Green Valley in Winter
In winter (December, January and February), Green Valley sees average daytime highs around 63°F and overnight lows near 39°F, with 3.1 in of precipitation over about 12 wet days across the season. It is the coldest season of the year and the 2nd-wettest season.
Across winter, daytime highs hold fairly steady around 63°F. The sky is clear or mostly clear about 57% of the time across winter, and the air most often feels dry.
Winter is Green Valley's 3rd-best season to visit on our travel score. For the whole year in context, see Green Valley's year-round climate.
- Avg daytime high
- 63°F
- coldest season of the year
- Avg overnight low
- 39°F
- Precipitation
- 3.1 in
- 12 wet days
- Avg wind
- 6 mph
- Travel score
- 6.7
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Green Valley in Winter
Across winter, daytime highs hold fairly steady around 63°F.
A typical winter day in Green Valley reaches about 63°F and drops to 39°F overnight. The warmest of the three months is February, the coolest December.
How winter really feels in Green Valley
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.
Green Valley 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 | 63° / 38° | 1.0 | 3.9 | 10.2 | 6.6 |
| Feb | 65° / 41° | 1.0 | 4 | 10.8 | 7.1 |
| Mar | 71° / 46° | 0.7 | 3 | 11.8 | 8.2 |
| Apr | 78° / 51° | 0.2 | 1.5 | 12.8 | 8.8 |
| May | 87° / 58° | 0.1 | 1.1 | 13.6 | 6.4 |
| Jun | 95° / 67° | 0.3 | 2 | 14 | 3.4 |
| Jul | 93° / 72° | 2.5 | 11.5 | 13.9 | 3.0 |
| Aug | 91° / 70° | 2.3 | 11.6 | 13.2 | 3.6 |
| Sep | 89° / 66° | 1.4 | 5.6 | 12.2 | 5.1 |
| Oct | 81° / 56° | 0.7 | 2.8 | 11.2 | 7.9 |
| Nov | 71° / 46° | 0.6 | 2.5 | 10.4 | 8.3 |
| Dec | 62° / 38° | 1.1 | 4.2 | 10 | 6.4 |
Cloud cover in Winter
The sky is clear or mostly clear about 57% of the time across winter.
Chance of precipitation in Winter
Green Valley gets around 3.1 in of rain and snow over 12 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 6 mph across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 06 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 4.0 kWh/m².
Is winter a good time to visit Green Valley?
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 Green Valley for sightseeing.
What to pack for Green Valley in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Green Valley sees daytime highs around 63°F and nights near 39°F. Worth packing: a warm layer and sun protection. About 12 days see rain.
UV index in Green Valley 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 Green Valley peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 6 | 9 | 9 | 12 | 11 | 11 | 10 | 7 | 5 | 4 |
| Level | Moderate | High | High | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | High |
| Mar | 6 | High |
| Apr | 9 | Very high |
| May | 9 | Very high |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 7 | High |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Where is Green Valley?
Green Valley sits at 31.9°N, 111.0°W, 2,904 ft above sea level, in United States. The nearest listed city is Sahuarita, 7.5 mi away.
Topography around Green Valley
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Green Valley.
Within 2 miles, the terrain around Green Valley has only modest variations in elevation — a maximum elevation change of 351 ft around an average of 2,940 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,159 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,277 ft.
The land around Green Valley is covered by shrubs (46%) and artificial surfaces (33%) within 2 miles, shrubs (78%) within 10 miles, and shrubs (80%) 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 Green Valley (31.8543°, -110.9937°, elevation 2,904 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.