Summer Temp & Precip Trends
Tendencias de Temperatura y Precipitación en Verano
Jun 17, 2015
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Meteorological summer (June, July, and August) is already underway, but this Sunday (12:39pm ET) marks the beginning of astronomical summer. And nationwide, summers are getting hotter as greenhouse gases continue to climb.
In this analysis, we look at temperature trends across the contiguous U.S. during meteorological summer. In all of the NCEI (formerly NCDC) climate regions, there has been a warming trend since 1970. However, within those regions are smaller climate divisions where we see a more varied rate of warming. For example, in the Northern Rockies and Plains Region, a few divisions have shown a slight cooling since 1970 while others have warmed as much as 1.99°F — leading to an overall warming for the region. Nationwide, the most dramatic warming is evident in parts of the East Coast and the Southwest where temperatures in some of those divisions have risen more than 3°F since 1970.
This serves as a reminder that even in an overall warming world, not all locations will warm uniformly.
For example, despite the 5-year drought that was recently busted in Oklahoma, most of that state has an upward trend in summer rainfall, further indicating the feast or famine that can come with rainfall in the Plains. Summer is also the rainy season in Florida, and parts of Central Florida have seen an increase of 0.4” in summer rainfall per decade since 1970.
May 31, 2017
Summers are getting hotter across most of the country.
Jul 13, 2016
Extreme heat is the clearest indicator of global warming.
May 3, 2017
A new Climate Central analysis shows an upward trend in the number of heavy precipitation events in the vast majority of the Lower 48 states since 1950.