Best time to visit St. Marys, PA
A month-by-month travel weather guide based on NOAA 30-year climate normals.
The most comfortable travel window in St. Marys runs from May through September — 5 months of pleasant temperatures and modest rainfall.
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 9h 19m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 10h 24m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 11h 43m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 13h 7m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 20m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 57m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 43m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 13h 40m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 12h 16m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 10h 51m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 9h 37m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 9h 1m
Looking for similar climates? See St. Marys's climate twins. Or jump straight to the full climate profile.