Where is it 70 degrees year-round in the U.S.? While temperatures fluctuate throughout the year in most U.S. states, there are few states with warm weather that see averages around 70-degree weather year-round. These states include Arizona, California, Hawaii, Nevada, and New Mexico.

The simplest way to describe climate is to look at average temperature and precipitation over time. Other useful elements for describing climate include the type and the timing of precipitation, amount of sunshine, average wind speeds and directions, number of days above freezing, weather extremes, and local geography.

These include hot, dry deserts in the Basin and Range, a Mediterranean climate (a climate with dry summers and relatively warm, wet winters) along the southern Pacific Border, and rainforests in the northern Pacific Border. Even individual states can have tremendous climate diversity.

Similarly to San Diego, Santa Barbara has a Mediterranean climate, featuring mild, wet winters and warm, dry summers. Generally, residents can enjoy outdoor activities all year-round as a result of this climate.