Washington (PA) Temperatures: Monthly Averages and Year-Round Insights

On this page, we’ll explore Washington’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in the United States of America.

Monthly Temperature Averages

The climate in Washington is known for significant temperature differences throughout the year. Typically, maximum daytime temperatures range from a warm 28°C in July to a cold 2°C in the coolest month, February. Nights are cooler, with temperatures generally dropping to -8°C, particularly during the colder months.

The chart below illustrates the average maximum day and minimum night temperatures in Washington by month:

Typically, the coolest time of day is between 4 AM and 6 AM, while the hottest time occurs around 3 PM, when the sun’s heating effect is strongest. July, the city’s warmest month, experiences 255 hours of sunshine.

The chart below shows the average temperature throughout the year:

February, the city’s coldest month, receives about 59 mm of rainfall spread over roughly 14 days. For more information, please visit our Washington Precipitation page.

Annual Temperatures in the United States of America Compared

The map below shows the annual temperature across the United States of America. You can also select the different months in case you are interested in a specific month.

Annual

Annual

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Legend

very warm

warm

pleasant

moderate

cold

very cold

Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

Washington Temperatures Compared World Wide

Washington’s average annual maximum temperature is 16°C. Let’s compare this with some popular tourist destinations:

Seville, Spain, stands out with its warm Mediterranean climate and an average annual temperature of 23°C.

In contrast, in Zermatt, Switzerland, the average annual temperature is significantly lower at 4°C, with mild summers and very cold winters.

Meanwhile, New York City, USA, experiences a more pronounced seasonal variation with an average annual temperature of 17°C.

In Brisbane, Australia, the average annual temperature is 26°C, making it warmer than Sydney.

How does the temperature feel?

Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.

On the other hand, in cooler months, especially when temperatures dip below 10°C, high humidity can intensify the cold. This makes the air feel much colder than it really is.

In Washington, during the coolest month, February, you will experience 67% humidity, which is considered high. This is accompanied by an average maximum temperature of 2°C. In the warmest month, July, the humidity is 69% combined with an average maximum temperature of 28°C, which creates a high-feel temperature. Explore our detailed page on humidity levels for further details.

How are these Temperatures Measured?

Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.

This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.

Sea vs. Land Temperatures

The influence of nearby oceans or large water bodies significantly affects local temperatures:

Ocean Influence: Coastal regions tend to have more stable temperatures, as large bodies of water absorb and release heat slowly. This often results in milder winters and cooler summers compared to inland areas.
Continental Climates: Landmasses well away from large bodies of water tend to show greater extremes in temperature, having hotter summers and colder winters because of the absence of water as a moderating influence.

For more detailed information about Washington’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Washington climate page.