Grafton climate

Typical historical weather for Grafton, 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 Grafton.

Annual average

5°C

across all months

Warmest month

26.8°C

Jul average high

Coolest month

-17°C

Feb average low

Annual rainfall

602mm

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

41.8°C

4 June 2021

Coldest day

-37.8°C

30 January 2019

Wettest day

59.6mm

21 June 2025

Windiest day

12.2m/s

14 March 2019