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Measurable snow is rare in Grand Prairie: the 1991–2020 normal is just 0.8 inch a year, and nights reach freezing on about 36 days a year. When snow or ice does arrive, it causes outsized trouble because roads are rarely treated — watch for Winter Weather Advisories and Freeze Warnings.
| Month | Snowfall | Days 1″+ | Days with snow cover | Freezing nights | Avg. low |
|---|---|---|---|---|---|
| November | 0″ | 0 | 0 | 3 | 46°F |
| December | 0.3″ | <1 | <1 | 11 | 39°F |
| January | 0.1″ | <1 | <1 | 12 | 37°F |
| February | 0.4″ | <1 | <1 | 7 | 40°F |
| March | 0″ | 0 | 0 | 2 | 48°F |
| Year | 0.8″ | <1 | <1 | 36 |
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Arlington Six Flags (4 mi from the city center, +3 ft elevation difference); temperatures at Arlington Muni Airport. Averages smooth out big years: single winters can bring half or double the normal.
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0.8 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Arlington Six Flags station, 4 miles away).
This page checks the National Weather Service for active alerts at Grand Prairie's location every time you open it; the box at the top lists any winter storm, winter weather, cold or freeze alert in effect right now.
About 36 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 37 °F.