Weather in Grapevine

In Grapevine, the summers are hot and muggy, the winters are cold and windy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 37°F to 96°F and is rarely below 24°F or above 102°F. The best time of year to visit Grapevine for some hot-weather activities is from late-May to mid-September.


The hot season lasts for 3.4 months, from June 2 to September 16, with an average daily high temperature above 88°F. The hottest day of the year is July 27, with an average high of 96°F and low of 77°F. The cool season lasts for 3.0 months, from November 24 to February 24, with an average daily high temperature below 64°F. The coldest day of the year is January 5, with an average low of 37°F and high of 56°F.


To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered on each day of the year. Grapevine experiences significant seasonal variation in monthly rainfall. Rain falls throughout the year in Grapevine. The most rain falls during the 31 days centered on May 19, with an average total accumulation of 4.2 inches.


In Grapevine, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. The clearer part of the year in Grapevine begins around May 27 and lasts for 5.5 months, ending around November 12. On October 4, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 74% of the time, and overcast or mostly cloudy 26% of the time. The cloudier part of the year begins around November 12 and lasts for 6.5 months, ending around May 27. On February 24, the cloudiest day of the year, the sky is overcast or mostly cloudy 45% of the time, and clear, mostly clear, or partly cloudy 55% of the time.


Grapevine experiences extreme seasonal variation in the perceived humidity. The muggier period of the year lasts for 5.3 months, from April 28 to October 5, during which time the comfort level is muggy, oppressive, or miserable at least 20% of the time. The muggiest day of the year is July 2, with muggy conditions 82% of the time. The least muggy day of the year is January 21, when muggy conditions are essentially unheard of.