Climateby Month

Grand Prairie, TX climate by month

NOAA 1991-2020 normals · 519 ft elevation · also covers Lewisville

Grand Prairie has hot and humid summers and cool winters. Highs peak at 96°F in August and fall to 57°F in January. The wettest month is May (about 9 wet days) and the driest is July (about 4). Normal snowfall is about 1.6 in a year. By our comfort score the best months are March and April.

Warmest month
96°F
August normal high
Coldest month
36°F
January normal low
Wet days a year
79
37.0 in of precipitation
Snow a year
1.6 in
normal snowfall

How warm is Grand Prairie?

Normal highs range from 57°F in January to 96°F in August.

20°40°60°80°100° January: normal high 57°F (14°C), low 36°F (2°C) 57° 36° February: normal high 61°F (16°C), low 40°F (4°C) March: normal high 69°F (21°C), low 48°F (9°C) April: normal high 76°F (24°C), low 55°F (13°C) May: normal high 84°F (29°C), low 65°F (18°C) June: normal high 92°F (33°C), low 72°F (22°C) July: normal high 96°F (36°C), low 76°F (24°C) 96° 76° August: normal high 96°F (36°C), low 76°F (24°C) September: normal high 89°F (32°C), low 69°F (21°C) October: normal high 78°F (26°C), low 57°F (14°C) November: normal high 67°F (19°C), low 46°F (8°C) December: normal high 58°F (14°C), low 38°F (3°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Grand Prairie?

May has the most wet days (about 9); the year brings about 37 in of precipitation.

January: 7 wet days February: 7 wet days March: 8 wet days April: 7 wet days May: 9 wet days 9 June: 7 wet days July: 4 wet days 4 August: 5 wet days September: 5 wet days October: 7 wet days November: 6 wet days December: 7 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How much does it snow?

Normal snowfall is 1.6 in a year, most of it in February.

January: 0.1 in of snow February: 1.0 in of snow 1.0 March: 0.3 in of snow April: 0.0 in of snow 0.0 May: 0.0 in of snow June: 0.0 in of snow July: 0.0 in of snow August: 0.0 in of snow September: 0.0 in of snow October: 0.0 in of snow November: 0.0 in of snow December: 0.2 in of snow JFMAMJJASOND

How humid is Grand Prairie?

Muggy days peak in July, at about 27 days.

January: 0 muggy days 0 February: 0 muggy days March: 0 muggy days April: 3 muggy days May: 13 muggy days June: 24 muggy days July: 27 muggy days 27 August: 24 muggy days September: 14 muggy days October: 5 muggy days November: 1 muggy days December: 0 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Dallas/Ft Worth International Airport, 11 mi N of the city center.

How much daylight?

Daylight ranges from about 10.0 hours in December to 14.3 hours in June.

January: 10.3 hours of daylight February: 11.0 hours of daylight March: 12.0 hours of daylight April: 13.0 hours of daylight May: 13.8 hours of daylight June: 14.3 hours of daylight 14.3 July: 14.1 hours of daylight August: 13.3 hours of daylight September: 12.4 hours of daylight October: 11.4 hours of daylight November: 10.5 hours of daylight December: 10.0 hours of daylight 10.0 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Grand Prairie, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 57°F36°F 2.5 in7 0.1 in 0 10.3 h
February 61°F40°F 2.8 in7 1.0 in 0 11.0 h
March 69°F48°F 3.3 in8 0.3 in 0 12.0 h
April 76°F55°F 3.2 in7 0.0 in 3 13.0 h
May 84°F65°F 4.8 in9 0.0 in 13 13.8 h
June 92°F72°F 3.7 in7 0.0 in 24 14.3 h
July 96°F76°F 2.1 in4 0.0 in 27 14.1 h
August 96°F76°F 2.2 in5 0.0 in 24 13.3 h
September 89°F69°F 2.7 in5 0.0 in 14 12.4 h
October 78°F57°F 4.4 in7 0.0 in 5 11.4 h
November 67°F46°F 2.5 in6 0.0 in 1 10.5 h
December 58°F38°F 2.8 in7 0.2 in 0 10.0 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Grand Prairie

By our comfort score, the best months are March and April.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 54943
Feb 601142
Mar 681650
Apr 701451
May 53567
Jun 390522
Jul 370329
Aug 350328
Sep 422416
Oct 591154
Nov 641541
Dec 55942

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Grand Prairie

The last spring frost typically comes around Mar 2, and the first fall frost around Nov 29, leaving 272 frost-free days in a typical year.

Frost and freeze dates for Grand Prairie
Typical date1 year in 10
Last spring frost (32°F)Mar 2after Mar 19
First fall frost (32°F)Nov 29before Nov 10
Last hard freeze (28°F)Feb 18after Mar 9
First hard freeze (28°F)Dec 12before Nov 21
Frost-free season272 daysunder 246 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Dallas Love Fld (USW00013960), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Texas.

Hottest and coldest readings, 1991-2020

The highest reading was 111°F (September 4, 2000); the lowest was 8°F (February 4, 1996).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Grand Prairie

Similar climates elsewhere

Also covers

Lewisville uses the same temperature and rain stations as Grand Prairie, so its monthly numbers are the ones on this page.

Where the numbers come from

  • Temperature, rain, snowfall, humidity and wind by hour and cloud cover: Dallas Ft Worth Airport (USW00003927), 11 mi N of the city center, 560 ft . NOAA normals and daily records, 1991-2020.
  • Snow depth and frost dates: Dallas Love Fld (USW00013960), 11 mi NE of the city center, 440 ft (79 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Dallas/Ft Worth International Airport (722590-03927), 11 mi N of the city center, 544 ft . Hourly observations, 1991-2020.

Distances from the city center (USGS). Methodology · Report an error