<P> Spring comes with a gradual warm up from winter , lasting from March 20 through May . Temperatures are generally not hot yet , averaging from 75 -- 82 ° F ( 23.9 -- 27.8 ° C ) in the day and 56 -- 64 ° F ( 13.3 -- 17.8 ° C ) at night . Spring thunderstorms are common , often with spectacular lightning shows . This rainfall prompts Houston 's 10 - month - long `` growing season '' to begin . April sees the return of many types of insects , including butterflies and mosquitoes , to Houston 's warm climate . </P>
<P> Spring comes with a gradual warm up from winter , lasting from March 20 through May . Temperatures are generally not hot yet , averaging from 75 -- 82 ° F ( 23.9 -- 27.8 ° C ) in the day and 56 -- 64 ° F ( 13.3 -- 17.8 ° C ) at night . Spring thunderstorms are common , often with spectacular lightning shows . This rainfall prompts Houston 's 10 - month - long `` growing season '' to begin . April sees the return of many types of insects , including butterflies and mosquitoes , to Houston 's warm climate . </P>
when does it start warming up in houston
when does it start warming up in houston
March 20
March 20