Greenville, South Carolina Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Greenville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——86°58°—
- FridayJun 5Overcast——89°62°+3°
- SaturdayJun 6Overcast——86°64°-3°
- SundayJun 7Overcast——88°66°+2°
- MondayJun 8Drizzle31%—90°70°+2°
- TuesdayJun 9Overcast27%—69°63°-21°
- WednesdayJun 10Light Drizzle17%0.02″68°62°-1°
PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.98 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust. AQI down 9 over the last 6 hours (steady decline since this morning).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.98 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.98
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:42 AM
- Moonset
- 1:45 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Greenville at a glance
- Today vs. normal: 18°F below the seasonal normal for this latitude
- Last frost: March 16 (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 4, 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
July brings Greenville's warmest temperatures at around 78°F mean, while January delivers the coldest at approximately 41°F. December sees peak rainfall with 5.1 inches, compared to February's low of 3.5 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 41° | 4.4″ | 6 |
| February | 44° | 3.5″ | 6 |
| March | 51° | 4.3″ | 6 |
| April | 60° | 4.2″ | 7 |
| May | 67° | 3.8″ | 6 |
| June | 74° | 4.4″ | 7 |
| July | 78° | 4.6″ | 7 |
| August | 77° | 4.4″ | 6 |
| September | 71° | 4.0″ | 6 |
| October | 60° | 3.9″ | 5 |
| November | 50° | 4.0″ | 6 |
| December | 43° | 5.1″ | 6 |
Regional context
Greenville falls within the humid subtropical climate region, sharing similar temperature ranges, seasonal patterns, and growing conditions with other cities in this zone.
Similar climates: Charleston, SC, Columbia, SC, Myrtle Beach, SC, Rock Hill, SC, Spartanburg, SC.
Naturalist notes
Late May brings the arrival of Ruby-throated Hummingbirds as they establish territories around flowering plants.
Dogwood trees complete their spring blooming cycle by early May, dropping white petals across forest floors.
Frequently asked
- When does it freeze in Greenville?
- Spring's final frost typically occurs around mid-March in Greenville, while the first fall frost generally arrives around mid-December.
- What is the rainy season in Greenville?
- December ranks as the wettest month, averaging about 5.1 inches of rain, while the city receives roughly 51 inches annually.
- What is the warmest month in Greenville?
- July typically records the warmest temperatures, averaging about 78°F.
- What is the coldest month in Greenville?
- January typically brings the coldest temperatures, averaging about 41°F.
- When can I start a vegetable garden in Greenville?
- Cool-season crops like peas and lettuce can be planted around the last spring frost in mid-March, while warm-season crops such as tomatoes and peppers should wait 1–2 weeks after.
- How many rainy days does Greenville get?
- Greenville experiences about 74 rainy days per year on average.
- What hardiness zone is Greenville?
- Greenville's USDA hardiness zone depends on its lowest average winter temperature; the USDA's online lookup tool using the city ZIP code provides the current zone designation.
Climate
Greenville, South Carolina experiences a humid subtropical climate. Winter temperatures hover near 41°F in January, while summer brings July averages of 78°F, creating a 37°F seasonal swing.
Annual precipitation totals about 51 inches, distributed across roughly 74 rainy days throughout the year.
Weather patterns here follow the city's latitude at 34.8°N, along with its proximity to large water bodies and elevation. These factors determine what grows locally, when frost threatens, and how daily weather unfolds.