Dallas weather in December
December is one of the least pleasant months in Dallas: highs of 13°C (56°F) and about 61 mm (2.4 in) of rain on average. Nights average 2°C (35°F) and cloud cover 52% (NASA POWER, 2001–2025 averages). It is the 4th driest month of the year and the 2nd coolest. Compared with November, it is cooler and about as wet; January brings highs of 12°C (54°F) and 58 mm (2.3 in) of rain.
Is December a good time to visit Dallas?
least pleasant month Weather score 60/100.
December is one of the least pleasant months for weather in Dallas. For better conditions, consider Mar–Apr, Sep–Nov.
Does it rain a lot in Dallas in December?
Some rain is normal: about 61 mm (2.4 in) falls in an average December. It is the 4th driest month of the year.
How warm is Dallas in December?
Days average 13°C (56°F) and nights 2°C (35°F).
Dallas weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 12°C (54°F) | 1°C (33°F) | 58 mm | 50% | least pleasant |
| February | 15°C (58°F) | 3°C (37°F) | 67 mm | 57% | least pleasant |
| March | 20°C (68°F) | 8°C (46°F) | 88 mm | 55% | best |
| April | 25°C (76°F) | 12°C (54°F) | 83 mm | 53% | best |
| May | 29°C (83°F) | 17°C (63°F) | 116 mm | 55% | fair |
| June | 33°C (92°F) | 22°C (71°F) | 96 mm | 44% | fair |
| July | 36°C (96°F) | 24°C (75°F) | 55 mm | 41% | least pleasant |
| August | 36°C (97°F) | 24°C (75°F) | 62 mm | 38% | least pleasant |
| September | 32°C (89°F) | 20°C (68°F) | 77 mm | 38% | best |
| October | 26°C (78°F) | 13°C (55°F) | 102 mm | 39% | best |
| November | 19°C (66°F) | 7°C (44°F) | 57 mm | 45% | best |
| December | 13°C (56°F) | 2°C (35°F) | 61 mm | 52% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months