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

Monticello Wisconsin Climate Data

Monthly Average Climate Data for Monticello Wisconsin

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	11.0 °F	27.7 °F	1.5 in.
February	14.1 °F	31.8 °F	1.59 in.
March	24.7 °F	43.9 °F	2.07 in.
April	35.8 °F	57.8 °F	3.8 in.
May	47.5 °F	69.6 °F	4.27 in.
June	57.7 °F	79.5 °F	5.65 in.
July	61.6 °F	82.9 °F	4.18 in.
August	59.6 °F	81.2 °F	4.3 in.
September	51.0 °F	74.1 °F	3.79 in.
October	39.6 °F	61.2 °F	2.96 in.
November	28.5 °F	45.8 °F	2.26 in.
December	18.0 °F	33.2 °F	1.77 in.
Annual	37.4 °F	57.4 °F	38.14 in.

Climate Data for Monticello Wisconsin

Average First Frost Date	Oct. 1 - Oct. 10
Average Last Frost Date	May 1 - May 10
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	Moderate Drought
Köppen Climate Classification	Dfa - Humid Continental Hot Summers With Year Around Precipitation

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