Carrollton averages 84.5 days a year above 90°F, with October the wettest month at 5.26 in of normal rain. The hottest day on record was 112°F on Jun 26, 1980; the coldest, 0°F on Feb 17, 2021. The single biggest 24-hour rain event recorded was 5.42 in on May 16, 1989.
Climate and Average Weather Year Round in Carrollton
Year-round temperature
In Carrollton, the warmest months are June through September, with average daily highs between 87°F and 95°F. The coldest stretch runs December through February, with highs between 56°F and 60°F and overnight lows reaching 36°F.
Rainfall through the year
Rainfall in Carrollton averages 3.5 in per month over the long run. October is the wettest at 5.3 in, while July is the driest at 2.2 in.
Days at 90 °F or hotter
Carrollton averages 84.5 days per year at 90 °F or hotter. The hottest year on record saw 120 such days (2024); the coolest just 2 (2026).
Precipitation this year
As of May 29, Carrollton has received 7.8 in of precipitation this year — 57% below the long-term normal for this point in the year (18.1 in).