Saint Marys

What is the climate like in Saint Marys?

The best time to visit Saint Marys is typically August – September, with trip comfort peaking in September (7.4/10). Saint Marys is warmest in July, when daily highs average 84°F (29°C), and coolest in January, when lows fall to about 24°F (-5°C). The wettest month is typically May and the driest is September; the year sees roughly 43 in (1096 mm) of precipitation.

• Best time to visitAugust – September — comfort peaks in September (7.4/10)
• Warmest monthJuly — average high 84°F (29°C)
• Coolest monthJanuary — average low 24°F (-5°C)
• Wettest monthMay (4.9 in (124 mm))
• Driest monthSeptember (2.6 in (66 mm))
• Annual precipitation43 in (1096 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCelina 3 Ne, 13 km away (1956-2026)