Durham averages 46.7 days a year above 90°F, with September the wettest month at 5.15 in of normal rain. The hottest day on record was 106°F on Jul 5, 2024; the coldest, −9°F on Jan 21, 1985. The single biggest 24-hour rain event recorded was 6.45 in on Oct 8, 2016.
Climate and Average Weather Year Round in Durham
Year-round temperature
In Durham, the warmest months are June through September, with average daily highs between 83°F and 91°F. The coldest stretch runs December through February, with highs between 52°F and 56°F and overnight lows reaching 32°F.
Rainfall through the year
Rainfall in Durham averages 3.8 in per month over the long run. September is the wettest at 5.2 in, while February is the driest at 2.8 in.
Days at 90 °F or hotter
Durham averages 46.7 days per year at 90 °F or hotter. The hottest year on record saw 91 such days (2010); the coolest just 10 (2026).
Precipitation this year
As of May 29, Durham has received 8.3 in of precipitation this year — 51% below the long-term normal for this point in the year (17.0 in).