Ashtabula Ohio Climate Data

Monthly Average Climate Data for Ashtabula Ohio

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.4 °F33.9 °F3.16 in.
February20.5 °F35.4 °F2.07 in.
March27.3 °F42.7 °F2.53 in.
April38.3 °F56.1 °F3.83 in.
May49.4 °F67.5 °F3.26 in.
June59.1 °F76.2 °F3.97 in.
July63.9 °F80.2 °F4.53 in.
August62.9 °F78.7 °F3.79 in.
September55.7 °F72.9 °F4.24 in.
October45.4 °F61.4 °F4.6 in.
November35.8 °F49.6 °F3.56 in.
December27.2 °F38.9 °F3.1 in.
Annual42.2 °F57.8 °F42.64 in.

Climate Data for Ashtabula Ohio

Average First Frost DateOct. 21 - Oct. 31
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 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year