select pnm,lnm,st_cd,st_nm,cnty_id,dm,dm_date,dm_hist,avg_tmax_data,avg_tmin_data,avg_prcp_data,rec_hi_data,rec_lo_data,avg_sndp_data,x,y,ff,lf,fd,hz,er,hz_source,kg,hzd,clim_stn_nm,hz12,hz90, feels_like_min,feels_like_max,days_of_prcp,snow,cloud_cover,humidity,wind_speed from worldtg8_pm.pm_climate_points_namer where surl = 'ontario' and st_surl='ohio' and iso_cc = 'US' and prim_loc in (1,2) Ontario Ohio Climate Data - Updated February 2026

Ontario Ohio Climate Data

Monthly Average Climate Data for Ontario Ohio

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.8 °F33.2 °F3.19 in.
February19.3 °F35.9 °F2.28 in.
March27.4 °F45.7 °F2.98 in.
April38.5 °F59.5 °F4.01 in.
May49.9 °F70.5 °F4.35 in.
June58.6 °F78.5 °F4.96 in.
July61.9 °F82.2 °F4.28 in.
August60.1 °F80.4 °F3.65 in.
September53.7 °F74.6 °F3.29 in.
October42.2 °F62.1 °F3.04 in.
November32.1 °F48.6 °F3.01 in.
December23.9 °F37.9 °F2.98 in.
Annual40.5 °F59.1 °F42.02 in.

Climate Data for Ontario Ohio

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness ZoneZone 6a : -10°F to -5°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
2026 plantmaps.com