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 = 'palos-heights' and st_surl='illinois' and iso_cc = 'US' and prim_loc in (1,2) Palos Heights Illinois Climate Data - Updated February 2026

Palos Heights Illinois Climate Data

Monthly Average Climate Data for Palos Heights Illinois

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	17.3 °F	32.1 °F	2.18 in.
February	20.1 °F	35.9 °F	2.07 in.
March	29.4 °F	47.2 °F	2.39 in.
April	39.7 °F	60.0 °F	3.98 in.
May	50.6 °F	71.0 °F	4.76 in.
June	60.7 °F	80.9 °F	4.33 in.
July	65.4 °F	85.3 °F	4.31 in.
August	63.9 °F	83.2 °F	4.21 in.
September	56.3 °F	76.9 °F	3.25 in.
October	44.0 °F	63.7 °F	3.49 in.
November	33.0 °F	49.3 °F	2.56 in.
December	23.0 °F	37.2 °F	2.32 in.
Annual	42 °F	60.2 °F	39.85 in.

Climate Data for Palos Heights Illinois

Average First Frost Date	Oct. 21 - Oct. 31
Average Last Frost Date	Apr. 1 - Apr. 10
Average Days With Frost	75-100 Days
Plant Hardiness Zone	Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012	Zone 5b : -15°F to -10°F
Current Drought Conditions	Normal
Köppen Climate Classification	Dfa - Humid Continental Hot Summers With Year Around Precipitation

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