Spartanburg, South Carolina Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Spartanburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——83°53°—
- FridayJun 5Overcast——88°60°+5°
- SaturdayJun 6Overcast——89°64°+1°
- SundayJun 7Overcast——91°67°+2°
- MondayJun 8Light Drizzle28%—89°72°-2°
- TuesdayJun 9Overcast20%—73°64°-16°
- WednesdayJun 10Light Drizzle13%—81°64°+8°
PM2.5 at 7.1 µg/m³ (AQI 39) with a 0.97 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust. AQI down 18 over the last 6 hours — air quality is improving sharply.
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 7.1 µg/m³ (AQI 39) with a 0.97 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.97
- Wind
- light
- 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
- 3:41 AM
- Moonset
- 1:43 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Spartanburg at a glance
- Today vs. normal: 26°F below the seasonal normal for this latitude
- Last frost: March 17 (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 Spartanburg's peak heat with average temperatures around 79°F, while January delivers the year's coldest weather at roughly 43°F. March sees the heaviest rainfall at 4.8 inches, with September marking the driest period at 3.6 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 43° | 4.3″ | 7 |
| February | 46° | 3.8″ | 7 |
| March | 53° | 4.8″ | 7 |
| April | 61° | 4.3″ | 7 |
| May | 69° | 3.9″ | 6 |
| June | 76° | 4.6″ | 7 |
| July | 79° | 4.0″ | 7 |
| August | 78° | 4.6″ | 6 |
| September | 73° | 3.6″ | 5 |
| October | 62° | 3.9″ | 5 |
| November | 51° | 3.7″ | 6 |
| December | 45° | 4.7″ | 7 |
Regional context
Located in the humid subtropical climate region, Spartanburg shares temperature ranges, seasonal cycles, and growing conditions with other cities across this zone.
Similar climates: Charleston, SC, Columbia, SC, Greenville, SC, Myrtle Beach, SC, Rock Hill, SC.
Naturalist notes
Late March brings the return of Ruby-throated Hummingbirds to Spartanburg's gardens and woodlands.
Dogwood trees typically reach full bloom across the area during early April.
Frequently asked
- When does it freeze in Spartanburg?
- The last spring frost in Spartanburg usually occurs around mid-March, while the first fall frost typically arrives around mid-December.
- What is the rainy season in Spartanburg?
- March records the highest rainfall with approximately 4.8 inches on average, contributing to the city's annual total of roughly 50 inches.
- What is the warmest month in Spartanburg?
- July typically brings the warmest temperatures, with averages around 79°F.
- What is the coldest month in Spartanburg?
- January usually delivers the coldest weather, averaging approximately 43°F.
- When can I start a vegetable garden in Spartanburg?
- Cool-season vegetables 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 Spartanburg get?
- Spartanburg experiences approximately 77 rainy days annually.
- What hardiness zone is Spartanburg?
- Spartanburg's USDA hardiness zone reflects its average minimum winter temperatures; the USDA's online zone finder using the city ZIP code provides the current designation.
Climate
Spartanburg, South Carolina experiences a humid subtropical climate. Winter temperatures in January average around 43°F, while July brings summer heat averaging 79°F — creating a 37°F seasonal swing.
Annual precipitation totals approximately 50 inches, distributed across roughly 77 rainy days throughout the year.
Weather patterns here depend on the city's latitude of 34.9°N, nearby water bodies, and local elevation. These factors determine growing seasons, frost timing, and daily weather conditions.