Climate by Place

Las Vegas, NV climate: monthly averages and frost dates

Las Vegas, NV has mild winters and very hot summers by this site's scale, with arid annual precipitation. The figures are the 1991–2020 climate normals for NOAA station USW00023169 (LAS VEGAS MCCARRAN AP), 12 mi (20 km) in a straight line from the city's center point (US Census).

Warmest month high
104.5°F
July
Coldest month mean
48.2°F
December
Precipitation
4.2 in
per year
Snowfall
0.2 in
per year
Median last frost
January 20
32°F, spring
Median first frost
December 15
32°F, autumn

Monthly averages in Las Vegas

Las Vegas, NV: normal high, low and precipitation by month Normal daily high and low by month and monthly precipitation for Las Vegas, NV. Highs peak in July at 104.5°F; the wettest month is February at 0.80 in. 20°F 40°F 60°F 80°F 100°F 120°F 32°F 58 63 71 78 88 99 104 103 95 81 67 57 40 44 50 57 66 76 82 81 72 60 47 40 1 in 0.6 0.8 0.4 0.2 0.1 0.0 0.4 0.3 0.3 0.3 0.3 0.5 J F M A M J J A S O N D Normal daily high Normal daily low Precipitation (in)
NOAA 1991–2020 monthly normals, station USW00023169. “–” means NOAA publishes no value.
MonthHigh °FLow °FMean °FPrecip. inSnow inDays ≥0.01 inDays ≥90°FNights ≤32°F
January 58.540.549.50.560.0 3.10.03.3
February 62.944.153.50.800.0 4.10.01.1
March 71.150.560.80.420.0 2.80.30.1
April 78.556.967.70.200.0 1.63.50.0
May 88.566.177.30.070.0 1.115.90.0
June 99.475.887.60.040.0 0.426.90.0
July 104.582.093.20.380.0 2.530.60.0
August 102.880.691.70.320.0 2.230.40.0
September 94.972.483.60.320.0 1.824.10.0
October 81.259.670.40.320.0 1.75.50.0
November 67.147.357.20.300.0 1.50.00.7
December 56.939.648.20.450.2 3.00.04.6
Year 80.559.670.14.180.2 25.8137.19.8

How cold is winter in Las Vegas?

Winters in Las Vegas are mild by this site's scale (coldest-month mean 45 to under 60°F). The coldest month is December, with a mean temperature of 48.2°F (9.0°C), a normal daily high of 56.9°F (13.8°C) and a normal daily low of 39.6°F (4.2°C).

The station averages 9.8 nights a year at or below 32°F.

How hot is summer in Las Vegas?

Summers in Las Vegas are very hot by this site's scale (hottest-month high 100°F or more). July has the highest normal daily high, 104.5°F (40.3°C), with nights averaging 82.0°F (27.8°C).

The high reaches 90°F or more on 137.1 days in a normal year.

The normal daily high itself is 90°F or above in June to September.

What is the wettest month in Las Vegas?

Las Vegas gets 4.18 in (106 mm) of precipitation in a normal year, which this site classes as arid (below 10 in a year). The wettest month is February with 0.80 in (20 mm); the driest is June with 0.04 in (1 mm).

Measurable precipitation (0.01 in or more) falls on 25.8 days a year.

Does it snow in Las Vegas?

Snow is rare in Las Vegas: the normal annual snowfall is 0.2 in (1 cm).

Which months are mild in Las Vegas?

4 months in Las Vegas meet this site's comfort thresholds (normal high 65–85°F, low 45°F or higher, fewer than 10 days with 0.10 in or more of precipitation): March, April, October and November.

Thresholds and their limits: methodology.

Frost dates and growing season in Las Vegas

In Las Vegas the median last spring night at or below 32°F is January 20, and the median first autumn one is December 15 (NOAA P50 dates). NOAA's median length of the freeze-free season is 333 days. NOAA takes that median over each year's own season, so it need not equal the 329 days between the two median dates.

There is still a 10% chance of a 32°F night on or after February 14, and a 10% chance that the first one has come by November 28.

The chance that the last spring 32°F night comes on or after December 20 is 90%.

32°F frost dates by probability (NOAA PRBLST, PRBFST, PRBGSL). The 50% row is the median. Season lengths are NOAA’s own percentiles of each year’s season, so they need not equal the gap between the two dates in the same row.
ChanceLast spring 32°F night on or afterFirst autumn 32°F night byFreeze-free season, days
10%February 14November 28360
20%February 6December 4351
30%February 1December 8343
40%January 26December 12338
50%January 20December 15333
60%January 14December 19327
70%January 7December 23318
80%December 31December 29310
90%December 20January 7299
Median (P50) dates at each temperature threshold NOAA publishes.
ThresholdMedian last date (spring)Median first date (autumn or winter)Median season, days
36°F February 11December 3293
32°F January 20December 15333
28°F No such night in most years, though a few years have one; no typical season to show
24°F No such night in a typical year (NOAA publishes no dates)
20°F No such night in a typical year (NOAA publishes no dates)
16°F No such night in a typical year (NOAA publishes no dates)
Chance of at least one night at or below 32°F in the month (NOAA MLY-TMIN-PRBOCC-LSTH032).
JanFebMarAprMayJunJulAugSepOctNovDec
66%29%1%0%0%0%0%0%0%0%12%75%

Nearby and similar places

Of the places on this site, the closest to Las Vegas by station distance are Los Angeles, CA at 235 mi (378 km), Phoenix, AZ at 256 mi (412 km) and San Diego, CA at 258 mi (415 km).

Among places whose winter, summer and precipitation words are each within one band of Las Vegas's (winter: mild, summer: very hot, precipitation: arid), the closest monthly temperature and precipitation patterns are Phoenix, AZ, Tucson, AZ and Albuquerque, NM.

Compared with Los Angeles, CA, Las Vegas's peak-month normal high is 27.8°F (15.4°C) higher, its coldest-month mean is 9.4°F (5.2°C) lower, and its annual precipitation is 8.05 in less.

PlaceListed asStation distanceColdest mean °FWarmest high °FPrecip. in/yrSnow in/yrLast frost
Las Vegas, NVthis page–48.2104.54.20.2January 20
Los Angeles, CAnearby235 mi (378 km)57.676.712.2–no freeze
Phoenix, AZnearby, similar256 mi (412 km)55.8106.57.2–rare freeze
San Diego, CAnearby258 mi (415 km)57.977.39.8–no freeze
Tucson, AZsimilar363 mi (585 km)53.0101.210.60.1February 5
Albuquerque, NMsimilar486 mi (781 km)36.991.28.87.9April 6

How nearby and similar places are chosen: methodology.

Source and station

The data for Las Vegas come from NOAA station LAS VEGAS MCCARRAN AP, NV US (USW00023169) at 36.0719, -115.1633, elevation 2,131 ft (650 m). It lies 12 mi (20 km) in a straight line from the center point of Las Vegas city, the “internal point” in the US Census 2024 Gazetteer.

Each monthly normal used here rests on at least 27 years of data from 1991–2020 (NOAA's per-field year counts).

NOAA completeness flags on the monthly fields used here:

  • S: Standard: meets WMO standards for data availability for 24 or more years.

Cite the data as:

Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). Station USW00023169 (LAS VEGAS MCCARRAN AP, NV US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-09.

Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020). Station USW00023169 (LAS VEGAS MCCARRAN AP, NV US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ek7-fk11. Accessed 2026-10-09.

Files used: monthly normals CSV, annual/seasonal normals CSV (retrieved 2026-10-09). The values on this page as JSON: /us/nv/las-vegas/data.json.