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Saint Johns climate
Typical historical weather for Saint Johns, 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 Johns.
Annual average
13.6°C
across all months
Warmest month
31.5°C
Jul average high
Coolest month
-4.4°C
Jan average low
Annual rainfall
229mm
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
37.7°C
15 July 2023
Coldest day
-21.1°C
30 December 2018
Wettest day
30mm
13 October 2025
Windiest day
10.5m/s
22 February 2023
See the detail: Saint Johns on 13 October 2025.