Dallas weather in December: Dallas, Texas: normal highs, lows, rain and records for December
Dallas in December has a normal high of 58°F and a normal low of 38°F, a daily mean of 48°F, falling from 61°F on the 1st to 56°F by the 31st. Measurable precipitation falls on 7 days in a normal December, 2.84 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 14°C and low of 3°C, 72 mm of precipitation and 1 cm of snow in December.
- NOAA stationDallas Fort Worth Airport
- Station IDUSW00003927
- Location32.90°N 97.02°W
- Elevation560 ft (171 m)
- From the center16 miles
- Population1,326,087
- Jan 57° 36°
- Feb 61° 40°
- Mar 69° 48°
- Apr 76° 55°
- May 84° 65°
- Jun 92° 72°
- Jul 96° 76°
- Aug 96° 76°
- Sep 89° 69°
- Oct 78° 57°
- Nov 67° 46°
- Dec 58° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Dallas in December?
The normal high is 58°F and the normal low 38°F, for a daily mean of 48.1°F. December is 8.3°F cooler than November and 1.8°F warmer than January. December is the 11th warmest month of the year in Dallas and the 6th wettest. Across the month the normal high falls 5°F, from 61°F on December 1 to 56°F on December 31. From one year to the next December's mean temperature typically moves about 2.7°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 45°F and 51°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 22%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 61°F | 41°F | 21% | 13% |
| December 8 | 59°F | 40°F | 21% | 13% |
| December 15 | 58°F | 38°F | 21% | 14% |
| December 22 | 57°F | 37°F | 21% | 13% |
| December 31 | 56°F | 36°F | 22% | 13% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 61°F | 41°F | 21% | 13% | 10 h 10 min |
| December 2 | 61°F | 41°F | 21% | 13% | 10 h 10 min |
| December 3 | 61°F | 41°F | 21% | 13% | 10 h 10 min |
| December 4 | 61°F | 41°F | 21% | 13% | 10 h 10 min |
| December 5 | 60°F | 40°F | 21% | 13% | 10 h 10 min |
| December 6 | 60°F | 40°F | 21% | 13% | 10 h 10 min |
| December 7 | 60°F | 40°F | 21% | 13% | 10 h |
| December 8 | 59°F | 40°F | 21% | 13% | 10 h |
| December 9 | 59°F | 40°F | 21% | 14% | 10 h |
| December 10 | 59°F | 39°F | 21% | 14% | 10 h |
| December 11 | 59°F | 39°F | 21% | 14% | 10 h |
| December 12 | 58°F | 39°F | 21% | 14% | 10 h |
| December 13 | 58°F | 39°F | 21% | 14% | 10 h |
| December 14 | 58°F | 38°F | 21% | 14% | 10 h |
| December 15 | 58°F | 38°F | 21% | 14% | 10 h |
| December 16 | 58°F | 38°F | 21% | 14% | 10 h |
| December 17 | 57°F | 38°F | 21% | 14% | 10 h |
| December 18 | 57°F | 38°F | 21% | 14% | 10 h |
| December 19 | 57°F | 38°F | 21% | 13% | 10 h |
| December 20 | 57°F | 37°F | 21% | 13% | 10 h |
| December 21 | 57°F | 37°F | 21% | 13% | 10 h |
| December 22 | 57°F | 37°F | 21% | 13% | 10 h |
| December 23 | 56°F | 37°F | 21% | 13% | 10 h |
| December 24 | 56°F | 37°F | 21% | 13% | 10 h |
| December 25 | 56°F | 37°F | 21% | 13% | 10 h |
| December 26 | 56°F | 37°F | 22% | 13% | 10 h |
| December 27 | 56°F | 37°F | 22% | 13% | 10 h |
| December 28 | 56°F | 36°F | 22% | 13% | 10 h |
| December 29 | 56°F | 36°F | 22% | 13% | 10 h |
| December 30 | 56°F | 36°F | 22% | 13% | 10 h |
| December 31 | 56°F | 36°F | 22% | 13% | 10 h |
- Normal high
- 58°FDecember average
- Normal low
- 38°FDecember average
- Precipitation
- 2.84 inmonth total
- Days with precipitation
- 70.01 inch or more
- Snowfall
- 0.2 inmonth total
- Nights at 32°F or colder
- 8
- Daylight
- 10 h 10 min to 10 hDecember 1 to December 31
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003927; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Dallas in December?
On a given December day the chance of 0.01 inch or more is 21% on average, highest around December 30 (22%). In all, 2.84 in falls on 7 days of a normal December, 1 of them with an inch or more.
In a normal December in Dallas, 8 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 0.2 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003927.
How humid and windy is Dallas in December?
At 3 p.m. the normal temperature is 54°F with 46% relative humidity and a dew point of 34°F; at 6 a.m. it is 40°F with 76% humidity. The wind averages 10.3 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 40°F | 33°F | 76% | 9.3 mph | 41% |
| 9 a.m. | 42°F | 34°F | 73% | 10.2 mph | 35% |
| noon | 50°F | 34°F | 54% | 12.1 mph | 36% |
| 3 p.m. | 54°F | 34°F | 46% | 12.5 mph | 34% |
| 6 p.m. | 50°F | 34°F | 54% | 9.8 mph | 36% |
| 9 p.m. | 46°F | 34°F | 63% | 9.4 mph | 41% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00003927. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Dallas?
The warmest December temperature on Dallas's official record (since 1913) is 89°F, on December 24, 1955; the coldest is 1°F, on December 23, 1989. The wettest December brought 9.25 in (1991); the snowiest, 6.4 inches (1926).
The December mean against the 1991-2020 normal of 48.1°F: 2021 61.3°F (+13.2), 2022 50.7°F (+2.6), 2023 52.8°F (+4.7), 2024 53.7°F (+5.6), 2025 53.2°F (+5.1). 5 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 61.3°F | +13.2°F | 0.43 in |
| 2022 | 50.7°F | +2.6°F | 2.39 in |
| 2023 | 52.8°F | +4.7°F | 3.55 in |
| 2024 | 53.7°F | +5.6°F | 4.59 in |
| 2025 | 53.2°F | +5.1°F | 0.08 in |
Source: records: ACIS, NWS threaded record DALthr; recent months: ACIS, station USW00003927. Records and recent months use complete months only.
How does December in Dallas compare across Texas?
Across the 321 places PlainClimate covers in Texas, December normal highs run from 49°F in Dumas to 74°F in Brownsville; Dallas's is 58°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.