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

Greenfield Wisconsin Climate Data

Monthly Average Climate Data for Greenfield Wisconsin

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	13.4 °F	29.2 °F	1.81 in.
February	16.4 °F	32.8 °F	1.72 in.
March	25.4 °F	43.3 °F	2.05 in.
April	35.8 °F	55.5 °F	4.02 in.
May	46.7 °F	67.2 °F	4.2 in.
June	56.8 °F	77.3 °F	4.96 in.
July	62.1 °F	82.0 °F	3.61 in.
August	60.7 °F	80.7 °F	3.8 in.
September	52.5 °F	73.7 °F	3.35 in.
October	41.0 °F	60.9 °F	2.91 in.
November	29.9 °F	46.7 °F	2.2 in.
December	19.7 °F	34.5 °F	2.09 in.
Annual	38.4 °F	57 °F	36.72 in.

Climate Data for Greenfield Wisconsin

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	Normal
Köppen Climate Classification	Dfa - Humid Continental Hot Summers With Year Around Precipitation

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