Del Rio weather in December: Del Rio, Texas: normal highs, lows, rain and records for December
Del Rio in December has a normal high of 68°F and a normal low of 44°F, a daily mean of 56°F, falling from 70°F on the 1st to 67°F by the 31st. Measurable precipitation falls on 4 days in a normal December, 0.70 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 7°C, 18 mm of precipitation in December.
- NOAA stationDel Rio International Airport
- Station IDUSW00022010
- Location29.38°N 100.93°W
- Elevation999 ft (305 m)
- Population34,678
- Jan 68° 44°
- Feb 73° 48°
- Mar 80° 56°
- Apr 87° 63°
- May 93° 71°
- Jun 98° 77°
- Jul 100° 79°
- Aug 101° 79°
- Sep 94° 73°
- Oct 86° 64°
- Nov 75° 53°
- Dec 68° 44°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Del Rio in December?
The normal high is 68°F and the normal low 44°F, for a daily mean of 56.1°F. December is 7.6°F cooler than November and 0.5°F warmer than January. December is the 11th warmest month of the year in Del Rio and the 10th wettest. Across the month the normal high falls 3°F, from 70°F on December 1 to 67°F on December 31. From one year to the next December's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 54°F and 59°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 14%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 70°F | 47°F | 14% | 5% |
| December 8 | 69°F | 45°F | 13% | 5% |
| December 15 | 68°F | 44°F | 13% | 4% |
| December 22 | 67°F | 43°F | 14% | 4% |
| December 31 | 67°F | 43°F | 14% | 4% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 70°F | 47°F | 14% | 5% | 10 h 20 min |
| December 2 | 70°F | 47°F | 14% | 5% | 10 h 20 min |
| December 3 | 70°F | 47°F | 13% | 5% | 10 h 20 min |
| December 4 | 70°F | 46°F | 13% | 5% | 10 h 20 min |
| December 5 | 69°F | 46°F | 13% | 5% | 10 h 20 min |
| December 6 | 69°F | 46°F | 13% | 5% | 10 h 20 min |
| December 7 | 69°F | 46°F | 13% | 5% | 10 h 20 min |
| December 8 | 69°F | 45°F | 13% | 5% | 10 h 20 min |
| December 9 | 69°F | 45°F | 13% | 5% | 10 h 20 min |
| December 10 | 68°F | 45°F | 13% | 5% | 10 h 20 min |
| December 11 | 68°F | 45°F | 13% | 5% | 10 h 20 min |
| December 12 | 68°F | 45°F | 13% | 5% | 10 h 20 min |
| December 13 | 68°F | 44°F | 14% | 5% | 10 h 20 min |
| December 14 | 68°F | 44°F | 14% | 5% | 10 h 20 min |
| December 15 | 68°F | 44°F | 13% | 4% | 10 h 20 min |
| December 16 | 68°F | 44°F | 13% | 4% | 10 h 20 min |
| December 17 | 67°F | 44°F | 13% | 4% | 10 h 20 min |
| December 18 | 67°F | 44°F | 14% | 4% | 10 h 20 min |
| December 19 | 67°F | 44°F | 14% | 4% | 10 h 20 min |
| December 20 | 67°F | 44°F | 14% | 4% | 10 h 20 min |
| December 21 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 22 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 23 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 24 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 25 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 26 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 27 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 28 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 29 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 30 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
| December 31 | 67°F | 43°F | 14% | 4% | 10 h 20 min |
- Normal high
- 68°FDecember average
- Normal low
- 44°FDecember average
- Precipitation
- 0.70 inmonth total
- Days with precipitation
- 40.01 inch or more
- Nights at 32°F or colder
- 4
- Daylight
- 10 h 20 min to 10 h 20 minDecember 1 to December 31
- Days at 70°F or more
- 10
- Days at 80°F or more
- 1
- Sunshine
- 76%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00022010; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Del Rio in December?
On a given December day the chance of 0.01 inch or more is 14% on average, highest around December 23 (14%). In all, 0.70 in falls on 4 days of a normal December.
In a normal December in Del Rio, 4 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00022010.
How humid and windy is Del Rio in December?
At 3 p.m. the normal temperature is 61°F with 37% relative humidity and a dew point of 35°F; at 6 a.m. it is 44°F with 74% humidity. The wind averages 7.1 mph, most often from the east-southeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 44°F | 36°F | 74% | 6.1 mph | 57% |
| 9 a.m. | 46°F | 36°F | 70% | 6.4 mph | – |
| noon | 55°F | 37°F | 50% | 9.2 mph | 56% |
| 3 p.m. | 61°F | 35°F | 37% | 9.7 mph | – |
| 6 p.m. | 59°F | 35°F | 41% | 7.0 mph | 76% |
| 9 p.m. | 52°F | 36°F | 55% | 6.1 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00022010. 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 Del Rio?
The warmest December temperature on Del Rio's official record (since 1905) is 91°F, on December 14, 2019; the coldest is 10°F, on December 23, 1989. The wettest December brought 3.93 in (1937).
The December mean against the 1991-2020 normal of 56.1°F: 2021 65.5°F (+9.4), 2022 56.9°F (+0.8), 2023 58.3°F (+2.2), 2024 60.9°F (+4.8), 2025 59.0°F (+2.9). 5 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.5°F | +9.4°F | 0.26 in |
| 2022 | 56.9°F | +0.8°F | 0.00 in |
| 2023 | 58.3°F | +2.2°F | 0.62 in |
| 2024 | 60.9°F | +4.8°F | 0.18 in |
| 2025 | 59.0°F | +2.9°F | 0.01 in |
Source: records: ACIS, NWS threaded record DRTthr; recent months: ACIS, station USW00022010. Records and recent months use complete months only.
How does December in Del Rio 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; Del Rio's is 68°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.