Jefferson Ohio Climate Data

Monthly Average Climate Data for Jefferson Ohio

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.2 °F33.3 °F3.24 in.
February18.2 °F35.6 °F2.3 in.
March25.8 °F44.3 °F2.95 in.
April36.4 °F57.7 °F3.93 in.
May47.2 °F69.1 °F3.54 in.
June56.2 °F77.4 °F4.0 in.
July60.3 °F81.2 °F4.27 in.
August58.7 °F79.6 °F3.57 in.
September52.3 °F73.6 °F4.07 in.
October42.3 °F61.5 °F4.22 in.
November33.4 °F49.3 °F3.6 in.
December25.1 °F38.4 °F3.55 in.
Annual39.5 °F58.4 °F43.24 in.

Climate Data for Jefferson Ohio

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year