Dallas, TX climate: monthly averages and frost dates
Dallas, TX has mild winters and hot summers by this site's scale, with moderate annual precipitation. The figures are the 1991–2020 climate normals for NOAA station USW00003927 (DALLAS FT WORTH AP), 16 mi (26 km) in a straight line from the city's center point (US Census).
- Warmest month high
- 95.8°F
- August
- Coldest month mean
- 46.3°F
- January
- Precipitation
- 37.0 in
- per year
- Snowfall
- 1.6 in
- per year
- Median last frost
- March 8
- 32°F, spring
- Median first frost
- November 24
- 32°F, autumn
Monthly averages in Dallas
| Month | High °F | Low °F | Mean °F | Precip. in | Snow in | Days ≥0.01 in | Days ≥90°F | Nights ≤32°F |
|---|---|---|---|---|---|---|---|---|
| January | 56.5 | 36.1 | 46.3 | 2.53 | 0.1 | 6.9 | 0.0 | 10.6 |
| February | 60.9 | 40.1 | 50.5 | 2.76 | 1.0 | 6.9 | 0.1 | 6.2 |
| March | 68.6 | 47.8 | 58.2 | 3.30 | 0.3 | 7.8 | 0.1 | 1.9 |
| April | 76.1 | 55.2 | 65.6 | 3.22 | 0.0 | 6.9 | 0.7 | 0.0 |
| May | 83.6 | 64.5 | 74.0 | 4.78 | 0.0 | 9.1 | 6.9 | 0.0 |
| June | 91.5 | 72.2 | 81.9 | 3.70 | 0.0 | 7.2 | 22.3 | 0.0 |
| July | 95.6 | 75.8 | 85.7 | 2.08 | 0.0 | 4.4 | 28.7 | 0.0 |
| August | 95.8 | 75.7 | 85.7 | 2.18 | 0.0 | 5.2 | 27.6 | 0.0 |
| September | 88.6 | 68.5 | 78.5 | 2.72 | 0.0 | 5.1 | 16.2 | 0.0 |
| October | 78.4 | 57.1 | 67.7 | 4.37 | 0.0 | 7.1 | 3.6 | 0.1 |
| November | 66.6 | 46.2 | 56.4 | 2.53 | 0.0 | 6.2 | 0.1 | 2.3 |
| December | 57.9 | 38.3 | 48.1 | 2.84 | 0.2 | 6.5 | 0.0 | 8.1 |
| Year | 76.7 | 56.5 | 66.6 | 37.01 | 1.6 | 79.3 | 106.2 | 29.2 |
How cold is winter in Dallas?
Winters in Dallas are mild by this site's scale (coldest-month mean 45 to under 60°F). The coldest month is January, with a mean temperature of 46.3°F (7.9°C), a normal daily high of 56.5°F (13.6°C) and a normal daily low of 36.1°F (2.3°C).
The station averages 29.2 nights a year at or below 32°F and 1.7 days when the high stays at or below 32°F.
How hot is summer in Dallas?
Summers in Dallas are hot by this site's scale (hottest-month high 90 to under 100°F). August has the highest normal daily high, 95.8°F (35.4°C), with nights averaging 75.7°F (24.3°C).
The high reaches 90°F or more on 106.2 days in a normal year.
The normal daily high itself is 90°F or above in June to August.
What is the wettest month in Dallas?
Dallas gets 37.01 in (940 mm) of precipitation in a normal year, which this site classes as moderate (20 to under 40 in a year). The wettest month is May with 4.78 in (121 mm); the driest is July with 2.08 in (53 mm).
Measurable precipitation (0.01 in or more) falls on 79.3 days a year.
Does it snow in Dallas?
Normal annual snowfall in Dallas is 1.6 in (4 cm), which this site classes as light (1 to under 12 in a year).
February is the snowiest month, with 1.0 in (3 cm).
A day with 1.0 in or more of snowfall comes 0.6 times a year on average.
Which months are mild in Dallas?
5 months in Dallas meet this site's comfort thresholds (normal high 65–85°F, low 45°F or higher, fewer than 10 days with 0.10 in or more of precipitation): March to May, October and November.
Thresholds and their limits: methodology.
Frost dates and growing season in Dallas
In Dallas the median last spring night at or below 32°F is March 8, and the median first autumn one is November 24 (NOAA P50 dates). NOAA's median length of the freeze-free season is 262 days. NOAA takes that median over each year's own season, so it need not equal the 261 days between the two median dates.
There is still a 10% chance of a 32°F night on or after March 26, and a 10% chance that the first one has come by November 6.
The chance that the last spring 32°F night comes on or after February 17 is 90%.
For a hard freeze (28°F or lower) the median dates are February 25 in spring and December 7 in autumn.
| Chance | Last spring 32°F night on or after | First autumn 32°F night by | Freeze-free season, days |
|---|---|---|---|
| 10% | March 26 | November 6 | 288 |
| 20% | March 19 | November 11 | 279 |
| 30% | March 15 | November 15 | 273 |
| 40% | March 12 | November 19 | 267 |
| 50% | March 8 | November 24 | 262 |
| 60% | March 4 | November 28 | 256 |
| 70% | February 28 | December 2 | 251 |
| 80% | February 24 | December 5 | 245 |
| 90% | February 17 | December 12 | 236 |
| Threshold | Median last date (spring) | Median first date (autumn or winter) | Median season, days |
|---|---|---|---|
| 36°F | March 21 | November 13 | 237 |
| 32°F | March 8 | November 24 | 262 |
| 28°F | February 25 | December 7 | 288 |
| 24°F | February 7 | December 24 | 319 |
| 20°F | January 24 | January 4 | 348 |
| 16°F | No such night in most years, though a few years have one; no typical season to show | ||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 100% | 94% | 69% | 4% | 0% | 0% | 0% | 0% | 0% | 3% | 64% | 100% |
Nearby and similar places
Of the places on this site, the closest to Dallas by station distance are Austin, TX at 183 mi (295 km), Houston, TX at 224 mi (361 km) and San Antonio, TX at 247 mi (398 km).
Among places whose winter, summer and precipitation words are each within one band of Dallas's (winter: mild, summer: hot, precipitation: moderate), the closest monthly temperature and precipitation patterns are Austin, TX, San Antonio, TX and Washington, DC.
Compared with Austin, TX, Dallas's peak-month normal high is 2.0°F (1.1°C) lower, its coldest-month mean is 5.9°F (3.3°C) lower, and its annual precipitation is 0.76 in more.
| Place | Listed as | Station distance | Coldest mean °F | Warmest high °F | Precip. in/yr | Snow in/yr | Last frost |
|---|---|---|---|---|---|---|---|
| Dallas, TX | this page | – | 46.3 | 95.8 | 37.0 | 1.6 | March 8 |
| Austin, TX | nearby, similar | 183 mi (295 km) | 52.2 | 97.8 | 36.2 | 0.2 | February 20 |
| Houston, TX | nearby | 224 mi (361 km) | 53.8 | 94.9 | 51.8 | 0.1 | February 13 |
| San Antonio, TX | nearby, similar | 247 mi (398 km) | 52.2 | 96.0 | 32.4 | 0.2 | February 26 |
| Washington, DC | similar | 1,189 mi (1,913 km) | 37.5 | 89.6 | 41.8 | 13.7 | March 24 |
How nearby and similar places are chosen: methodology.
Source and station
The data for Dallas come from NOAA station DALLAS FT WORTH AP, TX US (USW00003927) at 32.8978, -97.0189, elevation 560 ft (171 m). It lies 16 mi (26 km) in a straight line from the center point of Dallas city, the “internal point” in the US Census 2024 Gazetteer.
Each monthly normal used here rests on at least 24 years of data from 1991–2020 (NOAA's per-field year counts).
NOAA completeness flags on the monthly fields used here:
- S: Standard: meets WMO standards for data availability for 24 or more years.
Cite the data as:
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). Station USW00003927 (DALLAS FT WORTH AP, TX US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-09.
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020). Station USW00003927 (DALLAS FT WORTH AP, TX US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ek7-fk11. Accessed 2026-10-09.
Files used: monthly normals CSV, annual/seasonal normals CSV (retrieved 2026-10-09). The values on this page as JSON: /us/tx/dallas/data.json.