Riley Kansas Climate Data

Monthly Average Climate Data for Riley Kansas

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.5 °F39.1 °F0.72 in.
February22.1 °F43.9 °F1.08 in.
March32.3 °F55.4 °F1.99 in.
April41.8 °F65.6 °F3.15 in.
May53.3 °F74.6 °F4.99 in.
June63.7 °F85.4 °F4.81 in.
July67.7 °F90.0 °F4.39 in.
August66.1 °F88.0 °F4.04 in.
September57.0 °F80.5 °F2.99 in.
October44.8 °F68.2 °F2.46 in.
November32.2 °F54.3 °F1.51 in.
December23.0 °F42.4 °F1.13 in.
Annual43.5 °F65.6 °F33.26 in.

Climate Data for Riley Kansas

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation