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A Very, Very Hot June

a01_jd_30june_heat
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Copyright © 2012 Albuquerque Journal

The heat has been relentless.

Overnight low temperatures in June have been the warmest in Albuquerque history, according to the National Weather Service, and daytime highs have not been far behind.

As a result, the month ending today is likely to go into the record books as the second-hottest June in a century of Albuquerque weather records, according to Deirdre Kann of the National Weather Service. Daytime highs have averaged 94.6 degrees, 5 degrees above the long-term average. Nighttime lows have averaged 65.8 degrees, more than 6 degrees above the long-term average.

With a high of 100 forecast for today at the city’s official airport weather station to finish off the month, June will have seen 28 days above 90, according to Kann, tying a record for that mark.

The last day in the city that was cooler than average was May 28.

The data are consistent with a long-term warming trend scientists have linked to rising greenhouse gases, though Kann said aerosols in the atmosphere from forest fire smoke could also have contributed a heat-trapping effect that inhibits overnight cooling.

Only one June since 2000 has been cooler than the long-term average.

Early July often offers a break from the heat when the summer monsoon rains arrive, but it’s not yet clear when that might happen, Kann said Friday. The rains, fueled by moisture from Mexico, arrive on average in Albuquerque around July 7, but the onset date varies from year to year.

The early signs of the pattern are under way. “We’re seeing moisture coming from Mexico,” Kann said. Monsoon conditions are especially noticeable in southern Arizona. But not enough moisture is making it to New Mexico yet for the widespread thunderstorms that characterize a full-fledged monsoon pattern, Kann said.
— This article appeared on page A1 of the Albuquerque Journal

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