Las Vegas Mccarran, NV Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Las Vegas Mccarran's primary NOAA station, LAS VEGAS MCCARRAN AP.
The climate verdict for Las Vegas Mccarran
Las Vegas Mccarran, Nevada is cooling-led and dry. Its 4.2 inches of annual precipitation pairs with an annual average of 70°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 70°F
- yearly average temperature, NOAA normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 4.2"
- yearly precipitation total
- 329 days
- frost-free days per growing season
Las Vegas Mccarran: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00023169 · Las Vegas Mccarran, NV 70°F mean · 4.2" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-ARID · SWING-WIDE · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 70°F
- RANK-WARM #6,518
- PHOTO-FINISH ≈ Valley of Fire…
- PRCP-ARID 4.2"
- SWING-WIDE 45°F
- COMF-TOP 80/100
- LOAD-COOL 3,720 CDD
- STN-1 USW00023169
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Valley of Fire State Park, NV (+ 0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every NV station list.
- Las Vegas Mccar… (this station) 70°F
- Cold N Las Vegas, NV 70°F
- Hot Echo Bay, NV 70°F
- Near Valley of Fire…, NV 70°F
- Near Baker, CA 70°F
Climate Living Index · Las Vegas Mccarran
Las Vegas Mccarran: 63/100 · grade C
Las Vegas Mccarran publishes all six Living Index dimensions from NOAA annual/seasonal normals · NOAA daily multivariate normals · NOAA hourly normals.
PlainClimate-derived for Las Vegas Mccarran, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 329 days/year | 100/100 · A |
| Annual temperature balance | 70.1°F · 2.6° from 67.5°F | 92/100 · A |
| Snowfall burden | 0.2 inches/year | 89/100 · A |
| Normal heat + freeze calendar | 131 calendar days | 58/100 · C |
| Summer moisture balance | 41.3°F mean dew point | 41/100 · D |
| Precipitation balance | 4.2 in · 30.8 from 35 in | 0/100 · F |
Las Vegas Mccarran · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Las Vegas Mccarran's normals sit in a dry climate class: BWh
Annual precipitation falls well below the aridity threshold for this temperature regime, so the normals classify as hot desert (BWh). Class BWh is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically hot desert.
- Köppen code
- BWh
- Group
- Dry (arid or semi-arid)
- Warmest month
- 93.2°F
- Coldest month
- 48.2°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · cooling-led station
Where Las Vegas Mccarran sits across the climate record
Three NOAA fields for Las Vegas Mccarran's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 5% warmest
- Among 6,861 stations, Las Vegas Mccarran sits in the warmer third of annual means.
- Annual precipitation
- Drier than 100%
- Las Vegas Mccarran's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 59th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Las Vegas Mccarran compares across U.S. station-mapped locations
Las Vegas Mccarran's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Las Vegas Mccarran's measured station temperature trend
MethodologyAcross 69 complete annual observations from 1950 to 2025, LAS VEGAS MCCARRAN AP warmed at a fitted rate of 0.30°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Las Vegas Mccarran primary station fitted change +0.30 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 59°F (15°C) | 41°F (5°C) | 50°F (10°C) | 0.6" | 0.0" | 3.3 | 0.0 |
| February | 63°F (17°C) | 44°F (7°C) | 54°F (12°C) | 0.8" | 0.0" | 1.1 | 0.0 |
| March | 71°F (22°C) | 51°F (10°C) | 61°F (16°C) | 0.4" | 0.0" | 0.1 | 0.3 |
| April | 79°F (26°C) | 57°F (14°C) | 68°F (20°C) | 0.2" | 0.0" | 0.0 | 3.5 |
| May | 89°F (31°C) | 66°F (19°C) | 77°F (25°C) | 0.1" | 0.0" | 0.0 | 15.9 |
| June | 99°F (37°C) | 76°F (24°C) | 88°F (31°C) | 0.0" | 0.0" | 0.0 | 26.9 |
| July | 105°F (40°C) | 82°F (28°C) | 93°F (34°C) | 0.4" | 0.0" | 0.0 | 30.6 |
| August | 103°F (39°C) | 81°F (27°C) | 92°F (33°C) | 0.3" | 0.0" | 0.0 | 30.4 |
| September | 95°F (35°C) | 72°F (22°C) | 84°F (29°C) | 0.3" | 0.0" | 0.0 | 24.1 |
| October | 81°F (27°C) | 60°F (15°C) | 70°F (21°C) | 0.3" | 0.0" | 0.0 | 5.5 |
| November | 67°F (19°C) | 47°F (8°C) | 57°F (14°C) | 0.3" | 0.0" | 0.7 | 0.0 |
| December | 57°F (14°C) | 40°F (4°C) | 48°F (9°C) | 0.5" | 0.2" | 4.6 | 0.0 |
The year, day by day
The year in Las Vegas Mccarran runs from a mild 39°F around December 20 to 105°F at the peak near July 17, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 20 through September 27, covering 131 dates. The broader mild season, normal highs of 70°F or more, runs March 12 to November 9.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 39°F around December 20.
Where the wet dates fall
The likeliest wet date is February 19, when 14% of years recorded at least a hundredth of an inch. The driest is June 10 at 2%. Summed across the calendar, that is about 26 wet dates a year.
The widest day
June 13 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Las Vegas Mccarran.
Where Las Vegas Mccarran Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 131 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Aridity defines the water calendar: about 4 inches in a normal year lands this among the driest tenth of ranked stations.
Las Vegas Mccarran earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
3.1 days with precipitation
4.1 days with precipitation
2.8 days with precipitation
1.6 days with precipitation
1.1 days with precipitation
0.4 days with precipitation
2.5 days with precipitation
2.2 days with precipitation
1.8 days with precipitation
1.7 days with precipitation
1.5 days with precipitation
Snow: 0.2"
3.0 days with precipitation
Las Vegas Mccarran's wet season runs through the cold months
December, January and February carry 43% of the year's precipitation here, while June through August contribute 18%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows a wide 45°F gap between its warmest and coldest month.
- Wettest month
- February, 0.8"
- Driest month
- June, 0.0"
- Wettest three months
- February, January, December (43% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
Las Vegas Mccarran is dry, and what does fall arrives gently
Only about 26 days a year record measurable precipitation here, 7% of the calendar, and they carry 4.2" between them. At roughly 0.16 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is February at about 4 wet days; the driest is June at about 0.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Snow reaches Las Vegas Mccarran, but rarely amounts to much
The normals record 0.2 inches of snow a year here, most likely in December. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 0 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
December 15
50% probability date
Last Spring Freeze
January 20
50% probability date
Growing Season
329 days
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) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 39% | 6.5 | 33% | 14% |
| February | 35% | 8.0 | 30% | 15% |
| March | 25% | 9.7 | 32% | 10% |
| April | 19% | 10.1 | 39% | 6% |
| May | 16% | 9.7 | 40% | 5% |
| June | 14% | 9.5 | 55% | 2% |
| July | 20% | 8.3 | 32% | 3% |
| August | 21% | 7.9 | 40% | 4% |
| September | 21% | 7.2 | 55% | 2% |
| October | 28% | 6.7 | 46% | 6% |
| November | 34% | 6.6 | 39% | 10% |
| December | 40% | 6.2 | 31% | 15% |
Nationwide similar cities
Other rankable U.S. places outside NV closest to Las Vegas Mccarran on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (70°F here).
- Lisbon, FL 70°F · 0.0°F off
- Morgan City, LA 70°F · 0.0°F off
- Thibodaux, LA 70°F · 0.0°F off
- Fernandina Beach, FL 70°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (4.2" here), excluding temperature-peer places.
- Lake Havasu City, AZ 4.2" · 0.0" off
- Inyokern, CA 4.3" · 0.1" off
- Ehrenberg, AZ 4.0" · 0.1" off
- Needles, CA 4.3" · 0.1" off
Scarce-water calendar
Where Las Vegas Mccarran's limited precipitation lands
cooling led · dry · mid swing
Air-conditioning demand is the clearest thermal signal here. Las Vegas Mccarran accumulates 3,720 cooling degree days, more than twice its 1,836 heating total; the monthly table shows when that imbalance builds rather than treating it as a year-round condition.
Heat demand sits beside limited local precipitation: Las Vegas Mccarran receives 4.2 inches in a normal year, inside PlainClimate's dry range. Recorded annual snowfall is negligible. Month-level precipitation is the useful check on when that small annual total arrives.
July and December mark the typical warm and cold ends of the calendar in Las Vegas Mccarran's middle-range seasonal profile. The measured spread is 45.0°F. The annual average is 70°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Las Vegas Mccarran has a long frost-free window of roughly 329 days, but the dry annual profile is a separate constraint. Growing-season length says when freezes are unlikely, not whether rainfall is sufficient.
Las Vegas Mccarran wettest normal
February
February concentrates the scarce annual total (4.2 inches).
Las Vegas Mccarran driest normal
June
June is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Las Vegas Mccarran's climate
How dry is Las Vegas Mccarran? ▼
How many days above 90°F does Las Vegas Mccarran get? ▼
How much energy does heating and cooling require in Las Vegas Mccarran? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Las Vegas Mccarran's primary station: LAS VEGAS MCCARRAN AP (USW00023169). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Las Vegas Mccarran; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Las Vegas Mccarran comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.