Monticello climate

Typical historical weather for Monticello, 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 Monticello.

Annual average

10.5°C

across all months

Warmest month

31.5°C

Jul average high

Coolest month

-7.5°C

Jan average low

Annual rainfall

377mm

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

37.1°C

9 July 2021

Coldest day

-19.2°C

6 January 2017

Wettest day

34.5mm

11 October 2025

Windiest day

8.9m/s

5 May 2024