<P> 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 60s . In winter, daily temperatures in the southwest are cooler with highs in the 50s and 60s F, and lows in the 40s F. Northern Arizona and New Mexico, central and northern Nevada and most of Utah (outside higher mountain areas) have a semi-desert climate, but with colder and snowier winters than points south due to higher elevations . As in other desert climates, the dry air results in large differences (sometimes over 40 F) between daytime high and nighttime low temperatures . </P> <P> The coast of California has a Mediterranean climate . Daily high temperatures range from 70 to 80 ° F (21 to 27 ° C) in the summer to 50 to 65 ° F (10 to 16 ° C) in winter, with low temperatures from the 60 ° F (16 ° C) s in summer to the mid 40s F in winter . (citation needed). Like most Mediterranean climates, much of coastal California has a wet winter and dry summer . Early summers can often bring cool, overcast weather (fog and low stratus clouds) to coastal California . As such, the warmest summer weather is delayed until August, even September in many areas of the California coast; on average, September is the warmest month in San Francisco, CA . Upwelling of cold Pacific waters also contributes to the frequent cool spring and early summer weather in coastal California . In California's inland river valleys (Bakersfield, Sacramento areas), the wet - winter, dry - summer pattern remains, but winters are cooler and more prone to occasional frost or freeze, while summers are much hotter, with blazing sunshine and daytime high temperatures not uncommonly in the 90s ° F to over 100 ° F (38 ° C). </P> <P> The Gulf and South Atlantic states have a humid subtropical climate with mostly mild winters and hot, humid summers . Most of the Florida peninsula including Tampa and Jacksonville, along with other coastal cities like Houston, New Orleans, Savannah, Charleston and Wilmington all have average summer highs in the lower 90s F, and lows generally from 70 to 75 ° F (21 to 24 ° C); combined with moist tropical air, this creates the sultry summer weather conditions typical found here . In the interior South, in cities like Raleigh, NC, Atlanta, Birmingham, AL, Nashville TN, San Antonio, TX, and Jackson, average summer highs and lows are similar to coastal areas, while some areas of interior eastern Texas having highs in the upper 90s F. In winter, average daily high temperatures range from the 40 ° F (4 ° C) s (upper South: northern Arkansas, Kentucky and Virginia), to the 60 ° F (16 ° C) s along the Gulf Coast and South Atlantic coast (Charleston southward), with 70 ° F (21 ° C) s in central and southern Florida and far southern Texas . Average daily lows in winter range from 20 ° F (− 7 ° C) s north to 40 ° F (4 ° C) s along the Gulf and far South Atlantic coasts, with 50 ° F (10 ° C) s in Florida and coastal south Texas . </P> <P> Southern Florida has a tropical climate, with all months having a mean temperature of higher than 65 ° F (18 ° C), a wet season from May through October, and a dry season from November through April . In cities like Fort Lauderdale, Miami, Key West, Naples, and Palm Beach average daily highs range from the mid 70 ° F (21 ° C) s in winter to the upper 80 ° F (32 ° C) s in summer . Average overnight lows range from the upper 50 ° F (10 ° C) s in winter to the mid and upper 70 ° F (21 ° C) s in summer . Southern Florida is the warmest region of the US mainland in winter . </P>

List nine kinds of climates found in the united states