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 = 'williamstown' and st_surl='kentucky' and iso_cc = 'US' and prim_loc in (1,2) Williamstown Kentucky Climate Data - Updated February 2026

Williamstown Kentucky Climate Data

Monthly Average Climate Data for Williamstown Kentucky

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.6 °F40.1 °F3.25 in.
February26.2 °F44.7 °F2.9 in.
March34.0 °F54.0 °F4.18 in.
April44.4 °F66.2 °F4.62 in.
May54.3 °F75.0 °F4.9 in.
June61.8 °F82.7 °F4.87 in.
July65.7 °F86.2 °F4.23 in.
August64.7 °F85.3 °F3.23 in.
September57.9 °F79.8 °F3.19 in.
October46.2 °F68.9 °F3.22 in.
November35.6 °F54.8 °F3.22 in.
December28.2 °F44.2 °F3.69 in.
Annual45.2 °F65.2 °F45.5 in.

Climate Data for Williamstown Kentucky

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost50-75 Days
Plant Hardiness ZoneZone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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