Centralia (WA) Temperature by Month
The average annual maximum temperature in Centralia, Washington State, United States of America is 16°C (61°F), with daytime highs ranging from 7°C (45°F) in December to 26°C (79°F) in August. This page covers monthly averages, day-night differences, and how Centralia compares to cities worldwide.
Centralia Monthly Temperatures
In Centralia, temperatures can shift dramatically between warm in summer and cold in winter. Nights follow the same pattern, with lows ranging from 12°C (54°F) in August to 1°C (34°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Centralia by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. August, the warmest month, sees 277 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Centralia 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.
very warm
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moderate
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Centralia vs World: Temperature Compared
Centralia's average annual maximum temperature is 16°C (61°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
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 Centralia's weather — including monthly rainfall, sunshine hours, and humidity — visit our Centralia climate page.
