Adelanto in Winter
In winter (December, January and February), Adelanto sees average daytime highs around 56°F and overnight lows near 39°F, with 5.7 in of precipitation over about 16 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across winter, daytime highs hold fairly steady around 56°F. The sky is clear or mostly clear about 49% of the time across winter, and the air most often feels dry.
Winter is Adelanto's weakest season of the year to visit on our travel score. For the whole year in context, see Adelanto's year-round climate.
- Avg daytime high
- 56°F
- coldest season of the year
- Avg overnight low
- 39°F
- Precipitation
- 5.7 in
- 16 wet days
- Avg wind
- 5 mph
- Travel score
- 4.2
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Adelanto in Winter
Across winter, daytime highs hold fairly steady around 56°F.
A typical winter day in Adelanto reaches about 56°F and drops to 39°F overnight. The warmest of the three months is February, the coolest December.
How winter really feels in Adelanto
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.
Adelanto 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 | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 55° / 39° | 1.9 | 5.3 | 1.5 | 9.9 | 4.1 |
| Feb | 57° / 40° | 2.3 | 6 | 1.9 | 10.7 | 4.6 |
| Mar | 62° / 43° | 1.4 | 5.5 | 1.1 | 11.7 | 6.3 |
| Apr | 69° / 47° | 0.7 | 3.4 | 0.6 | 12.8 | 7.8 |
| May | 77° / 53° | 0.3 | 2.1 | 0 | 13.8 | 8.7 |
| Jun | 86° / 60° | 0.1 | 0.8 | 0 | 14.3 | 6.8 |
| Jul | 92° / 66° | 0.4 | 3.1 | 0 | 14.1 | 4.4 |
| Aug | 92° / 67° | 0.3 | 2.6 | 0 | 13.3 | 4.5 |
| Sep | 85° / 62° | 0.3 | 1.6 | 0 | 12.2 | 6.8 |
| Oct | 75° / 54° | 0.4 | 1.8 | 0 | 11.1 | 8.8 |
| Nov | 63° / 44° | 0.6 | 2.7 | 0.4 | 10.2 | 6.9 |
| Dec | 54° / 38° | 1.5 | 4.3 | 1 | 9.7 | 4.0 |
Cloud cover in Winter
The sky is clear or mostly clear about 49% of the time across winter.
Chance of precipitation in Winter
Adelanto gets around 5.7 in of rain and snow over 16 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 5 mph across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 54 min in early December to 11 h 12 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 3.5 kWh/m².
Is winter a good time to visit Adelanto?
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 Adelanto for sightseeing.
What to pack for Adelanto in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Adelanto sees daytime highs around 56°F and nights near 39°F. Worth packing: a warm layer. About 16 days see rain.
UV index in Adelanto in Winter
Clear-sky midday UV across winter averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Adelanto peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 5 | 8 | 8 | 11 | 11 | 11 | 8 | 6 | 3 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | High |
| Apr | 8 | Very high |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 3 | Moderate |
Air quality in Adelanto in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Adelanto is worst in September — around 39 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (May, 12 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 14 | 15 | 16 | 14 | 12 | 15 | 18 | 22 | 39 | 15 | 17 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 15 | Moderate |
| Mar | 16 | Moderate |
| Apr | 14 | Moderate |
| May | 12 | Moderate |
| Jun | 15 | Moderate |
| Jul | 18 | Moderate |
| Aug | 22 | Moderate |
| Sep | 39 | Poor |
| Oct | 15 | Moderate |
| Nov | 17 | Moderate |
| Dec | 14 | Moderate |
Where is Adelanto?
Adelanto sits at 34.6°N, 117.4°W, 2,871 ft above sea level, in United States. The nearest listed city is Victorville, 7.5 mi away.
Topography around Adelanto
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Adelanto.
Within 2 miles, the terrain around Adelanto has only modest variations in elevation — a maximum elevation change of 157 ft around an average of 2,874 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,008 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 11,230 ft.
The land around Adelanto is covered by grassland (39%) and bare terrain (39%) within 2 miles, bare terrain (47%) and grassland (28%) within 10 miles, and bare terrain (39%), grassland (21%) and shrubs (20%) 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 Adelanto (34.5828°, -117.4092°, elevation 2,871 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.