Climate almanac
Lancaster
Massachusetts, United States · 42.46°, -71.67°
What is the climate like in Lancaster?
The best time to visit Lancaster is typically June, the year's most comfortable month (6.7/10). Lancaster is warmest in July, when daily highs average 83°F (29°C), and coolest in January, when lows fall to about 22°F (-5°C). The wettest month is typically December and the driest is November; the year sees roughly 49 in (1237 mm) of precipitation.
- Best time to visitJune — the year's comfort peak (6.7/10)
- Warmest monthJuly — average high 83°F (29°C)
- Coolest monthJanuary — average low 22°F (-5°C)
- Wettest monthDecember (5.1 in (128 mm))
- Driest monthNovember (3.3 in (85 mm))
- Annual precipitation49 in (1237 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromFitchburg Muni AP, 13 km away (1997-2026)