Climate in Mesa

Mesa, United States has a desert climate. The annual average temperature is about 22.5°C and the city receives roughly 121 mm of precipitation across 11 rainy days a year, with around 3631 hours of sunshine. The warmest month is Jul (highs near 36.9°C) and the coldest is Jan (lows near 8.1°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Mesa is classified as Desert. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Mesa receives about 121 mm of precipitation a year over roughly 11 rainy days. The wettest month is Jan and the driest is Jul.

Mesa sees an estimated 3631 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Mesa are Jan, Feb, Dec. Conditions vary year to year — verify with a current forecast before booking.

Mesa has a climate comfort score of 63/100, a comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.

• Climate in Phoenix — Desert, comfort 63/100
• Climate in Tucson — Desert, comfort 57/100
• Climate in Las Vegas — Desert, comfort 63/100