Pasco (WA) Temperature by Month
Pasco in Washington State, United States of America sees significant seasonal temperature differences, with daytime highs between 5°C (41°F) in December and 33°C (91°F) in July, averaging 19°C (66°F) annually. Explore the full monthly breakdown below.
Pasco Monthly Temperatures
The weather in Pasco experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 16°C (61°F) in July to -3°C (27°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Pasco by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Pasco vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Pasco vs World: Temperature Compared
Pasco's average annual maximum temperature is 19°C (66°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Pasco's weather — including monthly rainfall, sunshine hours, and humidity — visit our Pasco climate page.
