Weather in Rockvale, Tennessee
Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Overcast—82°63°
- SundayMay 17Overcast—88°64°
- MondayMay 18Overcast—87°66°
- TuesdayMay 19Heavy Drizzle22%84°69°
- WednesdayMay 20Light Showers77%82°65°
- ThursdayMay 21Heavy Drizzle61%78°64°
- FridayMay 22Light Drizzle58%79°66°
- PM 2.5
- 5.6 μg/m³
- PM 10
- 5.8 μg/m³
- NO₂
- 3.2 μg/m³
- Ozone
- 91.0 μg/m³
- UV Index
- 0.0 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 10:50 AM
- Moonset
- 1:10 AM
- In sign
- ♊︎ Gemini
Roses open on the Piedmont edge
Rockvale at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: March 22 (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
Peak growing season
As of May 17, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
Rockvale's warmest month is July (~79°F mean) and its coldest is January (~38°F). Rainfall peaks in June (5.7 inches) and bottoms out in October (3.5 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 38° | 4.7″ | 8 |
| February | 41° | 4.9″ | 7 |
| March | 49° | 5.3″ | 9 |
| April | 58° | 4.8″ | 7 |
| May | 67° | 4.9″ | 8 |
| June | 75° | 5.7″ | 9 |
| July | 79° | 5.0″ | 8 |
| August | 78° | 3.6″ | 6 |
| September | 72° | 4.0″ | 6 |
| October | 60° | 3.5″ | 6 |
| November | 49° | 4.1″ | 6 |
| December | 41° | 5.5″ | 8 |
Frequently asked
- When does it freeze in Rockvale?
- Rockvale's last spring frost typically falls around mid-March, and the first fall frost arrives around mid-December.
- What is the rainy season in Rockvale?
- June is the wettest month with about 5.7 inches of rain on average; the city receives roughly 56 inches annually.
- What is the warmest month in Rockvale?
- July is typically warmest, averaging about 79°F.
- What is the coldest month in Rockvale?
- January is typically coldest, averaging about 38°F.
- When can I start a vegetable garden in Rockvale?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-March); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Rockvale get?
- Rockvale averages about 87 rainy days per year.
- What hardiness zone is Rockvale?
- Rockvale'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
Rockvale, Tennessee sits in a humid subtropical climate zone. January means hover near 38°F while July averages 79°F — a 41°F seasonal swing.
Across the year, Rockvale receives about 56 inches of precipitation spread over roughly 87 rainy days.
The rhythm of the year is set by latitude (35.8°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.