Boulder City in Winter
In winter (December, January and February), Boulder City sees average daytime highs around 59°F and overnight lows near 42°F, with 2.9 in of rain over about 11 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Over the season highs climb from about 59°F in early December to 64°F by late February. The sky is clear or mostly clear about 53% of the time across winter, and the air most often feels dry.
Winter is Boulder City's 3rd-best season to visit on our travel score. For the whole year in context, see Boulder City's year-round climate.
- Avg daytime high
- 59°F
- coldest season of the year
- Avg overnight low
- 42°F
- Rainfall
- 2.9 in
- 11 wet days
- Avg wind
- 4 mph
- Travel score
- 5.5
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Boulder City in Winter
Over the season highs climb from about 59°F in early December to 64°F by late February.
A typical winter day in Boulder City reaches about 59°F and drops to 42°F overnight. The warmest of the three months is February, the coolest December.
How winter really feels in Boulder City
Once humidity and wind are folded in, winter brings about 0 days that feel above 90°F and 0 that feel at or below 32°F.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Boulder City weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 58° / 41° | 0.9 | 3.6 | 9.8 | 5.1 |
| Feb | 63° / 45° | 1.2 | 4.4 | 10.6 | 6.5 |
| Mar | 71° / 51° | 0.7 | 3.2 | 11.7 | 8.0 |
| Apr | 79° / 57° | 0.3 | 1.6 | 12.9 | 8.3 |
| May | 89° / 66° | 0.1 | 1.1 | 13.9 | 5.5 |
| Jun | 99° / 75° | 0.1 | 0.5 | 14.4 | 1.8 |
| Jul | 104° / 82° | 0.3 | 2.5 | 14.2 | 0.0 |
| Aug | 102° / 81° | 0.4 | 3 | 13.4 | 0.6 |
| Sep | 95° / 73° | 0.3 | 1.8 | 12.2 | 3.4 |
| Oct | 81° / 61° | 0.4 | 1.8 | 11.1 | 7.8 |
| Nov | 67° / 49° | 0.5 | 1.7 | 10.1 | 7.8 |
| Dec | 56° / 41° | 0.8 | 3 | 9.6 | 4.8 |
Cloud cover in Winter
The sky is clear or mostly clear about 53% of the time across winter.
Chance of precipitation in Winter
Boulder City gets around 2.9 in of rain over 11 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 4 mph across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 42 min in early December to 11 h 06 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 3.4 kWh/m².
Is winter a good time to visit Boulder City?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Boulder City for sightseeing.
What to pack for Boulder City in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Boulder City sees daytime highs around 59°F and nights near 42°F. Worth packing: a warm layer. About 11 days see rain.
UV index in Boulder City in Winter
Clear-sky midday UV across winter averages around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Boulder City peaks around June 22 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 5 | 6 | 8 | 11 | 10 | 10 | 8 | 6 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Where is Boulder City?
Boulder City sits at 36.0°N, 114.8°W, 2,510 ft above sea level, in United States. The nearest listed city is Henderson, 9.3 mi away.
Topography around Boulder City
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Boulder City.
Within 2 miles, the terrain around Boulder City has significant variations in elevation — a maximum elevation change of 1,634 ft around an average of 2,431 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,455 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,315 ft.
The land around Boulder City is covered by bare terrain (55%) and artificial surfaces (27%) within 2 miles, bare terrain (68%) within 10 miles, and bare terrain (59%) and shrubs (26%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Boulder City (35.9786°, -114.8325°, elevation 2,510 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.