Historic March Heat Wave Smashed Records From California To The East

110 Degrees In March? Where It Happened

The most prolific March warmth wave in at the least 14 years smashed month-to-month data in over 180 cities from the Southwest to the Plains and East, might have set new statewide March data in 16 states, and obliterated a nationwide March warmth file that stood for over 70 years.

This occasion’s depth and longevity can be lengthy remembered by meteorologists as essentially the most important early-spring warmth wave for the reason that March 2012 event smashed hundreds of records in the nation’s mid-section.

It began in earnest with the primary March warmth data within the West on March 16 and 17, and continued in waves for 11 days by way of March 26, finally spreading its March data as far east as Pennsylvania and South Carolina.

New US March Heat Record

Before this warmth wave, the most well liked March temperature on file anyplace within the US had been 108 levels in Rio Grande City, Texas, on March 30, 1954, and on March 14, 1902.

But at the least one location within the US tied or exceeded that March nationwide file 5 separate days from March 18-21 and March 25.

On March 20, 4 reporting stations within the decrease deserts of southeast California and southwest Arizona hit 112 levels, proven on the map beneath. You cannot make it up that one among these stations was close to the city of Winterhaven.

These highs have been just one diploma shy of tying the April US file excessive set at Death Valley, California, in line with climate historian Christopher Burt. And that occurred in late April — April 22, 2012 and April 24, 1946.

March Statewide Records

It additionally seems that the statewide data for the most well liked March temperatures have been both tied or damaged in 16 states, in line with world climate data professional, Maximiliano Herrera.

We touched on the California and Arizona data above (112 levels) as nationwide data, however the different state data that seem to have been tied or set embrace:

• Texas: 108 levels
• Nevada: 106 levels
• Oklahoma: 106 levels
• Kansas: 104 levels
• New Mexico: 103 levels
• Colorado and Nebraska: 99 levels
• Utah: 98 levels
• Missouri and South Dakota: 97 levels
• Iowa: 96 levels
• Wyoming: 90 levels
• Minnesota: 88 levels
• Idaho: 86 levels

Kansas, New Mexico and Utah seem to have tied or set their new March file three completely different days in the course of the warmth wave.

For greater state or nationwide data like these, an advert hoc committee of meteorologists and climatologists is often agreed to look at the information and the reporting station earlier than it turns into a brand new, official file.

City March Records

Over 180 places with information for the reason that Nineteen Sixties or earlier have tied or set new March data from California to Pennsylvania to South Carolina throughout this warmth wave.

Phoenix solely had one March day of triple digit warmth on file previous to this warmth wave. They hit the 100s eight days in a row from March 18-25, topping out at 105 levels on March 20 and 21. Incredibly, that is equal to their April month-to-month file, which was set nearly a month later within the calendar on three dates starting from April 20-29 in three previous years.

Las Vegas tied or set their new March file 9 days in a row from March 18-26. They completed out at 98 degrees on March 255 levels hotter than their March file previous to this warmth wave. That’s their common excessive on June 11.

Flagstaff did one higher, as they tied or set their March file 10 days in a row from St. Patrick’s Day by way of March 26.

Other main cities that tied or set new March data included San Francisco’s first March 90-degree excessive downtown, Salt Lake City (84 levels), Boise (83 levels), Denver (87 levels) and Albuquerque (91 levels).

But it wasn’t only a western warmth wave.

St. Louis additionally tied its April file on March 26, the afternoon of Opening Day of Major League Baseball because the Cardinals hosted the Tampa Bay Rays. The earliest in any yr St. Louis had beforehand reached 93 levels was April 10, 1930.

Perhaps essentially the most extraordinary file burst of warmth east of the Rockies occurred in Nebraska on March 21.

Both Lincoln and Omaha not solely demolished their March file, after reaching 97 levels in Lincoln and 96 in Omaha, but additionally tied their April data.

Speaking of Nebraska, Sidney, within the state’s western panhandle, not solely topped their March file excessive (92 levels), but additionally tied their April file set nearly one month later within the calendar (April 24, 2012).

Several of those cities reached the 70s, 80s, 90s, or 100s for the primary time in March of their recorded historical past, together with Butte, Montana (first 70s), Cheyenne, Wyoming (first 80s), Fayetteville, Arkansas (first 90s) and Borger, Texas (first 100s).

On the weekend of March 21 and 22, elements of the Plains have been as much as 45 degrees warmer than average.

It wasn’t nearly file highs.

Laramie, Wyoming, had its warmest every day low temperature on March 25 (43 levels) of any earlier day on file from November by way of April, in line with the National Weather Service. Laramie is at an elevation of seven,270 toes, nearly 2,000 toes larger than Denver.

Why So Hot So Soon?

The motive for this warmth wave specifically has to do with the ridge of excessive strain, also called a heat domethat was parked over the West.

This warmth dome is record-breaking for March, comparable in power to ones we see in June. You can see the final place of the excessive strain on the satellite tv for pc loop beneath within the darker shading.

Climate Change Role

Earth’s warming world seems to have its thumb on the size of this distinctive warmth wave.

According to an analysis by Climate Central, the extremity of this two-week warmth wave was made at the least 5 occasions extra possible by local weather change. Last week, higher-end values ​​of their Climate Shift Index used to estimate local weather change’s position on every day temperatures lined the largest area of ​​the country in their 57-year dataset.

Another analysis by World Weather Attribution concluded the magnitude of this March file heat was “virtually impossible without climate change.”

Climate Central additionally discovered that streaks of extreme heat such as this March heat wave are becoming more common. Their evaluation of 247 US cities discovered 80% of these cities now common two extra excessive warmth streaks per yr than they did within the Nineteen Seventies.

(MORE: Earth’s Climate Is ‘Out Of Balance’, WMO Finds)

Jonathan Erdman is a senior meteorologist at climate.com and has been masking nationwide and worldwide climate since 1996. Extreme and weird climate are his favourite matters. Reach out to him on Bluesky, X (formerly Twitter) and Facebook.