Duncan in Winter
In winter (December, January and February), Duncan sees average daytime highs around 54°F and overnight lows near 34°F, with 5.4 in of precipitation over about 16 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 54°F. The sky is clear or mostly clear about 48% of the time across winter, and the air most often feels dry.
Winter is Duncan's 3rd-best season to visit on our travel score. For the whole year in context, see Duncan's year-round climate.
- Avg daytime high
- 54°F
- coldest season of the year
- Avg overnight low
- 34°F
- Precipitation
- 5.4 in
- 16 wet days
- Avg wind
- 8 mph
- Travel score
- 3.7
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Duncan in Winter
Across winter, daytime highs hold fairly steady around 54°F.
A typical winter day in Duncan reaches about 54°F and drops to 34°F overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Duncan
Once humidity and wind are folded in, winter brings about 0 days that feel above 90°F and 90 that feel at or below 32°F.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Duncan 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 | 52° / 32° | 1.5 | 4.8 | 0.9 | 10 | 3.2 |
| Feb | 56° / 36° | 1.8 | 5.8 | 0.9 | 10.7 | 4.4 |
| Mar | 65° / 44° | 3.1 | 7.6 | 0.4 | 11.7 | 6.4 |
| Apr | 73° / 52° | 3.6 | 7.9 | 0 | 12.8 | 7.3 |
| May | 81° / 62° | 4.7 | 10.6 | 0 | 13.8 | 6.3 |
| Jun | 89° / 70° | 3.6 | 8.6 | 0 | 14.3 | 4.4 |
| Jul | 94° / 74° | 1.8 | 5.8 | 0 | 14.1 | 3.2 |
| Aug | 93° / 73° | 1.9 | 5.6 | 0 | 13.3 | 3.4 |
| Sep | 85° / 65° | 2.8 | 6.4 | 0 | 12.2 | 5.8 |
| Oct | 74° / 54° | 3.5 | 6.8 | 0 | 11.1 | 7.6 |
| Nov | 62° / 42° | 2.1 | 5.5 | 0.2 | 10.2 | 6.2 |
| Dec | 53° / 34° | 2.0 | 5.2 | 0.8 | 9.7 | 3.5 |
Cloud cover in Winter
The sky is clear or mostly clear about 48% of the time across winter.
Chance of precipitation in Winter
Duncan gets around 5.4 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 8 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 3.1 kWh/m².
Is winter a good time to visit Duncan?
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 weaker month for outdoor sightseeing in Duncan.
What to pack for Duncan in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Duncan sees daytime highs around 54°F and nights near 34°F. Pack a warm layer. About 16 days see rain.
UV index in Duncan 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 Duncan peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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) | 3 | 5 | 6 | 9 | 9 | 10 | 10 | 10 | 7 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 6 | High |
| Apr | 9 | Very high |
| May | 9 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 7 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Where is Duncan?
Duncan sits at 34.5°N, 98.0°W, 1,122 ft above sea level, in United States. The nearest listed city is Lawton, 25 mi away.
Topography around Duncan
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Duncan.
Within 2 miles, the terrain around Duncan has only modest variations in elevation — a maximum elevation change of 167 ft around an average of 1,125 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 367 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,716 ft.
The land around Duncan is covered by grassland (39%), trees (29%) and artificial surfaces (27%) within 2 miles, grassland (64%) and trees (25%) within 10 miles, and grassland (66%) 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 Duncan (34.5023°, -97.9578°, elevation 1,122 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.