Topeka averages 39 days a year above 90°F, with May the wettest month at 5.31 in of normal rain. The hottest day on record was 109°F on Aug 19, 2023; the coldest, −21°F on Feb 16, 2021. The single biggest 24-hour rain event recorded was 4.28 in on Sep 10, 2015.
Climate and Average Weather Year Round in Topeka
Year-round temperature
In Topeka, the warmest months are June through September, with average daily highs between 80°F and 89°F. The coldest stretch runs December through February, with highs between 40°F and 45°F and overnight lows reaching 19°F.
Rainfall through the year
Rainfall in Topeka averages 3.1 in per month over the long run. May is the wettest at 5.3 in, while January is the driest at 0.9 in.
Days at 90 °F or hotter
Topeka averages 39.0 days per year at 90 °F or hotter. The hottest year on record saw 75 such days (2012); the coolest just 5 (2026).
Precipitation this year
As of May 28, Topeka has received 12.8 in of precipitation this year — 2% below the long-term normal for this point in the year (13.1 in).