Grayson County (Sherman)
December
Weather in Grayson County, Texas for December 2025
Your guide to Grayson County weather in December - trends and predictions
In general, the average temperature in Grayson County at the beginning of December is 12.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.7 °F by the end of December.
The climate of Grayson County in December is notably wet, with an average of 12 rainy days, and a total of 125.6 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
14°/6°
Temperatures
22 km/h
Avg max wind
75 %
Avg humidity
Grayson County Weather December
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Temperatures trend during December in Grayson County
See the weather trend as well as the moving average line
December weather in Grayson County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Sunny | 13° /0° | 0 mm | 4 | |
| Dec. 2 | Sunny | 16° /2° | 0 mm | 5 | |
| Dec. 3 | Sunny | 13° /-1° | 0 mm | 4 | |
| Dec. 4 |  Patchy rain possible | 12° /8° | 1 mm | 3 | |
| Dec. 5 | Sunny | 10° /4° | 0 mm | 4 | |
| Dec. 6 |  Cloudy | 10° /-1° | 0 mm | 3 | |
| Dec. 7 |  Heavy rain at times | 11° /5° | 2 mm | 3 | |
| Dec. 8 |  Moderate or heavy rain shower | 15° /6° | 5.6 mm | 4 | |
| Dec. 9 |  Overcast | 14° /8° | 0 mm | 3 | |
| Dec. 10 | Overcast | 9° /3° | 0 mm | 2 | |
| Dec. 11 | Sunny | 14° /0° | 0 mm | 4 | |
| Dec. 12 | Overcast | 15° /2° | 0 mm | 4 | |
| Dec. 13 | Patchy rain possible | 13° /8° | 0.4 mm | 3 | |
| Dec. 14 | Moderate or heavy rain shower | 19° /10° | 3.7 mm | 4 | |
| Dec. 15 | Overcast | 19° /6° | 0 mm | 4 | |
| Dec. 16 | Heavy rain at times | 18° /12° | 5.2 mm | 4 | |
| Dec. 17 | Patchy rain possible | 18° /10° | 0.1 mm | 4 | |
| Dec. 18 | Heavy rain at times | 15° /5° | 21.7 mm | 3 | |
| Dec. 19 | Overcast | 11° /-1° | 0 mm | 3 | |
| Dec. 20 | Sunny | 10° /3° | 0 mm | 4 | |
| Dec. 21 | Sunny | 12° /-1° | 0 mm | 4 | |
| Dec. 22 | Sunny | 13° /0° | 0 mm | 4 | |
| Dec. 23 | Overcast | 14° /10° | 0.5 mm | 3 | |
| Dec. 24 | Moderate or heavy rain shower | 16° /11° | 27.9 mm | 4 | |
| Dec. 25 | Patchy rain possible | 12° /8° | 1.2 mm | 3 | |
| Dec. 26 | Moderate or heavy rain shower | 15° /11° | 52.4 mm | 4 | |
| Dec. 27 | Overcast | 16° /9° | 0 mm | 4 | |
| Dec. 28 | Moderate or heavy rain shower | 18° /9° | 3.8 mm | 4 | |
| Dec. 29 | Overcast | 15° /8° | 0 mm | 4 | |
| Dec. 30 | Overcast | 21° /10° | 0 mm | 5 | |
| Dec. 31 | Sunny | 13° /6° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Grayson County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grayson County forecast closer to your planned date for the most up-to-date weather information.
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Grayson County in December - FAQ
What are the expected maximum and minimum temperatures in Grayson County during December?
During December, expect a variety of temperatures with highs around 14° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Grayson County during December?
Significant rainfall exceeding 125.6 mm is expected in Grayson County during December, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Grayson County during December?
The average wind speed in Grayson County during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Grayson County
Explore the daily rainfall trends and prepare for Grayson Countys December weather 💧
UV exposure in Grayson County during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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