Annual mean 12°C · wettest around January · prevailing wind SW
Warmest
24.4 °C
Coldest
6.6 °C
Wettest
31%
Windiest
3.7 m/s
Prevailing
SW
3.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Dallas over the whole year is 12°C. July is the hottest month, with highs of about 25°C; February is the coldest, with lows of about 4°C. The rainy (wet) season in Dallas runs from October to April, peaking in January with a 34% chance of rain on a given day. The dry season is May to September; July is the driest month, at 13%. Winds in Dallas are highest in March, averaging 2.8 m/s (10 km/h), and lightest in September, at 2.2 m/s (8 km/h). The prevailing wind is from the SW. The clearest skies in Dallas come in July, when the sky is typically 25% covered; December is the cloudiest month, at 72%.
Month by month Dallas climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
8°C
4°C
4°C
34%
70%
2.7 m/s
1
0
28
February
8°C
4°C
4°C
31%
70%
2.7 m/s
0
0
30
March
10°C
5°C
7°C
30%
61%
2.8 m/s
6
0
49
April
14°C
7°C
10°C
26%
56%
2.7 m/s
21
1
71
May
17°C
10°C
15°C
19%
51%
2.5 m/s
50
7
82
June
21°C
13°C
19°C
17%
41%
2.6 m/s
70
16
73
July
25°C
14°C
23°C
13%
25%
2.7 m/s
79
38
54
August
25°C
14°C
23°C
13%
27%
2.4 m/s
77
41
49
September
21°C
12°C
19°C
18%
42%
2.2 m/s
81
17
73
October
16°C
8°C
13°C
25%
50%
2.2 m/s
40
2
81
November
10°C
6°C
7°C
31%
67%
2.5 m/s
6
0
51
December
7°C
4°C
4°C
32%
72%
2.6 m/s
0
0
26
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Dallas weather by season
Year round, Dallas has days of about 7°C at their warmest in December, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from 4°C to 14°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around January and least likely around July. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Dallas weather in winterDecember to February
High 7°CLow 4°CRain 32%
Winter in Dallas has typical daily highs of about 7°C and lows of about 4°C, with a 32% chance of rain on a given day.
Dallas weather in springMarch to May
High 14°CLow 7°CRain 25%
Spring in Dallas has typical daily highs of about 14°C and lows of about 7°C, with a 25% chance of rain on a given day.
Dallas weather in summerJune to August
High 23°CLow 14°CRain 14%
Summer in Dallas has typical daily highs of about 23°C and lows of about 14°C, with a 14% chance of rain on a given day.
Dallas weather in autumnSeptember to November
High 15°CLow 9°CRain 25%
Autumn in Dallas has typical daily highs of about 15°C and lows of about 9°C, with a 25% chance of rain on a given day.
When is the rainy season in Dallas?
The rainy (wet) season in Dallas runs from October to April, peaking in January with a 34% chance of rain on a given day. The dry season is May to September; July is the driest month, at 13%.
What time of year is Dallas windiest?
Winds in Dallas are highest in March, averaging 2.8 m/s (10 km/h), and lightest in September, at 2.2 m/s (8 km/h). The prevailing wind is from the SW.
What is the average temperature in Dallas year round?
The average temperature in Dallas over the whole year is 12°C. July is the hottest month, with highs of about 25°C; February is the coldest, with lows of about 4°C.