Randalstown

What is the climate like in Randalstown?

The best time to visit Randalstown is typically May, the year's most comfortable month (5.8/10). Randalstown is warmest in July, when daily highs average 65°F (18°C), and coolest in January, when lows fall to about 38°F (3°C). The wettest month is typically August and the driest is April; the year sees roughly 37 in (952 mm) of precipitation.

• Best time to visitMay — the year's comfort peak (5.8/10)
• Warmest monthJuly — average high 65°F (18°C)
• Coolest monthJanuary — average low 38°F (3°C)
• Wettest monthAugust (3.9 in (100 mm))
• Driest monthApril (2.5 in (62 mm))
• Annual precipitation37 in (952 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromAldergrove, 12 km away (1939-2025)