West Middlesex (PA) Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit West Middlesex.

Climate overview of West Middlesex

West Middlesex, Pennsylvania, United States of America, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and January dropping to 2°C (36°F).

With around 1091 mm (43 in) of annual rain/snowfall, West Middlesex has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and very cold winters. The wettest month is June.

West Middlesex Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in West Middlesex - and find the best time to visit.

Monthly Temperature in West Middlesex

Visitors to West Middlesex can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 29°C (84°F) in July. In January, the coolest month of the year, temperatures drop to a very cold 2°C (36°F).

At night, temperatures range from around 16°C (61°F) in July to -9°C (16°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in West Middlesex

West Middlesex is known for its substantial rain/snowfall, with annual precipitation reaching 1091 mm (43 in). West Middlesex experiences moderate seasonal variation in rainfall, with monthly averages ranging from 119 mm (4.7 in) in June, the wettest month, and 65 mm (2.6 in) in November, the driest month. For more details, please visit our West Middlesex Precipitation page.

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

Best Time to Visit West Middlesex

West Middlesex is at its best in May and September, offering the year's most agreeable weather for a visit. January, February, March and December are typically the least favourable.

Each month is rated for comfortable sightseeing weather — mild temperatures and low rainfall. Tap a month for its full averages; your ideal time may differ for a beach or winter trip (see below).

  • Best overall: May and September
  • Warmest weather: July and August
  • Fewest rainy days: March, August, September and November
  • Climate seasons: warm summers and very cold winters
  • Best for winter weather: January, with freezing nights around -9°C (16°F).

Frequently asked questions about the climate in West Middlesex

What is the best time to visit West Middlesex?

May and September typically offer the most optimal weather in West Middlesex. In contrast, January, February, March and December tend to have less optimal conditions. West Middlesex has warm summers and very cold winters.

What temperatures can I expect in West Middlesex?

Daytime highs range from 2°C (36°F) in January to 29°C (84°F) in July. Nighttime lows range from -9°C (16°F) to 16°C (61°F). Temperatures vary considerably through the year.

How much rain does West Middlesex get?

Annual rainfall is around 1091 mm (43 in). June is the wettest month with 119 mm (4.7 in), while November is the driest with 65 mm (2.6 in).

West Middlesex 3-Day Forecast

West Middlesex (PA) 3-Day Forecast

West Middlesex on the map

West Middlesex is highlighted - select any city to see its climate.

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Where to go in July - average daytime high across popular destinations.

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