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 = 'shenandoah' and st_surl='iowa' and iso_cc = 'US' and prim_loc in (1,2) Shenandoah Iowa Climate Data - Updated February 2026

Shenandoah Iowa Climate Data

Monthly Average Climate Data for Shenandoah Iowa

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	13.3 °F	33.2 °F	0.86 in.
February	17.3 °F	38.3 °F	1.18 in.
March	28.2 °F	51.3 °F	1.91 in.
April	38.8 °F	63.5 °F	3.35 in.
May	51.5 °F	73.7 °F	5.9 in.
June	62.1 °F	82.9 °F	5.49 in.
July	65.6 °F	86.4 °F	4.28 in.
August	62.7 °F	84.8 °F	3.53 in.
September	53.1 °F	78.8 °F	3.13 in.
October	40.6 °F	66.5 °F	2.78 in.
November	28.4 °F	50.5 °F	1.8 in.
December	18.7 °F	37.9 °F	1.3 in.
Annual	40 °F	62.3 °F	35.51 in.

Climate Data for Shenandoah Iowa

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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