Street Trees Cool Las Vegas Urban Heat

Street trees in Las Vegas reduce nighttime air temperature by up to 1.5°C but have little daytime cooling due to limited transpiration in arid conditions.

Using high-transpiration tree species like Cherry can increase daytime cooling by about 0.4°C but requires more irrigation water.

Tree shade intercepts solar radiation and lowers mean radiant temperature by up to 16°C, significantly improving outdoor thermal comfort.

Increased tree cover reduces heat stress indices, lowering the frequency of extreme heat stress hours.

The cooling effectiveness of street trees varies by species, planting strategy, and urban context, requiring site-specific evaluation.