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Saint Marys climate
Typical historical weather for Saint Marys, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Saint Marys.
Annual average
9.3°C
across all months
Warmest month
26.3°C
Jul average high
Coolest month
-7.2°C
Jan average low
Annual rainfall
1255mm
total per year
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
● Avg high● Avg low▮ Rainfall
Records on file
Hottest day
33.1°C
6 July 2020
Coldest day
-27.3°C
22 January 2025
Wettest day
78.2mm
9 August 2024
Windiest day
7.9m/s
4 April 2018
See the detail: Saint Marys on 9 August 2024.