Dallas weather in January
January in Dallas: cool, a little rain, with clean air — a great time to visit.
#7 of 12 months in Dallas · #244 of 604 destinations to visit in January · comfort 74/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Dallas climate normals — January
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 5°C / 41°F | |
| Feels like (high) | 12°C / 54°F | |
| Rainfall | 55 mm / 2.2 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 61% | 💧 humid |
| Dew point | 1°C / 34°F | |
| Sunshine | 6.8 h/day | |
| Daylight | 10.3 h | |
| Wind | 21 km/h / 13 mph | |
| Snowfall | 0.4 cm / 0.2 in | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Dallas in January — FAQ
- Is January a good time to visit Dallas?
- January in Dallas: cool, a little rain, with clean air — a great time to visit. It ranks #7 of 12 months for Dallas on SeasonMap's comfort score (74/100).
- What is the weather like in Dallas in January?
- In January, Dallas averages a daily high of 14.8°C and a low of 5°C, with about 55.4 mm of rain over roughly 7 rainy days.
- What is the air quality in Dallas in January?
- Dallas has a mean US Air Quality Index of about 42 in January.