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

Anna Illinois Climate Data

Monthly Average Climate Data for Anna Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.6 °F42.0 °F3.7 in.
February27.6 °F47.1 °F3.29 in.
March36.2 °F56.9 °F4.74 in.
April46.1 °F68.1 °F5.46 in.
May55.9 °F76.4 °F5.72 in.
June64.2 °F85.0 °F4.72 in.
July68.2 °F87.4 °F3.93 in.
August65.9 °F87.3 °F3.12 in.
September58.0 °F81.5 °F3.49 in.
October46.6 °F70.5 °F3.77 in.
November36.7 °F56.8 °F4.65 in.
December28.2 °F45.4 °F4.04 in.
Annual46.5 °F67 °F50.63 in.

Climate Data for Anna Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost50-75 Days
Plant Hardiness ZoneZone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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