All-time Record Hottest and Coldest Temperatures Ever Recorded in Houston

Official weather records have been kept in Houston, Texas since 1889. There are the all-time record hottest and coldest temperatures ever recorded in Houston since 1889.

In general, due to its location near the Gulf of Mexico, Houston tends to have a much more milder climate than the extremes that can be found in the state of Texas. This is born out by the differences between the all-time hottest and coldest temperatures in Houston, compared to the all-time hottest and coldest temperatures in the state of Texas.

The difference between the all-time hottest and coldest temperatures ever recorded in Houston is 104 degrees. The difference between the all-time hottest and coldest temperatures ever recorded in the state of Texas is 143 degrees; a huge difference of 39 degrees.

The All-time Hottest Temperature Ever Recorded in Houston is 109 Degrees

The hottest temperature ever recorded in Houston, Texas is 109 degrees, which has occurred on two separate days. The first time it was 109 degrees was on September 4, 2000, while the second time occurred on August 27, 2011. Those are two pretty recent dates.

As anyone who lives in the Houston area knows, 100 degree days are not at all rare in Houston. However, Houston only has 100 degree days in the months of June, July, August, and September. The city has never had a 100 degree day in any of the other eight months of the year.

I've been to Houston a couple of times in May when it certainly felt like it was 100 degrees , but that is because of the relatively high humidity levels the city experiences. Houston has the third highest humidity level of the major cities in the United States.

• All-time Hottest Temperature Ever Recorded in Texas is 120 Degrees 

The hottest temperature ever recorded in the state of Texas is 120 degrees, which occurred in Seymour on August 12, 1936. 

The difference between the all-time hottest temperature in Houston (109) and the all-time hottest temperature in Texas (120) is 11 degrees. Not an enormous difference, but still a significant one.

The All-time Coldest Temperature Ever Recorded in Houston is 5 Degrees

The coldest temperature ever recorded in Houston is five degrees, which occurred on January 18, 1930. So the city of Houston has never experienced a below zero weather day, and has only had four days since 1889 when the temperature was below 10 degrees.

One of those days was on December 23, 1989, when the temperature was 7 degrees. Other relatively recent cold days in Houston were December 24, 1989 and December 25, 1983, when the temperature dipped to 11 degrees on both dates. It was 12 degrees on January 11, 1982.

Below freezing temperature days can occur in the city of Houston from mid-November through late March. But Houston averages only 18 days a year when the temperature dips below the freezing mark so those days are not very common.

With an annual average daily temperature of 67.9 degrees, Houston is one of the mildest temperature cities in the United States.

• The All-time Coldest Temperature Ever Recorded in Texas is -23 Degrees 

The coldest temperature ever recorded in the state of Texas is -23 degrees, which occurred on February 8, 1933, in the city of Seminole. 

The difference between the all-time coldest temperature ever recorded in Houston (5), and the all-time coldest temperature ever recorded in Texas (-23) degrees 28 degrees.

That is a huge difference, much higher than the difference between the all-time hottest temperatures in Houston and Texas. The big differences between temperature extremes in Texas and temperature extremes in Houston, shows just how much more milder a climate Houston has than many parts of Texas does.