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Las Vegas Mccarran, NV Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →

30-year climate normals from 1 weather station (1991-2020).

Las Vegas Mccarran, Nevada has an average annual temperature of 70°F and a climate comfort score of 72/100 (Good). Annual precipitation totals 4.2". Based on NOAA 30-year normals (1991–2020).

Avg Temperature

70°F (21°C)

Avg High

81°F

Avg Low

60°F

Annual Precip

4.2"

Annual Snow

0.2"

Comfort Score

72/100

Good

Climate Comfort Score

72/100

Good

Avg Annual Temperature

70°F

30-year mean (NOAA NCEI)

Annual Precipitation

4.2"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Las Vegas Mccarran) 72.0%
National median (≈55)

PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Las Vegas Mccarran area.

Warming context for Las Vegas Mccarran

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Las Vegas Mccarran captures average conditions across the spread shown — the most recent decade is warmer than the 30-year mean.

Warming context — U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 59°F (15°C) 41°F (5°C) 50°F (10°C)
February 63°F (17°C) 44°F (7°C) 54°F (12°C)
March 71°F (22°C) 51°F (10°C) 61°F (16°C)
April 79°F (26°C) 57°F (14°C) 68°F (20°C)
May 89°F (31°C) 66°F (19°C) 77°F (25°C)
June 99°F (37°C) 76°F (24°C) 88°F (31°C)
July 105°F (40°C) 82°F (28°C) 93°F (34°C)
August 103°F (39°C) 81°F (27°C) 92°F (33°C)
September 95°F (35°C) 72°F (22°C) 84°F (29°C)
October 81°F (27°C) 60°F (15°C) 70°F (21°C)
November 67°F (19°C) 47°F (8°C) 57°F (14°C)
December 57°F (14°C) 40°F (4°C) 48°F (9°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 0.6"

3.1 days with precipitation

February 0.8"

4.1 days with precipitation

March 0.4"

2.8 days with precipitation

April 0.2"

1.6 days with precipitation

May 0.1"

1.1 days with precipitation

June 0.0"

0.4 days with precipitation

July 0.4"

2.5 days with precipitation

August 0.3"

2.2 days with precipitation

September 0.3"

1.8 days with precipitation

October 0.3"

1.7 days with precipitation

November 0.3"

1.5 days with precipitation

December 0.5"

Snow: 0.2"

3.0 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

December 15

50% probability date

Last Spring Freeze

January 20

50% probability date

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

1,836

Higher = more heating needed

Cooling Degree Days

3,720

Higher = more cooling needed

Warmest Month

July

Coldest Month

December

Humidity & Wind

Monthly averages from hourly observations

Month Humidity Wind (mph)
January 39% 6.5
February 35% 8.0
March 25% 9.7
April 19% 10.1
May 16% 9.7
June 14% 9.5
July 20% 8.3
August 21% 7.9
September 21% 7.2
October 28% 6.7
November 34% 6.6
December 40% 6.2

Related Data

Climate Guides

Climate Insight: Las Vegas Mccarran, NV

The NOAA 1991–2020 climate normals describe Las Vegas Mccarran, Nevada as a location with an annual average temperature of 70°F, ranging from a mean daily high of 81°F to a mean daily low of 60°F. July is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USW00023169, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Las Vegas Mccarran receives roughly 4.2 inches of precipitation each year, with seasonal snowfall possible. Growing-season length varies with elevation and microclimate, with the last spring freeze near January 20 and the first fall freeze near December 15. For energy use, 1,836 heating degree days and 3,720 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Las Vegas Mccarran scores 72/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for December-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Las Vegas Mccarran, NV?
The average annual temperature in Las Vegas Mccarran, Nevada is 70°F. The warmest month averages 105°F (40°C) and the coldest averages 40°F (4°C).
How much rain does Las Vegas Mccarran get?
Las Vegas Mccarran receives 4.2 inches of precipitation annually, including 0.2 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Las Vegas Mccarran?
Las Vegas Mccarran has a climate comfort score of 72/100 (Good). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Las Vegas Mccarran?
Growing season data is not available for Las Vegas Mccarran.
How much energy does heating and cooling require in Las Vegas Mccarran?
Las Vegas Mccarran has 1,836 heating degree days and 3,720 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Las Vegas Mccarran climate data come from?
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USW00023169. These 30-year averages are the standard reference for typical weather conditions.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00023169. For informational purposes only.

Related

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial