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 = 'wiscasset' and st_surl='maine' and iso_cc = 'US' and prim_loc in (1,2) Wiscasset Maine Climate Data - Updated February 2026

Wiscasset Maine Climate Data

Monthly Average Climate Data for Wiscasset Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.9 °F30.7 °F3.89 in.
February14.1 °F33.7 °F3.59 in.
March23.3 °F41.2 °F4.37 in.
April33.3 °F52.6 °F4.47 in.
May43.6 °F63.7 °F3.69 in.
June52.7 °F72.3 °F4.5 in.
July58.8 °F78.3 °F3.51 in.
August57.6 °F77.5 °F3.17 in.
September50.5 °F70.3 °F3.97 in.
October39.9 °F58.3 °F5.46 in.
November30.2 °F47.2 °F4.59 in.
December19.7 °F36.7 °F4.83 in.
Annual36.3 °F55.2 °F50.04 in.

Climate Data for Wiscasset Maine

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness ZoneZone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2026 plantmaps.com