Dallas Weather by Month: Temperatures, Rain & Crowds

Quick answer

For outdoor activities like hiking at Cedar Ridge Preserve or exploring the Dallas Arboretum, visit during March, April, October, or November. These months avoid the 35°C+ (95°F) heat of July and August and the freezing spells of January. May is the wettest month, averaging 124mm of rain, while July is the peak of high-season heat and humidity.

Dallas weather by month

Monthly breakdown

January

January is the coldest month, with temperatures often dropping below 0°C at night. Ice storms occasionally disrupt DART light rail services and flights at DFW Airport. Wear heavy coats and thermal layers. It is a period of low tourism, making it affordable for staying in Downtown or Uptown hotels, but outdoor dining in Deep Ellum is limited to heated patios.

February

Weather remains unpredictable. One day may reach 20°C, followed by a sharp cold front. The Dallas Marathon often brings runners to the streets, but generally, this is a month for indoor museums like the Perot Museum of Nature and Science. Carry a windbreaker to handle the North Texas gusts.

March

Spring arrives with blooming tulips at the Dallas Arboretum. Highs of 20°C are common, perfect for the St. Patrick’s Day Parade on Greenville Avenue. This is the start of prime hiking season at White Rock Lake. A light jacket is necessary for evenings, but daytime allows for t-shirts.

April

April offers the most consistent pleasant weather for city walking and patio dining in the Bishop Arts District. Average highs of 25°C are comfortable, though this starts the peak tornado season. Check local radar if skies turn dark. Wear breathable cotton and comfortable walking shoes for the 1.5km walk between Klyde Warren Park and the Arts District.

May

May is the wettest month. Heavy thunderstorms and flash flooding can occur, sometimes delaying outdoor events like the Wildflower! Arts & Music Festival in nearby Richardson. Bring a high-quality umbrella and waterproof footwear. Humidity begins to rise significantly, making the air feel heavier.

June

Summer heat begins in earnest. Highs average 33°C, and the humidity makes mid-afternoon walking uncomfortable. This is the start of 'pool season' at hotels like The Joule or Omni. Plan outdoor sightseeing for before 10:00 or after 19:00. Light, moisture-wicking fabrics are essential.

July

July is consistently hot with highs reaching 36°C (97°F) or higher. Indoor attractions like the Dallas Museum of Art (free general admission) or the Galleria Dallas ice rink are preferred. Hydration is critical if walking the Katy Trail. Expect high electricity surcharges in short-term rentals due to air conditioning use.

August

Heat persists, but the air is slightly drier than June. This is the quietest month for foot traffic in the Design District as locals stay indoors. If visiting, use the M-Line Trolley to move between West Village and the Arts District in air-conditioned comfort. High SPF sunblock is mandatory.

September

Temperatures begin a slow descent, though early September often mirrors August. The State Fair of Texas begins late in the month at Fair Park. Entry tickets usually range from $15 to $25 (approx. £12-£20). Wear casual summer clothing but bring a layer for air-conditioned indoor exhibits.

October

October is widely considered the best month to visit. The weather cools to a comfortable 26°C. It is the peak season for festivals and outdoor concerts. The State Fair continues, and the pumpkin displays at the Arboretum are a major draw. Light sweaters are needed once the sun sets.

November

Autumn colours appear in the Trinity River Audubon Center. Highs of 19°C are excellent for hiking and biking. It is significantly drier than May or October. A medium-weight jacket is required, especially for football games at AT&T Stadium in nearby Arlington where wind can be sharp in the parking lots.

December

December is crisp and festive. While snow is rare, temperatures average 14°C during the day and can hit freezing at night. The Dallas Holiday Parade attracts large crowds downtown. Pack a warm coat and gloves for the evening light displays at Highland Park. Check official sites for specific event dates and ticket prices.

Common mistakes

• Underestimating the sun: Even in March or October, the Texas sun is intense. You can burn in 20 minutes without protection while walking between museums.
• Ignoring the humidity: A 30°C day in Dallas feels significantly hotter than a 30°C day in a desert climate like Phoenix due to moisture from the Gulf of Mexico.
• Packing only summer clothes: Between November and March, 'blue northers' (sudden cold fronts) can drop temperatures by 20 degrees in a single afternoon.
• Walking long distances in summer: The walk from Victory Park to Deep Ellum is roughly 3km. In July, this can lead to heat exhaustion; use the DART Green Line instead.
• Assuming it won't rain: May and October see heavy downpours that can soak through light clothing in seconds. Always have a backup indoor plan.

Plan your trip

Journey Planner turns this guide into a personalised day-by-day itinerary for your dates and group. You get monthly weather for your travel month, estimated flight, hotel and attraction costs in your currency, outfit ideas and a packing list for the season — free, no login required.