Latest To Reach Below 32, 40s, and 50s

[Ptarmigan]

It has been a cool winter this year in Houston. You ever wondered what is the latest date to be 32 or below, 40s, and 50s in Houston? Here is data from Bush Intercontinental Airport (KIAH) from 1970 to 2009.

Let's start with 32.
Average Month To Last See 32 or Below
February

Median Month To Last See 32 or Below
February

Average Date To Last See 32 or Below
February 24

Median Date To Last See 32 or Below
February 27

Earliest Date To Last See 32 or Below
December 26, 1989 (Used -1 to represent December, since there was no 32 or below after the December 1989 Freeze.)

Latest Date To Last See 32 or Below
April 10, 1973


40's
Average Month To Last See 40's
April

Median Month To Last See 40's
April

Average Date To Last See 40's
April 21

Median Date To Last See 40's
April 21

Earliest Date To Last See 40's
March 25, 1986

Latest Date To Last See 40's
May 16, 1973


50's
Average Month To Last See 50's
May

Median Month To Last See 50's
May

Average Date To Last See 50's
May 19

Median Date To Last See 50's
May 19

Earliest Date To Last See 50's
April 26, 2003

Latest Date To Last See 50's
June 21, 1976

Could this year be a year where we can see 40's well into May and 50's into June? We shall see.

[Ptarmigan]

Here is the bar graph of the latest to reach 32, 40, and 50 at Intercontinental Airport. Negative day of the year is due to winter of 1989-90 not having 32 days after the great December 1989 freeze.

Click image for larger view.