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 = 'new-vienna' and st_surl='iowa' and iso_cc = 'US' and prim_loc in (1,2) New Vienna Iowa Climate Data - Updated February 2026

New Vienna Iowa Climate Data

Monthly Average Climate Data for New Vienna Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.9 °F26.0 °F1.24 in.
February12.6 °F30.5 °F1.36 in.
March24.3 °F43.5 °F2.11 in.
April35.5 °F57.5 °F3.89 in.
May47.2 °F68.9 °F4.65 in.
June57.5 °F78.5 °F5.84 in.
July61.1 °F81.6 °F4.81 in.
August58.7 °F79.9 °F4.15 in.
September50.0 °F73.3 °F3.81 in.
October38.1 °F60.4 °F2.98 in.
November26.4 °F44.8 °F2.23 in.
December15.8 °F31.9 °F1.67 in.
Annual36.3 °F56.4 °F38.74 in.

Climate Data for New Vienna Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness ZoneZone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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