Westley (CA) Temperature by Month
The average annual maximum temperature in Westley, California, United States of America is 24°C (75°F), with daytime highs ranging from 14°C (57°F) in January to 35°C (95°F) in July. This page covers monthly averages, day-night differences, and how Westley compares to cities worldwide.
Westley Monthly Temperatures
Depending on the time of the year, temperatures range from very warm to mild in Westley. At night, minimum temperatures range from 16°C (61°F) in July to 3°C (37°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Westley by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Westley 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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very cold
Westley vs World: Temperature Compared
Westley's average annual maximum temperature is 24°C (75°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
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 Westley's weather — including monthly rainfall, sunshine hours, and humidity — visit our Westley climate page.
