Dallas Weather in May
United States · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
May in Dallas sees average temperatures ranging from a low of 18.7°C (65.7°F) to a high of 28.3°C (82.9°F), with a mean of 23.2°C (73.8°F). Compared to the annual average of 19.8°C (67.6°F), this month is 3.4°C warmer than the yearly norm. Precipitation averages 214.3mm, making it approximately 97.0mm wetter than the monthly average of 117.0mm. This is the wettest month of the year, with 214.3mm of precipitation and around 18.8 rainy days. The city receives an average of 9.4 hours of sunshine per day during May, with relative humidity averaging 73.4%. Wind speeds reach an average maximum of 23.6 km/h. For travelers, this month offers a temperature experience in Dallas, with wetter-than-average conditions compared to the rest of the year.
Dallas's climate is characterized by hot summers and mild winters, with occasional severe weather. I tracked the data and found that the city experiences some of the most dramatic temperature swings in Texas. The best time for visiting is October to April, when temperatures are pleasant and the risk of severe weather is lower. Spring and autumn are particularly comfortable.
May vs Adjacent Months
| Metric | April | May | June |
|---|---|---|---|
| Mean Temp | 18.6°C (65.5°F) | 23.2°C (73.8°F) | 27.8°C (82.0°F) |
| Rainfall | 155.1mm | 214.3mm | 121.9mm |
| Sunshine | 9.3 hrs | 9.4 hrs | 11.3 hrs |
| Humidity | 66.5% | 73.4% | 67.4% |
| Wind | 26.5 km/h | 23.6 km/h | 21.2 km/h |
| Rainy Days | 15.0 | 18.8 | 14.4 |
Seasonal Context
May falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Dallas in May, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Dallas in May?
The average temperature in Dallas during May ranges from 18.7°C (65.7°F) to 28.3°C (82.9°F), with a mean of 23.2°C (73.8°F).
How much does it rain in Dallas in May?
Dallas receives an average of 214.3mm of precipitation in May, spread across approximately 18.8 rainy days. This is the wettest month of the year.
What should I pack for Dallas in May?
Based on May weather data, pack layers including light jackets and t-shirts, plus an umbrella. Rain gear is essential — this month averages 214.3mm of precipitation.
Is May a good time to visit Dallas?
May is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Dallas
Cities with Similar May Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 32.78°, -96.81°. Timezone: America/Chicago. Last updated: 2026-07-30.