Tulsa averages 73.7 days a year above 90°F, with May the wettest month at 5.73 in of normal rain. The hottest day on record was 113°F on Aug 3, 2011; the coldest, −13°F on Feb 16, 2021. The single biggest 24-hour rain event recorded was 6.95 in on May 27, 1984.
Climate and Average Weather Year Round in Tulsa
Year-round temperature
In Tulsa, the warmest months are June through September, with average daily highs between 85°F and 94°F. The coldest stretch runs December through February, with highs between 49°F and 54°F and overnight lows reaching 28°F.
Rainfall through the year
Rainfall in Tulsa averages 3.4 in per month over the long run. May is the wettest at 5.7 in, while February is the driest at 1.6 in.
Days at 90 °F or hotter
Tulsa averages 73.7 days per year at 90 °F or hotter. The hottest year on record saw 101 such days (2011); the coolest just 4 (2026).
Precipitation this year
As of May 28, Tulsa has received 16.3 in of precipitation this year — 3% above the long-term normal for this point in the year (15.9 in).