Shannon

What is the climate like in Shannon?

The best time to visit Shannon is typically July, the year's most comfortable month (6.2/10). Shannon is warmest in July, when daily highs average 74°F (23°C), and coolest in January, when lows fall to about 5°F (-15°C). The wettest month is typically June and the driest is January; the year sees roughly 61 in (1543 mm) of precipitation.

• Best time to visitJuly — the year's comfort peak (6.2/10)
• Warmest monthJuly — average high 74°F (23°C)
• Coolest monthJanuary — average low 5°F (-15°C)
• Wettest monthJune (6.7 in (171 mm))
• Driest monthJanuary (3.7 in (94 mm))
• Annual precipitation61 in (1543 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromQuebec/jean Lesage Intl, 13 km away (1992-2024)