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

Chemung Illinois Climate Data

Monthly Average Climate Data for Chemung Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.9 °F28.7 °F1.69 in.
February15.8 °F32.7 °F1.71 in.
March25.5 °F44.5 °F2.23 in.
April35.9 °F57.6 °F3.67 in.
May47.5 °F69.3 °F4.43 in.
June57.3 °F78.9 °F5.18 in.
July61.3 °F82.6 °F3.9 in.
August59.6 °F81.0 °F4.05 in.
September51.6 °F74.5 °F3.65 in.
October40.1 °F61.4 °F2.89 in.
November29.4 °F46.5 °F2.38 in.
December19.0 °F33.9 °F1.98 in.
Annual38 °F57.6 °F37.76 in.

Climate Data for Chemung Illinois

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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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