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

Mechanicsville Iowa Climate Data

Monthly Average Climate Data for Mechanicsville Iowa

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	11.2 °F	28.1 °F	1.32 in.
February	14.8 °F	32.6 °F	1.54 in.
March	26.0 °F	45.7 °F	2.3 in.
April	37.0 °F	59.7 °F	3.77 in.
May	48.8 °F	70.6 °F	4.64 in.
June	59.0 °F	79.9 °F	5.32 in.
July	62.3 °F	82.9 °F	4.44 in.
August	59.9 °F	81.2 °F	4.35 in.
September	51.3 °F	75.1 °F	3.69 in.
October	39.5 °F	62.2 °F	3.02 in.
November	27.7 °F	46.8 °F	2.25 in.
December	17.4 °F	33.6 °F	1.73 in.
Annual	37.9 °F	58.2 °F	38.37 in.

Climate Data for Mechanicsville Iowa

Average First Frost Date	Oct. 1 - Oct. 10
Average Last Frost Date	Apr. 21 - Apr. 30
Average Days With Frost	100-125 Days
Plant Hardiness Zone	Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012	Zone 5a : -20°F to -15°F
Current Drought Conditions	Abnormally Dry
Köppen Climate Classification	Dfa - Humid Continental Hot Summers With Year Around Precipitation

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