Dallas, TX Climate & Monthly Averages
The climate of Dallas
A 22°C spread between its warmest and coolest months puts Dallas among the more strongly seasonal places we cover. July averages 95°F (35°C) by day; January averages 56°F (13°C), with nights at 38°F (3°C).
Climate quick facts
- Hottest month: July - highs near 95°F (35°C)
- Coldest month: January - highs near 56°F (13°C)
- Decade extremes (2015-2024): 109°F (43°C) high · -2°F (-19°C) low
- Wettest month: May (14 rainy days) · Sunniest: July (12.2 h sun/day)
- Climate type: humid subtropical
- Annual swing: 22°C between the average warmest and coolest month · day to night: 10°C
- Months averaging 30°C or hotter: 4
- Average humidity: 66%
Temperatures through the year
January bottoms out at 56°F (13°C) in daylight, 38°F (3°C) after dark. At its warmest, in July, Dallas runs to 95°F (35°C) in the afternoon and back to 78°F (25°C) by dawn. The gridded 2015-2024 daily record for this location tops out at 109°F (43°C) and bottoms at -2°F (-19°C) - decade extremes, not all-time station records. Snowfall is rare but not unheard of.
Rain, sun and snow
July is the brightest month at 12.2 hours of sun a day, against an annual average of 9.2. Four of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is March through April. Average highs hold at or above 30°C for 4 months of the year, June through September being the unbroken run.
How Dallas compares
- Dallas sits close to the middle of our dataset on most measures: 67°F (20°C) as an annual average, 55.1 inches (1400 mm) of precipitation and 9.2 hours of sun a day.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 56° | 38° | 7 | 2.6 in | 7.3 h/day | 10.2 h | 22% | 65% |
| February | 60° | 41° | 9 | 4.1 in | 7.1 h/day | 11.0 h | 33% | 67% |
| March | 69° | 51° | 11 | 4.7 in | 8.1 h/day | 11.9 h | 35% | 67% |
| April | 75° | 56° | 12 | 6.2 in | 9.2 h/day | 13.0 h | 40% | 67% |
| May | 83° | 65° | 14 | 7.7 in | 9.5 h/day | 13.8 h | 45% | 73% |
| June | 90° | 73° | 10 | 4.9 in | 11.4 h/day | 14.3 h | 35% | 69% |
| July | 95° | 78° | 9 | 2.5 in | 12.2 h/day | 14.1 h | 28% | 61% |
| August | 95° | 78° | 9 | 4.3 in | 11.6 h/day | 13.3 h | 29% | 60% |
| September | 89° | 72° | 8 | 3.9 in | 10.4 h/day | 12.3 h | 27% | 63% |
| October | 79° | 61° | 8 | 6.2 in | 9.2 h/day | 11.3 h | 25% | 61% |
| November | 67° | 49° | 8 | 4.4 in | 7.5 h/day | 10.4 h | 28% | 69% |
| December | 60° | 43° | 8 | 3.4 in | 6.9 h/day | 10.0 h | 26% | 69% |
Dallas month by month
Average high and low for each month, with the bar showing where it sits in Dallas's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 7 days
- Sunshine
- 7.3 h
- Daylight
- 10.2 h
February
- Rain
- 9 days
- Sunshine
- 7.1 h
- Daylight
- 11.0 h
March
- Rain
- 11 days
- Sunshine
- 8.1 h
- Daylight
- 11.9 h
April
- Rain
- 12 days
- Sunshine
- 9.2 h
- Daylight
- 13.0 h
May
- Rain
- 14 days
- Sunshine
- 9.5 h
- Daylight
- 13.8 h
June
- Rain
- 10 days
- Sunshine
- 11.4 h
- Daylight
- 14.3 h
July
- Rain
- 9 days
- Sunshine
- 12.2 h
- Daylight
- 14.1 h
August
- Rain
- 9 days
- Sunshine
- 11.6 h
- Daylight
- 13.3 h
September
- Rain
- 8 days
- Sunshine
- 10.4 h
- Daylight
- 12.3 h
October
- Rain
- 8 days
- Sunshine
- 9.2 h
- Daylight
- 11.3 h
November
- Rain
- 8 days
- Sunshine
- 7.5 h
- Daylight
- 10.4 h
December
- Rain
- 8 days
- Sunshine
- 6.9 h
- Daylight
- 10.0 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Dallas
Spring (March through May)
Spring is mild and warm here - highs near 76°F (24°C), nights near 57°F (14°C), and rain falls on around 37 of the 90 days.
Summer (June through August)
Summer in Dallas runs at full heat, with daytime highs averaging 93°F (34°C) and nights around 76°F (25°C); expect showers on roughly 28 days across the season. Daylight is generous - around 11.7 hours of sun a day.
Fall (September through November)
Through fall, Dallas is mild and warm: 78°F (26°C) by day, 61°F (16°C) after dark, and expect showers on roughly 24 days across the season.
Winter (December through February)
Winter in Dallas stays on the cool side of mild, with daytime highs averaging 59°F (15°C) and nights around 41°F (5°C); expect showers on roughly 24 days across the season.
Climate questions, answered
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What should I pack for Dallas?
How humid does Dallas get?
How many rainy days does Dallas get in a year?
Best time to visit Dallas
The best time to visit Dallas is generally February to April and October to December, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window sit near 69°F (20°C), with rain on about 9 days a month. For the same question asked the other way round, see where else is warm in February.
Pack for Dallas with lightweight, breathable clothing and serious sun protection, a warm jacket and layers for the cooler season and a compact umbrella or rain shell. Even in July, lows of 78°F (25°C) make an extra layer worth the space.
Dallas temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.