Climate - Dallas (Texas)

The climate of Dallas is subtropical, with quite mild winters and very hot, muggy summers.
The city is located in northern Texas, in the flat part (the eastern one).
Winter from December to February, is mild, with many sunny days. There can be warm days even in the middle of winter, during which the temperature can reach or exceed 25 °C (77 °F).
However, from November to March it can get cold at night, and the temperature can drop below freezing. Occasionally, there may be real cold waves, which last a few days, during which the temperature can drop to -10 °C (14 °F) or below. At Fort Worth Airport, the coldest record is -18.9 °C (-2 °F) and was set in February 2021.
Sometimes, the dangerous phenomenon of freezing rain can occur.
Snow in Dallas is quite rare. On average, 4 cm (1.5 in) of snow fall per year. In February 2011, 28 cm (11 in) of snow fell. In February 2021, 8 cm (3 in) of snow fell and the temperature remained around freezing or below for 9 days in a row.
In summer, from June to September, the combination of high temperature and humidity makes the heat very unpleasant. On the hottest days, it can reach and exceed 40 °C (104 °F). The record is 45 °C (113 °F), set at the end of June 1980.
From time to time, the city can be reached by the remnants of a hurricane, coming from the Gulf of Mexico or the Pacific. In general, hurricanes weaken when they penetrate inland, however, they can still bring abundant rains. The hurricane season runs from June to November, although they are more likely from August to October, with a peak in September.
Dallas is located in the "tornado alley", so tornadoes can occasionally occur in the April-June period (and more rarely in autumn).
The average temperature of the coldest month (January) is of 7.9 °C (46 °F), that of the warmest months (July, August) is of 29.8 °C (86 °F). Here are the average temperatures.

Precipitation amounts to 940 millimeters (37 inches) per year: so, it is at an intermediate level. The rainiest seasons are spring and autumn, due to the clash of air masses. Here is the average precipitation.

On average, there are around 2,850 sunshine hours per year. So Dallas is a sunny city. Here are the average sunshine hours per day.

Best Time

To visit Dallas, you can choose spring and autumn (in particular, from mid-March to mid-April and from mid-October to mid-November), to avoid the summer heat as well as the possible cold in winter.

Return to the climate of Texas.

Dallas - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Dallas is usually quite mild. The average temperature is of 7.9 °C (46 °F), with a minimum of 2.3 °C (36.1 °F) and a maximum of 13.6 °C (56.5 °F).
On the coldest nights of the month, the temperature usually drops to around -6.5 °C (20.5 °F). However, it dropped to -10.6 °C (12.9 °F) in January 1991.
On the warmest days of the month, the temperature usually reaches around 25 °C (77 °F). However, it reached 29 °C (84.2 °F) in January 2009.
Precipitation amounts to 65 mm (2.6 in), distributed over 7 days.
The day lasts on average 10 hours and 20 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 63%.
The average wind speed is 17 kph (11 mph).

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In February, the weather in Dallas is usually mild. The average temperature is of 10.3 °C (51 °F), with a minimum of 4.5 °C (40.1 °F) and a maximum of 16.1 °C (60.9 °F).
On the coldest nights of the month, the temperature usually drops to around -4 °C (25 °F). However, it dropped to -13.4 °C (7.9 °F) in February 1996.
On the warmest days of the month, the temperature usually reaches around 27 °C (80.5 °F). However, it reached 35 °C (95 °F) in February 1996.
Precipitation amounts to 70 mm (2.8 in), distributed over 7 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 63%.
The average wind speed is 18 kph (11 mph).

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In March, the weather in Dallas is usually very mild. The average temperature is of 14.6 °C (58 °F), with a minimum of 8.8 °C (47.8 °F) and a maximum of 20.3 °C (68.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -1.5 °C (29.5 °F). However, it dropped to -9 °C (15.8 °F) in March 2002.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 30 °C (86 °F). However, it reached 35.6 °C (96.1 °F) in March 1991.
Precipitation amounts to 85 mm (3.3 in), distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 61%.
The average wind speed is 19 kph (12 mph).

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In April, the weather in Dallas is usually warm. The average temperature is of 18.7 °C (66 °F), with a minimum of 12.9 °C (55.2 °F) and a maximum of 24.5 °C (76.1 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 4.5 °C (40 °F). However, it dropped to 0.6 °C (33.1 °F) in April 1997.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 31.5 °C (89 °F). However, it reached 38.3 °C (100.9 °F) in April 2006.
Precipitation amounts to 80 mm (3.1 in), distributed over 7 days.
The day lasts on average 13 hours and 0 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 62%.
The average wind speed is 20 kph (12 mph).

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In May, the weather in Dallas is usually warm to hot. The average temperature is of 23.4 °C (74 °F), with a minimum of 18.1 °C (64.5 °F) and a maximum of 28.7 °C (83.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 10 °C (50 °F). However, it dropped to 3.9 °C (39 °F) in May 2013.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 35 °C (95 °F). However, it reached 38 °C (100.4 °F) in May 1998.
Precipitation amounts to 120 mm (4.7 in), distributed over 9 days.
The day lasts on average 13 hours and 55 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 66%.
The average wind speed is 18 kph (11 mph).

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In June, the weather in Dallas is usually very hot. The average temperature is of 27.7 °C (82 °F), with a minimum of 22.3 °C (72.2 °F) and a maximum of 33.1 °C (91.5 °F).
On the coldest nights, the temperature usually drops to around 17.5 °C (63 °F). However, it dropped to 14 °C (57.2 °F) in June 1998.
On the warmest days, the temperature usually reaches around 37 °C (98.5 °F). However, it reached 41.1 °C (106 °F) in June 2012.
Precipitation amounts to 95 mm (3.7 in), distributed over 7 days.
The day lasts on average 14 hours and 20 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 10 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 63%.
The average wind speed is 17 kph (11 mph).

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In July, the weather in Dallas is usually very hot. The average temperature is of 29.8 °C (86 °F), with a minimum of 24.3 °C (75.8 °F) and a maximum of 35.3 °C (95.6 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (69.5 °F). However, it dropped to 17.2 °C (63 °F) in July 1995.
On the warmest days of the month, the temperature usually reaches around 39.5 °C (103 °F). However, it reached 43 °C (109.4 °F) in July 1998.
Precipitation amounts to 55 mm (2.2 in), distributed over 4 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 10.5 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 57%.
The average wind speed is 16 kph (10 mph).

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In August, the warmest month of the year, the weather in Dallas is usually very hot. The average temperature is of 29.9 °C (86 °F), with a minimum of 24.3 °C (75.7 °F) and a maximum of 35.4 °C (95.8 °F).
On the coldest nights of the month, the temperature usually drops to around 20 °C (68.5 °F). However, it dropped to 15 °C (59 °F) in August 1992.
On the warmest days of the month, the temperature usually reaches around 40 °C (104 °F). However, it reached 43.3 °C (109.9 °F) in August 2011.
Precipitation amounts to 55 mm (2.2 in), distributed over 5 days.
The day lasts on average 13 hours and 20 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 56%.
The average wind speed is 14 kph (9 mph).

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In September, the weather in Dallas is usually warm to hot. The average temperature is of 25.9 °C (79 °F), with a minimum of 20.3 °C (68.5 °F) and a maximum of 31.4 °C (88.6 °F).
On the coldest nights, the temperature usually drops to around 13 °C (55.5 °F). However, it dropped to 6.7 °C (44.1 °F) in September 1995.
On the warmest days, the temperature usually reaches around 37 °C (99 °F). However, it reached 43.9 °C (111 °F) in September 2000.
Precipitation amounts to 70 mm (2.8 in), distributed over 5 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 60%.
The average wind speed is 14 kph (8 mph).

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In October, the weather in Dallas is usually warm. The average temperature is of 19.9 °C (68 °F), with a minimum of 13.9 °C (57.1 °F) and a maximum of 25.8 °C (78.4 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 5.5 °C (41.5 °F). However, it dropped to -1.7 °C (28.9 °F) in October 1993.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 34 °C (93 °F). However, it reached 37.8 °C (100 °F) in October 2008.
Precipitation amounts to 110 mm (4.3 in), distributed over 7 days.
The day lasts on average 11 hours and 20 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 61%.
The average wind speed is 15 kph (10 mph).

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In November, the weather in Dallas is usually mild. The average temperature is of 13.6 °C (56 °F), with a minimum of 7.9 °C (46.2 °F) and a maximum of 19.2 °C (66.6 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -1 °C (30 °F). However, it dropped to -5.6 °C (21.9 °F) in November 2014.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 28.5 °C (83.5 °F). However, it reached 34.4 °C (93.9 °F) in November 2017.
Precipitation amounts to 65 mm (2.6 in), distributed over 6 days.
The day lasts on average 10 hours and 30 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 64%.
The average wind speed is 17 kph (10 mph).

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In December, the weather in Dallas is usually mild. The average temperature is of 8.9 °C (48 °F), with a minimum of 3.5 °C (38.3 °F) and a maximum of 14.4 °C (57.9 °F).
On the coldest nights of the month, the temperature usually drops to around -4.5 °C (23.5 °F). However, it dropped to -9.4 °C (15.1 °F) in December 2005.
On the warmest days of the month, the temperature usually reaches around 25.5 °C (78 °F). However, it reached 32 °C (89.6 °F) in December 2005.
Precipitation amounts to 70 mm (2.8 in), distributed over 6 days.
The day lasts on average 10 hours and 0 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 5.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 64%.
The average wind speed is 16 kph (10 mph).