Joshua Tree (CA) Temperature by Month
The average annual maximum temperature in Joshua Tree, California, United States of America is 26°C (79°F), with daytime highs ranging from 15°C (59°F) in December to 37°C (99°F) in July. This page covers monthly averages, day-night differences, and how Joshua Tree compares to cities worldwide.
Joshua Tree Monthly Temperatures
The climate in Joshua Tree is dynamic, ranging widely from moderate in winter to very hot in summer. Nights are significantly colder, with lows dropping from 22°C (72°F) in July to 2°C (36°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Joshua Tree 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: Joshua Tree 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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Joshua Tree vs World: Temperature Compared
Joshua Tree's average annual maximum temperature is 26°C (79°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Joshua Tree's weather — including monthly rainfall, sunshine hours, and humidity — visit our Joshua Tree climate page.
