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1 Ιουλ 2022 · Recent warming within the Southwest has been among the most rapid in the United States, and models predict that the area's climate will continue to warm. The average annual temperature in most of the Southwest is predicted to rise 2.2° to 5.5°C (4° to 10°F) by 2100.
The southwestern United States features a semi-arid to arid climate, depending on the location. Much of the Southwest is an arid desert climate, but higher elevations in the mountains in each state, with the exception of West Texas, feature alpine climates with very large amounts of snow.
The Southwest has a hot desert climate, at lower elevations. Cities like Phoenix, Las Vegas, Yuma, and Palm Springs have average highs over 100 °F (38 °C) during the summer months and lows in the 70s or even 80s. In winter, daily temperatures in the southwest are cooler with highs in the 50s and 60s F, and lows in the 40s F.
2 Νοε 2023 · The American Southwest might evoke images of a hot, dry landscape—a land of rock, canyons, and deserts baked by the sun. Indeed, much of this region has low annual rainfall and seasonally high temperatures that contribute to its characteristic desert climate.
The Southwest is the hottest and driest region in the United States, where the availability of water has defined its landscapes, history of human settlement, and modern economy. Climate changes pose challenges for an already parched region that is expected to get hotter and, in its southern half, significantly drier.
7 Σεπ 2016 · The climate of the Southwest is already changing in ways that can be attributed to human-caused emissions of greenhouse gases. These changes include warmer average daily temperatures, unusually severe drought relative to droughts of the last century, and flows in the four major drainages that are lower than their twentieth century average flows.
14 Αυγ 2017 · The climate of the Southwest is most influenced by its geographic location between the mid-latitude and subtropical atmospheric circulation regimes. This positioning leads to year-round warm temperatures, low annual precipitation, and clear skies.
