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 = 'port-washington' and st_surl='wisconsin' and iso_cc = 'US' and prim_loc in (1,2) Port Washington Wisconsin Climate Data - Updated February 2026

Port Washington Wisconsin Climate Data

Monthly Average Climate Data for Port Washington Wisconsin

Switch Data to Celsius/Metric Units

Month	Avg. Low	Avg. High	Avg. Precip
January	14.5 °F	28.9 °F	1.77 in.
February	16.9 °F	32.1 °F	1.4 in.
March	25.8 °F	41.3 °F	1.81 in.
April	35.6 °F	51.8 °F	3.64 in.
May	45.8 °F	63.1 °F	3.87 in.
June	55.9 °F	73.2 °F	3.92 in.
July	62.0 °F	79.2 °F	3.79 in.
August	61.4 °F	78.1 °F	4.02 in.
September	54.0 °F	71.1 °F	3.0 in.
October	42.5 °F	58.6 °F	2.65 in.
November	31.0 °F	45.9 °F	2.17 in.
December	20.8 °F	34.5 °F	1.8 in.
Annual	38.9 °F	54.8 °F	33.84 in.

Climate Data for Port Washington Wisconsin

Average First Frost Date	Oct. 11 - Oct. 20
Average Last Frost Date	May 1 - May 10
Average Days With Frost	100-125 Days
Plant Hardiness Zone	Zone 6a : -10°F to -5°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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