Greenville, Georgia Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Greenville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Overcast——86°58°—
- SaturdayJun 6Overcast——88°62°+2°
- SundayJun 7Light Drizzle——80°68°-8°
- MondayJun 8Overcast17%—80°68°0°
- TuesdayJun 9Light Showers31%—80°67°0°
- WednesdayJun 10Overcast22%—88°65°+8°
- ThursdayJun 11Light Drizzle21%—89°68°+1°
AQI 42 (Good), driven by Ozone. AQI down 24 over the last 6 hours — air quality is improving sharply. Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~92%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~92%) — afternoon ozone should stay flat.
- Present
- AQI 34
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 4.9 µg/m³ (AQI 27) with a 0.94 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
The higher the clouds, the finer the weather.
- Moonrise
- 4:22 AM
- Moonset
- 3:01 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Greenville at a glance
- Today vs. normal: 20°F below the seasonal normal for this latitude
- Last frost: March 5 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 5, 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
Greenville's warmest month is July (~81°F mean) and its coldest is January (~45°F). Rainfall peaks in March (4.9 inches) and bottoms out in May (3.1 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 45° | 4.3″ | 7 |
| February | 49° | 4.6″ | 7 |
| March | 55° | 4.9″ | 7 |
| April | 62° | 3.8″ | 6 |
| May | 70° | 3.1″ | 6 |
| June | 78° | 4.5″ | 7 |
| July | 81° | 4.8″ | 7 |
| August | 80° | 4.0″ | 7 |
| September | 74° | 3.5″ | 5 |
| October | 64° | 3.4″ | 4 |
| November | 53° | 3.9″ | 5 |
| December | 47° | 4.6″ | 7 |
Regional context
Greenville's baseline climate, derived from NOAA NCEI 1991-2020 normals at the nearest reporting station, swings from a January mean of 45°F to a July mean of 81°F — a 36°F seasonal arc typical of the mid-latitude bands. Annual precipitation runs about 49.3 inches spread across roughly 74 days with measurable rain or snow each year.
Rainfall stays relatively even across the calendar: March tops out at 4.9 inches across 7.1 days with measurable rain, and May settles around 3.1 inches across 6.1 rainy days — a comparatively narrow seasonal range. The temperate, evenly-distributed pattern groups Greenville with places like Woodbury, GA, Gay, GA and Warm Springs, GA, where seasonal storm tracks deliver moisture more uniformly than the continental interior.
The frost-sensitive growing window opens around mid-March, when overnight lows reliably clear freezing for cool-season crops like peas, lettuce, spinach, and radishes. Warm-season transplants — tomatoes, peppers, and basil — typically wait two weeks past that date to avoid late spring cold snaps. The window closes around mid-December, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. Those dates are 30-year averages; the actual frost-free window in a given year can vary by 10-14 days at either end. Neighborhood-scale variation in elevation and cold-air pooling means the practical last-frost date inside Greenville can lag the regional mean by 5-10 days in low spots, and a bench position with good cold-air drainage can run a week ahead.
Similar climates: Woodbury, GA, Gay, GA, Warm Springs, GA, Lone Oak, GA, Luthersville, GA.
Frequently asked
- When does it freeze in Greenville?
- Greenville's last spring frost typically falls around mid-March, and the first fall frost arrives around mid-December.
- What is the rainy season in Greenville?
- March is the wettest month with about 4.9 inches of rain on average; the city receives roughly 49 inches annually.
- What is the warmest month in Greenville?
- July is typically warmest, averaging about 81°F.
- What is the coldest month in Greenville?
- January is typically coldest, averaging about 45°F.
- When can I start a vegetable garden in Greenville?
- 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 Greenville get?
- Greenville averages about 74 rainy days per year.
- What hardiness zone is Greenville?
- Greenville'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
Greenville, Georgia sits in a humid subtropical climate zone. January means hover near 45°F while July averages 81°F — a 36°F seasonal swing.
Across the year, Greenville receives about 49 inches of precipitation spread over roughly 74 rainy days.
The rhythm of the year is set by latitude (33.0°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.