Lancaster, South Carolina Weather
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Climate of Lancaster: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Lancaster, with average daytime highs around 34°C. January is the coolest, when nights typically fall to about 0°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 34°C, so the seasons feel very different from each other.
The area receives about 1120 mm of rain in a typical year. Most of it falls from June to August and December, and July is the wettest month at roughly 109 mm.
For outdoor plans and travel, April to May and September to October usually offer the most comfortable weather in Lancaster, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 11° | 0° | 80 mm | 80% |
| Feb | 13° | 2° | 86 mm | 80% |
| Mar | 18° | 5° | 95 mm | 78% |
| Apr | 23° | 10° | 80 mm | 74% |
| May | 28° | 15° | 97 mm | 71% |
| Jun | 32° | 20° | 105 mm | 69% |
| Jul | 34° | 22° | 109 mm | 68% |
| Aug | 33° | 21° | 108 mm | 71% |
| Sep | 30° | 18° | 94 mm | 71% |
| Oct | 24° | 11° | 80 mm | 73% |
| Nov | 18° | 5° | 81 mm | 73% |
| Dec | 13° | 2° | 109 mm | 80% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Lancaster. Values describe typical conditions, not a forecast.
About Lancaster weather
Lancaster is set in South Carolina's humid subtropical climate, coastal and low-lying for much of the state, about 84 km north of Columbia. Summers bring hot, humid summers (June–August) with highs commonly in the low-to-mid 30s°C. The year winds down with mild winters (December–February), rarely dropping below freezing near the coast. This page shows live, auto-refreshing weather for Lancaster: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Lancaster is about 84 km north of Columbia, in South Carolina.
Lancaster sees mild winters (December–February), rarely dropping below freezing near the coast.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Lancaster's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Lancaster, with average daytime highs of about 34°C and nights around 22°C.
The coldest nights come in January, when the average low is about 0°C and daytime highs reach around 11°C. Frost is possible on clear, calm nights.
Lancaster receives about 1120 mm of rain in a typical year. July is the wettest month at roughly 109 mm, and the main rainy period is June to August and December.
April to May and September to October usually offer the most comfortable weather in Lancaster, with mild daytime temperatures and little rain.
In November Lancaster typically sees daytime highs near 18°C and lows near 5°C, with about 81 mm of rain over the month and average humidity around 73%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Lancaster is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Lancaster's day-to-day weather follows the broader pattern of South Carolina described above. See the hourly weather forecast or the air quality index for more detail.