Clark County Climate
Clark County, Nevada
Avg Annual Temp
66.8°F
Annual Precip
6.9"
Annual Snowfall
8.0"
Extreme Heat Days
131.3125
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Clark County Weather
Far warmer than the national average
Clark County averages a warm 66.8°F annually, which is nearly 14 degrees higher than the national median. This subtropical desert climate is defined by its intense solar exposure and low humidity.
Nevada’s heat leader
As the hottest county in the state, Clark’s 66.8°F average towers over the Nevada state average of 52.0°F. It represents the extreme southern end of the state's climate spectrum.
Hotter than the central deserts
Clark is significantly warmer than Esmeralda County to the north, which averages just 53.4°F. While both are dry, Clark's summer intensity is unmatched in the region.
Extreme heat dominates the calendar
The county endures a staggering 131 days per year above 90°F. July is particularly intense with an average temperature of 89.4°F, while winters remain mild and mostly snow-free.
Climate control is a necessity
High-performance HVAC systems are critical for managing over four months of extreme heat. Residents must prioritize hydration and sun protection during the long, 131-day hot season.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.