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 = 'rio' and st_surl='wisconsin' and iso_cc = 'US' and prim_loc in (1,2) Rio Wisconsin Climate Data - Updated February 2026

Rio Wisconsin Climate Data

Monthly Average Climate Data for Rio Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.1 °F26.7 °F1.39 in.
February12.9 °F30.9 °F1.39 in.
March23.3 °F42.8 °F2.03 in.
April34.9 °F56.5 °F3.8 in.
May46.7 °F68.9 °F4.27 in.
June56.7 °F78.5 °F5.31 in.
July60.9 °F82.1 °F4.24 in.
August58.9 °F80.3 °F3.95 in.
September50.7 °F73.2 °F3.47 in.
October39.0 °F60.0 °F2.88 in.
November27.7 °F44.8 °F2.11 in.
December16.8 °F32.1 °F1.68 in.
Annual36.6 °F56.4 °F36.52 in.

Climate Data for Rio Wisconsin

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 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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