Monroeville (PA) Weather & Climate: Best Time to Visit

The climate in Monroeville is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in July to a chilly 2°C (36°F) in the coolest month, January.

Nights vary from 17°C (63°F) in July to around -7°C (19°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Monroeville has a notably wet climate with abundant precipitation, recording 1128 mm (44 in) of rain/snowfall per year. The climate in Monroeville shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 142 mm (5.6 in) of precipitation over 15 rainy days.

In contrast, the driest month February offers drier and sunnier days, with around 65 mm (2.6 in) of snow/rainfall over 15 snowy/rainy days. For more details, please visit our Monroeville Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Monroeville serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 8.5 hours of sunshine daily, and embrace the darker days in December, offering only 2.4 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Monroeville.

The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year