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

Ophiem Illinois Climate Data

Monthly Average Climate Data for Ophiem Illinois

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	14.1 °F	30.5 °F	1.63 in.
February	17.6 °F	35.0 °F	1.87 in.
March	28.1 °F	48.2 °F	2.3 in.
April	39.0 °F	61.4 °F	3.8 in.
May	51.0 °F	72.2 °F	4.84 in.
June	60.9 °F	81.1 °F	4.85 in.
July	64.5 °F	84.1 °F	3.92 in.
August	62.3 °F	82.5 °F	3.76 in.
September	54.0 °F	76.6 °F	3.6 in.
October	42.3 °F	63.9 °F	2.92 in.
November	30.4 °F	48.7 °F	2.32 in.
December	20.2 °F	35.9 °F	1.99 in.
Annual	40.4 °F	60 °F	37.8 in.

Climate Data for Ophiem Illinois

Average First Frost Date	Oct. 11 - Oct. 20
Average Last Frost Date	Apr. 21 - Apr. 30
Average Days With Frost	100-125 Days
Plant Hardiness Zone	Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012	Zone 5b : -15°F to -10°F
Current Drought Conditions	Abnormally Dry
Köppen Climate Classification	Dfa - Humid Continental Hot Summers With Year Around Precipitation

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