Monticello Weather & Climate: Best Time to Visit

In Monticello, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 28°C (82°F) in August. In February, the coolest month of the year, temperatures drop to a moderate 12°C (54°F).

At night, temperatures range from around 21°C (70°F) in August to 6°C (43°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Monticello receives a reasonable amount of rainfall, with an annual precipitation of 725 mm (29 in). Monticello can be quite wet during November, receiving approximately 109 mm (4.3 in) of precipitation over 13 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 16 mm (0.6 in) of precipitation spread across 4 rainy days days. For more details, please visit our Monticello Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Monticello can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.5 hours of sunshine daily. In contrast, the city experiences much darker days in November, with only 4.4 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Monticello.

The city experiences its highest humidity in May, reaching 76%. In July, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year