Annual mean 11°C · wettest around May · prevailing wind W
Warmest
27.4 °C
Coldest
-0.5 °C
Wettest
20%
Windiest
4.7 m/s
Prevailing
W
3.8 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -3°C. Dallas has no sharply defined rainy season: the chance of rain on a given day runs from 17% in January, the driest month, to 21% in May, the wettest. Winds in Dallas are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.1 m/s (8 km/h). The prevailing wind is from the W. The clearest skies in Dallas come in July, when the sky is typically 40% covered; January is the cloudiest month, at 63%.
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
-0°C
-3°C
-6°C
17%
63%
3.3 m/s
1
0
4
February
2°C
-2°C
-3°C
18%
56%
3.3 m/s
1
0
11
March
7°C
1°C
2°C
18%
54%
3.7 m/s
6
0
26
April
13°C
6°C
8°C
19%
54%
3.4 m/s
23
2
54
May
19°C
11°C
16°C
21%
52%
2.8 m/s
55
13
68
June
24°C
16°C
23°C
18%
42%
2.5 m/s
70
35
50
July
27°C
19°C
28°C
18%
40%
2.2 m/s
49
65
18
August
26°C
18°C
26°C
18%
43%
2.1 m/s
61
54
29
September
22°C
14°C
21°C
18%
44%
2.1 m/s
71
28
58
October
16°C
9°C
13°C
18%
52%
2.4 m/s
43
5
71
November
8°C
3°C
4°C
17%
50%
2.9 m/s
8
0
31
December
3°C
-1°C
-2°C
19%
61%
3.0 m/s
0
0
9
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 -0°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -3°C to 19°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around May and least likely around January. 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 2°CLow -2°CRain 18%
Winter in Dallas has typical daily highs of about 2°C and lows of about -2°C, with a 18% chance of rain on a given day.
Dallas weather in springMarch to May
High 13°CLow 6°CRain 19%
Spring in Dallas has typical daily highs of about 13°C and lows of about 6°C, with a 19% chance of rain on a given day.
Dallas weather in summerJune to August
High 26°CLow 18°CRain 18%
Summer in Dallas has typical daily highs of about 26°C and lows of about 18°C, with a 18% chance of rain on a given day.
Dallas weather in autumnSeptember to November
High 15°CLow 9°CRain 18%
Autumn in Dallas has typical daily highs of about 15°C and lows of about 9°C, with a 18% chance of rain on a given day.
When is the rainy season in Dallas?
Dallas has no sharply defined rainy season: the chance of rain on a given day runs from 17% in January, the driest month, to 21% in May, the wettest.
What time of year is Dallas windiest?
Winds in Dallas are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.1 m/s (8 km/h). The prevailing wind is from the W.
What is the average temperature in Dallas year round?
The average temperature in Dallas over the whole year is 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -3°C.