Texas climate guide

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Below are average maximum temperatures at popular destinations in Texas for next month - October. Select a destination to see the climate guide for all months of the year.

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The climate guide for Texas shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Texas climate overview

Texas, located in the central south of the country, is the largest state on the United States mainland and larger than any country in Europe other than Russia. Famous for its cattle and its oil it is not surprisingly also one of the wealthiest states in the US.

The climate of Texas is varied ranging from fairly wet in the east to very dry in the west. There are also large variations of temperature from summer to winter in all places.

In the west the Sierra Madre mountains and central plateau of Mexico are an effective barrier to any major rainfall reaching Texas from the south-west. The result is a swathe of subtropical desert along the border with Mexico, particularly along the northern stretches of the Rio Grande, south of El Paso.

These arid conditions extend southwards towards the Gulf of Mexico but gradually disappear as rainfall from the Gulf reaches inland. From Brownsville in the far south rainfall increases significantly northwards along the Gulf, and the parched landscape soon gives way to croplands, fields of rice and cotton, and eventually to pine forests to the east of Houston.

The coastal plain itself is a rich farming area that stretches inland to San Antonio and north towards Dallas and the Oklahoma border. Rainfall peaks at two different times of the year through most of this area, first in the early summer, in May and June, and then in September and October.

From June to September maximum daytime temperatures are usually very hot with very high levels of heat and humidity. There is plenty of sunshine, with up to 10 hours each day on average through June and July. In winter it is a lot cooler and temperatures can fall significantly from time to time when frontal systems move south from the Great Plains towards the Gulf of Mexico.

Inland towards the north-west of the state the land rises and the fertile alluvial soils of the coast soon disappear. Annual rainfall also decreases with distance from the coast. However despite the increase in altitude it is almost as hot and humid here in summer as it is on the coast.

Winters are short but it can be bitterly cold at times, with temperatures in most places in the extreme north and west falling below freezing most nights in December and January. There is however a lot of sunshine.

In northern central Texas tornadoes can occur at any time but in May and June they are a particular hazard. All coastal areas are prone to hurricanes and tropical storms that may strike at any time between the beginning of June and the end of October, but especially in August and September.

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