Heat records topple as the West bakes

March 20, 2026

Title: Heat Records Shattered as Western United States Experiences Early-Season Heat Wave

The West Coast of the United States has been experiencing an early-season heat wave that has shattered numerous all-time temperature records in California and Arizona this week, with more regions expected to be affected in the coming days. Around 38 million people are currently under heat alerts across Southern California and the Desert Southwest as temperatures soar into the upper 90s and triple digits.

This unprecedented heat wave is being attributed to a sprawling heat dome that has remained parked over the West, causing summer-like conditions in March. On Thursday, Palm Springs, California hit an all-time record for the month of March with temperatures reaching 107 degrees Fahrenheit, breaking its previous record set on Wednesday at 105 degrees. The city of Indio in the Coachella Valley also broke a new high temperature record for March when it reached 108 degrees.

Across California, numerous daily records were broken as well, including readings of 95 degrees in Anaheim and 88 degrees in Sacramento on Wednesday. San Francisco and San Diego both recorded temperatures of 85 degrees. In Arizona's Yuma County, the community of Martinez Lake reached a jaw-dropping high of 110 degrees on Thursday, setting a new record for the highest March temperature in U.S. history according to the National Weather Service (NWS).

Phoenix experienced its earliest triple-digit day this year with temperatures reaching 102 degrees on Wednesday and climbing further to 104 degrees on Thursday. The city is forecasted to hit 106 degrees on Friday and Saturday, prompting an extreme heat warning that remains in effect through Sunday. Las Vegas also set a new March record of 95 degrees on Thursday.

The implications of this early-season heat wave are significant as it highlights the increasing frequency and intensity of weather events due to climate change. This event serves as a stark reminder for governments, businesses, and individuals alike about the urgent need to address global warming and take action towards reducing greenhouse gas emissions. As we continue to witness extreme weather conditions becoming more commonplace, it is crucial that we adapt our infrastructure, policies, and lifestyles accordingly in order to mitigate their impacts on society and the environment.

In conclusion, this unprecedented heat wave serves as a stark reminder of the urgent need for action against climate change. As temperatures continue to rise globally, it's essential that we take steps towards reducing our carbon footprint and adapting to these changing conditions in order to ensure a sustainable future for generations to come.

Source: [Original Article](https://www.nbcnews.com/weather/heat/heat-wave-record-temperatures-california-arizona-rcna264343) #heat

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