Clark County Climate and Average Weather
Climate of Clark County: average temperatures, rainfall and seasons month by month.
Climate in Clark County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 59° | 38° | 0,3 in | ★★★★☆ |
| February | 66° | 44° | 1,0 in | ★★★★☆ |
| March | 75° | 51° | 0,4 in | ★★★★★ |
| April | 81° | 56° | 0,1 in | ★★★★★ |
| May | 91° | 65° | 0,2 in | ★★★★★ |
| June | 104° | 77° | 0,2 in | ★★★★☆ |
| July | 108° | 82° | 0,1 in | ★★★★☆ |
| August | 104° | 79° | 0,9 in | ★★★★☆ |
| September | 95° | 72° | 0,6 in | ★★★★☆ |
| October | 85° | 61° | 0,3 in | ★★★★★ |
| November | 67° | 47° | 0,8 in | ★★★★☆ |
| December | 62° | 42° | 0,4 in | ★★★★☆ |
Climate type: Semi-arid. Source: Open-Meteo archive (ERA5).
Recent extremes in Clark County
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Clark County compares with nearby places
Annual averages, and the difference against Clark County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Las Vegas | 0 mi | 71°F | about the same | 5 in |
| Area Code 702 | 0 mi | 71°F | about the same | 5 in |
| ZIP Code 89109 | 3 mi | 71°F | about the same | 5 in |
| Las Vegas Strip | 4 mi | 71°F | about the same | 5 in |
| Harry Reid International Airport | 6 mi | 71°F | about the same | 6 in |
Best time to visit Clark County
Go in March, April, May and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, July and August - expect the least comfortable mix of heat, cold or rain.
What this means for Clark County
Today is slightly warmer than average for August. The forecast high of 109°F is 5.2°F above the 104°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 80°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- Avoid long hikes after mid-morning; start at dawn or leave it for a cooler day.
- If your dates are flexible, avoid January, July and August - historically the least comfortable months here.
Summary
Clark County is a county in Nevada. Clark County is a county in the United States. It has a population of about 2.3 million.
Right now it is 100°F (38°C) in Clark County with clear. It feels like 95°F. Today runs from 87°F to 109°F. Chance of precipitation is 1%. Sightseeing conditions score 7.5/10 - good conditions.
The best time to visit Clark County is March, April, May and October. The climate is semi-arid. January, July and August tend to be the least comfortable months. July is the warmest month with average highs near 108°F, while January is the coldest with lows near 38°F.
The closest major airport is Harry Reid International Airport (LAS), about 6 mi away. Nearby highlights include Las Vegas Strip, Valley of Fire State Park, Lake Mead and Death Valley National Park.
In plain terms. Today is slightly warmer than average for August. The forecast high of 109°F is 5.2°F above the 104°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Clark County today at 10/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Clark County
| Type | County |
|---|---|
| State | Nevada |
| Country | United States |
| Continent | North America |
| Coordinates | 36°10′11.6″N 115°8′23.3″W (36.1699, -115.1398) |
| Population | 2.320.000 |
| Local time | 8:08 AM (UTC-07:00) |
| Best months | March, April, May and October |
| Climate | Semi-arid |
Weather map for Clark County
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Clark County
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Clark County?
Clark County is a county in Nevada. Its coordinates are 36.1699, -115.1398. It lies in North America.
What is the weather like in Clark County right now?
It is currently 100°F (38°C) with clear. Humidity is 13% and wind is 8 mph.
When is the best time to visit Clark County?
March, April, May and October offer the most comfortable conditions in Clark County, which has a semi-arid climate. January, July and August are usually the hardest months for outdoor plans.
What time zone is Clark County in?
Clark County observes America/Los_Angeles (UTC-07:00). The local time is 8:08 AM.
How many people live in Clark County?
Clark County has a population of approximately 2.3 million.
What is the nearest airport to Clark County?
The closest airports are Harry Reid International Airport (LAS), 6 mi away, Los Angeles International Airport (LAX), 241 mi away and Phoenix Sky Harbor International Airport (PHX), 259 mi away.
What are the top things to do in Clark County?
Popular options include Las Vegas Strip, Valley of Fire State Park, Lake Mead, Death Valley National Park, Havasu Falls and Zion National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 8:08 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
