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 = 'kewanee' and st_surl='illinois' and iso_cc = 'US' and prim_loc in (1,2) Kewanee Illinois Climate Data - Updated February 2026

Kewanee Illinois Climate Data

Monthly Average Climate Data for Kewanee Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.4 °F29.8 °F1.86 in.
February16.8 °F34.4 °F2.01 in.
March27.1 °F47.3 °F2.42 in.
April37.8 °F60.4 °F3.92 in.
May50.0 °F71.5 °F5.02 in.
June59.9 °F80.3 °F4.94 in.
July63.0 °F83.2 °F3.8 in.
August60.7 °F81.7 °F3.75 in.
September52.2 °F76.0 °F3.63 in.
October40.7 °F63.3 °F2.92 in.
November29.4 °F48.2 °F2.47 in.
December19.3 °F35.3 °F2.08 in.
Annual39.2 °F59.3 °F38.82 in.

Climate Data for Kewanee Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 11 - Apr. 20
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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