F — a 44°F seasonal swing.
Across the year, Kuna receives about 11 inches of precipitation spread over roughly 37 rainy days.
The rhythm of the year is set by latitude (43.5°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.