Las Vegas, NV: average weather by month
NOAA 1991–2020 climate normals at the HARRY REID INTL AP station, read through NOAA's Regional Climate Centers' ACIS service. Every column below is the station's own average for that month over that 30-year period — not a forecast. The rainfall figures are NOAA's precipitation normal, so they count rain plus melted snow (and any other frozen precipitation, as water), not rain alone.
80.5°F
59.6°F
4.2 in
All 12 months
| Month | Avg. high | Avg. low | Rainfall | Snowfall |
|---|---|---|---|---|
| January | 58.5°F (15°C) | 40.5°F (5°C) | 0.56 in (14 mm) | 0.0 in (0.0 cm) |
| February | 62.9°F (17°C) | 44.1°F (7°C) | 0.8 in (20 mm) | 0.0 in (0.0 cm) |
| March | 71.1°F (22°C) | 50.5°F (10°C) | 0.42 in (11 mm) | 0.0 in (0.0 cm) |
| April | 78.5°F (26°C) | 56.9°F (14°C) | 0.2 in (5 mm) | 0.0 in (0.0 cm) |
| May | 88.5°F (31°C) | 66.1°F (19°C) | 0.07 in (2 mm) | 0.0 in (0.0 cm) |
| June | 99.4°F (37°C) | 75.8°F (24°C) | 0.04 in (1 mm) | 0.0 in (0.0 cm) |
| July | 104.5°F (40°C) | 82°F (28°C) | 0.38 in (10 mm) | 0.0 in (0.0 cm) |
| August | 102.8°F (39°C) | 80.6°F (27°C) | 0.32 in (8 mm) | 0.0 in (0.0 cm) |
| September | 94.9°F (35°C) | 72.4°F (22°C) | 0.32 in (8 mm) | 0.0 in (0.0 cm) |
| October | 81.2°F (27°C) | 59.6°F (15°C) | 0.32 in (8 mm) | 0.0 in (0.0 cm) |
| November | 67.1°F (19°C) | 47.3°F (8°C) | 0.3 in (8 mm) | 0.0 in (0.0 cm) |
| December | 56.9°F (14°C) | 39.6°F (4°C) | 0.45 in (11 mm) | 0.2 in (0.5 cm) |
Snowfall is the station's own snowfall normal (fresh snow as it falls, in inches), a separate ACIS element from the rainfall column, which already counts that snow once melted.
Reading the twelve months
By these station averages, July runs the warmest (104.5°F average high) and December the coolest (56.9°F average high). February averages the most rain (0.8 in) and June the least (0.04 in).
Months within our comfort range
We set one fixed, objective threshold ourselves — average high between 65°F and 80°F, and average rainfall under 2 in — and check each of the twelve rows against it. This is not a claim that any other month is bad, and not our judgment of which month suits any trip; it is just which rows on the table above clear the stated numbers. See how we set this threshold.
March, April, November are the months at Las Vegas that clear both parts of the threshold: March 71.1°F / 0.42 in; April 78.5°F / 0.2 in; November 67.1°F / 0.3 in.
What the local weather office says
Local weather office
driest major metro area
“help make Las Vegas the driest major metropolitan area in the continental United States”
Continental United States, per the NWS Las Vegas office's climate summary
Climate of Las Vegas, National Weather Service, Las Vegas office (VEF); read 2026-09-28
Local weather office
hot summer, mild winter nights in the 20s
“Las Vegas is commonly noted for its abundant sunshine throughout the year and hot summer temperatures which reach into the triple digits”
“The coldest of winter nights will see temperatures drop into the 20s”
NWS Las Vegas office's general climate description
Climate of Las Vegas, National Weather Service, Las Vegas office (VEF); read 2026-09-28
Compared with nearby cities we cover
| City | Annual avg. high | Annual avg. low | Annual rainfall |
|---|---|---|---|
| Las Vegas | 80.5°F | 59.6°F | 4.2 in |
| Phoenix, AZ | 87.1°F | 64.1°F | 7.2 in |
| Los Angeles, CA | 70.6°F | 56.6°F | 12.2 in |
About the station
These normals are read at a single NOAA/NWS station, HARRY REID INTL AP (station ID 23169), not averaged across the whole metro area. A different station nearby — higher ground, closer to water, further inland — can read noticeably different numbers, especially for rain. Run this station's ACIS query yourself.
What this page adds
A search for "las vegas weather by month" mostly returns a day-by-day forecast calendar (useful only for the next two weeks) or a local weather office page built for a different question. This page puts all twelve months of the 1991–2020 average on one screen, in both °F/°C and inches/mm, names the exact station behind the numbers, and sets it next to a few nearby cities so the difference is visible at a glance.
Source: NOAA's current (1991–2020) climate normals, pulled via the Regional Climate Centers' ACIS lookup tool. How we read this data.