Greenville, SC Climate & Monthly Averages
The climate of Greenville
Greenville runs on a dry-summer rhythm: the warmest months are also the driest. June averages 3.2 inches (82 mm) while the wet season peaks in December at 5.5 inches (139 mm). Highs range from 51°F (10°C) to 89°F (32°C).
Climate quick facts
- Hottest month: July - highs near 89°F (32°C)
- Coldest month: January - highs near 51°F (10°C)
- Decade extremes (2015-2024): 98°F (36°C) high · 7°F (-14°C) low
- Wettest month: December (9 rainy days) · Sunniest: July (11.8 h sun/day)
- Climate type: humid subtropical
- Annual swing: 21°C between the average warmest and coolest month · day to night: 10°C
- Snow: about 2 days a year
- Months averaging 30°C or hotter: 2
- Average humidity: 70%
Temperatures through the year
At its warmest, in July, Greenville runs to 89°F (32°C) in the afternoon and back to 71°F (22°C) by dawn. January is the coolest month, with highs of 51°F (10°C) and lows near 34°F (1°C). The gridded 2015-2024 daily record for this location tops out at 98°F (36°C) and bottoms at 7°F (-14°C) - decade extremes, not all-time station records. Snow falls on roughly 2 days a year, mostly December through February.
Rain, sun and snow
Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is April through May. December is the wettest month at 5.5 inches (139 mm) over 9 days; June is the driest. Sunshine averages 9.2 hours a day over the year, peaking in July at 11.8 hours.
How Greenville compares
- Greenville sits close to the middle of our dataset on most measures: 61°F (16°C) as an annual average, 50.3 inches (1278 mm) of precipitation and 9.2 hours of sun a day.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 51° | 34° | 10 | 5.1 in | 6.8 h/day | 10.1 h | 32% | 70% |
| February | 56° | 38° | 11 | 4.6 in | 7.0 h/day | 10.9 h | 38% | 70% |
| March | 63° | 44° | 11 | 4.1 in | 8.2 h/day | 11.9 h | 34% | 66% |
| April | 71° | 50° | 9 | 4.8 in | 10.1 h/day | 13.0 h | 31% | 65% |
| May | 79° | 59° | 10 | 4.1 in | 10.8 h/day | 14.0 h | 34% | 69% |
| June | 86° | 67° | 12 | 3.2 in | 11.6 h/day | 14.5 h | 40% | 68% |
| July | 89° | 71° | 14 | 3.7 in | 11.8 h/day | 14.3 h | 44% | 71% |
| August | 87° | 70° | 13 | 3.4 in | 11.0 h/day | 13.5 h | 43% | 73% |
| September | 82° | 65° | 10 | 4.5 in | 10.0 h/day | 12.3 h | 33% | 71% |
| October | 72° | 54° | 7 | 3.3 in | 8.8 h/day | 11.2 h | 23% | 72% |
| November | 61° | 44° | 8 | 4.0 in | 7.6 h/day | 10.3 h | 28% | 70% |
| December | 54° | 38° | 9 | 5.5 in | 6.1 h/day | 9.8 h | 30% | 75% |
Greenville month by month
Average high and low for each month, with the bar showing where it sits in Greenville's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 10 days
- Sunshine
- 6.8 h
- Daylight
- 10.1 h
February
- Rain
- 11 days
- Sunshine
- 7.0 h
- Daylight
- 10.9 h
March
- Rain
- 11 days
- Sunshine
- 8.2 h
- Daylight
- 11.9 h
April
- Rain
- 9 days
- Sunshine
- 10.1 h
- Daylight
- 13.0 h
May
- Rain
- 10 days
- Sunshine
- 10.8 h
- Daylight
- 14.0 h
June
- Rain
- 12 days
- Sunshine
- 11.6 h
- Daylight
- 14.5 h
July
- Rain
- 14 days
- Sunshine
- 11.8 h
- Daylight
- 14.3 h
August
- Rain
- 13 days
- Sunshine
- 11.0 h
- Daylight
- 13.5 h
September
- Rain
- 10 days
- Sunshine
- 10.0 h
- Daylight
- 12.3 h
October
- Rain
- 7 days
- Sunshine
- 8.8 h
- Daylight
- 11.2 h
November
- Rain
- 8 days
- Sunshine
- 7.6 h
- Daylight
- 10.3 h
December
- Rain
- 9 days
- Sunshine
- 6.1 h
- Daylight
- 9.8 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Greenville
Spring (March through May)
Through spring, Greenville is pleasantly warm: 71°F (22°C) by day, 51°F (11°C) after dark, and rain falls on around 30 of the 90 days.
Summer (June through August)
Summer in Greenville brings hot afternoons, with daytime highs averaging 87°F (31°C) and nights around 69°F (21°C); rain falls on around 39 of the 90 days. Daylight is generous - around 11.5 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Through fall, Greenville is pleasantly warm: 72°F (22°C) by day, 54°F (12°C) after dark, and expect showers on roughly 25 days across the season.
Winter (December through February)
Through winter, Greenville is chilly: 54°F (12°C) by day, 37°F (3°C) after dark, and expect showers on roughly 30 days across the season.
Climate questions, answered
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Best time to visit Greenville
Aim for March to May and September to November if you get the choice: the dry season is running but the afternoons are still bearable, and highs average 71°F (22°C) against roughly 9 wet days a month. For the same question asked the other way round, see where else is warm in March.
Pack for Greenville with light clothing for the warm months, a warm jacket and layers for the cooler season and a compact umbrella or rain shell. July nights average 71°F (22°C), so evenings rarely match the afternoons.
Greenville temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.