Las Vegas, Nevada climate: Normal weather by month, frost dates and records
Las Vegas's normal year runs from 40°F December nights to 105°F July afternoons, with 4.2 inches of precipitation and less than an inch of snow (0.2 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 21.2°C, December lows of 4°C, July highs of 40°C, 106 mm of precipitation a year.
- NOAA stationHarry Reid International Airport
- Station IDUSW00023169
- Location36.07°N 115.16°W
- Elevation2,131 ft (650 m)
- From the center12 miles
- Population678,922
On October 23, the normal high in Las Vegas is 78°F and the normal low 57°F, and the chance of measurable rain or snow is 5%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Las Vegas.
- Jan 59° 41°
- Feb 63° 44°
- Mar 71° 51°
- Apr 79° 57°
- May 89° 66°
- Jun 99° 76°
- Jul 105° 82°
- Aug 103° 81°
- Sep 95° 72°
- Oct 81° 60°
- Nov 67° 47°
- Dec 57° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Las Vegas each month?
July is the warmest month, with normal highs of 105°F; December the coldest, with normal lows of 40°F. The most precipitation falls in February (0.80 in), the least in June (0.04 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 59°F | 41°F | 49.5°F | 0.56 | 3 | <1 | 3 | 10 h |
| February | 63°F | 44°F | 53.5°F | 0.80 | 4 | <1 | 1 | 10 h 50 min |
| March | 71°F | 51°F | 60.8°F | 0.42 | 3 | <1 | <1 | 11 h 50 min |
| April | 79°F | 57°F | 67.7°F | 0.20 | 2 | 4 | <1 | 13 h |
| May | 89°F | 66°F | 77.3°F | 0.07 | 1 | 16 | <1 | 14 h |
| June | 99°F | 76°F | 87.6°F | 0.04 | <1 | 27 | <1 | 14 h 40 min |
| July | 105°F | 82°F | 93.2°F | 0.38 | 3 | 31 | <1 | 14 h 20 min |
| August | 103°F | 81°F | 91.7°F | 0.32 | 2 | 30 | <1 | 13 h 30 min |
| September | 95°F | 72°F | 83.6°F | 0.32 | 2 | 24 | <1 | 12 h 30 min |
| October | 81°F | 60°F | 70.4°F | 0.32 | 2 | 6 | <1 | 11 h 20 min |
| November | 67°F | 47°F | 57.2°F | 0.30 | 2 | <1 | 1 | 10 h 20 min |
| December | 57°F | 40°F | 48.2°F | 0.45 | 3 | <1 | 5 | 9 h 40 min |
| Year (annual) | 81°F | 60°F | 70.1°F | 4.18 | 26 | 137 | 10 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 15°C | 5°C | 9.7°C | 14 mm |
| February | 17°C | 7°C | 11.9°C | 20 mm |
| March | 22°C | 10°C | 16.0°C | 11 mm |
| April | 26°C | 14°C | 19.8°C | 5 mm |
| May | 31°C | 19°C | 25.2°C | 2 mm |
| June | 37°C | 24°C | 30.9°C | 1 mm |
| July | 40°C | 28°C | 34.0°C | 10 mm |
| August | 39°C | 27°C | 33.2°C | 8 mm |
| September | 35°C | 22°C | 28.7°C | 8 mm |
| October | 27°C | 15°C | 21.3°C | 8 mm |
| November | 19°C | 8°C | 14.0°C | 8 mm |
| December | 14°C | 4°C | 9.0°C | 11 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00023169; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Las Vegas?
Normal highs sit between 65°F and 85°F in March, April, October and November. Of those, November has the fewest days with rain (2).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00023169.
When is the last frost in Las Vegas?
In Las Vegas, the last spring frost (32°F) comes after January 20 in half of years and after February 14 in one year in ten; the first autumn frost comes before December 15 in half of years and before November 28 in one year in ten. A night at 32°F or colder comes at all in 94% of years here (NOAA).
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- January 201 year in 10 after February 14; 9 in 10 after December 20
- First autumn frost, half of years before
- December 151 year in 10 before November 28; 9 in 10 before January 7
NOAA puts the median frost-free season at 333 days, and the season without a hard freeze (28°F) at 365 days.
A hard freeze (28°F) comes after December 31 in half of springs and before December 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Las Vegas in zones 8b to 9b across its 19 ZIP code areas (8b in 89138, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Las Vegas's NOAA station is in zone 9b: the coldest night of a typical year reaches 27°F (30 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Nevada · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00023169; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
What hardiness zone is each Las Vegas ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Las Vegas's 19 ZIP code areas run from zone 8b to 9b: 1 in 8b, 11 in 9a and 7 in 9b. Each ZIP's frost dates are in the frost tool.
| ZIP code | Zone | Land in Las Vegas |
|---|---|---|
| 89101 | 9b | 13.7 km² |
| 89102 | 9b | 11.5 km² |
| 89104 | 9b | 7.3 km² |
| 89106 | 9b | 13.0 km² |
| 89107 | 9b | 14.6 km² |
| 89108 | 9b | 19.9 km² |
| 89110 | 9b | 10.3 km² |
| 89117 | 9a | 16.1 km² |
| 89128 | 9a | 15.5 km² |
| 89129 | 9a | 18.9 km² |
| 89130 | 9a | 18.5 km² |
| 89131 | 9a | 33.4 km² |
| 89134 | 9a | 17.3 km² |
| 89138 | 8b | 44.7 km² |
| 89143 | 9a | 7.9 km² |
| 89144 | 9a | 11.6 km² |
| 89145 | 9a | 11.0 km² |
| 89146 | 9a | 5.1 km² |
| 89149 | 9a | 20.3 km² |
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Las Vegas?
In a normal year in Las Vegas, 137 days a year reach 90°F (78 of them 100°F or more), 10 nights fall to 32°F or colder and 26 days bring measurable precipitation.
- Days at 90°F or more
- 137a normal year
- Days at 100°F or more
- 78a normal year
- Nights at 32°F or colder
- 10a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 26a normal year
The highest temperature in Las Vegas's official record (kept by the National Weather Service since 1937) is 120°F, on July 7, 2024; the lowest is 8°F, on January 25, 1937.
The wettest calendar year on that record is 1941, with 10.72 in; the snowiest season is 1948–49, with 16.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00023169; records: ACIS (NOAA Regional Climate Centers), NWS threaded record LASthr. Records use complete months only; a month missing more than three days is left out.
How humid and windy is Las Vegas, and how clear are its skies?
The summer (June-August) dew point averages 41°F. The muggiest month is July, with an average dew point of 46°F; the driest air comes in December (23°F). April is the windiest month (10.1 mph on average), and September has the most clear or nearly clear hours (75%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 26°F | 39% | 26% | 6.5 mph | 51% | 14% |
| February | 27°F | 35% | 23% | 8.0 mph | 48% | 15% |
| March | 26°F | 25% | 16% | 9.7 mph | 53% | 10% |
| April | 27°F | 19% | 13% | 10.1 mph | 62% | 6% |
| May | 32°F | 16% | 11% | 9.7 mph | 65% | 5% |
| June | 35°F | 14% | 9% | 9.5 mph | 74% | 2% |
| July | 46°F | 20% | 15% | 8.3 mph | 55% | 3% |
| August | 43°F | 21% | 15% | 7.9 mph | 66% | 4% |
| September | 34°F | 21% | 14% | 7.2 mph | 75% | 2% |
| October | 29°F | 28% | 19% | 6.7 mph | 64% | 6% |
| November | 23°F | 34% | 23% | 6.6 mph | 57% | 10% |
| December | 23°F | 40% | 27% | 6.2 mph | 50% | 15% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023169. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is Las Vegas?
Over a year 90% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Las Vegas, 5.6 kWh per square metre a day. June is the sunniest month (95%) and December the cloudiest (82%). Among the 459 U.S. places of 50,000 or more, that ranks tied 21st (with 17 others) in sunshine.
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 84% | 3.0 |
| February | 83% | 4.0 |
| March | 87% | 5.5 |
| April | 89% | 6.9 |
| May | 91% | 7.8 |
| June | 95% | 8.5 |
| July | 90% | 7.6 |
| August | 92% | 7.1 |
| September | 94% | 6.2 |
| October | 91% | 4.7 |
| November | 88% | 3.4 |
| December | 82% | 2.7 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Las Vegas need?
A normal year in Las Vegas brings 1,836 heating degree days, 66% fewer than the median U.S. place (5,373), and 3,720 cooling degree days, 4.1 times the median (908). Three months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 7,587 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 481 | 0 |
| February | 323 | 1 |
| March | 166 | 36 |
| April | 55 | 136 |
| May | 8 | 390 |
| June | 1 | 679 |
| July | 0 | 876 |
| August | 0 | 828 |
| September | 0 | 560 |
| October | 33 | 200 |
| November | 250 | 16 |
| December | 519 | 0 |
| Year (annual) | 1,836 | 3,720 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00023169. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Las Vegas been warmer than normal lately?
2025 averaged 71.8°F, 1.7°F above the 1991-2020 normal of 70.1°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 71.5°F | +1.4°F | 1.86 |
| 2022 | 70.5°F | +0.4°F | 2.13 |
| 2023 | 69.3°F | −0.8°F | 4.59 |
| 2024 | 72.2°F | +2.1°F | 2.27 |
| 2025 | 71.8°F | +1.7°F | 5.41 |
Over 69 complete years from 1950 to 2025, the station's annual mean temperature rose at a fitted 5.4°F per century (+0.30°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00023169; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Las Vegas's climate compare?
Las Vegas is warmer than 53 of the other 54 places with their own NOAA record in Nevada, and wetter than 1. Across the 7,247 U.S. stations with normals, its annual mean of 70.1°F is warmer than 95%.
In the Köppen classification computed from these normals, Las Vegas is BWh: hot desert. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Las Vegas share this climate record?
4 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Henderson, NValso near: Enterprise (9 mi, 69.1°F a year); Alan Bible Visitor Center (13 mi, 71.7°F a year)350,039 people · 9 mi SE
- Paradise, NValso near: Enterprise (4 mi, 69.1°F a year); Las Vegas Air Terminal (9 mi, 68.8°F a year)186,178 people · 2 mi NE
- Whitney, NV46,268 people · 7 mi E
- Winchester, NV37,774 people · 5 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Las Vegas's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Las Vegas. This page uses Harry Reid International Airport; the other differs by site and elevation, and the linked ones have pages of their own:
| Station | From the center | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Las Vegas Air Terminal USW00053123 | 4 mi E | 2,203 ft | 68.8°F | 39°F | 104°F | 4.0 | – | January 24 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Las Vegas's climate
What is the coldest month in Las Vegas?
December, with a normal high of 57°F and a normal low of 40°F. The warmest is July (105°F by day, 82°F at night).
Does it snow in Las Vegas?
Rarely: NOAA's normal is 0.2 inch a year.
What is the rainiest month in Las Vegas?
February, with 0.80 in of precipitation in a normal year; the driest is June with 0.04 in.
What plant hardiness zone is Las Vegas in?
The USDA's 2023 map puts Las Vegas in zones 8b to 9b across its 19 ZIP code areas (8b in 89138, the largest). By the same method at Las Vegas's NOAA station, the coldest night of a typical year reaches 27°F (30 years, 1991-2020): zone 9b.
How late can frost come in Las Vegas?
In half of years the last 32°F night comes after January 20; in one year in ten it comes after February 14. Waiting until February 14 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Las Vegas in OctoberThis month day by day, its records and recent years
- Nevada climateThe statewide normals and every place in the state
- Enterprise, NV2 miles from this station, 69.1°F a year
- Las Vegas Air Terminal, NV10 miles from this station, 68.8°F a year
- North Las Vegas, NV12 miles from this station, 69.7°F a year
- Red Rock Canyon - Spring Mount Ranch S, NV17 miles from this station, 61.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made