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 = 'knox' and st_surl='indiana' and iso_cc = 'US' and prim_loc in (1,2) Knox Indiana Climate Data - Updated February 2026

Knox Indiana Climate Data

Monthly Average Climate Data for Knox Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.0 °F31.8 °F2.58 in.
February18.8 °F35.8 °F2.29 in.
March27.4 °F47.0 °F2.52 in.
April37.8 °F59.5 °F3.67 in.
May49.6 °F70.7 °F4.34 in.
June59.4 °F79.9 °F4.48 in.
July61.8 °F82.7 °F4.54 in.
August59.9 °F81.0 °F4.29 in.
September52.0 °F75.8 °F3.42 in.
October41.1 °F63.5 °F3.42 in.
November31.3 °F49.0 °F2.91 in.
December22.2 °F37.2 °F2.42 in.
Annual39.8 °F59.5 °F40.88 in.

Climate Data for Knox Indiana

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness ZoneZone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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